Sampling device of atomic absorption spectrophotometer

Abstract

The utility model discloses an atomic absorption spectrophotometer sample introduction device which structurally comprises a photometer main body, a sample introduction device, a control panel and four supporting legs, the top of the photometer main body is provided with the sample introduction device, the control panel is located on the top end face of the photometer main body, and the number of the supporting legs is four. The supporting legs are respectively arranged on the bottom end surface of the photometer main body; the sample introduction device comprises a supporting frame, a light reflector hole, a supporting partition plate, a supporting base, a jacking device and a servo motor, and the supporting frame is arranged in the photometer main body; the servo motor is used for driving the pipe body to rotate on the end face of the clamping ring, so that the threaded seat and the threaded rod are movably matched to drive the supporting base to move back and forth, different solution reagents are automatically moved to positions corresponding to light reflector holes for detection, and then substances contained in solutions are detected; friction force is increased through contact between multiple layers of rubber on the end face of the clamping ring and the end face of the test tube, so that the test tube can be detected in a vertical state.

Description

Technical Field

[0001] The utility model relates to the technical field of spectrophotometers, in particular to a sample injection device for an atomic absorption spectrophotometer. Background Art

[0002] A spectrophotometer is an instrument that uses spectrophotometry to perform qualitative and quantitative analysis on substances. Spectrophotometry is a method of performing qualitative and quantitative analysis on a substance by measuring the absorbance of light at a specific wavelength or within a certain wavelength range. With the continuous development of the photometer industry, more and more companies and industries have used photometers, and a large number of companies have entered the field of photometers and developed. Most photometers are used to detect the components in solutions. When testing solutions, different solutions need to be sampled and monitored in order to accurately detect the substances contained in the solutions. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention is achieved through the following technical solutions:

[0004] As a further optimization of the technical solution, its structure includes a photometer body, a sample injection device, a control panel, and support feet. The top of the photometer body is provided with a sample injection device, the control panel is located at the top end surface of the photometer body, four support feet are provided, and the support feet are respectively arranged on the bottom end surface of the photometer body; the sample injection device includes a support frame, a light-emitting mirror hole, a support partition, a support base, a push-up device, and a servo motor. The support frame is arranged inside the photometer body, the light-emitting mirror hole is provided with two, and the light-emitting mirror holes are respectively located on the left and right sides of the support frame, the support partition is arranged at the inner bottom end of the support frame, the support base is clamped and installed on the end surface of the support partition, the push-up device is arranged at the inner rear end of the support frame, and the servo motor is meshed and connected with the push-up device.

[0005] As a further optimization of the present technical solution, the jacking device includes a connecting seat, a threaded rod, a clamping ring, a tube body, a threaded seat, and a toothed disc. The connecting seat is fixedly mounted on the bottom end face of the support base, the threaded rod is clamped on the end face of the connecting seat, the clamping ring is provided with two end faces respectively fixedly mounted on the support frame, the outer end face of the tube body is movably engaged with the clamping ring, the threaded seat is arranged at the inner front end of the tube body, and the threaded seat is threadedly matched with the threaded rod, the toothed disc is located on the rear end face of the tube body, and the toothed disc is meshedly connected with the servo motor.

[0006] As a further optimization of the present technical solution, the support base includes a frame, a fixed plate, and a limit seat. The bottom end surface of the frame is connected to the connecting seat. Three fixed plates are provided, and the fixed plates are arranged on the inner end surface of the frame. Three limit seats are provided, and the limit seats are arranged on the bottom end surface of the frame.

[0007] As a further optimization of the present technical solution, the fixed plate includes a plate body, a through groove, and a clamping ring. The plate body is fixedly connected to the inner end surface of the frame body, the through groove is located in the middle of the plate body, and the clamping ring is fixedly connected to the side end surface of the through groove.

[0008] As a further optimization of the technical solution, the end face of the clamping ring is stacked with five layers of rubber, and the angle formed by the clamping ring and the end face of the plate body is 15 degrees. Beneficial Effects

[0009] Compared with the prior art, the atomic absorption spectrophotometer sample injection device of the utility model has the following advantages:

[0010] The utility model utilizes a servo motor to drive the end face of the tube body clamped in the clamping ring to rotate, so that the threaded seat and the threaded rod can cooperate to drive the supporting base to move forward and backward, and different solution reagents are automatically moved to the position corresponding to the light-emitting mirror hole for detection, and then the substances contained in the solution are detected, and then the friction is increased by the contact between the multi-layer rubber on the end face of the clamping ring and the end face of the test tube, so that the test tube can be kept in an upright state for detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0012] Figure 1 The utility model is a schematic diagram of the main structure of an atomic absorption spectrophotometer sample injection device.

[0013] Figure 2 The utility model is a schematic diagram of the side cross-sectional structure of a sample injection device of an atomic absorption spectrophotometer.

[0014] Figure 3 The utility model is a schematic diagram of the side cross-sectional structure of a push-moving device of an atomic absorption spectrophotometer sampling device.

[0015] Figure 4 The utility model is a schematic diagram of the top view of the supporting base of the atomic absorption spectrophotometer sampling device.

[0016] Figure 5 The utility model is a schematic diagram of a side cross-sectional structure of a fixed plate of an atomic absorption spectrophotometer sample injection device.

[0017] In the figure: photometer body 1, sample injection device 2, control panel 3, support feet, support frame 21, light-emitting mirror hole 22, support partition 23, support base 24, push device 25, servo motor 26, connecting seat 251, threaded rod 252, snap ring 253, tube body 254, threaded seat 255, gear disc 256, frame a1, fixed plate a2, limit seat a3, plate body a21, through groove a22, clamping ring a23. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the preferred implementation scheme of the present invention is further described below in conjunction with specific implementation schemes and accompanying drawings. Example

[0019] See also Figure 1-Figure 5 The utility model provides an atomic absorption spectrophotometer sample injection device, which structure includes a photometer body 1, a sample injection device 2, a control panel 3, and a support foot 4. The top of the photometer body 1 is provided with a sample injection device 2, and the control panel 3 is located at the top end surface of the photometer body 1. The support foot 4 is provided with four, and the support foot 4 is respectively arranged on the bottom end surface of the photometer body 1; the sample injection device 2 includes a support frame 21, a light-emitting mirror hole 22, a support partition 23, a support base 24, a push-up device 25, and a servo motor 26. The support frame 21 is arranged inside the photometer body 1, and the light-emitting mirror hole 22 is provided with two, and the light-emitting mirror holes 22 are respectively located on the left and right sides of the support frame 21. The support partition 23 is arranged at the inner bottom end of the support frame 21, and the support base 24 is clamped and installed on the end surface of the support partition 23. The push-up device 25 is arranged at the inner rear end of the support frame 21, and the servo motor 26 is meshed and connected with the push-up device 25.

[0020] The jacking device 25 includes a connecting seat 251, a threaded rod 252, a snap ring 253, a tube body 254, a threaded seat 255, and a toothed disc 256. The connecting seat 251 is fixedly installed on the bottom end surface of the support base 24, the threaded rod 252 is snap-fitted on the end surface of the connecting seat 251, the snap ring 253 is provided with two end surfaces respectively fixedly installed on the support frame 21, the outer end surface of the tube body 254 is movably snapped with the snap ring 253, the threaded seat 255 is arranged at the inner front end of the tube body 254, and the threaded seat 255 is threadedly matched with the threaded rod 252, the toothed disc 256 is located at the rear end surface of the tube body 254, and the toothed disc 256 is meshedly connected with the servo motor 26.

[0021] The support base 24 includes a frame a1, a fixed plate a2, and a limit seat a3. The bottom end surface of the frame a1 is connected to the connecting seat 251. Three fixed plates a2 are provided, and the fixed plates a2 are arranged on the inner end surface of the frame a1. Three limit seats a3 are provided, and the limit seats a3 are arranged on the bottom end surface of the frame a1.

[0022] The fixed plate a2 includes a plate body a21, a through groove a22, and a clamping ring a23. The plate body a21 is fixedly connected to the inner end surface of the frame body a1. The through groove a22 is located in the middle of the plate body a21. The clamping ring a23 is fixedly connected to the side end surface of the through groove a22.

[0023] The end surface of the clamping ring a23 is stacked with five layers of rubber, and the angle formed by the clamping ring a23 and the end surface of the plate body a21 is 15 degrees.

[0024] Working principle: When the substance in the solution is to be detected, the top cover in the support frame 21 can be opened, and then a variety of solutions can be placed in the test tube and placed on the upper end of the support base 24, and then the top cover of the support frame 21 can be closed, and finally the light can be controlled by the control panel 3 to illuminate the solution through the light-emitting mirror hole 22 for detection. When the solution is sampled, the servo motor 26 can drive the tube body 254 to rotate on the end face of the clamping ring 253, so that the threaded seat 255 and the threaded rod 252 can cooperate with each other to drive the support base 24 to move back and forth, and move different solution reagents to the position corresponding to the light-emitting mirror hole 22 for detection, and then detect the substances contained in the solution. When the test tube is placed in the solution and in the support base 24, the limit seat a3 can contact the bottom of the test tube to prevent the test tube from tipping over after being subjected to inertia, and then the clamping ring a23 in the plate body a21 can be used to clamp the test tube. The multi-layer rubber on the end face of the clamping ring a23 contacts the end face of the test tube to increase the friction, so that the test tube can remain upright for detection.

[0025] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit or basic features of the utility model, the utility model can be implemented in other specific forms and various changes and improvements can be made. These changes and improvements all fall within the scope of the utility model to be protected. Therefore, the scope of protection of the utility model is defined by the attached claims and their equivalents, rather than the above description.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An atomic absorption spectrophotometer sample injection device, comprising a photometer body (1), a sample injection device (2), a control panel (3), and support legs (4), wherein the top of the photometer body (1) is provided with the sample injection device (2), the control panel (3) is located on the top end surface of the photometer body (1), and four support legs (4) are provided, and the support legs (4) are respectively arranged on the bottom end surface of the photometer body (1), characterized in that: The sample introduction device (2) comprises a support frame (21), a light-emitting mirror hole (22), a support baffle (23), a support base (24), a push-up device (25), and a servo motor (26); the support frame (21) is arranged inside the photometer body (1); two light-emitting mirror holes (22) are provided, and the light-emitting mirror holes (22) are respectively located on the left and right sides of the support frame (21); the support baffle (23) is arranged at the bottom end inside the support frame (21); the support base (24) is clamped and installed on the end surface of the support baffle (23); the push-up device (25) is arranged at the rear end inside the support frame (21); and the servo motor (26) is meshedly connected to the push-up device (25).

2. The atomic absorption spectrophotometer sample injection device according to claim 1, characterized in that: The jacking device (25) comprises a connecting seat (251), a threaded rod (252), a snap ring (253), a tube (254), a threaded seat (255), and a toothed disc (256); the connecting seat (251) is fixedly mounted on the bottom end surface of the support base (24); the threaded rod (252) is snap-fitted on the end surface of the connecting seat (251); the snap ring (253) is provided with two end surfaces respectively fixedly mounted on the support frame (21); the outer end surface of the tube (254) is movably snap-fitted with the snap ring (253); the threaded seat (255) is arranged at the inner front end of the tube (254); the threaded seat (255) and the threaded rod (252) are threadedly matched; the toothed disc (256) is located at the rear end surface of the tube (254); and the toothed disc (256) is meshingly connected with the servo motor (26).

3. The atomic absorption spectrophotometer sample injection device according to claim 2, characterized in that: The support base (24) comprises a frame (a1), a fixed plate (a2), and a limit seat (a3); the bottom end surface of the frame (a1) is connected to the connecting seat (251); three fixed plates (a2) are provided, and the fixed plates (a2) are arranged on the inner end surface of the frame (a1); three limit seats (a3) ​​are provided, and the limit seats (a3) ​​are arranged on the bottom end surface of the frame (a1).

4. The atomic absorption spectrophotometer sample injection device according to claim 3, characterized in that: The fixed plate (a2) comprises a plate body (a21), a through groove (a22), and a clamping ring (a23); the plate body (a21) is fixedly connected to the inner end surface of the frame body (a1); the through groove (a22) is located in the middle of the plate body (a21); and the clamping ring (a23) is fixedly connected to the side end surface of the through groove (a22).

5. The atomic absorption spectrophotometer sample injection device according to claim 4, characterized in that: The end face of the clamping ring (a23) is composed of five layers of rubber, and the angle formed by the clamping ring (a23) and the end face of the plate body (a21) is 15 degrees.

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