ICP spectrometer torch tube lifting device

Abstract

The utility model belongs to the technical field of ICP spectrometers, and discloses an ICP spectrometer torch tube lifting device which comprises a box body, a square opening is formed in the box body, a mounting frame is arranged in the square opening, two sliding grooves with opposite groove openings are vertically formed in the mounting frame, and a mounting plate is arranged in the two sliding grooves in a sliding mode. The mounting plate is provided with a fixing seat for fixing a quartz torch tube, the inner side plate surface of the mounting plate is provided with a mounting block, the mounting block is vertically and rotatably provided with a threaded rod, the inner wall of the box body is provided with a fixing block above the mounting frame, the fixing block is spirally matched with the threaded rod through a threaded hole, and the top of the box body is provided with a fixing assembly for fixing the threaded rod. The threaded rod is rotated, so that the mounting block and the mounting plate are driven to move up and down, the fixed seat and the quartz torch tube are further driven to move up and down, the height of the quartz torch tube is adjusted, and the up-down position of plasma flame is conveniently and accurately adjusted to be aligned with the light path cylinder and the entrance slit.

Description

Technical Field

[0001] The utility model relates to the technical field of ICP spectrometers, in particular to a torch tube lifting device for an ICP spectrometer. Background Art

[0002] An ICP spectrometer is an analytical instrument used in the field of materials science. After the sample is processed into a solution, it is turned into a complete sol by a super atomizing device and introduced into the tube from the bottom. It is sprayed into the plasma torch from the nozzle through the quartz torch tube at the axis. When the sample aerosol enters the plasma flame, most of it is immediately decomposed into excited atoms and ions. When these excited particles return to the stable ground state, they will release a certain amount of energy (manifested as a spectrum of a certain wavelength). By measuring the specific spectral lines and intensities of each element and comparing them with the standard solution, the types and contents of the elements contained in the sample can be known.

[0003] Most of the existing quartz torch tubes of ICP spectrometers are in a fixed state and cannot adjust the height of the quartz torch tube, so it is not convenient to accurately adjust the vertical position of the plasma flame to align with the optical path tube and the entrance slit. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a torch tube lifting device for an ICP spectrometer.

[0005] The above technical object of the utility model is achieved by the following technical solutions: A torch tube lifting device for an ICP spectrometer includes a box body. A square opening is provided on the box body. An installation frame is arranged in the square opening. Two chutes with opposite openings are vertically provided in the installation frame. A mounting plate is slidably arranged in the two chutes together. A fixing seat for fixing the quartz torch tube is arranged on the front side plate surface of the mounting plate. A mounting block is arranged on the inner side plate surface of the mounting plate. A threaded rod is vertically rotatably arranged on the mounting block. The upper end of the threaded rod passes through the top of the box body and extends outside the box body. A fixing block is arranged on the inner wall of the box body above the installation frame. The fixing block is in screw fit with the threaded rod through a threaded hole. A fixing component for fixing the threaded rod is arranged on the top of the box body.

[0006] By adopting the above technical solution, a box body, a mounting frame, a mounting plate, a fixing seat, a mounting block, a threaded rod, a fixing block, and a fixing component are provided. The mounting plate can slide up and down through a sliding groove. When the threaded rod is rotated, since the fixing block is in screw fit with the threaded rod, the threaded rod moves up and down when rotated, thereby driving the mounting block and the mounting plate to move up and down, and further driving the fixing seat and the quartz torch tube to move up and down, so as to adjust the height of the quartz torch tube, thereby facilitating the accurate adjustment of the up and down position of the plasma flame to be aligned with the optical path tube and the incident slit, and the observation effect is better; when the height does not need to be adjusted, the fixing component is used to fix the threaded rod to prevent the threaded rod from rotating under the action of external force, thereby ensuring the stability of the mounting plate, the fixing seat, and the quartz torch tube.

[0007] Further, a fixing plate is arranged on the front side plate surface of the mounting plate, and the front side plate surface of the fixing plate is coplanar with the front side surface of the mounting frame.

[0008] By adopting the above technical solution, the front side plate surface of the fixing plate is set to be coplanar with the front side surface of the mounting frame, so that the highest position where the mounting plate rises is when the top of the fixing plate contacts the top of the mounting frame, and the lowest position where the mounting plate descends is when the bottom of the fixing plate contacts the bottom of the mounting frame, thereby limiting the lifting position of the mounting plate.

[0009] Further, two first through holes are arranged on the lower side plate surface of the mounting plate at horizontal intervals, first round holes corresponding to the first through holes are arranged on the fixing plate, a first pressing plate is arranged on the rear side plate surface of the mounting plate, first through holes corresponding to the first through holes are arranged on the first pressing plate, and first screw holes corresponding to the first through holes are arranged on the fixing seat. Screws pass through the first through holes, the first through holes, and the first round holes and are screwed into the first screw holes to fix the fixing seat.

[0010] By adopting the above technical solution, the first through holes, the first round holes, the first pressing plate, the first through holes, and the first screw holes are provided. The screws pass through the first through holes, the first through holes, and the first round holes and are screwed into the first screw holes to fix the fixing seat, so that the fixing seat and the first pressing plate clamp the mounting plate and the fixing plate, thereby making the pressure in the contact area between the mounting plate and the first pressing plate smaller, avoiding the direct screwing of the screws on the mounting plate so that the heads of the screws contact the mounting plate, and since the contact area between the heads of the screws and the mounting plate is smaller, the pressure in the contact area between the mounting plate and the heads of the screws is larger, which is likely to cause damage to the mounting plate.

[0011] Further, two second through holes are arranged on the upper side plate surface of the mounting plate at horizontal intervals, a second pressing plate is arranged on the front side plate surface of the mounting plate, second through holes corresponding to the through holes are arranged on the second pressing plate, and second screw holes corresponding to the second through holes are arranged on the mounting block. Screws pass through the second through holes and the second through holes and are screwed into the second screw holes to fix the mounting block.

[0012] By adopting the above technical solution, a second through hole, a second pressing plate, a second via hole, and a second screw hole are provided. The screw passes through the second via hole and the second through hole and is screwed into the second screw hole to fix the mounting block, so that the mounting block and the second pressing plate clamp the mounting plate, thereby making the pressure in the contact area between the mounting plate and the second pressing plate smaller. This avoids directly screwing the screw onto the mounting plate, which would cause the head of the screw to contact the mounting plate. Since the contact area between the head of the screw and the mounting plate is small, the pressure in the contact area between the mounting plate and the head of the screw is large, which is likely to cause damage to the mounting plate.

[0013] Further, the fixing assembly includes two vertical plates spaced apart on the top of the box body. A bidirectional screw is rotatably arranged between the two vertical plates. The rod core of the bidirectional screw is located on a horizontal plane and perpendicular to the length direction of the threaded rod. Clamping plates are respectively arranged on both sides of the bidirectional screw in a spiral and rotatable manner. A sliding rod is arranged between the two vertical plates. The sliding rod is parallel to the bidirectional screw. The two clamping plates are respectively matched with the sliding rod through guide holes.

[0014] By adopting the above technical solution, the vertical plates, the bidirectional screw, the clamping plates, and the sliding rod are provided. The combined action of the bidirectional screw and the sliding rod makes the clamping plates unable to rotate. Rotating the bidirectional threaded rod drives the two clamping plates to slide along the sliding rod towards the threaded rod or slide away from the threaded rod respectively, thereby clamping or loosening the threaded rod. When clamped, the threaded rod is fixed.

[0015] Further, arc-shaped grooves are formed on the opposite plate surfaces of the clamping plates.

[0016] By adopting the above technical solution, arc-shaped grooves are formed on the opposite plate surfaces of the clamping plates, so that the contact area between the clamping plates and the threaded rod is larger and the fixing effect is better.

[0017] In summary, the present utility model has the following beneficial effects: In this application, a box body, a mounting frame, a mounting plate, a fixing seat, a mounting block, a threaded rod, a fixing block, and a fixing assembly are provided. Through the sliding groove, the mounting plate can slide up and down. Rotating the threaded rod, since the fixing block is in screw fit with the threaded rod, when the threaded rod rotates, it moves up and down, thereby driving the mounting block and the mounting plate to move up and down, and further driving the fixing seat and the quartz torch tube to move up and down, so as to adjust the height of the quartz torch tube, thereby facilitating the accurate adjustment of the vertical position of the plasma flame to align with the optical path tube and the entrance slit, and the observation effect is better; when the height does not need to be adjusted, the fixing assembly is used to fix the threaded rod to prevent the threaded rod from rotating under the action of external force, thereby ensuring the stability of the mounting plate, the fixing seat, and the quartz torch tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2It is a schematic structural diagram of the installation frame, installation plate, and fixing component parts of the embodiment of the present utility model;

[0020] Figure 3 It is a schematic structural diagram of the installation frame and installation plate parts of the embodiment of the present utility model;

[0021] Figure 4 It is a schematic structural diagram of another angle of the installation frame and installation plate parts of the embodiment of the present utility model;

[0022] Figure 5 It is a schematic structural diagram of the fixing component part of the embodiment of the present utility model.

[0023] In the figure: 10, box body; 11, installation frame; 12, sliding groove; 20, installation plate; 201, first through hole; 202, second through hole; 21, fixing seat; 22, installation block; 23, threaded rod; 24, fixing block; 25, fixing plate; 251, first round hole; 26, first pressing plate; 27, first through hole; 28, second pressing plate; 29, second through hole; 30, fixing component; 31, vertical plate; 32, bidirectional screw; 33, clamping plate; 34, sliding rod; 35, arc-shaped groove. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0025] As Figures 1-5 shown, the embodiment of the present application discloses an ICP spectrometer torch tube lifting device, including a box body 10, an installation frame 11, an installation plate 20, and a fixing component 30. A square opening is provided on the box body 10, the installation frame 11 is arranged in the square opening, the installation plate 20 is vertically slidably arranged in the installation frame 11, and a fixing seat 21 is arranged on the front side plate surface of the installation plate 20. The fixing seat 21 is used to fix the quartz torch tube, so that the vertical sliding of the installation plate 20 drives the vertical sliding of the fixing seat 21 to adjust the height of the quartz torch tube, thereby facilitating the accurate adjustment of the vertical position of the plasma flame to be aligned with the optical path tube and the incident slit.

[0026] Specifically, two chutes 12 with opposite slots are vertically formed in the installation frame 11. Both sides of the installation plate 20 are slidably arranged in the chutes 12. An installation block 22 is arranged on the inner side plate surface of the installation plate 20. Specifically, when setting, two second through holes 202 arranged horizontally at intervals are formed on the upper side plate surface of the installation plate 20. A second pressing plate 28 is arranged on the front side plate surface of the installation plate 20. A second through hole 29 corresponding to the through hole is arranged on the second pressing plate 28. A second screw hole is formed on the installation block 22 corresponding to the second through hole 202. A screw passes through the second through hole 29 and the second through hole 202 and is screwed into the second screw hole to fix the installation block 22, so that the installation block 22 and the second pressing plate 28 clamp the installation plate 20, thereby making the pressure in the contact area between the installation plate 20 and the second pressing plate 28 smaller, avoiding the screw directly screwing on the installation plate 20 and the head of the screw contacting the installation plate 20. Since the contact area between the head of the screw and the installation plate 20 is small, the pressure in the contact area between the installation plate 20 and the head of the screw is large, which is likely to cause damage to the installation plate 20.

[0027] A threaded rod 23 is vertically rotatably arranged on the installation block 22, so that the threaded rod 23 can rotate relative to the installation block 22. The upper end of the threaded rod 23 passes through the top of the box body 10 and extends outside the box body 10 and is provided with a screwing cap, which is convenient for the staff to rotate the threaded rod 23. A fixing block 24 is arranged on the inner wall of the box body 10 above the installation frame 11. The fixing block 24 is in screw fit with the threaded rod 23 through a threaded hole. When the threaded rod 23 is rotated, due to the screw fit between the fixing block 24 and the threaded rod 23, the threaded rod 23 moves up and down when rotating, thereby driving the installation block 22 and the installation plate 20 to move up and down, and further driving the fixing seat 21 and the quartz torch tube to move up and down to adjust the height of the quartz torch tube. Specifically, when setting, the threaded rod 23 is only provided with threads on the middle rod body, and the upper and lower rod bodies are both smooth rods, which is more beautiful and convenient for processing.

[0028] A fixing plate 25 is provided on the front side surface of the mounting plate 20. The front side surface of the fixing plate 25 is coplanar with the front side surface of the mounting frame 11. The highest position of the mounting plate 20 when it rises is that the top of the fixing plate 25 contacts the top of the mounting frame 11, and the lowest position of the mounting plate 20 when it descends is that the bottom of the fixing plate 25 contacts the bottom of the mounting frame 11, thereby limiting the lifting position of the mounting plate 20. Two horizontally spaced first through holes 201 are formed on the lower side surface of the mounting plate 20. The fixing plate 25 is provided with first circular holes 251 corresponding to the first through holes 201. A first pressing plate 26 is provided on the rear side surface of the mounting plate (20). The first pressing plate 26 is provided with first through holes 27 corresponding to the first through holes 201. The fixing base 21 is provided with first screw holes corresponding to the first through holes 201. Screws pass through the first through holes 27, the first through holes 201, and the first circular holes 251 and are screwed into the first screw holes to fix the fixing base 21, so that the fixing base 21 and the first pressing plate 26 clamp the mounting plate 20 and the fixing plate 25, thereby making the pressure in the contact area between the mounting plate 20 and the first pressing plate 26 smaller, avoiding the screws being directly screwed on the mounting plate 20 so that the heads of the screws contact the mounting plate 20. Since the contact area between the head of the screw and the mounting plate 20 is small, the pressure in the contact area between the mounting plate 20 and the head of the screw is large, which is likely to cause damage to the mounting plate 20.

[0029] The fixing assembly 30 includes two vertical plates 31 spaced apart on the top of the box body 10. A bidirectional screw 32 is rotatably arranged between the two vertical plates 31, so that the bidirectional screw 32 can rotate relative to the vertical plates 31. The rod core of the bidirectional screw 32 is located on a horizontal plane and is perpendicular to the length direction of the threaded rod 23. Clamping plates 33 are respectively arranged on both sides of the bidirectional screw 32 in a spiral and rotating manner. A sliding rod 34 is arranged between the two vertical plates 31. The sliding rod 34 is parallel to the bidirectional screw 32. The two clamping plates 33 are respectively matched with the sliding rod 34 through guide holes. The combined action of the bidirectional screw 32 and the sliding rod 34 makes the clamping plates 33 unable to rotate. Therefore, when the bidirectional screw 32 rotates, it drives the two clamping plates 33 to slide along the sliding rod 34 towards the threaded rod 23 or slide away from the threaded rod 23 respectively, thereby clamping or loosening the threaded rod 23. When clamped, the threaded rod 23 is fixed. Arc-shaped grooves 35 are formed on the opposite plate surfaces of the clamping plates 33, so that the contact area between the clamping plates 33 and the threaded rod 23 is larger and the fixing effect is better.

[0030] In this embodiment, the working principle of the lifting device for the ICP spectrometer torch tube is as follows: When it is necessary to adjust the height of the quartz torch tube, first turn the bidirectional threaded rod 23 to drive the two clamping plates 33 to slide away from the threaded rod 23 along the sliding rod 34 respectively, so that the clamping plates 33 are separated from the threaded rod 23. Then rotate the threaded rod 23. Since the fixed block 24 is in screw fit with the threaded rod 23, when the threaded rod 23 rotates, it moves up and down, thereby driving the mounting block 22 and the mounting plate 20 to move up and down, and further driving the fixed seat 21 and the quartz torch tube to move up and down to adjust the height of the quartz torch tube until the vertical position of the plasma flame is accurately adjusted to be aligned with the optical path tube and the entrance slit, and the observation effect is better. Subsequently, turn the bidirectional threaded rod 23 to drive the two clamping plates 33 to slide away from the threaded rod 23 along the sliding rod 34, so that the clamping plates 33 contact the threaded rod 23 and clamp the threaded rod 23 to fix the threaded rod 23.

[0031] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An ICP spectrometer torch tube lifting device, characterized in that: It includes a box body (10). A square opening is formed in the box body (10). An installation frame (11) is arranged in the square opening. Two chutes (12) with opposite slots are vertically formed in the installation frame (11). A mounting plate (20) is slidably arranged in common in the two chutes (12). A fixing seat (21) for fixing a quartz torch tube is arranged on the front side plate surface of the mounting plate (20). A mounting block (22) is arranged on the inner side plate surface of the mounting plate (20). A threaded rod (23) is vertically rotatably arranged on the mounting block (22). The upper end of the threaded rod (23) passes through the top of the box body (10) and extends outside the box body (10). A fixing block (24) is arranged on the inner wall of the box body (10) above the installation frame (11). The fixing block (24) is in screw fit with the threaded rod (23) through a threaded hole. A fixing component (30) for fixing the threaded rod (23) is arranged on the top of the box body (10).

2. The ICP spectrometer torch tube lifting device according to claim 1, characterized in that: A fixing plate (25) is arranged on the front side plate surface of the mounting plate (20). The front side plate surface of the fixing plate (25) is coplanar with the front side surface of the installation frame (11).

3. The ICP spectrometer torch tube lifting device according to claim 2, characterized in that: Two first through holes (201) arranged horizontally at intervals are formed on the lower side plate surface of the mounting plate (20). A first round hole (251) corresponding to the first through hole (201) is formed in the fixing plate (25). A first pressing plate (26) is arranged on the rear side plate surface of the mounting plate (20). A first through hole (27) corresponding to the first through hole (201) is arranged on the first pressing plate (26). A first screw hole is formed in the fixing seat (21) corresponding to the first through hole (201). A screw passes through the first through hole (27), the first through hole (201), the first round hole (251) and is screwed into the first screw hole to fix the fixing seat (21).

4. An ICP spectrometer torch tube lifting device according to claim 1, characterized in that: Two second through holes (202) arranged horizontally at intervals are formed on the upper side plate surface of the mounting plate (20). A second pressing plate (28) is arranged on the front side plate surface of the mounting plate (20). A second through hole (29) corresponding to the through hole is arranged on the second pressing plate (28). A second screw hole is formed in the mounting block (22) corresponding to the second through hole (202). A screw passes through the second through hole (29), the second through hole (202) and is screwed into the second screw hole to fix the mounting block (22).

5. The ICP spectrometer torch tube lifting device according to claim 1, characterized in that: The fixing component (30) includes two vertical plates (31) arranged at intervals on the top of the box body (10). A bidirectional screw rod (32) is rotatably arranged between the two vertical plates (31). The rod core of the bidirectional screw rod (32) is on a horizontal plane and perpendicular to the length direction of the threaded rod (23). Clamping plates (33) are respectively arranged on both sides of the bidirectional screw rod (32) in a screw-rotating manner. A sliding rod (34) is arranged between the two vertical plates (31). The sliding rod (34) is parallel to the bidirectional screw rod (32). The two clamping plates (33) are respectively matched with the sliding rod (34) through guide holes.

6. The ICP spectrometer torch tube lifting device according to claim 5, wherein: Arc-shaped grooves (35) are formed on the opposite plate surfaces of the clamping plates (33).

Images