Filtering device for replacing laboratory Buchner funnel and suction flask
By designing an integrated PP material Buchner funnel and filtration bottle structure, combined with a double-sided Buchner funnel and a unidirectional shut-off diaphragm, the problems of fragility, small volume, and inconvenient cleaning of existing devices are solved, achieving a durable, safe, and efficient filtration effect.
Patent Information
- Application Number
- CN202520355029.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing laboratory Buchner funnels and vacuum flasks are fragile, have small volumes, and are inconvenient to clean, which limits the scale of experiments and increases costs.
An integrated PP material Buchner funnel and suction flask structure was designed, combining a double-sided Buchner funnel and a one-way shut-off diaphragm to achieve a corrosion-resistant, lightweight, and easy-to-clean filtration effect.
It improves the durability and safety of the filtration device, reduces experimental costs, simplifies the cleaning process, and adapts to the needs of large-scale experiments.
Smart Images
Figure CN223901345U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vacuum filtration technology field especially is related to a filter device of laboratory burette funnel and filter bottle replacement. BACKGROUND
[0002] Laboratory filtration usually adopts the mode of suction filtration, mainly uses burette funnel and filter bottle combination, connects vacuum pipeline to the upper air outlet of filter bottle, forms negative pressure environment in filter bottle, thereby makes the liquid in burette funnel filter paper filtration, flows to filter bottle, reaches the effect of filtration.
[0003] 1, the burette funnel is ceramic material mostly, and the maximum diameter is only 300mm, the overall height is about 370mm, and the volume is small, and for large scale experiment, manual operation is repeated, and ceramic material is fragile, and if improper operation or long-term use, breakage and damage are easy to occur, and experimental cost is increased.
[0004] 2, the existing filter bottle is glass material mostly, and the same problem of easy damage exists, the maximum volume of glass filter bottle is 20L, and due to the volume problem, the experiment and production scale are limited, personnel cleaning is repeated, experimental cost and manual operation are increased.
[0005] 3, with the increase of the volume of burette funnel and filter bottle, the requirement and difficulty of the operator are also increased in the cleaning process, and the cleaning is not convenient and is easy to damage in the cleaning process.
[0006] In view of the above reasons, without changing the original filtration principle, it is necessary to improve the filter device to realize better filtration effect and cost saving effect. UTILITY MODEL CONTENTS
[0007] The utility model aims at providing a filter device of laboratory burette funnel and filter bottle replacement to solve the problems in the above background technology.
[0008] In order to realize the above object, the utility model provides a filter device of laboratory burette funnel and filter bottle replacement, including first burette funnel and filter bottle arranged below first burette funnel, and first burette funnel and filter bottle are integrated structure, the top opening of first burette funnel is provided with funnel cover plate, and the second burette funnel is arranged above the sieve plate of first burette funnel, one side of filter bottle is connected with U type pipe, the top of filter bottle side wall is provided with vacuum connection port, both ends of U type pipe are connected with connecting pipe, and the connecting pipe close to filter bottle side is connected with vacuum connection port.
[0009] Preferably, the filter bottle is cylindrical, and the first Buchner funnel, the second Buchner funnel, the filter bottle and the funnel cover plate are all made of PP material.
[0010] Preferably, an L-shaped support is arranged on the inner side wall of the first Buchner funnel, and a clamping block adapted to the L-shaped support is arranged at the outer circle of the bottom of the second Buchner funnel, for connecting the first Buchner funnel and the second Buchner funnel.
[0011] Preferably, a through hole is arranged on the transverse part of the L-shaped support.
[0012] Preferably, a plurality of filter holes are arranged on the filter plate of the first Buchner funnel and the second Buchner funnel, for the outflow of filtrate.
[0013] Preferably, a feeding port is arranged on the top of the funnel cover plate, and a discharging port is arranged on the bottom of the outer side wall of the filter bottle.
[0014] Preferably, a one-way stop diaphragm is arranged on the connecting pipe connected with the vacuum connection port.
[0015] Therefore, the filter device for replacing the laboratory Buchner funnel and filter bottle has the following beneficial effects:
[0016] (1) By arranging the Buchner funnel and the filter bottle as an integrated structure and improving the material to PP material, the same filtering effect as the combination of the existing Buchner funnel and filter bottle is achieved, and the PP material has the advantages of corrosion resistance, lightness and durability, solving the problem of easy breakage and damage of the existing device, thereby reducing the cost; the integrated design not only ensures the vacuum degree of the whole interior, but also facilitates cleaning;
[0017] (2) By arranging the double-sided Buchner funnel, the filtering result can meet the experimental requirements, and the second Buchner funnel is convenient to install and disassemble, facilitating use.
[0018] The technical scheme of the present application will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 FIG. 1 is a structural schematic view of the filter device for replacing the laboratory Buchner funnel and filter bottle of the present application;
[0020] Figure 2 FIG. 2 is a side view of the filter device for replacing the laboratory Buchner funnel and filter bottle of the present application;
[0021] Figure 3 FIG. 3 is a schematic view of the first Buchner funnel of the embodiment of the present application;
[0022] Figure 4 is a first Bristle funnel plan view of the utility model embodiment;
[0023] Reference signs
[0024] 1, first Bristle funnel;2, suction filter bottle;3, funnel cover plate;4, second Bristle funnel;5, U-shaped tube;6, vacuum connection port;7, connecting pipe;8, L-shaped support;9, clamping block;10, through hole;11, leak hole;12, feed inlet;13, discharge port;14, one-way stop septum. DETAILED DESCRIPTION
[0025] The technical scheme of the utility model will be further described below by means of the drawings and embodiments.
[0026] Unless otherwise defined, technical terms or scientific terms used in the utility model should be understood as the usual meaning understood by persons with ordinary skills in the field to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0027] EMBODIMENT
[0028] The technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings.
[0029] As Figures 1-4As shown, a filter device for replacing the laboratory Buchner funnel and filtration bottle, comprising a first Buchner funnel 1 and a filtration bottle 2 arranged below the first Buchner funnel 1, the filtration bottle 2 is cylindrical, and the first Buchner funnel 1 and the filtration bottle 2 are an integral structure, specifically welded connection between the first Buchner funnel 1 and the filtration bottle 2, so that the vacuum degree inside the whole device is guaranteed; the top opening of the first Buchner funnel 1 is provided with a funnel cover plate 3, the top of the funnel cover plate 3 is provided with a feeding port 12, and the bottom of the outer wall of the filtration bottle 2 is provided with a discharging port 13. And the first Buchner funnel 1 is provided with a second Buchner funnel 4 above the sieve plate, an L-shaped support 8 is arranged on the inner side wall of the first Buchner funnel 1, a clamping block 9 matched with the L-shaped support 8 is arranged at the outer circle of the bottom of the second Buchner funnel 4, which is used for connecting the first Buchner funnel 1 and the second Buchner funnel 4. A through hole 10 is arranged on the transverse part of the L-shaped support 8, so that when the inside is cleaned, the cleaning liquid will not be left between the L-shaped support 8 and the first Buchner funnel 1. And the first Buchner funnel 1, the second Buchner funnel 4, the filtration bottle 2 and the funnel cover plate 3 are all made of PP material. Corrosion resistant and light, not easy to break, thereby reducing the filtering cost.
[0030] The filtration bottle 2 is connected with a U-shaped tube 5 on one side, and a vacuum connection port 6 is arranged at the top of the side wall of the filtration bottle 2. The two ends of the U-shaped tube 5 are connected with connecting pipes 7, and the connecting pipe 7 close to the side of the filtration bottle 2 is connected with the vacuum connection port 6. A one-way stop septum 14 is arranged on the connecting pipe 7 connected with the vacuum connection port 6. The one-way stop septum 14 is a one-way stop septum 14 for stopping the flow of fluid from the U-shaped tube 5 to the filtration bottle 2, and is made of rubber material.
[0031] A plurality of filter holes 11 are arranged on the sieve plate of the first Buchner funnel 1 and the second Buchner funnel 4, which are used for the outflow of filtrate.
[0032] Working principle: the material to be filtered is introduced into the first Buchner funnel 1 through the second Buchner funnel 4 through the feeding port 12, and finally poured out through the discharging port 13. When the vacuum pump fails or is temporarily powered off, etc. When the circulating water of the vacuum pump is sucked back along the U-shaped tube 5, it reaches the one-way stop septum 14 of the connecting pipe 7 of the U-shaped tube 5 connected with the vacuum connection port 6 of the filtration bottle 2, and the one-way stop septum 14 is closed, which can effectively prevent the circulating water from entering the filtration bottle 2, thereby effectively preventing the filtrate from being contaminated by the circulating water, and greatly improving the safety of the use process.
[0033] Therefore, the filter device for replacing the laboratory Buchner funnel and filtration bottle has the above structure, the first Buchner funnel and the filtration bottle of the filter device are integrally designed and made of PP material, which is corrosion resistant and not easy to break, and the whole device can be directly cleaned from top to bottom by cleaning liquid, solving the existing cleaning problem.
[0034] It should be pointed out finally that: the above examples are only used to illustrate the technical solutions of the utility model and not to limit them, although the utility model has been explained in detail with reference to the preferred embodiments, ordinary skilled in the art should understand that: its still can modify or equivalent replace the technical solutions of the utility model, and these modifications or equivalent replacements also can not make the modified technical solutions deviate from the spirit and scope of the technical solutions of the utility model.
Claims
1. A filter apparatus to replace a laboratory Buchner funnel and suction flask, characterized by: The device comprises a first Buchner funnel and a suction filter bottle arranged below the first Buchner funnel, and the first Buchner funnel and the suction filter bottle are integrated; a funnel cover plate is arranged at the top opening of the first Buchner funnel, a second Buchner funnel is arranged above the sieve plate of the first Buchner funnel, a U-shaped tube is connected to one side of the suction filter bottle, a vacuum connection port is arranged at the top of the sidewall of the suction filter bottle, and the two ends of the U-shaped tube are connected with connecting tubes, and the connecting tube close to the side of the suction filter bottle is connected with the vacuum connection port.
2. The filter apparatus of claim 1, wherein: The suction filter bottle is cylindrical, and the first Buchner funnel, the second Buchner funnel, the suction filter bottle and the funnel cover plate are all made of PP material.
3. The filter apparatus of claim 1, wherein: An L-shaped support is arranged on the inner sidewall of the first Buchner funnel, and a clamping block adapted to the L-shaped support is arranged at the bottom outer circle of the second Buchner funnel, for connecting the first Buchner funnel and the second Buchner funnel.
4. The filter apparatus according to claim 3, wherein: A through hole is arranged on the transverse part of the L-shaped support.
5. The filter apparatus of claim 1, wherein: A plurality of sieve holes are arranged on the sieve plates of the first Buchner funnel and the second Buchner funnel, for the outflow of filtrate.
6. The filter apparatus of claim 1, wherein: A feeding port is arranged at the top of the funnel cover plate, and a discharging port is arranged at the bottom of the outer sidewall of the suction filter bottle.
7. The filter apparatus of claim 1, wherein: A one-way stop diaphragm is arranged on the connecting tube connected with the vacuum connection port.