An auxiliary sample holder for a chromatographic analyzer

Abstract

This utility model discloses an auxiliary sample holder for a chromatographic analyzer, belonging to the field of sample holder technology. It includes a support frame, with a first tray fixedly installed at the inner top and a support plate fixedly connected to the inner bottom. A second tray is slidably inserted into the corresponding support frame between the first tray and the support plate. A clamping rod is fixedly connected to the back of an adjusting clamp, and a clamping block is fixedly connected to the end of the clamping rod. The clamping block slides through a corresponding placement hole. An adjusting screw is threaded through one end of the adjusting clamp. This utility model not only facilitates the adaptation of sample tubes of different heights and sizes but also facilitates the clamping and positioning of sample tubes of different diameters. It enables simultaneous and rapid clamping and releasing of multiple sample tubes, saving time and effort in operation, providing flexibility, and effectively avoiding sample tube shaking, wear, and leakage, thus improving the efficiency of the sample holder.

Description

Technical Field

[0001] This utility model belongs to the field of sample holder technology, and in particular relates to an auxiliary sample holder for a chromatographic analyzer. Background Technology

[0002] Chromatographic analysis is a commonly used analytical technique in analytical chemistry, frequently employed in the separation and detection of mixtures in testing and inspection. The principle of chromatographic analysis utilizes the selective partitioning of different substances in different phases. A mobile phase elutes the mixture in a stationary phase, causing different substances to move along the stationary phase at different speeds, ultimately achieving separation. To improve the effectiveness of chromatographic analysis, samples need to be prepared at appropriate concentrations. Excessive concentration hinders effective separation, while insufficient concentration leads to inaccurate results. Therefore, in routine analytical testing, samples need to be prepared at different concentrations for convenient detection. However, prepared samples require sample racks for storage; currently available sample racks are limited in size and cannot accommodate sample tubes of varying lengths.

[0003] To address this, Chinese Patent CN217278101U discloses a sample rack for a chromatographic analyzer, comprising two corresponding upright plates. The tops of the upright plates are connected by an upper bracket, which has several insertion holes. The surfaces of the two corresponding upright plates are provided with mounting grooves. A support frame is installed between the upright plates below the upper bracket. Each end of the support frame has a locking block that is movably installed in the mounting groove. A damping rod is installed on the lower surface of the locking block. The support frame has a limiting groove corresponding to the insertion holes. The sample rack can accommodate sample tubes of different lengths. At the same time, the connecting plate of the sample rack has a liquid storage tank to prevent liquid spilled from the sample rack from dripping onto the experimental table or instrument, making the sample rack more convenient and safer to use.

[0004] However, in the above-mentioned device, the sample tube is placed directly in the socket, which is not conducive to clamping and positioning the sample tube. If it is accidentally touched or the sample holder is moved, it is easy to cause the sample tube to shake or vibrate, which can lead to wear or even leakage of the sample tube, making it inconvenient to use. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides an auxiliary sample holder for a chromatographic analyzer. It not only easily accommodates sample tubes of different heights and sizes but also facilitates clamping and positioning of sample tubes of different diameters. It allows for the simultaneous and rapid clamping and releasing of multiple sample tubes, saving time and effort, and offering flexible use. It effectively avoids sample tube shaking, wear, and leakage, thus improving the efficiency of the sample holder. This solves the problems of existing technologies where sample tubes are directly placed in the insertion holes, making clamping and positioning difficult. Accidental contact or movement of the sample holder can easily cause shaking and vibration of the sample tubes, leading to wear and even leakage, resulting in inconvenience.

[0006] This invention is implemented as follows: an auxiliary sample holder for a chromatographic analyzer includes a support frame. A first tray is fixedly installed on the inner top of the support frame, and a support plate is fixedly connected to the inner bottom of the support frame. A second tray is slidably inserted into the corresponding support frame between the first tray and the support plate. The first tray has evenly distributed placement holes, and the top of the first tray has evenly distributed guide grooves. The guide grooves and placement holes are staggered. An adjusting clamp is slidably connected to the guide groove. A clamping rod is fixedly connected to the back of the adjusting clamp, and a clamping block is fixedly connected to the end of the clamping rod. The clamping block slides through into the corresponding placement hole. An adjusting screw is threaded through one end of the adjusting clamp.

[0007] In a preferred embodiment of this utility model, a guide hole is provided through the placement hole and the guide groove, the guide hole is matched and connected with the clamping rod, a sliding hole is provided at one end of the guide groove, one end of the adjusting clamping plate passes through the sliding hole, and the adjusting clamping plate moves along the guide groove and the sliding hole.

[0008] This design allows the adjusting clamp to slide through the sliding hole and guide groove, improving the stability of the adjusting clamp during movement and providing precise guidance in its direction of movement. This facilitates the synchronous movement of the clamping block via the clamping rod, making it easy to adjust the clamping range of the clamping block according to the diameter of the sample tube. It is suitable for sample tubes of different specifications, making it flexible and widely applicable.

[0009] As a preferred embodiment of this utility model, the left side wall of the support frame is provided with a clearance channel, one end of the adjusting clamp is inserted into the clearance channel, a support block is fixedly connected to the support frame corresponding to the rear end of the clearance channel, the adjusting screw is connected to the support block through a bearing sleeve, and a handle is fixedly connected to the rear end of the adjusting screw.

[0010] This design facilitates the stable installation of the adjusting screw. Rotating the handle drives the adjusting screw to turn, and the threaded engagement between the adjusting screw and the adjusting clamp plate causes the clamping blocks to move synchronously. This allows for the simultaneous and rapid clamping and loosening of multiple sample tubes, saving time and effort. It also facilitates the stable clamping of sample tubes of different diameters, avoiding shaking and wear in the placement holes, and effectively improving the efficiency of the sample holder. The clearance channel provides movement space for the adjusting clamp plate, preventing interference with the support frame.

[0011] In a preferred embodiment of this invention, each of the placement holes is fixedly connected to a sponge pad, and each of the clamping blocks is fixedly connected to a rubber pad, with the rubber pad and the sponge pad being arranged in a one-to-one correspondence.

[0012] With this design, both the sponge pad and the rubber pad are made of elastic materials, which can form a flexible protection for the sample tube in the placement hole, reduce the hard contact between the sample tube and the device, effectively buffer the vibration during movement or accidental collision, prevent the sample tube from being worn due to friction, and enhance the protective effect.

[0013] As a preferred embodiment of this utility model, the inner walls of both sides of the support frame are provided with evenly distributed slots, the two sides of the second tray are slidably inserted into the corresponding slots, and the second tray is provided with evenly distributed grooves, with each groove and placement hole corresponding to the other.

[0014] This design facilitates support of the bottom of the sample tube, further enhancing its stability and preventing shaking and wear. Furthermore, by inserting the second tray into different slots, its height can be adjusted to accommodate sample tubes of varying heights, making it flexible in use.

[0015] As a preferred embodiment of this invention, the second tray has evenly distributed leakage holes.

[0016] This design allows the liquid to drip quickly down through the leakage hole if the sample tube leaks, preventing it from accumulating on the second tray and ensuring the cleanliness of the device's interior.

[0017] As a preferred embodiment of this invention, a liquid collection box is placed on the top of the support plate.

[0018] This design allows the collection box to catch liquid dripping from the leak hole, facilitating centralized treatment and preventing leakage from contaminating the workbench or equipment. It is also convenient to use.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the cooperation of the first support plate, placement hole, sponge pad, guide groove, sliding hole, second support plate, support groove, adjusting clamp, clamping block, rubber pad and adjusting screw, it is not only easy to adapt to sample tubes of different heights and sizes, but also easy to clamp and position sample tubes of different diameters. It can realize the simultaneous and rapid clamping and loosening of multiple sample tubes, saving time and effort in operation, and is flexible and widely applicable. It effectively avoids the shaking and wear of sample tubes and leakage, and effectively improves the efficiency of sample rack use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the top structure provided in an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the first pallet structure provided in this embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the adjusting clamp structure provided in an embodiment of the present invention.

[0024] In the diagram: 1. Support frame; 101. Support plate; 102. Slot; 103. Clearance channel; 104. Support block; 2. First tray; 201. Placement hole; 202. Guide hole; 203. Guide groove; 204. Sliding hole; 205. Sponge pad; 3. Second tray; 301. Tray; 302. Leakage hole; 4. Collection box; 5. Adjusting clamp; 501. Clamping rod; 502. Clamping block; 503. Rubber pad; 6. Adjusting screw; 601. Handle. Detailed Implementation

[0025] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0026] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] refer to Figures 1 to 4As shown in the figure, an auxiliary sample holder for a chromatographic analyzer provided by this utility model includes a support frame 1. A first tray 2 is fixedly installed on the inner top of the support frame 1, and a support plate 101 is fixedly connected to the inner bottom of the support frame 1. A second tray 3 is slidably inserted into the support frame 1 between the first tray 2 and the support plate 101. The first tray 2 is provided with uniformly distributed placement holes 201. The top of the first tray 2 is provided with uniformly distributed guide grooves 203. The guide grooves 203 and the placement holes 201 are staggered. An adjusting clamp 5 is slidably connected to the guide groove 203. A clamping rod 501 is fixedly connected to the back of the adjusting clamp 5. A clamping block 502 is fixedly connected to the end of the clamping rod 501. The clamping block 502 slides through into the corresponding placement hole 201. An adjusting screw 6 is threaded through one end of the adjusting clamp 5.

[0028] Specifically, a guide hole 202 is provided between the placement hole 201 and the guide groove 203. The guide hole 202 is matched and connected with the clamping rod 501. A sliding hole 204 is provided at one end of the guide groove 203. One end of the adjusting clamping plate 5 passes through the sliding hole 204. The adjusting clamping plate 5 moves along the guide groove 203 and the sliding hole 204.

[0029] By adopting the above scheme, the adjusting clamp 5 slides through the sliding hole 204 and the guide groove 203, which improves the stability of the adjusting clamp 5 when it moves and provides precise guidance for its movement direction. This makes it easy for the adjusting clamp 5 to drive the clamping block 502 to move synchronously through the clamping rod 501, thereby making it easy to adjust the clamping range of the clamping block 502 according to the diameter of the sample tube, adapting to sample tubes of different specifications, and making it flexible and widely applicable.

[0030] Specifically, a clearance channel 103 is provided on the left side wall of the support frame 1, one end of the adjusting clamp 5 is inserted into the clearance channel 103, a support block 104 is fixedly connected to the support frame 1 corresponding to the rear end of the clearance channel 103, the adjusting screw 6 is connected to the support block 104 through a bearing, and a handle 601 is fixedly connected to the rear end of the adjusting screw 6.

[0031] The above scheme facilitates the stable installation of the adjusting screw 6. By rotating the handle 601, the adjusting screw 6 is driven to rotate. The threaded engagement between the adjusting screw 6 and the adjusting clamp 5 can drive the clamping block 502 to move synchronously, realizing the simultaneous and rapid clamping and loosening of multiple sample tubes. The operation is time-saving and labor-saving, thus facilitating the stable clamping of sample tubes of different diameters and avoiding shaking and wear in the placement hole 201. This effectively improves the efficiency of the sample holder. The clearance channel 103 provides moving space for the adjusting clamp 5, avoiding interference with the support frame 1.

[0032] Specifically, each of the placement holes 201 has a sponge pad 205 fixedly connected to its hole wall, and each of the clamping blocks 502 has a rubber pad 503 fixedly connected to its end. The rubber pad 503 and the sponge pad 205 are arranged in a one-to-one correspondence.

[0033] Using the above solution, both the sponge pad 205 and the rubber pad 503 are elastic materials, which can form a flexible protection for the sample tube in the placement hole 201, reduce the hard contact between the sample tube and the device, effectively buffer the vibration during movement or accidental collision, prevent the sample tube from being worn due to friction, and enhance the protective effect.

[0034] Specifically, the inner walls of both sides of the support frame 1 are provided with evenly distributed slots 102, and the two sides of the second tray 3 are slidably inserted into the corresponding slots 102. The second tray 3 is provided with evenly distributed grooves 301, and the grooves 301 and the placement holes 201 are arranged in a one-to-one correspondence.

[0035] The above solution facilitates support of the bottom of the sample tube, further enhancing the stability of the sample tube and avoiding shaking and wear. Furthermore, by inserting the second support plate 3 into different slots 102, the height of the second support plate 3 can be adjusted, making it easy to adapt to sample tubes of different heights and providing flexibility in use.

[0036] Specifically, the second tray 3 has evenly distributed leakage holes 302.

[0037] Using the above solution, if the sample tube leaks, the liquid can quickly drip down through the leakage hole 302, avoiding accumulation on the second tray 3 and ensuring the cleanliness of the device interior.

[0038] Specifically, a liquid collection box 4 is placed on the top of the support plate 101.

[0039] Using the above solution, the liquid collection box 4 can collect the liquid dripping from the leakage hole 302, which is convenient for centralized treatment and avoids leakage from contaminating the workbench or equipment. It is also convenient to use.

[0040] The working principle of this utility model:

[0041] In use, according to the height of the sample tube, insert the second tray 3 into the slot 102 of the appropriate height, and then place the sample tubes into the corresponding placement holes 201 in the first tray 2. The tray 301 supports the bottom of the sample tube. Then, hold the handle 601 and turn the adjusting screw 6 to move the adjusting clamp 5 along the sliding hole 204 and the guide groove 203, which in turn moves the clamping rod 501 and the clamping block 502 to simultaneously clamp and position the sample tubes in each placement hole 201. This facilitates the clamping and positioning of sample tubes of different diameters, forming a stable clamping structure with the upper clamp and lower support for the sample tubes. The operation is time-saving and labor-saving, with a wide range of applications. It effectively avoids shaking and wear of the sample tubes and leakage, effectively improving the efficiency of the sample rack. In case of accidental leakage, the leakage can be collected through the leakage hole 302 and the collection box 4 to avoid contaminating the workbench and equipment. It is convenient to use.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary sample holder for a chromatographic analyzer comprising a support frame (1), characterized in that: The support frame (1) has a first support plate (2) fixedly installed on its inner top and a support plate (101) fixedly connected to its inner bottom. A second support plate (3) is slidably inserted into the support frame (1) between the first support plate (2) and the support plate (101). The first support plate (2) has evenly distributed placement holes (201). The top of the first support plate (2) has evenly distributed guide grooves (203). The guide grooves (203) and placement holes (201) are staggered. An adjusting clamp (5) is slidably connected to the guide groove (203). A clamping rod (501) is fixedly connected to the back of the adjusting clamp (5). A clamping block (502) is fixedly connected to the end of the clamping rod (501). The clamping block (502) slides through into the corresponding placement hole (201). An adjusting screw (6) is threaded through one end of the adjusting clamp (5).

2. An auxiliary sample holder for a chromatograph as defined in claim 1, characterized in that: A guide hole (202) is provided between the placement hole (201) and the guide groove (203). The guide hole (202) is matched and connected with the clamping rod (501). A sliding hole (204) is provided at one end of the guide groove (203). One end of the adjusting clamp (5) passes through the sliding hole (204). The adjusting clamp (5) moves along the guide groove (203) and the sliding hole (204).

3. An auxiliary sample holder for a chromatograph as defined in claim 1, characterized in that: The left side wall of the support frame (1) is provided with a clearance channel (103). One end of the adjusting clamp (5) is inserted into the clearance channel (103). A support block (104) is fixedly connected to the support frame (1) corresponding to the rear end of the clearance channel (103). The adjusting screw (6) is connected to the support block (104) through a bearing. A handle (601) is fixedly connected to the rear end of the adjusting screw (6).

4. An auxiliary sample holder for a chromatograph as defined in claim 1, characterized in that: The walls of the placement holes (201) are all fixedly connected with sponge pads (205), and the ends of the clamping blocks (502) are all fixedly connected with rubber pads (503). The rubber pads (503) and sponge pads (205) are arranged in a one-to-one correspondence.

5. An auxiliary sample holder for a chromatograph as defined in claim 1, characterized in that: The inner walls of both sides of the support frame (1) are provided with evenly distributed slots (102). The two sides of the second tray (3) are slidably inserted into the corresponding slots (102). The second tray (3) is provided with evenly distributed grooves (301). The grooves (301) and the placement holes (201) are arranged in a one-to-one correspondence.

6. An auxiliary sample holder for a chromatograph as defined in claim 1, characterized in that: The second tray (3) has evenly distributed leakage holes (302).

7. An auxiliary sample holder for a chromatograph as defined in claim 1, characterized in that: A liquid collection box (4) is placed on top of the support plate (101).

Images