Closed powder sampling device
By designing a closed powder sampling device, which combines a fixed support, sampling rod, PE bag, and closed valve sampling tube, the problem of powder sampling in a closed environment is solved, achieving efficient and safe powder sampling.
Patent Information
- Application Number
- CN202520362754.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Existing technologies cannot uniformly sample multiple powders in a closed environment, making it impossible to determine the mixing uniformity.
A closed powder sampling device was designed, comprising a fixed support, a sampling rod, a PE bag, a closed valve sampling tube, and an active valve. The closed powder sampling is achieved through O-ring self-tightening sealing and docking of the active valve with the passive valve.
This technology enables closed-loop powder sampling, improves work efficiency, reduces the risk of personnel coming into contact with powder, and ensures the airtightness of the internal and external environments.
Smart Images
Figure CN223955207U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of closed powder sampling device. BACKGROUND
[0002] Solid powder preparation is the powder preparation that is prepared after drug and excipient are smashed, sieved, mixed etc., and is widely used in pharmaceutical preparation;
[0003] The advantages are to improve drug solubility: increase drug specific surface area, improve solubility in water, facilitate patient taking, such as some poorly soluble drugs are made into powder preparation, and the dissolution rate is accelerated. Can improve drug stability: reduce drug oxidation rate and moisture content, make drug more stable, reduce the possibility of decomposition failure. Can adjust drug release rate: by controlling powder particle size and particle morphology etc., accurately control drug release rate, realize drug release in specific site or time, enhance treatment effect. It is also convenient to store and carry: compared with liquid preparation, it is easier to store and carry, reduces the risk of drug waste and pollution. Preparation process is relatively simple: generally only needs to be smashed, sieved, mixed etc., and the production cost is lower.
[0004] At present, after a plurality of powders are mixed in solid preparation powder closed environment, closed sampling cannot be carried out, and the uniformity of powder mixing cannot be determined, so the demand for closed powder sampling is proposed. Therefore, a kind of closed powder sampling device is proposed for the above problems. UTILITY MODEL CONTENT
[0005] The utility model aims at overcoming the defects of the prior art and providing a kind of closed powder sampling device, which improves work efficiency and reduces the risk of personnel contacting powder.
[0006] The technical scheme for achieving the above-mentioned object is: a kind of closed powder sampling device, including fixed support, sampling rod, PE bag, closed valve sampling pipe and active valve;
[0007] The lower end of the closed valve sampling pipe is connected to the active valve, and the upper end is connected to the sampling rod and the PE bag, the sampling rod is located in the PE bag, and the sampling rod and the PE bag are connected to the fixed support.
[0008] Preferably, a sealing groove is formed on the outer wall of the closed valve sampling pipe, and the lower end of the PE bag is connected to the sealing groove by an O-ring.
[0009] Preferably, the active valve is connected to the passive valve of the barrel.
[0010] Preferably, a pipe clamp with rubber pad is installed on the fixed support, and the sampling rod and the PE bag are connected by the pipe clamp.
[0011] Preferably, the sealing grooves are multiple; the number of O-rings corresponds to the number of sealing grooves.
[0012] The utility model discloses a beneficial effect is: this closed powder sampling device, the joint is self-tight type sealing mode, and convenient to detach; the closed valve sampling pipe and PE bag adopt the O-ring self-tight type sealing between, guarantee the sealing of inside and outside environment, and the sampling of the initiative valve and the passive valve on the material bucket is opened, can carry out the closed sampling of the powder in the material bucket through the sampling rod inside the PE bag, can realize the closed sampling function of the powder, improves the work efficiency simultaneously, reduces the risk of personnel contact powder. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is the schematic diagram of the utility model closed powder sampling device;
[0014] Fig. 2 It is the detail view of the utility model closed valve sampling pipe.
[0015] In the drawing: 1, fixed support;2, sampling rod;3, PE bag;4, closed valve sampling pipe;5, O-ring;6, initiative valve;7, sealing groove. DETAILED DESCRIPTION
[0016] The technical scheme of the utility model will be described below in conjunction with the drawings. In the description of the utility model, it needs to be explained that the orientation or position relation of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying the importance of the opposite.
[0017] The utility model will be described further below in conjunction with the drawings.
[0018] As Figs. 1-2 The utility model discloses a closed powder sampling device, including fixed support 1, sampling rod 2, PE bag 3, closed valve sampling pipe 4 and initiative valve 6;The lower end of closed valve sampling pipe 4 is connected with initiative valve 6, and initiative valve 6 is connected with the passive valve of the material bucket. The upper end is connected with sampling rod 2 and PE bag 3, and sampling rod 2 is located in PE bag 3, and sampling rod 2 and PE bag 3 are connected on fixed support 1. PE bag 3 guarantees the closure of inside and outside environment, and after closed sampling through sampling rod 2, the powder is moved to the inspection isolator to carry out bag breaking inspection.
[0019] Specifically, the outer wall of the closed valve sampling pipe 4 is provided with a sealing groove 7, and the lower end of the PE bag 3 is connected in the sealing groove 7 through an O-ring 5. The sealing groove 7 is a plurality of sealing grooves; the number of O-rings 5 corresponds to the number of sealing grooves 7. The PE bag 3 and the closed valve sampling pipe 4 are sealed by the O-ring 5, which can ensure the sealing and convenient operation.
[0020] Specifically, the fixing support 1 is provided with a pipe clamp with a rubber pad, and the sampling rod 2 and the PE bag 3 are connected through the pipe clamp.
[0021] Specifically, the sampling rod 2 in the PE bag 3 is used to sample the powder to be sampled. The actual assembly process is as follows: the active valve 6 is connected with the closed valve sampling pipe 4; the sampling rod 2 is placed in the PE bag 3, and the sampling rod 2 and the PE bag 3 are clamped on the pipe clamp of the fixing support 1; the tail end of the PE bag 3 is sleeved on the closed valve sampling pipe 4; two O-rings 5 are sleeved on the PE bag 3 and are limited in the O-ring sealing groove of the closed valve sampling pipe 4.
[0022] The closed powder sampling device has a self-tightening sealing mode at the connection, which is convenient to disassemble; the O-ring self-tightening sealing is used between the closed valve sampling pipe and the PE bag to ensure the sealing of the internal and external environments; the active valve is connected with the passive valve on the barrel to open the valve, so that the powder in the barrel can be sampled through the sampling rod in the PE bag, the closed sampling function of the powder can be realized, the work efficiency is improved, and the risk of personnel contacting the powder is reduced.
[0023] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A closed powder sampling device, characterized in that, It comprises a fixed support (1), a sampling rod (2), a PE bag (3), a closed valve sampling pipe (4) and an active valve (6); The lower end of the closed valve sampling pipe (4) is connected with the active valve (6), and the upper end is connected with the sampling rod (2) and the PE bag (3); the sampling rod (2) is located in the PE bag (3), and the sampling rod (2) and the PE bag (3) are connected on the fixed support (1).
2. The closed powder sampling device of claim 1, wherein, A sealing groove (7) is formed on the outer wall of the closed valve sampling pipe (4), and the lower end of the PE bag (3) is connected in the sealing groove (7) through an O-shaped ring (5).
3. The closed powder sampling device of claim 1, wherein, The active valve (6) is connected with a passive valve of a material bucket.
4. The closed powder sampling device of claim 1, wherein, A pipe clamp with a rubber pad is installed on the fixed support (1), and the sampling rod (2) and the PE bag (3) are connected through the pipe clamp.
5. The closed powder sampling device of claim 2, wherein, The sealing groove (7) is a plurality of sealing grooves; and the number of the O-shaped rings (5) corresponds to the number of the sealing grooves (7).