Abbe refractometer

Abstract

The utility model provides an Abbe refractometer. The Abbe refractometer comprises an Abbe refractometer main body comprising a refractor and a protection box comprising a fixed seat and a protection box main body, the fixed seat is fixedly connected with the abbe refractometer main body; and the protection box main body is rotatably connected with the fixed seat and is used for rotating to a position above the refractor to cover the refractor. According to the Abbe refractometer provided by the invention, the fixing seat and the protection box main body capable of rotating around the fixing seat are arranged on the Abbe refractometer main body, and the protection box main body can rotate to the position above the refractor, so that the refractor is protected, the refractor is prevented from being influenced by dust, and meanwhile, the refractor can be prevented from being scratched.

Description

Technical Field

[0001] The utility model belongs to the field of refractive index detection, in particular to an Abbe refractometer. Background Art

[0002] Abbe refractometer is made by using the total reflection principle, and can measure the refractive index and average dispersion of transparent, semi-transparent liquids or solids (mainly transparent liquids). Many pure substances have a certain refractive index. If there are impurities in them, the refractive index will change and deviate. The more impurities there are, the greater the deviation. Therefore, by measuring the refractive index, the concentration of liquid substances (the percentage of the weight of soluble substances in the total weight, brix) can be determined. If the Abbe refractometer is connected to a thermostat, the refractive index of substances at a temperature of 0℃-70℃ can be measured.

[0003] The Abbe refractometer is mainly composed of a high-refractive-index prism (made of lead glass or synthetic cubic zirconia), a prism reflector, a light-entering lens, a scale (inner scale or outer scale) and an eyepiece. It is an instrument that uses the light generated by a high-refractive-index prism, a prism reflector and a light-entering lens to test the concentration of liquids. It is used to measure the refractive index, birefringence and optical characteristics.

[0004] Existing Abbe refractometers generally do not have a fixed storage device. In most cases, the Abbe refractometer is placed on a laboratory operating table or a shelf. After being placed for a long time, dust is easily accumulated on the outside of the refractometer, especially on the light input prism seat. Therefore, the dust on the outside of the refractometer and the light input prism seat needs to be cleaned every time it is used, which is time-consuming and laborious.

[0005] The prism material of the Abbe refractometer is required to meet two conditions: single refraction and high refractive index. Most prisms are made of lead glass (refractive index is usually 1.86-1.96), but lead glass prisms are very soft and easily damaged, and scratches are most likely to occur when glass contacts each other. Utility Model Content

[0006] The purpose of the present application is to provide an Abbe refractometer, aiming to solve the problem in the prior art that the Abbe refractometer has no fixed storage device, which causes dust to easily accumulate on the light input prism seat and the refracting mirror to be easily scratched.

[0007] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide an Abbe refractometer, including: an Abbe refractometer body, including a refracting mirror; a protective box, including a fixing seat and a protective box body; the fixing seat is fixedly connected to the Abbe refractometer body; the protective box body is rotatably connected to the fixing seat and is used to rotate to the top of the refracting mirror to cover the refracting mirror.

[0008] Optionally, the protection box body is provided with an inner cavity, and a light source is provided in the inner cavity.

[0009] Optionally, the protection box further comprises a connecting plate, a first end of the connecting plate is hinged to the fixing seat, and a second end of the connecting plate is fixed to the protection box body.

[0010] Optionally, a steering shaft is provided on the fixing seat, and the first end of the connecting plate is rotatably connected to the steering shaft.

[0011] Optionally, a driving shaft is rotatably provided on the fixing seat, and a transmission assembly is provided between the driving shaft and the steering shaft; when the driving shaft rotates, the steering shaft is driven to rotate through the transmission assembly, thereby driving the protection box body to rotate.

[0012] Optionally, the transmission assembly includes one of a gear drive, a belt drive, and a chain drive.

[0013] Optionally, a limit plate is provided on the drive shaft, a limit column is provided on the fixed seat, and the drive shaft is located between the limit column and the steering shaft; when the drive shaft rotates, the limit column and / or the steering shaft can abut the limit plate to limit the drive shaft.

[0014] Optionally, the fixed seat also includes a fixed plate and a lifting shaft, and the fixed plate is respectively penetrated by a lifting shaft, a driving shaft and a steering shaft; one end of the lifting shaft located inside the fixed seat is connected to the Abbe refractometer through an elastic device; when the lifting shaft is used to lift the fixed plate, the protection box body and the driving shaft can be lifted at the same time through the connecting plate, and the protection box body can be rotated around the steering shaft by operating the driving shaft.

[0015] Optionally, a power supply is also included, and the power supply is connected to the light source; the power supply can be a built-in power supply or an external power supply.

[0016] Optionally, a built-in power supply is disposed in the inner cavity.

[0017] The Abbe refractometer provided in the present application is provided with a fixing seat and a protection box body that can rotate around the fixing seat on the Abbe refractometer body. The protection box body can be rotated above the refracting mirror to protect the refracting mirror, prevent the refracting mirror from being affected by dust, and also prevent it from being scratched. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or exemplary technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 is a stereogram of the Abbe refractometer provided in an embodiment of the present application;

[0020] Figure 2 yes Figure 1 Abbe refractometer front view;

[0021] Figure 3 yes Figure 2 Sectional view along line AA;

[0022] Figure 4 yes Figure 1 Right side view of Abbe refractometer;

[0023] Figure 5 yes Figure 1 Abbe refractometer front view;

[0024] Figure 6 for Figure 5 Sectional view along line CC.

[0025] Among them, the reference numerals in the figure are:

[0026] 10 Fixing seat 11 Steering shaft 12 Driving shaft

[0027] 13 Transmission assembly 14 Limit plate 15 Limit column

[0028] 16 fixed plate 17 lifting shaft 18 elastic device

[0029] 20 protection box body 21 inner cavity 211 light source

[0030] 30 Refracting mirror 40 Connecting plate 50 Abbe refractometer

[0031] 60 Power supply 70 Refraction prism seat 111 Rotation slot DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0033] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "first" and "second" are only used for the purpose of convenience of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0034] The Abbe refractometer is made by using the total reflection principle and can measure the refractive index and average dispersion of transparent, semi-transparent liquids or solids (mainly transparent liquids). One of the most important parts of the Abbe refractometer is the refractor 30, which is generally fixed on the refractive prism seat 70. When using the Abbe refractometer to detect the refractive index and average dispersion of a substance, the substance to be tested is placed on the refractive prism seat 70 and aligned with the refractor 30.

[0035] Example

[0036] The present embodiment provides an Abbe refractometer, comprising: an Abbe refractometer body, comprising a refracting mirror 30; a protective box, comprising a fixing seat 10 and a protective box body 20; the fixing seat 10 is fixedly connected to the Abbe refractometer body; the protective box body 20 is rotatably connected to the fixing seat 10 and is used to rotate above the refracting mirror 30 to cover the refracting mirror 30.

[0037] When implementing it, Figure 1-Figure 6 As shown: the fixing seat 10 is fixed on the refractive prism seat 70 of the Abbe refractometer body; the fixing seat 10 can be fixed on the refractive prism seat 70 of the Abbe refractometer body by screw fixing, glue connection, welding and other different methods. The specific method of fixing can be determined according to needs. This is all existing technology and will not be repeated here. When the fixing seat 10 is fixed on the refractive prism seat 70 of the Abbe refractometer body, the protective box body 20 can rotate around the fixing seat 10; when the Abbe refractometer is not needed, the protective box body 20 can be rotated to the top of the refractive mirror 30 on the refractive prism seat 70. The protective box body 20 can prevent the refractive mirror 30 from being covered with dust when not in use, and will not scratch the refractive mirror 30.

[0038] On the other hand, Figure 3As shown: when performing a refractive index test on a glass sample with a high light transmittance, the protective box body 20 can be rotated to a position where the refractor 30 is not blocked. Under natural light conditions, the refractive index test on the glass sample with a high light transmittance can be performed using an Abbe refractometer, which facilitates operation.

[0039] The Abbe refractometer provided by the present application is provided with a fixing seat 10 and a protection box body 20 that can rotate around the fixing seat 10 on the Abbe refractometer body. The protection box body 20 can be rotated to the top of the refractor 30 to protect the refractor 30 and prevent the refractor 30 from being affected by dust and scratched. Optionally, the protection box body 20 is provided with an inner cavity 21, and a light source 211 is provided in the inner cavity 21.

[0040] Optionally, a power supply 60 is further included, and the power supply 60 is connected to the light source 211; the power supply 60 can be a built-in power supply or an external power supply.

[0041] Optionally, a built-in power supply is disposed in the inner cavity 21 .

[0042] When implementing it, Figure 3 As shown: the protection box body 20 is provided with an inner cavity 21. When the protection box body 20 rotates around the fixing seat 10 to the top of the refractor 30, the refractor 30 is located below the inner cavity 21, so that the refractor 30 can be better prevented from being scratched. A light source 211 and a power supply 60 that can power the light source 211 are arranged in the inner cavity 21. When testing a black glass sample with low transmittance, the protection box body 20 does not need to be opened (that is, the protection box body 20 is located above the refractor 30, and the light source 211 is located above the refractor 30). At this time, the inner cavity 21 of the protection box body 20 forms a small darkroom; turning on the light source 211 can increase the light input, making the field of view clear, thereby realizing the refractive index measurement of the low transmittance glass sample. Optionally, the light source 211 is a light source 211 with adjustable brightness, and the brightness of the light source 211 can be adjusted according to the needs of testing samples with different transmittances. Optionally, the power source 60 is a rechargeable storage battery or a non-rechargeable dry cell, or may be an external power source, which supplies power to the light source 211 through a conductive wire connection.

[0043] Alternatively, if Figure 1 As shown: the protection box also includes a connecting plate 40, a first end of the connecting plate 40 is hinged to the fixing seat 10, and a second end of the connecting plate 40 is fixed to the protection box body 20.

[0044] Optionally, a steering shaft 11 is provided on the fixing seat 10 , and the first end of the connecting plate 40 is rotatably connected to the steering shaft 11 .

[0045] When implementing it, Figure 6As shown: a steering shaft 11 can be fixedly provided on the fixed seat 10, the first end of the connecting plate 40 is hinged to the steering shaft 11, and the second end of the connecting plate 40 is fixedly connected to the protection box body 20, so that the protection box body 20 can be rotated around the fixed seat 10 by operating the connecting plate 40; in this embodiment, optionally, the steering shaft 11 can be rotatably provided on the fixed seat 10, the first end of the connecting plate 40 is fixedly connected to the steering shaft 11, and the second end of the connecting plate 40 is fixedly connected to the protection box body 20, so that the protection box body 20 can be rotated around the fixed seat 10 by operating the connecting plate 40.

[0046] Optionally, a driving shaft 12 is rotatably provided on the fixing seat 10, and a transmission assembly 13 is provided between the driving shaft 12 and the steering shaft 11; when the driving shaft 12 rotates, the steering shaft 11 is driven to rotate through the transmission assembly, thereby driving the protection box body 20 to rotate.

[0047] When implementing it, Figure 6 As shown: a driving shaft 12 is rotatably arranged on the fixing seat 10, and the driving shaft 12 is preferably operated manually, and the upper end of the driving shaft 12 is exposed from the top of the fixing seat 10, and a steering knob is arranged on the upper end of the driving shaft 12, so as to facilitate manual operation by the user of the Abbe refractometer. A transmission assembly is arranged between the driving shaft 12 and the steering shaft 11, for example, a first external gear is arranged on the driving shaft 12, and a second external gear is arranged on the steering shaft 11, and the first external gear and the second external gear are meshed, so that when the user of the Abbe refractometer manually rotates the driving shaft 12, the steering shaft 11 can be rotated by gear transmission, so that the protection box body 20 can be driven to rotate around the steering shaft 11, so as to realize that the protection box body 20 is above the refractor 30 of the Abbe refractometer or not above the refractor 30 of the Abbe refractometer. Optionally, the transmission assembly 13 can also adopt a belt drive, a chain drive and other structures. However, in the small space of the fixing seat, it is still a better way to adopt a gear transmission method.

[0048] Optionally, a limit plate 14 is provided on the drive shaft 12, a limit column 15 is provided on the fixed seat 10, and the drive shaft 12 is located between the limit column 15 and the steering shaft 11; when the drive shaft 12 rotates, the limit column 15 and / or the steering shaft 11 can abut against the limit plate 14 to limit the drive shaft 12.

[0049] In specific implementation, a limit plate 14 is provided on the drive shaft 12, and the limit plate 14 can rotate with the drive shaft 12. A limit column 15 is provided on the fixed seat 10, and the drive shaft 12 is located between the limit column 15 and the steering shaft 11; optionally, the limit column 15, the drive shaft 12 and the steering shaft 11 are arranged on the same straight line. The limit plate 14 has a certain length, and when it rotates with the drive shaft 12, it can at least abut against the limit column 15, so that the maximum rotation angle of the protection box body 20 can be limited; when the limit plate 14 rotates with the drive shaft 12, it can also abut against the steering shaft 11, so that the maximum rotation angle of the protection box body 20 in both clockwise and counterclockwise directions can be limited. Optionally, the drive shaft 12 is located at the midpoint of the line connecting the limit column 15 and the steering shaft 11, so that the maximum angles of the protection box body 20 in clockwise and counterclockwise rotation are the same.

[0050] Optionally, the fixed seat 10 also includes a fixed plate 16 and a lifting shaft 17, and the lifting shaft 17, the driving shaft 12 and the steering shaft 11 are respectively passed through the fixed plate 16; one end of the lifting shaft 17 located inside the fixed seat 10 is connected to the Abbe refractometer through an elastic device 18; when the lifting shaft 17 is used to lift the fixed plate 16, the protection box body 20 and the driving shaft 12 can be lifted at the same time through the connecting plate 40, and the protection box body 20 can be rotated around the steering shaft 11 by operating the driving shaft 12.

[0051] When implementing it, Figure 6 As shown: a fixing plate 16 and a lifting shaft 17 are provided on the top of the fixing seat 10; optionally, the lifting shaft 17 can be arranged with an interference fit with the fixing plate 16; limiting parts can also be provided on both sides of the fixing plate on the lifting shaft 17, and the distance between the two limiting parts is greater than or equal to the thickness of the fixing plate 16; the fixing plate 16 can move along the axial direction of the lifting shaft 17 and move away from the fixing seat 10; one end of the lifting shaft 17 located inside the fixing seat 10 is connected to the Abbe refractometer through an elastic device 18, and the other end of the lifting shaft 17 is exposed outside the fixing plate 16; when a pulling force is applied to the lifting shaft 17 in the direction opposite to the Abbe refractometer and the lifting shaft 17 is lifted along the axial direction of the lifting shaft 17, the fixing plate 16 can be lifted along the moving direction of the lifting shaft 17, and the elastic device 18 deforms and stores energy; when the lifting shaft 17 is no longer forced, the elastic device 18 deforms and recovers to release energy, so that the lifting shaft 17 is reset, the fixing plate 16 is reset, and covers the top of the fixing seat 10. Optionally, the elastic device 18 is a spring. Optionally, the lifting shaft 17 and the limiting column 15 are the same component.

[0052] The driving shaft 12 and the steering shaft 11 are also provided with two limiting parts, and the two limiting parts on the driving shaft 12 and the steering shaft 11 are both arranged on both sides of the fixing plate 16. When the fixing plate 16 is lifted or reset by operating the lifting shaft 17, the driving shaft 12 and the steering shaft 11 can also move along the axial direction of both. When the driving shaft 12 and the steering shaft 11 move along the axial direction of both, they are always connected by the transmission assembly 13. Optionally, a rotation groove 111 is provided on the fixing seat 10, and the steering shaft 11 has a certain length. When the steering shaft 11 is in the original position and moves along its axial direction, one end of the steering shaft 11 is always located in the rotation groove 111, that is: by lifting the lifting shaft 17, the fixing plate 16 drives the driving shaft and the steering shaft 11 to move along its axial direction, and the steering shaft 11 only moves along its axial direction, and it always serves as the rotation axis of the protection box body 20.

[0053] With the above design, when the fixing seat 10 is set on the Abbe refractometer, the elastic device is connected to the Abbe refractometer at the same time, and the lifting shaft 17 is raised along the force facing away from the fixing plate 16, which can simultaneously raise the driving shaft 12 and the steering shaft, thereby raising the connecting plate 40 and raising the protection box body 20; the driving shaft 12 is rotated, and the protection box body 20 can be rotated through the transmission assembly 13. Depending on whether the Abbe refractometer is used, the protection box body 20 can be rotated to different angles. During this process, the protection box body is always not in contact with the refractor 30, so as to avoid scratching the refractor.

[0054] The above are only optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An Abbe refractometer, characterized in that: include: An Abbe refractometer body, including a refracting mirror (30); A protection box, comprising a fixing seat (10) and a protection box body (20); The fixing seat (10) is fixedly connected to the Abbe refractometer body; The protection box body (20) is rotatably connected to the fixing seat (10) and is used to rotate above the refractor (30) to cover the refractor (30).

2. The Abbe refractometer according to claim 1, characterized in that: The protection box body (20) is provided with an inner cavity (21), and a light source (211) is provided in the inner cavity (21).

3. The Abbe refractometer according to claim 1, characterized in that: The protection box further comprises a connecting plate (40), a first end of the connecting plate (40) being hinged to the fixing seat (10), and a second end of the connecting plate (40) being fixed to the protection box body (20).

4. The Abbe refractometer according to claim 3, characterized in that: A steering shaft (11) is provided on the fixing seat (10), and the first end of the connecting plate (40) is rotatably connected to the steering shaft (11).

5. The Abbe refractometer according to claim 4, characterized in that: A driving shaft (12) is rotatably arranged on the fixing seat (10), and a transmission assembly (13) is arranged between the driving shaft (12) and the steering shaft (11); when the driving shaft (12) rotates, the steering shaft (11) is driven to rotate through the transmission assembly (13), thereby driving the protection box body (20) to rotate.

6. The Abbe refractometer according to claim 5, characterized in that: The transmission assembly (13) comprises one of a gear transmission, a belt transmission and a chain transmission.

7. The Abbe refractometer according to claim 5, characterized in that: A limiting plate (14) is provided on the driving shaft (12), a limiting column (15) is provided on the fixing seat (10), and the driving shaft (12) is located between the limiting column (15) and the steering shaft (11); when the driving shaft (12) rotates, the limiting column (15) and / or the steering shaft (11) can abut against the limiting plate (14) to limit the driving shaft (12).

8. The Abbe refractometer according to claim 4, characterized in that: The fixing seat also includes a fixing plate (16) and a lifting shaft (17), and the fixing plate (16) is respectively penetrated by the lifting shaft (17), the driving shaft (12) and the steering shaft (11); one end of the lifting shaft (17) located inside the fixing seat (10) is connected to the Abbe refractometer through an elastic device (18); when the fixing plate (16) is raised by using the lifting shaft (17), the protection box body (20) and the driving shaft (12) can be raised at the same time through the connecting plate (40), and the protection box body (20) can be rotated around the steering shaft (11) by operating the driving shaft (12).

9. The Abbe refractometer according to claim 2, characterized in that: It also includes a power supply (60), which is connected to the light source (211); the power supply (60) may be a built-in power supply or an external power supply.

10. The Abbe refractometer according to claim 9, characterized in that: The built-in power source is arranged in the inner cavity (21).

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