Funnel device

Abstract

The utility model discloses a funnel device. The funnel device comprises a funnel body, a screen mechanism, a filter membrane and a liquid collecting hopper. The funnel body extends in the preset linear direction and is provided with a liquid collecting cavity, and the liquid collecting cavity penetrates through the funnel body in the preset linear direction. The screen mechanism is installed on one side of the funnel body in the preset linear direction, and a plurality of filtering holes communicating with the liquid collecting cavity are formed in the screen mechanism. And the filter membrane is positioned between the funnel body and the screen mechanism. The liquid collecting hopper is located on the side, away from the funnel body, of the screen mechanism and detachably connected with the funnel body, and the liquid collecting hopper is provided with a liquid outlet used for conveying filtered liquid to the outside of the funnel device. Through the arrangement, the structure of the funnel device can be simplified, and the working difficulty during suction filtration operation is reduced.

Description

Technical Field

[0001] This application relates to the field of vacuum filtration equipment technology, and in particular to a funnel device. Background Technology

[0002] In current industrial applications of manual filtration, ceramic Buchner funnels are mostly used. During filtration, filter paper needs to be soaked in water, then laid flat and pressed firmly inside the Buchner funnel. After filtration, the filter paper and material need to be removed from the funnel together. However, the filter paper is prone to tearing with repeated filtrations, causing material to fall into the funnel and become difficult to remove, resulting in material loss. Therefore, the existing funnel devices have relatively cumbersome filter paper placement and usage procedures, increasing the complexity of the filtration process. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this application is to provide a funnel device that can reduce the complexity of the filtration process.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] A funnel device includes a funnel body, a screen mechanism, a filter membrane, and a collection hopper. The funnel device is used to separate materials during filtration. The funnel body has a collection chamber. The screen mechanism is installed on one side of the funnel body and has multiple filter holes communicating with the collection chamber. The filter membrane is located between the funnel body and the screen mechanism. The collection hopper is located on the side of the screen mechanism away from the funnel body and is detachably connected to the funnel body. The collection hopper has an outlet for conveying the filtered liquid to the outside of the funnel device.

[0006] Furthermore, a fixing mechanism is installed on the liquid collecting hopper. The fixing mechanism has an installation position and a separation position. When the fixing mechanism is in the installation position, the fixing mechanism has a pre-tightening force acting on the funnel body. The pre-tightening force causes the screen mechanism connected to the funnel body to abut against the liquid collecting hopper. When the fixing mechanism is in the separation position, the fixing mechanism is separated from the funnel body.

[0007] Furthermore, the fixing mechanism includes a base, a first connecting rod, a second connecting rod, a third connecting rod, and a fixing member. The base is fixedly connected to the liquid collecting hopper. One end of the first connecting rod is rotatably connected to the base, and the other end of the first connecting rod is provided with a gripping part for driving the first connecting rod to move. One end of the second connecting rod is rotatably connected to the base. The two ends of the third connecting rod are respectively rotatably connected to the first connecting rod and the second connecting rod. The fixing member is installed at the end of the second connecting rod away from the base.

[0008] Furthermore, the rotatable connection between the first connecting rod and the base is the first connection point, and the rotatable connection between the second connecting rod and the base is the second connection point. The first connection point is located closer to the liquid collection chamber than the second connection point, and the first connection point is located closer to the liquid collection hopper than the second connection point. The fixing member is located closer to the liquid collection chamber than the first connection point.

[0009] Furthermore, the end of the second connecting rod away from the base is provided with a threaded hole, and the fastener includes a first end away from the funnel body and a second end close to the funnel body. The first end is provided with an external thread that mates with the threaded hole, and the second end is capable of having a preload force acting on the funnel body. The fastener includes an elastic element, which is installed at the second end.

[0010] Furthermore, the liquid collecting hopper includes an integrally formed hopper portion and a fixing portion. When the fixing mechanism is in the installation position, the fixing portion abuts against the screen mechanism, and the hopper portion is located on the side of the fixing portion away from the screen mechanism. The fixing mechanism is installed on the fixing portion, and the liquid outlet is located at the end of the hopper portion away from the fixing portion. The fixing portion is annular, and at least part of the fixing portion is recessed into the hopper portion to form an annular groove. When the fixing mechanism is in the installation position, at least part of the screen mechanism is located in the annular groove and abuts against the bottom of the annular groove.

[0011] Furthermore, the funnel body is a hollow cylinder, and the outer diameter surface of the funnel body protrudes in a direction away from the axis of the funnel body to form a first mounting part. The first mounting part is located at one end of the funnel body near the screen mechanism, and the screen mechanism has a second mounting part. The first mounting part and the second mounting part are detachably connected by fasteners.

[0012] Furthermore, the screen mechanism includes a filter section with filter holes, and a second mounting section is disposed around the filter section; the filter membrane is at least partially located between the filter section and the liquid collection chamber.

[0013] Furthermore, the funnel device includes a first sealing gasket located between the first mounting portion and the second mounting portion; the first sealing gasket is arranged around the axis of the funnel body.

[0014] Furthermore, the funnel device includes a second sealing gasket located between the second mounting portion and the collecting hopper; the second sealing gasket is arranged around the axis of the funnel body.

[0015] The aforementioned funnel device has a liquid collection chamber on its main body, and a filter membrane, a screen mechanism, and a liquid collection hopper are provided on one side of the funnel body. Material is fed into the funnel device from the liquid collection chamber and filtered; the filtered liquid is discharged from the liquid collection hopper. This design simplifies the structure of the funnel device and the operating procedures, reducing the complexity of the filtration process. Attached Figure Description

[0016] Figure 1This is a structural diagram of the funnel body provided in an embodiment of this application.

[0017] Figure 2 This is a structural diagram of the funnel device provided in an embodiment of this application.

[0018] Figure 3 A structural diagram of the fixing mechanism provided in the embodiments of this application.

[0019] Figure 4 A cross-sectional view of the fixed structure provided in an embodiment of this application.

[0020] Figure 5 This is a structural diagram of the screen structure provided in the embodiments of this application.

[0021] Figure 6 This is a connection structure diagram of the liquid collecting hopper provided in an embodiment of this application.

[0022] Figure 7 Provided for the embodiments of this application Figure 6 Enlarged view at point A.

[0023] Explanation of reference numerals in the attached drawings: 100, funnel device; 11, funnel body; 111, first mounting part; 112, liquid collecting chamber; 12, sieve mechanism; 121, filtration part; 122, second mounting part; 123, filter hole; 13, filter membrane; 14, liquid collecting hopper; 141, fixing part; 142, hopper part; 1421, liquid outlet; 15, fixing mechanism; 151, base; 152, first connecting rod; 1521, gripping part; 153, second connecting rod; 1531, threaded hole; 154, third connecting rod; 155, fixing element; 1551, first end; 1552, second end; 1553, elastic element; 156, first connection point; 157, second connection point; 16, first sealing gasket; 17, second sealing gasket. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0025] It should be noted that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates at least two. Unless otherwise stated, terms such as "front," "back," "left," "right," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0026] The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, this application provides a funnel device 100 for holding and filtering materials. The funnel device 100 includes a funnel body 11, a screen mechanism 12, a filter membrane 13, and a collection hopper 14. In use, the material is placed into the funnel body 11 and filtered through the screen mechanism 12 and the filter membrane 13. After filtration, the solids in the material are retained at the filter membrane 13, and the liquid is discharged from the collection hopper 14.

[0028] To clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The terms front, back, left, right, up, and down are shown to indicate the front, back, left, right, up, and down of the funnel device 100.

[0029] The funnel body 11 has a liquid collection chamber 112. A screen mechanism 12 is installed on one side of the funnel body 11, and the screen mechanism 12 has multiple filter holes 123 communicating with the liquid collection chamber 112, so that the material in the funnel body 11 can be filtered through the screen mechanism 12. A filter membrane 13 is located between the funnel body 11 and the screen mechanism 12, so that the material can be filtered sequentially through the filter membrane 13 and the screen mechanism 12, and then the liquid in the material is transported from the filter holes 123 to the liquid collection hopper 14. The liquid collection hopper 14 is located on the side of the screen mechanism 12 away from the funnel body 11 and is detachably connected to the funnel body 11, so that the assembly and disassembly of the liquid collection hopper 14 and the funnel body 11 are more convenient, and it can receive the liquid transported from the filter holes 123 in the material. The liquid collection hopper 14 has a liquid outlet 1421, which is used to transport the filtered liquid to the outside of the funnel device 100. With the above configuration, the funnel body 11, the screen mechanism 12, the filter membrane 13 and the liquid collection hopper 14 can be quickly assembled, simplifying the installation process of the funnel device 100 during filtration, thereby improving the efficiency of filtration. It can also improve the airtightness of the overall structure of the funnel device 100, thereby improving the material separation effect during filtration.

[0030] In this application, the funnel body 11 extends along a predetermined straight direction and has a liquid collecting chamber 112, and the screen mechanism 12 is installed on one side of the funnel body 11 along the predetermined straight direction. The predetermined straight direction is... Figure 1 The vertical direction of the funnel device 100.

[0031] In this application, the filter membrane 13 is placed above the screen mechanism 12. The material is loaded into the funnel body 11 through the collection chamber 112, and then contacts the filter membrane 13 for solid-liquid separation. After separation, the material passes through the screen mechanism 12 and the collection hopper 14. With the above arrangement, the material is first processed by the filter membrane 13 before passing through the other structures, which can reduce material loss and improve the material filtration effect.

[0032] As one implementation, a fixing mechanism 15 is installed on the collecting hopper 14. The fixing mechanism 15 is used to press the funnel body 11, the screen mechanism 12, and the collecting hopper 14 together. Specifically, the fixing mechanism 15 has an installation position and a separation position. When the fixing mechanism 15 is in the installation position, it has a pre-tightening force acting on the funnel body 11, which causes the screen mechanism 12 connected to the funnel body 11 to abut against the collecting hopper 14. Through the above arrangement, the fixing mechanism 15 can press the funnel body 11, the screen mechanism 12, and the collecting hopper 14 together, thereby keeping them relatively fixed and sealed to prevent air leakage from affecting the filtration effect. When the fixing mechanism 15 is in the separation position, it separates from the funnel body 11, thereby separating the funnel body 11, the screen mechanism 12, and the collecting hopper 14 together, facilitating the removal of the screen mechanism 12 and enabling rapid acquisition of the solid portion of the material. In addition, by adjusting the fixing mechanism 15 to the installation position or the separation position, the funnel body 11, the screen mechanism 12 and the liquid collection hopper 14 can be easily disassembled and assembled, thereby simplifying the process of vacuum filtration.

[0033] like Figure 4 As shown, the fixing mechanism 15 includes a base 151, a first connecting rod 152, a second connecting rod 153, a third connecting rod 154, and a fixing member 155. The base 151 is fixedly connected to the liquid collecting hopper 14, and one end of the first connecting rod 152 is rotatably connected to the base 151. The other end of the first connecting rod 152 is provided with a gripping part 1521, which is used to drive the first connecting rod 152 to move. One end of the second connecting rod 153 is rotatably connected to the base 151. The two ends of the third connecting rod 154 are respectively rotatably connected to the first connecting rod 152 and the second connecting rod 153. The fixing member 155 is used to mount the end of the second connecting rod 153 away from the base 151. This application drives the gripping part 1521 so that the first connecting rod 152 acts as a driving member, thereby causing the second connecting rod 153 and the third connecting rod 154 to act as driven members and follow the movement of the first connecting rod 152. With the above configuration, the first connecting rod 152 drives the second connecting rod 153 and the third connecting rod 154 in sequence, thereby controlling the fixing part 155 on the third connecting rod 154 to press or separate the funnel body 11, the screen mechanism 12, and the liquid collecting hopper 14. Through this configuration, the fixing mechanism 15 can be changed in position by coordinating the multiple connecting rods, thus reducing the complexity of the filtration process.

[0034] In one implementation, the base 151 is fixedly connected to the collection hopper 14. One end of the first connecting rod 152 and the second connecting rod 153 are rotatably connected to the base 151. The other end of the first connecting rod 152 is provided with a gripping part 1521. The other end of the second connecting rod 153 is equipped with a fixing member 155. One end of the third connecting rod 154 is rotatably connected between the two ends of the first connecting rod 152, and the other end of the third connecting rod 154 is rotatably connected between the two ends of the second connecting rod 153. The gripping part 1521 can be operated to include a first position and a second position. When the gripping part 1521 is in the first position, the fixing member 155 has a pre-tightening force acting on the funnel body 11. When the gripping part 1521 is in the second position, the fixing member 155 is separated from the funnel body 11. With the above settings, the gripping part 1521 can be rotated to the first position or the second position to control the movement trajectory of the first connecting rod 152, so that the fixing part 155 can press or separate the funnel body 11, the screen mechanism 12 and the liquid collection hopper 14, thereby simplifying the execution difficulty of the filtration process.

[0035] Specifically, by rotating the gripping part 1521 to the first position, the first connecting rod 152 drives the second connecting rod 153 and the third connecting rod 154 to control the fixing member 155 to press the funnel body 11. In this application, the vertical position refers to the position where the gripping part 1521 is substantially parallel to a vertical plane, which is a plane parallel to the vertical direction of the funnel device 100. When the gripping part 1521 is in the first position, rotating the gripping part 1521 upward to the vertical position causes one end of the third connecting rod 154 connected to the first connecting rod 152 to follow the upward rotation of the first connecting rod 152, thereby driving the other end of the third connecting rod 154 connected to the second connecting rod 153 to move downward, so that the second connecting rod 153 rotates downward under the action of the third connecting rod 154, and the fixing member 155 is pressed tightly against the funnel body 11 under the action of the second connecting rod 153. With the above settings, the funnel body 11, the screen mechanism 12, and the liquid collection hopper 14 are fixed and sealed, which enables the funnel device 100 to stably form a negative pressure when pumping air, and avoids air leakage from affecting the normal operation of the filtration process.

[0036] Specifically, by rotating the gripping part 1521 to the second position, the first connecting rod 152 drives the second connecting rod 153 and the third connecting rod 154 to control the fixing member 155 to separate from the funnel body 11. In this application, the second position is when the gripping part 1521 is rotated downward to a horizontal position. The horizontal position refers to the position where the gripping part 1521 is basically parallel to the horizontal plane, which is a plane perpendicular to the vertical direction of the funnel device 100. When the gripping part 1521 is rotated downward to the horizontal position, the end of the third connecting rod 154 connected to the first connecting rod 152 follows the downward rotation of the first connecting rod 152, thereby driving the other end of the third connecting rod 154 connected to the second connecting rod 153 to move upward. The second connecting rod 153 rotates upward under the action of the third connecting rod 154, causing the fixing member 155 to move away from the funnel body 11 under the action of the second connecting rod 153, so that the funnel body 11, the screen mechanism 12 and the liquid collecting hopper 14 are no longer sealed together. The above configuration allows for easy disassembly of the funnel body 11, the screen mechanism 12, and the collection hopper 14, facilitating the collection of materials retained on the filter membrane 13 and the screen mechanism 12, thus reducing the difficulty of material collection. In one implementation, the rotatable connection point between the first connecting rod 152 and the base 151 is the first connection point 156, and the rotatable connection point between the second connecting rod 153 and the base 151 is the second connection point 157. When the gripping part 1521 is rotated, the first connecting rod 152 rotates around the first connection point 156 as its rotation center, and the second connecting rod 153 rotates around the second connection point 157 as its rotation center. Both the first connection point 156 and the second connection point 157 are fixed to the base 151, allowing both the first connecting rod 152 and the second connecting rod 153 to rotate around the base 151. With the above configuration, the first link 152, the second link 153, and the third link 154 can move along a fixed trajectory, so that the fixing mechanism 15 applies a preload at a fixed position, thereby improving the stability of the fixing mechanism 15 during use.

[0037] Specifically, the first connection point 156 is positioned closer to the collection chamber 112 than the second connection point 157, and the first connection point 156 is positioned closer to the collection hopper 14 than the second connection point 157. The fixing member 155 is positioned closer to the collection chamber 112 than the first connection point 156. When the first connecting rod 152 is in the first position, it remains vertical, preventing interference between the first connecting rod 152 and the funnel body 11. When the first connecting rod 152 is in the second position, it rotates to a horizontal position away from the funnel body 11, preventing interference between the first connecting rod 152 and the funnel body. These features ensure that the first connecting rod 152 does not interfere with the funnel body 11 in either the first or second position, guaranteeing the normal operation of the filtration process.

[0038] like Figure 5As shown, the second connecting rod 153 has a threaded hole 1531 at the end away from the base 151. The fixing member 155 includes a first end 1551 away from the funnel body 11 and a second end 1552 close to the funnel body 11. The first end 1551 has an external thread that mates with the threaded hole 1531, and the second end 1552 can exert a pre-tightening force on the funnel body 11. Through the interaction of the external thread and the threaded hole 1531, the height of the fixing member 155 can be adjusted in the vertical direction of the funnel device 100. This prevents the funnel body 11 from being too high, which would prevent the fixing member 155 from being unable to be pressed down to the first position during the clamping process; it also prevents the funnel body 11 from being too low, which would prevent the fixing member 155 from being unable to clamp the funnel body 11, the screen mechanism 12, and the liquid collecting hopper 14 when it is in the first position. In addition, the way the threaded hole 1531 and the external thread are engaged can also facilitate precise adjustment of the position of the fixing member 155 on the second connecting rod 153. Through the above settings, the fixing mechanism 15 can be adapted to funnel bodies 11 of different heights, improving the compatibility of the fixing mechanism 15 and further expanding the application scenarios of the funnel device 100; it can also ensure that the fixing member 155 can provide a stable pre-tightening force to the funnel body 11 when pressing the funnel body 11 of different heights.

[0039] Specifically, the fixing member 155 includes an elastic member 1553, which provides cushioning when the fixing mechanism 15 contacts the funnel body 11. The elastic member 1553 is installed at the second end 1552. With the above arrangement, direct contact between the relatively hard second end 1552 and the funnel body 11 can be avoided, thereby preventing the fixing member 155 from damaging the funnel body 11 during the pressing process, thus extending the service life of the funnel device 100.

[0040] like Figure 6 As shown, the liquid collecting hopper 14 includes an integrally formed hopper portion 142 and a fixing portion 141. When the fixing mechanism 15 is in the installation position, the fixing portion 141 abuts against the screen mechanism 12, and the hopper portion 142 is located on the side of the fixing portion 141 away from the screen mechanism 12. The fixing mechanism 15 is installed on the fixing portion 141, and the liquid outlet 1421 is located at the end of the hopper portion 142 away from the fixing portion 141. With the above arrangement, the material is loaded into the funnel device from the funnel body 11, filtered by the screen mechanism 12, and the separated liquid is discharged from the liquid outlet 1421, thus completing the solid-liquid separation of the material.

[0041] Specifically, the fixing part 141 is annular, and at least part of the fixing part 141 is recessed into the hopper part 142 to form an annular groove. When the fixing mechanism 15 is in the installation position, the screen mechanism 12 is at least partially located in the annular groove and abuts against the bottom of the annular groove. The bottom end of the screen mechanism 12 is provided with a protrusion that matches the shape of the annular groove of the fixing part 141. When the fixing mechanism 15 is pressed, the screen mechanism 12 and the liquid collecting hopper 14 can be fitted together to form a sealed space, thereby improving the sealing performance between the screen mechanism 12 and the liquid collecting hopper 14. At the same time, during filtration, the above arrangement can also prevent gaps at the connection between the screen mechanism 12 and the liquid collecting hopper 14, ensuring the formation of a negative pressure space, thereby preventing the material from being unable to be completely separated, and thus improving the stability of the filtration operation of the funnel device 100.

[0042] In one implementation, the funnel body 11 is a hollow cylinder. The outer diameter surface of the funnel body 11 protrudes in a direction away from its axis to form a first mounting portion 111. The first mounting portion 111 is located at the end of the funnel body 11 near the screen mechanism 12. The screen mechanism 12 has a second mounting portion 122. The first mounting portion 111 and the second mounting portion 122 are detachably connected by fasteners. With this configuration, the steps required to separate the funnel body 11 and the screen mechanism 12 can be simplified when filtration is complete, thus facilitating the removal of material from the screen mechanism 12. During filtration, the first mounting portion 111 and the second mounting portion 122 are first fixed by fasteners and then further tightened by the fixing mechanism 15, achieving a complete seal between the funnel body 11 and the screen mechanism 12. This ensures the stability of the negative pressure space during filtration and improves the filtration effect of the funnel device.

[0043] In one implementation, the screen mechanism 12 includes a filter section 121 with filter holes 123, a second mounting section 122 surrounding the filter section 121, and a filter membrane 13 at least partially located between the filter section 121 and the liquid collection chamber 112. This arrangement allows materials to be filtered through both the filter section 121 and the filter membrane 13, achieving dual filtration and separating the solid and liquid components of the material as much as possible, thereby improving the filtration effect during vacuum filtration.

[0044] like Figure 7As shown, the funnel device 100 includes a first sealing gasket 16, which is used to fill gaps at the connection. The first sealing gasket 16 is located between the first mounting portion 111 and the second mounting portion 122, and is arranged around the axis of the funnel body 11. With the above arrangement, when the first mounting portion 111 and the second mounting portion 122 are fixed by fasteners, the first sealing gasket 16 fills the gap when the first mounting portion 111 and the second mounting portion 122 are in contact, realizing a sealed connection between the funnel body 11 and the screen mechanism 12, thereby ensuring that the space inside the funnel device 100 remains under negative pressure during filtration, thus meeting the filtration requirements.

[0045] In one implementation, the funnel device 100 includes a second sealing gasket 17, which is used to fill the gaps existing between the connections. The second sealing gasket 17 is located between the second mounting portion 122 and the collecting hopper 14, and is arranged around the axis of the funnel body 11. With the above arrangement, when the fixing mechanism 15 applies a pre-tightening force to the funnel body 11, the screen mechanism 12, and the collecting hopper 14, the second sealing gasket 17 can fill the gaps existing between the second mounting portion 122 and the collecting hopper 14, realizing a sealed connection between the screen mechanism 12 and the collecting hopper 14. This ensures that a negative pressure space is generated between the screen mechanism 12 and the collecting hopper 14 during filtration, thereby maintaining normal filtration operation.

[0046] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A funnel device (100) for vacuum filtration, characterized in that, The funnel device (100) includes: The funnel body (11) has a liquid collecting cavity (112); A sieve mechanism (12) is installed on one side of the funnel body (11), and the sieve mechanism (12) has a plurality of filter holes (123) communicating with the liquid collection chamber (112); a filter membrane (13) is located between the funnel body (11) and the sieve mechanism (12); and The liquid collecting hopper (14) is located on the side of the screen mechanism (12) away from the funnel body (11) and is detachably connected to the funnel body (11). The liquid collecting hopper (14) has an outlet (1421) for conveying the filtered liquid to the outside of the funnel device (100).

2. The funnel device (100) according to claim 1, characterized in that, A fixing mechanism (15) is installed on the liquid collecting hopper (14). The fixing mechanism (15) has an installation position and a separation position. When the fixing mechanism (15) is in the installation position, the fixing mechanism (15) has a pre-tightening force acting on the funnel body (11). The pre-tightening force causes the screen mechanism (12) connected to the funnel body (11) to abut against the liquid collecting hopper (14). When the fixing mechanism (15) is in the separation position, the fixing mechanism (15) separates from the funnel body (11).

3. The funnel device (100) according to claim 2, characterized in that, The fixing mechanism (15) includes: The base (151) is fixedly connected to the liquid collecting hopper (14). The first link (152) has one end rotatably connected to the base (151) and the other end of the first link (152) is provided with a grip (1521) for driving the first link (152) to move. The second link (153) is rotatably connected to the base (151) at one end; A third link (154), the two ends of which are rotatably connected to the first link (152) and the second link (153) respectively; and a fixing member (155), which is installed on the end of the second link (153) away from the base (151).

4. The funnel device (100) according to claim 3, characterized in that, The first connecting rod (152) is rotatably connected to the base (151) at the first connection point (156), and the second connecting rod (153) is rotatably connected to the base (151) at the second connection point (157). The first connection point (156) is closer to the liquid collection chamber (112) than the second connection point (157), and the first connection point (156) is closer to the liquid collection hopper (14) than the second connection point (157). The fixing member (155) is closer to the liquid collection chamber (112) than the first connection point (156).

5. The funnel device (100) according to claim 3, characterized in that, The second connecting rod (153) has a threaded hole (1531) at one end away from the base (151). The fastener (155) includes a first end (1551) away from the funnel body (11) and a second end (1552) close to the funnel body (11). The first end (1551) has an external thread that mates with the threaded hole (1531), and the second end (1552) can have a preload force acting on the funnel body (11). The fastener (155) includes an elastic element (1553) which is mounted on the second end (1552).

6. The funnel device (100) according to claim 2, characterized in that, The liquid collecting hopper (14) includes an integrally formed hopper part (142) and a fixing part (141). When the fixing mechanism (15) is in the installation position, the fixing part (141) abuts against the screen mechanism (12), and the hopper part (142) is located on the side of the fixing part (141) away from the screen mechanism (12). The fixing mechanism (15) is installed on the fixing part (141), and the liquid outlet (1421) is located at the end of the bucket part (142) away from the fixing part (141); The fixing part (141) is annular, and the fixing part (141) is at least partially recessed into the bucket part (142) to form an annular groove. When the fixing mechanism (15) is in the installation position, the screen mechanism (12) is at least partially located in the annular groove and abuts against the bottom of the annular groove.

7. The funnel device (100) according to claim 1, characterized in that, The funnel body (11) is a hollow cylinder. The outer diameter surface of the funnel body (11) protrudes in a direction away from the axis of the funnel body (11) to form a first mounting part (111). The first mounting part (111) is located at one end of the funnel body (11) near the screen mechanism (12). The screen mechanism (12) forms a second mounting part (122). The first mounting part (111) and the second mounting part (122) are detachably connected by fasteners.

8. The funnel device (100) according to claim 7, characterized in that, The screen mechanism (12) includes a filter section (121) with the filter holes (123) and the second mounting section (122) is arranged around the filter section (121); The filter membrane (13) is at least partially located between the filter section (121) and the collection chamber (112).

9. The funnel device (100) according to claim 8, characterized in that, The funnel device (100) includes a first sealing gasket (16) located between the first mounting portion (111) and the second mounting portion (122); The first sealing gasket (16) is arranged around the axis of the funnel body (11).

10. The funnel device (100) according to claim 8, characterized in that, The funnel device (100) includes a second sealing gasket (17), which is located between the second mounting part (122) and the liquid collecting hopper (14); The second sealing gasket (17) is arranged around the axis of the funnel body (11).

Images