Packaging bag and sealing detection device thereof

Abstract

The invention relates to the field of material storage containers, in particular to a packaging bag and a sealing detection device.The packaging bag comprises a liquid storage cavity, the lower end of the liquid storage cavity is fixedly provided with a first cooling material storage cavity and a second cooling material storage cavity, and the first cooling material storage cavity communicates with the second cooling material storage cavity; the positions, corresponding to the upper end and the lower end of the blocking belt, of the first cooling material storage cavity and the second cooling material storage cavity are thickened, and a pull-open plate is arranged at the position, located at the lower end of the blocking belt, of the joint of the first cooling material storage cavity and the second cooling material storage cavity. Therefore, the portable beverage bottle is convenient to carry, and beverage contained in the portable beverage bottle can be cooled at the same time.

Description

Technical Field

[0001] The present invention relates to the field of material storage containers, and in particular to a packaging bag and a sealing detection device thereof. Background Art

[0002] Plastic packaging bags can effectively protect the items inside the package from damage by the external environment, such as dust, moisture and oxygen. At the same time, plastic packaging bags are light and easy to seal, making it more convenient to carry and store items. At the same time, compared with other packaging methods, packaging bags can be folded and compressed, thereby saving space and making them easier to carry.

[0003] However, existing packaging bags often have very simple functions, and often only have one function of containing materials. When people travel, they often carry beverages and other drinks, and beverages are often packaged in packaging bags. In summer, the temperature of beverages often rises due to the temperature, so the drinking effect of the beverages becomes poor. If you want to lower the temperature of the beverages, you often need to carry additional refrigeration equipment, which is quite troublesome. At the same time, existing packaging bags often have poor strength. When containing beverages containing gas, such as carbonated beverages, they often deform due to the expansion of the gas, which in turn reduces the strength of the packaging bags.

[0004] Packaging bags usually also need to be tested for airtightness. Existing packaging bag sealing testing equipment can often only test the sealing of packaging bags with a single chamber, but cannot test the sealing of packaging bags with multiple chambers, nor can it test the sealing between multiple chambers of a packaging bag. Summary of the Invention

[0005] The present invention provides a packaging bag, which can solve the problem in the prior art that the packaging bag cannot cool the beverage contained therein.

[0006] A packaging bag, comprising: A liquid storage chamber, used for storing a liquid or semi-solid third medium; a first cooling storage cavity, the first cooling storage cavity being disposed on a surface of the liquid storage cavity and being used to store a first medium; and The second cooling storage chamber is arranged on the surface of the liquid storage chamber, and the second cooling storage chamber is used to store the second medium. The second cooling storage chamber and the first cooling storage chamber are separated by a barrier tape; when the barrier tape is torn off, the first medium and the second medium are mixed, thereby being used to refrigerate the third medium, and a pull-out plate is provided at the connection between the first cooling storage chamber and the second cooling storage chamber, which is located at the lower end of the barrier tape.

[0007] The sides of the liquid storage cavity, the first cooling material storage cavity and the second cooling material storage cavity are all provided with through holes for filling the medium.

[0008] When using the packaging bag of the present invention, a third medium to be contained is added to the liquid storage chamber, where the third medium is a beverage for daily drinking. The first medium and the second medium are added to the first cooling storage chamber and the second cooling storage chamber respectively, where the first medium and the second medium are water and ammonium nitrate respectively. When the beverage needs to be cooled for drinking, the first cooling storage chamber and the second cooling storage chamber can be torn open using a container, and the two media in the first cooling storage chamber and the second cooling storage chamber can be poured into the container, and the water and ammonium nitrate can be mixed, and the packaging bag can be placed in the solution composed of water and ammonium nitrate. When ammonium nitrate dissolves in water, it will absorb a large amount of heat, thereby reducing the temperature of the mixed solution composed of ammonium nitrate and water, and then the temperature of the beverage in the liquid storage chamber is fully reduced, thereby effectively improving the taste of the beverage in hot summer, and there is no need to carry additional cooling equipment, which greatly improves convenience.

[0009] The present invention also provides a packaging bag sealing detection device, comprising: A detection box, wherein a gas injection device is installed in the detection box, the gas injection device includes a gas injection block, the gas injection block is fixedly connected to the lower base plate of the detection box, and three gas injection pipes are fixedly installed on one side of the gas injection block facing the detection box, one of the gas injection pipes is located at the upper position of the gas injection block, and the other two gas injection pipes are located at the lower position of the gas injection block, and the lower two gas injection pipes are located on both sides of the upper gas injection pipe. A pressure sensing device is provided on one side wall of the detection box, a water tank is fixedly mounted near the upper end of the detection box, and a cover plate is fixedly installed on the upper end of the detection box.

[0010] Preferably, the gas injection pipe is provided with a sealing mechanism, which includes a sealing plate, a sealing hose, a sealing slide tube and a sealing screw sleeve. The sealing plate is annular and is fixedly mounted on one end of the gas injection pipe close to the gas injection block. A sealing groove is provided on the side of the gas injection pipe, and a sealing slide tube is slidably connected in the sealing groove. A sealing hose is sleeved on the end of the sealing slide tube away from the sealing plate. One end of the sealing hose is fixedly connected to the sealing slide tube, and the other end of the sealing hose is fixedly connected to the sealing plate. A sealing screw sleeve is also rotatably connected to the gas injection pipe, and the sealing screw sleeve is threadedly connected to the sealing slide tube.

[0011] Preferably, each of the three gas injection pipes is provided with a second water inlet, and the water tank is provided with a first water inlet corresponding to the three second water inlets one by one, the corresponding first water inlet and the second water inlet are connected by a first water receiving pipe, and the two ends of the first water receiving pipe are respectively threadedly connected to the first water inlet and the second water inlet.

[0012] Preferably, the water tank and the gas injection pipe are connected by a second water connecting pipe, and the second water connecting pipe is provided with a one-way ventilation mechanism at a position close to the gas injection pipe, and the one-way ventilation mechanism includes a one-way ventilation pipe, a one-way ventilation slider and a return spring, the one-way ventilation pipe is fixedly installed and extends into the gas injection pipe, the one-way ventilation pipe is communicated with the gas injection pipe, the one-way ventilation slider is slidably connected in the one-way ventilation pipe, and a return spring is also provided in the one-way ventilation pipe, one end of the return spring is fixedly connected to the one-way ventilation slider, and the other end is fixedly connected to the inner wall of the one-way ventilation pipe, the end of the one-way ventilation slider away from the return spring is processed into a frustum shape, the interior of the one-way ventilation pipe is processed into a shape matching the one-way ventilation slider, and an air outlet groove is provided on the side of the end of the one-way ventilation pipe located in the gas injection pipe.

[0013] Preferably, the pressure sensing device includes a first pressure sleeve, which is fixedly connected to the side wall of the water tank and communicates with the interior of the water tank. A tension sensor is fixedly installed in the first pressure sleeve. A first negative pressure sheet is provided at one end of the first pressure sleeve close to the interior of the water tank. The first negative pressure sheet and the tension sensor are fixedly connected by a rod.

[0014] Preferably, the pressure sensing device includes a second pressure sleeve, which is fixedly connected to the side wall of the water tank and communicates with the interior of the water tank. The end of the second pressure sleeve away from the water tank is fixedly connected to a laser rangefinder. A second negative pressure sheet is slidably connected to the second pressure sleeve. A positioning spring is also provided in the second pressure sleeve, one end of the positioning spring is fixedly connected to the second negative pressure sheet, and the other end is fixedly connected to the inner wall of the second pressure sleeve at one end close to the water tank.

[0015] Preferably, a groove that engages with the cover plate is opened at the upper end of the detection box, and a sealing strip is fixedly installed on the edge of the cover plate. The cross-section of the sealing strip is L-shaped, and the sealing strip is fitted with the edge of the cover plate. The outer edge of the sealing strip is evenly processed with grooves. Beneficial effects: 1. The present invention directly pulls the pull-open plate, which will tear the barrier tape and connect the first cooling storage chamber to the second cooling storage chamber. The water in the first cooling storage chamber and the ammonium nitrate in the second cooling storage chamber will mix and react, thereby absorbing a large amount of heat, thereby reducing the temperature of the mixed solution composed of the water and the ammonium nitrate, and further reducing the temperature of the beverage in the storage chamber, thereby effectively improving the taste of the beverage in the hot summer. At the same time, there is no need to carry additional cooling equipment, which greatly improves convenience.

[0016] 2. The present invention injects a fixed amount of ammonia into the liquid storage chamber, the first cooling storage chamber, and the second cooling storage chamber through an external pipeline and a gas injection tube, and then keeps it still for a certain period of time. At the same time, if the pressure sensing device undergoes obvious changes, it can be determined that the packaging bag is leaking. If the pressure sensing device does not change, it can be considered that the packaging bag is not leaking. In this process, if the packaging bag leaks, ammonia leaks out. At the same time, since the density of ammonia is lower than that of air, ammonia will float on the upper end of the detection box. At this time, ammonia will meet the water in the water tank. Ammonia is easily soluble in water. At this time, the molecular weight of air in the detection box will be significantly reduced, and the volume in the detection box will not change. At this time, the pressure sensing device can obviously sense the change in the pressure in the detection box and notify the operator of the above change. The liquid storage chamber, the first cooling storage chamber, and the second cooling storage chamber are paired in pairs, so that a total of three are obtained. combinations, the liquid storage chamber and the first cooling storage chamber, the liquid storage chamber and the second cooling storage chamber, the first cooling storage chamber and the second cooling storage chamber, select any of the above combinations and inject hydrogen chloride into one chamber through the gas injection tube and the external pipeline, and inject ammonia into the other chamber, and then observe the pressure sensing device. If there is no obvious change in the pressure sensing device after the three combinations above, it can be determined that there is no mutual leakage between the three chambers inside the packaging bag. If there is an obvious change in the pressure sensing device in one of the combinations, it can be considered that there is a leakage between the chambers inside the packaging bag. In this process, hydrogen chloride and ammonia will react to generate ammonium chloride, causing the packaging bag to have an obvious volume shrinkage, which can be observed through the pressure sensing device. Through the above technical means, without adding features, it is possible to check whether the packaging bag is leaking to the outside world and whether there is a leakage between the chambers inside the packaging bag.

[0017] 3. The present invention detects the sealing between the chambers inside the packaging bag. When the chamber inside the packaging bag leaks, hydrogen chloride and ammonia will mix and react to produce ammonium chloride crystals. At this time, a strong negative pressure will be generated in the packaging bag and the gas injection tube. At this time, the one-way ventilation slider will be pulled by the negative pressure, and the return spring will be compressed. The air outlet groove will be connected to the inside of the gas injection tube. At this time, the water in the water tank will enter the gas injection tube and the packaging bag through the second water connecting pipe. In this way, the ammonium chloride crystals can be effectively dissolved, and the heat generated by hydrogen chloride and ammonia during the reaction process can be effectively absorbed, thereby preventing the packaging bag from being burned through due to heat accumulation and preventing the ammonium chloride crystal particles from volatilizing into the detection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of the packaging bag of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at center A; Figure 3 Schematic diagram of the structure of the packaging bag sealing detection equipment of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged structure at point B in the middle; Figure 5 For the present invention Figure 3 A schematic diagram of the partially enlarged structure at point C in the middle; Figure 6 This is a schematic structural diagram of the second technical solution of the packaging bag detection equipment in the present invention; Figure 7 For the present invention Figure 6 The schematic diagram of the local enlarged structure at D in the middle; Figure 8 Schematic diagram of the cross-section structure of the gas injection pipe in the present invention; Figure 9 For the present invention Figure 8 Schematic diagram of the local enlarged structure at E in the middle; Figure 10 For the present invention Figure 8 A schematic diagram of the partially enlarged structure at F in the middle; Figure 11 For the present invention Figure 8 Schematic diagram of the partially enlarged structure at G in the middle; Figure 12 Schematic diagram of the structure of the first pressure sensing device in the present invention; Figure 13 is a schematic structural diagram of a second pressure sensing device in the present invention; Figure 14This is a structural schematic diagram of the second technical solution of the packaging bag detection device in the present invention from another perspective.

[0019] Description of reference numerals: 100, liquid storage chamber; 101, first cooling storage chamber; 102, second cooling storage chamber; 103, barrier strip; 104, pull-out plate; 200, detection box; 201, water tank; 202, cover plate; 203, first water inlet; 300, gas injection device; 301, gas injection block; 302, gas injection pipe; 303, blocking chute; 304, second water inlet; 305, first water inlet pipe; 306, second water inlet pipe; 400, pressure sensing device; 4 01. First pressure sleeve; 402. Tension sensor; 403. First negative pressure piece; 404. Second pressure sleeve; 405. Laser rangefinder; 406. Second negative pressure piece; 407. Positioning spring; 500. Sealing mechanism; 501. Sealing plate; 502. Sealing hose; 503. Sealing slide; 504. Sealing screw sleeve; 600. One-way ventilation mechanism; 601. One-way ventilation pipe; 602. One-way ventilation slider; 603. Reset spring; 604. Air outlet groove. DETAILED DESCRIPTION

[0020] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0021] like Figure 1 and Figure 2 As shown, the present invention provides a packaging bag, comprising: The liquid storage chamber 100 is used to store a liquid or semi-solid third medium; A first cooling storage chamber 101 is provided on the surface of the liquid storage chamber 100 and is used to store a first medium; and The second cooling storage chamber 102 is arranged on the surface of the liquid storage chamber 100. The second cooling storage chamber 102 is used to store the second medium. The second cooling storage chamber 102 and the first cooling storage chamber 101 are separated by a barrier tape 103; when the barrier tape 103 is torn off, the first medium is mixed with the second medium, thereby being used to refrigerate the third medium, and the first cooling storage chamber 101 and the second cooling storage chamber 102 are provided with a pull-open plate 104 at the connection point thereof, which is located at the lower end of the barrier tape 103.

[0022] The sides of the liquid storage chamber 100 , the first cooling material storage chamber 101 and the second cooling material storage chamber 102 are all provided with through holes for filling the medium.

[0023] It should be noted that when using the packaging bag of the present invention, the third medium to be contained is added to the liquid storage chamber 100, and the third medium is a daily drinking beverage. The first medium and the second medium are added to the first cooling storage chamber 101 and the second cooling storage chamber 102 respectively, and the first medium and the second medium are water and ammonium nitrate respectively. When the beverage needs to be cooled for drinking, a container can be found, the first cooling storage chamber 101 and the second cooling storage chamber 102 can be torn open respectively, and the water and ammonium nitrate can be mixed, and the packaging bag can be placed in the solution composed of water and ammonium nitrate. When ammonium nitrate dissolves in water, it will absorb a large amount of heat, thereby reducing the temperature of the mixed solution composed of ammonium nitrate and water, and then the temperature of the beverage in the liquid storage chamber 100 is fully reduced, thereby effectively improving the taste of the beverage in hot summer, and there is no need to carry additional cooling equipment, which greatly improves convenience.

[0024] When the beverage in the liquid storage chamber 100 needs to be cooled, the plate 104 can be directly pulled open with force. At this time, the barrier tape 103 will be torn from the middle, so that the first cooling storage chamber 101 and the second cooling storage chamber 102 are connected. The water in the first cooling storage chamber 101 and the ammonium nitrate in the second cooling storage chamber 102 will mix and react in the chamber formed by the first cooling storage chamber 101 and the second cooling storage chamber 102, thereby absorbing a large amount of heat. In this way, the beverage in the liquid storage chamber 100 can be cooled without preparing another container, thereby further improving the convenience while meeting the cooling effect.

[0025] The above two cooling methods can coexist and assist each other to better keep the temperature of the beverage at a lower level.

[0026] like Figures 3 to 14 As shown, the present invention also provides a packaging bag sealing detection device, include: The detection box 200 is provided with a gas injection device 300, and the gas injection device 300 includes a gas injection block 301, and the gas injection block 301 is fixedly connected to the lower base plate of the detection box 200. Three gas injection pipes 302 are fixedly installed on one side of the gas injection block 301 facing the detection box 200, one of the gas injection pipes 302 is located at the upper position of the gas injection block 301, and the other two gas injection pipes 302 are located at the lower position of the gas injection block 301, and the lower two gas injection pipes 302 are located on both sides of the upper gas injection pipe 302. A pressure sensing device 400 is provided on one side wall of the detection box 200, and a water tank 201 is fixedly mounted near the upper end of the detection box 200. A cover plate 202 is fixedly installed on the upper end of the detection box 200.

[0027] During the process of testing the packaging bag by the packaging bag sealing detection equipment, the packaging bag is placed in the detection box 200, the upper gas injection pipe 302 is inserted into the liquid storage chamber 100 through the through hole on the liquid storage chamber 100, and the two lower gas injection pipes 302 are respectively inserted into the first cooling storage chamber 101 and the second cooling storage chamber 102 through the through holes on the first cooling storage chamber 101 and the second cooling storage chamber 102, the cover 202 is covered, the detection box 200 is kept in a sealed state, and an external pipeline is connected to the gas injection pipe 302, and a certain amount of ammonia is injected into the liquid storage chamber 100, the first cooling storage chamber 101, and the second cooling storage chamber 102 through the external pipeline and the gas injection pipe 302, and then it is left to stand for a certain time. At this time, if the pressure sensing device 400 undergoes an obvious change, it can be determined that the packaging bag is leaking. If the pressure sensing device 400 does not change, it can be considered that the packaging bag is not leaking. During this process, if the packaging bag is leaking, ammonia will leak out. At the same time, since the density of ammonia is lower than that of air, ammonia will float on the upper end of the detection box 200. At this time, ammonia will meet the water in the water tank 201. Ammonia is easily soluble in water. At this time, the molecular weight of the air in the detection box 200 will be significantly reduced, while the volume in the detection box 200 will not change. At this time, the pressure sensing device 400 can obviously sense the change in the pressure in the detection box 200 and notify the operator of the above change. If It is necessary to further detect which part of the packaging bag has leaked. Ammonia is injected into the liquid storage chamber 100, the first cooling storage chamber 101 and the second cooling storage chamber 102 respectively. After a period of rest, the pressure sensing device 400 is used to determine which position has leaked. In the process of detecting the packaging bag, in addition to whether it has leaked to the outside, it is also necessary to detect whether there has been a leak in the liquid storage chamber 100, the first cooling storage chamber 101 and the second cooling storage chamber 102. The liquid storage chamber 100, the first cooling storage chamber 101 and the second cooling storage chamber 102 are paired in pairs, so that a total of three combinations are obtained: the liquid storage chamber 100 and the first cooling storage chamber 101, the liquid storage chamber 100 and the second cooling storage chamber 102, the first cooling storage chamber 101 and the second cooling storage chamber 102, select any of the above combinations and inject hydrogen chloride into one of the chambers through the gas injection pipe 302 and the external pipe, and inject ammonia into the other chamber, and then observe the pressure sensing device 400. If there is no obvious change in the pressure sensing device 400 after the three combinations above, it can be determined that there is no mutual leakage between the three chambers inside the packaging bag. If there is a significant change in the pressure sensing device 400 in one of the combinations, it can be considered that there is a leakage between the chambers inside the packaging bag. During this process, hydrogen chloride and ammonia will react to generate ammonium chloride, causing the packaging bag to have a significant volume shrinkage, which can be observed through the pressure sensing device 400.

[0028] like Figure 6 、 Figure 8 、 Figure 9 and Figure 10 As shown, the gas injection pipe 302 is provided with a sealing mechanism 500, and the sealing mechanism 500 includes a sealing plate 501, a sealing hose 502, a sealing slide pipe 503 and a sealing screw sleeve 504. The sealing plate 501 is annular and is fixedly mounted on one end of the gas injection pipe 302 close to the gas injection block 301. A sealing groove 303 is provided on the side of the gas injection pipe 302, and a sealing slide pipe 503 is slidably connected in the sealing groove 303. The end of the sealing slide pipe 503 away from the sealing plate 501 is sleeved with a sealing hose 502, one end of the sealing hose 502 is fixedly connected to the sealing slide pipe 503, and the other end of the sealing hose 502 is fixedly connected to the sealing plate 501. A sealing screw sleeve 504 is also rotatably connected to the gas injection pipe 302, and the sealing screw sleeve 504 is threadedly connected to the sealing slide pipe 503.

[0029] It should be noted that by using the sealing mechanism 500 to seal the two sides of the gas injection tube 302 inserted into the packaging bag, the air tightness during the detection process can be improved and the detection accuracy can be improved. During this process, by rotating the sealing screw sleeve 504, the sealing screw sleeve 504 is threadedly connected to the sealing slide tube 503, and then the sealing slide tube 503 slides along the sealing slide groove 303. The sealing slide tube 503 will pull the sealing hose 502 and fold the sealing hose 502. The sealing hose 502 and the sealing plate 501 will clamp the two sides of the packaging bag, thereby effectively improving the sealing of the gas injection tube 302 when injecting gas into the packaging bag.

[0030] like Figure 3 、 Figure 4 and Figure 5 As shown, each of the three gas injection pipes 302 is provided with a second water inlet 304, and the water tank 201 is provided with a first water inlet 203 corresponding to the three second water inlets 304. The corresponding first water inlets 203 and the second water inlets 304 are connected by a first water inlet pipe 305, and the two ends of the first water inlet pipe 305 are respectively threadedly connected to the first water inlet 203 and the second water inlet 304.

[0031] Under normal circumstances, the first water inlet 203 and the second water inlet 304 are sealed by a threaded cover. When performing a sealing test, the threaded cover is unscrewed and the first water inlet 203 and the second water inlet 304 are connected through the first water inlet pipe 305. If there is a penetration phenomenon in the chamber of the packaging bag, ammonia will react with hydrogen chloride to generate ammonium chloride crystals. For example, at this time, there is a leakage between the liquid storage chamber 100 and the first cooling storage chamber 101. Water will flow through the first water inlet pipe 305 into the first cooling storage chamber 101 and the second cooling storage chamber 102 to dissolve the ammonium chloride. Because the ammonium chloride crystal particles produced by the reaction of ammonia and hydrogen chloride are very small, when the tested packaging bag is taken out, it is easy to cause the ammonium chloride particles to be lifted up, which can easily cause damage to the operator. The above-mentioned technical solution can effectively avoid the above-mentioned situation.

[0032] like Figure 6 、 Figure 7 、 Figure 8 and Figure 11 As shown, the water tank 201 and the gas injection pipe 302 are connected via a second water connection pipe 306. The second water connection pipe 306 is provided with a one-way ventilation mechanism 600 at a position close to the gas injection pipe 302. The one-way ventilation mechanism 600 includes a one-way ventilation pipe 601, a one-way ventilation slider 602 and a return spring 603. The one-way ventilation pipe 601 is fixedly installed and extends into the gas injection pipe 302. The one-way ventilation pipe 601 is communicated with the gas injection pipe 302. The one-way ventilation slider 602 is slidably connected to the one-way ventilation pipe 302. It is connected to the one-way ventilation pipe 601, and a return spring 603 is also provided in the one-way ventilation pipe 601. One end of the return spring 603 is fixedly connected to the one-way ventilation slider 602, and the other end is fixedly connected to the inner wall of the one-way ventilation pipe 601. The end of the one-way ventilation slider 602 away from the return spring 603 is processed into a frustum shape, and the interior of the one-way ventilation pipe 601 is processed into a shape that matches the one-way ventilation slider 602. An air outlet groove 604 is provided on the side of one end of the one-way ventilation pipe 601 located in the gas injection pipe 302.

[0033] It should be noted that when a leak occurs in the chamber inside the packaging bag, hydrogen chloride and ammonia will mix and react to produce ammonium chloride crystals. At this time, a strong negative pressure will be generated in the packaging bag and the gas injection tube 302. At this time, the one-way ventilation slider 602 will be pulled by the negative pressure, and the return spring 603 will be compressed. The air outlet groove 604 will be connected to the interior of the gas injection tube 302. At this time, the water in the water tank 201 will enter the gas injection tube 302 and the packaging bag through the second water pipe 306. This can effectively dissolve the ammonium chloride crystals and effectively absorb the heat generated by hydrogen chloride and ammonia during the reaction process, preventing the packaging bag from being burned through due to heat accumulation, causing the ammonium chloride crystal particles to evaporate into the detection box 200.

[0034] like Figure 12 As shown, the pressure sensing device 400 includes a first pressure sleeve 401, which is fixedly connected to the side wall of the water tank 201 and communicates with the interior of the water tank 201. A tension sensor 402 is fixedly installed in the first pressure sleeve 401. A first negative pressure sheet 403 is provided at one end of the first pressure sleeve 401 close to the interior of the water tank 201. The first negative pressure sheet 403 and the tension sensor 402 are fixedly connected by a rod.

[0035] It should be noted that when negative pressure is generated in the test box 200 during the operation of the pressure sensing device 400, the first negative pressure sheet 403 will pull the tension sensor 402 to generate tension data so that the operator can know the sealing test result.

[0036] like Figure 13 As shown, the pressure sensing device 400 includes a second pressure sleeve 404, which is fixedly connected to the side wall of the water tank 201 and communicates with the interior of the water tank 201. The end of the second pressure sleeve 404 away from the water tank 201 is fixedly connected to a laser rangefinder 405, and a second negative pressure sheet 406 is slidably connected in the second pressure sleeve 404. A positioning spring 407 is also provided in the second pressure sleeve 404, and one end of the positioning spring 407 is fixedly connected to the second negative pressure sheet 406, and the other end is fixedly connected to the inner wall of the second pressure sleeve 404 close to the water tank 201.

[0037] It should be noted that when the pressure sensing device 400 is in operation, when negative pressure is generated in the detection box 200, the second negative pressure sheet 406 will slide in the second pressure sleeve 404, and the positioning spring 407 will be compressed. At this time, the laser rangefinder 405 will detect the position change of the second negative pressure sheet 406, thereby allowing the operator to know the sealing test results.

[0038] like Figure 3 As shown, the upper end of the detection box 200 is provided with a groove that is engaged with the cover plate 202, and the edge of the cover plate 202 is fixedly installed with an edge sealing strip. The cross-section of the edge sealing strip is L-shaped, and the edge sealing strip is fitted with the edge of the cover plate 202. The outer edge of the edge sealing strip is evenly processed with grooves.

[0039] It should be noted that the above technical solution can effectively improve the sealing performance of the detection box 200 , and the cover plate 202 can be fixedly installed on the upper end of the detection box 200 by means of bolt connection.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction or specific direction structure and operation. Therefore, they should not be understood as limiting the present invention. In addition, The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0041] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A packaging bag, characterized in that: include: A liquid storage chamber (100) for storing a liquid or semi-solid third medium; A first cooling storage cavity (101), the first cooling storage cavity (101) is arranged on the surface of the liquid storage cavity (100), and the first cooling storage cavity (101) is used to store a first medium; and A second cooling storage chamber (102), the second cooling storage chamber (102) is arranged on the surface of the liquid storage chamber (100), the second cooling storage chamber (102) is used to store a second medium, and the second cooling storage chamber (102) and the first cooling storage chamber (101) are separated by a barrier tape (103); when the barrier tape (103) is torn open, the first medium and the second medium are mixed, thereby being used to cool the third medium, and a pull-out plate (104) is provided at a position at the lower end of the barrier tape (103) at the connection between the first cooling storage chamber (101) and the second cooling storage chamber (102); Through holes for filling the medium are provided on the sides of the liquid storage chamber (100), the first cooling material storage chamber (101) and the second cooling material storage chamber (102).

2. A packaging bag sealing detection device, characterized in that: The packaging bag sealing detection device is applicable to the packaging bag according to claim 1, comprising a detection box (200), wherein a gas injection device (300) is installed in the detection box (200), and the gas injection device (300) comprises a gas injection block (301), wherein the gas injection block (301) is fixedly connected to the lower bottom plate of the detection box (200), and three gas injection pipes (302) are fixedly installed on one end of one side of the gas injection block (301) facing the detection box (200), wherein one of the gas injection pipes (302) is fixedly connected to the lower bottom plate of the detection box (200). 02) is located at an upper position of the gas injection block (301), the other two gas injection pipes (302) are located at a lower position of the gas injection block (301), and the two lower gas injection pipes (302) are located on both sides of the upper gas injection pipe (302), a pressure sensing device (400) is provided on one side wall of the detection box (200), a water tank (201) is fixedly mounted at the upper end of the detection box (200), and a cover plate (202) is fixedly installed at the upper end of the detection box (200).

3. The packaging bag sealing detection device according to claim 2, characterized in that: The gas injection pipe (302) is provided with a blocking mechanism (500), the blocking mechanism (500) comprising a blocking plate (501), a blocking hose (502), a blocking slide pipe (503) and a blocking screw sleeve (504), the blocking plate (501) being annular and fixedly mounted on one end of the gas injection pipe (302) close to the gas injection block (301), a blocking slide groove (303) being provided on the side of the gas injection pipe (302), and the blocking slide groove (303) being provided on the side of the gas injection pipe (302). 03) is slidably connected with a blocking sliding tube (503), and a blocking rubber hose (502) is sleeved on one end of the blocking sliding tube (503) away from the blocking plate (501), one end of the blocking rubber hose (502) is fixedly connected to the blocking sliding tube (503), and the other end of the blocking rubber hose (502) is fixedly connected to the blocking plate (501), and a blocking screw sleeve (504) is rotatably connected to the gas injection pipe (302), and the blocking screw sleeve (504) is threadedly connected to the blocking sliding tube (503).

4. A packaging bag sealing detection device according to claim 2 or 3, characterized in that: Each of the three gas injection pipes (302) is provided with a second water inlet (304), and the water tank (201) is provided with a first water inlet (203) corresponding to the three second water inlets (304). The corresponding first water inlets (203) and the second water inlets (304) are connected via a first water inlet pipe (305), and the two ends of the first water inlet pipe (305) are respectively threadedly connected to the first water inlet (203) and the second water inlet (304).

5. The packaging bag sealing detection device according to claim 2 or 3, characterized in that: The water tank (201) and the gas injection pipe (302) are connected via a second water connection pipe (306). The second water connection pipe (306) is provided with a one-way ventilation mechanism (600) at a position close to the gas injection pipe (302). The one-way ventilation mechanism (600) comprises a one-way ventilation pipe (601), a one-way ventilation slider (602) and a return spring (603). The one-way ventilation pipe (601) is fixedly installed and extends into the gas injection pipe (302). The one-way ventilation pipe (601) is communicated with the gas injection pipe (302). The one-way ventilation slider (602) is slidably connected to the one-way ventilation pipe (601). The one-way vent pipe (601) is connected to the one-way vent pipe (601). A return spring (603) is also provided in the one-way vent pipe (601). One end of the return spring (603) is fixedly connected to the one-way vent slider (602), and the other end is fixedly connected to the inner wall of the one-way vent pipe (601). The end of the one-way vent slider (602) away from the return spring (603) is processed into a frustum shape. The interior of the one-way vent pipe (601) is processed into a shape that matches the one-way vent slider (602). An air outlet groove (604) is provided on the side of one end of the one-way vent pipe (601) located in the gas injection pipe (302).

6. The packaging bag sealing detection device according to claim 2, characterized in that: The pressure sensing device (400) includes a first pressure sleeve (401), which is fixedly connected to the side wall of the water tank (201) and communicates with the interior of the water tank (201). A tension sensor (402) is fixedly installed in the first pressure sleeve (401). A first negative pressure sheet (403) is provided at one end of the first pressure sleeve (401) close to the interior of the water tank (201). The first negative pressure sheet (403) and the tension sensor (402) are fixedly connected via a rod.

7. The packaging bag sealing detection device according to claim 2, characterized in that: The pressure sensing device (400) comprises a second pressure sleeve (404), the second pressure sleeve (404) being fixedly connected to the side wall of the water tank (201) and communicating with the interior of the water tank (201), a laser rangefinder (405) being fixedly connected to one end of the second pressure sleeve (404) away from the water tank (201), a second negative pressure sheet (406) being slidably connected in the second pressure sleeve (404), a positioning spring (407) being further provided in the second pressure sleeve (404), one end of the positioning spring (407) being fixedly connected to the second negative pressure sheet (406), and the other end being fixedly connected to the inner wall of the second pressure sleeve (404) at one end close to the water tank (201).

8. The packaging bag sealing detection device according to claim 2, characterized in that: The upper end of the detection box (200) is provided with a groove that is engaged with the cover plate (202), and the edge of the cover plate (202) is fixedly installed with an edge sealing strip, the cross section of the edge sealing strip is L-shaped, the edge sealing strip is fitted with the edge of the cover plate (202), and the outer side of the edge sealing strip is evenly processed with grooves.

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