Manual vacuumizing structure and sealing cover

Abstract

The utility model discloses a manual vacuum-pumping structure and a sealing cover, and the manual vacuum-pumping structure comprises a valve seat installed on the outer wall of a sealing container, a valve seat provided with a connecting hole and a mounting groove, and an inner cavity of the sealing container, the connecting hole, the mounting groove and the outside of the sealing container are communicated in sequence; the valve plug is installed in a floating mode in the center line direction of the connecting hole so as to communicate or block the sealed container; the pressing cover is installed in the installation groove, an exhaust cavity is formed between the pressing cover and the valve plug, the pressing cover is provided with an annular sealing part, the annular sealing part is arranged around the exhaust cavity, and the peripheral wall of the annular sealing part abuts against the peripheral wall of the installation groove in a sealed mode; by pressing the pressing cover towards one side of the valve plug, the size of the exhaust cavity is reduced, and the annular sealing part is driven to elastically deform outwards, so that gas in the exhaust cavity is exhausted to the outside of the sealed container. Air in the sealed container is extracted in a manual pressing mode to generate a vacuum condition, the whole structure is simple, operation is convenient, and the use cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of sealed containers, in particular to a manual vacuum pumping structure and a sealing cover with the manual vacuum pumping structure. Background Art

[0002] There are two general methods for preserving food and other items that are prone to spoilage: refrigeration and vacuum sealing at room temperature or low temperature. Among them, vacuum preservation at room temperature or low temperature is particularly effective. Currently, a sealed container is generally heated to create a vacuum condition, or an external vacuum pump is used to extract the air from the sealed container to create a vacuum condition. However, both methods require the use of other equipment, such as heating equipment and electric pumps, which are inconvenient to operate and have high costs. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a manual vacuum pumping structure, which extracts air in a sealed container by manually pressing to create a vacuum condition, has a simple overall structure, is easy to operate, and has low use cost.

[0004] The utility model also provides a sealing cover with the above-mentioned manual vacuum pumping structure.

[0005] A manual vacuum pumping structure according to the utility model comprises:

[0006] A valve seat is installed on the outer wall of the sealed container, the valve seat is provided with a connecting hole and a mounting groove, the inner cavity of the sealed container, the connecting hole and the mounting groove are connected in sequence, and the side of the mounting groove away from the connecting hole is connected to the outside of the sealed container;

[0007] A valve plug is installed in a floating manner along the center line direction of the connecting hole to connect or block the sealed container;

[0008] A pressing cover is an elastic component installed in the installation groove, an exhaust cavity is provided between the pressing cover and the valve plug, and the pressing cover is provided with an annular sealing portion, the annular sealing portion is arranged around the exhaust cavity, and the outer peripheral wall of the annular sealing portion is pressed and sealed against the peripheral wall of the installation groove;

[0009] By pressing the pressing cover toward one side of the valve plug, the volume of the exhaust chamber is reduced and the annular sealing portion is driven to elastically deform outward to exhaust the gas in the exhaust chamber to the outside of the sealed container.

[0010] A manual vacuum pumping structure according to the utility model has at least the following beneficial effects: after the pressing cover is pressed by hand, the gas in the exhaust chamber is discharged to the outside of the sealed container, and then, due to the air pressure difference between the exhaust chamber and the inside of the sealed container, the valve plug moves toward one side of the center of the exhaust chamber, and the gas in the sealed container is drawn into the exhaust chamber, and the pressing cover is reset and bulged. By continuously pressing the pressing cover by hand, the gas inside the sealed container is continuously discharged outward, and the overall structure is simple, the operation is convenient, and the use cost is low.

[0011] According to a manual vacuum structure described in the utility model, the valve plug is provided with a first sealing part and a second sealing part, the first sealing part and the second sealing part are arranged at intervals along the center line direction of the connecting hole, the first sealing part is suitable for sealing one end of the connecting hole, and the second sealing part is suitable for sealing the other end of the connecting hole.

[0012] According to a manual vacuum pumping structure described in the utility model, the valve plug is provided with a main body, the valve plug is an elastic component, and the first sealing cover and the second sealing cover are respectively located at two ends of the main body and are integrally provided with the main body.

[0013] According to the manual vacuum pumping structure described in the utility model, a deformation hole is provided in the middle of the valve plug, and the outer wall of the valve plug is suitable for shrinking and deforming toward the center of the deformation hole.

[0014] According to a manual vacuum pumping structure described in the utility model, a support ring is fixedly provided on the hole wall of the connecting hole, the outer diameter of the main body matches the inner diameter of the support ring, a ventilation groove is provided on the outer wall of the main body, and a ventilation space is left between the groove wall of the ventilation groove and the inner wall of the support ring.

[0015] According to a manual vacuum pumping structure described in the utility model, an air relief groove is provided on the cavity wall of the exhaust cavity on one side facing the center of the connecting hole, and the air relief groove extends downwardly and obliquely toward the side of the center of the connecting hole and is connected with the connecting hole.

[0016] According to a manual vacuum pumping structure described in the utility model, the connecting hole includes a first countersunk hole, a part of the valve plug is placed in the first countersunk hole, and the air release groove is connected to the first countersunk hole.

[0017] According to a manual vacuum pumping structure described in the utility model, a deformation portion is provided on the top of the pressing cover, the deformation portion is convexly arranged toward a side away from the center of the exhaust cavity, and the deformation portion is suitable for being concavely deformed toward the center of the exhaust cavity.

[0018] According to a manual vacuum pumping structure described in the utility model, the valve seat is provided with a matching portion, the mounting groove is provided on the matching portion, and the matching portion is made of a hard material.

[0019] The sealing cover according to the utility model comprises a manual vacuum pumping structure according to the utility model.

[0020] The sealing cover of the utility model has at least the following beneficial effects: a manual vacuum pumping structure is directly arranged on the sealing cover, and the gas inside the sealed container is continuously discharged outward by continuously pressing the pressing cover by hand. The overall structure is simple and easy to operate. The sealed container closed with the sealing cover can be easily made to have a vacuum condition without the aid of external equipment, and the use cost is low.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic cross-sectional structure diagram of a manual vacuum pumping structure according to an embodiment of the utility model;

[0024] Figure 2 This is an exploded view of a manual vacuum pumping structure according to an embodiment of the utility model;

[0025] Figure 3 It is a schematic structural diagram of the sealing cover of an embodiment of the utility model.

[0026] Description of Figure Numbers:

[0027] Valve seat 100; connecting hole 101; support ring 1011; first countersunk hole 1012; mounting groove 102; exhaust cavity 1021; air release groove 1022; matching portion 110; mounting portion 120;

[0028] Valve plug 200; deformation hole 201; first cover portion 210; main body 220; ventilation groove 221; second cover portion 230;

[0029] Press cover 300; annular sealing portion 301; deformation portion 302;

[0030] Cover body 400. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the 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 on the present invention.

[0033] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] There are two general methods for preserving food and other items that are prone to spoilage: refrigeration and vacuum sealing at room temperature or low temperature. Among them, vacuum preservation at room temperature or low temperature is particularly effective. Currently, a sealed container is generally heated to create a vacuum condition, or an external vacuum pump is used to extract the air from the sealed container to create a vacuum condition. However, both methods require the use of other equipment, such as heating equipment and electric pumps, which are inconvenient to operate and have high costs.

[0037] For this reason, Figure 1 and Figure 2 As shown, a manual vacuum pumping structure proposed by the utility model comprises a valve seat 100 installed on the outer wall of a sealed container, a valve plug 200 installed on the valve seat 100, and a pressing cover 300 installed on the valve seat 100. Specifically, the valve seat 100 is provided with a connecting hole 101 and a mounting groove 102, wherein the inner cavity of the sealed container, the connecting hole 101 and the mounting groove 102 are connected in sequence, and the side of the mounting groove 102 away from the connecting hole 101 is connected to the outside of the sealed container. Further, the valve plug 200 is installed in a floating manner along the center line direction of the connecting hole 101 to connect or block the sealed container. For example, after the valve plug 200 moves into position in the connecting hole 101, the connecting hole 101 is blocked to block the sealed container; when the valve plug 200 does not move into position in the connecting hole 101, the mounting groove 102 is connected to the sealed container through the connecting hole 101. In addition, the pressing cover 300 is installed in the installation groove 102, and an exhaust cavity 1021 is provided between the pressing cover 300 and the valve plug 200, and the pressing cover 300 is provided with an annular sealing portion 301, which is arranged around the exhaust cavity 1021, and the outer peripheral wall of the annular sealing portion 301 is pressed and sealed against the peripheral wall of the installation groove 102. In addition, the pressing cover 300 is an elastic component, and by pressing the pressing cover 300 toward one side of the valve plug 200, the volume of the exhaust cavity 1021 is reduced and the annular sealing portion 301 is driven to deform elastically outward, so as to discharge the gas in the exhaust cavity 1021 to the outside of the sealed container. It should be noted that after the pressing cover 300 is pressed manually, the gas in the exhaust chamber 1021 is discharged to the outside of the sealed container, and then, due to the air pressure difference between the exhaust chamber 1021 and the inside of the sealed container, the valve plug 200 moves toward one side of the center of the exhaust chamber 1021, and the gas in the sealed container is drawn into the exhaust chamber 1021. The pressing cover 300 is reset and bulged, and the pressing cover 300 is continuously pressed manually to continuously discharge the gas inside the sealed container. The overall structure is simple, the operation is convenient, and the use cost is low.

[0038] Reference Figure 1 and Figure 2In some embodiments of the present invention, the valve plug 200 seals the connection hole 101 by pressing against the upper and lower edges of the connection hole 101. Specifically, the valve plug 200 is provided with a first sealing portion 210 and a second sealing portion 230, which are arranged at intervals along the center line direction of the connection hole 101. The first sealing portion 210 is suitable for sealing one end of the connection hole 101, and the second sealing portion 230 is suitable for sealing the other end of the connection hole 101. Further, the valve plug 200 is provided with a main body 220, the length of which is greater than the length of the connection hole 101, so that the valve plug 200 can slide along the center line direction of the connection hole 101. In some embodiments, at least one of the first cover part and the second cover part can be detachably mounted on the main body (not shown in the figure), so that after one of the first cover part and the second cover part is connected to the main body, the main body is inserted from one end of the connecting hole, and then the other of the first cover part and the second cover part is installed. At this time, the material selection of the valve plug is more abundant. For example, the main body is a steel part, and the gap between the main body and the connecting hole is matched to allow gas to flow. The first cover part and the second cover part are elastic material parts, and the sealing performance of the upper and lower edges of the connecting hole is better. In some embodiments of the utility model, the valve plug 200 is an elastic part, and the first cover and the second cover are respectively located at both ends of the main body 220 and are integrally arranged with the main body 220. For example, the valve plug 200 is a silicone part, which meets the use requirements in the food field and can be applied to sealed containers for food storage. The structure is simpler, and the elastically deformable valve plug 200 can be directly assembled into the connecting hole 101. In some embodiments, the outer diameter of the main body is smaller than the inner diameter of the connecting hole (not shown in the figure), and the valve plug assembly is more convenient. In some embodiments of the utility model, a deformation hole 201 is provided in the middle of the valve plug 200, and the outer wall of the valve plug 200 is suitable for shrinking and deforming toward the center of the deformation hole 201. Furthermore, when the valve plug 200 is inserted into the connection hole 101 for assembly, due to the buffering of the deformation hole 201, the outer wall of the valve plug 200 can shrink inward, further facilitating the assembly of the valve plug 200 into the connection hole 101. In some embodiments, the outer diameter of the main body 220 matches the inner diameter of the connection hole 101, so that the valve plug 200 is more tightly connected after assembly. Furthermore, the outer wall of the main body 220 is provided with a ventilation groove 221, and the groove wall of the ventilation groove 221 and the hole wall of the connection hole 101 leave a ventilation space, which can make the gas in the sealed container flow to the exhaust cavity 1021. In some embodiments of the utility model, a support ring 1011 is fixedly provided on the hole wall of the connecting hole 101, the outer diameter of the main body 220 matches the inner diameter of the support ring 1011, and a ventilation groove 221 is provided on the outer wall of the main body 220, leaving a ventilation space between the groove wall of the ventilation groove 221 and the inner wall of the support ring 1011.Among them, the support ring 1011 is arranged in the middle of the connecting hole 101, and forms a first countersunk hole 1012 and a second countersunk hole at both ends of the connecting hole 101. In some embodiments, the first sealing part 210 is located in the first countersunk hole 1012, and the second sealing part 230 is located in the second countersunk hole.

[0039] It should be noted that after the pressing cover 300 is pressed toward one side of the valve plug 200, the pressing cover 300 is tightly fitted with the bottom wall of the exhaust cavity 1021, and the valve plug 200 may not be smoothly sucked up, resulting in the gas in the sealed container not being smoothly extracted into the exhaust cavity 1021, and the pressing cover 300 cannot be reset and bulged. In response to this, the cavity wall of the exhaust cavity 1021 on the side facing the center of the connecting hole 101 is provided with an air release groove 1022, which extends downwardly toward the side of the center of the connecting hole 101 and is connected to the connecting hole 101, which can ensure that the pressing cover 300 will be reset and bulged after being pressed. The provision of the air release groove 1022 can ensure that after the pressing cover 300 is pressed, the valve plug 200 is sucked up toward one side of the center of the exhaust chamber 1021, and the gas in the sealed container is extracted into the exhaust chamber 1021, and then the pressing cover 300 is reset and bulged, so that the user can continue to press and exhaust, so that the vacuum degree in the sealed container reaches a suitable range. In some embodiments, the user continuously presses the pressing cover 300, and the vacuum degree in the sealed container gradually increases from 0kpa to 25kpa. Specifically, the air release groove 1022 is connected to the first countersunk hole 1012. Since the first sealing portion 210 is located in the first countersunk hole 1012, after the pressing cover 300 is pressed, the valve plug 200 is sucked up toward one side of the center of the exhaust chamber 1021, and the airflow passes through the first countersunk hole 1012 and flows into the air release groove 1022, which will break the fitting state between the pressing cover 300 and the bottom wall of the exhaust chamber 1021. As a result, the pressing cover 300 is reset and bulged, which is convenient for the user to press the cover next time.

[0040] In some embodiments of the present invention, Figure 1 As shown, a deformation portion 302 is provided on the top of the pressing cover 300, and the deformation portion 302 is convexly arranged toward the side away from the center of the exhaust chamber 1021, and the deformation portion 302 is suitable for being deformed by being concave toward the center of the exhaust chamber 1021, so that the user can observe the current sealing state of the sealed container. It is easy to understand that after the user presses the pressing cover 300 and discharges the gas in the sealed container, the gas in the sealed container will be extracted into the exhaust chamber 1021. At this time, there will be an air pressure difference between the exhaust chamber 1021 and the outside world, and the deformation portion 302 will be concave toward one side of the center of the exhaust chamber 1021. Therefore, when the user observes that the deformation portion 302 is concave, it can be judged that the sealed container has a certain vacuum condition. Relatively speaking, when the sealed container leaks or the vacuum condition is destroyed, the air pressure in the exhaust chamber 1021 will also return to normal, so that the deformation portion 302 will be reset and bulged, and the user can know the condition of the vacuum condition being destroyed, so as to make timely adjustments.

[0041] It is easy to understand that when the outer diameter of the pressing cover is smaller than the inner diameter of the mounting groove, when the pressing cover is pressed, the bottom end of the pressing cover can be turned outward, and the airflow of the exhaust cavity flows through the pressing cover and the mounting groove, and then breaks the annular sealing part to flow out (not shown in the figure). Figure 1 and Figure 2 , when the outer diameter of the pressing cover 300 matches the inner diameter of the mounting groove 102, the bottom wall of the pressing cover 300 is provided with a groove for the gas in the exhaust chamber 1021 to flow to the annular sealing portion 301. When the pressing cover 300 is pressed, the gas in the exhaust chamber 1021 flows to the annular sealing portion 301 through the groove, and then the annular sealing portion 301 is opened to flow out. It should be noted that at this time, the space formed by the groove provided on the bottom wall of the pressing cover 300 can also be regarded as a part of the exhaust chamber 1021. Since the pressing cover 300 is an elastic component, if the part of the valve seat 100 that matches the pressing cover 300 is also elastic, there will be a situation where it cannot be tightly connected, and the sealing performance of the two after matching is poor. In this regard, the valve seat 100 is provided with a matching portion 110, and the mounting groove 102 is provided in the matching portion 110. The matching portion 110 is made of a hard material, for example, the matching portion 110 is a hard plastic. In some embodiments, the valve seat is made of a hard material as a whole (not shown in the figure). The outer side of the valve seat 100 is fixedly connected to the outer wall of the sealed container and sealed. In some embodiments of the present utility model, the valve seat 100 also includes an elastic mounting portion 120, which is arranged around the peripheral wall of the matching portion 110 and is fixedly connected to the peripheral wall of the matching portion 110. Optionally, the mounting portion 120 is a silicone component, and the mounting portion 120 is injection molded on the matching portion 110. In addition, the mounting portion 120 is used to be fixed to the outer wall of the sealed container. It is easy to understand that the elastic mounting portion 120 can be well sealed with the sealed container. In some embodiments, the elastic mounting portion 120 is also provided with a ventilation structure, which can be manually operated to drive the sealed container to conduct with the outside, so as to facilitate the opening of the sealed container. Specifically, the mounting portion 120 is installed on the outer wall of the hard sealed container, and the mounting portion 120 is provided with a handle, which is located on the outer side of the sealed container and pressed against the end face of the sealed container. In the natural state, the connection between the mounting portion 120 and the sealed container is sealed. When it is necessary to balance the air pressure inside and outside the sealed container, the user opens the handle outward to connect the inside of the sealed container with the outside of the sealed container.

[0042] Reference Figure 3According to the sealing cover of the embodiment of the utility model, a manual vacuum pumping structure is included. The sealing cover is directly provided with a manual vacuum pumping structure, and the gas inside the sealed container is continuously discharged outward by continuously pressing the pressing cover 300 manually. The overall structure is simple and easy to operate. The sealed container covered with the sealing cover can be easily made to have a vacuum condition without the help of external equipment, and the use cost is low.

[0043] Other structures and operations of the sealing cover according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0044] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A manual vacuum pumping structure, characterized in that: include: A valve seat is installed on the outer wall of the sealed container, the valve seat is provided with a connecting hole and a mounting groove, the inner cavity of the sealed container, the connecting hole and the mounting groove are connected in sequence, and the side of the mounting groove away from the connecting hole is connected to the outside of the sealed container; A valve plug is installed in a floating manner along the center line direction of the connecting hole to connect or block the sealed container; A pressing cover is an elastic component installed in the installation groove, an exhaust cavity is provided between the pressing cover and the valve plug, and the pressing cover is provided with an annular sealing portion, the annular sealing portion is arranged around the exhaust cavity, and the outer peripheral wall of the annular sealing portion is pressed and sealed against the peripheral wall of the installation groove; By pressing the pressing cover toward one side of the valve plug, the volume of the exhaust chamber is reduced and the annular sealing portion is driven to elastically deform outward to exhaust the gas in the exhaust chamber to the outside of the sealed container.

2. A manual vacuum pumping structure according to claim 1, characterized in that: The valve plug is provided with a first cover part and a second cover part, the first cover part and the second cover part are arranged at intervals along the center line direction of the connecting hole, the first cover part is suitable for blocking one end of the connecting hole, and the second cover part is suitable for blocking the other end of the connecting hole.

3. A manual vacuum pumping structure according to claim 2, characterized in that: The valve plug is provided with a main body, and the valve plug is an elastic component. The first cover and the second cover are respectively located at two ends of the main body and are integrally provided with the main body.

4. A manual vacuum pumping structure according to claim 3, characterized in that: A deformation hole is provided in the middle of the valve plug, and the outer wall of the valve plug is suitable for shrinking and deforming toward the center of the deformation hole.

5. A manual vacuum pumping structure according to claim 3, characterized in that: A support ring is fixedly provided on the hole wall of the connecting hole, the outer diameter of the main body matches the inner diameter of the support ring, a ventilation groove is provided on the outer wall of the main body, and a ventilation space is left between the groove wall of the ventilation groove and the inner wall of the support ring.

6. A manual vacuum pumping structure according to any one of claims 1 to 5, characterized in that: A gas relief groove is arranged on a cavity wall of the exhaust cavity on one side facing the center of the connecting hole. The gas relief groove extends obliquely downward toward one side of the center of the connecting hole and is communicated with the connecting hole.

7. A manual vacuum pumping structure according to claim 6, characterized in that: The connecting hole includes a first countersunk hole, a portion of the valve plug is disposed in the first countersunk hole, and the air relief groove is communicated with the first countersunk hole.

8. A manual vacuum pumping structure according to claim 1 or 2 or 3 or 4 or 5 or 7, characterized in that: A deformation portion is disposed on the top of the pressing cover. The deformation portion is convexly disposed toward a side away from the center of the exhaust cavity. The deformation portion is suitable for being concavely deformed toward the center of the exhaust cavity.

9. The manual vacuum pumping structure according to claim 1, characterized in that: The valve seat is provided with a matching portion, the mounting groove is provided on the matching portion, and the matching portion is made of a hard material.

10. Sealing cover, characterized in that: It comprises a manual vacuuming structure as claimed in any one of claims 1 to 9.

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