CN214359105U - Be applied to screw shaft double seal device of aseptic powder feeder - Google Patents
Be applied to screw shaft double seal device of aseptic powder feeder Download PDFInfo
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- CN214359105U CN214359105U CN202022993203.9U CN202022993203U CN214359105U CN 214359105 U CN214359105 U CN 214359105U CN 202022993203 U CN202022993203 U CN 202022993203U CN 214359105 U CN214359105 U CN 214359105U
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Abstract
The utility model provides a be applied to screw rod axle double sealing device of aseptic powder feeder, the device include sealing washer A, sealing washer B, keep apart chamber and pollutant discharge hole, keep apart the chamber and lie in between powder room and the transmission case, keep apart chamber and install sealing washer A with the transmission case within a definite time, keep apart and install sealing washer B between chamber and powder room, keep apart the chamber bottom and be provided with the pollutant discharge hole. The technical problem of prior art's sealing device existence is solved, the utility model discloses guarantee the cleanness in the powder is carried, avoid polluting, carry out the filling in the environment that accords with national hygienic standard.
Description
Technical Field
The utility model relates to a be applied to screw rod axle double containment device of aseptic powder feeder belongs to powder feeder technical field.
Background
The sterile powder feeder is mainly applied to the medicine processing process and is used for conveying medicine powder. Because the product to be conveyed is in a powder shape, the aseptic operation during the conveying process must be ensured, and meanwhile, the impurity cannot be added during the conveying process, including the particles generated by friction during the movement process of a conveying device during the conveying process cannot enter the conveyed medicinal powder, because the medicinal powder requires that the doping of soluble particles cannot be more than 0.3 micron, the requirement is very strict.
The transmission shaft generates some scraps due to friction in the rotating process, and the scraps may not have any influence on general products, but is quite dangerous in the field of medicine processing, especially in the field of processing of powder injection medicines, because the powder injection medicines are input into the blood of a human body, and if fine particles enter the human body, life risks can be generated in the lung. Therefore, any situation where particulate contamination of the medicament is likely to occur must be avoided in the delivery apparatus for powdered medicaments.
The connecting part of the prior transmission structure, the transmission device and the medicine powder conveying device is provided with a sealing ring, so that the two parts are sealed and isolated, but the prior transmission structure has the following problems in practical application: 1. after pollutants in the mechanical transmission part are invaded from the sealing ring, the pollutants possibly enter the conveying device to pollute the medicines; 2. the powder particles in the conveying device are very small, the powder particles can invade from the sealing ring part to the mechanical transmission part to affect the mechanical transmission part, the powder in the part is polluted, and when the powder is invaded more and accumulated, the polluted powder in the part can invade the conveying device again to pollute the powder in the conveying device.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the technical problem that the sealing device of the prior art who mentions exists among the above-mentioned background art, provide a be applied to aseptic powder feeder's screw shaft double seal device.
The utility model provides a be applied to screw rod axle double sealing device of aseptic powder feeder, include sealing washer A, sealing washer B, keep apart chamber and pollutant discharge hole, keep apart the chamber and be located between powder room and the transmission case, keep apart and install sealing washer A between chamber and transmission case, keep apart and install sealing washer B between chamber and powder room, it is provided with the pollutant discharge hole to keep apart the chamber bottom.
Preferably, the distance between the sealing ring a and the sealing ring B is greater than 6 mm.
Be applied to screw rod axle double seal device of aseptic powder feeder's beneficial effect do: the dual seal circle A carries out aseptic seal for the first time to transmission case department, and the cavity is kept apart in the pollutant entering of isolated transmission incasement, and dual seal circle B carries out aseptic seal for the second time to keeping apart cavity and powder room department, keeps apart the pollutant of intracavity and discharges from the pollutant discharge hole, can not get into the powder room, guarantees the cleanness in the powder is carried, avoids polluting, carries out the filling in the environment that accords with national sanitation standard.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.
In the drawings:
fig. 1 is a schematic structural view of a screw shaft double sealing device applied to an aseptic powder feeder according to the present invention;
wherein, 1-powder chamber, 2-sealing ring A, 3-sealing ring B, 4-transmission device box, 5-isolation cavity, 6-pollutant discharge hole, and 7-motor.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
the first embodiment is as follows: the present embodiment is explained with reference to fig. 1. This embodiment be applied to screw shaft double sealing device of aseptic powder feeder, including sealing washer A2, sealing washer B3, keep apart cavity 5 and pollutant discharge hole 6, keep apart cavity 5 and be located between powder room 1 and the transmission case 4, keep apart and install sealing washer A2 between cavity 5 and transmission case 4, keep apart cavity 5 and install sealing washer B3 between powder room 1, it is provided with pollutant discharge hole 6 to keep apart 5 bottoms in cavity. The distance between the sealing ring A2 and the sealing ring B3 is more than 6 mm.
The working principle of the screw shaft double-sealing device applied to the sterile powder feeder is as follows:
aseptic powder feeder includes drive arrangement and conveyer, and drive arrangement is motor 7, and conveyer includes the screw propulsion pole, and the screw propulsion pole is single hob, and it sets up in powder chamber 1, drive arrangement and transmission are connected, and the two connection position is provided with keeps apart chamber 5, the drive shaft of motor and conveyer's screw propulsion pole fixed connection, and this connection structure sets up inside keeping apart chamber 5, and this connection structure department is provided with a sealing washer on drive shaft and the transfer screw respectively, and the distance between two sealing washers is greater than 6mm, should keep apart 5 lateral walls in chamber and be provided with filth discharge hole 6.
According to the scheme, the isolation cavity 5 is designed at the position where the transmission shaft is likely to generate scraps, the power input position and the power output position of the isolation cavity 5 are respectively provided with the sealing rings, the sealing ring positioned on the driving device is used for avoiding the output of impurities in the driving device, and the sealing ring positioned on one side of the conveying device is used for avoiding the leakage of medicines in the conveying device from the conveying device. The space between the two sealing rings is used for collecting the tiny scraps generated by the bearing in the rotating process, and the dirt discharge hole 6 is used for discharging the collected tiny scraps, so that the generated tiny scraps are discharged in time, and the tiny scraps are prevented from being transmitted into the conveying device.
Rotatory feed motion is made to the screw rod under the drive of motor during the powder conveying, double seal circle A2 carries out aseptic seal for the first time to transmission case 4 department, the pollutant of isolated transmission case 4 gets into keeps apart the chamber 5, double seal circle B2 keeps apart chamber 5 and powder room 1 department and carries out aseptic seal for the second time, keep apart the pollutant in the chamber 5 and discharge from pollutant discharge hole 6, can not get into powder room 1, guarantee the cleanness in the powder is carried, avoid polluting, carry out the filling in the environment that accords with national sanitation standard.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the present invention, and that any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention may be made without departing from the scope of the present invention.
Claims (2)
1. The utility model provides a be applied to screw shaft double sealing device of aseptic powder feeder, its characterized in that, includes sealing washer A (2), sealing washer B (3), keeps apart chamber (5) and pollutant discharge hole (6), keep apart chamber (5) and be located between powder room (1) and transmission case (4), keep apart and install sealing washer A (2) between chamber (5) and transmission case (4), keep apart and install sealing washer B (3) between chamber (5) and powder room (1), it is provided with pollutant discharge hole (6) to keep apart chamber (5) bottom.
2. The dual sealing device for the screw shaft applied to the aseptic powder feeder according to claim 1, wherein the distance between the sealing ring a (2) and the sealing ring B (3) is greater than 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022993203.9U CN214359105U (en) | 2020-12-14 | 2020-12-14 | Be applied to screw shaft double seal device of aseptic powder feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022993203.9U CN214359105U (en) | 2020-12-14 | 2020-12-14 | Be applied to screw shaft double seal device of aseptic powder feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214359105U true CN214359105U (en) | 2021-10-08 |
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ID=77983669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022993203.9U Active CN214359105U (en) | 2020-12-14 | 2020-12-14 | Be applied to screw shaft double seal device of aseptic powder feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214359105U (en) |
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2020
- 2020-12-14 CN CN202022993203.9U patent/CN214359105U/en active Active
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