Packaging pressure simulation test device
By designing a packaging pressure simulation test device, the repulsive adjustment and sliding rheostat of the electromagnet and permanent magnet can be adjusted to achieve air pressure in the test chamber, solving the problem of packaging bag damage caused by altitude changes and improving the stability of the packaging and transportation safety.
Patent Information
- Application Number
- CN202420381914.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-02-28
AI Technical Summary
During food transportation, changes in external pressure caused by altitude changes may cause the packaging bag to expand and explode. It is difficult for the existing technology to effectively simulate and test the impact of different pressures on the packaging, resulting in packaging damage.
A packaging pressure simulation test device is designed. Through the repulsion adjustment of the electromagnet and permanent magnet, the coordination of the sliding rheostat and the piston plate, the air pressure in the test chamber is adjusted, and different pressure environments are simulated to test the stability of the packaging.
The device can easily adjust the pressure to be strong, test the impact of different pressures on the packaging, reduce packaging damage, and improve packaging safety and transportation reliability.
Smart Images
Figure CN222144684U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure simulation testing, in particular to a packaging pressure simulation testing device. Background Art
[0002] When transporting food, it is usually necessary to first use packaging bags to divide the food to be transported into small bags and seal them before loading them for transportation. This not only ensures the quality of the food, but also facilitates loading and unloading and transportation. However, during the transportation process, the goods need to be transported to different places, and the altitude of each place is different. When the goods are transported to these places, the pressure on the packaging bag will change. When the external pressure differs too much from the pressure inside the packaging bag, it may cause the packaging bag to expand and explode. Therefore, after using the packaging bag to pack the food, the packaging bag needs to be pressure tested to prevent the packaging bag from being damaged due to changes in altitude and external pressure. Utility Model Content
[0003] The utility model aims to provide a packaging pressure simulation test device, which can conveniently change the pressure, test the influence of different pressures on packaging, and reduce the damage of packaging.
[0004] The above technical objectives of the utility model are achieved through the following technical solutions:
[0005] A packaging pressure simulation test device comprises a base, wherein a cylindrical shell is arranged at the upper end of the base, a test cavity is arranged at one end inside the cylindrical shell, an adjustment cavity is arranged inside the cylindrical shell near the test cavity, an operation port is opened on the outer side of the cylindrical shell near the test cavity, a baffle is rotatably connected at the operation port, a first electromagnet is arranged at one end inside the adjustment cavity near the test cavity, a second electromagnet is arranged at one end inside the adjustment cavity away from the test cavity, and a permanent magnet which is in a repulsive state with the first electromagnet and the second electromagnet is slidably connected inside the adjustment cavity;
[0006] The interior of the test cavity is provided with a plurality of equally spaced limit openings near one end of the regulating cavity, a piston plate is slidably connected to the interior of the test cavity, a plurality of connecting rods corresponding to the limit openings and slidably connected are equidistantly arranged between the permanent magnet and the piston plate, a protective shell is provided on the outer side of the cylindrical shell, a sliding rheostat is provided on the interior of the protective shell, a sliding opening is provided on one side of the protective shell, a slider for adjusting the resistance value of the sliding rheostat is slidably connected to the interior of the sliding opening, and a barometer is provided on the outer side of the cylindrical shell near the test cavity.
[0007] By adopting the above technical solution, after the packaging bag is sealed, the cylindrical shell is placed stably through the base, the baffle is pulled to open the operation port, and then the packaging bag is placed in the test cavity, and then the baffle is lowered to close the operation port, and then the slider is pulled to slide relative to the sliding port, and the resistance value of the sliding rheostat in the protective shell is adjusted, thereby changing the current passed through the first electromagnet and the second electromagnet, and the repulsive force between the first electromagnet and the permanent magnet and the repulsive force between the second electromagnet and the permanent magnet change accordingly. When the repulsive force between the permanent magnet and the first electromagnet and the second electromagnet is not equal, the permanent magnet can slide in the adjustment cavity, thereby driving the connecting rod to slide relative to the limit port, and the connecting rod drives the piston plate to slide in the test cavity to compress the air in the test cavity, and the degree of compression of the air in the test cavity by the piston plate is changed, thereby changing the pressure in the test cavity, and the pressure is recorded by a barometer to observe the changes of the packaging bag under different pressures.
[0008] The utility model is further configured as follows: the baffle is configured to be transparent, and a sealing ring slidably connected to the operating port is provided on one side of the baffle close to the cylindrical shell.
[0009] The utility model is further configured as follows: a power plug for providing electric power is provided at one end of the cylindrical shell.
[0010] The utility model is further configured as follows: a plurality of universal wheels are arranged at equal intervals at the lower end of the base.
[0011] The utility model is further configured as follows: the first electromagnet and the second electromagnet are both connected in series with the sliding rheostat, the first electromagnet and the second electromagnet are connected in parallel, and the sliding rheostat is adjusted so that when the current passed through the first electromagnet increases, the current passed through the second electromagnet decreases, and when the current passed through the second electromagnet decreases, the current passed through the second electromagnet increases.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] The pressure can be easily adjusted, the influence of different pressures on the package can be tested, and the damage to the package can be reduced. By adjusting the sliding rheostat, the organization of the first electromagnet and the second electromagnet is changed, thereby changing the repulsive force between the first electromagnet and the second electromagnet and the permanent magnet, allowing the permanent magnet to slide in the adjustment cavity, thereby driving the piston to slide in the test cavity, changing the degree of air compression in the test cavity, and thus changing the pressure in the test cavity. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2It is a partial cross-sectional view of the utility model;
[0016] Figure 3 The utility model is a sealing ring.
[0017] In the figure: 1. base; 2. cylindrical shell; 3. operating port; 4. baffle; 5. sealing ring; 6. test chamber; 7. adjustment chamber; 8. first electromagnet; 9. second electromagnet; 10. permanent magnet; 11. limit port; 12. connecting rod; 13. piston plate; 14. protective shell; 15. sliding port; 16. sliding block; 17. sliding rheostat; 18. barometer; 19. power plug; 20. universal wheel. DETAILED DESCRIPTION
[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0020] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] Example, see Figure 1-3A packaging pressure simulation test device includes a base 1, a cylindrical shell 2 is horizontally arranged on the upper end of the base 1, a test cavity 6 is arranged at the right end inside the cylindrical shell 2, and an adjustment cavity 7 is arranged at the left end of the test cavity 6. An operation port 3 connected to the test cavity 6 is opened on the outer side of the cylindrical shell 2, a transparent baffle 4 is rotatably connected to the upper end of the operation port 3, and a sealing ring 5 is arranged on the rear side of the baffle 4 and is slidably connected to the operation port 3 to increase air tightness. A power plug 19 for providing electricity is arranged on the left end of the cylindrical shell 2, and four universal wheels 20 are evenly spaced at the lower end of the base 1.
[0023] A first electromagnet 8 is arranged at the right end of the adjusting chamber 7, a second electromagnet 9 is arranged at the left end of the adjusting chamber 7, a permanent magnet 10 is slidably connected between the first electromagnet 8 and the second electromagnet 9 in the adjusting chamber 7, two limit openings 11 arranged at equal intervals and connected to the adjusting chamber 7 are opened at the left end of the test chamber 6, a piston plate 13 is slidably connected to the inside of the test chamber 6, two connecting rods 12 slidably connected to the corresponding limit openings 11 are arranged at equal intervals between the piston plate 13 and the permanent magnet 10, and the repulsive force between the permanent magnet 10 and the first electromagnet 8 and the second electromagnet 9 is changed to facilitate the sliding of the permanent magnet in the adjusting chamber 7, thereby adjusting the pressure in the test chamber 6, and a barometer 18 is arranged on the outside of the cylindrical shell 2 near the test chamber 6.
[0024] A protective shell 14 is horizontally arranged at the left end of the outer side of the cylindrical shell 2, and a sliding opening 15 is opened at the front end of the protective shell 14. A sliding rheostat 17 is arranged inside the cylindrical shell 2, and a slider 16 for adjusting the resistance value of the sliding rheostat 17 is slidably connected inside the sliding opening 15. The first electromagnet 8 and the second electromagnet 9 are both connected in series with the sliding rheostat 17, and the first electromagnet 8 and the second electromagnet 9 are connected in parallel. When the slider 16 slides to the right, the current passed into the first electromagnet 8 increases, and the current passed into the second electromagnet 9 decreases, and the permanent magnet can slide to the left. When the slider 16 slides to the left, the current passed into the first electromagnet 8 decreases, and the current passed into the second electromagnet 9 increases, and the permanent magnet 10 can slide to the right.
[0025] Usage: After the packaging bag is sealed, the cylindrical shell 2 is placed steadily through the base 1, the power plug 19 is connected to the power supply, and then the baffle 4 is pulled, the sealing ring 5 slides relative to the operating port 3, the operating port 3 is opened, and then the packaging bag is placed in the test cavity 6 in the cylindrical shell 2, and then the baffle 4 is lowered, the operating port 3 is closed, and the sealing ring 5 is close to the operating port 3 to increase the air tightness, and then the slider 16 is pulled to slide relative to the sliding port 15, and the resistance value of the sliding rheostat 17 in the protective shell 14 is adjusted, thereby changing the current passing through the first electromagnet 8 and the second electromagnet 9, and the repulsive force between the first electromagnet 8 and the permanent magnet 10 and the repulsive force between the second electromagnet 9 and the permanent magnet 10 change accordingly. When the slider 16 slides to the right, The current passed through the first electromagnet 8 increases, and the current passed through the second electromagnet 9 decreases, and the permanent magnet can slide to the left. When the slider 16 slides to the left, the current passed through the first electromagnet 8 decreases, and the current passed through the second electromagnet 9 increases, and the permanent magnet 10 can slide to the right, thereby driving the connecting rod 12 to slide relative to the limit opening 11. The connecting rod 12 drives the piston plate 13 to slide in the test chamber 6 to compress the air in the test chamber 6, and the degree of air compression in the test chamber 6 by the piston plate 13 is changed, thereby changing the pressure in the test chamber 6. The pressure is recorded by the barometer 18. The baffle 4 is transparent, which is convenient for observing the changes in the packaging bag under different pressures, and the universal wheel 20 can be easily moved.
[0026] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A packaging pressure simulation test device, comprising a base (1), characterized in that: A cylindrical shell (2) is provided at the upper end of the base (1); a test cavity (6) is provided at one end of the cylindrical shell (2); an adjustment cavity (7) is provided inside the cylindrical shell (2) near the test cavity (6); an operation port (3) is provided on the outer side of the cylindrical shell (2) near the test cavity (6); a baffle (4) is rotatably connected to the operation port (3); a first electromagnet (8) is provided at one end of the adjustment cavity (7) near the test cavity (6); a second electromagnet (9) is provided at one end of the adjustment cavity (7) away from the test cavity (6); and a permanent magnet (10) is slidably connected inside the adjustment cavity (7) and is in a repulsive state with the first electromagnet (8) and the second electromagnet (9); A plurality of equally spaced limiting openings (11) are provided at one end of the test chamber (6) near the regulating chamber (7); a piston plate (13) is slidably connected to the inside of the test chamber (6); a plurality of connecting rods (12) corresponding to the limiting openings (11) and slidably connected are equidistantly provided between the permanent magnet (10) and the piston plate (13); a protective shell (14) is provided on the outside of the cylindrical shell (2); a sliding rheostat (17) is provided inside the protective shell (14); a sliding opening (15) is provided on one side of the protective shell (14); a slider (16) for adjusting the resistance value of the sliding rheostat (17) is slidably connected inside the sliding opening (15); and a barometer (18) is provided on the outside of the cylindrical shell (2) near the test chamber (6).
2. A packaging pressure simulation test device according to claim 1, characterized in that: The baffle (4) is arranged to be transparent, and a sealing ring (5) which is slidably connected to the operating port (3) is arranged on a side of the baffle (4) close to the cylindrical shell (2).
3. A packaging pressure simulation test device according to claim 1, characterized in that: One end of the cylindrical housing (2) is provided with a power plug (19) for providing electric power.
4. A packaging pressure simulation test device according to claim 1, characterized in that: A plurality of universal wheels (20) are arranged at equal intervals at the lower end of the base (1).
5. A packaging pressure simulation test device according to claim 1, characterized in that: The first electromagnet (8) and the second electromagnet (9) are both connected in series with the sliding rheostat (17). The first electromagnet (8) and the second electromagnet (9) are connected in parallel. When the sliding rheostat (17) is adjusted, when the current flowing into the first electromagnet (8) increases, the current flowing into the second electromagnet (9) decreases. When the current flowing into the second electromagnet (9) decreases, the current flowing into the second electromagnet (9) increases.