An auxiliary device for accurate reading of a burette

Abstract

This invention proposes an auxiliary device for accurate burette reading, comprising a clamping assembly with a clamping cavity formed within it for holding the burette. The clamping assembly has a first mounting position and a second mounting position, which are opposite to each other and respectively connected to the clamping cavity. An optical component is located at the first mounting position, comprising a magnifying element and a transparent lens. The transparent lens has graduations, and the magnifying element is located between the transparent lens and the clamping cavity. A color contrast element is located at the second mounting position. By clamping the burette in the clamping cavity at its liquid level, the reading at the burette can be magnified through the transparent lens and magnifying lens at the first mounting position. The second mounting position is opposite to the first mounting position, and the color contrast element at the second mounting position acts as a background to enhance color contrast, facilitating accurate burette reading.

Description

Technical Field

[0001] This utility model relates to the field of burette technology, specifically to an auxiliary device for accurate burette reading. Background Technology

[0002] Current burette readings rely on the operator visually reading the scale corresponding to the liquid level, which presents the following problems: reading deviations occur due to different eye positions; the scale and liquid interface are difficult to distinguish, regardless of whether the solution is colorless or colored; the burette angle needs frequent adjustment for reading; the method of holding the burette in one hand and a piece of paper in the other is prone to shaking, affecting observation; the burette's own scale is not precise, requiring estimation of the last digit, which involves subjective judgment, leading to inconsistencies between estimates and affecting experimental results. Utility Model Content

[0003] This invention addresses one of the problems existing in the prior art to a certain extent. Therefore, one objective of this invention is to provide an auxiliary device for accurate reading of burettes, which facilitates accurate reading of burettes.

[0004] The above objective is achieved through the following technical solution:

[0005] An auxiliary device for accurate reading of a burette includes a clamping assembly with a clamping cavity formed within it for clamping the burette. The clamping assembly has a first mounting position and a second mounting position, which are opposite to each other and communicate with the clamping cavity. An optical component is located at the first mounting position, comprising a magnifying element and a transparent lens. The transparent lens has graduations, and the magnifying element is located between the transparent lens and the clamping cavity. A color contrast element is located at the second mounting position.

[0006] As a further improvement of this utility model, a first mounting member is provided at the first mounting position, the optical component is detachably mounted on the first mounting member, a first through hole is provided on the clamping component, a second through hole is formed on the first mounting member, and the second through hole communicates with the clamping cavity through the first through hole.

[0007] As a further improvement of this utility model, a first mounting cavity with an upward-facing first opening is provided on the first mounting member. The first mounting cavity is connected to the second through hole. The magnifying member is installed in the first mounting cavity through the first opening. The magnifying member includes a carrier and a magnifying lens installed on the carrier. When the magnifying lens is installed in the first mounting cavity through the carrier, the magnifying lens is at the second through hole.

[0008] As a further improvement of this utility model, an observation channel is formed by extending from the second through hole in a direction away from the clamping cavity, and the transparent lens is located at the second through hole, with the transparent lens at one end of the second through hole near the observation channel.

[0009] As a further improvement of this utility model, it also includes a first lifting bolt, which extends out of the clamping assembly onto a first mounting platform, forming the first mounting position on the first mounting platform. A first threaded hole is provided on the first mounting platform, and the first lifting bolt is connected to the first threaded hole. The first lifting bolt extends through the first threaded hole into the first mounting position and abuts against the first mounting member to adjust the height position of the first mounting member at the first mounting position.

[0010] As a further improvement of this utility model, a second mounting member is provided at the second mounting position, and a second mounting cavity is provided on the second mounting member. The color contrast member is installed in the second mounting cavity. A third through hole is provided on the second mounting member, and the third through hole is connected to the first through hole. When the color contrast member is installed in the second mounting cavity, the color contrast member is located at the third through hole.

[0011] As a further improvement of this utility model, it also includes a second lifting bolt, which extends out of the clamping assembly to form a second mounting platform, and forms a second mounting position on the second mounting platform. A second threaded hole is provided on the second mounting platform. The second lifting bolt is connected to the second threaded hole. The second lifting bolt extends through the second threaded hole into the second mounting position and abuts against the second mounting member to adjust the height position of the second mounting member at the second mounting position.

[0012] As a further improvement of this utility model, the clamping assembly includes a first clamp and a second clamp, one end of the first clamp and one end of the second clamp are rotatably connected, the first clamp and the second clamp are rotatable to a clamping state and an open state, and when the first clamp and the second clamp are rotated to the clamping state, the clamping cavity is formed between the first clamp and the second clamp.

[0013] As a further improvement of this utility model, a first connecting end is formed at the other end of the first clamping sleeve, and a second connecting end is formed at the other end of the second clamping sleeve. A first connecting hole is provided at the first connecting end, and a second connecting hole is provided at the second connecting end. It also includes a locking nut and a locking bolt. The locking nut passes through the first connecting hole and the second connecting hole, and the locking bolt is engaged with the locking nut to keep the first clamping sleeve and the second clamping sleeve in a clamped state.

[0014] As a further improvement of this utility model, a first connecting surface is formed at the first connecting end facing the second sleeve, and a second connecting surface is formed at the second connecting end facing the first sleeve. A first magnet layer is provided at the first connecting surface, and a second magnet layer is provided at the second connecting surface.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. This utility model proposes an auxiliary device for accurate reading of a burette. The burette is clamped by a clamping cavity 11 and held at the liquid level line of the burette. The reading at the burette can be magnified by a transparent lens and a magnifying glass at the first mounting position. Since the second mounting position is arranged opposite to the first mounting position and a color contrast element is provided at the second mounting position, the setting of the color contrast element is equivalent to setting a background plate behind the burette to enhance the color contrast, which facilitates accurate reading of the burette. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an auxiliary device for accurate reading of a burette in one of the embodiments;

[0018] Figure 2 This is a schematic diagram of the clamping component in the embodiment;

[0019] Figure 3 This is another structural schematic diagram of the clamping component in the embodiment;

[0020] Figure 4 This is a cross-sectional view of the clamping component in the embodiment;

[0021] Figure 5 This is another structural schematic diagram of the clamping assembly in the embodiment (the first and second mounting parts are omitted here);

[0022] Figure 6 This is a cross-sectional view of the clamping assembly in the embodiment (the first and second mounting components are omitted here).

[0023] Figure 7 This is a schematic diagram of the structure of the second mounting component in the embodiment;

[0024] Figure 8 This is a cross-sectional view of the second mounting component in the embodiment;

[0025] Figure 9 This is a schematic diagram of the enlarged component in the embodiment;

[0026] Figure 10 This is a cross-sectional view of the first mounting component in the embodiment;

[0027] Figure 11 This is an exploded view of the clamping components in the embodiment;

[0028] Figure 12 This is another exploded view of the clamping component in the embodiment;

[0029] Figure 13 This is a schematic diagram of the transparent lens in the embodiment;

[0030] Figure 14 This is a schematic diagram of the magnifying component and transparent lens structure in the embodiment. Detailed Implementation

[0031] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0032] like Figure 1-14 An auxiliary device for accurate reading of a burette includes a clamping assembly 1, in which a clamping cavity 11 is formed for clamping a burette 100. A first mounting position 12 and a second mounting position 13 are provided on the clamping assembly 1, and the first mounting position 12 and the second mounting position 13 are arranged opposite to each other and are respectively connected to the clamping cavity 11. An optical assembly 3 is provided at the first mounting position 12, the optical assembly 3 including a magnifying element 31 and a transparent lens 32. A scale bar is provided on the transparent lens 32, and the magnifying element 31 is located between the transparent lens 32 and the clamping cavity 11. A color contrast element 5 is provided at the second mounting position 13.

[0033] This invention proposes an auxiliary device for accurate reading of a burette 100. The burette 100 is held in place by a clamping cavity 11 at its liquid level. A transparent lens 32 and a magnifying glass at the first mounting position 12 magnify the reading on the burette 100. Since the second mounting position 13 is positioned opposite to the first mounting position 12 and has a color contrast element 5, this effectively acts as a background plate behind the burette 100 to enhance color contrast, facilitating accurate reading. This avoids the inaccurate readings caused by hand-held burette readings due to shaking.

[0034] The color contrast feature increases contrast, making it easier to read and preventing inaccurate readings due to difficulty in distinguishing the scale lines from the liquid interface or environmental factors.

[0035] The transparent lens has graduated strips, and when reading a burette, the last digit can be determined using a finer graduated strip on the lens, making the reading more accurate.

[0036] Because there is a scale bar at the transparent lens 32, the magnified scale of the magnifying glass is reflected in the transparent lens 32, making reading easier and more accurate, thus improving reading precision. Figure 14 The dotted line represents the liquid level line. After passing through the magnifying lens, the liquid level reading is between 22.2 and 22.3 ml. Since there is a scale bar at the transparent lens, 22.2-22.3 is divided into 18 equal divisions by the scale of the transparent lens. And the liquid level line is at the 8th division of the transparent lens. Therefore, 0.1 ÷ 18 × 8 = 0.044. So the liquid level reading is 22.2 + 0.044, which is 22.244.

[0037] In some embodiments, the color contrast element 5 includes a black contrast card, a white contrast card, or a black-and-white contrast card. The black-and-white contrast card is a contrast card with a black front and a white back.

[0038] A first mounting member 2 is provided at the first mounting position 12. The optical component 3 is detachably mounted on the first mounting member 2. A first through hole 14 is provided on the clamping component 1. A second through hole 21 is formed on the first mounting member 2. The second through hole 21 is connected to the clamping cavity 11 through the first through hole 14.

[0039] In this embodiment, the first mounting component 2 is mounted vertically at the first mounting position 12.

[0040] The first through hole 14 is located at the position of the clamping member facing the first mounting member 2.

[0041] The second through hole 21 penetrates the first mounting member 2 in the lateral direction to communicate with the first through hole 14.

[0042] The first mounting member 2 is provided with a first mounting cavity 24 having an upward-facing first opening 23. The first mounting cavity 24 is connected to the second through hole 21. The magnifying member 31 is installed in the first mounting cavity 24 through the first opening 23. The magnifying member 31 includes a carrier 311 and a magnifying lens 312 installed on the carrier 311. When the magnifying lens 312 is installed in the first mounting cavity 24 through the carrier 311, the magnifying lens 312 is at the second through hole 21.

[0043] The magnifying element 31 is detachably installed in the first mounting cavity 24 so that magnifying elements 31 with different magnifications can be installed according to different situations.

[0044] The magnifying lens 312 is mounted on the carrier 311, and the height of the carrier 311 in the vertical direction is greater than the height of the first mounting cavity 24 in the vertical direction. When the magnifying component 31 is mounted in the first mounting cavity 24, the upper end of the carrier 311 will protrude from the first opening 23, which makes it convenient to take the magnifying component 31 out of the first mounting cavity 24, and also makes it convenient to install and place the magnifying component 31 into the first mounting cavity 24.

[0045] An observation channel 22 is formed at the second through hole 21 in a direction away from the clamping cavity 11. The transparent lens 32 is at the second through hole 21, and the transparent lens 32 is at one end of the second through hole 21 near the observation channel 22.

[0046] In this embodiment, the observation channel 22 is connected to the first through hole 14 through the second through hole 21.

[0047] Through the observation channel 22, and via the transparent lens 32 and the magnifying lens 312, the reading at the burette 100 can be magnified for accurate reading. The observation channel 22 also prevents external light sources from affecting the reading.

[0048] In this embodiment, the transparent lens 32 is also detachably installed at the second through hole 21.

[0049] In some embodiments, a first annular groove is formed at the second through hole 21, and the transparent lens 32 is engaged in the first annular groove.

[0050] In some embodiments, the first mounting member 2 is provided with a third mounting cavity having an upward third opening, the third mounting cavity being connected to the second through hole 21, wherein the transparent lens 32 includes a frame and a transparent lens 32 body, the transparent lens 32 body being mounted on the frame, and when the frame extends into the third mounting cavity through the third opening, the transparent lens 32 body is at the second through hole 21.

[0051] It also includes a first lifting bolt 61, which extends from the clamping assembly 1 onto a first mounting platform 15, forming a first mounting position 12 on the first mounting platform 15. A first threaded hole 611 is provided on the first mounting platform 15, and the first lifting bolt 61 engages with the first threaded hole 611 for connection.

[0052] The first lifting bolt 61 extends through the first threaded hole 611 into the first mounting position 12 and abuts against the first mounting member 2 to adjust the height position of the first mounting member 2 at the first mounting position 12.

[0053] In this embodiment, a first mounting groove 151 is formed by recessing the first mounting platform 15. The lower end of the first mounting member 2 extends into the first mounting groove 151, and the first mounting member 2 can move up and down in the first mounting groove 151, or the first mounting member 2 can move up and down in the first mounting position 12. Furthermore, when the first mounting member 2 moves up and down in the first mounting position 12, it will not disengage from the first mounting groove 151.

[0054] In this embodiment, the height of the first mounting component 2 at the first mounting position 12 is adjusted by the first lifting bolt 61, so that the observation channel 22, magnifying component 31 and transparent lens 32 on the first mounting component 2 are adjusted to a suitable height, so that the observation channel 22, magnifying component 31 and transparent lens 32 are connected to the first through hole 14 and aligned with the position of the burette 100 where the reading is required, so as to facilitate accurate reading.

[0055] A second mounting member 4 is provided at the second mounting position 13, and a second mounting cavity 44 is formed on the second mounting member 4. The color contrast member 5 is installed in the second mounting cavity 44. A third through hole 42 is provided on the second mounting member 4. The third through hole 42 is connected to the first through hole 14. When the color contrast member 5 is installed in the second mounting cavity 44, the color contrast member 5 is located at the third through hole 42.

[0056] In this embodiment, the third through hole 42 penetrates the second mounting member 4.

[0057] In this embodiment, the observation channel 22 is connected to the third through hole 42 through the second through hole 21 and the first through hole 14 in sequence.

[0058] In this embodiment, the second mounting member 4 is fixedly mounted at the second mounting position 13. In other embodiments, the second mounting member 4 is detachably mounted at the second mounting position 13.

[0059] In some embodiments, a second opening 43 is provided on the side wall of the second mounting member 4, and the second opening 43 communicates with the second mounting cavity 44. The color contrasting member 5 is installed in the second mounting cavity 44 through the second opening 43. The second opening 43 may be located on the left or right side wall of the second mounting member 4.

[0060] It also includes a second lifting bolt 62, which extends from the clamping assembly 1 to form a second mounting platform 16. A second mounting position 13 is formed on the second mounting platform 16. A second threaded hole 621 is provided on the second mounting platform 16, and the second lifting bolt 62 is engaged with the second threaded hole 621 for connection.

[0061] The second lifting bolt 62 extends into the second mounting position 13 through the second threaded hole 621 and abuts against the second mounting member 4 to adjust the height position of the second mounting member 4 at the second mounting position 13.

[0062] In this embodiment, a second mounting groove 161 is formed by recessing the second mounting platform 16. The lower end of the second mounting member 4 extends into the second mounting groove 161, and the second mounting member 4 can move up and down in the second mounting groove 161, or the second mounting member 4 can move up and down in the second mounting position 13. Furthermore, when the second mounting member 4 moves up and down in the second mounting position 13, it will not disengage from the second mounting groove 161.

[0063] In this embodiment, the height of the second mounting component 4 at the second mounting position 13 is adjusted by the second lifting bolt 62, so that the color contrast component 5 on the second mounting component 4 is adjusted to a suitable height, so that the color contrast component 5 is located directly behind the burette 100 where the reading is required, to ensure accurate reading.

[0064] The color contrast element 5 is shorter in the height direction, meaning its height is less than that of the third through hole 42. The color contrast element 5 can be adjusted to a suitable height using the second lifting bolt 62 for accurate readings.

[0065] The clamping assembly 1 includes a first clamp 17 and a second clamp 18. One end of the first clamp 17 is rotatably connected to one end of the second clamp 18. The first clamp 17 and the second clamp 18 can be rotated to a clamping state and an open state. When the first clamp 17 and the second clamp 18 are rotated to the clamping state, the clamping cavity 11 is formed between the first clamp 17 and the second clamp 18.

[0066] In this embodiment, the clamping cavity 11 is cylindrical to match the shape of the burette 100.

[0067] In this embodiment, the first sleeve 17 and the second sleeve 18 are connected by a hinge shaft.

[0068] In this embodiment, a first arc-shaped cavity 171 is formed at the first clamping sleeve 17; a second arc-shaped cavity 181 is formed at the second clamping sleeve 18; when the first clamping sleeve 17 and the second clamping sleeve 18 rotate to the clamping state, the clamping cavity 11 is formed by connecting the first arc-shaped cavity 171 of the first clamping sleeve 17 and the second arc-shaped cavity 181 of the second clamping sleeve 18.

[0069] In this embodiment, a first rubber layer is provided at the first arc-shaped cavity 171 and a second rubber layer is provided at the second arc-shaped cavity 181. When the clamping cavity 11 clamps the burette 100, the first rubber layer and the second rubber layer cooperate with the burette 100 to clamp it, thereby avoiding bumping or damaging the burette 100 and preventing the burette from rotating in the clamping cavity.

[0070] In this embodiment, the first mounting position 12 is on the first sleeve 17, and the second mounting position 13 is on the second sleeve 18.

[0071] A first connecting end 172 is formed at the other end of the first clamping sleeve 17, and a second connecting end 182 is formed at the other end of the second clamping sleeve 18. A first connecting hole 1721 is provided at the first connecting end 172, and a second connecting hole 1821 is provided at the second connecting end 182. The clamping sleeve also includes a locking nut 71 and a locking bolt 72. The locking nut 71 passes through the first connecting hole 1721 and the second connecting hole 1821, and the locking bolt 72 is engaged with the locking nut 71 to keep the first clamping sleeve 17 and the second clamping sleeve 18 in a clamped state.

[0072] A first connecting surface 173 is formed at the first connecting end 172 facing the second jacket 18, and a second connecting surface is formed at the second connecting end 182 facing the first jacket 17. A first magnet layer is provided at the first connecting surface 173, and a second magnet layer is provided at the second connecting surface.

[0073] When the first clamping sleeve 17 and the second clamping sleeve 18 rotate to the clamping state, the first magnet layer at the first connecting surface 173 and the second magnet layer at the second connecting surface are magnetically attracted to maintain a basic clamping state, i.e., a pre-clamping state. Then, the first clamping sleeve 17 and the second clamping sleeve 18 can be locked by the cooperation of the locking nut 71 and the locking bolt 72, maintaining the clamping state of the first clamping sleeve 17 and the second clamping sleeve 18, so that the first clamping sleeve 17 and the second clamping sleeve 18 are maintained in a stable clamping state.

[0074] In some embodiments, a first engaging groove is provided on the first sleeve 17, and a first protrusion is formed on the first mounting member. The first protrusion engages with the first engaging groove to connect the first mounting member to the first sleeve 17.

[0075] In some embodiments, the second sleeve 18 is further provided with a second engaging groove, and a second protrusion is formed on the second mounting member. The second protrusion engages with the second engaging groove to connect the second mounting member to the second sleeve 18.

[0076] The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present application should be considered within the scope of protection of this patent.

Claims

1. An auxiliary device for accurate reading of a burette, characterized in that, The device includes a clamping assembly, within which a clamping cavity is formed for clamping a burette. The clamping assembly has a first mounting position and a second mounting position, which are opposite to each other and respectively connected to the clamping cavity. An optical component is provided at the first mounting position, comprising a magnifying element and a transparent lens. The transparent lens has graduations, and the magnifying element is located between the transparent lens and the clamping cavity. A color contrast element is provided at the second mounting position.

2. The auxiliary device for accurate reading of a burette according to claim 1, characterized in that, A first mounting member is provided at the first mounting position, and the optical component is detachably mounted on the first mounting member. A first through hole is provided on the clamping component, and a second through hole is formed on the first mounting member. The second through hole communicates with the clamping cavity through the first through hole.

3. The auxiliary device for accurate reading of a burette according to claim 2, characterized in that, The first mounting component has a first mounting cavity with an upward-facing first opening. The first mounting cavity is connected to the second through hole. The magnifying component is mounted in the first mounting cavity through the first opening. The magnifying component includes a carrier and a magnifying lens mounted on the carrier. When the magnifying lens is mounted in the first mounting cavity through the carrier, the magnifying lens is at the second through hole.

4. The auxiliary device for accurate reading of a burette according to claim 2, characterized in that, An observation channel is formed at the second through hole in a direction away from the clamping cavity. The transparent lens is at the second through hole and at one end of the second through hole near the observation channel.

5. The auxiliary device for accurate reading of a burette according to claim 3, characterized in that, It also includes a first lifting bolt, which extends from the clamping assembly onto a first mounting platform, forming the first mounting position on the first mounting platform. A first threaded hole is provided on the first mounting platform, and the first lifting bolt engages with the first threaded hole. The first lifting bolt extends through the first threaded hole into the first mounting position and abuts against the first mounting member to adjust the height position of the first mounting member at the first mounting position.

6. The auxiliary device for accurate reading of a burette according to claim 2, characterized in that, A second mounting component is provided at the second mounting position, and a second mounting cavity is provided on the second mounting component. The color contrast component is installed in the second mounting cavity. A third through hole is provided on the second mounting component, and the third through hole is connected to the first through hole. When the color contrast component is installed in the second mounting cavity, the color contrast component is located at the third through hole.

7. The auxiliary device for accurate reading of a burette according to claim 6, characterized in that, It also includes a second lifting bolt, which extends out of the clamping assembly to form a second mounting platform, and forms a second mounting position on the second mounting platform. A second threaded hole is provided on the second mounting platform. The second lifting bolt is engaged with the second threaded hole and extends through the second threaded hole to the second mounting position to abut against the second mounting member, so as to adjust the height position of the second mounting member at the second mounting position.

8. The auxiliary device for accurate reading of a burette according to claim 1, characterized in that, The clamping assembly includes a first clamp and a second clamp. One end of the first clamp is rotatably connected to one end of the second clamp. The first clamp and the second clamp can be rotated to a clamping state and an open state. When the first clamp and the second clamp are rotated to the clamping state, the clamping cavity is formed between the first clamp and the second clamp.

9. The auxiliary device for accurate reading of a burette according to claim 8, characterized in that, A first connecting end is formed at the other end of the first clamping sleeve, and a second connecting end is formed at the other end of the second clamping sleeve. A first connecting hole is provided at the first connecting end, and a second connecting hole is provided at the second connecting end. The clamping sleeve also includes a locking nut and a locking bolt. The locking nut passes through the first connecting hole and the second connecting hole, and the locking bolt is engaged with the locking nut to keep the first clamping sleeve and the second clamping sleeve in a clamped state.

10. An auxiliary device for accurate reading of a burette according to claim 9, characterized in that, A first connecting surface is formed at the first connecting end facing the second sleeve, and a second connecting surface is formed at the second connecting end facing the first sleeve. A first magnet layer is provided at the first connecting surface, and a second magnet layer is provided at the second connecting surface.

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