Filter device with replaceable sand core
By adopting replaceable glass sand core technology in glass chromatography columns, the problem of sand core in the existing technology cannot be replaced is solved, and the flexibly adjusting the filter pore size and materials is achieved, which expands the scope of use of the equipment and reduces costs.
Patent Information
- Application Number
- CN202421381281.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The sand core of existing glass chromatography columns cannot be replaced, resulting in the inability to adjust the filter pore size and filter material requirements, limiting the scope of use of glass chromatography columns and increasing production costs.
Using the replaceable glass sand core technology, by opening grooves inside the sand board flange, the sand core is placed inside the sand board flange, allowing users to easily replace the sand core, and then adjust the filter pore size and filter material.
It realizes flexible replacement of glass chromatography column sand core, expands the scope of use of equipment, reduces costs, and simplifies the operation process.
Smart Images
Figure CN222677440U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laboratory glass instruments, in particular to a replaceable sand core filtering device. Background Art
[0002] The chromatography column is the main body of gel chromatography technology. It is generally made of glass tubes or plexiglass tubes. It is a chromatography method that separates the components in the sample mixture according to the different distribution coefficients in the stationary phase and the mobile phase.
[0003] In the prior art, a common method for glass chromatography columns is to sinter a glass sand plate onto a glass tube, and the size of the filter holes of the glass sand plate is determined before sintering and cannot be changed after sintering into a finished product. This means that if the aperture requirements of the filter holes of the glass sand plate change, or other filter materials need to be replaced, the entire glass chromatography column needs to be replaced, thereby limiting the scope of use of the glass chromatography column and increasing production costs.
[0004] In order to solve the above problems, replaceable glass sand core technology came into being. This technology allows users to replace the sand core in the glass chromatography column as needed to adapt to different filter pore sizes and filter material requirements. To this end, we proposed a replaceable sand core filtration device to solve the above drawbacks. Utility Model Content
[0005] The purpose of the utility model is to provide a replaceable sand core filter device in order to solve the above-mentioned problem. The device utilizes replaceable glass sand core technology to allow the user to replace the sand core in the glass chromatography column as needed, thereby easily achieving the effect of replacing the filter aperture and the filter material, and solving the problem that the existing glass chromatography column sand core cannot be replaced mentioned in the background technology.
[0006] In order to solve the above problems, the utility model provides a technical solution:
[0007] A replaceable sand core filter device comprises a pipeline, the top of the pipeline is fixedly connected to an arc-shaped funnel, the top of the arc-shaped funnel is fixedly connected to a sand plate flange, a groove is provided inside the sand plate flange, an internal thread is provided on the side of the sand plate flange close to the groove, a sealing gasket is detachably provided inside the groove, a sand core is sleeved inside the sealing gasket, a chromatography column is threadedly connected to the internal part of the sand plate flange, a flange joint is fixedly connected to the bottom of the chromatography column, and the flange joint is threadedly connected to the sand plate flange.
[0008] As a preferred solution of the utility model, the external top thread of the sand plate flange is connected with a screw rod, a through groove is provided inside the screw rod, a groove 2 is provided inside the through groove, a sand core 2 is detachably connected inside the groove 2, and a sealing gasket 2 is sleeved outside the sand core 2.
[0009] As a preferred solution of the utility model, the outside of the sealing gasket 1 is symmetrically and detachably provided with a clip, one end of the two clips is fixedly connected to a slot, and one end of the two clips away from the slot is fixedly provided with a card block.
[0010] As a preferred solution of the utility model, the card slot is adapted to the card block, and the tops of the two card straps are fixedly connected with connecting columns, and the card straps and the connecting columns are used to remove and install the sealing gasket.
[0011] As a preferred solution of the utility model, a valve is fixedly provided on the outside of the pipeline, and the sealing gasket 1 and the sealing gasket 2 are both polytetrafluoroethylene gaskets, which are used to maintain the sealing between the sand core 1 and the sand core 2 and the sand plate flange.
[0012] The beneficial effects of the utility model are:
[0013] The utility model is provided with a sand plate flange, and a groove is opened inside the sand plate flange to place a sand core inside the sand plate flange. Only the sand core needs to be replaced without replacing the entire chromatography column. A cassette is provided at the same time, and the cooperation of the cassette, the slot and the block facilitates the replacement and installation of the sealing gasket one and the sealing gasket two, thereby making the replacement of the sand core very convenient and quick, thereby saving costs and test time. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] For ease of explanation, the present invention is described in detail by the following specific implementations and drawings.
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the separation structure of the screw and the sand plate flange of the utility model;
[0017] Figure 3 This is a schematic diagram of the cassette buckle structure of the utility model;
[0018] Figure 4 It is a bottom view schematic diagram of the screw and sand plate flange separation structure of the utility model.
[0019] In the figure: 1. pipeline; 2. arc funnel; 3. sand plate flange; 4. groove; 5. internal thread; 6. sealing gasket 1; 7. sand core; 8. chromatography column; 9. flange joint; 10. screw; 11. through groove; 12. cassette; 13. slot; 14. connecting column; 15. block; 16. valve; 17. sealing gasket 2; 18. sand core 2; 19. groove 2. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Example
[0021] Example 1: Please refer to Figure 1-Figure 4 The utility model provides a technical solution: a replaceable sand core filter device, including a pipe 1, a curved funnel 2 is fixedly connected to the top of the pipe 1, the pipe 1 and the curved funnel 2 are both made of glass, a sand plate flange 3 is fixedly connected to the top of the curved funnel 2, a groove 4 is provided inside the sand plate flange 3, an internal thread 5 is provided on the side of the sand plate flange 3 close to the groove 4, a sealing gasket 6 is detachably provided inside the groove 4, a sand core 7 is sleeved inside the sealing gasket 6, a chromatography column 8 is threadedly connected to the inside of the sand plate flange 3, a flange joint 9 is fixedly connected to the bottom of the chromatography column 8, the flange joint 9 is threadedly connected to the sand plate flange 3, the sand plate flange 3 is used to connect the chromatography column 8, and the groove 4 is used to place the sand core 7, and the replaceable glass sand core technology allows the user to replace the sand core in the glass chromatography column as needed, thereby easily realizing the adjustment of the filtration aperture and the filter material. This flexibility enables the glass chromatography column to adapt to more application scenarios and expands its scope of use.
[0022] Example 2: Please refer to Figure 2 and Figure 4 This is a usage scenario of a different method of the first embodiment. Furthermore, a screw 10 is threadedly connected to the external top of the sand plate flange 3. A through groove 11 is provided inside the screw 10. A groove 2 19 is provided inside the through groove 11. A sand core 2 18 is detachably connected to the inside of the groove 19. The sand core 2 18 and the sand core 1 7 are both replaceable sand cores. A sealing gasket 2 17 is sleeved on the outside of the sand core 18. This set of devices can be placed in a variety of flanges and threads and is suitable for various filtering devices, such as threaded models, embedded threads, and threaded embedded single-pass models, which greatly improves the applicability of the device.
[0023] For further information, see Figure 3 The outside of the sealing gasket 6 is symmetrically and detachably provided with a cassette 12, which is used to facilitate users to install and remove the sealing gasket 16 and the sealing gasket 2 17, so as to facilitate users to replace the sand core, one end of the two cassettes 12 is fixedly connected with a slot 13, and the ends of the two cassettes 12 away from the slot 13 are fixedly provided with a block 15, the slot 13 is adapted to the block 15, and the tops of the two cassettes 12 are fixedly connected with a connecting column 14, and a concave hole is provided on the surface of the connecting column 14, which is convenient for users to grab, and the cassette 12 and the connecting column 14 are used to remove and install the sealing gasket 6, and replacing the sand core 7 is simpler and faster than replacing the entire glass chromatography column 8, which greatly reduces the burden on operators, especially when frequent replacement is required, the advantage of this simplified operation is more obvious.
[0024] Furthermore, a valve 16 is fixedly provided on the outside of the pipeline 1, and the valve 16 is used to control the flow direction and flow rate of the liquid phase. The sealing gasket 1 6 and the sealing gasket 2 17 are both polytetrafluoroethylene gaskets, which are used to maintain the sealing between the sand core 1 7 and the sand core 2 18 and the sand plate flange 3. If a tighter sealing method is required, the polytetrafluoroethylene gasket ring can be upgraded to integrate the flange seal and the sand plate seal. The edge of the sand plate and the sealing ring are sealed at the same time, which can better ensure the sealing effect. The replaceable glass sand core technology allows the user to replace the sand core as needed, which solves the problems of limited use range, high cost and inconvenient operation of traditional glass chromatography columns, improves the flexibility and economy of the equipment, reduces costs and simplifies the operation process.
[0025] To sum up: when using this device, first pass the tape 12 through the inside of the sealing gasket 6, then snap the card slot 13 and the card block 15 together, then insert the sealing gasket 6 into the outside of the sand core 7, place the sand core 7 into the inside of the groove 4, then make the flange joint 9 at the bottom of the chromatography column 8 contact the internal thread 5 in the sand plate flange 3, and tighten it. When the sand core 7 needs to be replaced, loosen the chromatography column 8, grab the connecting column 14 and apply force outward to make the sealing gasket 6 detach from the inside of the sand plate flange 3, thereby facilitating the replacement of the sand core 7.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A replaceable sand core filter device, comprising a pipeline (1), characterized in that: The top of the pipe (1) is fixedly connected to an arc-shaped funnel (2), the top of the arc-shaped funnel (2) is fixedly connected to a sand plate flange (3), a groove (4) is provided inside the sand plate flange (3), a side of the sand plate flange (3) close to the groove (4) is provided with an internal thread (5), the inside of the groove (4) is detachably provided with a sealing gasket (6), the inside of the sealing gasket (6) is sleeved with a sand core (7), the inside of the sand plate flange (3) is threadedly connected to a chromatography column (8), the bottom of the chromatography column (8) is fixedly connected to a flange joint (9), and the flange joint (9) is threadedly connected to the sand plate flange (3).
2. A replaceable sand core filter device according to claim 1, characterized in that: The outer top of the sand plate flange (3) is threadedly connected to a screw rod (10), a through groove (11) is provided inside the screw rod (10), a second groove (19) is provided inside the through groove (11), a second sand core (18) is detachably connected inside the second groove (19), and a second sealing gasket (17) is sleeved outside the second sand core (18).
3. A replaceable sand core filter device according to claim 1, characterized in that: The sealing gasket (6) is symmetrically and detachably provided with a clip (12) on the outside, one end of each of the two clips (12) is fixedly connected to a clip slot (13), and one end of each of the two clips (12) away from the clip slot (13) is fixedly provided with a clip block (15).
4. A replaceable sand core filter device according to claim 3, characterized in that: The card slot (13) is adapted to fit the card block (15), and the tops of the two card straps (12) are fixedly connected with connecting posts (14), and the card straps (12) and the connecting posts (14) are used to remove and install a sealing gasket (6).
5. The replaceable sand core filter device according to claim 1, characterized in that: A valve (16) is fixedly provided on the outside of the pipeline (1), and the sealing gasket 1 (6) and the sealing gasket 2 (17) are both polytetrafluoroethylene gaskets, which are used to maintain the sealing between the sand core 1 (7) and the sand core 2 (18) and the sand plate flange (3).