Chemical new material product detection kinematic viscosity device

Abstract

The application discloses a chemical new material product detection kinematic viscosity device and relates to the technical field of viscosity detection. The device comprises a connecting seat and an optional communication component. The pipe body is disposable consumables which can be discarded after detection without cleaning, avoiding residues and cleaning steps. The core component can be used for a long time, and only the disposable reagent pipe needs to be replaced, which significantly reduces batch pollution and maintenance cost. The outside of the core pipe is provided with several comparison pipes in a concentric array. The comparison pipes are respectively filled with oil products with known kinematic viscosity. The steel balls in the comparison pipes and the disposable reagent pipe are all under the action of gravity and are absorbed by the magnet. The application only needs to ensure that the comparison and sampling processes are carried out at similar temperatures without high-precision constant temperature, is suitable for on-site rapid preliminary screening, reduces the complexity and cost of the equipment, has a compact structure and is easy to operate by hand, and does not need complex pipelines and temperature control, being convenient to carry and operate.

Description

Technical Field

[0001] This invention relates to the field of viscosity testing technology, specifically to a device for testing the kinematic viscosity of new chemical materials. Background Technology

[0002] When testing the kinematic viscosity of oils in the laboratory, it is necessary to select a capillary viscometer with an appropriate calibration constant (K) based on the viscosity of the oil. For samples with high viscosity, a viscometer with a large inner diameter and short length should be selected (to avoid excessively long flow time). For samples with low viscosity, a viscometer with a small inner diameter and long length should be selected (to avoid excessively short flow time; generally, a flow time ≥200s is required to ensure laminar flow). In this way, under the conditions of appropriate coefficients and measurement time, the results will be most accurate.

[0003] For example, the invention patent with publication number CN118914002A discloses a device and method for detecting the kinematic viscosity of oil. This invention patent provides a rapid measuring device that can quickly guide both field applications and precise laboratory measurements in determining the kinematic viscosity of oil. Through a simple oil comparison device, the kinematic viscosity value of the oil can be quickly determined, thus achieving the goal of identifying the oil type. However, the viscosity estimation device in the aforementioned patent document involves installing multiple test tubes and comparison tubes on a tray and manually flipping them to control the tilt angle. The range and interval of the kinematic viscosity of the oil to be tested are determined by observing the flow rate and flow process of the oil in the test tubes and comparison tubes. This device is large and inconvenient to use. Furthermore, visual observation of the oil flow rate can lead to significant deviations. The special structure of the test tubes makes them difficult to clean after containing the oil, affecting the subsequent use of the viscosity estimation device. Finally, after estimating the range and interval of the oil's viscosity, it is impossible to transfer the oil to the corresponding capillary viscometer with the appropriate "coefficient," making the operation cumbersome and inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a device for detecting the kinematic viscosity of new chemical materials, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for detecting the kinematic viscosity of a new chemical material product, comprising a connecting seat and an optional connecting component. The connecting seat has a recessed slot in the middle, and a foolproof block is fixed to the inner wall of the slot opening. A connecting tube is fixedly installed at the bottom of the slot, and a limit plate is fixedly installed at the top of the outer circle of the connecting tube. The optional connecting component is concentrically arrayed on the outer edge of the connecting seat. The optional connecting component includes grooves concentrically arrayed on the outer edge of the connecting seat. A connecting arm is axially slidably installed inside the groove, and an "L"-shaped bypass tube is opened at the top of the connecting arm. The bottom end of the connecting arm abuts and seals with the hole at the bottom of the outer circle of the connecting tube. A button is fixedly installed at the top of the connecting arm, and the bottom of the connecting arm is sleeved outside the capillary interface. The capillary interface is connected to capillary viscometers of different lengths and inner diameters. A return spring is sleeved on the outer edge of the bottom of the connecting arm, and the connecting arm is elastically connected to the bottom of the groove through the return spring.

[0006] Furthermore, a viscosity predictor is inserted into the outside of the connector, and a top plate is fixed to one end of the viscosity predictor. The top plate has a concave groove on its outer circle that matches the anti-misbehavior block.

[0007] Furthermore, the top plate has a recessed groove in the middle, and a hollow core tube is fixedly connected to the bottom of the groove.

[0008] Furthermore, the core tube is provided with a concentric array of comparison tubes, and the comparison tubes are filled with oils of known kinematic viscosity, and steel balls are embedded in the comparison tubes.

[0009] Furthermore, a synchronous release assembly is fixed to the other end of the viscosity predictor. The synchronous release assembly includes a base plate fixedly connected to the end of the core tube away from the top plate. A magnet is fixedly installed at the bottom of the inside of the base plate, and the magnet is magnetically attracted to the steel ball.

[0010] Furthermore, the synchronous release assembly also includes a magnetic shielding plate disposed at the top of the interior of the base plate. The magnetic shielding plate has a fan-shaped structure, and the rotation axis of the magnetic shielding plate is located at the outer edge of the magnet.

[0011] Furthermore, the synchronous release component also includes an arc-shaped groove formed on the magnetic shielding plate, and a wrench is fixedly connected to the outer edge of the magnetic shielding plate, with the wrench protruding outward through the side groove of the bottom plate.

[0012] Furthermore, a disposable reagent tube is inserted inside the core tube. The disposable reagent tube includes a tube body inserted inside the core tube. The tube body is filled with oil of kinematic viscosity to be measured, and an end is integrally fixed at the top of the tube body. The shape of the end fits the groove size.

[0013] Furthermore, the disposable reagent tube also includes a sphere disposed inside the end, the bottom of the sphere being elastically connected to the inner wall step of the end via a spring, and the outer circle of the sphere abutting against the tapered hole at the top of the end under the action of the spring force.

[0014] Furthermore, the disposable reagent tube also includes a cover plate that is snapped onto the end, the bottom of the cover plate being connected to a punch, and a sealing sticker being adhered to the top opening of the punch.

[0015] This invention provides a device for detecting the kinematic viscosity of new chemical materials, which has the following beneficial effects;

[0016] 1. In this application, the tube body is a disposable consumable that can be discarded after testing without cleaning, avoiding residue and cleaning steps. The core components can be used for a long time, and only the disposable reagent tubes need to be replaced, which significantly reduces batch contamination and maintenance costs. Several comparison tubes are arranged in a concentric array outside the core tube. The comparison tubes are filled with oils of known kinematic viscosity. The steel balls inside the comparison tubes and disposable reagent tubes sink to the bottom of the tubes under gravity and are attracted by magnets. This application only needs to ensure that the comparison and sample injection processes are carried out at similar temperatures, without the need for high-precision constant temperature. It is suitable for rapid on-site screening, reducing equipment complexity and cost. Moreover, the structure is compact and easy to operate by hand, without the need for complex pipelines and temperature control, making it convenient to carry and operate.

[0017] 2. When using this application, the relative magnitude of the kinematic viscosity of the oil to be tested and the known oil is determined by the falling speed of the steel ball, thereby roughly judging the range and interval of the kinematic viscosity of the oil to be tested. This scheme achieves rapid prediction and continuous quantitative measurement of viscosity through disposable consumables, pre-screening and directional sampling, which significantly reduces the risk of contamination, shortens the process and improves efficiency. It is especially suitable for seamless connection between rapid on-site screening and laboratory testing.

[0018] 3. When using this application, based on the pre-screening results, the corresponding optional connecting component is pressed to directionally send the sample into the matching capillary viscometer, realizing continuous operation from coarse screening to quantitative injection, reducing viscometer trial and error and cleaning time, and increasing daily processing capacity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembly process of the device of the present invention;

[0020] Figure 2 This is a schematic diagram of the external structure of the viscosity predictor of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the viscosity predictor of the present invention;

[0022] Figure 4 This is a schematic cross-sectional view of the disposable reagent tube of the present invention;

[0023] Figure 5 This is a schematic diagram of the external structure of the connector of the present invention;

[0024] Figure 6 This is a schematic cross-sectional view of the connector structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the optional connected component structure of the present invention.

[0026] In the diagram: 1. Connecting seat; 2. Slot; 3. Anti-foolproof block; 4. Connecting tube; 5. Limiting plate; 6. Optional connecting component; 601. Groove; 602. Connecting arm; 603. Bypass tube; 604. Button; 605. Capillary interface; 606. Return spring; 7. Viscosity predictor; 8. Top plate; 9. Anti-foolproof groove; 10. Insert groove; 11. Core tube; 12. Comparison tube; 13. Steel ball; 14. Synchronous release component; 1401. Base plate; 1402. Magnet; 1403. Magnetic shielding plate; 1404. Arc groove; 1405. Wrench; 15. Disposable reagent tube; 1501. Tube body; 1502. End; 1503. Sphere; 1504. Spring; 1505. Cover plate; 1506. Stamp; 1507. Sealing sticker. Detailed Implementation

[0027] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0028] Please see Figures 1 to 7 This invention provides a technical solution: a device for detecting the kinematic viscosity of a new chemical material product, comprising a connecting seat 1 and an optional connecting component 6. The connecting seat 1 has a recessed slot 2 in its center, and a foolproof block 3 is fixed to the inner wall of the slot 2 opening. A connecting pipe 4 is fixedly installed at the bottom of the slot 2, and a limiting plate 5 is fixedly installed at the top of the outer circle of the connecting pipe 4. The optional connecting component 6 is concentrically arrayed on the outer edge of the connecting seat 1. The optional connecting component 6 includes concentrically arrayed grooves 601 on the outer edge of the connecting seat 1, and a connecting component is axially slidably installed inside the grooves 601. The connecting arm 602 has an "L"-shaped bypass tube 603 at its top, and the bottom end of the connecting arm 602 is sealed to the hole at the bottom of the outer circle of the connecting tube 4. A button 604 is fixedly installed on the top of the connecting arm 602, and the bottom of the connecting arm 602 is sleeved on the outside of the capillary interface 605. The capillary interface 605 is connected to capillary viscometers of different lengths and inner diameters. A return spring 606 is sleeved on the outer edge of the bottom of the connecting arm 602, and the connecting arm 602 is elastically connected to the bottom of the groove 601 through the return spring 606.

[0029] The specific operation is as follows: Press the optional connecting component 6 corresponding to the comparison tube 12 with a kinematic viscosity similar to that of the oil to be tested. Driven by the button 604, the bypass tube 603 with an "L"-shaped structure at the top of the connecting arm 602 corresponds to the hole at the bottom of the outer circle of the connecting tube 4, and the oil to be tested is directionally transported to the corresponding capillary viscometer. This realizes continuous quantitative delivery of the oil after the viscosity of the oil to be tested is estimated. Based on the pre-screening results, this application presses the corresponding optional connecting component 6 to directionally send the sample into the matching capillary viscometer, realizing continuous operation from coarse screening to quantitative injection, reducing viscometer trial and error and cleaning time, and increasing daily processing capacity. This solution realizes rapid viscosity estimation and continuous quantitative measurement through disposable consumables, pre-screening and directional injection, significantly reducing the risk of contamination, shortening the process and improving efficiency. It is especially suitable for seamless connection between rapid on-site screening and laboratory testing.

[0030] Please see Figures 1 to 3 A viscosity predictor 7 is inserted into the outside of the connector 1, and a top plate 8 is fixed to one end of the viscosity predictor 7. The top plate 8 has a concave groove 9 that matches the anti-mistake block 3. A recessed groove 10 is provided in the middle of the top plate 8, and a hollow core tube 11 is fixedly connected to the bottom of the groove 10. A comparison tube 12 is arranged concentrically outside the core tube 11, and the comparison tube 12 is filled with oils of known kinematic viscosity. A steel ball 13 is also built into the comparison tube 12.

[0031] The specific operation is as follows: insert the tube body 1501 into the hole of the core tube 11 and make the end 1502 and the groove 10 interlock through transition fit, so that the tube body 1501 can be discarded after the test as a disposable consumable without cleaning, avoiding residue and cleaning steps. The core component can be used for a long time, and only the disposable reagent tube 15 needs to be replaced, which significantly reduces batch contamination and maintenance costs. Several comparison tubes 12 are arranged concentrically on the outside of the core tube 11. The comparison tubes 12 are filled with oils with known kinematic viscosity. The steel balls 13 inside the comparison tubes 12 and the disposable reagent tubes 15 sink to the bottom of the tube under the action of gravity and are attracted by the magnet 1402. This application only needs to ensure that the comparison and sample injection processes are carried out at similar temperatures, without the need for high-precision constant temperature, which is suitable for rapid on-site screening, reducing equipment complexity and cost. Moreover, the structure is compact and easy to operate by hand, without the need for complicated pipelines and temperature control, making it convenient to carry and operate.

[0032] Please see Figures 3 to 6The other end of the viscosity predictor 7 is fixed with a synchronous release assembly 14. The synchronous release assembly 14 includes a bottom plate 1401 fixedly connected to the end of the core tube 11 away from the top plate 8. A magnet 1402 is fixedly installed at the bottom inside the bottom of the bottom plate 1401, and the magnet 1402 is magnetically attracted to the steel ball 13. The synchronous release assembly 14 also includes a magnetic shielding plate 1403 set at the top inside the bottom plate 1401. The magnetic shielding plate 1403 has a fan-shaped structure, and the rotation axis of the magnetic shielding plate 1403 is located at the outer edge of the magnet 1402. The synchronous release assembly 14 also includes an arc-shaped groove 1404 opened on the magnetic shielding plate 1403. A wrench 1405 is fixedly connected to the outer edge of the magnetic shielding plate 1403, and the wrench 1405 protrudes outward through the side groove of the bottom plate 1401.

[0033] The specific operation is as follows: Invert the viscosity estimator 7 so that the tube body 1501 is inserted into the recessed slot 2 in the middle of the connector 1 with the opening facing down. During this time, the anti-misplacement block 3 on the inner wall of the slot 2 matches the anti-misplacement groove 9 on the side of the top plate 8 to prevent incorrect insertion. The connecting tube 4 at the bottom of the slot 2 squeezes the ball 1503 through the opening of the end 1502, so that the oil to be tested in the tube body 1501 is connected to the inside of the connecting tube 4. Then, the magnetic plate 1403 inside the bottom plate 1401 is moved by the wrench 1405 so that the arc groove 1404 on the magnetic plate 1403 is misaligned with the comparison tube 12 and the disposable reagent tube 15. At this time, the gravity of the steel ball 13 is greater than the magnetic force to achieve the effect of synchronous release. The relative magnitude of the kinematic viscosity of the oil to be tested and the known oil is determined by the falling speed of the steel ball 13, so as to roughly determine the range and interval of the kinematic viscosity of the oil to be tested.

[0034] Please see Figure 4 The core tube 11 is inserted with a disposable reagent tube 15. The disposable reagent tube 15 includes a tube body 1501 inserted into the core tube 11. The tube body 1501 is filled with oil of kinematic viscosity to be measured. The top of the tube body 1501 is integrally fixed with an end 1502. The shape of the end 1502 is matched with the size of the groove 10. The disposable reagent tube 15 also includes a ball 1503 disposed inside the end 1502. The bottom of the ball 1503 is elastically connected to the inner wall step of the end 1502 through a spring 1504. Under the elastic force of the spring 1504, the outer circle of the ball 1503 abuts against the tapered hole at the top of the end 1502. The disposable reagent tube 15 also includes a cover plate 1505 fastened to the outside of the end 1502. The bottom of the cover plate 1505 is connected to a punch 1506. The top opening of the punch 1506 is glued with a sealing sticker 1507.

[0035] The specific operation is as follows: tear off the sealing sticker 1507 and inject the oil to be tested for kinematic viscosity into the tube body 1501 through the poker 1506 in the middle of the cover plate 1505. Then, remove the cover plate 1505 and disengage the poker 1506 from the ball 1503 inside the end 1502. Under the elastic force of the spring 1504, the outer circle of the ball 1503 abuts against the tapered hole at the top of the end 1502 to achieve a seal at the opening. The operation is simple, the sealing performance is good, and it prevents sample leakage and volatilization.

[0036] In summary, when using this new chemical material product to test kinematic viscosity:

[0037] First, tear off the sealing sticker 1507 and inject the oil of kinematic viscosity to be tested into the tube body 1501 through the poker 1506 in the middle of the cover plate 1505. Then, remove the cover plate 1505 and disengage the poker 1506 from the ball 1503 inside the end 1502. Under the elastic force of the spring 1504, the outer circle of the ball 1503 abuts against the tapered hole at the top of the end 1502 to seal the opening. The operation is simple, the sealing performance is good, and it prevents sample leakage and volatilization.

[0038] Next, the tube body 1501 is inserted into the hole of the core tube 11 and the end 1502 is engaged with the groove 10 through a transition fit. This allows the tube body 1501 to be discarded as a disposable consumable after the test without cleaning, avoiding residue and cleaning steps. The core component can be used for a long time, and only the disposable reagent tube 15 needs to be replaced, which significantly reduces batch contamination and maintenance costs. Several comparison tubes 12 are arranged concentrically on the outside of the core tube 11. The comparison tubes 12 are filled with oils of known kinematic viscosity. The steel balls 13 inside the comparison tubes 12 and the disposable reagent tubes 15 sink to the bottom of the tube under the action of gravity and are attracted by the magnet 1402. This application only needs to ensure that the comparison and sample injection processes are carried out at similar temperatures, without the need for high-precision constant temperature. It is suitable for rapid on-site screening, reducing equipment complexity and cost. Moreover, the structure is compact and easy to operate by hand, without the need for complex pipelines and temperature control, making it convenient to carry and operate.

[0039] Secondly, the viscosity predictor 7 is inverted so that the tube body 1501 is inserted into the recessed slot 2 in the middle of the connector 1 with the opening facing down. During this time, the anti-misplacement block 3 on the inner wall of the slot 2 matches the anti-misplacement groove 9 on the side of the top plate 8 to prevent incorrect insertion. The connecting tube 4 at the bottom of the slot 2 squeezes the ball 1503 through the opening of the end 1502, so that the oil to be tested in the tube body 1501 is connected to the inside of the connecting tube 4. Then, the magnetic plate 1403 inside the bottom plate 1401 is turned by the wrench 1405, so that the arc groove 1404 on the magnetic plate 1403 is misaligned with the comparison tube 12 and the disposable reagent tube 15. At this time, the gravity of the steel ball 13 is greater than the magnetic force, so that the synchronous release effect is achieved. The relative magnitude of the kinematic viscosity of the oil to be tested and the known oil is determined by the falling speed of the steel ball 13, so as to roughly determine the range and interval of the kinematic viscosity of the oil to be tested.

[0040] Finally, pressing the optional connecting component 6 corresponding to the comparison tube 12 with a kinematic viscosity similar to that of the oil to be tested causes the "L"-shaped bypass tube 603, opened at the top of the connecting arm 602, to align with the hole at the bottom of the outer circle of the connecting tube 4 under the drive of button 604. This directs the oil to be tested to the corresponding capillary viscometer, achieving continuous quantitative delivery of the oil after viscosity estimation. Based on the pre-screening results, pressing the corresponding optional connecting component 6 directs the sample into the matching capillary viscometer, achieving continuous operation from coarse screening to quantitative injection, reducing viscometer trial and error and cleaning time, and increasing daily throughput. This solution achieves rapid viscosity estimation and continuous quantitative measurement through disposable consumables, pre-screening, and directional injection, significantly reducing the risk of contamination, shortening the process, and improving efficiency. It is especially suitable for seamless integration between on-site rapid initial screening and laboratory testing.

[0041] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A device for detecting the kinematic viscosity of a new chemical material product, comprising a connecting seat (1) and an optional connecting component (6), characterized in that, The connecting seat (1) has a recessed slot (2) in the middle, and a foolproof block (3) is fixed to the inner wall of the slot (2). A connecting pipe (4) is fixedly installed at the bottom of the slot (2), and a limit plate (5) is fixedly installed at the top of the outer circle of the connecting pipe (4). The optional connecting component (6) is concentrically arranged on the outer edge of the connecting seat (1). The optional connecting component (6) includes grooves (601) concentrically arranged on the outer edge of the connecting seat (1). A connecting arm (602) is axially slidably installed inside the groove (601), and an "L"-shaped bypass pipe (603) is opened at the top of the connecting arm (602). The bottom end of the connecting arm (602) is connected to the bottom end of the outer circle of the connecting pipe (4). The hole is sealed by contact. A button (604) is fixedly installed on the top of the connecting arm (602), and the bottom of the connecting arm (602) is sleeved on the outside of the capillary interface (605). The capillary interface (605) is connected to capillary viscometers of different lengths and inner diameters. A return spring (606) is sleeved on the outer edge of the bottom of the connecting arm (602), and the connecting arm (602) is elastically connected to the bottom of the groove (601) through the return spring (606). A viscosity estimator (7) is inserted into the outside of the connecting seat (1), and a top plate (8) is fixed at one end of the viscosity estimator (7). The top plate (8) has an anti-mistake groove (9) that matches the anti-mistake block (3) in the inner recess of the outer circle. The top plate (8) has an embedded groove in the middle. (10), and a hollow core tube (11) is fixedly connected to the bottom end of the groove (10). A comparison tube (12) is arranged concentrically outside the core tube (11), and the comparison tube (12) is filled with an oil with known kinematic viscosity. A steel ball (13) is built into the comparison tube (12). A synchronous release component (14) is fixed to the other end of the viscosity predictor (7). The synchronous release component (14) includes a bottom plate (1401) fixedly connected to the end of the core tube (11) away from the top plate (8). A magnet (1402) is fixedly installed at the bottom end of the bottom plate (1401), and the magnet (1402) and the steel ball (13) are magnetically attracted. A disposable reagent is inserted into the core tube (11). The disposable reagent tube (15) includes a tube body (1501) inserted into the core tube (11). The tube body (1501) is filled with an oil of kinematic viscosity to be measured. An end (1502) is integrally fixed at the top of the tube body (1501). The shape of the end (1502) is matched with the size of the groove (10). Pressing the optional connecting component (6) corresponding to the comparison tube (12) with a kinematic viscosity similar to that of the oil to be measured causes the bypass tube (603) with an "L" shape structure opened at the top of the connecting arm (602) to correspond to the hole at the bottom of the outer circle of the connecting tube (4) under the drive of the button (604), so that the oil to be measured is directionally transported to the corresponding capillary viscometer.

2. The device for detecting kinematic viscosity of new chemical materials according to claim 1, characterized in that, The synchronous release assembly (14) also includes a magnetic shielding plate (1403) disposed at the top of the interior of the base plate (1401). The magnetic shielding plate (1403) has a fan-shaped structure, and the rotation axis of the magnetic shielding plate (1403) is located at the outer edge of the magnet (1402).

3. The device for detecting kinematic viscosity of new chemical materials according to claim 2, characterized in that, The synchronous release component (14) also includes an arc-shaped groove (1404) opened on the magnetic shielding plate (1403), and a wrench (1405) is fixedly connected to the outer edge of the magnetic shielding plate (1403), and the wrench (1405) protrudes outward through the side groove of the bottom plate (1401).

4. The device for detecting kinematic viscosity of a new chemical material product according to claim 3, characterized in that, The disposable reagent tube (15) also includes a sphere (1503) disposed inside the end (1502). The bottom of the sphere (1503) is elastically connected to the inner wall step of the end (1502) by a spring (1504), and the outer circle of the sphere (1503) abuts against the tapered hole at the top of the end (1502) under the elastic force of the spring (1504).

5. The device for detecting kinematic viscosity of a new chemical material product according to claim 4, characterized in that, The disposable reagent tube (15) also includes a cover plate (1505) that is fastened to the end (1502). The bottom of the cover plate (1505) is connected to a punch (1506), and a sealing sticker (1507) is attached to the top opening of the punch (1506).

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