Tool auxiliary tool for preassembled column
By using a threaded adapter made of transparent polypropylene material and graduation lines on the outer wall of the column, combined with an inner plug and sieve plate design, the problem of existing column filling tools being unable to monitor the liquid level in real time has been solved, achieving accuracy and safety in liquid filling, simplifying the operation process, reducing costs, and extending the service life of the equipment.
Patent Information
- Application Number
- CN202520444603.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing column packing tools cannot monitor the liquid level in real time during the liquid filling process, resulting in uneven injection, residual air bubbles, and liquid leakage, which increases the complexity and uncertainty of the operation.
The threaded adapter, made of transparent polypropylene, features graduation lines on the outer wall of the cylinder, an inner plug and a sieve plate to ensure liquid sealing, and a bracket and clamping structure for easy disassembly and cleaning.
This improved the accuracy of liquid injection, reduced the risk of leakage, simplified the operation process, increased column loading efficiency and safety, reduced production costs, and extended equipment lifespan.
Smart Images

Figure CN223945050U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tooling auxiliary technical field more specifically, relate to a kind of tooling auxiliary tool of preloading column. BACKGROUND
[0002] In modern chemical experiments and separation technology, column packing as a common process, especially in chromatography, filtration and other applications, occupies a crucial position. The packing quality of the column directly affects the experimental results and reliability. The traditional column loading method mostly uses opaque metal or plastic adapter, and the operator cannot directly observe the filling condition of the liquid in the column, which leads to uneven injection of liquid, bubble residue and other problems in the packing process. In addition, there is also a risk of liquid leakage and poor sealing during the packing process, increasing the complexity and uncertainty of the operation.
[0003] In order to solve the above problems, several improved column loading tools have been developed in the prior art, such as column with scale and adjustable connection structure, aiming to improve the packing accuracy and reduce errors. However, these technologies still have some shortcomings in terms of visibility, sealing and easy disassembly during operation, especially in terms of dynamic monitoring and quick adjustment of liquid flow.
[0004] Most of the existing column loading tools rely on fixed, opaque adapters, and the operator cannot monitor the filling state of the liquid in real time. Since the liquid cannot be directly observed, the operator can only make judgments based on certain operating experience, which makes the filling process prone to errors.
[0005] Therefore, an innovative design is provided, which improves the shortcomings of the prior art by using transparent polypropylene material and optimized structure design, can monitor the liquid level in real time during the packing process, ensure the packing accuracy, and facilitate disassembly and cleaning, improve the overall operation efficiency and safety. SUMMARY
[0006] 1. Technical problem to be solved
[0007] In view of the problems existing in the prior art, the purpose of the utility model is to provide a tooling auxiliary tool for preloading column, which can improve the accuracy of liquid injection during the filling process, ensure the efficiency of column loading process, ensure the safety of experimental process, and prevent liquid pollution or overflow during operation.
[0008] 2. Technical scheme
[0009] To solve the above problems, the utility model adopts the following technical scheme.
[0010] A pre-packed column tooling aid tool, comprising a column body, a middle adapter provided in the column body, the adapter being a threaded adapter made of polypropylene material, a support provided outside the column body, a thread provided on the upper edge of the column body, a scale line provided on the outer wall of the column body, and a measuring tube installed on the right side of the column body.
[0011] According to the above features, a plug is provided on the inside of the bottom of the column body, and an inner plug and a sieve plate are sequentially provided above the plug.
[0012] In some embodiments, upper and lower threads are respectively provided on the inner side wall of the adapter.
[0013] According to the above features, the support comprises a base, a vertical rod installed on the base, a sleeve installed on the vertical rod, and a clamping structure installed on the sleeve.
[0014] In some embodiments, a plurality of insertion slots are provided on the vertical rod, and the sleeve and the clamping structure are both multiple and one-to-one corresponding.
[0015] According to the above features, the sleeve is fixed on the vertical rod by a limiting bolt, a connecting column is installed on one side of the sleeve, the connecting column is coaxially assembled with an end pipe on the clamping structure, a clamping plate is provided on the clamping structure, and a spring is provided between the clamping plate and the end pipe.
[0016] 3, Advantage
[0017] Compared with the prior art, the utility model has the advantages that:
[0018] 1) The threaded adapter made of transparent polypropylene material allows the operator to visually observe the change in liquid level, reducing the defect that the traditional column filling method cannot monitor the liquid level. This design improves the accuracy of liquid injection during filling and ensures the efficiency of the column filling process.
[0019] 2) The use of polypropylene material instead of stainless steel material can effectively reduce production cost, and polypropylene has good chemical corrosion resistance, suitable for use in liquid flow process. In addition, polypropylene material is more environmentally friendly, meeting the environmental adaptability requirements of modern chemical equipment.
[0020] 3) The design of the tool fully considers the liquid sealing problem, and the reasonable cooperation of the inner plug, sieve plate and plug components effectively avoids liquid leakage, ensures the safety of experimental materials, and ensures the high safety of the experimental process, preventing liquid pollution or overflow during operation.
[0021] 4) The tool structure design considers the convenience of disassembly and cleaning, and each component is easy to disassemble, can be thoroughly cleaned and maintained, prolongs the service life of the equipment, and reduces the maintenance burden of the operator.
[0022] 5) By combining the transparent threaded adapter and the scale line of the outer wall of the column, the operator can monitor and accurately control the filling process in real time, ensure the uniformity of the filler, and avoid overfilling or underfilling. The tool has a simple structure design, which is easy for the operator to assemble and disassemble, reduces the complexity of operation, and improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 A preloaded column tool auxiliary tool structure schematic view of the utility model;
[0024] Figure 2 A column first structure structure schematic view of the utility model;
[0025] Figure 3 A column second structure structure schematic view of the utility model;
[0026] Figure 4 An adapter structure schematic view of the utility model;
[0027] Figure 5 A support structure schematic view of the utility model;
[0028] Figure 6 A clamping structure structure schematic view of the utility model;
[0029] Mark explanation in the drawing:
[0030] 1, column; 2, adapter; 3, support; 4, measuring pipe; 5, thread; 6, scale line; 7, sieve plate; 8, inner plug; 9, plug; 21, upper thread; 22, lower thread; 31, clamping structure; 32, insertion slot; 33, vertical rod; 34, base; 3101, clamping plate; 3102, spring; 3103, end pipe; 10, sleeve; 11, limit bolt; 12, connecting column. DETAILED DESCRIPTION
[0031] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; 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 skilled in the art without creative labor belong to the scope of protection of the utility model.
[0032] Embodiment 1:
[0033] Please refer to Figures 1-6The utility model provides a kind of prepackaged column's tooling auxiliary tool, including column 1, the middle of column 1 is equipped with adapter 2, adapter 2 is the threaded adapter of polypropylene material, column 1 outside is equipped with support 3, the upper edge of column 1 is equipped with screw thread 5, column 1 outer wall is equipped with scale line 6, and measuring tube 4 is installed on the right side of column 1. Column 1 bottom inner side is equipped with plug 9, plug 9 top is sequentially provided with inner plug 8 and sieve plate 7.
[0034] In some embodiments, the inner side wall of adapter 2 is respectively provided with upper thread 21 and lower thread 22, support 3 includes base 34, vertical rod 33 is installed on base 34, sleeve 10 is installed on vertical rod 33, and clamping structure 31 is installed on sleeve 10.
[0035] In some embodiments, a plurality of insertion slots 32 are provided on vertical rod 33, and sleeve 10 and clamping structure 31 are one-to-one corresponding. Sleeve 10 is fixed on vertical rod 33 by limiting bolt 11, connecting column 12 is installed on one side of sleeve 10, connecting column 12 is coaxially assembled with end tube 3103 on clamping structure 31, clamping plate 3101 is provided on clamping structure 31, and spring 3102 is provided between clamping plate 3101 and end tube 3103.
[0036] In this embodiment, an improved prepackaged column tooling auxiliary tool is proposed, which aims to improve the filling efficiency of prepackaged column, reduce the problems in operation, and increase the design of transparent threaded adapter to facilitate the observation of liquid level.
[0037] 1. Structure and working principle of tooling
[0038] The basic structure of the tooling aid is shown in the figure, mainly including column body 1, adapter 2, support 3, measuring tube 4, plug 9, inner plug 8, sieve plate 7 and other key components. The column body 1 is the core part of the tooling, usually cylindrical, with scale lines 6 on the outside to show the filling height of the liquid, a threaded top 5 for connecting with the adapter 2, and a measuring tube 4 installed on the right side for monitoring the liquid filling condition. The adapter 2 is located in the middle part of the column body 1, with upper and lower threads 21 and 22, and an inner wall designed to facilitate connection with different components, enhancing the tightness of the connection. The transparent polypropylene material ensures that the operator can clearly observe the change in the height of the liquid level, avoiding the defect that the stainless steel adapter cannot observe the liquid level. The support 3 includes a base 34, a vertical rod 33, a sleeve 10 and a clamping structure 31. The base 34 stably supports the entire tooling, and the vertical rod 33 is provided with a plurality of slots 32 for the installation of the sleeve 10 and the clamping structure 31. The sleeve 10 and the clamping structure 31 are fixed by limiting bolts 11, making the assembly and disassembly of the tooling more convenient. The clamping plate 3101 is fixed with the end pipe 3103 through the spring 3102, which can fix the column body 1. The plug 9, inner plug 8 and sieve plate 7 are located at the bottom of the column body 1, ensuring that the material inside the column body can be effectively isolated. The design of the inner plug and sieve plate avoids liquid leakage, increasing the sealing of the tooling.
[0039] 2. Method of use
[0040] The method of using the tooling includes the following steps:
[0041] 1) Assembly process: use a stainless steel tweezers to put the sieve plate 7 into the column tube, and place the inner plug 8 above the sieve plate. Press the inner plug 8 into the column tube manually to ensure that there is no gap. Screw the plug 9 at the bottom of the column body 1 to fix the inner plug 8, and connect the other end with the adapter 2. Connect an empty column tube to the upper end of the adapter to complete the basic assembly of the tooling.
[0042] 2) Column loading operation: connect the pre-loaded column tooling to the AKTA chromatography system, set the flow rate and alarm pressure value, and run the system for 15 minutes to ensure that the liquid can uniformly fill the column tube and avoid the presence of bubbles or uneven filling. Remove the device and check the liquid level of the filled liquid by the scale line on the column body 1.
[0043] 3) Complete loading: if there is excess filler during the column loading process, pour the excess filler directly into the measuring cup to ensure accuracy during the column loading process. Remove the loaded tooling from the AKTA chromatography system and check the uniformity of the filler and the sealing of the column inner plug to ensure that the filler does not deviate or leak.
[0044] 3. Technical advantages and innovations
[0045] 1) Easy to operate: The threaded adapter made of transparent polypropylene material allows the operator to visually observe the change in the liquid level, avoiding the defect of not being able to see the liquid level in the traditional column filling method, thus simplifying the filling process.
[0046] 2) Environmentally friendly material: The use of polypropylene material as the adapter reduces the use of stainless steel material, has better environmental adaptability, and is relatively low in cost.
[0047] 3) Improve column filling efficiency: The transparent threaded adapter design makes the connection between the column tubes more compact, reducing the risk of liquid leakage and improving the efficiency of column filling.
[0048] 4) Increase safety: The design of inner plug, sieve plate and plug can effectively prevent liquid leakage and ensure safety during the experiment.
[0049] 5) Easy to disassemble and clean: The structural design of the tool makes it easy to disassemble and clean, ensuring long-term use of the equipment.
[0050] This embodiment mainly uses the transparent design of the threaded adapter combined with the scale line on the outer wall of the column to achieve real-time monitoring and precise control of the filling process. When the liquid is injected into the tool, the worker can observe the change in the liquid level through the transparent adapter to determine the filling condition and avoid overfilling or insufficient filling. During the filling process, the inner plug and sieve plate of the column effectively prevent liquid leakage, ensuring the safety of experimental materials and environmental protection. When using this tool, pressure detection is performed through the AKTA chromatography system to ensure uniform column filling, stable packing and experimental results.
[0051] The material polypropylene (PP) used in the adapter 2 and other components has good chemical corrosion resistance and is suitable for use in liquid flow processes. Stainless steel tweezers are used to accurately place the sieve plate 7 and the inner plug 8 to ensure the accuracy of the operation. Limiting bolts are used to fix the connection between the sleeve 10 and the vertical rod 33 to ensure the stability of the assembly.
[0052] The above is only a preferred specific embodiment of the present application; however, the scope of protection of the present application is not limited thereto. Any skilled person in the art can make equivalent replacements or changes to the technical scope disclosed in the present application according to the technical scheme and improvement concept of the present application, which should be covered within the scope of protection of the present application.
Claims
1. A pre-packed column tooling aid comprising a column body (1) characterised in that: The middle of the column (1) is provided with an adapter (2), the adapter (2) is a threaded adapter made of polypropylene material, the outer side of the column (1) is provided with a support (3), the upper edge of the column (1) is provided with a thread (5), the outer wall of the column (1) is provided with a scale line (6), and the right side of the column (1) is provided with a measuring pipe (4).
2. A pre-packed column tooling aid according to claim 1, wherein: The bottom inside of the column (1) is provided with a plug (9), the plug (9) is sequentially provided with an inner plug (8) and a sieve plate (7) above.
3. The tooling aid for a pre-packed column of claim 1, wherein: The inner side wall of the adapter (2) is respectively provided with an upper thread (21) and a lower thread (22) from top to bottom.
4. The tooling aid of claim 1, wherein: The support (3) comprises a base (34), the vertical rod (33) is installed on the base (34), the sleeve pipe (10) is installed on the vertical rod (33), and the clamping structure (31) is installed on the sleeve pipe (10).
5. A pre-packed column tooling aid according to claim 4, wherein: The vertical rod (33) is provided with a plurality of insertion grooves (32), the sleeve pipe (10) and the clamping structure (31) are both a plurality of and one-to-one corresponding.
6. A pre-packed column tooling aid according to claim 4, wherein: The sleeve pipe (10) is fixed on the vertical rod (33) through a limiting bolt (11), one side of the sleeve pipe (10) is provided with a connecting column (12), the connecting column (12) is coaxially assembled with an end pipe (3103) on the clamping structure (31), the clamping structure (31) is provided with a clamping plate (3101), and a spring (3102) is arranged between the clamping plate (3101) and the end pipe (3103).