TWI622529B - Sealed bag and using method thereof - Google Patents

Abstract

A sealed bag can effectively isolate the inside of the sealed bag from the outside. The sealed bag includes a bag body, and a first clip chain, a second clip chain, and a vent device provided on the bag body; the bag body has a receiving space and an opening; and the first clip chain is used for The second clip chain is used to separate the containing space into a first space and a second space, wherein the first space is located between the first clip chain and the second space. Between the chains; the venting device is arranged between the first and second chains to guide the gas in the first space to the outside, so that the first space approaches The vacuum causes the force exerted by the atmosphere outside the bag body to be greater than the force applied to the bag body to expand outwards due to gas expansion in the second space, so that the second clip chain is always maintained in a closed state.

Description

Sealed bag and using method thereof

The invention relates to a sealing mechanism; in particular, it relates to a sealed bag and a method for using the same.

According to the press, the conventional sealed bag includes a containing space for storing food or articles, and the openings of the sealed bag are clamped by matching male and female clip chains to isolate the stored food or articles from contact with the outside world.

As the conventional sealed bag is difficult to exclude the gas in the containing space, when the gas in the containing space expands with the increase of air temperature, it is easy to open the sealed bag and cause a gap between the male and female clip chains, and the containing The space is connected to the outside world, and the effectiveness of storing food or items is greatly reduced.

In order to solve the above problem, the improved sealed bag is preset with a perforation and an air valve is installed on the periphery of the perforation. Then food or articles are placed in the accommodation space and the opening of the sealed bag is clamped by a male or female clip chain. The electric suction device such as the suction nozzle of the vacuum cleaner is aligned with the air valve of the bag body to extract the air in the bag body to achieve a vacuum state, thereby ensuring the effect of storing food or articles for a long time.

The improved sealed bag also has its shortcomings. First, when the sealed bag contains powder, the powder is easy to get stuck in the air valve, which reduces the sealing effect and air extraction effect of the air valve. Second, although the air extraction device can Reduce the gas in the accommodating space, but it is difficult to evacuate to the vacuum state. The remaining gas may still cause a gap between the male and female clamp chains.

In view of this, the object of the present invention is to provide a sealed bag and a method of using the same, which can avoid the gap between the matching chains to effectively isolate the inside of the sealed bag from the outside.

In order to achieve the above object, a sealed bag provided by the present invention includes: a bag body having a containing space and an opening communicating the containing space with the outside; a first clip chain is provided on the bag body, A second clip chain is provided on the bag body to separate the accommodation space into a first space and a second space, wherein the first space is located in the first clip. Between the chain and the second clamp chain; a venting device is disposed between the first clamp chain and the second clamp chain, and is used to guide the gas in the first space to the outside.

The method for using a sealed bag provided by the present invention comprises the following steps: A. operating the first clip chain to close the opening of the bag body; B. operating the air venting device to discharge the gas in the containing space of the bag body to the outside; C. Operate the second clip chain to isolate the first space from the second space to the accommodation space; D. Operate the venting device to discharge the gas in the first space to the outside.

The effect of the present invention is that the venting device can exhaust the gas in the first space, make the first space approach the vacuum, and make the force exerted by the atmosphere outside the bag body greater than the gas in the second space. The force exerted on the bag body to expand outwards due to expansion causes the second clip chain to maintain the closed state all the time.

In order to explain the present invention more clearly, two preferred embodiments are described in detail below with reference to the drawings. Please refer to FIG. 1 to FIG. 7 d. The sealed bag 100 according to the first preferred embodiment of the present invention includes a receiving device 10 and an air extraction device 20.

The accommodating device 10 includes a bag body 11, and a first clip chain 12, a second clip chain 13, and a vent device 14 disposed on the bag body 11, wherein the bag body 11 has a receiving space 111. And an opening 11a communicates the accommodating space 111 with the outside, and the opening 11a can be used for the article 1 to be put into the accommodating space 111.

The first clip chain 12 includes a mating male clip chain 121 and a female clip chain 122, and the second clip chain 13 includes a mating male clip chain 131 and a female clip chain 132. The first clip Both the chain 12 and the second clip chain 13 can be operated between an open state S1 and a closed state S2, where the open state S1 is separated by the matching male and female clip chains 121, 122, 131, 132; the The closed state S2 is a combination of matched male and female clip chains 121, 122, 131, 132. The first clip chain 12 is in a closed state S2 to close the opening 11a, and to isolate the accommodation space 111 inside the bag body 11 from the outside, and the second clip chain 13 is in a closed state S2 and is divided into one by the accommodation space 111. The first space 111a and a second space 111b, wherein the first space 111a is located between the first clip chain 12 and the second clip chain 13, and the second space 111b is used to receive the article 1. The bag body 11 further has a perforation 11b located between the first clip chain 12 and the second clip chain 13 and communicates with the first space 111a.

As shown in FIG. 3 and FIG. 4, the vent device 14 includes a valve body 141 and a check piece 142 located inside the valve body 141. The valve body 141 includes a base 143, a top cover 144, and a seal 145, wherein the base 143 is coupled to the hole edge of the perforation 11b of the bag body 11, and the base 143 has an air inlet hole 143a and the The first space 111a communicates; the top cover 144 is coupled to the base 143 and has a protruding mouth 144a. The protruding mouth 144a is provided with an exhaust hole 144b to communicate the inside of the valve body 141 and the outside; the seal 145 is provided on the Between the base 143 and the top cover 144 to increase the closeness when the base 143 and the top cover 144 are combined.

The non-return member 142 is a flexible film having a first portion 142a and a second portion 142b, wherein the first portion 142a is connected to the base 143, and the second portion 142b is controlled and connected to a Move between the first position L1 and a second position L2. At the first position L1, the second portion 142b covers the air inlet hole 143a to block the communication between the air outlet hole 144b and the first space 111a (see FIG. 3); When the second position L2 is located, the air inlet hole 143a is opened, so that the inside of the valve body 141 communicates with the first space 111a (see FIG. 4).

The air extractor 20 includes a gas extractor 21, a lead pipe 22, a shield 23, and two butt pipes 24. The gas extractor 21 can be operated to move the gas in a specific direction. The gas in this embodiment The pump 21 is based on a syringe, but is not limited thereto.

As shown in FIG. 5, each of the two ends of the guide tube 22 has a clamping portion 221. The outer diameter of each clamping portion 221 near the mouth of the guide tube 22 is the first length R1, and each clamping portion 221 The outer diameter away from the mouth of the guide pipe 22 is a second length R2, wherein the first length R1 is smaller than the second length R2, and two flanges 222 are provided between the two clamping portions 221, and the two flanges At least one air hole 22a is provided on the pipe wall between 222, and the number of air holes 22a in this embodiment is one.

Please refer to FIG. 6a and FIG. 6b. The shielding member 23 is a flexible pipe body, and is sleeved on the outside of the connecting pipe 22 and located between the two flanges 222. A change between a state P1 and a second state P2. In the first state P1, the inner wall of the shielding member 23 is attached to the outer surface of the guide tube 22 to cover the air hole 22a (see FIG. 6a). In the second state P2, the shielding member 23 is deformed so that there is a gap between the inner wall and the outer surface of the guide tube 22 (see FIG. 6b).

Please refer to FIG. 1 and FIG. 2 again, one of the butt pipe 24 is sleeved on the latching portion 221 of one of the protruding nozzle 144a and the guide pipe 22, and the other butt pipe 24 is sleeved on the guide pipe 22. The other clamping portion 221 and the gas extractor 21. Since the first length R1 of each clamping portion 221 is shorter than the second length R2, each butt pipe 24 can be easily set on the corresponding clamping portion 221, and because the butt pipe 24 is difficult to be set on the guide pipe 22 The flange 222 can limit the length that each of the butt pipes 24 fits into the guide pipe 22, and can further prevent the butt pipes 24 from covering the air hole 22a.

The above is a description of the components and related positions of the sealed bag 100 according to the first preferred embodiment of the present invention. I will describe its use as follows. When the gas pump 21 is operated to extract gas from the inside of the bag body 11 to the outside of the bag body 11, the check member 142 is deflected from the first position L1 to the second position L2 to open the air inlet hole 143a. The gas inside the bag body 11 flows from the perforation 11b through the valve body 141, and flows from the exhaust hole 144b into the butt pipe 24, the lead pipe 22, and the gas extractor 21. Because the shielding member 23 is flexible, when the gas flows through the guide tube 22, the inner pressure of the shielding member 23 covering the air hole 22a is reduced, and the inner wall of the shielding member 23 is attached to the outside of the guide tube 22. The air hole 22a is closed on the surface, so that the gas outside the guide pipe 22 and the shielding member 23 does not flow into the guide pipe 22 from the air hole 22a.

When the gas pump 21 pushes the gas in the direction of the bag body 11, the check piece 142 swings back to the first position L1 and closes the air inlet hole 143a to prevent the gas from flowing back into the first space 111a. . At the same time, the gas flows out from the air hole 22a of the guide pipe 22 to deform the flexible shield 23 into the second state P2. A gap is formed between the inner wall of the shield 23 and the outer surface of the guide pipe 22. To allow gas to exit the connecting tube 22.

By operating the gas pump 21 to extract the gas from the inside of the bag body 11 to the outside of the bag body 11, and then pushing the gas in the direction of the bag body 11, the gas extracted from the bag body 11 can be discharged to the outside through the air hole 22a. .

Please refer to FIGS. 7 a to 7 and FIG. 8. The following describes the use steps of the sealed bag 100: Step 1: After the article 1 is placed in the receiving space 111 b of the bag body 11, the bag body 11 is squeezed or operated. The air extraction device 20 exhausts the gas in the accommodating space 111 to the outside (see Fig. 7a); Step 2: Operate the first clamp chain 12 to make the first clamp chain 12 in a closed state S2 to close the bag body 11 Opening 11a; Step 3: Operate the air extraction device 20 to exhaust the gas in the accommodating space 111 to the outside (see Fig. 7b); Step 4: Operate the second clamp chain 13 to make the second clamp chain 13 in a closed state In step S2, the first space 111a and the second space 111b are isolated, and the article 1 is confined to the second space 111b. Step 5: The air extraction device 20 is operated in the first space 111a. After the gas is discharged to the outside (see FIG. 7c), after the first space 111a is close to the vacuum state, the butt pipe 24 sleeved on the protruding nozzle 144a can be removed (see FIG. 7d).

After performing the above steps, since the first space 111a is almost in a vacuum state, the external force F1 caused by the atmospheric pressure on the bag body 11 is slightly equal to the area surrounded by the first clip chain 12 and the second clip chain 13. Product of atmospheric pressure. Therefore, even if some gas remains in the second space 111b and the gas may expand as the temperature rises, the external force F1 is still greater than the gas expansion in the second space 111b and is applied to the bag body 11 to support outward The opening force further maintains the second clip chain 13 in the closed state S2, and strengthens the sealing effect of the containing device 10.

Also, since the vent device 14 and the article 1 are respectively located in the first space 111a and the second space 111b, even if the container 10 contains the powder, the powder will not get stuck in the vent device 14 and affect its sealing. And discouraged function.

On the basis of the bag body 11, the first clip chain 12, and the second clip chain 13 of the first preferred embodiment described above, the vent device can have the following different forms. Please refer to FIG. 9 and FIG. 10, a venting device 30 according to a second preferred embodiment of the present invention includes a valve body 31, a non-return member 32 and a first elastic member 33 located in the valve body 31. A second elastic member 34 and a film 35.

The valve body 31 includes a base 311, an outer cover 312, a top cover 313, and a seal 316. The base 311 is coupled to the perforated 11b hole edge of the bag body 11, and the base 311 has an air inlet. The hole 311a communicates with the first space 111a. The outer cover 312 is sleeved on the outside of the base 311, and the outer cover 312 has a retracted blocking edge 312 a.

The top cover 313 includes a main body 314 and a resisting member 315 coupled to the main body 314, wherein the main body 314 is integrated in the base 311, and an inner valve space 31a is surrounded by the main body 314 and the base 311; The body 314 and the blocking member 315 are provided with an exhaust hole 313a to communicate the valve inner space 31a and the outside, wherein the body 314 is provided with a first hole section 314a of the exhaust hole 313a, and the blocking member 315 is provided with the exhaust One of the holes 313a is a second hole segment 315a, and the diameter of the first hole segment 314a is larger than the diameter of the second hole segment 315a. The body 314 has a convex ring 314b formed radially outward and abuts against the inner wall of the base 311. The convex ring 314b is recessed with a ring groove 314c, and the seal 316 is disposed in the ring groove 314c and abuts. The base 311 and the body 314 prevent gas from flowing into the valve inner space 31a from a gap between the base 311 and the body 314.

The main body 314 can be moved between a third position L3 and a fourth position L4. At the third position L3 (see FIG. 9), the convex ring 314b of the main body 314 abuts the retaining edge 312a of the outer cover 312. So that the body 314 does not leave the base 311; when the fourth position L4 (see FIG. 10), the body 314 is retracted into the base 311 and the volume of the valve inner space 31a is reduced.

The first elastic member 33 is located between the base 311 and the main body 314, and is used to push the main body 314 to move the main body 314 toward the third position L3.

The non-return member 32 is located in the exhaust hole 313a. The non-return member 32 in this embodiment is a sphere but is not limited thereto, and the outer diameter of the non-return member 32 is between that of the first hole section 314a. The hole diameter is between the hole diameter of the second hole segment 315a. The check piece 32 can be moved between a first position L1 and a second position L2. At the first position L1, the check piece 32 abuts on the hole wall of the second hole section 315a (see Figure 9); in the second position L2, the check piece 32 is located in the first hole section 314a and allows the exhaust hole 313a to communicate the valve inner space 31a and the outside (see Figure 10).

The body 314 has a convex portion 314d located on the hole wall of the first hole segment 314a; the second elastic member 34 is located in the exhaust hole 313a and both ends of the second elastic member 34 abut against the convex portion 314d, respectively. The anti-reverse member 32 is adapted to push the anti-return member 32 to move in the direction of the first position L1.

The film 35 has a first portion 351 and a second portion 352, wherein the first portion 351 is connected to the base 311, and the second portion 352 is controlled to be in a fifth position L5 and a sixth position L6. Between moves. In the fifth position L5, the second portion 352 covers the air inlet hole 311a (see FIG. 9); when the film 35 is in the sixth position L6, the air inlet hole 311a is opened, so that the valve inner space 31a and the The first space 111a is connected (see Figure 10).

The method of using the air deflation device 30 of the second preferred embodiment of the present invention is as follows. The operator only needs to apply an external force F2 to push the top cover 313 in the direction of the bag body 11 and squeeze the bag body 11 (that is, from the first The three positions L3 are moved to the fourth position L4). At the same time, the gas in the bag body 11 pushes the film 35 to shift it to the sixth position L6 and enter the valve inner space 31a, and the top cover 313 goes to The movement of the bag body 11 in the direction reduces the volume in the valve inner space 31a, causing the pressure in the valve inner space 31a to increase, and a thrust is generated to push the check piece 32 from the first position L1 to the second position L2 The gas can flow out of the valve space 31a from the exhaust hole 313a.

When the pressure generated by squeezing the gas in the bag body 11 drops to a preset pressure, the film 35 returns to the fifth position L5 and closes the air inlet 311a. Of course, in the above embodiment, the film 35 may be added or removed according to requirements, and is not limited thereto.

When the second elastic member 34 overcomes the thrust of the gas in the valve inner space 31a against the check member 32, the second elastic member 34 pushes the check member 32 to the first position L1, in other words, when When the pressure in the valve inner space 31a is lower than a preset pressure, the non-return member 32 blocks the communication passage between the valve inner space 31a and the outside. After the operator removes the external force F2, the first elastic member 33 can push the body 314 to the third position L3.

The method of using the second preferred embodiment of the present invention is similar to the method of using the sealed bag 100 of the first preferred embodiment, except that the venting device 30 does not need to be combined with the above-mentioned venting device 20, and the venting device is operated by 30 is moved from the third position L3 to the fourth position L4, so that the gas in the first space 111a (and the second space 111b) can be discharged, and a vent effect can be achieved.

The above descriptions are only the preferred and feasible embodiments of the present invention, and any equivalent changes made by applying the description of the present invention and the scope of patent application should be included in the patent scope of the present invention.

[this invention]
100‧‧‧Sealed Bag
10‧‧‧ Receiving device
11‧‧‧ bag body
11a‧‧‧ opening
11b‧‧‧perforation
111‧‧‧accommodation space
111a‧‧‧First Space
111b‧‧‧Second Space
12‧‧‧ the first clip chain
13‧‧‧Second clip chain
121, 131‧‧‧ male clip chain
122, 132‧‧‧female clip chain
14‧‧‧deflation device
141‧‧‧Valve body
142‧‧‧ Non-return piece
142a‧‧‧Part I
142b‧‧‧Part II
143‧‧‧base
143a‧‧‧Air inlet
144‧‧‧Top cover
144a‧‧‧ convex mouth
144b‧‧‧Vent
145‧‧‧seals
20‧‧‧Exhaust device
21‧‧‧gas pump
22‧‧‧Leader
221‧‧‧Card Making Department
222‧‧‧ flange
22a‧‧‧Stoma
23‧‧‧shield
24‧‧‧ Butt control
30‧‧‧deflation device
31‧‧‧Valve body
31a‧‧‧Valve space
311‧‧‧ base
311a‧‧‧Air inlet
312‧‧‧Cover
312a‧‧‧Border
313‧‧‧Top cover
313a‧‧‧Vent
314‧‧‧ Ontology
314a‧‧‧First hole section
314b‧‧‧ convex ring
314c‧‧‧Circular groove
314d‧‧‧ convex
315‧‧‧Resistant
315a‧‧‧Second hole section
316‧‧‧seal
32‧‧‧ Non-return piece
33‧‧‧The first elastic piece
34‧‧‧Second elastic member
35‧‧‧ film
351‧‧‧Part I
352‧‧‧Part 2
F1, F2‧‧‧ external force
L1‧‧‧First position
L2‧‧‧Second position
L3‧‧‧ Third position
L4‧‧‧ Fourth position
L5‧‧‧Fifth position
L6‧‧‧ Sixth position
P1‧‧‧First State
P2‧‧‧Second State
R1‧‧‧first length
R2‧‧‧second length
S1‧‧‧ open state
S2‧‧‧ closed

FIG. 1 is a schematic perspective view of a sealed bag according to a first preferred embodiment of the present invention. FIG. 2 is a partially enlarged view of FIG. 1. FIG. 3 is a cross-sectional view of a venting device according to a first preferred embodiment of the present invention. Figure 4 is similar to Figure 3. FIG. 5 is a cross-sectional view of a lead pipe according to a first preferred embodiment of the present invention. Fig. 6a is a partial enlarged view of Fig. 2. FIG. 6b is similar to FIG. 6a and FIG. 7a is a schematic diagram of the first step of using the sealed bag according to the first preferred embodiment of the present invention. FIG. 7b is a schematic diagram of the second and third steps of using the sealed bag according to the first preferred embodiment of the present invention. FIG. 7c is a schematic diagram of steps 4 and 5 of using the sealed bag according to the first preferred embodiment of the present invention. FIG. 7d is a schematic view showing a sealed state of the sealed bag according to the first preferred embodiment of the present invention. FIG. 8 is a flowchart of using the sealed bag according to the first preferred embodiment of the present invention. FIG. 9 is a cross-sectional view of a venting device according to a second preferred embodiment of the present invention. Figure 10 is similar to Figure 9.

no

Claims (17)

A sealed bag includes: a bag body having an accommodating space and an opening communicating the accommodating space with the outside world; a first clip chain arranged on the bag body to close the opening; a second clip A chain is arranged on the bag body to divide the containing space into a first space and a second space, wherein the first space is located between the first clip chain and the second clip chain. A venting device is disposed between the first clamping chain and the second clamping chain to guide the gas in the first space to the outside. The sealed bag according to claim 1, wherein the venting device includes a valve body and a check piece, the valve body has an air inlet hole and an air outlet hole, wherein the air inlet hole communicates with the first space, The exhaust hole communicates with the inside of the valve body and the outside; the check member is controlled to move between a first position and a second position, and the check member blocks the exhaust when the check member is in the first position. The communication between the hole and the air inlet hole, when the non-return member is located in the second position, opens the channel between the air outlet hole and the air inlet hole. The sealed bag according to claim 2, wherein the valve body includes a base and a top cover, the base is coupled to the bag body and has the air inlet hole, the top cover has the air outlet hole, and the top The cover is integrated in the base and can be moved between a third position and a fourth position, wherein when the top cover is located in the third position, the backstop stays in the first position and abuts the top cover And closing the exhaust hole, when the top cover is located in the fourth position, the non-return member moves to the second position, so that the inside of the valve body communicates with the outside world and the exhaust hole communicates with the air intake hole. The sealed bag according to claim 3, wherein the air deflation device includes a first elastic member for pushing the top cover to move the top cover toward the third position. The sealed bag according to claim 3 or 4, wherein the venting device includes a second elastic member; the exhaust hole of the top cover has a first hole section and a second hole section, the first hole section The hole diameter is larger than the hole diameter of the second hole section, the check piece is located in the exhaust hole, and the second elastic member pushes the check piece to make the check piece abut against the hole wall of the second hole section Up and stay in the first position. The sealed bag according to claim 5, wherein the top cover includes a body and a resisting member, the body has the first hole section of the exhaust hole, and the body has a convex portion located in the first hole section hole On the wall; the blocking member has the second hole section of the exhaust hole; two ends of the second elastic member respectively abut the convex portion and the non-return member. The sealed bag according to claim 3, wherein the valve body includes at least one seal, and the seal is disposed between the base and the top cover. The sealed bag according to claim 7, wherein the valve body includes an outer cover; the top cover has a convex ring formed radially outward, and the seal is located between the surface of the convex ring and the inner surface of the base The cover is sleeved on the outside of the base, and the cover has a blocking edge for resisting the convex ring of the top cover, so that the top cover cannot be separated from the base. The sealed bag according to claim 3, wherein the valve body includes a flexible film, the film is controlled to move between a fifth position and a sixth position, and a part of the film is connected to the valve. The other part of the base covers the air inlet hole when the film is located in the fifth position, and makes the inside of the valve body communicate with the first space when the film is located in the sixth position. The sealed bag according to claim 2, wherein the valve body includes a base and a top seat, the base is coupled to the bag body and has an air inlet, the top seat is coupled to the base and has the row Air hole; the check piece is flexible and partly connected to the base, and the other part covers the air inlet hole when the check piece is in the first position, and when the check piece is in the second position, The inside of the valve body is communicated with the first space. The sealed bag according to claim 10 further includes an air extraction device, which is operated to guide the gas in the first space through the air release device to the outside; the top seat has a convex mouth, the convex The exhaust hole is provided in the mouth, and the convex mouth is connected to the air extraction device. The sealed bag according to claim 11, wherein the air extraction device includes a lead pipe, a gas pump and a shield; one end of the lead pipe is connected to the protruding mouth, and at least one air hole is provided on the pipe wall. A gas pump is connected to the other end of the lead pipe, and the shielding member is disposed on the lead pipe and is changeable between a first state and a second state, wherein the gas pump places the first space in the first space. When the gas is withdrawn to the outside of the bag body, the non-return member is located in the second position, and the shielding member is in the first state to cover the air hole; when the gas pump pushes the gas toward the bag body, the stopper The reverse member is located in the first position, and the shielding member is in the second state, so that the air hole communicates with the outside world. The sealed bag according to claim 12, wherein the air extraction device includes a pair of connecting pipes, the butting pipe is flexible and one end is sleeved on the convex mouth, and the other end is sleeved on one end of the guide tube and does not cover the air hole. . The sealed bag according to claim 13, wherein the shielding member is a flexible pipe body, the shielding member is sleeved outside the guide pipe, and the inner wall of the shielding member in the first state is affixed to the guide. On the outer surface of the takeover tube, the shield in the second state is deformed so that a gap is formed between the inner wall and the outer surface of the guide tube to allow gas to be discharged. A method for using the sealed bag according to claim 1, comprising the following steps: A. operating the first clip chain to close the opening of the bag body; B. operating the air venting device to exhaust the gas in the containing space of the bag body To the outside world; C. operating the second clip chain to isolate the first space and the second space from the containing space; D. operating the air venting device to discharge the gas in the first space to the outside world . The method for using a sealed bag according to claim 15, before performing step A, the method further comprises operating the air venting device to discharge the gas in the accommodating space. The method for using a sealed bag according to claim 15, wherein before performing step A, the method further comprises squeezing the bag body to discharge the gas in the accommodating space.