Buchner funnel with filter paper cylinder

Abstract

The utility model relates to the technical field of auxiliary materials of test equipment, and discloses a Buchner funnel with a filter paper cylinder, which comprises a funnel body, a filter paper cylinder body is arranged on the inner side of the funnel body, and the filter paper cylinder body comprises a base, a limiting plate and an adjusting plate. The outer side of a filter paper material is limited through the limiting plate and the adjusting plate, so that the filter paper material is folded along the folding cross section and is convenient to use, the partition plate is arranged on the bottom side of the base, the bottom of the folded filter paper material can be supported, and the situation that the filter effect is reduced due to the fact that the filter paper material is attached to filter holes in the funnel body is avoided; furthermore, through holes are formed in the top sides of the partition plates, the problem that the filtering effect of the filter paper material is reduced due to blockage of the holes is further avoided, the filter paper cylinder body can be directly taken out by directly pulling the grip after use, the filter paper material is conveniently replaced, filter residues are conveniently taken out, and use is convenient and fast; the filter paper material taking-out difficulty can be effectively reduced, and funnel body pollution is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of test equipment auxiliary materials, in particular to a buechner funnel with filter paper cylinder. BACKGROUND

[0002] When solid-liquid separation is carried out on a sample by using a buechner funnel filtration device in a laboratory, the experimenter only needs to lay the purchased corresponding size of the circular qualitative filter paper on the bottom of the buechner funnel, and then pour the turbid sample into the buechner funnel for filtration.

[0003] According to the search, the Chinese patent document, the announcement number: CN209405790U, disclosed a buechner funnel with filter paper cylinder, by adopting the closed bottom, is arranged in the funnel in the air, has the high side surface of the user, effectively avoids the existing filter paper to take the slag difficult problem, in addition, the utility model discloses the bottom surface of the air arrangement solves the existing filter paper and the buechner funnel bottom direct adhesion and easily rubs the technical problem of damage filter paper or sample leakage with solvent, better guarantee the accuracy of experimental determination, reduces the experimental error.But in the process of use, when the filter paper cylinder is installed in the funnel after the filter paper is folded, the filter paper cylinder needs to be manually taken out after filtration, which is easy to cause the filter paper cylinder to be attached to the inner wall of the funnel, causing trouble to take out, and it is easy to cause the filter residue to fall into the funnel, resulting in the need to clean up before continuing to use, which is more troublesome and time-consuming, and although the air function can be achieved, but long-time filtration is also easy to cause the filter paper cylinder bottom to be attached to the funnel, resulting in reduced filtration effect. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a buechner funnel with filter paper cylinder, which has the advantages of efficient filtration effect, convenient and fast filter paper cylinder taking out, guaranteeing that the filter residue is not easy to fall and pollute the funnel, and being convenient for adjusting according to the use demand, and solves the above technical problems.

[0006] (II) Technical scheme

[0007] To achieve the above objectives, this utility model provides the following technical solution: a Buchner funnel with a filter paper cylinder, comprising a funnel body, a filter paper cylinder body disposed on the inner side of the funnel body, the filter paper cylinder body comprising a base, a limiting plate and an adjusting plate, the limiting plate and the adjusting plate being movably mounted on the top side of the base, and the adjusting plate being located between the limiting plates, a fixing frame being fixedly mounted on the top side of the limiting plate, a threaded rod being threadedly connected to the top side of the fixing frame, and a fastening plate being movably mounted on the bottom end of the threaded rod via a bearing.

[0008] Preferably, the top side of the base is provided with a sliding groove, the inner side of the sliding groove is provided with a slider, and the top side of the slider is fixedly installed with a limit plate and an adjustment plate, respectively. The bottom side of the base is fixedly installed with a partition, and the top side of the partition is provided with a plurality of through holes arranged at equal intervals.

[0009] With the above technical solution, during use, the bottom of the base is equipped with a partition, which helps to support the bottom of the folded filter paper material and prevents it from sticking to the filter holes on the funnel body, thus reducing the filtration effect. Moreover, the top of the partition has a through hole, which further prevents the holes from being blocked and thus reducing the filtration effect of the filter paper material.

[0010] Preferably, the limiting plate has an I-shaped structure, and a total of four limiting plates are provided. A limiting cavity is opened at the end of the limiting plate near the adjusting plate, and a reset spring is fixedly installed on the inner side of the limiting cavity.

[0011] Through the above technical solution, under the action of the limiting cavity, it is convenient to limit the adjustment plate when adjusting the diameter of the filter paper tube body, thereby improving the stability during the adjustment process. At the same time, under the action of the return spring, it is beneficial to improve the fixing effect of the filter paper tube body and to reset and store it when not in use.

[0012] Preferably, the adjusting plate includes a fixed plate and limiting posts. Limiting posts are fixedly installed on the left and right sides of the fixed plate, and the limiting posts are movably installed inside the limiting cavity. A return spring is fixedly installed at the end of the limiting post away from the fixed plate. The adjusting plate is provided with a total of four sets.

[0013] With the above technical solution, when installing the filter paper tube body, the limiting post slides inside the limiting cavity, which facilitates the movement of the adjusting plate when the limiting plate moves, improves the stability of the fixed plate during the adjustment process, and the return spring can conveniently limit the limiting post to prevent it from dislodging from the limiting cavity.

[0014] Preferably, a handle is fixedly installed on the top side of the fixing frame, a threaded sleeve is fixedly installed on the outer end of the top side of the fixing frame, and a limit hole is opened on the top side of the fixing frame. The limit holes are arranged in groups of two, and a total of two groups are provided.

[0015] Through the above technical scheme, in use, the threaded rod is rotated, the fastening plate is then pushed to move downwards and is located outside the funnel body, the handle is then loosened, the limiting plate and the adjusting plate are then slid inwards under the action of the reset spring, so that the fastening plate is fixed to the outer wall of the funnel body.

[0016] Preferably, the fastening plate is in an arc structure, two limiting rods are fixedly installed on the top side of the fastening plate, the limiting rods are movably installed inside the limiting holes, and the side of the fastening plate close to the funnel body is provided with an antiskid rubber pad.

[0017] Through the above technical scheme, in adjusting the height of the fastening plate, the limiting rods slide inside the limiting holes, so that the stability of the fastening plate in the adjusting and moving process is improved, and the side of the fastening plate close to the funnel body is provided with an antiskid rubber pad, so that the friction force is improved during fixing, and side shift is avoided.

[0018] Compared with the prior art, the utility model provides a buechner funnel with filter paper cylinder has the following beneficial effects:

[0019] 1、 the utility model discloses a filter paper cylinder body is placed in the inside of funnel body, then is respectively pulled out handle, and then drive corresponding limiting plate moves, at this time, the limiting plate moves and drive adjusting plate expands outward, and then close to the inner wall of funnel body, then rotate threaded rod, and then push fastening plate to move downwards and be located outside funnel body, then loosen handle, and then make limiting plate and adjusting plate slide inwards under the action of reset spring, so that fastening plate is fixed to the outer wall of funnel body, avoid filter paper cylinder body side shift in use, and convenient connection is used according to different specifications of funnel,

[0020] 2、 the utility model discloses that limiting plate and adjusting plate are limited to the outside of filter paper material, and then make filter paper material fold along the horizontal, convenient to use, because the bottom side of base is provided with baffle, and then advantageously support the bottom of filter paper material after folding, avoid the filter hole on funnel body and lead to the reduction of filtering effect, and because the top side of baffle is provided with through -hole, further avoid the hole block and lead to the reduction of filtering effect of filter paper material, and after use, can directly pull handle and take out filter paper cylinder body directly, so that convenient replacement filter paper material and take out filter residue, convenient and fast to use, can effectively reduce the difficulty of filter paper material and avoid the pollution of funnel body. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the connection three -dimensional structure schematic view of filter paper cylinder body and funnel body of the utility model;

[0022] Figure 2The utility model discloses a top view structure schematic diagram of the utility model;

[0023] Figure 3 The utility model discloses a filter paper cylinder body's three-dimensional structure schematic diagram;

[0024] Figure 4 The utility model discloses a limiting plate's three-dimensional structure schematic diagram;

[0025] Figure 5 The utility model discloses Figure 3 The utility model discloses a A point amplification structure schematic diagram in the utility model

[0026] Figure 6 The utility model discloses a base's three-dimensional structure schematic diagram.

[0027] 1, funnel body, 2, filter paper cylinder body, 3, base, 4, limiting plate, 5, adjusting plate, 6, fixed frame, 7, threaded rod, 8, fastening plate, 301, sliding slot, 302, partition, 303, through -hole, 401, limiting cavity, 501, fixed plate, 502, limiting column, 601, handle, 602, threaded sleeve, 603, limiting hole, 801, limiting rod. Specific implementation

[0028] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0029] Embodiment one:

[0030] As Figures 1-6 The utility model discloses a britis funnel with filter paper cylinder, including funnel body 1, the inside of funnel body 1 is provided with filter paper cylinder body 2, and filter paper cylinder body 2 includes base 3, limiting plate 4 and adjusting plate 5, and the top side of base 3 movably installs limiting plate 4 and adjusting plate 5, and adjusting plate 5 is located between limiting plate 4, and the top side of limiting plate 4 is fixedly installed with fixed frame 6, and the top side of fixed frame 6 is connected with threaded rod 7 through screw thread, and the bottom end of threaded rod 7 movably installs fastening plate 8 through bearing.

[0031] Specifically, the top side of the base 3 is provided with a sliding groove 301, the inner side of the sliding groove 301 is provided with a sliding block, and the top side of the sliding block is fixedly installed with a limiting plate 4 and an adjusting plate 5 respectively. The bottom side of the base 3 is fixedly installed with a partition plate 302, and a plurality of through holes 303 are arranged equidistantly on the top side of the partition plate 302. The advantage is that the bottom side of the base 3 is provided with the partition plate 302, which is conducive to supporting the bottom of the folded filter paper material, avoiding the reduction of the filtering effect caused by the filter hole on the funnel body 1, and further avoiding the reduction of the filtering effect of the filter paper material caused by the hole blockage due to the through holes 303 on the top side of the partition plate 302.

[0032] Specifically, the limiting plate 4 is in a I-shaped structure, and four limiting plates 4 are provided. One end of the limiting plate 4 close to the adjusting plate 5 is provided with a limiting cavity 401, and a return spring is fixedly installed in the inner side of the limiting cavity 401. The advantage is that the limiting cavity 401 is conducive to limiting the adjusting plate 5 when adjusting the diameter of the filter paper cylinder body 2, improving the stability during the adjustment process, and improving the fixing effect of the filter paper cylinder body 2 and the reset storage under the action of the return spring when not in use.

[0033] Specifically, the adjusting plate 5 comprises a fixed plate 501 and a limiting column 502, the left and right sides of the fixed plate 501 are fixedly installed with limiting columns 502 respectively, the limiting column 502 is movably installed in the inner side of the limiting cavity 401, and the end of the limiting column 502 away from the fixed plate 501 is fixedly installed with a return spring, and the adjusting plate 5 is provided with four groups. The advantage is that the limiting column 502 slides in the inner side of the limiting cavity 401, which is conducive to moving the adjusting plate 5 when the limiting plate 4 moves, and improves the stability of the fixed plate 501 during the movement adjustment process. Moreover, the limiting column 502 is limited by the return spring, avoiding disengagement from the limiting cavity 401.

[0034] Embodiment two:

[0035] As shown in Figures 1-6 As an improvement to the previous embodiment. Specifically, the top side of the fixed frame 6 is fixedly installed with a handle 601, the outer end of the top side of the fixed frame 6 is fixedly installed with a threaded sleeve 602, the top side of the fixed frame 6 is provided with a limiting hole 603, and the limiting hole 603 is provided with two groups in total. The advantage is that by rotating the threaded rod 7, the fastening plate 8 is pushed downward and located outside the funnel body 1, then the handle 601 is loosened, and the limiting plate 4 and the adjusting plate 5 are slid inward under the action of the return spring, so that the fastening plate 8 is fixed to the outer wall of the funnel body 1.

[0036] Specifically, the fastening plate 8 is arc-shaped, and two limiting rods 801 are fixedly installed on the top side of the fastening plate 8 and movably installed in the inner side of the limiting hole 603, and the side of the fastening plate 8 close to the funnel body 1 is provided with an anti-skid rubber pad. Advantage is that the limiting rods 801 slide in the inner side of the limiting hole 603, thereby facilitating to improve the stability of the fastening plate 8 during adjustment and movement, and the side of the fastening plate 8 close to the funnel body 1 is provided with an anti-skid rubber pad, thereby facilitating to improve the friction force during fixing and avoiding loosening and side shift.

[0037] In use, the filter paper cylinder body 2 is placed in the inner side of the funnel body 1, then the handles 601 are pulled outwards respectively, thereby driving the limiting plates 4 to move, at this time, the limiting plates 4 drive the adjusting plates 5 to expand outwards during movement, thereby approaching the inner wall of the funnel body 1, then the threaded rods 7 are rotated, thereby driving the fastening plate 8 to move downwards and locate outside the funnel body 1, then the handles 601 are released, thereby driving the limiting plates 4 and the adjusting plates 5 to slide inwards under the action of the return springs, thereby making the fastening plate 8 fixed to the outer wall of the funnel body 1, which is conducive to avoiding side shift of the filter paper cylinder body 2 during use, and facilitating to connect and use according to different specifications of the funnel, then the filter paper material required for folding the filter paper cylinder is placed flat on the top side of the filter paper cylinder body 2, then the center part of the filter paper material is pushed and moved downwards, thereby limiting the outer side of the filter paper material by the limiting plates 4 and the adjusting plates 5, thereby making the filter paper material fold along the horizontal direction, which is convenient for use, and during use, the bottom side of the base 3 is provided with the partition plate 302, thereby facilitating to support the bottom of the folded filter paper material, avoiding reducing the filtering effect caused by the filter hole of the funnel body 1, and the top side of the partition plate 302 is provided with the through hole 303, further avoiding the filtering effect of the filter paper material caused by the hole blockage, and after use, the handles 601 can be directly pulled to take out the filter paper cylinder body 2, thereby facilitating to replace the filter paper material and take out the filter residue, which is convenient and fast, and can effectively reduce the difficulty of taking out the filter paper material and avoid pollution of the funnel body 1.

[0038] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A Buchner funnel with filter paper cartridge comprising a funnel body (1), characterized in that: The inner side of the funnel body (1) is provided with a filter paper cylinder body (2), the filter paper cylinder body (2) comprises a base (3), a limiting plate (4) and an adjusting plate (5), the top side of the base (3) movably installs the limiting plate (4) and the adjusting plate (5), and the adjusting plate (5) is located between the limiting plate (4), the top side of the limiting plate (4) fixedly installs a fixing frame (6), the top side of the fixing frame (6) is connected with a threaded rod (7) through screw thread, and the bottom end of the threaded rod (7) movably installs a fastening plate (8) through a bearing.

2. A Buchner funnel having a filter paper cartridge according to claim 1, characterized in that: The top side of the base (3) is provided with a sliding groove (301), the inner side of the sliding groove (301) is provided with a sliding block, and the top side of the sliding block is fixedly installed with a limiting plate (4) and an adjusting plate (5), respectively, the bottom side of the base (3) is fixedly installed with a partition plate (302), and a plurality of through holes (303) are arranged at equal intervals on the top side of the partition plate (302).

3. A Buchner funnel having a filter paper cartridge according to claim 1, characterized in that: The limiting plate (4) is in a I-shaped structure, and four limiting plates (4) are arranged in total, one end of the limiting plate (4) close to the adjusting plate (5) is provided with a limiting cavity (401), and the inner side of the limiting cavity (401) is fixedly installed with a return spring.

4. A Buchner funnel having a filter paper cartridge according to claim 3, characterized in that: The adjusting plate (5) comprises a fixed plate (501) and a limiting column (502), the left and right sides of the fixed plate (501) are fixedly installed with a limiting column (502), respectively, the limiting column (502) is movably installed in the inner side of the limiting cavity (401), and the end of the limiting column (502) away from the fixed plate (501) is fixedly installed with a return spring, and the adjusting plate (5) is provided with four groups in total.

5. A Buchner funnel having a filter paper cartridge according to claim 1, characterized in that: The top side of the fixing frame (6) is fixedly installed with a handle (601), the outer end of the top side of the fixing frame (6) is fixedly installed with a threaded sleeve (602), the top side of the fixing frame (6) is provided with a limiting hole (603), and the limiting hole (603) is provided with two groups in total.

6. A Buchner funnel having a filter paper cartridge according to claim 5, characterized in that: The fastening plate (8) is in an arc-shaped structure, and the top side of the fastening plate (8) is fixedly installed with two limiting rods (801), the limiting rods (801) are movably installed in the inner side of the limiting hole (603), and the side of the fastening plate (8) close to the funnel body (1) is provided with an anti-skid rubber pad.

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