Quantifier
By employing a replaceable elastic increment section and flared threaded connection structure in the metering device, combined with a high-precision smooth inner wall and sealing ring design, the problems of cumbersome capacity adjustment and liquid residue in existing metering devices are solved, achieving adjustable liquid metering accuracy and improved equipment reliability.
Patent Information
- Application Number
- CN202520408054.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Most existing metering devices are single-volume designs, requiring the replacement of different specifications of equipment to adjust the capacity, resulting in high costs and cumbersome operation. At the same time, the rough inner wall or unreasonable interface design makes it easy for liquid to remain, resulting in the actual liquid volume being lower than the calibrated value.
It adopts a replaceable elastic increment section and flared threaded connection structure, combined with a high-precision smooth inner wall and sealing ring design, to achieve adjustable liquid metering accuracy, reduce liquid residue, and facilitate cleaning and maintenance.
It achieves adjustable liquid metering accuracy, reduces operating costs, improves equipment lifespan and reliability, reduces liquid residue, and simplifies operation procedures.
Smart Images
Figure CN223846952U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of rationer especially relates to a rationer. BACKGROUND
[0002] In the field of chemical analysis, pharmaceutical production and industrial automation liquid supply, the precision and reliability of the quantitative liquid taking equipment directly affect the accuracy of experimental results or product quality. The traditional rationer (such as fixed volume bottle, pipette, etc.) has the following technical defects: the existing rationer is designed as single volume, which needs to replace different specifications of equipment to realize capacity adjustment, resulting in high cost and cumbersome operation; the inner wall of the ordinary rationer is rough or the interface design is unreasonable, liquid is easy to remain, resulting in actual liquid taking amount lower than the calibration value. SUMMARY
[0003] The rationer provided by the embodiment of the present application solves the technical problem that the rationer in the prior art is designed as single volume, which needs to replace different specifications of equipment to realize capacity adjustment, resulting in high cost and cumbersome operation, and the inner wall of the ordinary rationer is rough or the interface design is unreasonable, liquid is easy to remain, resulting in actual liquid taking amount lower than the calibration value.
[0004] The technical scheme adopted by the embodiment of the present application is as follows:
[0005] A rationer comprises two symmetrically arranged connecting ends and a replaceable elastic increment section, the increment section is arranged between the two connecting ends, the connecting end adopts an expanded thread connection structure, and the end part is designed as a taper; the inner diameter and elastic modulus of the increment section are adjusted according to the liquid quantitative precision requirement; a sealing ring is installed in the sealing groove of the connecting end, and the sealing ring is used to realize the sealing between the connecting end and the increment section.
[0006] Further technical scheme is that the inner surface of the rationer is a smooth inner wall processed with high precision, and the two ends are connected with the external liquid supply system through the expanded thread.
[0007] Further technical scheme is that the taper of the taper design of the connecting end is 10°-30°.
[0008] One or more technical schemes provided in the embodiment of the present application have at least the following technical effects or advantages:
[0009] 1、Due to the setting of the connecting end, the incremental section and the sealing ring, by replacing the incremental section with different elastic modulus or size, the adjustable range of liquid quantitative precision can be realized. Due to the high smooth inner wall of the taper connecting end, liquid adhesion and residue can be reduced. By adopting the flared thread connection mode to support quick disassembly and assembly, cleaning and maintenance are facilitated. By selecting polymer materials according to the corrosion resistance, viscosity and other characteristics of the liquid, the service life and reliability of the equipment can be improved. The incremental section can be replaced individually as consumables, so that the overall replacement of the quantifier is avoided, and the use cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is a whole structure assembly state structure diagram of a quantifier in the embodiment of the utility model.
[0011] Figure 2 It is a whole structure disassembly state structure diagram of a quantifier in the embodiment of the utility model.
[0012] Figure 3 It is a control principle diagram for embodying a quantifier in the embodiment of the utility model.
[0013] In the drawing: 1, connecting end; 2, incremental section; 3, sealing ring. DETAILED DESCRIPTION
[0014] The embodiment of the application provides a quantifier, which solves the technical problems in the prior art that the quantifier is mostly designed as a single volume, the capacity adjustment needs to be realized by replacing different specification devices, the cost is high, the operation is complicated, the inner wall of the ordinary quantifier is rough or the interface design is unreasonable, liquid is easy to be left, and the actual liquid taking amount is lower than the calibration value.
[0015] The technical scheme in the embodiment of the application is to solve the above problems, and the general idea is as follows:
[0016] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and the specific implementation mode.
[0017] A quantifier, as shown in Figure 1 , Figure 2 and Figure 3 , comprises two symmetrically arranged connecting ends 1 and a replaceable elastic incremental section 2, and the incremental section 2 is arranged between the two connecting ends 1; the connecting end 1 adopts a flared thread connection structure, and the end portion is designed as a taper; the inner diameter and the elastic modulus of the incremental section 2 are adjusted according to the liquid quantitative precision requirement; the sealing ring 3 is installed in the sealing groove of the connecting end 1, and the sealing ring 3 is used to realize the sealing between the connecting end 1 and the incremental section 2.
[0018] The inner surface of the dosing device is a high-precision smooth inner wall, and the two ends are connected with the external liquid supply system through flared threads.
[0019] The taper of the connecting end 1 is designed to be 10°-30°.
[0020] When the dosing device needs to be installed, the sealing ring 3 is inserted into the sealing groove of the connecting end 1, and the two ends are screwed with the increment joint 2 through flared threads. The dosing device is applied to a laboratory automatic titration system, and the quantitative error is small. The connecting end 1 is made of polytetrafluoroethylene material, and the increment joint 2 is made of fluororubber with an elastic modulus of 2 GPa. The taper of the taper is designed to be 20°, and the complete sealing is realized through the sealing ring 3 after the threaded connection.
[0021] Due to the setting of the connecting end 1, the increment joint 2 and the sealing ring 3, the adjustable range of the liquid quantitative precision can be realized by replacing the increment joint 2 with different elastic modulus or size. Since the taper connecting end 1 is provided with a high smooth inner wall, the liquid attachment and residue can be reduced. The flared thread connection mode is adopted to support quick disassembly and assembly, which is convenient for cleaning and maintenance. By selecting the polymer material according to the corrosion and viscosity of the liquid, the service life and reliability of the equipment can be improved. The increment joint 2 can be replaced individually as consumables, so that the overall replacement of the dosing device is avoided, and the use cost is reduced.
[0022] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications falling within the scope of the present application.
[0023] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.
Claims
1. A dosing device, characterized in that The utility model relates to a liquid metering device, comprising two symmetrically arranged connecting ends (1) and a replaceable elastic increment section (2) arranged between the two connecting ends (1), wherein the connecting ends (1) are designed with a flared thread connection structure and a tapered end, the inner diameter and elastic modulus of the increment section (2) are adjusted according to the liquid metering accuracy requirement, and a sealing ring (3) is arranged in the sealing groove of the connecting end (1) to realize the sealing between the connecting end (1) and the increment section (2).
2. A dosator according to claim 1, characterized in that The inner surface of the metering device is a high-precision smooth inner wall, and the two ends are connected with the external liquid supply system through flared threads.
3. A dosator according to claim 1, characterized in that The taper of the tapered end of the connecting end (1) is 10°-30°.