A sample fixture that is easy to position and replace

Abstract

The utility model provides a sample fixture that is easy to position and replace, and is composed of a sample rack, a sample rack cover, a sample rack mounting base, and a positioning piece. The positioning piece is located between the sample rack and the sample rack cover, and the sample rack and the sample rack cover are threadedly connected through threaded holes. When the utility model is used, the positioning pin on the positioning piece is used to replace the sample to determine the position, and then the sample is placed, which reduces the situation of inadequate light alignment and sample bump damage caused by human factors during the experiment, reduces the risk of the experiment, and improves the convenience of the experiment.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental equipment, in particular to a sample clamp which is convenient for positioning and replacement. Background Art

[0002] When conducting optical experiments, in order to ensure the stability and reliability of the optical experiments, the samples used need to be fixed, and the alignment of the samples in the experimental light path must be ensured. In the actual experimental process, the fixed position of the sample usually needs to be changed and adjusted many times before it can be roughly determined. In this process, the sample is easily affected by human factors, resulting in inadequate light alignment and damage due to bumps, which brings many inconveniences to the experiment, increases the risk of the experiment, and slows down the progress of the experiment. Utility Model Content

[0003] In view of this problem encountered in the experiment, the utility model provides a sample clamp which is easy to position and replace. Before clamping the sample, the clamp first confirms the position through radiation, and then fixes the sample at the corresponding position of the clamp, thus completing the fixation and alignment of the sample in one step, reducing the possibility of sample damage caused by human factors during the experiment, improving the convenience of the experiment, and speeding up the progress of the experiment.

[0004] The technical solution of this utility model is as follows:

[0005] A sample fixture that is easy to position and replace includes a sample rack, a sample rack cover, a sample rack mounting base and a positioning piece. The sample rack and the sample rack cover are threadedly connected through two holes; the sample rack and the sample rack mounting base are threadedly connected through two holes; the positioning piece is located between the sample rack and the sample rack cover.

[0006] In some preferred embodiments, the sample rack has two threaded holes at the bottom for connecting with the sample rack mounting base, a hole at the top center for placing samples, and two threaded through holes at the upper end for connecting with the sample rack cover. The upper end of the sample rack matches the shape of the sample rack cover; the sample rack has a slender platform and a raised limit plate at the connection side with the sample rack cover for limiting the position of the probe film.

[0007] In some preferred embodiments, the sample rack cover is made of rubber, and has two through holes at both ends thereof, the positions of which correspond to the two through holes at the upper end of the sample rack.

[0008] In some preferred embodiments, a hole for threaded connection with the sample rack is punched in the middle of the sample rack mounting base; a through hole is punched in each of the four corners and the middle of the edge to facilitate connection with other supporting planes or the plane of the moving mechanism, and the holes can also be customized according to other supporting planes or the plane of the moving mechanism.

[0009] In some preferred embodiments, the positioning piece is an opaque thin sheet, which is shaped like a rectangular plane with a slender rectangular surface with a width corresponding to the diameter of the ray spot protruding from the long side, and an arc-shaped plane. After the positioning piece is installed, the position of the slender rectangle on it corresponds to the position of the center hole on the top of the sample holder. After the positioning piece is pulled out for light, the sample can be inserted into the original position of the positioning piece.

[0010] The benefits of the utility model are:

[0011] The connection between the sample rack and the sample rack cover plate and between the sample rack and the sample rack mounting base is a threaded connection, and the overall structure is stable. The sample rack cover plate is made of rubber, which plays a certain buffering role when the sample is clamped, and can play a certain protective role on the sample. The positioning piece is limited by the slender platform and the limit plate of the sample rack, and the position is fixed. When in use, the slender rectangle of the positioning piece is used for light alignment to determine the position of the sample clamp. After the position is determined, the arc-shaped plane of the positioning piece can be pinched with fingers to pull out the positioning piece, and then the sample is placed in the corresponding position to complete the fixation of the sample position. When multiple different samples are used in an experiment, there is no need to reposition them, and the sample can be directly installed in the corresponding position. On the whole, the utility model reduces the influence of human factors on the experiment, reduces the risk of the experiment, and improves the efficiency of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the exploration film.

[0013] Figure 2 Schematic diagram of the sample holder.

[0014] Figure 3 This is a schematic diagram of inserting the probe piece after the fixture is assembled.

[0015] In the figure: 1-sample rack, 2-sample rack cover, 3-sample rack mounting base, 4-positioning plate, 101-fastening hole, 102-sample carrier, 103-connecting hole, 104-limiting plate, 105-slender platform, 401-positioning pin, 402-gripping part. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the method of using a sample fixture that is easy to position and replace. The described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the utility model.

[0017] like Figure 3As shown, the utility model is composed of a sample rack 1, a sample rack cover plate 2, a sample rack mounting base 3 and a positioning plate 4. The two threaded holes at the bottom of the sample rack 1 are threadedly connected to the corresponding holes reserved on the sample rack mounting base 3 as fastening holes 101, and the two threaded holes at the upper end of the sample rack 1 are threadedly connected to the through holes at both ends of the sample rack cover plate 2 as connecting holes 103. The positioning plate 4 is located between the sample rack 1 and the sample rack cover plate 2, and is placed on a slender platform 105 in the middle of the upper end of the sample rack 1. The side of the positioning plate contacts the limiting plate 104 of the sample rack 1. After the position of the positioning plate 4 is fixed, the positioning pin 401 on the positioning plate 4 corresponds to the position of the sample carrier 102 at the top of the sample rack 1, and the positioning pin 401 is parallel to the central axis of the sample carrier 102. There are three right-angle edges at the upper end of the sample rack 1 and the sample rack mounting base 3 where the parts are assembled, and the three places are rounded to avoid air, which reduces the processing and assembly time of parts.

[0018] During the experiment, the positioning piece 4 is first placed on the slender platform 105 of the sample rack 1 and in contact with the limiting plate 104, the positioning piece 4 is covered with the sample rack cover plate 2, and the through holes at both ends of the sample rack cover plate 2 and the connecting hole 103 of the sample rack 1 are screwed to fix it, and then the position and angle of the sample fixture are adjusted so that the ray spot falls vertically on the positioning pin 401. After the position is determined, the sample rack mounting base 3 is fixed on the sample platform through the through holes on the four corners of the base. The positioning piece 4 is pulled out through the gripping portion 402 of the positioning piece 4, and then the sample is placed on the sample carrier 102, and subsequent experiments can be carried out. The contact with the sample during the experiment is reduced, and the situation of the sample not being in place for light and being damaged by bumps caused by human factors during the experiment is reduced. During the experiment, if the sample needs to be replaced, there is no need to reposition it. The new sample can be replaced on the sample carrier 102 to continue the experiment. The efficiency of the experiment is improved. Different moving mechanisms, such as a translation stage, a lifting stage, an angle stage, a rotating stage, etc., can be installed under the sample holder mounting base 3 to better control the position of the sample holder 1 and facilitate positioning.

[0019] Finally, it should be noted that the above is only a preferred implementation of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions under the concept of the utility model are within the protection scope of the utility model. For ordinary technicians in this technical field, it is easy to modify the technical solutions of the above embodiments without departing from the principle of the utility model, or to replace some of the technical features therein with equivalents, and these modifications and replacements should be included in the content of the utility model.

Claims

1. A sample fixture that is easy to position and replace, characterized in that: It includes a sample rack, a sample rack cover, a sample rack mounting base and a positioning piece; the sample rack and the sample rack cover are threadedly connected through two holes; the sample rack and the sample rack mounting base are threadedly connected through two holes; the positioning piece is located between the sample rack and the sample rack cover.

2. A sample fixture that is easy to position and replace according to claim 1, characterized in that: The sample rack has two threaded holes at the bottom for connecting to the sample rack mounting base, a hole at the top center for placing the sample, and two threaded through holes at the upper end for connecting to the sample rack cover. The shape of the upper end of the sample rack matches the shape of the sample rack cover, and there is a slender platform and a raised limiting plate on the connecting side of the sample rack and the sample rack cover for limiting the position of the positioning piece.

3. A sample fixture that is easy to position and replace according to claim 1, characterized in that: The sample rack cover is made of rubber, and has two through holes at both ends, the positions of which correspond to the two through holes at the upper end of the sample rack.

4. A sample fixture that is easy to position and replace according to claim 1, characterized in that: The middle part of the sample rack installation base is provided with a hole for threaded connection with the sample rack; and a through hole is respectively provided at the four corners and the middle of the edge.

5. The sample fixture that is easy to position and replace according to claim 1, characterized in that: The position detection sheet is an opaque sheet, which is shaped like a rectangular plane with a slender rectangle protruding from the long end with a width adapted to the diameter of the ray spot, and an arc-shaped plane. After the position detection sheet is installed, the position of the slender rectangle on it corresponds to the position of the center hole on the top of the sample rack.

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