Sampling structure of filter washing and drying machine

By introducing isolators and hinged structures into the filter washing and drying machine, the problem that existing sampling structures cannot meet the sampling requirements of highly active or sterile products is solved, realizing safe and reliable sampling operations and ensuring sample quality and operator safety.

CN224435811UActive Publication Date: 2026-06-30ZHEJIANG CHENGXIN PHARMA & CHEM EQUIP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG CHENGXIN PHARMA & CHEM EQUIP
Filing Date
2025-07-21
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The sampling structure of existing filter washing and drying machines cannot meet the sampling requirements of highly active or sterile products, posing safety hazards and sample contamination risks.

Method used

A sampling structure including an isolator and a sealed connection was designed. The sampling valve and sampling bottle are located in a sealed isolation box. The operation is carried out with gloves to avoid direct contact between the product and the operator and the external environment. The hinged structure ensures that the sampling valve is always connected to the vessel body to prevent contamination.

Benefits of technology

It ensures safety and sample quality when sampling different products, avoids operator safety risks and sample contamination, and is suitable for products with toxic, harmful or sterile requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a sampling structure for a filter washing and drying machine, belonging to the technical field of filter washing and drying machines. It solves the problems of operator safety hazards and product contamination during sampling in existing filter washing and drying machines. This filter washing and drying machine includes a vessel body. The sampling structure includes a sampling valve disposed outside the vessel body, an isolator adjacent to the vessel body, and a mounting plate sealed and fixed to the vessel body. A sampling bottle is mounted on the sampling valve. The isolator includes a cuboid-shaped isolation box and gloves placed inside the isolation box. The isolation box is sealed to the mounting plate, which has a through hole. The sampling valve passes through the through hole and extends into the isolation box, and the gloves can extend to the sampling valve. This sampling structure of the filter washing and drying machine has the advantages of meeting the sampling requirements of highly viable or sterile products, ensuring sample quality while protecting the safety of the sampling operator.
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Description

Technical Field

[0001] This utility model belongs to the technical field of filter washing and drying machines, and relates to the sampling structure of filter washing and drying machines. Background Technology

[0002] A filter washing and drying machine (commonly known in the industry as a "three-in-one" device) is a closed industrial equipment that integrates filtration, washing, and drying functions. It is mainly used to process solid-liquid mixtures, achieving purification, separation, and drying of materials through a continuous process. During operation, the filter washing and drying machine requires sampling and testing of the material inside the vessel to monitor its state in real time. This necessitates the installation of a sampling structure at the side discharge manhole of the vessel.

[0003] Existing sampling structures for filter washing and drying machines, such as the plunger-type sampling valve disclosed in Chinese patent literature [Patent No.: 201520531567.1; Application Publication No.: CN204755938U], include a valve body with a flange on it. The flange is sealed to the reactor. Inside the valve body, there is a lead screw with a piston on it. An O-ring is provided on the piston. A sampling port is provided on the lower part of the valve body near the flange. A sampling tube is fixedly connected to the lower end of the sampling port. A valve is provided at the lower end of the sampling tube, and a sampling bottle is provided on the valve.

[0004] This sampling structure uses a handwheel to move a piston, opening the valve and allowing material from the reactor to enter the sampling bottle. Rotating the handwheel in the opposite direction moves the piston in the opposite direction, closing the valve and completing the sampling. However, this structure has a problematic aspect: the valve body is sealed to the reactor via a flange, and is located outside the reactor, exposed to the elements. While this poses no issue for ordinary, non-toxic, or harmless products, it can endanger operator safety and contaminate products that are toxic, harmful, or require sterility. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a sampling structure for a filter washing and drying machine. The technical problem to be solved is how to make the sampling structure meet the sampling requirements of highly active or sterile products, ensuring sample quality while protecting the safety of the sampling operator.

[0006] The objective of this utility model can be achieved through the following technical solution: a sampling structure for a filter washing and drying machine, the filter washing and drying machine including a vessel body, the sampling structure including a sampling valve disposed outside the vessel body, the sampling valve being provided with a sampling bottle, characterized in that the sampling structure further includes an isolator disposed adjacent to the vessel body and a mounting plate sealed and fixed to the vessel body, the isolator including a cuboid-shaped isolation box and a glove disposed in the isolation box, the isolation box being sealed and connected to the mounting plate, the mounting plate having a through hole, the sampling valve passing through the through hole and extending into the isolation box, the glove being able to extend to the sampling valve.

[0007] During use, the operator, wearing gloves, extends their hands into the isolation chamber, opens the sampling valve to allow the material in the vessel to enter the sampling bottle, then closes the sampling valve, unscrews the sampling bottle, and completes the sampling. Multiple samplings can be performed by repeating these steps multiple times. Both the sampling valve and sampling bottle in this sampling structure are located in a sealed isolation chamber. For toxic, hazardous, or sterile products, the operator uses gloves to open and close the sampling valve and load / unload the sampling bottle, preventing direct contact between the product and the operator or the external environment, ensuring both sample quality and operator safety. For ordinary, non-toxic, and harmless products, sampling can also be performed using the isolator to prevent contamination from external contact, allowing the sampling structure to meet the sampling requirements of different products. The mounting plate connects the vessel and the isolator, allowing the sampling valve to extend into the isolator.

[0008] In the sampling structure of the above-mentioned filter washing and drying machine, the vessel body has a sampling hole, a flange is sealed and fixed in the sampling hole, and the sampling valve is provided with a flange cover. The sampling valve is located outside the vessel body through the detachable connection between the flange cover and the flange. This structure makes the sampling valve easy to install.

[0009] In the sampling structure of the above-mentioned filter washing and drying machine, the flange cover and the flange plate are detachably connected by clamps or by bolts.

[0010] In the sampling structure of the aforementioned filter washing and drying machine, a first hinge seat is fixedly connected to the mounting plate, and a second hinge seat is fixedly connected to the sampling valve. A first hinge plate is hinged to the first hinge seat, and a second hinge plate is hinged to the second hinge seat. The first hinge plate and the second hinge plate are hinged together. The arrangement of the first hinge seat, the second hinge seat, the first hinge plate, and the second hinge plate ensures that the sampling valve is always connected to the vessel body, eliminating the need for the sampling valve to be placed on the ground and reducing the risk of contamination.

[0011] In the sampling structure of the aforementioned filter washing and drying machine, both the first and second hinge seats are U-shaped. The first hinge plate is elongated, and one end of the second hinge plate is convex (U-shaped) and the other end is concave (U-shaped). One end of the second hinge plate is embedded in the second hinge seat, and the first hinge plate is hinged to the second hinge seat. The first hinge plate is partially embedded in the other end of the second hinge plate, and the first hinge plate is hinged to the other end of the second hinge plate. This structure allows for better hinge connection between the first and second hinge seats, the first hinge plate, and the second hinge plate, enabling the sampling valve to rotate to any angle and ensuring proper installation.

[0012] Compared with the prior art, the sampling structure of the filter washing and drying machine provided by this utility model has the following advantages:

[0013] 1. This filter washing and drying machine is equipped with an isolator, which allows for the sampling of toxic, harmful, or sterile products, preventing direct contact between the product and the operator and the external environment, thus ensuring sample quality and the safety of the sampling operator.

[0014] 2. This sampling structure is connected to the vessel body through the first hinge seat, the second hinge seat, the first hinge plate, and the second hinge plate, so that the sampling valve is always connected to the vessel body, and the sampling structure does not need to be placed on the ground, making it less prone to contamination. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the isolator of this filter washing and drying machine.

[0016] Figure 2 This is a schematic diagram of the structure of the filter washing and drying machine when the sampling port is closed.

[0017] Figure 3 This is a schematic diagram of the structure when the sampling port of this filter washing and drying machine is open.

[0018] Figure 4 This is the sampling structure Figure 2 A magnified view of region A in the middle.

[0019] Figure 5 This is an exploded view of the sampling structure.

[0020] In the figure, 1 is the vessel body; 1a is the sampling port; 2 is the sampling valve; 3 is the sampling bottle; 4 isolator; 41 isolator box; 42 is the glove; 5 is the mounting plate; 51 is the through hole; 6 is the flange; 7 is the flange cover; 8 is the clamp; 9 is the first hinge seat; 10 is the second hinge seat; 11 is the first hinge plate; and 12 is the second hinge plate. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, the filter washing and drying machine includes a sampling structure, a vessel body 1, an isolator 4, and a mounting plate 5. Figure 4 , Figure 5 As shown, the sampling structure includes a sampling valve 2, a sampling bottle 3, a flange 6, and a flange cover 7.

[0023] The sampling valve 2 is located outside the vessel body 1, and a sampling bottle 3 is mounted on the sampling valve 2. Specifically, the vessel body 1 has a sampling hole 1a, and a flange 6 is sealed and fixedly connected to the sampling hole 1a. The sampling valve 2 is equipped with a flange cover 7, and the sampling valve 2 is located outside the vessel body 1 by means of a detachable connection between the flange cover 7 and the flange 6. In this embodiment, the flange cover 7 and the flange 6 are detachably connected by a clamp 8. In actual production, the flange cover 7 and the flange 6 are detachably connected by bolts.

[0024] The isolator 4 is disposed adjacent to the vessel body 1, and the mounting plate 5 is sealed and fixed to the vessel body 1. The isolator 4 includes a rectangular isolation box 41 and a glove 42 disposed in the isolation box 41. The isolation box 41 is sealed and connected to the mounting plate 5. The mounting plate 5 has a through hole 51. The sampling valve 2 passes through the through hole 51 and extends into the isolation box 41. The glove 42 can extend to the sampling valve 2.

[0025] A first hinge seat 9 is fixedly connected to the mounting plate 5, and a second hinge seat 10 is fixedly connected to the sampling valve 2. Both the first hinge seat 9 and the second hinge seat 10 are U-shaped. A first hinge plate 11 is hinged to the first hinge seat 9, and a second hinge plate 12 is hinged to the second hinge seat 10. The first hinge plate 11 and the second hinge plate 12 are hinged together. Specifically, the first hinge plate 11 is elongated, one end of the second hinge plate 12 is convex, and the other end is concave. One end of the second hinge plate 12 is embedded in the second hinge seat 10, and one end of the second hinge plate 12 is hinged to the second hinge seat 10. The first hinge plate 11 is partially embedded in the other end of the second hinge plate 12, and the first hinge plate 11 and the other end of the second hinge plate 12 are hinged together.

[0026] When in use, the operator puts their hands in gloves 42 and extends them into the isolation box 41, opens the sampling valve 2, and allows the material in the vessel 1 to enter the sampling bottle 3. Then, the sampling valve 2 is closed, the sampling bottle 3 is unscrewed, and the sampling is completed. Multiple samplings can be performed by repeating the above steps multiple times.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0028] Although this document frequently uses terms such as vessel body 1, sampling port 1a, sampling valve 2, sampling bottle 3, isolator 4, isolation box 41, glove 42, mounting plate 5, through hole 51, flange 6, flange cover 7, clamp 8, first hinge seat 9, second hinge seat 10, first hinge plate 11, and second hinge plate 12, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A sampling structure of a filter washing and drying machine, the filter washing and drying machine comprising a kettle body (1), the sampling structure comprising a sampling valve (2) arranged outside the kettle body (1), and a sampling bottle (3) arranged on the sampling valve (2), characterized in that, The sampling structure also includes an isolator (4) disposed adjacent to the vessel body (1) and a mounting plate (5) sealed and fixed to the vessel body (1). The isolator (4) includes a rectangular isolation box (41) and a glove (42) disposed in the isolation box (41). The isolation box (41) is sealed to the mounting plate (5). The mounting plate (5) has a through hole (51). The sampling valve (2) passes through the through hole (51) and extends into the isolation box (41). The glove (42) can extend to the sampling valve (2).

2. The sampling structure of the filter washing and drying machine according to claim 1, characterized in that, The vessel body (1) has a sampling hole (1a), and a flange (6) is sealed and fixed in the sampling hole (1a). The sampling valve (2) is provided with a flange cover (7). The sampling valve (2) is located outside the vessel body (1) through the detachable connection between the flange cover (7) and the flange (6).

3. The sampling structure of the filter washing and drying machine according to claim 2, characterized in that, The flange cover (7) and the flange (6) are detachably connected by a clamp (8) or the flange cover (7) and the flange (6) are detachably connected by bolts.

4. The sampling structure of the filter washing and drying machine according to claim 1, 2, or 3, characterized in that, A first hinge seat (9) is fixedly connected to the mounting plate (5), and a second hinge seat (10) is fixedly connected to the sampling valve (2). A first hinge plate (11) is hinged to the first hinge seat (9), and a second hinge plate (12) is hinged to the second hinge seat (10). The first hinge plate (11) and the second hinge plate (12) are hinged together.

5. The sampling structure of the filter washing and drying machine according to claim 4, characterized in that, Both the first hinge seat (9) and the second hinge seat (10) are U-shaped. The first hinge plate (11) is long and narrow. One end of the second hinge plate (12) is convex and the other end is concave. One end of the second hinge plate (12) is embedded in the second hinge seat (10). One end of the second hinge plate (12) is hinged to the second hinge seat (10). The first hinge plate (11) is partially embedded in the other end of the second hinge plate (12). The first hinge plate (11) is hinged to the other end of the second hinge plate (12).