Automatic reading burette

By integrating clamping components and photoelectric sensors onto the burette, automatic reading is achieved, solving the problem of large errors in manual reading and improving the accuracy of reading and experimental efficiency.

CN121856469APending Publication Date: 2026-04-14吕霞
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-22
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing burette has a large error in manual reading after titration, resulting in inaccurate data.

Method used

An automatic reading burette was designed, which uses components such as a clamping assembly, a light emitter, a light receiving plate, an infrared sensor, and a high-definition lens to achieve automatic positioning and accurate reading through laser emission, beam sensing, and high-definition imaging.

Benefits of technology

It improves the accuracy of readings, reduces human error, and enhances experimental efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an automatic reading burette, and relates to the technical field of burettes, the automatic reading burette comprises a burette, the outer side of the burette is provided with a clamping assembly, the outer side of the clamping assembly is provided with a reading assembly, the inner side of the burette is provided with an inner tube, and the outer wall of the inner tube is uniformly provided with a plurality of dial gauges; a clamping frame is arranged on the outer side of the clamping assembly, and clamping rolling shafts are installed at the two ends of the clamping assembly. Liquid needing to be titrated is loaded through the inner tube, the dial gauge can provide a scale checking function, an effective clamping and supporting effect can be provided through the clamping frame, the clamping rolling shaft can be clamped on the outer side of a burette, and the adjusting rod is matched with the tension spring to contract, so that the burette can be conveniently titrated. Therefore, the clamping assembly can be stably clamped on the outer wall of the burette, the quick disassembly and assembly of the clamping assembly facilitate the realization of high-efficiency assembly and disassembly functions when automatic reading is needed, and the obstruction can be reduced when reading is not needed.
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Description

Technical Field

[0001] This invention relates to the field of burette technology, specifically to an automatic burette. Background Technology

[0002] Titration analysis is a commonly used experimental method in chemical experiments. The accuracy of the burette reading directly affects the final analytical results. In the past, the standard burette in the laboratory was generally 50 ml, and its smallest volume graduation was usually 0.1 ml. When reading the volume, it was necessary to estimate to two decimal places. Therefore, it is easily affected by human factors, which can cause reading errors.

[0003] In the prior art, such as the Chinese patent CN209014537U entitled "An Auxiliary Device for Reading a Burette," the reading auxiliary device includes a base plate, a positioning mechanism and a measuring mechanism disposed on the base plate, and a fixing component for clamping the burette. The positioning mechanism includes a slide rail and a sliding block slidably connected to the slide rail. The sliding block is provided with a limiting bolt and a pointer. The measuring mechanism includes a slide rail, a sliding ruler slidably connected to the slide rail, and a positioning bolt. The slide rail has a threaded through hole, through which the positioning bolt passes, and the end of the positioning bolt abuts against the sliding ruler. The slide rail and the slide rail are parallel in position. This utility model, when used in conjunction with a burette, can avoid reading errors caused by unclear burette scales or insufficient operator experience, and can accurately and directly read the volume of liquid consumed in the burette in one go, improving experimental efficiency and accuracy.

[0004] In the existing technology, the manual reading of existing burettes after titration has a large error, and the data needs to be obtained by estimation, which leads to the problem of insufficient data accuracy. In order to address the above problems, an automatic reading burette is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an automatically reading burette to solve the problems mentioned in the background art, such as large errors in manual reading after titration and the need for estimation to obtain data, which leads to inaccurate data.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic reading burette, comprising a burette, a clamping assembly disposed on the outer side of the burette, a reading assembly disposed on the outer side of the clamping assembly, an inner tube disposed on the inner side of the burette, a plurality of scales evenly distributed on the outer wall of the inner tube, a clamping frame disposed on the outer side of the clamping assembly, clamping rollers mounted at both ends of the clamping assembly, two adjusting rods movably passing through the side of the clamping assembly, and tension springs disposed on the outer sides of the two adjusting rods. The liquid to be titrated is loaded through the inner tube, the scales provide a scale reading function, the clamping frame provides an effective clamping support effect, the clamping rollers can be clamped on the outer side of the burette, and the clamping assembly can be stably clamped on the outer wall of the burette by the adjustment rods in conjunction with the tension springs. The quick assembly and disassembly of the clamping assembly facilitates efficient installation and disassembly when automatic reading is required, and reduces obstruction when reading is not required, providing a convenient operation effect.

[0007] One end of the clamping assembly is equipped with a light emitter, and the other end is equipped with a light receiving plate. An infrared sensor is installed on the top of the other end of the clamping assembly. A reading camera is installed on one side of the reading assembly. The light emitter can provide laser emission, and the light receiving plate collects and senses the laser beam. This allows the reading assembly to be moved from bottom to top outside the burette during reading. When it reaches a point where there is no light obstruction, it will quickly stop moving upwards, thus providing effective positioning. At the same time, the high-definition lens and infrared sensor are used to accurately position and record the scale, thereby effectively improving the accuracy of the reading.

[0008] Preferably, the clamping assembly is equipped with connecting seats at both ends, the clamping rollers are arranged on the sides of the connecting seats, and multiple anti-slip strips are distributed on the outer side of the connecting seats. The connecting seats can provide a gripping and mounting function for the components, and the anti-slip strips can provide an effective anti-slip effect.

[0009] Preferably, a rotating shaft is installed on one side of the connecting seat, the inner side of the rotating shaft passes through the inner side of the clamping roller, one end of the rotating shaft passes through the inner side of the connecting seat, and one end of the rotating shaft is connected to one end of the micro motor. The rotating shaft can provide a transmission connection, which facilitates the rotation of the rotating shaft and the clamping roller by driving the micro motor, thereby providing automatic lifting and adjustment control and precise positioning reading.

[0010] Preferably, one end of the light emitter is fixedly connected to a first side bracket, and the bottom of the first side bracket is fixedly connected to one end of the clamping assembly. The first side bracket provides a stable mounting function for the light emitter, which is conducive to stable light emission.

[0011] Preferably, one end of the reading camera is equipped with a high-definition lens, which is positioned on the side of the burette. The high-definition lens can effectively capture images, thereby facilitating accurate data capture, reading, and recording.

[0012] Preferably, a display is fixedly connected to the top of the reading camera, and a fixing rod connects the top of the reading camera to the bottom of the display. The detected data can be displayed on the display, making it easy to view the data quickly.

[0013] Preferably, a second side bracket is fixedly installed on the outer side of the light receiving plate. The bottom of the second side bracket is fixedly connected to the other end of the clamping assembly. The light receiving plate can be installed through the second side bracket, thereby providing stable light reception and infrared sensing effects, which helps to reduce errors.

[0014] Preferably, a third side bracket is fixedly installed at the bottom of the reading camera. A connecting rod is installed at one end of the third side bracket, and the two ends of the connecting rod are movably connected to the connecting seat. The third side bracket can provide stable support for the reading camera, which is beneficial for accurate shooting. The connecting rod can provide support for the third side bracket, and its movement with the connecting seat can avoid affecting the clamping function.

[0015] Preferably, the burette has an inlet at the top and a titration head at the bottom. The inlet facilitates the loading of the titrant into the inner tube for titration, while the titration head allows the liquid to drip out to achieve the titration effect.

[0016] Preferably, the burette is provided with a transparent outer tube, one end of which is equipped with an upper limit plate and the other end with a lower limit plate. The transparent outer tube provides external support and facilitates reading. The upper and lower limit plates effectively limit the clamping components at both ends, which helps to improve stability.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this invention, the liquid to be titrated is loaded through the inner tube, the scale provides the function of scale viewing, the clamping frame provides an effective clamping support, the clamping roller can be clamped on the outside of the burette, and the adjustment rod and tension spring can retract to stably clamp the clamping assembly on the outer wall of the burette. The quick assembly and disassembly of the clamping assembly facilitates efficient installation and disassembly when automatic reading is required, and reduces obstruction when reading is not required, providing a convenient operation effect.

[0019] 2. In this invention, the light emitter can provide the function of laser emission, and the light receiving plate collects and senses the laser beam. This facilitates the reading of the burette by moving the reading component from bottom to top outside the burette. When the light is no longer obstructed, the upward movement will stop quickly, thus providing an effective positioning function. At the same time, the high-definition lens and infrared sensor are used to accurately position and record the scale, thereby effectively improving the accuracy of the reading. Attached Figure Description

[0020] Figure 1 This is a perspective view of an automatic reading burette according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of an automatic reading burette according to the present invention from another angle.

[0022] Figure 3 This is a cross-sectional view of a burette with automatic reading according to the present invention.

[0023] Figure 4 This is a schematic diagram of the clamping assembly and reading assembly of an automatic reading burette according to the present invention;

[0024] Figure 5 This is a schematic diagram of the clamping assembly and reading assembly of an automatic reading burette according to the present invention from another angle.

[0025] Figure 6 This is an enlarged structural diagram of point A of an automatic reading burette according to the present invention.

[0026] In the picture:

[0027] 1. Burette; 101. Transparent outer tube; 102. Inner tube; 103. Scale; 104. Liquid inlet; 105. Burette head; 106. Upper limit plate; 107. Lower limit plate; 2. Clamping assembly; 201. Clamping frame; 202. Clamping roller; 203. Connecting seat; 204. Adjusting rod; 205. Tension spring; 206. Anti-slip strip; 207. Micro motor; 208. Rotating shaft; 3. Reading assembly; 301. Light emitter; 302. First side bracket; 303. Reading camera; 304. High-definition lens; 305. Display; 306. Light receiving plate; 307. Second side bracket; 308. Infrared sensor; 309. Connecting rod; 310. Third side bracket. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1: Refer to Figures 1-6 As shown: An automatic reading burette includes a burette 1, a clamping assembly 2 on the outer side of the burette 1, a reading assembly 3 on the outer side of the clamping assembly 2, an inner tube 102 on the inner side of the burette 1, a plurality of scales 103 evenly distributed on the outer wall of the inner tube 102, a clamping frame 201 on the outer side of the clamping assembly 2, clamping rollers 202 installed at both ends of the clamping assembly 2, and two adjusting rods 204 movably passing through the side of the clamping assembly 2. Tension springs 205 are provided on the outer side of the two adjusting rods 204. The reading is adjusted via the inner tube 102. The liquid to be titrated is loaded, and the scale 103 provides the function of scale viewing. The clamping bracket 201 provides an effective clamping support effect. The clamping roller 202 can be clamped on the outside of the burette, and the adjusting rod 204 and the tension spring 205 can retract to stably clamp the clamping assembly 2 on the outer wall of the burette 1. The quick assembly and disassembly of the clamping assembly 2 facilitates efficient installation and disassembly when automatic reading is required, and reduces obstruction when reading is not required, providing a convenient operation effect.

[0030] One end of the clamping assembly 2 is equipped with a light emitter 301, and the other end is equipped with a light receiving plate 306. An infrared sensor 308 is installed on the top of the other end of the clamping assembly 2. A reading camera 303 is installed on one side of the reading assembly 3. The light emitter 301 can provide laser emission, and the light receiving plate 306 collects and senses the laser beam. This facilitates the movement of the reading assembly 3 from bottom to top outside the burette during reading. When the light is no longer obstructed, the upward movement will stop quickly, thus providing effective positioning. At the same time, the high-definition lens 304 and the infrared sensor 308 are used to accurately position and record the scale, thereby effectively improving the accuracy of the reading.

[0031] like Figure 4 As shown, the clamping assembly 2 has connecting seats 203 installed at both ends, and the clamping rollers 202 are located on the side of the connecting seats 203. Multiple anti-slip strips 206 are distributed on the outer side of the connecting seats 203. The connecting seats 203 can be used for holding and installing parts, and the anti-slip strips 206 can provide an effective anti-slip effect.

[0032] like Figure 4As shown, a rotating shaft 208 is installed on one side of the connecting seat 203. The inner side of the rotating shaft 208 passes through the inner side of the clamping roller 202, and one end of the rotating shaft 208 passes through the inner side of the connecting seat 203. One end of the rotating shaft 208 is connected to one end of the micro motor 207. The rotating shaft 208 can provide a transmission connection, which facilitates the rotation of the rotating shaft 208 and the clamping roller 202 by driving the micro motor 207, thereby providing automatic lifting and adjustment control and precise positioning reading effect.

[0033] like Figure 4 As shown, one end of the light emitter 301 is fixedly connected to a first side bracket 302, and the bottom of the first side bracket 302 is fixedly connected to one end of the clamping assembly 2. The first side bracket 302 provides a stable mounting function for the light emitter 301, which is conducive to stable light emission.

[0034] like Figure 4 As shown, a high-definition lens 304 is provided at one end of the reading camera 303. The high-definition lens 304 is located on the side of the burette 1. The high-definition lens 304 can provide effective lens shooting, which is conducive to providing accurate data shooting, viewing readings and recording effects.

[0035] like Figure 5 As shown, a display 305 is fixedly connected to the top of the reading camera 303, and a fixing rod is connected between the top of the reading camera 303 and the bottom of the display 305. The display 305 can identify and analyze the detected scale and convert it into numbers for display, thereby facilitating quick data viewing.

[0036] like Figure 4 As shown, a second side bracket 307 is fixedly installed on the outer side of the light receiving plate 306. The bottom of the second side bracket 307 is fixedly connected to the other end of the clamping assembly 2. The light receiving plate 306 can be installed through the second side bracket 307, thereby providing stable light reception and infrared sensing effects, which helps to reduce errors.

[0037] like Figure 6 As shown, a third side bracket 310 is fixedly installed at the bottom of the reading camera 303. A connecting rod 309 is installed at one end of the third side bracket 310. The two ends of the connecting rod 309 are movably connected to the connecting seat 203. The third side bracket 310 can provide stable support for the reading camera 303, which is conducive to accurate shooting. The connecting rod 309 can provide support for the third side bracket 310, and its movement with the connecting seat 203 can avoid affecting the clamping function.

[0038] like Figure 3As shown, the burette 1 has an inlet 104 at the top and a titration head 105 at the bottom. The inlet 104 facilitates the loading of the titrant into the inner tube 102 to prepare for titration. The titration head 105 allows the liquid to be dripped out to achieve the titration effect. The titration head 105 is equipped with a piston adjustment component, which enables the titration speed adjustment function.

[0039] like Figure 3 As shown, a transparent outer tube 101 is provided on the outside of the burette 1. An upper limit plate 106 is installed at one end of the transparent outer tube 101, and a lower limit plate 107 is installed at the other end of the transparent outer tube 101. The transparent outer tube 101 can provide external support and facilitate reading. The upper limit plate 106 and the lower limit plate 107 can effectively limit the clamping assembly 2 at both ends, which helps to improve the stability.

[0040] In this invention, the burette with automatic reading function is first supported by the transparent outer tube 101, which also facilitates reading. The upper limit plate 106 and lower limit plate 107 effectively limit the clamping assembly 2 at both ends, improving stability. The inner tube 102 holds the liquid to be titrated, and the scale 103 provides a scale reading function. The clamping bracket 201 provides effective clamping support. The clamping roller 202 clamps the burette to the outside, and the adjusting rod 204, in conjunction with the tension spring 205, retracts to stably clamp the clamping assembly 2 to the outer wall of the burette 1. The quick assembly and disassembly of the clamping assembly 2 facilitates efficient installation and disassembly when automatic reading is needed, and reduces obstruction when reading is not required, providing convenient operation. The connecting seat 203 provides a handle for easy handling and adjustment of the components. The installation serves several purposes: the anti-slip strip 206 provides effective anti-slip properties, and the rotating shaft 208 provides a transmission connection, facilitating the rotation of the rotating shaft 208 and the clamping roller 202 via the micro motor 207. This enables automatic lifting and adjustment control, and precise positioning for reading. The light emitter 301 emits laser light, and the high-definition lens 304 captures images, facilitating accurate data capture, reading, and recording. The light receiver 306 collects and senses the laser beam, allowing the reading component 3 to be moved from bottom to top outside the burette during reading. It stops moving quickly when there is no light obstruction, providing effective positioning. Simultaneously, the high-definition lens 304 and infrared sensor 308 accurately position and record the scale, further improving reading accuracy.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic reading burette, comprising a burette (1), characterized in that: A clamping assembly (2) is provided on the outside of the burette (1), and a reading assembly (3) is provided on the outside of the clamping assembly (2). An inner tube (102) is provided on the inside of the burette (1). Multiple scales (103) are evenly distributed on the outer wall of the inner tube (102). A clamping frame (201) is provided on the outside of the clamping assembly (2). Clamping rollers (202) are installed at both ends of the clamping assembly (2). Two adjusting rods (204) are movably passed through the side of the clamping assembly (2). Tension springs (205) are provided on the outside of the two adjusting rods (204). One end of the clamping assembly (2) is provided with a light emitter (301), the other end of the clamping assembly (2) is provided with a light receiving plate (306), an infrared sensor (308) is installed on the top of the other end of the clamping assembly (2), and a reading camera (303) is provided on one side of the reading assembly (3).

2. The burette with automatic reading according to claim 1, characterized in that: The clamping assembly (2) has connecting seats (203) installed at both ends, the clamping roller (202) is located on the side of the connecting seat (203), and a plurality of anti-slip strips (206) are distributed on the outer side of the connecting seat (203).

3. The burette with automatic reading according to claim 2, characterized in that: A rotating shaft (208) is installed on one side of the connecting seat (203). The inner side of the rotating shaft (208) passes through the inner side of the clamping roller (202). One end of the rotating shaft (208) passes through the inner side of the connecting seat (203). One end of the rotating shaft (208) is connected to one end of the micro motor (207).

4. The burette with automatic reading according to claim 1, characterized in that: One end of the light emitter (301) is fixedly connected to a first side mount (302), and the bottom of the first side mount (302) is fixedly connected to one end of the clamping assembly (2).

5. The burette with automatic reading according to claim 1, characterized in that: A high-definition lens (304) is provided at one end of the reading camera (303), and the high-definition lens (304) is located on the side of the burette (1).

6. The burette with automatic reading according to claim 1, characterized in that: The top of the reading camera (303) is fixedly connected to the display (305), and the top of the reading camera (303) and the bottom of the display (305) are connected by a fixing rod.

7. The burette with automatic reading according to claim 1, characterized in that: A second side bracket (307) is fixedly installed on the outer side of the light receiving plate (306), and the bottom of the second side bracket (307) is fixedly connected to the other end of the clamping assembly (2).

8. The burette with automatic reading according to claim 2, characterized in that: The bottom of the reading camera (303) is fixedly mounted with a third side bracket (310), and a connecting rod (309) is installed at one end of the third side bracket (310). The two ends of the connecting rod (309) are movably connected to the connecting seat (203).

9. The burette with automatic reading according to claim 1, characterized in that: The burette (1) is provided with an inlet (104) at the top and a burette head (105) at the bottom.

10. The burette with automatic reading according to claim 1, characterized in that: The burette (1) is provided with a transparent outer tube (101) on the outside. One end of the transparent outer tube (101) is equipped with an upper limit plate (106), and the other end of the transparent outer tube (101) is equipped with a lower limit plate (107).

Citation Information

Patent Citations

  • Reading auxiliary device of burette

    CN209014537U