Knob type adjustable liquid pool of infrared spectrometer

Abstract

The utility model relates to a knob type adjustable liquid pool of an infrared spectrometer. The knob type adjustable liquid pool comprises a shell, a rotating body, a first lens and a second lens, the first lens and the second lens are arranged in an accommodating cavity of the shell from top to bottom, and the accommodating cavity is through up and down; the bottom wall of the first lens, the top wall of the second lens and the peripheral wall of the containing cavity define a liquid pool used for containing liquid. The shell is further provided with a flow channel for liquid inlet and outlet of the liquid pool. The rotating body is connected with the shell in a manner of rotating and lifting relative to the shell, and the rotating body is also connected with the first lens; when the rotating body rotates, the rotating body can drive the first lens to synchronously move up and down relative to the shell so as to adjust the height of the liquid pool. The knob type adjustable liquid pool of the infrared spectrometer has the beneficial effects that the knob type adjustable liquid pool of the infrared spectrometer, which is quick, safe and relatively high in detection precision, is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of infrared spectrometers, in particular to a knob-type adjustable liquid pool of an infrared spectrometer. Background Art

[0002] The infrared spectrometer includes two lenses spaced apart from each other and an adjustment pad mounted between the two lenses, and a tank for containing the liquid to be tested is arranged on the adjustment pad. However, the infrared spectrometer with the above arrangement has the following defects:

[0003] The adjustment gasket needs to be repeatedly loaded and unloaded and cleaned: the blank solution for cleaning (a solution that is measured under the same conditions as the sample in various analytical methods to eliminate interference) or the liquid to be tested needs to be injected into the tank body after the adjustment gasket is removed, and then clamped between the two lenses. When the optical path of the incident infrared light needs to be changed, the adjustment gaskets with different thicknesses need to be loaded and unloaded, and the height of the liquid to be tested in the tank body needs to be adjusted accordingly. The thickness of each adjustment gasket is 0.1mm or there are 10 adjustment gaskets with a gradient increase from 0.1mm to 1mm. At the same time, the dust and impurities on the surface of the adjustment gasket need to be cleaned every time it is used to avoid interference.

[0004] Dangerous: When testing volatile toxic liquids, the liquid to be tested may be easily absorbed by the operator when it is injected into the adjustment gasket.

[0005] The test liquid is easy to lose: If the test liquid is low-viscosity or volatile, the test liquid is easy to lose and reduce the height when the adjustment gasket is clamped between the two lenses, thereby affecting the optical path of the infrared light and the detection accuracy of the test liquid.

[0006] The adjustment gasket is easily damaged: the two lenses are fixed by bolts. The adjustment gasket is easily deformed and damaged during the process of repeated clamping of the two lenses, which affects the sealing between the lenses. It will also affect the height of the liquid to be tested due to thinning, thereby affecting the optical path of the infrared light and the detection accuracy of the liquid to be tested. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a knob-type adjustable liquid pool for an infrared spectrometer, which solves the technical problems that the existing infrared spectrometer needs to be repeatedly loaded and unloaded and the adjustment gasket is cleaned, which is dangerous, the detection liquid is easy to lose, and the adjustment gasket is easy to be damaged.

[0009] (II) Technical solution

[0010] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0011] The embodiment of the utility model provides a knob-type adjustable liquid pool of an infrared spectrometer, comprising a housing, a rotating body, a first lens and a second lens;

[0012] The first lens and the second lens are arranged in the accommodating cavity of the housing from top to bottom, and the accommodating cavity is connected from top to bottom; the bottom wall of the first lens, the top wall of the second lens and the peripheral wall of the accommodating cavity form a liquid pool for accommodating liquid;

[0013] The shell is also provided with a flow channel for liquid to flow in and out of the liquid pool;

[0014] The rotating body is connected to the housing so as to be able to rotate and rise and fall relative to the housing, and the rotating body is also connected to the first lens;

[0015] When the rotating body rotates, the rotating body can drive the first lens to move up and down synchronously relative to the shell to adjust the height of the liquid pool.

[0016] According to the utility model, the rotating body and the accommodating chamber are coaxially arranged and a through hole coaxially connected to the accommodating chamber is provided.

[0017] According to the utility model, the housing comprises a lower plate, an upper plate and a lifting seat;

[0018] The upper plate is detachably fixed to the top of the lower plate, and the lifting seat is located in the cavity of the upper plate; the cavities of the upper plate, the lower plate and the lifting seat are coaxially connected to form the accommodating cavity;

[0019] A vertically extending thread is provided on the peripheral wall of the lifting seat, and the rotating body and the lifting seat are threadedly connected;

[0020] The second lens is located in the cavity of the upper plate and below the lifting seat, and the upper plate and the lower plate can clamp the lifting seat and the second lens at the same time so that the lifting seat presses against the second lens;

[0021] The first lens can be lifted and lowered relative to the lifting seat and is located in the cavity of the lifting seat; the bottom wall of the first lens, the top wall of the second lens and the inner peripheral wall of the lifting seat enclose the liquid pool.

[0022] According to the utility model, the upper plate and the lower plate can simultaneously clamp the lower ring platform of the lifting seat and the circumferential edge of the second lens, so that the lifting seat presses against the second lens; the upper outer periphery of the lifting seat is provided with threads;

[0023] The rotating body comprises a knob and a threaded sleeve, both of which are annular;

[0024] The threaded sleeve is detachably connected to the bottom of the knob, and the threaded sleeve and the knob can clamp the upper ring platform of the first lens; the inner peripheral wall of the threaded sleeve is provided with threads, and the threaded sleeve is sleeved and threadedly connected to the lifting seat, and when the threaded sleeve drives the rotating body to rotate as a whole, the rotating body can drive the first lens to move up and down synchronously relative to the shell.

[0025] According to the utility model, a sealing member is provided between the lifting seat and the first lens, and between the lifting seat and the second lens.

[0026] According to the utility model, the infrared spectrometer further includes a circular scale plate;

[0027] The scale plate is detachably fixed to the top of the housing, the scale plate and the accommodating cavity are coaxially arranged, and the scale plate is provided with scale lines for indicating the height of the liquid pool; the rotating body is inserted into the cavity of the scale plate so as to rotate relative to the scale plate;

[0028] When the rotating body rotates and drives the first lens to move up and down synchronously relative to the housing, the indicator mark line arranged on the rotating body can indicate the scale line corresponding to the height of the liquid pool.

[0029] According to the utility model, a groove is provided on the inner peripheral wall of the scale plate;

[0030] The infrared spectrometer further comprises a locking assembly; the locking assembly comprises a locking ball and an elastic member both located in the groove; two ends of the elastic member are respectively fixedly connected to the groove wall and the locking ball;

[0031] An arc-shaped groove is arranged on the outer periphery of the rotating body; when the rotating body rotates until the height of the liquid pool is adjusted to a set height, the arc-shaped groove can be clamped into the locking ball.

[0032] According to the utility model, the arc-shaped grooves are arranged in a plurality, and the plurality of arc-shaped grooves are arranged in annular intervals on the outer peripheral wall of the rotating body, and the circumferential spacing between two adjacent arc-shaped grooves is consistent with the minimum scale of the scale line.

[0033] According to the utility model, the minimum scale of the scale line is 0.01 mm, and the adjustable range of the liquid pool is 0.01-1 mm.

[0034] According to the utility model, one end of the flow channel is connected to the liquid port of the outer peripheral wall of the shell, and the other end is connected to the liquid pool.

[0035] (III) Beneficial effects

[0036] The beneficial effects of the utility model are as follows: the knob-type adjustable liquid pool of the infrared spectrometer of the utility model can drive the first lens to move synchronously up and down relative to the shell through the rotation of the rotating body when in use, so as to adjust the height between the two lenses and adjust the height of the liquid pool. The optical path adjustment method is simple and convenient. At the same time, the liquid pool for containing liquid is a cavity and will not be damaged or deformed. Furthermore, the liquid pool is a closed cavity surrounded by the bottom wall of the first lens, the top wall of the second lens and the peripheral wall of the containing cavity. When in use, the liquid is injected or recovered into the liquid pool through the flow channel opened on the shell for the liquid to enter and exit the liquid pool. The operator will not directly contact the liquid, and the liquid to be tested therein will not evaporate or lose. It is suitable for low-viscosity, volatile, and toxic liquid samples, ensuring the safety of use, and can ensure the accuracy of the height of the liquid to be tested, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a stereoscopic diagram of a knob-type adjustable liquid pool of the infrared spectrometer of the utility model;

[0038] Figure 2 for Figure 1 A cross-sectional view of

[0039] Figure 3 for Figure 2 A partial schematic diagram of

[0040] Figure 4 for Figure 1 A cross-sectional view from another perspective;

[0041] Figure 5 It is a three-dimensional schematic diagram of a rotating body.

[0042] [Description of Reference Numerals]

[0043] 1: First lens;

[0044] 2: Second lens;

[0045] 3: Shell; 31: Liquid inlet channel; 32: Liquid outlet channel; 33: First thread; 34: Lower plate; 35: Upper plate; 36: Lifting seat; 37: Liquid port;

[0046] 4: rotating body; 41: second thread; 42: knob; 43: threaded sleeve; 44: arc groove; 441: 0.1mm scale groove; 442: 0.01mm scale groove; 45: indicator mark;

[0047] 5: Seals;

[0048] 6: dial; 61: groove; 62: scale line;

[0049] 71: locking ball; 72: elastic member;

[0050] A: Holding chamber; B: Liquid pool. DETAILED DESCRIPTION

[0051] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific implementation methods. Figure 2 The orientation is used as a reference.

[0052] See also Figure 1-5 The knob-type adjustable liquid pool of the infrared spectrometer proposed in the embodiment of the utility model includes a shell 3, a rotating body 4, a first lens 1 and a second lens 2.

[0053] The first lens 1 and the second lens 2 are arranged from top to bottom in the accommodating chamber A of the shell 3, and the accommodating chamber A is connected from top to bottom. The bottom wall of the first lens 1, the top wall of the second lens 2 and the peripheral wall of the accommodating chamber A enclose a liquid pool B for accommodating liquid. The shell 3 is also provided with a flow channel for liquid in and out of the liquid pool B. The rotating body 4 is connected to the shell 3 so as to be able to rotate and rise and fall relative to the shell 3, and the rotating body 4 is also connected to the first lens 1. When the rotating body 4 rotates, the rotating body 4 can drive the first lens 1 to rise and fall synchronously relative to the shell 3 to adjust the height of the liquid pool B.

[0054] When in use, the first lens 1 can be driven to move up and down synchronously relative to the shell 3 through the rotation of the rotating body 4 to adjust the height between the two lenses and the height of the liquid pool B. This optical path adjustment method is simple and convenient. At the same time, the liquid pool B used to contain the liquid is a cavity and will not be damaged or deformed. Furthermore, the liquid pool B is a closed cavity surrounded by the bottom wall of the first lens 1, the top wall of the second lens 2, and the surrounding wall of the accommodating chamber A. When in use, the liquid is injected or recovered into the liquid pool through the flow channel opened on the shell 3 for the liquid to enter and exit the liquid pool B. The operator will not directly contact the liquid, and the liquid to be tested therein will not evaporate or lose. It is suitable for low-viscosity, volatile, and toxic liquid samples, ensuring safety of use, and can ensure the accuracy of the height of the liquid to be tested, thereby improving the detection accuracy.

[0055] Specifically, the specific method of using the knob-type adjustable liquid pool of the infrared spectrometer is as follows:

[0056] S1: The rotating body 4 drives the first lens 1 to rise and fall relative to the housing 3 to adjust the height of the liquid pool B to a set height.

[0057] S2: transporting blank liquid into the liquid pool B through the flow channel, and recovering the blank liquid after cleaning the liquid pool B through the flow channel.

[0058] S3: The liquid to be tested is transported into the liquid pool B through the flow channel.

[0059] S4: Infrared light is emitted to the first lens 1, and the infrared light sequentially passes through the liquid to be tested in the liquid pool B and the second lens 2. The infrared light passing through the second lens 2 obtains the spectrum of the molecular structure and chemical composition of the liquid to be tested.

[0060] S5: Recover the tested liquid through the flow channel.

[0061] It can be seen from the above that the operation method of the knob-type adjustable liquid pool of the infrared spectrometer is simple and convenient, and the detection efficiency is high.

[0062] Furthermore, one end of the flow channel is connected to the liquid port 37 on the outer peripheral wall of the housing 3, and the other end is connected to the liquid pool B. When in use, the liquid is transported to and recovered from the liquid pool B through the liquid port 37 through the flow channel.

[0063] Specifically, the flow channel includes a liquid inlet channel 31 and a liquid outlet channel 32. Both ends of the liquid inlet channel 31 and the liquid outlet channel 32 are connected to the liquid pool B and the liquid inlet and outlet device for feeding liquid into the liquid pool B, respectively.

[0064] Specifically, in step S2 , the liquid inlet and outlet device delivers blank liquid into the liquid pool B through the liquid inlet channel 31 , and recovers the blank liquid after cleaning the liquid pool B through the liquid outlet channel 32 .

[0065] In step S3 : the liquid inlet and outlet device transports the liquid to be tested into the liquid pool B through the liquid inlet channel 31 .

[0066] In step S5 : the liquid inlet and outlet device recovers the tested liquid through the liquid outlet channel 32 .

[0067] Furthermore, the liquid inlet and outlet device includes a liquid inlet container, a liquid outlet container, a liquid inlet pipe 83, a liquid outlet pipe 84 and a peristaltic pump.

[0068] The liquid inlet container is used to contain untested liquid to be tested or blank liquid, and the liquid outlet container is used to contain the tested liquid to be tested or the blank liquid after the liquid pool B is cleaned.

[0069] The two ends of the liquid inlet pipe 83 are connected to the liquid inlet channel 31 and the liquid inlet container respectively, and the two ends of the liquid outlet pipe 84 are connected to the liquid outlet channel 32 and the liquid outlet container respectively. Peristaltic pumps are provided on the liquid inlet pipe 83 and the liquid outlet pipe 84.

[0070] When in use, the peristaltic pump on the liquid inlet tube 83 controls the liquid inlet container to transport the test liquid or blank liquid into the liquid pool B through the liquid inlet tube 83, and the peristaltic pump on the liquid outlet tube 84 controls the liquid outlet tube 84 to recover the test liquid or blank liquid from the liquid pool B to the liquid outlet container.

[0071] Therefore, the liquid inlet and outlet device can automatically transport and recover the liquid to be tested and the blank liquid to the liquid pool B, thereby reducing the difficulty of operation and improving the detection efficiency.

[0072] Specifically, the number of liquid inlet containers and liquid outlet containers is at least two, and different liquid inlet containers contain the liquid to be tested and the blank liquid respectively, and different liquid outlet containers contain the liquid to be tested and the blank liquid respectively, to avoid mixing interference.

[0073] Furthermore, the rotating body 4 and the accommodating chamber A are coaxially arranged and a through hole coaxially connected to the accommodating chamber A is opened, so that infrared light is emitted from the through hole of the rotating body 4 to the first lens.

[0074] Furthermore, the housing 3 includes a lower plate 34 , an upper plate 35 and a lifting seat 36 .

[0075] The upper plate 35 is detachably fixed to the top of the lower plate 34, and the lifting seat 36 is located in the cavity of the upper plate 35. The cavities of the upper plate 35, the lower plate 34 and the lifting seat 36 are coaxially connected to form an accommodating cavity A.

[0076] A vertically extending thread is provided on the peripheral wall of the lifting seat 36 , and the rotating body 4 and the lifting seat 36 are threadedly connected.

[0077] The second lens 2 is located in the cavity of the upper plate 35 and below the lifting seat 36 . The upper plate 35 and the lower plate 34 can clamp the lifting seat 36 and the second lens 2 at the same time so that the lifting seat 36 presses against the second lens 2 .

[0078] The first lens 1 is located in the cavity of the lifting seat 36 so as to be able to be lifted relative to the lifting seat 36. The bottom wall of the first lens 1, the top wall of the second lens 2 and the inner peripheral wall of the lifting seat 36 form a liquid pool B.

[0079] Specifically, the upper plate 35 and the lower plate 34 can simultaneously clamp the lower ring of the lifting seat 36 and the circumferential edge of the second lens 2 to fix the lifting seat 36 and the second lens 2, and make the lifting seat 36 press against the second lens 2. The upper periphery of the lifting seat 36 is threaded.

[0080] Specifically, the rotating body 4 includes a knob 42 and a threaded sleeve 43 both of which are annular.

[0081] The threaded sleeve 43 is detachably connected to the bottom of the knob 42, and the threaded sleeve 43 and the knob 42 can clamp the upper ring of the first lens 1 to achieve the connection between the rotating body 4 and the first lens 1. The inner wall of the threaded sleeve 43 is threaded, and the threaded sleeve 43 is sleeved and threadedly connected to the lifting seat 36.

[0082] When the threaded sleeve 43 drives the rotating body 4 to rotate as a whole, the rotating body 4 can drive the first lens 1 to move up and down relative to the housing 3 synchronously to change the height distance between the first lens and the second lens 2, thereby changing the height of the liquid pool B.

[0083] Specifically, a first thread 33 is formed on the outer peripheral wall of the lifting seat 36 , and a second thread 41 matching with the first thread 33 is formed on the inner peripheral wall of the threaded sleeve 43 .

[0084] More specifically, the threaded sleeve 43 is detachably connected via a bolt and a knob 42 .

[0085] Specifically, seals 5 are provided between the lifting seat 36 and the first lens 1 and between the lifting seat 36 and the second lens 2 to ensure the sealing of the liquid pool B and prevent the first lens 1 from affecting the sealing between the two when rotating and lifting relative to the lifting seat 36 .

[0086] Preferably, a plurality of sealing members 5 are provided to improve the sealing performance of the liquid pool B.

[0087] Specifically, the sealing member 5 is a sealing ring.

[0088] Furthermore, the infrared spectrometer also includes a ring-shaped scale plate 6 .

[0089] The scale plate 6 is detachably fixed to the top of the housing 3 , the scale plate 6 and the accommodating cavity A are coaxially arranged, and a scale line 62 is arranged on the scale plate 6 for indicating the height of the liquid pool B. The rotating body 4 is inserted into the cavity of the scale plate 6 so as to rotate relative to the scale plate 6 .

[0090] When the rotating body 4 rotates and drives the first lens 1 to move up and down relative to the housing 3 synchronously, the indicator mark 45 provided on the rotating body 4 can indicate the scale line 62 corresponding to the height of the liquid pool B, so that the height of the liquid pool B can be checked intuitively.

[0091] It should be noted that when the rotating body 4 is lifted or lowered by one pitch relative to the lifting seat 36, the rotating body 4 rotates one circle relative to the lifting seat 36. The corresponding relationship between the circumferential rotation angle of the rotating body 4 and the lifting distance can be calculated through the above corresponding relationship, and the height of the liquid pool B corresponding to the circumferential rotation angle of the rotating body 4 is calculated accordingly, and a scale line 62 indicating the height of the liquid pool B is set. When the rotating body 4 rotates, the indicator mark 45 on the rotating body 4 can rotate synchronously and indicate the scale line 62 corresponding to the height of the liquid pool B.

[0092] Specifically, the scale line 62 is arranged in a ring shape on the top of the dial 6. When the rotating body 4 rotates, the scale line 62 indicated by the rotating body 4 corresponds to the height of the liquid pool B.

[0093] Specifically, the dial 6 is detachably connected to the top of the housing 3 by bolts.

[0094] Preferably, the minimum scale of the scale line 62 is 0.01 mm, and the adjustable range of the liquid pool B is 0.01-1 mm, so as to improve the adjustment accuracy of the height of the liquid pool B.

[0095] Furthermore, the inner wall of the scale plate 6 is provided with a groove 61. The infrared spectrometer further comprises a locking assembly. The locking assembly comprises a locking ball 71 and an elastic member 72 both located in the groove 61. The two ends of the elastic member 72 are respectively fixedly connected to the groove wall of the groove 61 and the locking ball 71.

[0096] The outer periphery of the rotating body 4 is provided with an arc groove 44. When the rotating body 4 rotates to adjust the height of the liquid pool B to a set height, the arc groove 44 can be engaged with the locking ball 71 to lock the position of the rotating body 4, thereby improving the adjustment accuracy of the height of the liquid pool B.

[0097] It should be noted that when the rotating body 4 in the locked state needs to be rotated, a driving force is applied to the rotating body 4 to rotate around its axis, and the peripheral wall of the rotating body 4 can push the locking ball 71 to insert into the groove 61, and the rotating body 4 can rotate. At this time, the elastic member 72 contracts. When the rotating body 4 rotates to an arc groove 44 corresponding to the locking ball 71, the elastic member 72 can drive the locking ball 71 to return and insert into the corresponding arc groove 4 to lock the rotating body 4.

[0098] Specifically, the elastic member 72 is a spring.

[0099] Specifically, the arc groove 44 includes a plurality of 0.1 mm scale grooves 441 and a plurality of 0.01 mm scale grooves 442. The plurality of 0.1 mm scale grooves 441 and the plurality of 0.01 mm scale grooves 442 are arranged in annular intervals on the outer peripheral wall of the knob 42 of the rotating body 4, and 9 0.01 mm scale grooves 442 are arranged between two adjacent 0.1 mm scale grooves 441. The depth of the 0.1 mm scale groove 441 is greater than the depth of the 0.01 mm scale groove 442.

[0100] Since the depth of the 0.1 mm scale groove 441 is greater than the depth of the 0.01 mm scale groove 442, the resistance of the locking ball 71 to escape from the 0.1 mm scale groove 441 is relatively large. Therefore, when using:

[0101] When the rotational force applied to the rotating body 4 is small: every time the rotating body 4 rotates a 0.01mm scale line 62, the locking ball 71 can be inserted into a 0.01mm scale groove 442 to lock the rotating body 4, thereby making the single adjustment range of the height of the liquid pool B 0.01mm, thereby improving the adjustment accuracy of the height of the liquid pool B.

[0102] When the rotational force applied to the rotating body 4 is large: every time the rotating body 4 rotates a 0.1mm scale line 62, the locking ball 71 can also be stuck in a 0.1mm scale groove 441 to lock the rotating body 4, so that the single adjustment range of the height of the liquid pool B is 0.1mm to meet different adjustment requirements.

[0103] Of course, the magnitude of the rotational force can be adjusted at any time during the process of rotating the rotating body 4, so as to correspondingly adjust the scale of the scale line 62 corresponding to each rotation.

[0104] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0105] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0106] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0107] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0108] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A knob-type adjustable liquid pool for an infrared spectrometer, characterized in that: It comprises a housing (3), a rotating body (4), a first lens (1) and a second lens (2); The first lens (1) and the second lens (2) are arranged from top to bottom in a receiving cavity (A) of the housing (3), and the receiving cavity (A) is connected from top to bottom; the bottom wall of the first lens (1), the top wall of the second lens (2) and the peripheral wall of the receiving cavity (A) form a liquid pool (B) for receiving liquid; The housing (3) is also provided with a flow channel for liquid to flow in and out of the liquid pool (B); The rotating body (4) is connected to the housing (3) so as to be capable of rotating and lifting relative to the housing (3), and the rotating body (4) is also connected to the first lens (1); When the rotating body (4) rotates, the rotating body (4) can drive the first lens (1) to move up and down synchronously relative to the housing (3) to adjust the height of the liquid pool (B).

2. The knob-type adjustable liquid pool of the infrared spectrometer according to claim 1, characterized in that: The rotating body (4) and the accommodating chamber (A) are coaxially arranged and have a through hole coaxially connected to the accommodating chamber (A).

3. The knob-type adjustable liquid pool of the infrared spectrometer as claimed in claim 2, characterized in that: The housing (3) comprises a lower plate (34), an upper plate (35) and a lifting seat (36); The upper plate (35) is detachably fixed to the top of the lower plate (34), and the lifting seat (36) is located in the cavity of the upper plate (35); the cavities of the upper plate (35), the lower plate (34) and the lifting seat (36) are coaxially connected to form the accommodating cavity (A); A vertically extending thread is provided on the peripheral wall of the lifting seat (36), and the rotating body (4) and the lifting seat (36) are threadedly connected; The second lens (2) is located in the cavity of the upper plate (35) and below the lifting seat (36); the upper plate (35) and the lower plate (34) are capable of simultaneously clamping the lifting seat (36) and the second lens (2) so that the lifting seat (36) presses against the second lens (2); The first lens (1) can be raised and lowered relative to the lifting seat (36) and is located in the cavity of the lifting seat (36); the bottom wall of the first lens (1), the top wall of the second lens (2) and the inner peripheral wall of the lifting seat (36) form the liquid pool (B).

4. The knob-type adjustable liquid pool of the infrared spectrometer as claimed in claim 3, characterized in that: The upper plate (35) and the lower plate (34) can simultaneously clamp the lower ring platform of the lifting seat (36) and the circumferential edge of the second lens (2), so that the lifting seat (36) presses against the second lens (2); the upper outer periphery of the lifting seat (36) is provided with a thread; The rotating body (4) comprises a knob (42) and a threaded sleeve (43) both of which are annular; The threaded sleeve (43) is detachably connected to the bottom of the knob (42), and the threaded sleeve (43) and the knob (42) are capable of clamping the upper ring platform of the first lens (1); the inner peripheral wall of the threaded sleeve (43) is provided with a thread, and the threaded sleeve (43) is sleeved and threadedly connected to the lifting seat (36); when the threaded sleeve (43) drives the rotating body (4) to rotate as a whole, the rotating body (4) can drive the first lens (1) to move synchronously up and down relative to the housing (3).

5. The knob-type adjustable liquid pool of the infrared spectrometer as claimed in claim 3, characterized in that: A sealing member (5) is provided between the lifting seat (36) and the first lens (1), and between the lifting seat (36) and the second lens (2).

6. The knob-type adjustable liquid pool of the infrared spectrometer as claimed in claim 2, characterized in that: The infrared spectrometer also includes a ring-shaped scale plate (6); The scale plate (6) is detachably fixed to the top of the housing (3); the scale plate (6) and the accommodating cavity (A) are coaxially arranged; a scale line (62) for indicating the height of the liquid pool (B) is arranged on the scale plate (6); the rotating body (4) is inserted into the cavity of the scale plate (6) so as to rotate relative to the scale plate (6); When the rotating body (4) rotates and drives the first lens (1) to move up and down synchronously relative to the housing (3), the indicator mark (45) provided on the rotating body (4) can indicate the scale line (62) corresponding to the height of the liquid pool (B).

7. The knob-type adjustable liquid pool of the infrared spectrometer according to claim 6, characterized in that: The inner peripheral wall of the scale plate (6) is provided with a groove (61); The infrared spectrometer further comprises a locking assembly; the locking assembly comprises a locking ball (71) and an elastic member (72) both located in the groove (61); two ends of the elastic member (72) are respectively fixedly connected to the groove wall of the groove (61) and the locking ball (71); An arc-shaped groove (44) is provided on the outer periphery of the rotating body (4); when the rotating body (4) rotates until the height of the liquid pool (B) is adjusted to a set height, the arc-shaped groove (44) can be locked into the locking ball (71).

8. The knob-type adjustable liquid pool of the infrared spectrometer according to claim 7, characterized in that: The arc-shaped grooves (44) are arranged in a plurality, and the plurality of arc-shaped grooves (44) are arranged on the outer peripheral wall of the rotating body (4) in an annular manner, and the circumferential spacing between two adjacent arc-shaped grooves (44) is consistent with the minimum scale of the scale line (62).

9. The knob-type adjustable liquid pool of the infrared spectrometer according to claim 6, characterized in that: The minimum scale of the scale line (62) is 0.01 mm, and the adjustable range of the liquid pool (B) is 0.01-1 mm.

10. The knob-type adjustable liquid cell of the infrared spectrometer according to claim 1, characterized in that: One end of the flow channel is connected to the liquid port (37) on the outer peripheral wall of the shell (3), and the other end is connected to the liquid pool (B).

Images