Manual bubble removing device
By designing an independent loop manual degassing device, and utilizing a piston and one-way valve system, the problem of difficult bubble removal in the colorimetric cell of a liquid chromatography detector was solved, achieving efficient and simple bubble removal and reducing the probability of system failure.
Patent Information
- Application Number
- CN202520133287.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Tiny air bubbles adhering to the colorimetric cell in a liquid chromatography detector are difficult to remove efficiently. Existing manual removal methods are prone to introducing air bubbles, resulting in low efficiency of liquid flow rinsing and a high probability of system failure.
A manual degassing device was designed. Through an independent circuit structure, a piston and one-way valve system are used to achieve efficient rinsing of bubbles, avoiding reliance on the liquid circuit system and electronic control and drive devices. The device uses a pressing piston to allow liquid to enter the gas chamber, compress the gas to generate pressure, and instantly release the liquid to rinse the colorimetric cell.
It achieves efficient bubble removal, reduces the probability of system failure, is suitable for occasions with low usage frequency, and has a simple structure and is easy to operate.
Smart Images
Figure CN223716450U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid chromatography detection field, especially a manual bubble removing device. BACKGROUND
[0002] Small bubbles are difficult to remove when adhering to the colorimetric cell in the liquid chromatography detector, and two methods of manual removal or liquid flushing are usually adopted. Manual bubble removal is easy to realize, but the bubbles are easy to be brought in when reconnection, and multiple operations are often required to complete the bubble removing purpose. Liquid flushing consumes a large amount of reagent and may not be able to flush away the bubbles, and the bubble removing efficiency is extremely low. SUMMARY
[0003] In view of the above problems, the utility model provides a kind of manual bubble removing device, is independent circuit, can not rely on liquid path system independent operation, does not use electric control electric driver, reduce system failure probability, applicable to the occasion with lower frequency of use.
[0004] The utility model discloses a technical scheme as follows:
[0005] A kind of manual bubble removing device, including base, cover body being installed in the top of base and base being set in the bottom of base, piston cavity is equipped in base, piston is matched in piston cavity, the piston rod of piston is connected with the pressing rod for pressing piston, pressing rod is installed on cover body by hinged seat, pressure relief cavity is equipped in base and is connected with piston cavity, pressure relief cavity is communicated with liquid outlet, discharge one-way valve is equipped in pressure relief cavity, one side of piston cavity is communicated with communication cavity, communication cavity is communicated with the liquid inlet of colorimetric cell and is communicated with liquid inlet, liquid inlet is equipped with liquid inlet one-way valve;Cover body is detachably installed with air chamber, air cavity in air chamber is communicated with communication cavity.
[0006] Preferably, the piston is connected with a first return spring, and the first return spring is arranged below the piston.
[0007] Preferably, the bottom of the piston is provided with a push rod.
[0008] Preferably, a liquid inlet head is mounted on one side of the base, and the communication cavity is communicated with the liquid inlet in the liquid inlet head.
[0009] Preferably, the discharge one-way valve and the liquid inlet one-way valve are both one-way valves with elastic return function.
[0010] Preferably, the air cavity in the air chamber is located above the liquid inlet of the air chamber.
[0011] Preferably, the air chamber is sealed and installed on the liquid inlet pipeline in a threaded manner.
[0012] Compared with the prior art, the manual bubble removing device has the advantages that: the liquid in the piston cavity enters the gas cavity in the gas chamber by pressing the piston with the pressing rod, the gas in the gas chamber is extruded to generate pressure, until the piston pushes the liquid outlet check valve in the pressure relief cavity, the high-speed pressure liquid is released instantaneously in the cavity, flows out from the liquid outlet, and flushes the flow channel through the internal loop of the colorimetric cell to complete the bubble removing action, the whole flushing loop is an independent loop, can be independently operated without depending on the liquid circuit system, does not use electric control and electric driving devices, reduces the system failure probability, and is suitable for occasions with low use frequency. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 A schematic view of the manual bubble removing device is provided. DETAILED DESCRIPTION
[0014] The preferred embodiment of the manual bubble removing device provided by the utility model is described in detail according to the drawings.
[0015] Figure 1 A preferred embodiment of the manual bubble removing device provided by the utility model is provided. The manual bubble removing device comprises a base 10, a cover 20 installed on the top of the base 10, and a base 30 arranged at the bottom of the base, the base 10 is internally provided with a piston cavity 11, the piston cavity 11 is internally fitted with a piston 12, the piston rod of the piston 12 is connected with a pressing rod 40 used for pressing the piston, the pressing rod 40 is installed on the cover 20 through a hinge seat, the base 30 is internally provided with a pressure relief cavity 31 connected with the piston cavity, the pressure relief cavity 31 is communicated with a liquid outlet 32, the pressure relief cavity is internally provided with a liquid outlet check valve 33, one side of the piston cavity 11 is communicated with a communication cavity 13, the communication cavity 13 is internally communicated with a liquid inlet 14 communicated with the liquid inlet of the colorimetric cell, the liquid inlet 14 is internally provided with a liquid inlet check valve 15; the cover 20 is detachably installed with a gas chamber 50, the gas cavity 51 in the gas chamber 50 is communicated with the communication cavity 13, so that the piston cavity 11, the communication cavity 13 and the gas chamber 51 are communicated, when the pressing rod 40 is pressed downward, the pressing rod 40 drives the piston 12 to move downward in the piston cavity 11, the liquid at the lower part of the piston 12 is pressed into the gas cavity 51 in the gas chamber 50 through the communication cavity 13, the gas in the gas cavity 51 is compressed, the pressure in the gas cavity 51 rises, the pressing rod 40 is continuously pressed downward until the pressing rod 40 drives the liquid outlet check valve 33 in the pressure relief cavity 31, the liquid outlet check valve 33 moves downward to be opened, the pressure liquid in the gas cavity 51 is released instantaneously and flows out from the liquid outlet 32, the liquid outlet 32 is connected with the liquid inlet of the colorimetric cell, the high-speed pressure liquid flushes the flow channel through the internal loop of the colorimetric cell to complete the bubble removing action; when the pressing rod 40 is pressed to the bottom, the pressing rod 40 can be released, drives the piston 12 and the liquid outlet check valve 33 to reset, at this time, the pressure in the piston cavity is negative, the liquid inlet check valve 15 is opened, the liquid flows into the liquid inlet check valve 15 to complete liquid supplementing, and one action cycle is completed.
[0016] The piston 12 is connected with a first reset spring 121, the first reset spring 121 is arranged below the piston 12, when the pressing rod 40 is pressed, the pressing rod 40 pushes the piston 12 to move downwards, the piston 12 extrudes the first reset spring 121, when the pressing rod 40 is released, the first reset spring 121 releases and pushes the piston 12 and the pressing rod 40 to reset.
[0017] The bottom of the piston 12 is provided with a push rod 122, when the piston 12 moves downwards, the push rod 122 at the bottom of the piston 12 pushes the liquid outlet one-way valve 33, so that the liquid outlet one-way valve 33 is opened.
[0018] One side of the base 10 is provided with a liquid inlet head 60, the communication cavity 13 is communicated with the liquid inlet 14 in the liquid inlet head 60, and the liquid inlet one-way valve 15 is arranged in the liquid inlet head 60.
[0019] It is worth noting that the liquid outlet one-way valve 33 and the liquid inlet one-way valve 15 are both one-way valves with elastic reset function, when the pressing rod 40 is released, the reset spring in the liquid outlet one-way valve 33 can drive the liquid outlet one-way valve 33 to reset, when the liquid in the piston cavity 11 balances the pressure inside and outside the cavity, the reset spring in the liquid inlet one-way valve 15 can drive the liquid inlet one-way valve 15 to reset. In addition, because the liquid inlet needs to overcome the reset spring force of the liquid inlet one-way valve 15, the pressure in the gas cavity and the reset spring force of the one-way valve are balanced by repeatedly pressing and releasing the pressing rod 40 several times at the beginning, so that the flushing pressure is not enough at the beginning.
[0020] The air chamber 50 is detachably and sealingly mounted on the cover body 20, the gas cavity 51 is located at the upper part of the air chamber liquid inlet, so that the gas cavity 51 and the communication cavity 13 are connected and kept sealed, and the cavity of the gas cavity 51 is located at the upper part of the air chamber liquid inlet, so that gas overflow can be avoided. The air chamber 50 can be sealingly mounted on the cover body 20 in a threaded or other way. By replacing the air chamber 50 with different volumes, different flushing pressures can be realized under the condition that the liquid pushing amount is unchanged, and the same set of devices can be applied in different systems.
[0021] In summary, the technical scheme of the utility model can fully and effectively achieve the above-mentioned utility model purposes, the structure and function principle of the utility model have been fully verified in the embodiments, the expected effects and purposes can be achieved, and various changes or modifications can be made to the embodiments of the utility model without departing from the principles and essence of the utility model. Therefore, the utility model includes all the replacements within the range mentioned in the patent application, any equivalent changes within the range of the utility model application are within the patent range of the utility model application.
Claims
1. A manual bubble-removal device, characterized in that The base, the cover installed on the top of the base and the base installed on the bottom of the base, the piston cavity is arranged in the base, the piston is matched in the piston cavity, the piston rod of the piston is connected with the pressing rod for pressing the piston, the pressing rod is installed on the cover through the hinge seat, the pressure relief cavity is arranged in the base and is connected with the piston cavity, the pressure relief cavity is communicated with the liquid outlet, the pressure relief cavity is arranged with the liquid outlet check valve, one side of the piston cavity is communicated with the communication cavity, the communication cavity is communicated with the liquid inlet communicated with the colorimetric cell liquid inlet, the liquid inlet is arranged with the liquid inlet check valve; the gas chamber is detachably installed on the cover, and the gas cavity in the gas chamber is communicated with the communication cavity.
2. The manual bubble removing device of claim 1, wherein: The piston is connected with the first reset spring, and the first reset spring is arranged below the piston.
3. The manual bubble removing device of claim 1, wherein: The bottom of the piston is provided with a push rod.
4. The manual bubble removing device of claim 1, wherein: One side of the base is provided with a liquid inlet head, and the communication cavity is communicated with the liquid inlet in the liquid inlet head.
5. The manual bubble removing device of claim 1, wherein: The liquid outlet check valve and the liquid inlet check valve are both elastic reset function check valves.
6. The manual bubble removing device of claim 1, wherein: The gas cavity in the gas chamber is located above the liquid inlet of the gas chamber.
7. The manual bubble removing device of claim 6, wherein: The gas chamber is sealed and installed on the liquid inlet pipeline in a threaded manner.