CN214097069U - Medicinal hard piece gas permeability testing arrangement - Google Patents

Abstract

The utility model relates to a gas permeability test technical field discloses a medicinal hard piece gas permeability testing arrangement, including the cavity board down, the low pressure chamber air flue, the low pressure chamber solenoid valve, first pressure sensor, the hard piece groove, articulated frame, go up the cavity board, the high pressure chamber air flue, the high pressure chamber solenoid valve, second pressure sensor, support the wire way, supporting network and coupling assembling, it is articulated through articulated frame between the rear portion of cavity board down and the rear portion of last cavity board, the upper portion of cavity board is provided with the low pressure chamber, the lower part of cavity board is provided with the low pressure chamber air flue with low pressure chamber intercommunication, install the low pressure chamber solenoid valve in the low pressure chamber air flue, still be provided with first pressure sensor on the low pressure chamber lateral wall, the lower part of going up the cavity board is provided with the high pressure chamber that corresponds with the low pressure chamber. The utility model is simple in operation, can improve the leakproofness between medicinal hard piece and two pressure chambeies, provide the support to medicinal hard piece simultaneously and prevent its breakage, improve the experimental result degree of accuracy.

Description

Medicinal hard piece gas permeability testing arrangement

Technical Field

The utility model relates to a gas permeability test technical field especially relates to a medicinal hard piece gas permeability testing arrangement.

Background

The air permeability test is used for detecting the barrier of the packaging material to air and other permeants, and the air permeability test is widely used for detecting materials such as plastic films, medicinal hard sheets, composite films, high-barrier materials, sheets, metal foils and the like. The barrier property is an important performance index for examining the medicinal composite hard tablet, and plays a key role in controlling the anti-rancidity, anti-discoloration, anti-hardening, oil-water separation prevention and the like of the medicine.

In the current medicinal hard piece gas permeability check out test set use, the medicinal hard piece is directly placed in the intercommunication department in low pressure chamber and high-pressure chamber, and the gas leakage phenomenon not only appears easily, leads to the test result inaccurate, and big pressure differential still causes medicinal hard piece central authorities easily because lack the support and the breakage, influences the test result. In addition, the opening and closing of the existing medicinal hard sheet air permeability detection equipment needs to twist a plurality of knobs, so that the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's not enough, the utility model aims to provide a medicinal hard piece gas permeability testing arrangement, easy operation can improve medicinal hard piece and two leakproofness of pressing between the chamber, provides the support to medicinal hard piece simultaneously and prevents its breakage, improves the test result degree of accuracy.

The utility model discloses a following technical scheme realizes: a device for testing the permeability of a medicinal hard sheet comprises a lower cavity plate, a low-pressure cavity air passage, a low-pressure cavity electromagnetic valve, a first pressure sensor, a hard sheet groove, a hinged frame, an upper cavity plate, a high-pressure cavity air passage, a high-pressure cavity electromagnetic valve, a second pressure sensor, a supporting net groove, a supporting net and a connecting assembly, wherein the rear part of the lower cavity plate is hinged with the rear part of the upper cavity plate through the hinged frame, the upper part of the lower cavity plate is provided with the low-pressure cavity, the lower part of the lower cavity plate is provided with the low-pressure cavity air passage communicated with the low-pressure cavity, the low-pressure cavity electromagnetic valve is installed in the low-pressure cavity air passage, the side wall of the low-pressure cavity is also provided with the first pressure sensor, the lower part of the upper cavity plate is provided with the high-pressure cavity corresponding to the low-pressure cavity, the upper part of the upper cavity plate is provided with the high-pressure cavity air passage communicated with the high-pressure cavity, and the high-pressure cavity electromagnetic valve is installed in the high-pressure cavity air passage, still be provided with second pressure sensor on the high-pressure chamber lateral wall, be connected through coupling assembling between the front end of lower chamber board and the front end of last chamber board, the bottom of lower chamber board top and last chamber board is provided with the hard piece groove that the position corresponds, the upper portion of lower chamber board is located the low pressure chamber and still is provided with a support wire way outward, support wire way and the hard piece groove intercommunication on lower chamber board top, the supporting net is installed to the supporting net inslot, the top and the hard piece tank bottom level of supporting net.

Furthermore, a plurality of sealing rings corresponding to the ring positions are arranged at the top end of the lower cavity plate and the bottom end of the upper cavity plate, and the sealing rings are located in the hard sheet grooves.

Furthermore, the top end of the lower cavity plate and the bottom end of the upper cavity plate are both provided with a circle of rubber ring.

Furthermore, coupling assembling includes manual threaded rod knob and two connecting blocks, and a connecting block is fixed at the front end of cavity board down, and another connecting block is fixed at the front end of last cavity board, be connected through manual threaded rod knob between cavity board down and the last cavity board.

Furthermore, the sealing ring has 2-3 circles.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model discloses a medicinal hard piece gas permeability testing arrangement uses medicinal hard piece to keep flat in hard piece groove, the bottom of medicinal hard piece is supported by the supporting network, avoid big pressure differential to cause medicinal hard piece central authorities because lack the support and broken, improve sealed effect between the two through the rubber circle when last cavity plate contacts with lower cavity plate, seal the medicinal hard piece in the test through the multichannel sealing washer, can improve the leakproofness between medicinal hard piece and two pressure chambers, improve the experimental result degree of accuracy.

2. The utility model discloses a lower chamber board among the medicinal hard piece gas permeability testing arrangement is articulated through articulated frame with the rear portion of last chamber board, realizes being connected between chamber board and the lower chamber board through manual threaded rod knob, easy operation, convenient to use.

Drawings

Fig. 1 is a schematic structural view of the device for testing the air permeability of the medicinal hard sheet of the present invention.

In the figure: 1. a lower cavity plate; 2. a low pressure chamber; 3. a low pressure chamber air passage; 4. a low pressure chamber solenoid valve; 5. a first pressure sensor; 7. a hard sheet groove; 8. a rubber ring; 9. a seal ring; 10. a hinged frame; 11. an upper cavity plate; 12. a high pressure chamber; 13. a high pressure chamber airway; 14. a high pressure chamber solenoid valve; 15. a second pressure sensor; 21. a supporting mesh groove; 22. a support net; 23. connecting blocks; 24. a manual threaded rod knob; 25. a hard tablet for medical use.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Example 1

As shown in fig. 1, the utility model discloses a medicinal hard piece gas permeability testing device, including lower chamber plate 1, low pressure chamber 2, low pressure chamber air flue 3, low pressure chamber solenoid valve 4, first pressure sensor 5, hard piece groove 7, articulated frame 10, upper chamber plate 11, high pressure chamber 12, high pressure chamber air flue 13, high pressure chamber solenoid valve 14, second pressure sensor 15, support network groove 21, support network 22 and coupling assembling, articulate through articulated frame 10 between the rear portion of lower chamber plate 1 and the rear portion of upper chamber plate 11, the rear portion of upper chamber plate 11 can rotate around the rear portion of lower chamber plate 1 through articulated frame 10, connect through coupling assembling between the front end of lower chamber plate 1 and the front end of upper chamber plate 11, coupling assembling in this embodiment includes manual threaded rod knob 24 and two connecting blocks 23, one connecting block 23 is fixed at the front end of lower chamber plate 1, another connecting block 23 is fixed at the front end of upper chamber plate 11, the two connecting blocks 23 are connected through a manual threaded rod knob 24, and the lower cavity plate 1 and the front part of the upper cavity plate 11 are connected through the manual threaded rod knob 24 and a nut in a matching mode. The rear parts of the lower cavity plate 1 and the upper cavity plate 11 are hinged through a hinge frame 10, and the lower cavity plate 1 and the upper cavity plate 11 can be quickly opened and closed through a manual threaded rod knob 24. The top end of the lower cavity plate 1 and the bottom end of the upper cavity plate 11 are both provided with a circle of rubber ring 8, so that the sealing effect between the lower cavity plate 1 and the upper cavity plate 11 is improved, and meanwhile, the lower cavity plate 1 and the upper cavity plate 11 are in soft contact, so that the opening and closing between the lower cavity plate 1 and the upper cavity plate 11 are facilitated. The top end of the lower cavity plate 1 and the bottom end of the upper cavity plate 11 are provided with 2-3 circles of sealing rings 9 corresponding in position, and the sealing rings 9 are located in the hard sheet grooves 7 and used for sealing the medicinal hard sheets 25 in the test.

The utility model discloses a lower cavity plate 1 upper portion is provided with low-pressure chamber 2, and lower cavity plate 1's lower part is provided with low-pressure chamber air flue 3 with low-pressure chamber 2 intercommunication, installs low-pressure chamber solenoid valve 4 in the low-pressure chamber air flue 3, still is provided with first pressure sensor 5 on the 2 lateral walls in low-pressure chamber. Go up the lower part of chamber board 11 and be provided with the high pressure chamber 12 that corresponds with low pressure chamber 2, the upper portion of going up chamber board 11 is provided with the high pressure chamber air flue 13 with high pressure chamber 12 intercommunication, install high pressure chamber solenoid valve 14 in the high pressure chamber air flue 13, still be provided with second pressure sensor 15 on the high pressure chamber 12 lateral wall, first pressure sensor 5 is used for measuring the gas pressure in low pressure chamber 2, second pressure sensor 15 is used for measuring the gas pressure in high pressure chamber 12, first pressure sensor 5, second pressure sensor 15 all uses the pressure sensor who has pressure transmitter commonly used among the prior art, first pressure sensor 5, the pressure measurement scope of second pressure sensor 15 is 0 ~ 10 MPa. The top end of the lower cavity plate 1 and the bottom end of the upper cavity plate 11 are both provided with hard plate grooves 7 corresponding in position, the medicinal hard plates 25 are positioned in the hard plate grooves 7, and the thickness of the medicinal hard plates 25 is smaller than that of the hard plate grooves 7. The upper part of the lower cavity plate 1 is positioned outside the low-pressure cavity 2 and is also provided with a supporting net groove 21, the supporting net groove 21 is communicated with the hard sheet groove 7 at the top end of the lower cavity plate 1, a supporting net 22 is arranged in the supporting net groove 21, and the top of the supporting net 22 is horizontal to the bottom end of the hard sheet groove 7. During the test, the bottom of medicinal hard piece 25 is located supporting net 22, utilizes supporting net 22 to support medicinal hard piece 25, prevents that big pressure differential from causing the middle breakage of medicinal hard piece 25 to influence the experiment, and supporting net 22 in this embodiment uses 6 ~ 30 mesh metal mesh.

The utility model discloses a theory of operation: before the gas permeability test, open upper chamber plate 11, keep flat medicinal hard piece 25 in hard piece groove 7, the bottom of medicinal hard piece 25 is located the supporting network 22, then close upper chamber plate 11, lower chamber plate 1 is articulated through articulated frame 10 with the rear portion of upper chamber plate 11, fix upper chamber plate 11 in lower chamber plate 1 bottom through manual threaded rod knob 24, improve the sealed effect between the two through rubber circle 8 when upper chamber plate 11 contacts with lower chamber plate 1, seal medicinal hard piece 25 in the test through sealing washer 9. During the test of medicinal hard piece gas permeability, carry out vacuum treatment to low pressure chamber 2 through low pressure chamber air flue 3, then close low pressure chamber air flue 3, through filling into certain pressure's experimental gas in high pressure chamber 12 to high pressure chamber air flue 13 for form a invariable pressure differential at medicinal hard piece 25 both sides, gas can be under the effect of pressure differential gradient, by the infiltration of high pressure side to low pressure side, through two pressure sensor's collection, obtain each item gas permeability parameter of the sample of surveying.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a medicinal hard piece gas permeability testing arrangement which characterized in that: comprises a lower cavity plate (1), a low-pressure cavity (2), a low-pressure cavity air passage (3), a low-pressure cavity electromagnetic valve (4), a first pressure sensor (5), a hard sheet groove (7), a hinged frame (10), an upper cavity plate (11), a high-pressure cavity (12), a high-pressure cavity air passage (13), a high-pressure cavity electromagnetic valve (14), a second pressure sensor (15), a supporting net groove (21), a supporting net (22) and a connecting assembly, wherein the rear part of the lower cavity plate (1) is hinged with the rear part of the upper cavity plate (11) through the hinged frame (10), the upper part of the lower cavity plate (1) is provided with the low-pressure cavity air passage (2), the lower part of the lower cavity plate (1) is provided with the low-pressure cavity air passage (3) communicated with the low-pressure cavity (2), the low-pressure cavity electromagnetic valve (4) is installed in the low-pressure cavity air passage (3), and the side wall of the low-pressure cavity (2) is also provided with the first pressure sensor (5), the lower part of the upper cavity plate (11) is provided with a high-pressure cavity (12) corresponding to the low-pressure cavity (2), the upper part of the upper cavity plate (11) is provided with a high-pressure cavity air passage (13) communicated with the high-pressure cavity (12), a high-pressure cavity electromagnetic valve (14) is installed in the high-pressure cavity air passage (13), the side wall of the high-pressure cavity (12) is further provided with a second pressure sensor (15), the front end of the lower cavity plate (1) is connected with the front end of the upper cavity plate (11) through a connecting assembly, the top end of the lower cavity plate (1) is provided with a hard piece groove (7) corresponding to the bottom end of the upper cavity plate (11), the upper part of the lower cavity plate (1) is positioned outside the low-pressure cavity (2) and is further provided with a supporting net groove (21), the supporting net groove (21) is communicated with the hard piece groove (7) at the top end of the lower cavity plate (1), and a supporting net (22) is installed in the supporting net groove (21), the top of the supporting net (22) is horizontal to the bottom end of the hard sheet groove (7).

2. The apparatus for testing the permeability of a hard pharmaceutical tablet of claim 1, wherein: the top end of the lower cavity plate (1) and the bottom end of the upper cavity plate (11) are respectively provided with a plurality of sealing rings (9) corresponding to the ring positions, and the sealing rings (9) are positioned in the hard sheet grooves (7).

3. The permeability testing device for a hard pharmaceutical tablet according to claim 1 or 2, wherein: and the top end of the lower cavity plate (1) and the bottom end of the upper cavity plate (11) are both provided with a circle of rubber ring (8).

4. The apparatus for testing the permeability of a hard pharmaceutical tablet of claim 3, wherein: coupling assembling includes manual threaded rod knob (24) and two connecting blocks (23), and a connecting block (23) are fixed at the front end of cavity board (1) down, and another connecting block (23) are fixed at the front end of last cavity board (11), be connected through manual threaded rod knob (24) between cavity board (1) and last cavity board (11) down.

5. The apparatus for testing the permeability of a hard pharmaceutical tablet of claim 2, wherein: the sealing ring (9) has 2-3 circles.

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