Karl Fischer reagent filtering device

Abstract

The utility model discloses a Karl Fischer reagent filtering device which comprises a box body, a funnel is installed in the box body, filtering test paper is arranged in the funnel, the bottom of the funnel penetrates through the box body, the top of the funnel is in threaded sealing connection with a rotating disc, a sealing disc is rotationally and hermetically connected in the rotating disc, a liquid inlet pipe is installed on the rotating disc, and a funnel groove is formed in the sealing disc. A liquid outlet pipe is hinged to the bottom of the sealing disc, the liquid inlet pipe and the liquid outlet pipe both communicate with the funnel groove, a movable frame is clamped to the funnel in a sliding and sealing mode, and the liquid outlet pipe abuts against the movable frame all the time. And a rotary driving device is mounted on the box body. The sealing disc drives the liquid outlet pipe to rotate, and the movable frame drives the liquid outlet pipe to adjust the inclination angle, so that when the liquid outlet pipe discharges liquid, the liquid can be uniformly sprayed to all parts of the filter test paper; and through cooperative arrangement of the gear transmission mechanism and the threaded rod, rotation adjustment and angle adjustment of the liquid outlet pipe can be completed through one driving device, and therefore the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of Karl Fischer reagent filtering devices, in particular to a Karl Fischer reagent filtering device. Background Art

[0002] Karl Fischer reagent is used in high-precision moisture titration measurement devices, but extremely fine impurities can easily clog the pipeline and even become flammable and explosive during subsequent use. Therefore, it needs to be filtered before use. Karl Fischer reagent is mainly a solution composed of iodine, sulfur dioxide, pyridine and methanol.

[0003] The Karl Fischer reagent filtering device in the prior art has a low utilization rate of various parts of the filter paper. The reagent liquid can only be utilized at the upper part of the filter paper after slowly rising from the bottom. Therefore, it is necessary to design a Karl Fischer reagent filtering device. Utility Model Content

[0004] Based on this, it is necessary to provide a Karl Fischer reagent filtering device to address the above technical problems.

[0005] To achieve the above-mentioned object, the present invention provides a Karl Fischer reagent filtration device, comprising a housing, a funnel mounted within the housing, a filter paper disposed within the funnel, the bottom of the funnel extending through the housing, a turntable threadedly and sealed to the top of the funnel, a sealing disk rotatably and sealed to the turntable, a liquid inlet pipe mounted on the turntable, a funnel groove disposed within the sealing disk, a liquid outlet pipe hingedly connected to the bottom of the sealing disk, both the liquid inlet pipe and the liquid outlet pipe being connected to the funnel groove, a movable frame slidably and sealedly clamped on the funnel, the liquid outlet pipe always abutting the movable frame. A rotary drive device is mounted on the housing, a threaded rod rotatably mounted on the housing, the threaded rod being threadedly connected to the movable frame, and the rotary drive device being transmission-connected to both the threaded rod and the sealing disk via a gear transmission mechanism.

[0006] Preferably, the gear transmission mechanism includes a driving wheel and a driven wheel, the driving wheel is mounted on the threaded rod, the driven wheel is mounted on the sealing disk, and the driving wheel and the driven wheel are meshed and connected.

[0007] Preferably, a wear-resistant sliding pad is installed on the movable frame.

[0008] Preferably, arc-shaped sealing blocks are installed at both ends of the movable frame, and the arc-shaped sealing blocks are slidably and sealedly connected to the inner wall of the funnel.

[0009] Preferably, a plurality of connecting columns are installed in the sealing disk.

[0010] Preferably, a rotating shaft is connected to the funnel in a rotating seal, a liquid-blocking disc is installed at one end of the rotating shaft located in the funnel, and a rotating block is installed at one end of the rotating shaft passing through the box body.

[0011] Compared with the existing technology, this technical solution has at least one of the following beneficial effects:

[0012] The sealing disk drives the liquid outlet pipe to rotate, and the movable frame drives the liquid outlet pipe to adjust the tilt angle, so that when the liquid is discharged from the liquid outlet pipe, the liquid can be evenly sprayed on all parts of the filter test paper;

[0013] By coordinating the gear transmission mechanism and the threaded rod, the rotation adjustment and angle adjustment of the liquid outlet pipe can be completed by one driving device, thereby saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front cross-sectional view of an embodiment of the present utility model;

[0015] Figure 2 This is a three-dimensional view of the interior of a funnel according to an embodiment of the present invention;

[0016] In the figure, 1. box body; 2. funnel; 3. turntable; 4. sealing disk; 5. liquid inlet pipe; 6. funnel trough; 7. liquid outlet pipe; 8. movable frame; 9. rotary drive device; 10. threaded rod; 11. driving wheel; 12. driven wheel; 13. wear-resistant sliding pad; 14. arc-shaped sealing block; 15. connecting column; 16. rotating shaft; 17. rotating block; 18. liquid-blocking disc; 21. filter paper. DETAILED DESCRIPTION

[0017] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] See also Figures 1 to 2The embodiment of the present application provides a Karl Fischer reagent filtration device, including a housing 1, a funnel 2 is installed in the housing 1, a filter paper 21 is provided in the funnel 2, the bottom of the funnel 2 passes through the housing 1, the top of the funnel 2 is threadedly sealed and connected to a turntable 3, a sealing disk 4 is rotatably sealed and connected in the turntable 3, an inlet pipe 5 is installed on the turntable 3, a funnel groove 6 is provided in the sealing disk 4, and a liquid outlet pipe 7 is hinged at the bottom of the sealing disk 4. The liquid outlet pipe 7 can be a hose with a certain hardness, such as corrosion-resistant plastic such as polytetrafluoroethylene and carbon fiber, so that it can have a certain liquid inlet pipe 5 and liquid outlet pipe 7 are connected to the funnel groove 6, a movable frame 8 is slidably sealed and clamped on the funnel 2, and the liquid outlet pipe 7 is always in contact with the movable frame 8. A rotary drive device 9 is installed on the housing 1, which can be a servo motor. A threaded rod 10 is rotatably installed on the housing 1, and the threaded rod 10 is threadedly connected to the movable frame 8. The rotary drive device 9 is transmission-connected to the threaded rod 10 and the sealing disk 4 through a gear transmission mechanism.

[0019] When the liquid is discharged, the rotary drive device 9 drives the threaded rod 10 and the sealing disk 4 to rotate through the gear transmission mechanism, so that the sealing disk 4 can drive the liquid outlet pipe 7 to rotate continuously, and the threaded rod 10 can drive the movable frame 8 to move up and down when rotating. The disc on the movable frame 8 is set so that the liquid outlet pipe 7 always contacts the disc on the movable frame 8 and rotates around it when rotating, so that when the movable frame 8 moves up and down, the liquid outlet pipe 7 can be driven to adjust the angle to a certain extent, so that when the liquid outlet pipe 7 discharges liquid, the reagent liquid can be evenly sprayed on the filter paper 21, so that the filter paper 21 can be filtered everywhere, instead of a large amount of liquid accumulating and filtering at high places. When the rotary drive device 9 is driven, it should be reversed according to the distance that the movable frame 8 can slide on the funnel 2.

[0020] In some embodiments, in order to facilitate the rotary drive device 9 to drive the threaded rod 10 and the sealing disk 4 to rotate, a gear transmission mechanism is provided including a driving wheel 11 and a driven wheel 12. The driving wheel 11 is installed on the threaded rod 10, and the driven wheel 12 is installed on the sealing disk 4. The driving wheel 11 and the driven wheel 12 are meshed and connected, and the output end of the rotary drive device 9 is transmission-connected to the threaded rod 10.

[0021] In some embodiments, in order to protect the liquid outlet pipe 7, a wear-resistant sliding pad 13 is installed on the movable frame 8. The wear-resistant sliding pad 13 can be a smooth soft pad to reduce friction.

[0022] In some embodiments, in order to achieve sealed sliding between the movable frame 8 and the funnel 2 , arc-shaped sealing blocks 14 are installed on both ends of the movable frame 8 , and the arc-shaped sealing blocks 14 are slidably and sealedly connected to the inner wall of the funnel 2 .

[0023] In some embodiments, in order to enable the slave gear 14 to drive the entire sealing disk 4 to rotate, a plurality of connecting columns 15 are installed in the sealing disk 4.

[0024] In some embodiments, to facilitate control of the rate at which the filtered liquid is discharged from the funnel 2, a rotating shaft 16 is provided on the funnel 2 in a rotatable, sealed connection. A liquid-blocking disc 18 is mounted on one end of the rotating shaft 16 located within the funnel 2. The diameter of the liquid-blocking disc 18 matches the diameter of the inner wall of the liquid outlet of the funnel 2. A rotating block 17 is mounted on one end of the rotating shaft 16 that extends through the housing 1. Rotating the rotating block 17 drives the rotating shaft 16 to rotate, thereby driving the liquid-blocking disc 18 to rotate, thereby controlling the gap between the rotating shaft 16 and the inner wall of the funnel 2 and thus controlling the liquid discharge rate.

[0025] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0026] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, and these variations and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0029] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A Karl Fischer reagent filtering device, comprising a housing (1), a funnel (2) installed in the housing (1), a filter paper (21) arranged in the funnel (2), and a bottom of the funnel (2) passing through the housing (1), characterized in that: The top of the funnel (2) is threadedly sealed and connected to a turntable (3), and a sealing disk (4) is rotatably sealed in the turntable (3). A liquid inlet pipe (5) is installed on the turntable (3), and a funnel groove (6) is provided in the sealing disk (4). A liquid outlet pipe (7) is hingedly connected to the bottom of the sealing disk (4). The liquid inlet pipe (5) and the liquid outlet pipe (7) are both connected to the funnel groove (6). A movable frame (8) is slidably sealed and clamped on the funnel (2), and the liquid outlet pipe (7) is always in contact with the movable frame (8). A rotary drive device (9) is installed on the box body (1), and a threaded rod (10) is rotatably installed on the box body (1). The threaded rod (10) is threadedly connected to the movable frame (8). The rotary drive device (9) is transmission-connected to the threaded rod (10) and the sealing disk (4) through a gear transmission mechanism.

2. The Karl Fischer reagent filtration device according to claim 1, characterized in that The gear transmission mechanism comprises a driving wheel (11) and a driven wheel (12), wherein the driving wheel (11) is mounted on the threaded rod (10), and the driven wheel (12) is mounted on the sealing disk (4), and the driving wheel (11) and the driven wheel (12) are meshed and connected.

3. The Karl Fischer reagent filtration device according to claim 1, characterized in that: A wear-resistant sliding pad (13) is installed on the movable frame (8).

4. The Karl Fischer reagent filtration device according to claim 1, characterized in that: Arc-shaped sealing blocks (14) are installed at both ends of the movable frame (8), and the arc-shaped sealing blocks (14) are connected to the inner wall of the funnel (2) in a sliding and sealing manner.

5. The Karl Fischer reagent filtering device according to claim 1, characterized in that: A plurality of connecting columns (15) are installed in the sealing disk (4).

6. The Karl Fischer reagent filtration device according to claim 1, characterized in that: The funnel (2) is rotatably sealed with a rotating shaft (16), one end of the rotating shaft (16) located inside the funnel (2) is installed with a liquid-blocking disc (18), and one end of the rotating shaft (16) passing through the box body (1) is installed with a rotating block (17).

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