Vacuum type waterproof bag

Abstract

The utility model belongs to the technical field of waterproof bags, and discloses a vacuum type waterproof bag which comprises a sealing bag provided with a sealing strip used for sealing the sealing bag, and an extraction opening is formed in a bag body of the sealing bag. The air extracting device is fixed to the sealing bag in a sealed mode and provided with an air inlet and an air outlet, the air inlet is communicated with the air extracting opening, and the air outlet is covered with a first one-way air inlet device; the air channel is configured to be communicated with the air inlet and the air outlet; the air exhaust chamber is arranged between the air channel and the air inlet, and a second one-way air inlet device is arranged in the air exhaust chamber to cover the air inlet; gaps are formed between the first one-way air inlet device and the air exhaust device and between the second one-way air inlet device and the air exhaust device, and when the air exhaust cavity shrinks, exhausted air is exhausted along the air channel. When the air extraction chamber is reset, negative pressure is generated to extract air from the sealing bag through the air inlet and the air extraction opening; the overall material demand is reduced, the number of assemblies is reduced, the production efficiency of products is improved, and the product cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to waterproof bag technical field, especially to a vacuum waterproof bag. BACKGROUND

[0002] Mobile phone waterproof bag is a common waterproof protection product, usually made of transparent plastic or PVC material, with waterproof, dustproof and sandproof functions, suitable for use in humid or water environment, such as swimming, diving, beach, water park and other scenes. Its main function is to prevent water from penetrating into the mobile phone through the sealing structure, while allowing users to directly operate the mobile phone touch screen, take pictures or record videos in the bag. In order to enhance the protection effect and improve the use experience, some waterproof bags are further designed to have air extraction function, which extracts the excess air in the bag to make the bag body fit the surface of the device, improving the touch sensitivity and shooting clarity.

[0003] The existing air extraction type waterproof bag generally adopts a one-way valve structure to control the air exhaust direction and prevent external air or moisture from flowing into the sealed bag. However, such structure usually involves the combination of multiple components, such as springs, valve pieces, limit pieces, etc., which not only has complex assembly process and high precision requirements, but also is prone to problems such as valve body failure, jamming or poor sealing, and such complex one-way valve structure significantly increases the manufacturing cost and mold processing difficulty of the product, with low production efficiency due to the large number of components and dispersed structure; in addition, most traditional one-way valve pieces are rigid structures, which are prone to deformation or wear after long-term use or repeated extrusion, affecting the overall sealing effect and air extraction efficiency.

[0004] Therefore, a vacuum waterproof bag is proposed to solve the above problems. INVENTION CONTENTS

[0005] The main purpose of the utility model is to provide a vacuum waterproof bag, aiming to solve the problems of complex structure, high cost and low production efficiency of the existing waterproof bag.

[0006] In order to achieve the above utility model purpose, the utility model provides a vacuum waterproof bag, comprising:

[0007] A sealing bag is provided with a sealing strip for sealing the sealing bag, and the bag body of the sealing bag is provided with an air extraction port;

[0008] An air extraction device is sealed and fixed on the sealing bag, and is provided with an air inlet and an air outlet, the air inlet is communicated with the air extraction port, and the air outlet is covered with a first one-way air inlet device;

[0009] An air duct is configured to communicate the air inlet and the air outlet;

[0010] An air extraction chamber is arranged between the air passage and the air inlet, and a second one-way air inlet device is arranged on the air extraction chamber to cover the air inlet;

[0011] The first one-way air inlet device and the second one-way air inlet device are both arranged with a gap between the air extraction device, and when the air extraction chamber is contracted, air extraction is discharged along the air passage;

[0012] When the air extraction chamber is reset, negative pressure is generated to extract air from the sealed bag through the air inlet and the air outlet.

[0013] Further, the cross-sectional area of the air passage gradually increases along the first direction;

[0014] The air passage side wall can be elastically deformed and configured as:

[0015] When the air extraction chamber is reset to form negative pressure, the air passage side walls are close to each other to form a seal;

[0016] When the air extraction chamber is contracted to form high pressure, the air passage side walls are expanded to supply air flow.

[0017] Further, the first one-way air inlet device is a diaphragm, the diaphragm covers the air outlet, the diaphragm and the air extraction device form a first gap, and the air outlet is connected with the first gap;

[0018] When there is air flow in the air passage, the air flow lifts the diaphragm and overflows from the first gap to the outside.

[0019] Further, the diaphragm cover is provided with a first waterproof member, the first waterproof member is provided with a first air hole, the diaphragm and the first waterproof member form a first air flow channel, the first air flow channel is in communication with the first gap, and the first air flow channel is in communication with the first air hole.

[0020] Further, the first waterproof member is a micro-elastic waterproof material.

[0021] Further, the second one-way air inlet device is a diaphragm, the diaphragm covers the air inlet, and the diaphragm and the inner wall of the air extraction chamber form a second gap;

[0022] When the air extraction chamber is contracted, the diaphragm covers the air inlet to form a seal;

[0023] When the air extraction chamber is reset, the diaphragm is separated from the air inlet under the action of negative pressure, and air flow passes through the second gap.

[0024] Further, the membrane cover is provided with a second waterproof part, the second waterproof part is provided with a second air hole, a second air flow channel is arranged between the membrane and the second waterproof part, the second air flow channel is communicated with the second gap, and the second air hole is communicated with the second air flow channel.

[0025] Further, the second waterproof part is a micro-elastic waterproof material.

[0026] Further, the air extraction chamber is provided with a reset spring, and the reset spring is used for driving the air extraction chamber to reset.

[0027] Further, the sealing sleeve is arranged outside the air extraction device, and the sealing sleeve wraps the air extraction device and the bag opening of the sealing bag.

[0028] Beneficial effects:

[0029] The utility model discloses a vacuum type waterproof bag, which comprises a sealing bag provided with a sealing strip for sealing the sealing bag, an air extraction opening arranged on the bag body of the sealing bag, an air extraction device sealingly fixed on the sealing bag and provided with an air inlet and an air outlet, the air inlet being communicated with the air extraction opening, the air outlet being covered with a first one-way air inlet device, an air duct configured to communicate the air inlet and the air outlet, an air extraction chamber arranged between the air duct and the air inlet and provided with a second one-way air inlet device covering the air inlet, wherein the first one-way air inlet device and the second one-way air inlet device are both provided with a gap between the air extraction device, when the air extraction chamber is contracted, the air extraction is discharged along the air duct, when the air extraction chamber resets, a negative pressure is generated to extract air from the sealing bag through the air inlet and the air extraction opening, the design idea of the embodiment is to simplify the complex structure in the original technology through structural optimization, especially in the configuration of the air extraction path, the internal structure of the air extraction device is adjusted to a combined form composed of the air inlet, the air outlet, the air duct and the air extraction chamber, the air inlet device is arranged between the air inlet and the air extraction chamber and at the air outlet respectively, and a gap is reserved between the air inlet device and the air extraction device, so that the air flow can be smoothly completed in the compression and reset stages, without introducing complex internal flow control components, thereby realizing the air extraction function with low cost and high efficiency, the structural design of the scheme is more simple, part of the complex components in the original scheme is omitted, the overall material requirement is reduced, the number of components is reduced, the production efficiency of the product is improved, and the product cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the overall structure schematic diagram of the vacuum type waterproof bag of an embodiment of the utility model;

[0031] Figure 2 is the partial structure schematic diagram of the vacuum type waterproof bag of an embodiment of the utility model;

[0032] Figure 3is a schematic diagram of the air extraction device of the vacuum waterproof bag of one embodiment of the utility model;

[0033] Figure 4 is a schematic diagram of the air inlet of the vacuum waterproof bag of one embodiment of the utility model;

[0034] Figure 5 is a sectional view of the air extraction device of the vacuum waterproof bag of one embodiment of the utility model;

[0035] Figure 6 is a first local enlarged view of the vacuum waterproof bag of one embodiment of the utility model;

[0036] Figure 7 is a second local enlarged view of the vacuum waterproof bag of one embodiment of the utility model;

[0037] Among them:

[0038] 100, sealed bag; 110, sealing strip; 120, air extraction port;

[0039] 200, air extraction device; 210, air inlet; 220, air outlet; 230, air passage; 240, air extraction chamber;

[0040] 300, first one-way air inlet device; 310, first gap;

[0041] 400, first waterproof part; 410, first air flow channel; 420, first air hole;

[0042] 500, second one-way air inlet device; 510, second gap;

[0043] 600, second waterproof part; 610, second air flow channel; 620, second air hole;

[0044] 700, reset spring;

[0045] 800, sealing sleeve;

[0046] The utility model discloses the realization, functional characteristics and advantages will be further explained with reference to the drawings in combination with the embodiment. DETAILED DESCRIPTION

[0047] It should be understood that the specific embodiments described herein merely serve to explain the utility model and do not serve to limit the utility model.

[0048] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relation based on the orientation or positional relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0049] In the description of the utility model, it should be explained that, unless otherwise specifically defined and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0050] In the utility model, unless otherwise specifically defined and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0051] Referring to Figures 1 to 7 The utility model relates to a kind of waterproof bag of vacuum type, comprising:

[0052] Sealing bag 100 is equipped with sealing strip 110, for sealing sealing bag 100, the bag body of the sealing bag 100 is equipped with suction port 120;

[0053] The air extraction device 200 is fixedly sealed to the sealed bag 100, and is provided with an air inlet 210 and an air outlet 220, the air inlet 210 is communicated with the air extraction port 120, and the air outlet 220 is covered with a first one-way air inlet device 300;

[0054] An air passage 230 is configured to communicate the air inlet 210 and the air outlet 220;

[0055] An air extraction chamber 240 is arranged between the air passage 230 and the air inlet 210, and the air extraction chamber 240 is provided with a second one-way air inlet device 500 covering the air inlet 210;

[0056] The first one-way air inlet device 300 and the second one-way air inlet device 500 are both provided with gaps with the air extraction device 200, when the air extraction chamber 240 is contracted, air extraction is discharged along the air passage 230;

[0057] When the air extraction chamber 240 is reset, negative pressure is generated to extract air from the sealed bag 100 through the air inlet 210 and the air extraction port 120.

[0058] The design idea of this embodiment is to simplify the complex structure in the prior art through structural optimization, especially in the configuration of the air extraction path, the internal structure of the air extraction device 200 is adjusted to a combined form composed of the air inlet 210, the air outlet 220, the air passage 230 and the air extraction chamber 240, and the air inlet device is arranged between the air inlet 210 and the air extraction chamber 240 and at the air outlet 220 respectively, and gaps are reserved between the air inlet device and the air extraction device 200, so that the air flow can be smoothly completed in the compression and reset stages, without introducing complex internal flow control components, thereby realizing the air extraction function with low cost and high efficiency.

[0059] In terms of working principle, when the suction chamber 240 is contracted, the air in the chamber is discharged through the air outlet 220 in the direction of the air passage 230; when the suction chamber 240 is reset, a negative pressure is generated in the chamber, and the air in the sealed bag 100 is sucked into the chamber through the air inlet 210 and the air outlet 120 on the sealed bag 100, so that the air in the sealed bag 100 is sucked into the chamber. Due to the structural cooperation of the air inlet device and the air outlet device and the gap set between the air outlet device 200, the air always flows effectively during the entire air exhaust process, and the compression exhaust and the reset air exhaust are alternately performed to effectively exhaust the air in the bag body; when the air is exhausted (i.e., the compression chamber), when the suction chamber 240 is pressed by an external force, the air in the chamber is forced to flow to the air outlet 220 through the air passage 230, and at this time, since the first one-way air inlet device 300 is arranged on the air outlet 220, it only allows one-way air exhaust, which ensures that the air in the chamber is effectively exhausted and does not backflow; when resetting (forming a negative pressure), after the external force is released, the suction chamber 240 automatically rebounds, a negative pressure is formed in the chamber, the second one-way air inlet device 500 is opened under the action of the negative pressure, and the air in the sealed bag 100 is sucked into the chamber to achieve air extraction, and since the first one-way air inlet device 300 on the air outlet 220 is closed in this state, the air cannot backflow from the air outlet 220.

[0060] The sealed bag 100 is made of a flexible transparent material such as PVC or TPU, has high strength and excellent waterproof performance, and the bag opening of the sealed bag 100 is provided with a sealing strip 110 for sealing the bag opening after the device is placed; the user places the mobile phone or other device into the sealed bag 100, adjusts it to a suitable position, and then seals the bag opening by the sealing strip 110. The user starts the air exhaust device 200 by extrusion, manual air exhaust or other ways, and the air passage 230 in the air exhaust device 200 exhausts the air from the bag body through the air inlet 210 and the air outlet 120. The first one-way air inlet device 300 and the second one-way air inlet device 500 ensure that the air in the bag is exhausted in one direction, and prevent external air from backflowing into the bag body. When the air in the bag body is exhausted, the bag body is tightly attached to the surface of the device while maintaining the stable sealing state of the sealing strip 110, and the packaging of the vacuum waterproof bag is completed.

[0061] The air exhaust chamber 240 is located in the core area of the air exhaust device 200, one end of which is connected with the air outlet 120 of the sealed bag 100 through the air inlet 210, and the other end is connected with the outside through the air passage 230 and the air outlet 220. The air exhaust chamber 240 is made of a flexible material such as silica gel or elastic plastic, has good compressibility and durability. Through repeated contraction and reset actions of the user, the air in the sealed bag 100 is gradually exhausted until the bag body is attached to the surface of the device.

[0062] The flexible design of the extraction chamber 240 allows air to be quickly and efficiently expelled from the sealed bag 100. Combined with the design of the first one-way air intake device 300 and the second one-way air intake device 500, it prevents air backflow, achieving one-way control throughout the entire process. The extraction operation is simple and intuitive, suitable for manual operation. The negative pressure environment not only completely empties the air from the bag but also improves the fit between the bag and the sealing strip 110, thereby enhancing the bag's waterproof performance. Under negative pressure, the bag fits tightly against the device surface, significantly improving touchscreen sensitivity and providing an operating experience close to that of a bare device. In underwater or wet environments, the touchscreen operation is smooth and lag-free, providing a better user experience. The simple design of the extraction chamber 240 allows for flexible adaptation to sealed bags 100 of different sizes and shapes, meeting the waterproof requirements of various devices. It is particularly suitable for dynamic scenarios such as water parks, diving, and outdoor shooting, improving equipment safety and ease of operation. The design of the 240 extraction chamber and the one-way air intake device avoids the complex mechanical structures such as the one-way valve in the original design, and achieves stable and efficient extraction function through simple physical principles; it omits some complex components of existing technologies, reduces the overall material requirements, and significantly reduces product costs; secondly, the reduction in the number of components and the more intuitive assembly of the structure improve the production efficiency of the product and make it more suitable for mass production; it is suitable for a variety of high-end user groups and has a broad market prospect.

[0063] Based on the above embodiments, the cross-sectional area of ​​the airway 230 gradually increases along the first direction;

[0064] The sidewall of the airway 230 is configured to be elastically deformable as follows:

[0065] When the suction chamber 240 is reset and a negative pressure is formed, the side walls of the air passage 230 come together to form a seal;

[0066] When the suction chamber 240 contracts to form high pressure, the sidewall of the air passage 230 expands to allow airflow to pass through.

[0067] In this embodiment, the cross-sectional area of ​​the air passage 230 gradually increases along the first direction, and the sidewall of the air passage 230 has elastic deformation capability. The core of this design is to utilize the automatic deformation behavior of the air passage 230 structure under different air pressure conditions to achieve passive adjustment of the airflow interruption state, simplifying the structure while improving the pumping efficiency and airtightness.

[0068] Specifically, when the suction chamber 240 resets to form a negative pressure state, the internal pressure of the airway 230 drops sharply. Under the action of external pressure, the sidewalls of the airway 230 move closer together and tend to close or contact each other, forming a closed state to prevent external gas backflow from affecting the formation of negative pressure during the suction process. When the suction chamber 240 contracts to form a high pressure state, the airflow in the airway 230 pushes the sidewalls of the airway 230 to expand outward, forming an open channel, allowing the air in the bag to flow smoothly through the airway 230 to the outlet 220, achieving effective exhaust. The design of the airway 230 with its cross-sectional area gradually increasing along the first direction helps to reduce the flow resistance during the exhaust process, guide the airflow direction, and enhance the exhaust capacity and stability of the suction device 200. In this embodiment, the deformable airway 230 structure is used to achieve airflow control during the suction process by utilizing the elastic response of the material itself. There is no need to set up mechanical one-way valves, sliding components, or other structures, which effectively reduces the number of parts, simplifies the overall structure, significantly reduces material usage and processing steps, and improves product production efficiency.

[0069] Furthermore, the first one-way air intake device 300 is a diaphragm, the diaphragm covers the air outlet 220, the diaphragm and the air extraction device 200 form a first gap 310, and the air outlet 220 is connected to the first gap 310.

[0070] When airflow is discharged from the airway 230, the airflow pushes up the diaphragm and overflows from the first gap 310 to the outside.

[0071] The membrane cover is provided with a first waterproof component 400, the first waterproof component 400 is provided with a first air hole 420, a first airflow channel 410 is formed between the membrane and the first waterproof component 400, the first airflow channel 410 is connected to the first gap 310, and the first airflow channel 410 is connected to the first air hole 420.

[0072] The first waterproof component 400 is made of a slightly elastic waterproof material.

[0073] In this embodiment, the first one-way air intake device 300 is a diaphragm, and a first waterproof component 400 is provided on the outside of the diaphragm. In this embodiment, the diaphragm is in a regular rectangular shape, and the upper and lower sides of the diaphragm are bonded and fixed to the air extraction device 200, while the left and right sides have multiple gaps with the air extraction device 200. The waterproof component is a slightly elastic waterproof fabric. The first waterproof component 400 covers the diaphragm, avoiding the first gap 310, so that the air outlet 220 communicates with the first gap 310, the first gap 310 communicates with the first airflow channel 410, and the first airflow channel 410 communicates with the first air hole 420 on the diaphragm, allowing the airflow to be smoothly discharged to the outside. In actual operation...

[0074] When gas is discharged from the air passage 230, it can push the diaphragm to partially lift, allowing the gas to be discharged to the outside through the first gap 310. When the suction device 200 is stationary or under negative pressure, the diaphragm is pressed against the air outlet 220 by air pressure, sealing the exhaust channel and effectively suppressing backflow. At the same time, a first waterproof component 400 is added to the outside of the diaphragm. This waterproof component is made of a slightly elastic waterproof material and has a first pore 420 on its surface, which allows the discharged gas to continue to flow through the pores to be discharged to the outside after overflowing through the diaphragm. A first airflow channel 410 is pre-formed between the diaphragm and the waterproof component to ensure that the gas can be smoothly discharged along the set path when the diaphragm is open. The application of the slightly elastic material can not only play a waterproof barrier role, but also achieve effective opening and closing protection in conjunction with the movement of the diaphragm.

[0075] The working principle of this embodiment is as follows: When the suction chamber 240 is in a contracted state and airflow is formed and discharged from the air passage 230, the airflow pushes up the diaphragm covering it from the air outlet 220. The gas escapes through the first gap 310 between the diaphragm and the device, and is guided to the first air hole 420 through the first airflow channel 410 and discharged to the outside. When the suction chamber 240 is reset to form a negative pressure or is stationary, the diaphragm automatically adheres to the outside of the air outlet 220, cutting off the airflow path. During this process, the setting of the first waterproof component 400 not only provides an additional physical protective layer, but also controls the air outlet path through the air hole, effectively preventing moisture from entering the suction device 200 and improving the overall sealing and protective performance of the waterproof bag. The design of this embodiment eliminates the design requirements of complex components such as elastic components and limiting components that are required in traditional structures by using material flexibility and pre-set gaps in the structure. This effectively reduces the number of components, reduces material and mold costs, and improves assembly efficiency. Meanwhile, while achieving unidirectional air exhaust, this structure also has excellent external barrier capabilities, preventing moisture intrusion or interference from external particles. It is suitable for various harsh operating environments such as outdoor and water-related applications, offering higher safety and reliability, and further enhancing the product's practicality and market competitiveness.

[0076] Furthermore, the second one-way air intake device 500 is a diaphragm, which covers the air intake 210, and a second gap 510 is formed between the diaphragm and the inner wall of the air extraction chamber 240.

[0077] When the air extraction chamber 240 contracts, the diaphragm covers the air inlet 210 to form a seal;

[0078] When the suction chamber 240 is reset, the diaphragm separates from the air inlet 210 under the action of negative pressure, and the airflow passes through the second gap 510;

[0079] The membrane cover is provided with a second waterproof component 600, the second waterproof component 600 is provided with a second air hole 620, a second airflow channel 610 is provided between the membrane and the second waterproof component 600, the second airflow channel 610 communicates with the second gap 510, and the second air hole 620 communicates with the second airflow channel 610.

[0080] The second waterproof component 600 is made of a slightly elastic waterproof material.

[0081] In this embodiment, the second one-way air intake device 500 is a diaphragm that covers the air intake port 210 and forms a second gap 510 with the inner wall of the air extraction chamber 240. At the same time, a second waterproof component 600 is added outside the diaphragm. The second waterproof component 600 is made of a micro-elastic waterproof material and has a second air hole 620, forming a second airflow channel 610 between it and the diaphragm, thereby guiding the air intake path and preventing backflow control.

[0082] In this embodiment, a flexible diaphragm covers the air inlet 210. When the user operates the suction chamber 240 to compress, the air pressure inside the chamber increases, and the diaphragm is pressed against the surface of the air inlet 210, sealing the channel and preventing air backflow or accidental entry. When the user releases the external force, the suction chamber 240 resets to form a negative pressure. Driven by the pressure difference, the diaphragm automatically separates from the air inlet 210, and air enters the suction chamber 240 along the second gap 510, the second airflow channel 610, and the second air hole 620, thereby extracting air from inside the sealed bag 100. The entire process requires no external drive structure or complex components; stable unidirectional air intake function can be achieved solely through changes in air pressure and the elastic deformation response of the structural material itself.

[0083] Furthermore, a return spring 700 is provided inside the air extraction chamber 240, which is used to drive the air extraction chamber 240 to reset.

[0084] In this embodiment, a return spring 700 is installed inside the suction chamber 240. The return spring 700 is used to drive the suction chamber 240 to reset. The purpose of installing the return spring 700 inside the suction chamber 240 is to achieve rapid rebound and reset of the suction chamber 240 after each compression, thereby creating a negative pressure in the chamber and continuously extracting air from the sealed bag 100. This design requires no external power support, has a simple and efficient structure, and provides a reliable reset mechanism for the manual operation of the suction device 200. Specifically, when the user applies external force to the suction chamber 240, the air in the chamber is discharged to the air outlet 220 through the air passage 230, while compressing the return spring 700 and storing elastic potential energy. After the external force is released, the return spring 700 uses elastic potential energy to drive the chamber to return to its original state. During the chamber reset process, a negative pressure is formed, thereby drawing air from the sealed bag 100 and completing one cycle of the suction process. By repeatedly compressing and resetting, the user utilizes the elastic recovery capability of the return spring 700 to continuously extract air from the sealed bag 100 until all air is expelled. The addition of the return spring 700 allows the suction chamber 240 to automatically reset after each compression, eliminating the need for the user to manually pull the chamber back to its original position, making operation simpler and more efficient. The spring's reset process generates a stable negative pressure, ensuring the chamber can continuously draw air from the sealed bag 100, resulting in higher exhaust efficiency. The spring's stable mechanical properties allow it to maintain the chamber's reset function for an extended period, significantly extending the service life of the suction device 200. Through the rapid recovery capability of the return spring 700, the user can perform continuous suction operations at a higher frequency, significantly shortening the exhaust time.

[0085] The vacuum waterproof bag also includes a sealing sleeve 800, which is disposed outside the air extraction device 200 and covers the air extraction device 200 and the opening of the sealed bag 100.

[0086] In this embodiment, a sealing sleeve 800 is also included. The sealing sleeve 800 is fitted over the vacuum device 200, covering both the vacuum device 200 and the opening of the sealed bag 100. A sealing sleeve 800 is designed to further enhance the sealing connection between the vacuum device 200 and the opening of the sealed bag 100. The sealing sleeve 800 wraps around the vacuum device 200 and covers the opening of the sealed bag 100, providing additional sealing protection. This design not only enhances the waterproof performance of the device but also improves the fixing strength between the device and the bag, ensuring the stability and safety of the vacuuming process. By covering both the bag opening and the vacuum device 200, the sealing sleeve 800 achieves double sealing protection, significantly improving the overall waterproof performance of the device.

[0087] In this embodiment, the sealing sleeve 800 is made of an elastic material. The elastic material of the sealing sleeve 800 allows it to fit tightly against the bag body and the vacuum device 200 through its flexibility and resilience, forming a reliable sealing structure. The design of the elastic material can adapt to changes in the shape of the bag body and the vacuum device 200, while also possessing good durability and waterproof performance. This material selection simplifies the installation and disassembly process of the device, while enhancing the environmental adaptability of the sealing sleeve 800 and the user experience.

[0088] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A vacuum-sealed waterproof bag, characterized in that, include: A sealed bag (100) is provided with a sealing strip (110) for sealing the sealed bag (100), and the sealed bag (100) is provided with an air extraction port (120) on the bag body; An air extraction device (200) is sealed and fixed on the sealed bag (100) and is provided with an air inlet (210) and an air outlet (220). The air inlet (210) is connected to the air extraction port (120), and the air outlet (220) is covered with a first one-way air inlet device (300). An air passage (230) is configured to connect the air inlet (210) and the air outlet (220); An air extraction chamber (240) is provided between the air passage (230) and the air inlet (210), and a second one-way air inlet device (500) is provided in the air extraction chamber (240) to cover the air inlet (210); The first one-way air intake device (300) and the second one-way air intake device (500) are provided with gaps between themselves and the air extraction device (200). When the air extraction chamber (240) contracts, the extracted air is discharged along the air passage (230). When the air extraction chamber (240) is reset, a negative pressure is generated to draw air from the sealed bag (100) through the air inlet (210) and the air extraction port (120).

2. The vacuum waterproof bag according to claim 1, characterized in that, The cross-sectional area of ​​the airway (230) gradually increases along the first direction; The sidewall of the airway (230) is configured to be elastically deformable as follows: When the air extraction chamber (240) is reset to form a negative pressure, the side walls of the air passage (230) come together to form a seal; When the suction chamber (240) contracts to form high pressure, the sidewall of the air passage (230) expands to allow airflow to pass through.

3. The vacuum waterproof bag according to claim 1, characterized in that, The first one-way air intake device (300) is a diaphragm, which covers the air outlet (220). The diaphragm and the air extraction device (200) form a first gap (310), and the air outlet (220) is connected to the first gap (310). When airflow is discharged from the airway (230), the airflow pushes up the diaphragm and overflows from the first gap (310) to the outside.

4. The vacuum waterproof bag according to claim 3, characterized in that, The membrane cover is provided with a first waterproof component (400), the first waterproof component (400) is provided with a first air hole (420), a first airflow channel (410) is formed between the membrane and the first waterproof component (400), the first airflow channel (410) is connected to the first gap (310), and the first airflow channel (410) is connected to the first air hole (420).

5. The vacuum waterproof bag according to claim 4, characterized in that, The first waterproof component (400) is made of a slightly elastic waterproof material.

6. The vacuum waterproof bag according to claim 1, characterized in that, The second one-way air intake device (500) is a diaphragm that covers the air inlet (210) and forms a second gap (510) with the inner wall of the air extraction chamber (240). When the suction chamber (240) contracts, the diaphragm covers the air inlet (210) to form a seal; When the suction chamber (240) is reset, the diaphragm separates from the air inlet (210) under the action of negative pressure, and the airflow passes through the second gap (510).

7. The vacuum waterproof bag according to claim 6, characterized in that, The membrane cover is provided with a second waterproof component (600), the second waterproof component (600) is provided with a second air hole (620), a second airflow channel (610) is provided between the membrane and the second waterproof component (600), the second airflow channel (610) is connected to the second gap (510), and the second air hole (620) is connected to the second airflow channel (610).

8. The vacuum waterproof bag according to claim 7, characterized in that, The second waterproof component (600) is made of a slightly elastic waterproof material.

9. The vacuum waterproof bag according to claim 1, characterized in that, The air extraction chamber (240) is provided with a return spring (700), which is used to drive the air extraction chamber (240) to return to its original position.

10. The vacuum waterproof bag according to claim 1, characterized in that, It also includes a sealing sleeve (800), which is located outside the air extraction device (200) and covers the opening of the air extraction device (200) and the sealed bag (100).

Images