Spectrophotometer sampling device convenient for adjusting placement space

Abstract

The utility model relates to the technical field of spectrophotometers, in particular to a spectrophotometer sampling device convenient for adjusting a placing space, which comprises a sampling seat and an adjusting mechanism, a plurality of groups of sample introduction grooves are uniformly formed in the sample introduction seat, and the sample introduction seat is movably connected with an open groove in the ultraviolet spectrophotometer main body; the adjusting mechanism is adjustably mounted between the sample introduction seat and the ultraviolet spectrophotometer main body and is used for driving the sample introduction seat to perform displacement adjustment in the horizontal direction along the open slot and perform displacement adjustment in the vertical direction along the open slot. According to the utility model, the adjusting mechanism is used for conveniently driving the sample introduction seat to carry out displacement adjustment in the horizontal direction and the vertical direction along the open groove, so that detection light rays passing through cuvettes with different capacities and the inner wall of the open groove are facilitated, the detection efficiency is improved, and the adjustment is more convenient and quicker; by arranging the sealing mechanism, the top end of the cuvette can be conveniently sealed, the sample liquid in the cuvette is prevented from leaking during adjustment, and the detection efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spectrophotometers, in particular to a spectrophotometer sample feeding device which is convenient for adjusting the placement space. Background Art

[0002] A spectrophotometer is an instrument that uses spectrophotometry to perform qualitative and quantitative analysis of substances. Spectrophotometry is a method of performing qualitative and quantitative analysis of a substance by measuring the absorbance of light at a specific wavelength or within a certain wavelength range.

[0003] A Chinese patent with authorization announcement number CN217738989U discloses an ultraviolet spectrophotometer sampling device that is easy to adjust the placement space. It includes an ultraviolet spectrophotometer body, a slot is opened on one side of the ultraviolet spectrophotometer body, and a cuvette is inserted into the interior of the support. The slot on one side of the ultraviolet spectrophotometer body is used to store the support, and the support is used to place the cuvette. The longitudinal position of the support is adjusted according to the size and specifications of the cuvette. The application range is wide. The support is conveniently adjusted through the cooperation of the screw and the adjustment structure. It is easy to use. The limit structure can prevent the support from rotating, thereby ensuring the adjustment effect of the support.

[0004] However, the above-mentioned disclosed solution has the following shortcomings: when the above-mentioned sample injection device is in use, the handle is set at the bottom of the ultraviolet spectrophotometer body, which is not convenient for adjustment and cannot drive the cuvette to be adjusted horizontally. It is not convenient for the cuvette to quickly adapt to the detection light passing through the inner wall of the slot, which brings inconvenience to use and reduces detection efficiency. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and to provide a spectrophotometer sample feeding device which is convenient for adjusting the placement space.

[0006] The technical solution of the utility model is: a spectrophotometer sampling device with easy adjustment of placement space, comprising a sampling seat, on which multiple groups of sampling slots are evenly arranged, and the sampling seat is movably connected to the slots on the ultraviolet spectrophotometer body; and an adjustment mechanism, which is adjustably installed between the sampling seat and the ultraviolet spectrophotometer body and is used to drive the sampling seat to perform horizontal displacement adjustment along the slots and to perform vertical displacement adjustment along the slots.

[0007] Preferably, the injection seat is movably connected to the slot, a connecting seat is installed at the side end of the injection seat, and the other end of the connecting seat is connected to the adjustment mechanism.

[0008] Preferably, a first telescopic rod is installed at one end of the bottom of the injection seat, a slider is installed at the bottom end of the first telescopic rod, a limiting slide groove is provided at the bottom end of the slotted interior, and the slider is slidably connected to the limiting slide groove.

[0009] Preferably, the adjustment mechanism includes a mounting box; a screw, the top end of which is rotatably connected to the top end of the mounting box, the end on the connecting seat away from the injection seat is threadedly connected to the screw, and the connecting seat is slidably connected to the mounting box; and a second adjustment rod, which is rotatably connected to the mounting box and passes through the slot, the mounting box is movably connected to the main body of the ultraviolet spectrophotometer, and a transmission assembly is provided between the second adjustment rod and the end of the screw.

[0010] Preferably, the transmission assembly is composed of two sets of meshing bevel gears, and the two sets of bevel gears are respectively installed at the ends of the screw and the second adjusting rod.

[0011] Preferably, the adjustment mechanism also includes a stabilizing component, which is arranged on the outer wall of the ultraviolet spectrophotometer body, and the stabilizing component includes a fixing seat, which is installed on the outer wall of the ultraviolet spectrophotometer body; a first adjusting rod, which is slidably connected to the fixing seat, and a limit block is installed at the bottom end of the first adjusting rod, and the limit block abuts against the second adjusting rod; and a first spring, which is movably sleeved on the first adjusting rod, one end of the first spring is connected to the bottom end of the fixing seat, and the other end of the first spring is connected to the top of the limit block.

[0012] Preferably, a sealing mechanism is provided at the top of the sample injection seat, and the sealing mechanism is used to seal the tops of cuvettes of different capacities.

[0013] Preferably, the sealing mechanism includes two groups of elastic rods, which are symmetrically installed on the top of the injection seat; and a horizontal plate, which is installed between the tops of the two groups of elastic rods, and multiple groups of sealing covers are installed on the horizontal plate, and the sealing covers correspond to the injection slots.

[0014] Compared with the existing technology, the above-mentioned technical solution of the present invention has the following beneficial technical effects: the present invention facilitates driving the sample injection seat to perform horizontal displacement adjustment along the slot and vertical displacement adjustment along the slot through the adjustment mechanism, which facilitates the matching of cuvettes of different capacities with the detection light passing through the inner wall of the slot, improves the detection efficiency, and makes the adjustment more convenient and quick; the setting of the stabilizing component facilitates improving the stability of the second adjustment rod to avoid interfering with the stability of the sample injection seat after adjustment; the setting of the sealing mechanism facilitates sealing the top of the cuvette to avoid leakage of the sample liquid inside the cuvette during adjustment, further improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic structural diagram of part A of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the connecting seat and the adjustment mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the connection between the sealing mechanism and the injection seat of the utility model.

[0019] Figure numerals: 1. UV spectrophotometer body; 101. slot; 102. limit slide; 2. fixed seat; 201. first adjusting rod; 202. limit block; 203. first spring; 3. injection seat; 301. injection slot; 302. first telescopic rod; 303. slider; 304. connecting seat; 4. second telescopic rod; 401. second spring; 402. horizontal plate; 403. sealing cover; 5. mounting box; 501. roller; 502. second adjusting rod; 503. bevel gear; 504. screw. DETAILED DESCRIPTION

[0020] Example 1

[0021] like Figure 1 、 Figure 3 and Figure 4 As shown, the present invention proposes a spectrophotometer sampling device that is easy to adjust the placement space, including a sampling seat 3 and an adjustment mechanism; a plurality of sampling slots 301 are evenly arranged on the sampling seat 3 for placing cuvettes, and the sampling seat 3 is movably connected to the slot 101 on the ultraviolet spectrophotometer body 1, and the slot 101 is used to place the sample night to be measured. A window is provided on one side of the slot 101, which will emit light, and it is light of a specific wavelength. A corresponding window for receiving light is provided on the opposite side. Once the sample night to be tested is placed in the slot 101, the sample night will absorb a certain part of the wavelength of light, so the received spectrum is no longer a continuous spectrum, and the composition and amount of the material are detected by this blocked part; the adjustment mechanism can be adjustably installed between the sampling seat 3 and the ultraviolet spectrophotometer body 1, and is used to drive the sampling seat 3 to perform horizontal displacement adjustment along the slot 101 and vertical displacement adjustment along the slot 101.

[0022] Furthermore, the injection seat 3 is movably connected to the slot 101 , and a connecting seat 304 is installed at a side end of the injection seat 3 , and the other end of the connecting seat 304 is connected to the adjustment mechanism.

[0023] Furthermore, a first telescopic rod 302 is installed at one end of the bottom of the sample injection seat 3, a slider 303 is installed at the bottom end of the first telescopic rod 302, a limiting slide groove 102 is opened at the bottom end of the slot 101, and the slider 303 is slidably connected to the limiting slide groove 102.

[0024] Furthermore, the adjustment mechanism includes a mounting box 5, a screw 504 and a second adjustment rod 502; the mounting box 5 is set to be L-shaped, and a roller 501 is installed at the bottom end of the mounting box 5, and the roller 501 is rollingly connected to the limiting slide groove 102; the top end of the screw 504 is rotated to connect to the top end of the mounting box 5, and the end on the connecting seat 304 and away from the injection seat 3 is threadedly connected to the screw 504, and the connecting seat 304 is slidingly connected to the mounting box 5; the second adjustment rod 502 is rotated to connect to the mounting box 5 and passes through the slot 101, the mounting box 5 is movably connected to the ultraviolet spectrophotometer body 1, and a transmission assembly is provided between the second adjustment rod 502 and the end of the screw 504.

[0025] Furthermore, the transmission assembly is composed of two sets of meshing bevel gears 503 , and the two sets of bevel gears 503 are respectively installed on the ends of the screw rod 504 and the second adjusting rod 502 .

[0026] In this embodiment, the door at the top of the slot 101 is opened, and the cuvette containing the sample solution is placed in a suitable sample injection slot 301. The second adjustment rod 502 is held and slid horizontally along the UV spectrophotometer body 1. Under the action of the slider 303 and the roller 501, the sample injection seat 3 is driven to slide horizontally along the limiting slide groove 102 at the bottom end of the slot 101 to a suitable position, thereby adjusting the cuvette to a suitable position to facilitate matching the detection light passing through the inner wall of the slot 101 and improve detection efficiency.

[0027] When it is necessary to use cuvettes of different capacities, the second adjusting rod 502 is rotated, and the screw 504 is rotated along the top of the mounting box 5 through the action of the bevel gear 503. Due to the guidance of the slider 303, the first telescopic rod 302 and the limiting slide groove 102, the connecting seat 304 moves upward or downward along the screw 504 for adjustment, thereby driving the sample injection seat 3 to adjust vertically inside the slot 101, so that the cuvette matches the detection light passing through the inner wall of the slot 101, thereby improving the detection efficiency.

[0028] Example 2

[0029] like Figure 1 and Figure 2As shown, the present invention proposes a spectrophotometer sampling device that is easy to adjust the placement space. Compared with the first embodiment, the adjustment mechanism also includes a stabilizing component, which is arranged on the outer wall of the ultraviolet spectrophotometer body 1. The stabilizing component includes a fixing seat 2, a first adjusting rod 201 and a first spring 203; the fixing seat 2 is installed on the outer wall of the ultraviolet spectrophotometer body 1; the first adjusting rod 201 is slidably connected to the fixing seat 2, and a limiting block 202 is installed at the bottom end of the first adjusting rod 201, and the limiting block 202 abuts against the second adjusting rod 502. The abutting end of the limiting block 202 is provided with an anti-slip pad, which is convenient for limiting the position of the second adjusting rod 502 to avoid easy movement and interference with the sampling seat 3; the first spring 203 is movably sleeved on the first adjusting rod 201, one end of the first spring 203 is connected to the bottom end of the fixing seat 2, and the other end of the first spring 203 is connected to the top of the limiting block 202.

[0030] In this embodiment, the first adjusting rod 201 is held and slid upward along the fixing seat 2 so that the first spring 203 is compressed, and at the same time the limit block 202 moves away from the second adjusting rod 502. At this time, the second adjusting rod 502 loses its limit, and the second adjusting rod 502 can be adjusted to adjust the injection seat 3. After the adjustment is completed, the first adjusting rod 201 is released, and the limit block 202 is driven to abut against the second adjusting rod 502 under the action of the elastic force of the first spring 203, so that the second adjusting rod 502 can be limited.

[0031] Example 3

[0032] like Figure 1 and Figure 4 As shown, the present invention proposes a spectrophotometer sampling device that is easy to adjust the placement space. Compared with Example 1, a sealing mechanism is provided at the top of the sampling seat 3, which is used to seal the top of the cuvettes of different capacities to prevent the sample liquid from leaking during the adjustment process.

[0033] Furthermore, the sealing mechanism includes elastic rods and a horizontal plate 402; two groups of elastic rods are provided, and the two groups of elastic rods are symmetrically installed on the top of the injection seat 3, and the elastic rods are composed of a second telescopic rod 4 and a second spring 401 sleeved on the outside thereof; the horizontal plate 402 is installed between the top ends of the two groups of elastic rods, and multiple groups of sealing covers 403 are installed on the horizontal plate 402, and the sealing covers 403 correspond to the injection slots 301.

[0034] In this embodiment, the horizontal plate 402 is pulled in a direction away from the sample injection seat 3 so that the second telescopic rod 4 and the second spring 401 are stretched, the cuvette is placed in the sample injection slot 301, and the horizontal plate 402 is loosened so that the sealing cover 403 is buckled on the top of the cuvette, thereby sealing the cuvette to prevent the sample liquid inside it from leaking during adjustment, thereby improving the detection efficiency.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A spectrophotometer sample introduction device that is easy to adjust the placement space, characterized in that: include A sample injection seat (3) is provided with a plurality of sample injection slots (301) evenly arranged thereon, and the sample injection seat (3) is movably connected to the slots (101) on the UV spectrophotometer body (1); and an adjustment mechanism, which is adjustably installed between the sample injection seat (3) and the ultraviolet spectrophotometer body (1) and is used to drive the sample injection seat (3) to perform horizontal displacement adjustment along the slot (101) and to perform vertical displacement adjustment along the slot (101).

2. A spectrophotometer sample introduction device with easy-to-adjust placement space according to claim 1, characterized in that: The injection seat (3) is movably connected to the slot (101), and a connecting seat (304) is installed at the side end of the injection seat (3), and the other end of the connecting seat (304) is connected to the adjustment mechanism.

3. The spectrophotometer sample introduction device with easy-to-adjust placement space according to claim 2, characterized in that: A first telescopic rod (302) is installed at one end of the bottom of the sample injection seat (3), a slider (303) is installed at the bottom end of the first telescopic rod (302), a limiting slide groove (102) is provided at the bottom end of the slot (101), and the slider (303) is slidably connected to the limiting slide groove (102).

4. The spectrophotometer sample introduction device with easy-to-adjust placement space according to claim 3, characterized in that: The regulating mechanism includes Installation box (5); The top end of the screw rod (504) is rotatably connected to the top end of the inner portion of the mounting box (5), and the end of the connecting seat (304) away from the injection seat (3) is threadedly connected to the screw rod (504), and the connecting seat (304) is slidably connected to the mounting box (5); and a second adjusting rod (502) which is rotatably connected to the mounting box (5) and passes through the slot (101); the mounting box (5) is movably connected to the ultraviolet spectrophotometer body (1); and a transmission assembly is provided between the second adjusting rod (502) and the end of the screw rod (504).

5. The spectrophotometer sample introduction device with easy-to-adjust placement space according to claim 4, characterized in that: The transmission assembly is composed of two sets of meshing bevel gears (503), which are respectively mounted on the ends of the screw rod (504) and the second adjusting rod (502).

6. The spectrophotometer sample introduction device with easy-to-adjust placement space according to claim 5, characterized in that: The regulating mechanism also includes a stabilizing component, which is arranged on the outer wall of the ultraviolet spectrophotometer body (1). The stabilizing component includes A fixing seat (2) is mounted on the outer wall of the ultraviolet spectrophotometer body (1); A first adjusting rod (201) is slidably connected to the fixing seat (2), a limiting block (202) is installed at the bottom end of the first adjusting rod (201), and the limiting block (202) is in contact with the second adjusting rod (502); and a first spring (203) movably sleeved on the first regulating rod (201), one end of the first spring (203) being connected to the bottom end of the fixing seat (2), and the other end of the first spring (203) being connected to the top end of the limiting block (202).

7. The spectrophotometer sample introduction device with easy-to-adjust placement space according to claim 1, characterized in that: The top of the sample injection seat (3) is provided with a sealing mechanism, which is used to seal the tops of cuvettes of different capacities.

8. The spectrophotometer sample introduction device with easy-to-adjust placement space according to claim 7, characterized in that: Sealing mechanism includes Two sets of elastic rods are provided, and the two sets of elastic rods are symmetrically mounted on the top of the injection seat (3); and a transverse plate (402) installed between the top ends of the two sets of elastic rods. A plurality of sealing covers (403) are installed on the transverse plate (402), and the sealing covers (403) correspond to the sample injection slots (301).

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