Infrared spectrometer sample clamp

Abstract

The infrared spectrometer sample clamp comprises a back plate, a rotating disc, a mounting plate, a rotating ring and a moving plate, a light-transmitting window is formed in the back plate, a thin circular plate is rotatably mounted on the back plate, a circle of light-transmitting holes are formed in the thin circular plate around the center point, the diameter sizes of the five groups of light-transmitting holes are sequentially reduced, and the diameter sizes of the five groups of light-transmitting holes are gradually reduced. A gear ring A is installed on the outer ring of the thin circular plate, a connecting plate is installed on the back plate, a rotating disc is rotatably installed on the connecting plate, a rotating handle is installed on the rotating disc, a gear ring B is installed on the outer ring of the rotating disc, and the gear ring B is meshed with the gear ring A. According to the utility model, the thin circular plate is rotated by rotating the turntable to adjust the light holes with different sizes to correspond to samples, so that the light holes can be replaced according to the samples with different sizes, the problem that a test spectrogram result is influenced by a light leakage condition is avoided, the light holes are adjusted more conveniently and quickly, and the test efficiency of the infrared spectrometer is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to infrared spectrometer clamp relevant field, concretely is a kind of infrared spectrometer sample clamp. BACKGROUND

[0002] Infrared spectrometer is the absorption characteristic of different wavelength infrared radiation of substance, carries out molecular structure and chemical composition analysis instrument, with scanning speed fast, light flux is big, resolution is high, the characteristics of easy to use, widely used in organic chemistry, polymer chemistry, inorganic chemistry, chemical industry, catalysis, petroleum, material, biology, medicine, environment etc., in the process of carrying out infrared spectrum experiment, need to use sample clamp to clamp and fix sample.

[0003] Through the search, China utility model patent CN209727742U discloses a kind of infrared spectrometer sample clamp, including backplate and cover plate, the backplate is equipped with sample placement hole, the sample clamp further includes sheet, the sheet is located between backplate and cover plate, the sheet is equipped with the through hole opposite the sample placement hole position on the backplate, the size of the through hole is less than the size of sample placement hole on the backplate and the size of sample.The infrared spectrometer sample clamp described in the utility model can meet the detection needs of small sample, and sample is fixed firmly, reduces the phenomenon that sample moves, improves detection accuracy and work efficiency.

[0004] The technical scheme in the application file still has the following problems: when clamping and fixing different sizes of samples, in order to avoid the problem that the sample with smaller diameter cannot be fixed or light leakage occurs, resulting in inaccurate measurement or test spectrum results, it is necessary to replace the sheet with different diameter of light transmission hole, it is troublesome to find 2 sheets with the same diameter of light transmission hole in a plurality of sheets each time, and the sheet with different diameter of light transmission hole is easy to lose and difficult to organize, which affects the test efficiency of infrared spectrometer, and with the long-term use of spring piece, the spring piece is prone to insufficient spring force, so that it is difficult to achieve good sample piece fixing effect. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of infrared spectrometer sample clamp to solve the problems raised in the above background.

[0006] In order to realize the above object, the utility model provides the following technical scheme: an infrared spectrometer sample clamp, including backplate, carousel, mounting plate, rotating ring and moving plate, the backplate is equipped with light transmission window, the backplate is equipped with thin round plate, the thin round plate is equipped with a circle of light transmission hole around the center point, the diameter size of five groups light transmission hole reduces gradually, the outer ring of thin round plate is equipped with gear ring A, the backplate is equipped with connecting plate, the connecting plate is equipped with carousel, the carousel is equipped with handle, the outer ring of carousel is equipped with gear ring B, gear ring B is engaged with gear ring A.

[0007] Adopt the above technical scheme, by holding the handle installed on the carousel, make carousel rotate, cooperate with the gear ring B installed on the outer ring of carousel and the gear ring A installed on the outer ring of thin round plate, when carousel rotates, drive thin round plate to rotate, according to the size of sample, make the appropriate light transmission hole on thin round plate rotate above the light transmission window on backplate, make light transmission hole and light transmission window vertical direction alignment, then put sample on light transmission hole, the size of light transmission hole is slightly less than the size of sample, then fix sample through two groups of fixed plate, make thin round plate rotate by rotating carousel, adjust the light transmission hole of different size and sample, can replace light transmission hole for different size sample, avoid the problem that light leakage affects test spectrum result, make the adjustment of light transmission hole more convenient and fast, improve the efficiency of infrared spectrometer test.

[0008] Preferably, the backplate is provided with a support, the top end of the support is provided with a mounting plate, the mounting plate is provided with a moving plate, the threaded hole in the moving plate is provided with a threaded rod, the bottom end of the threaded rod is provided with a fixed plate, and the bottom surface of the fixed plate is provided with a rubber pressing block.

[0009] Adopt the above technical scheme, by rotating the threaded rod threaded in the threaded hole of moving plate, adjust the downward movement of threaded rod, drive the downward movement of fixed plate at the bottom end, make the downward movement of rubber pressing block on the bottom surface of fixed plate and sample, so as to fix the sample, avoid the problem that the spring sheet is difficult to fix the sample well due to the lack of elasticity after long time use, prevent the sample from moving and affecting the test result, and avoid damaging the sample.

[0010] Preferably, the mounting plate is provided with a bidirectional screw rod, the ball nut is respectively screwed on the screw threads in two different directions of the bidirectional screw rod, the ball nut is connected with the moving plate, and one end of the bidirectional screw rod is connected with the rotating ring rotatably installed on the mounting plate.

[0011] The technical scheme is adopted, the rotating ring on the installation plate is rotated forward and reversely, the bidirectional screw rod is rotated forward and reversely, the ball nuts respectively screwed on the two sections of threads in different directions on the bidirectional screw rod are relatively moved, the ball nuts are connected with the moving plates, thereby relatively moving the two groups of moving plates, the distance between the fixed plates is adjusted according to the size of the sample, the sample of different sizes is fixed, and the practicability of the clamp is improved.

[0012] Preferably, a circle of fixing holes is formed on the rotating disc, a fixing rod is inserted into the fixing hole, and a butt joint hole is formed on the connecting plate.

[0013] The technical scheme is adopted, the rotating disc is rotated to a proper position, one fixing hole formed on the rotating disc is aligned with the butt joint hole formed on the connecting plate in the vertical direction, and then the fixing rod is inserted into the fixing hole and the butt joint hole to limit and fix the rotating disc.

[0014] Preferably, a limiting hole is formed on the rotating ring, a limiting rod is inserted into the limiting hole, and a butt joint insertion hole is formed on the installation plate.

[0015] The technical scheme is adopted, the limiting hole formed on the rotating ring is aligned with the butt joint insertion hole formed on the installation plate in the vertical direction, and then the limiting rod is inserted into the limiting hole and the butt joint insertion hole to limit and fix the rotating ring.

[0016] Preferably, the bottom surface of the thin circular plate is attached to the top surface of the back plate.

[0017] The technical scheme is adopted, the bottom surface of the thin circular plate is attached to the top surface of the back plate, and light leakage is avoided.

[0018] Preferably, the sliding block mounted on the ball nut is slidably connected with the sliding groove formed on the inner wall of the installation plate.

[0019] The technical scheme is adopted, the sliding block mounted on the ball nut is slidably connected with the sliding groove formed on the inner wall of the installation plate, the self-rotation of the ball nut is limited, and the stability of the ball nut during movement is ensured.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] 1. The thin circular plate is rotated by rotating the rotating disc to adjust the light transmission hole of different sizes to correspond to the sample, the light transmission hole can be replaced according to the sample of different sizes, light leakage is avoided, the test spectrum result is not affected, the adjustment of the light transmission hole is more convenient and fast, and the efficiency of the infrared spectrometer test is improved.

[0022] 2、 by rotating the threaded rod installed in the screw hole of the moving plate, the threaded rod is lowered, the fixed plate at the bottom end is lowered, the rubber pressing block installed on the bottom surface of the fixed plate is lowered and abuts against the sample, so that the sample is fixed, the problem of insufficient elasticity of the spring sheet after long-term use is avoided, the sample is difficult to be fixed well, the movement of the sample affects the test result, and the sample is damaged.

[0023] 3、 by rotating the rotating ring on the mounting plate, the bidirectional screw rod is rotated in opposite directions, the ball nuts respectively threaded on the two sections of threads in opposite directions on the bidirectional screw rod are relatively moved, the ball nuts are connected with the moving plates, so that the two groups of moving plates are relatively moved, the distance between the fixed plates is adjusted according to the size of the sample, and the sample of different sizes is fixed, so that the practicability of the clamp is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective structural schematic view of the utility model;

[0025] Figure 2 It is a perspective structural schematic view of the utility model;

[0026] Figure 3 It is a sectional structural schematic view of the utility model;

[0027] Figure 4 It is an enlarged schematic view of the rotating ring limiting structure of the utility model.

[0028] Figure 5 It is an enlarged schematic view of the rotating disc limiting structure of the utility model.

[0029] In the drawing: 1, back plate; 2, thin round plate; 3, gear ring A; 4, connecting plate; 5, rotating disc; 6, gear ring B; 7, light transmission window; 8, light transmission hole; 9, fixing hole; 10, fixed rod; 11, rotating handle; 12, mounting plate; 13, rotating ring; 14, limiting hole; 15, limiting rod; 16, bidirectional screw rod; 17, ball nut; 18, moving plate; 19, threaded rod; 20, fixed plate; 21, rubber pressing block; 22, support. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0031] Please refer to Figures 1-5The utility model provides an embodiment: an infrared spectrometer sample clamp, including backplate 1, carousel 5, mounting plate 12, swivel ring 13 and moving plate 18, the backplate 1 is opened with light transmission window 7, the backplate 1 is rotationally installed with thin round plate 2, a circle light transmission hole 8 is opened around the centre point on thin round plate 2, the diameter size of five groups light transmission hole 8 is reduced gradually, the outer ring of thin round plate 2 is installed with gear ring A3, the backplate 1 is installed with connecting plate 4, carousel 5 is rotationally installed on connecting plate 4, carousel 5 is installed with handle 11, the outer ring of carousel 5 is installed with gear ring B6, gear ring B6 is engaged with gear ring A3. By holding carousel 5 installed handle 11, makes carousel 5 rotate, cooperates the gear ring B6 of carousel 5 outer ring installation with the gear ring A3 of thin round plate 2 outer ring installation, carousel 5 drives thin round plate 2 to rotate when rotating, according to the size of sample the appropriate light transmission hole 8 on thin round plate 2 is rotated to the light transmission window 7 above the backplate 1 is opened, makes light transmission hole 8 with light transmission window 7 vertical direction alignment, then the sample is placed to light transmission hole 8, light transmission hole size is slightly less than sample size, then through two groups of fixed plate 20 to the sample is fixed, by rotating carousel makes thin round plate rotate and adjusts the light transmission hole of different size and sample corresponding, can replace light transmission hole for different size sample, avoids the problem that the light leakage condition happens influence test spectrum result, makes the adjustment of light transmission hole more convenient and fast, has improved the efficiency of infrared spectrometer test.

[0032] The backplate 1 is installed with support 22, the top end of support 22 is installed with mounting plate 12, mounting plate 12 is installed with moving plate 18, the screw hole in moving plate 18 is screw-threadedly installed with threaded rod 19, the bottom end of threaded rod 19 is rotationally installed with fixed plate 20, the bottom surface of fixed plate 20 is installed with rubber pressing block 21. By rotating the threaded rod 19 screw-threadedly installed in the screw hole of moving plate 18, adjusting threaded rod 19 to move down, drive the fixed plate 20 at the bottom end to move down, make the rubber pressing block 21 on the bottom surface of fixed plate 20 move down and abut against the sample, thereby fixing the sample, avoid the problem that the spring piece is difficult to fix the sample well due to the lack of elasticity after long time use, prevent the sample from moving and affecting the test result, and avoid damaging the sample.

[0033] The installation plate 12 is provided with a bidirectional screw rod 16, the ball nut 17 is threadedly connected on the two sections of threads of the bidirectional screw rod 16 in different directions respectively, the ball nut 17 is connected with the moving plate 18, and one end of the bidirectional screw rod 16 is connected with the rotating ring 13 rotatably arranged on the installation plate 12. By rotating the rotating ring 13 on the installation plate 12 in the forward and reverse directions, the bidirectional screw rod 16 is driven to rotate in the forward and reverse directions, the ball nut 17 threadedly connected on the two sections of threads of the bidirectional screw rod 16 in different directions is relatively moved, the ball nut 17 is connected with the moving plate 18, so that the two groups of moving plates 18 are relatively moved, the distance between the fixed plates 20 is adjusted according to the size of the sample, the sample of different sizes is fixed, and the practicability of the clamp is improved.

[0034] The rotating disc 5 is provided with a circle of fixing holes 9, the fixing rod 10 is inserted into the fixing holes 9, the connecting plate 4 is provided with butt joint holes, and the fixing holes 9 of the rotating disc 5 are vertically aligned with the butt joint holes of the connecting plate 4 after the rotating disc 5 is rotated to a proper position, then the fixing rod 10 is inserted into the fixing holes 9 and the butt joint holes, and the rotating disc 5 is fixed in position.

[0035] The rotating ring 13 is provided with a circle of limiting holes 14, the limiting rod 15 is inserted into the limiting holes 14, and the installation plate 12 is provided with butt joint insertion holes, and the limiting holes 14 of the rotating ring 13 are vertically aligned with the butt joint insertion holes of the installation plate 12, then the limiting rod 15 is inserted into the limiting holes 14 and the butt joint insertion holes, and the rotating ring 13 is fixed in position.

[0036] The bottom surface of the thin circular plate 2 is attached to the top surface of the back plate 1, and the thin circular plate 2 is attached to the top surface of the back plate 1, so that light leakage is avoided.

[0037] The sliding block mounted on the ball nut 17 is slidably connected with the sliding groove arranged on the inner wall of the installation plate 12, the self-rotation of the ball nut 17 is limited, and the stability of the ball nut 17 during movement is ensured.

[0038] Working principle: by holding the handle 11 installed on the turntable 5, make the turntable 5 rotate, cooperate with the gear ring B6 installed on the outer ring of the turntable 5 and the gear ring A3 installed on the outer ring of the thin circular plate 2, when the turntable 5 rotates, drive the thin circular plate 2 to rotate, according to the size of the sample, rotate the appropriate light transmission hole 8 on the thin circular plate 2 to the light transmission window 7 on the back plate 1, make the light transmission hole 8 and the light transmission window 7 vertically aligned, then put the sample on the light transmission hole 8, the size of the light transmission hole is slightly smaller than the size of the sample, through the forward and reverse rotation of the rotating ring 13 on the mounting plate 12, drive the bidirectional screw rod 16 to rotate forward and backward, make the ball nut 17 threaded on the two sections of different direction threads on the bidirectional screw rod 16 relatively move, the ball nut 17 is connected with the moving plate 18, thereby drive the two groups of moving plates 18 to relatively move, according to the size of the sample, adjust the distance between the fixed plates 20, then rotate the threaded rod 19 threaded in the screw hole of the moving plate 18, adjust the downward movement of the threaded rod 19, drive the fixed plate 20 at the bottom end to move downward, make the rubber pressing block 21 installed on the bottom surface of the fixed plate 20 move downward and abut against the sample, thereby fix the sample, through rotating the turntable, adjust the light transmission hole of different sizes corresponding to the sample, can replace the light transmission hole according to the size of the sample, avoid the problem of affecting the test spectrum result caused by light leakage, make the adjustment of the light transmission hole more convenient and fast, improve the efficiency of the infrared spectrometer test.

[0039] It is obvious to a person skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An infrared spectrometer sample holder comprising a back plate (1), a turntable (5), a mounting plate (12), a swivel (13) and a moving plate (18), characterized in that: The backboard (1) is provided with a light-transmitting window (7), and a thin circular plate (2) is rotatably installed on the backboard (1), a circle of light-transmitting holes (8) are formed around a center point on the thin circular plate (2), the diameters of the five groups of light-transmitting holes (8) are gradually reduced, a gear ring A (3) is installed on the outer ring of the thin circular plate (2), a connecting plate (4) is installed on the backboard (1), a rotating disc (5) is rotatably installed on the connecting plate (4), a handle (11) is installed on the rotating disc (5), a gear ring B (6) is installed on the outer ring of the rotating disc (5), and the gear ring B (6) is engaged with the gear ring A (3).

2. An infrared spectrometer sample holder according to claim 1, wherein: A support (22) is installed on the backboard (1), an installation plate (12) is installed at the top end of the support (22), a moving plate (18) is installed on the installation plate (12), a threaded rod (19) is threadedly installed in a threaded hole in the moving plate (18), a fixed plate (20) is rotatably installed at the bottom end of the threaded rod (19), and a rubber pressing block (21) is installed on the bottom surface of the fixed plate (20).

3. An infrared spectrometer sample holder according to claim 1, wherein: A bidirectional screw rod (16) is installed in the installation plate (12), ball nuts (17) are threadedly installed on the threads in two different directions on the bidirectional screw rod (16), the ball nuts (17) are connected with the moving plate (18), and one end of the bidirectional screw rod (16) is connected with a rotating ring (13) rotatably installed on the installation plate (12).

4. The infrared spectrometer sample holder of claim 1, wherein: A circle of fixing holes (9) are formed on the rotating disc (5), fixing rods (10) are inserted into the fixing holes (9), and a butt joint hole is formed on the connecting plate (4).

5. An infrared spectrometer sample holder according to claim 1, wherein: Limiting holes (14) are formed on the rotating ring (13), limiting rods (15) are inserted into the limiting holes (14), and a butt joint hole is formed on the installation plate (12).

6. An infrared spectrometer sample holder according to claim 1, wherein: The bottom surface of the thin circular plate (2) is attached to the top surface of the backboard (1).

7. An infrared spectrometer sample holder according to claim 3, wherein: Sliding blocks installed on the ball nuts (17) are slidingly connected with sliding grooves formed on the inner wall of the installation plate (12).

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