A vacuum compression bag with a dual-purpose air extraction port
By designing the interface and assembly mechanisms, the problem of air leakage after vacuum compression bags are removed is solved, achieving higher sealing performance and reliability, and extending the service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANYUNGANG SHUANGNIU ALUMINUM PLASTIC PACKAGING CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-30
AI Technical Summary
Existing vacuum compression bags are prone to air leakage when the vacuuming equipment is pulled out after the vacuuming is completed, and the sealing components are easily worn, affecting the reliability of the device.
The design incorporates interface and assembly mechanisms, including components such as a hollow cover, sliding plate, hollow column, inclined groove, slider, threaded rod, and rubber ring. The automatic closure of the air extraction hole is achieved through the rotational cooperation of the slider and hollow column, and the sealing performance is improved through the cooperation of the threaded rod and rubber ring.
This improves the reliability of the vacuum compression bag's sealing after air extraction, prevents air leakage, and extends the service life of the device.
Smart Images

Figure CN224428471U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum compression bag technology, and in particular to a vacuum compression bag with a dual-purpose air extraction hole. Background Technology
[0002] Vacuum compression bags are storage products that use an air extraction tool to remove air from the bag and compress items to reduce their volume using external atmospheric pressure. They have the advantages of being moisture-proof, mildew-proof, insect-proof, and space-saving. They are often used to store quilts and clothes, effectively keeping items dry and clean and extending their shelf life. To facilitate the extraction of air from the vacuum compression bag, a vacuum compression bag with a dual-purpose extraction port is required.
[0003] Vacuum compression bags with dual-purpose air extraction ports refer to storage bags equipped with both manual and electric air extraction methods. Their air extraction port design is flexible, adapting to both manual operation with a press-type exhaust valve and rapid air extraction by connecting an electric air pump, thus balancing convenience and efficiency to meet compression and storage needs in different scenarios.
[0004] Currently available vacuum compression bags with dual-purpose air extraction ports consist of a bag body and a dual-purpose air extraction structure. During use, the bag body is manually squeezed to expel some air, thus initially reducing the volume of the compressed bag. To improve air extraction efficiency and sealing effect, existing technology uses a one-way valve structure in the air extraction channel for one-way air output. At the same time, to flexibly control the air extraction process, existing technology uses threads and ball valves to open and close the air extraction port. However, this method is difficult to maintain a tight seal during disassembly and assembly, and air leakage will occur after the air extraction device is pulled out. Moreover, after long-term use, the sealing components are prone to wear, which affects the sealing performance of the air extraction port and reduces the reliability of the device. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a vacuum compression bag with a dual-purpose air extraction hole, which aims to improve the problem of air leakage when the vacuum compression bag is pulled out of the air extraction device after the air extraction is completed in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a vacuum compression bag with a dual-purpose air extraction hole, comprising a compression bag, an interface mechanism provided on the front side of the compression bag for sealing, and an assembly mechanism provided on the inner side of the compression bag for disassembly and assembly.
[0007] The interface mechanism includes a hollow cover, which is located in the middle of the front side of the compression bag. Slide plates are fixedly connected to the left and right sides of the bottom of the hollow cover. A hollow plate is connected to the middle of the bottom end of the hollow cover. A hollow column is rotatably connected to the inner side of the hollow plate. Inclined grooves are formed on the left and right sides of the outer wall of the hollow column. A slider is slidably connected to the inner side of the inclined groove. A dual-purpose interface is slidably connected to the inner side of the slide plate. The dual-purpose interface is slidably connected to the slide plate. A reset component is provided inside the dual-purpose interface. A protective component is provided at the bottom outer side of the compression bag.
[0008] As a further description of the above technical solution:
[0009] The assembly mechanism includes a threaded rod rotatably connected to the inner center of the hollow cover. A threaded cover is threaded to the rear side of the threaded rod, and a perforated plate is fixedly connected to the rear side of the threaded cover. The perforated plate is fixedly connected to the compression bag. A rubber ring one is fixedly connected to the outer side of the perforated plate, and a rubber ring two is fixedly connected to the outer side of the hollow cover. A sealing component is provided on the outer side of the rubber ring two. A wear-resistant component is provided at the bottom of the compression bag, and a positioning component is provided at the top of the compression bag.
[0010] As a further description of the above technical solution:
[0011] The reset assembly includes a mounting ring, which is fixedly connected to the inner bottom of the dual-purpose interface. A spring tube is fixedly connected to the top of the mounting ring, and the top of the spring tube is rotatably connected to the hollow column.
[0012] As a further description of the above technical solution:
[0013] The protective component includes a protective cover, which is fixedly connected to the bottom outer side of the compression bag, and protective pads are fixedly connected to the front and rear outer sides of the protective cover.
[0014] As a further description of the above technical solution:
[0015] The assembly mechanism also includes a knob, which is rotatably connected to the center of the front side of the hollow cover, and the rear side of the knob passes through the hollow cover and is fixedly connected to the threaded rod.
[0016] As a further description of the above technical solution:
[0017] The sealing assembly includes a positioning ring, which is fixedly connected to the rear side of the second rubber ring. A groove is provided on the outer side of the first rubber ring, and the positioning ring engages with the groove.
[0018] As a further description of the above technical solution:
[0019] The wear-resistant component includes anti-collision corners, and multiple anti-collision corners are fixedly connected to the bottom perimeter of the compression bag, with a protective plate fixedly connected to the outer side of each anti-collision corner.
[0020] As a further description of the above technical solution:
[0021] The positioning component includes positioning blocks. Two positioning blocks are fixedly connected to the top left and right sides of the compression bag, respectively. Positioning holes are provided on the inner side of the positioning blocks.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, by connecting a manual or automatic air extraction device to a dual-purpose interface, pushing up the sliding block to slide along the inclined groove, and pushing the hollow column to rotate around the hollow plate when the dual-purpose interface moves along the sliding plate, the device can be started to extract air from the compressed bag when the holes on it intersect. After the end, pulling down the interface can close the leak, thereby improving the reliability of the device.
[0024] 2. In this utility model, by placing the corresponding model hollow cover in front of the hollow plate, with the threaded rod against the threaded cover, and rotating the threaded rod to tighten both, the hollow cover is fixed to the outside of the threaded cover for easy replacement. The holes in the hollow plate do not affect airflow. When closed, the rubber ring can improve the sealing performance after installation, prevent air intake or leakage, and thus improve the reliability of the device. Attached Figure Description
[0025] Figure 1 A perspective view of a vacuum compression bag with a dual-purpose air extraction port proposed in this utility model;
[0026] Figure 2 This is a front view of a vacuum compression bag with a dual-purpose air extraction port proposed in this utility model.
[0027] Figure 3 This is a partial structural diagram of a vacuum compression bag with a dual-purpose air extraction hole proposed in this utility model.
[0028] Figure 4 A partial structural exploded view of the interface mechanism of a vacuum compression bag with a dual-purpose air extraction hole proposed in this utility model.
[0029] Figure 5 This is a partial structural exploded view of the assembly mechanism of a vacuum compression bag with a dual-purpose air extraction hole proposed in this utility model.
[0030] Legend:
[0031] 1. Compression bag; 2. Interface mechanism; 21. Hollow cover; 22. Slide plate; 23. Hollow plate; 24. Hollow column; 25. Angled groove; 26. Slider; 27. Dual-purpose interface; 28. Reset assembly; 281. Mounting ring; 282. Bourdon tube; 29. Protective assembly; 291. Protective cover; 292. Protective pad; 3. Assembly mechanism; 31. Threaded rod; 32. Threaded cover; 33. Perforated plate; 34. Rubber ring one; 35. Rubber ring two; 36. Sealing assembly; 361. Positioning ring; 362. Slot; 37. Knob; 38. Wear-resistant assembly; 381. Anti-collision corner; 382. Protective plate; 39. Positioning assembly; 391. Positioning block; 392. Positioning hole. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figure 1 , Figure 2 and Figure 4 The present invention provides an embodiment of a vacuum compression bag with a dual-purpose air extraction hole, comprising a compression bag 1, an interface mechanism 2 provided on the front side of the compression bag 1 for sealing, and an assembly mechanism 3 provided on the inner side of the compression bag 1 for disassembly and assembly.
[0034] The interface mechanism 2 includes a hollow cover 21, which is located in the middle of the front side of the compression bag 1. The bottom left and right sides of the hollow cover 21 are fixedly connected to the sliding plate 22. The bottom middle of the hollow cover 21 is connected to a hollow plate 23. The inner side of the hollow plate 23 is rotatably connected to a hollow column 24, which can rotate along the hollow plate 23. The outer wall of the hollow column 24 is provided with inclined grooves 25 on both the left and right sides. The inner side of the inclined groove 25 is slidably connected to a slider 26. The inner side of the sliding plate 22 is slidably connected to a dual-purpose interface 27. The slider 26 is fixedly connected to the dual-purpose interface 27. The dual-purpose interface 27 can move along the sliding plate 22 and simultaneously drive the slider 26 to move along the inclined groove 25. The inner side of the dual-purpose interface 27 is provided with a reset component 28. The outer bottom of the compression bag 1 is provided with a protective component 29.
[0035] Specifically, by connecting the manual or automatic air extraction device to the dual-purpose interface 27, and then continuing to push upwards and cooperating with the sliding of the slider 26 in the inclined groove 25, the dual-purpose interface 27 can move along the slide plate 22 and push the hollow column 24 to rotate around the hollow plate 23. When the hollow plate 23 intersects with the hole of the hollow column 24, the device can be started to extract air from the compression bag 1. After the operation is completed, pulling down the interface can close the leak.
[0036] Reference Figure 2 , Figure 3 and Figure 5 The assembly mechanism 3 includes a threaded rod 31, which is rotatably connected to the inner middle of the hollow cover 21. A threaded cover 32 is threadedly connected to the rear side of the threaded rod 31. A perforated plate 33 is fixedly connected to the rear side of the threaded cover 32. The perforated plate 33 is fixedly connected to the compression bag 1. Rotating the threaded rod 31 tightens the threaded cover 32 on it, which can fix the hollow cover 21 and the perforated plate 33. A rubber ring 1 34 is fixedly connected to the outer side of the perforated plate 33, and a rubber ring 2 35 is fixedly connected to the outer side of the hollow cover 21. The sealing performance can be improved by the rubber ring 1 34 and the rubber ring 2 35. A sealing component 36 is provided on the outer side of the rubber ring 2 35. A wear-resistant component 38 is provided at the bottom of the compression bag 1, and a positioning component 39 is provided at the top of the compression bag 1.
[0037] Specifically, place the corresponding model hollow cover 21 on the front side of the hollow plate 23, so that the threaded rod 31 on the upper side abuts against the threaded cover 32, rotate the threaded rod 31 to tighten it with the threaded cover 32, thereby fixing the hollow cover 21 on the outside of the threaded cover 32 for easy replacement. The holes in the hollow plate 23 do not affect the airflow. When closed, the rubber ring can improve the sealing performance and prevent air intake or leakage.
[0038] Reference Figure 1 , Figure 2 and Figure 3 The reset assembly 28 includes a mounting ring 281, which is fixedly connected to the inner bottom of the dual-purpose interface 27. A spring tube 282 is fixedly connected to the top of the mounting ring 281. The top of the spring tube 282 is rotatably connected to the hollow column 24. The hollow column 24 can be pushed to reset by the thrust of the spring tube 282 along the mounting ring 281. The protective assembly 29 includes a protective cover 291, which is fixedly connected to the outer bottom of the compression bag 1. Pads 292 are fixedly connected to the front and rear sides of the outer side of the protective cover 291. The protection of the pads 292 on the protective cover 291 can reduce the damage to the compression bag 1 from collisions.
[0039] Specifically, the upward thrust of the spring tube 282 along the mounting ring 281 allows the hollow column 24 to return to its original position when not in use, thus maintaining the device's airtightness. The protective cover 291 and its pad 292 enhance the device's protective effect and reduce damage from impacts.
[0040] Reference Figure 1 , Figure 2 and Figure 5 The assembly mechanism 3 also includes a knob 37, which is rotatably connected to the middle of the front side of the hollow cover 21. The rear side of the knob 37 passes through the hollow cover 21 and is fixedly connected to the threaded rod 31. Rotating the knob 37 will simultaneously drive the threaded rod 31 to rotate. The sealing assembly 36 includes a positioning ring 361, which is fixedly connected to the rear side of the second rubber ring 35. A groove 362 is provided on the outer side of the first rubber ring 34. The positioning ring 361 engages with the groove 362. The engagement of the positioning ring 361 with the groove 362 can improve the sealing performance when the second rubber ring 35 and the first rubber ring 34 are closed.
[0041] Specifically, rotating the knob 37 can synchronously drive the threaded rod 31 to rotate. When the second rubber ring 35 and the first rubber ring 34 are closed, the engagement of the positioning ring 361 and the slot 362 on the second rubber ring 35 and the first rubber ring 34 can improve the sealing performance when they are closed, and further prevent air leakage.
[0042] Reference Figure 1 , Figure 2 and Figure 3 The wear-resistant component 38 includes anti-collision corners 381, and multiple anti-collision corners 381 are fixedly connected to the bottom perimeter of the compression bag 1. A protective plate 382 is fixedly connected to the outer side of the anti-collision corners 381. The anti-collision corners 381 and the protective plate 382 can reduce the damage to the device during collision and friction. The positioning component 39 includes positioning blocks 391, and two positioning blocks 391 are fixedly connected to the top left and right sides of the compression bag 1. A positioning hole 392 is opened on the inner side of the positioning block 391, which facilitates the hooking and storage of the compression bag 1.
[0043] Specifically, the anti-collision corner 381 can reduce the damage to the compression bag 1 when it is hit by a collision, while the protective plate 382 on it can reduce the friction of the compression bag 1 when it is handled and picked up, and the positioning block 391 and the positioning hole 392 on it can facilitate the gripping and handling of the compression bag 1.
[0044] Working principle: Before using the device, first connect the manual or automatic air extraction device to the dual-purpose interface 27, and then continue to push the sliding block 26 and the inclined groove 25 upward. When the dual-purpose interface 27 moves along the sliding plate 22, it will push the hollow column 24 to rotate along the hollow plate 23. When the hollow plate 23 and the hole on the hollow column 24 intersect, start the device connected to the dual-purpose interface 27 to facilitate air extraction from the compression bag 1. After the operation is completed, pull down the dual-purpose interface 27 to close the leak.
[0045] Furthermore, by placing the corresponding model hollow cover 21 on the front side of the hollow plate 23 and abutting the threaded rod 31 on it against the threaded cover 32, rotating the threaded rod 31 can tighten it with the threaded cover 32, fixing the hollow cover 21 to the outside of the threaded cover 32 for easy replacement. At the same time, the holes on the hollow plate 23 can prevent it from affecting the airflow. When closed, it can cooperate with the closing of the rubber ring 2 35 and the rubber ring 1 34 to improve the sealing performance after installation and prevent air intake or leakage.
[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A vacuum compression bag with dual purpose air extraction hole comprising a compression bag (1), characterised in that: The compression bag (1) is provided with an interface mechanism (2) on the front side, which is used for sealing. The compression bag (1) is provided with an assembly mechanism (3) on the inner side, which is used for disassembly and assembly. The interface mechanism (2) includes a hollow cover (21), which is located in the middle of the front side of the compression bag (1). The bottom left and right sides of the hollow cover (21) are fixedly connected to sliding plates (22). The bottom middle of the hollow cover (21) is connected to a hollow plate (23). The inner side of the hollow plate (23) is rotatably connected to a hollow column (24). The outer wall of the hollow column (24) is provided with inclined grooves (25) on both the left and right sides. The inner side of the inclined grooves (25) is slidably connected to a slider (26). The inner side of the sliding plate (22) is slidably connected to a dual-purpose interface (27). The slider (26) is fixedly connected to the dual-purpose interface (27). The inner side of the dual-purpose interface (27) is provided with a reset component (28). The outer bottom of the compression bag (1) is provided with a protective component (29).
2. A vacuum compression bag with a dual-purpose extraction port according to claim 1, characterized in that: The assembly mechanism (3) includes a threaded rod (31), which is rotatably connected to the inner middle of the hollow cover (21). A threaded cover (32) is threadedly connected to the rear side of the threaded rod (31). A perforated plate (33) is fixedly connected to the rear side of the threaded cover (32). The perforated plate (33) is fixedly connected to the compression bag (1). A rubber ring one (34) is fixedly connected to the outer side of the perforated plate (33). A rubber ring two (35) is fixedly connected to the outer side of the hollow cover (21). A sealing component (36) is provided on the outer side of the rubber ring two (35). A wear-resistant component (38) is provided at the bottom of the compression bag (1). A positioning component (39) is provided at the top of the compression bag (1).
3. A vacuum compression bag with a dual-purpose extraction port according to claim 1, characterized in that: The reset assembly (28) includes a mounting ring (281) which is fixedly connected to the inner bottom of the dual-purpose interface (27). A spring tube (282) is fixedly connected to the top of the mounting ring (281), and the top of the spring tube (282) is rotatably connected to the hollow column (24).
4. A vacuum compression bag with a dual-purpose extraction port according to claim 1, characterized in that: The protective component (29) includes a cover (291) which is fixedly connected to the bottom of the outer side of the compression bag (1), and pads (292) are fixedly connected to the front and rear sides of the outer side of the cover (291).
5. A vacuum compression bag with a dual-purpose extraction port according to claim 1, characterized in that: The assembly mechanism (3) also includes a knob (37), which is rotatably connected to the front middle of the hollow cover (21), and the rear side of the knob (37) passes through the hollow cover (21) and is fixedly connected to the threaded rod (31).
6. A vacuum compression bag with a dual-purpose extraction port according to claim 2, characterized in that: The sealing assembly (36) includes a positioning ring (361), which is fixedly connected to the rear side of the second rubber ring (35). A groove (362) is provided on the outer side of the first rubber ring (34), and the positioning ring (361) engages with the groove (362).
7. A vacuum compression bag with a dual-purpose extraction port according to claim 2, characterized in that: The wear-resistant component (38) includes anti-collision corners (381), and a plurality of anti-collision corners (381) are fixedly connected to the bottom perimeter of the compression bag (1), and a protective plate (382) is fixedly connected to the outer side of the anti-collision corners (381).
8. A vacuum compression bag with a dual-purpose extraction port according to claim 2, Its features are: The positioning component (39) includes a positioning block (391), the positioning block (391), The two positioning blocks (391) are respectively fixedly connected to the top left and right sides of the compression bag (1). The positioning block (391) has a positioning hole (392) on its inner side.