A standard filter membrane integrated manufacturing device

Abstract

The utility model discloses a standard filter membrane integrated manufacturing device in the technical field of harmful metal pollution detection in the air, aiming to solve the problems of low efficiency and easy contamination in the laboratory preparation of filter membranes in the prior art. It includes a bracket, a mask is provided on the bracket, and the mask is used to form a closed chamber with the upper surface of the bracket, and an annular movable part and an intelligent pipette are arranged in the chamber. The annular movable part is provided with a plurality of processing stations, each of which can be placed on a filter membrane box, and each of which can be moved to another adjacent processing station along a circular path, and the intelligent pipette is used to add a standard substance to the filter membrane in the filter membrane box; the utility model is used to provide a closed environment in the laboratory to form an integrated processing of the filter membrane, with high processing efficiency and can effectively reduce the possibility of contact between the filter membrane sample and the pollutant, thereby ensuring the preparation yield and efficiency of the filter membrane.

Description

Technical Field

[0001] The utility model relates to an integrated standard filter membrane manufacturing device, belonging to the technical field of harmful metal substance detection in the workplace. Background Art

[0002] The filter membranes used for the detection of harmful metal substances in the workplace are blank filter membranes that do not contain the metal to be tested. These filter membranes are usually chemically treated, calibrated and added to form standard filter membranes of known concentrations required by the laboratory. They are used for full-process quality control of the detection process to ensure the accuracy of the test results. In the laboratory environment, the filter membrane is usually prepared by manually adding standard substances to the filter membrane and then drying it. However, the manual operation method is cumbersome, not only slow, but also the manual addition method is easy to cause contamination to the sample, which will affect the storage and normal use of the filter membrane sample. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a standard filter membrane integrated manufacturing device for providing a closed environment in the laboratory to form an integrated processing of the filter membrane, which has high processing efficiency and can effectively reduce the possibility of contact between the filter membrane sample and pollutants, thereby ensuring the preparation yield and efficiency of the filter membrane.

[0004] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0005] On the one hand, it includes a bracket, on which is provided a mask, the mask is used to form a closed chamber with the upper surface of the bracket, the chamber is provided with an annular movable part and an intelligent pipette, the annular movable part is provided with a plurality of processing stations, each of which can be placed on a filter membrane box, each of which can be moved along a circular path to another adjacent processing station, the intelligent pipette is used to add standard substances to the filter membrane in the filter membrane box, and the bracket is also provided with an actuator for driving the annular movable part to perform an annular movable motion.

[0006] Specifically, the annular movable part is a disc, and the disc is provided with a plurality of placement grooves arranged along the central circumference of the disc, and the filter membrane box is placed in the placement grooves.

[0007] Specifically, the filter membrane box includes a support bottom and a box cover, and the height of the support bottom is lower than the height of the placement slot.

[0008] Specifically, one side of the mask is set to a U-shaped arc opening, and a groove is provided at the position of the U-shaped arc opening. The height position and thickness of the groove match the disc. When the disc rotates, the placement groove set on it can pass through the position of the groove and be exposed on the outside of the closed chamber formed by the mask, and there is no gap between the groove and the disc.

[0009] Specifically, a drying device is further provided in the mask, and the drying device is used to dry the filter membrane to which the standard substance is added.

[0010] Specifically, the drying device is an infrared heater, and the heating surface of the infrared heater is arranged close to the processing station.

[0011] Specifically, a plurality of protrusions are provided inside the support bottom, and the protrusions are used to prevent the filter membrane from adhering to the bottommost position of the support bottom.

[0012] Specifically, the placement groove is in the shape of a countersunk hole penetrating the disc, the filter membrane box is made of a light-transmitting material, and an optical fiber sensor is installed on the bracket or the mask, and the optical fiber sensor is arranged at a position where the countersunk hole can pass.

[0013] Specifically, the mask is provided with an air inlet, filter cotton is installed at the position of the air inlet, and the mask is also provided with an exhaust port, and the exhaust port is connected to an exhaust pipe.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model provides a circulating preparation streamline and an intelligent pipette for automatically adding standard substances to the filter membrane, and arranges the mechanisms required for the above-mentioned preparation operation in a closed environment where the mask is located, so that the preparation operation of the filter membrane can be performed in a relatively clean environment. Compared with manual operation in the laboratory, it not only has high work efficiency and is not prone to pollution, but also has a better yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a standard filter membrane manufacturing device provided by an embodiment of the utility model;

[0017] Figure 2 It is a partial cross-sectional schematic diagram of a standard filter membrane manufacturing device provided by an embodiment of the utility model;

[0018] Figure 3 It is a side view of a standard filter membrane manufacturing device provided by an embodiment of the utility model;

[0019] Figure 4 This utility model Figure 3 A cross-sectional view in the AA direction of a standard filter membrane manufacturing device provided in the embodiment;

[0020] Figure 5 This utility model Figure 4 An enlarged view of the structure at position B of the standard filter membrane manufacturing device provided in the embodiment;

[0021] Figure 6 It is a structural schematic diagram of the filter membrane box provided by an embodiment of the utility model;

[0022] Figure numerals: 1. bracket; 2. cover; 3. annular movable part; 4. actuator; 5. intelligent pipette; 6. drying device; 7. filter membrane box; 701. bottom support; 702. protrusion; 8. filter cotton; 9. exhaust pipe; 10. optical fiber sensor. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances. Embodiment 1:

[0026] An integrated standard filter membrane manufacturing device provided by an embodiment of the utility model is used to provide a closed environment in the laboratory to form an integrated processing of the filter membrane. The processing efficiency is high and the possibility of contact between the filter membrane sample and the pollutants can be effectively reduced, thereby ensuring the preparation yield and efficiency of the filter membrane. In order to realize the function of the above-mentioned device, the device is provided here, including a bracket 1. Specifically, a mask 2 is provided on the bracket 1. The mask 2 is used to form a closed chamber with the upper surface of the bracket 1. It should be noted that it is not completely closed, and at least it is necessary to provide space for loading and unloading materials. For example, a detachable sealing plate is provided on the mask 2. For the convenience of observation, a perspective window can also be opened on the sealing plate to monitor the normal working condition of the equipment. In order to realize the automatic addition of standard substances in a relatively closed environment, an annular movable part 3 and an intelligent pipette 5 are provided in the chamber, wherein the annular movable part 3 is provided with a plurality of processing stations, and a filter membrane box 7 can be placed on each processing station. For example, an annular chain can be used. The station for holding the membrane box 7 is installed on the corresponding chain link in a manner, and each processing station can be moved along the annular path to another adjacent processing station. At this time, the intelligent pipette 5 is used to add standard substances to the filter membrane in the membrane box 7. The intelligent pipette 5 belongs to the existing mechanism, so it is not explained in detail here. In order to achieve normal operation, the bracket 1 is also provided with an actuator 4 for driving the annular movable part 3 to perform an annular movable motion. For the method of using chain links, the actuator 4 should be a motor and a corresponding driving gear. Other methods are not explained here. Through the coordination between the above-mentioned mechanisms, the intelligent pipette 5 adds a standard substance to the membrane box 7 every time the processing station 7 switches its position. In order to prevent the standard substance point from being empty (that is, there is no filter membrane and there is no need to add standard substances), a corresponding detection mechanism can also be set to monitor whether there is a filter membrane on the membrane box 7, and then perform the addition of standard substances.

[0027] The utility model provides a standard filter membrane integrated manufacturing device. In order to ensure or improve the accuracy of the annular movable part 3 in conveying the filter membrane, the annular movable part 3 can be preferably set as a disc. Figure 2 As shown, the disc is provided with a plurality of placement grooves arranged along the central circumference of the disc, and the filter membrane box 7 is placed in the placement grooves. When the standard substance is added, the filter membrane box 7 is not a complete box body, and its top is set to be open. Therefore, the filter membrane box 7 needs to include a base 701 and a box cover. When the standard substance is added, the box cover should be in a position separated from the base 701 or there is no box cover. In order to prevent the base 701 from collision and displacement during transportation, the height of the base 701 can be set lower than the height of the placement groove, and the height of the groove is greater than the height of the base 701, thereby protecting the base 701.

[0028] The utility model provides a standard filter membrane integrated manufacturing device, such as Figure 1and Figure 2 As shown, considering the continuous preparation of the filter membrane, frequent opening and closing of the mask 2 will instead cause the mask 2 to lose its anti-pollution ability. In order to facilitate the direct placement of a new base 701 and the corresponding filter membrane to be prepared without opening the mask 2, one side of the mask 2 can be set as a U-shaped arc mouth, and a groove is provided at the position of the U-shaped arc mouth. The height position and thickness of the groove match the disc. When the disc rotates, the placement groove provided thereon can pass through the position of the groove and be exposed on the outside of the closed chamber formed by the mask 2, and the influence of external pollution on the base 701 and the filter membrane is reduced by providing a seamless contact between the groove and the disc. That is, the placement groove is located after the mask 2 is rotated out to the outside, and a material picking station and a material discharging station can be formed, which is convenient for manual pickup of finished products and replacement of new products to wait for the next processing. The removal of the prepared filter membrane 2 can be achieved in a relatively sealed environment without opening and closing the mask.

[0029] An embodiment of the utility model provides an integrated standard filter membrane manufacturing device. In order to further improve the function of the equipment, a drying device 6 is further provided in the mask 2. The drying device 6 is used to dry the filter membrane with the standard substance added. Since the drying step requires the evaporation of the corresponding water vapor, it is also easy to cause pollution if the drying is performed in an open environment. Therefore, the drying device 6 is directly arranged inside the mask 2, which is conducive to the preparation of the standard filter membrane in a clean environment. Since the turntable needs to be moved, the drying device 6 can be preferably an infrared heater, and the heating surface of the infrared heater can be arranged close to the processing station.

[0030] The present invention provides a standard filter membrane integrated manufacturing device. In order to prevent the filter membrane from contacting the bottom surface of the support 701 during the drying process, thereby preventing the water vapor from volatilizing through the filter membrane in time when drying occurs, it is preferred that a protrusion 702 is provided inside the support 701. The protrusion 702 is used to prevent the filter membrane from being attached to the bottom of the support 701. Figure 6 As shown, the protrusion 702 is preferably in a circular ring shape. This design can reduce the contact area with the filter membrane, thereby improving the drying efficiency, and the protrusion 702 is located at the edge of the base 701, which can effectively prevent the standard substance added to the filter membrane in the filter membrane box 7 by the intelligent pipette 5 from contacting the protrusion 702 and affecting the subsequent measurement results. The preferred size is that the inner ring (diameter is 70% of the filter membrane, generally the filter membrane diameter is 4 cm) is 0.3 cm high (the middle circle height is 0.5 cm), which is convenient for placing the filter membrane directly in the filter membrane box.

[0031] An embodiment of the utility model provides an integrated standard filter membrane manufacturing device. In order to facilitate the detection of whether there is a filter membrane at a processing station and thus decide whether to add a standard substance to this station, it is preferred to set the placement groove as a countersunk hole that penetrates the disc. Specifically, the filter membrane box 7 is set to be a light-transmitting material, and a fiber optic sensor 10 is installed on the bracket 1 or the cover 2. The fiber optic sensor 10 is set at a position that the countersunk hole can pass through. Through the above design, when the fiber optic sensor 10 detects light transmission, it means that the filter membrane has not achieved light shielding, that is, there is no filter membrane at this station. Otherwise, it means that there is a filter membrane at this processing station, and the corresponding standard substance addition action needs to be performed.

[0032] An embodiment of the utility model provides a standard filter membrane integrated manufacturing device. In order to enhance the dust-free processing environment in the mask 2, an air inlet is preferably provided on the mask 2. Specifically, a filter cotton 8 is installed at the position of the air inlet. An exhaust port is also provided on the mask 2, and the exhaust port is connected to an exhaust pipe 9. When the device is working, the exhaust pipe 9 works continuously to discharge the air in the mask 2 and inhale clean air through the filter cotton 8. The sucked air can also take away the water vapor in the mask 2, which can delay the corrosion of metal parts in the equipment.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A standard filter membrane integrated manufacturing device, characterized in that: The invention comprises a support (1), wherein a mask (2) is provided on the support (1), wherein the mask (2) is used to form a closed chamber with the upper surface of the support (1), wherein an annular movable part (3) and an intelligent pipette (5) are arranged in the chamber, wherein a plurality of processing stations are arranged on the annular movable part (3), wherein a filter membrane box (7) can be placed on each processing station, and each processing station can move along an annular path to another adjacent processing station, wherein the intelligent pipette (5) is used to add a standard substance to a filter membrane in the filter membrane box (7), and wherein an actuator (4) is used to drive the annular movable part (3) to perform an annular movable motion.

2. A standard filter membrane integrated manufacturing device according to claim 1, characterized in that: The annular movable member (3) is a disk, and the disk is provided with a plurality of placement grooves arranged in an array along the central circumference of the disk, and the filter membrane box (7) is placed in the placement grooves.

3. A standard filter membrane integrated manufacturing device according to claim 2, characterized in that: The filter membrane box (7) comprises a supporting base (701) and a box cover, and the height of the supporting base (701) is lower than the height of the placement slot.

4. A standard filter membrane integrated manufacturing device according to claim 3, characterized in that: One side of the mask (2) is provided with a U-shaped arc opening, and a slot is provided at the position of the U-shaped arc opening. The height position and thickness of the slot match those of the disc. When the disc rotates, the placement slot provided thereon can pass through the position of the slot and be exposed outside the closed chamber formed by the mask (2), and there is no gap between the slot and the disc.

5. The standard filter membrane integrated manufacturing device according to claim 1, characterized in that: A drying device (6) is also provided in the mask (2), and the drying device (6) is used to dry the filter membrane to which the standard substance is added.

6. A standard filter membrane integrated manufacturing device according to claim 5, characterized in that: The drying device (6) is an infrared heater, and the heating surface of the infrared heater is arranged close to the processing station.

7. The standard filter membrane integrated manufacturing device according to claim 3, characterized in that: A plurality of protrusions (702) are provided inside the support base (701), and the protrusions (702) are used to prevent the filter membrane from adhering to the bottommost position of the support base (701).

8. The device for manufacturing a standard filter membrane in an integrated manner according to claim 2, characterized in that: The placement groove is in the shape of a countersunk hole penetrating the disc, the filter membrane box (7) is made of a light-transmitting material, an optical fiber sensor (10) is mounted on the bracket (1) or the mask (2), and the optical fiber sensor (10) is arranged at a position where the countersunk hole can pass.

9. The standard filter membrane integrated manufacturing device according to claim 1, characterized in that: The mask (2) is provided with an air inlet, and filter cotton (8) is installed at the position of the air inlet. The mask (2) is also provided with an exhaust port, and the exhaust port is connected to an exhaust pipe (9).

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