Rotatable sample holder device for infrared spectrometer

Abstract

The utility model relates to the technical field of infrared spectrometers, and discloses a rotatable sample holder device for an infrared spectrometer, which solves the problem that the angle of a sample holder is inconvenient to stably and accurately adjust at present, and comprises an infrared spectrometer machine body, a detection cavity is formed in the infrared spectrometer machine body, a rotating mechanism is arranged in the detection cavity, and the rotating mechanism is connected with the infrared spectrometer machine body. The rotating mechanism comprises a mounting disc located in the detection cavity, a sample frame is placed at the top of the mounting disc, two positioning blocks are symmetrically and fixedly connected to the bottom of the sample frame, two positioning grooves are symmetrically formed in the mounting disc, the two positioning blocks are inserted into the two positioning grooves respectively, two round rods are symmetrically and fixedly connected to the bottom of the mounting disc, and the round rods are inserted into the two positioning grooves respectively. The outer sides of the two round rods are movably sleeved with limiting plates; according to the utility model, through the cooperation of the driving shaft, the driving motor, the round rod, the supporting column, the ball and the supporting ring, the mounting disc can conveniently drive the sample rack to stably rotate, so that the angle of the sample rack can be conveniently and accurately adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of infrared spectrometers, in particular to a rotatable sample holder device for an infrared spectrometer. Background Art

[0002] The infrared spectrometer sample holder is a supporting device installed in the detection optical path system of the infrared spectrometer. It is mainly used to stably place and fix various samples to be tested, ensure that the samples are in the irradiation path of the infrared light beam, and enable the infrared light to fully interact with the samples, thereby providing basic support for the instrument to obtain accurate and stable spectral data.

[0003] In the existing technology, most sample holders of this type are driven by a motor directly driving the rotating shaft to rotate the sample holder. However, this single motor drive method lacks effective auxiliary support. During the operation of the motor, factors such as vibration and load changes may easily cause unstable rotation of the sample holder. This will not only cause shaking and deviation of the spectral detection signal, but also make it difficult to accurately control and position the rotation angle of the sample holder, thereby affecting the accuracy and repeatability of the sample detection data, making it difficult to meet the requirements of high-precision infrared spectroscopy analysis. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a rotatable sample holder device for an infrared spectrometer, which effectively solves the current problem of inconvenience in stably and accurately adjusting the angle of the sample holder.

[0005] To achieve the above object, the present invention provides the following technical solution: a rotatable sample holder device for an infrared spectrometer, comprising an infrared spectrometer body, a detection cavity being provided on the infrared spectrometer body, and a rotating mechanism being provided in the detection cavity;

[0006] The top end face of the lifting block is fixedly mounted on the lifting plate, and the bottom end face of the lifting block is fixedly mounted on the lifting plate, and the lifting block is installed in a fixed manner.

[0007] Preferably, the outer side of the round rod is movably connected to a nut, the outer side of the nut is rotatably connected to a movable rod, the top of the movable rod is rotatably connected to the bottom of the limit plate, the bottom of the mounting plate is symmetrically rotatably connected to two screw rods, the bottom ends of the two screw rods are fixedly connected to a handwheel, and the two nuts are respectively threadedly connected to the outer sides of the two screw rods.

[0008] Preferably, two ventilation pipes are symmetrically fixedly connected to the outside of the infrared spectrometer body, and the two ventilation pipes are connected to the mounting groove. The ends of the two ventilation pipes away from each other are provided with inner rings, and filters are fixedly connected to the two inner rings. The side of the inner ring close to the infrared spectrometer body is fixedly connected to a screw barrel, and the outside of the ventilation pipe is provided with an external thread, and the screw barrel is threaded onto the outside of the ventilation pipe through the external thread.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. The sample holder can be fixed on the top of the mounting plate through the coordination between the positioning block, positioning slot, handwheel, screw, nut, round rod, movable rod, limit plate and side rod. The coordination between the drive shaft, drive motor, round rod, support, ball bearing and support ring facilitates the mounting plate to drive the sample holder to rotate stably, thereby facilitating the precise adjustment of the angle of the sample holder.

[0011] 2. Through the coordination between the ventilation pipe, external thread, screw barrel, inner ring and filter screen, ventilation and heat dissipation of the drive motor can be achieved, while dust can be prevented from entering the installation slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0013] In the attached figure:

[0014] Figure 1 This is a schematic structural diagram of a rotatable sample holder device for an infrared spectrometer of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the rotating mechanism of the utility model;

[0016] Figure 3 This is a schematic diagram of the round rod structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the screw barrel structure of the present utility model.

[0018] In the figure: 1. Infrared spectrometer body; 2. Rotating mechanism; 201. Mounting plate; 202. Pillar; 203. Ball bearing; 204. Drive motor; 205. Drive shaft; 206. Support ring; 207. Round rod; 208. Positioning groove; 209. Sample rack; 2010. Limit plate; 2011. Side rod; 2012. Positioning block; 2013. Movable rod; 2014. Nut; 2015. Handwheel; 2016. Screw; 3. Maintenance door; 4. Screw barrel; 5. Detection chamber; 6. Inner ring; 7. Filter; 8. External thread; 9. Ventilation pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Embodiment 1, by Figure 1 The utility model relates to a rotatable sample holder device for an infrared spectrometer, comprising an infrared spectrometer body 1 , a detection cavity 5 is provided on the infrared spectrometer body 1 , and a rotating mechanism 2 is provided in the detection cavity 5 .

[0021] Specifically, by Figure 2-3The rotating mechanism 2 includes a mounting plate 201 located in the detection chamber 5, a sample rack 209 is placed on the top of the mounting plate 201, and two positioning blocks 2012 are symmetrically fixedly connected to the bottom of the sample rack 209. Two positioning grooves 208 are symmetrically provided on the mounting plate 201, and the two positioning blocks 2012 are respectively inserted into the two positioning grooves 208. Two round rods 207 are symmetrically fixedly connected to the bottom of the mounting plate 201, and the outer sides of the two round rods 207 are movably sleeved with limit plates 2010. The two limit plates 2010 are symmetrically sleeved with the sample rack 209. The positioning plate 2010 is respectively connected to the two positioning grooves 208 for sliding. The two positioning blocks 2012 are fixedly connected to the side rods 2011 on the sides away from each other. The two limiting plates 2010 are sleeved in the two side rods 2011 and abut against the two positioning blocks 2012 during the sliding process, thereby limiting the position of the sample rack 209. The limiting plates 2010 can also slide on the round rod 207 by other means such as manual or electric push rods. The bottom of the tray 201 is fixedly connected to the drive shaft 205. The drive shaft 205 is fixedly connected to the bottom of the tray 201. The bottom end of 05 is fixedly connected with a drive motor 204, and a mounting slot is provided on the infrared spectrometer body 1. The drive motor 204 is fixed in the mounting slot. A maintenance door 3 is hinged on the mounting slot. By setting the maintenance door 3, the drive motor 204 in the mounting slot can be inspected and maintained. The outer side of the round rod 207 is movably sleeved with a nut 2014, and the outer side of the nut 2014 is rotatably connected to a movable rod 2013. The top of the movable rod 2013 is rotatably connected to the bottom of the limit plate 210. The mounting plate The bottom of 201 is symmetrically connected to two screw rods 2016 for rotation. The bottom ends of the two screw rods 2016 are fixedly connected to a handwheel 2015. Two screw nuts 2014 are respectively threadedly sleeved on the outside of the two screw rods 2016. The bottom of the mounting plate 201 is symmetrically fixedly connected to two pillars 202. The bottom ends of the two pillars 202 and the bottom ends of the two round rods 207 are provided with balls 203. A support ring 206 is fixedly installed in the detection cavity 5, and each ball 203 abuts against the top of the support ring 206.

[0022] When the sample rack 209 is in use, the two positioning blocks 2012 are respectively inserted into the two positioning grooves 208, and then the two hand wheels 2015 are turned to drive the two screw rods 2016 to rotate, and drive the two screw nuts 2014 to slide upward along the two round rods 207 respectively, and then the two movable rods 2013 are used to drive the two limit plates 2010 to slide along the two round rods 207 respectively, so that the two limit plates 2010 are respectively sleeved on the outside of the two side rods 2011 until the two limit plates 2010 are respectively in contact with the two positioning blocks 2012, so that the sample rack 209 is installed and fixed. Then the driving motor 204 is started to drive the driving shaft 205 to rotate and drive the mounting plate 201 to rotate. At the same time, each ball 203 rolls on the top of the support ring 206 to ensure the stability of the mounting plate 201 during rotation, and finally the precise adjustment of the angle of the sample rack 209 is achieved.

[0023] Specifically, by Figure 4 Two ventilation pipes 9 are symmetrically fixedly connected to the outside of the infrared spectrometer body 1. The two ventilation pipes 9 are connected to the mounting groove. The ends of the two ventilation pipes 9 away from each other are provided with an inner ring 6. The two inner rings 6 are fixedly connected with a filter 7. The inner ring 6 is fixedly connected to the side of the infrared spectrometer body 1 with a screw barrel 4. The inner ring 6 and the screw barrel 4 are integrated. The outer side of the ventilation pipe 9 is provided with an external thread 8. The screw barrel 4 is threadedly connected to the outer side of the ventilation pipe 9 through the external thread 8.

[0024] When in use, ventilation pipes 9 connected to the mounting slot are fixed on both sides of the infrared spectrometer body 1 to realize air exchange between the inside of the mounting slot and the outside, which is convenient for heat dissipation of the drive motor 204. At the same time, the filter 7 can be fixed to one end of the ventilation pipe 9 through the cooperation between the external thread 8 and the screw barrel 4 to prevent dust from entering the mounting slot.

Claims

1. A rotatable sample holder device for an infrared spectrometer, comprising an infrared spectrometer body (1), characterized in that: The infrared spectrometer body (1) is provided with a detection cavity (5), and a rotating mechanism (2) is provided in the detection cavity (5); The rotating mechanism (2) includes a mounting plate (201) located in the detection chamber (5), a sample rack (209) is placed on the top of the mounting plate (201), two positioning blocks (2012) are symmetrically fixedly connected to the bottom of the sample rack (209), two positioning grooves (208) are symmetrically provided on the mounting plate (201), the two positioning blocks (2012) are respectively inserted into the two positioning grooves (208), two round rods (207) are symmetrically fixedly connected to the bottom of the mounting plate (201), the outer sides of the two round rods (207) are movably sleeved with limit plates (210), the two limit plates (210) are respectively slidably connected to the two positioning grooves (208), the two positioning blocks (212) are fixedly connected to the sides away from each other with side rods (211), the two limit plates (2010) During the sliding process, the sample rack (209) is limited by being sleeved in the two side rods (2011) and abutting against the two positioning blocks (2012). The bottom of the mounting plate (201) is fixedly connected to a driving shaft (205), and the bottom end of the driving shaft (205) is fixedly connected to a driving motor (204). A mounting groove is provided on the infrared spectrometer body (1), and the driving motor (204) is fixed in the mounting groove. A maintenance door (3) is hinged on the mounting groove. The bottom of the mounting plate (201) is symmetrically fixedly connected to two pillars (202), and the bottom ends of the two pillars (202) and the bottom ends of the two round rods (207) are provided with balls (203). A support ring (206) is fixedly installed in the detection cavity (5), and each ball (203) abuts against the top of the support ring (206).

2. The rotatable sample holder device for an infrared spectrometer according to claim 1, characterized in that: The outer side of the round rod (207) is movably sleeved with a nut (214), the outer side of the nut (214) is rotatably connected to a movable rod (213), the top end of the movable rod (2013) is rotatably connected to the bottom of the limit plate (210), the bottom of the mounting plate (201) is symmetrically rotatably connected to two screw rods (216), the bottom ends of the two screw rods (2016) are fixedly connected to a handwheel (215), and the two screw nuts (2014) are respectively threadedly sleeved on the outer sides of the two screw rods (2016).

3. The rotatable sample holder device for an infrared spectrometer according to claim 1, characterized in that: Two ventilation pipes (9) are symmetrically fixedly connected to the outer side of the infrared spectrometer body (1), and the two ventilation pipes (9) are both connected to the mounting groove. The ends of the two ventilation pipes (9) away from each other are provided with inner rings (6), and the two inner rings (6) are fixedly connected with filter screens (7). The inner ring (6) is fixedly connected to the side of the infrared spectrometer body (1) with a screw barrel (4). The outer side of the ventilation pipe (9) is provided with an external thread (8), and the screw barrel (4) is threadedly sleeved on the outer side of the ventilation pipe (9) through the external thread (8).

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