Automatic cover taking device for ion chromatography sample injection pipe

Abstract

The utility model relates to the technical field of automatic cover taking devices for sample tubes, and discloses an automatic cover taking device for an ion chromatography sample injection tube, which comprises a fixed tube, the inner wall of the fixed tube is connected with an adjusting mechanism in a sliding manner, the adjusting mechanism is used for adjusting the length of the cover taking device, and the outer wall of the adjusting mechanism is provided with a cover taking mechanism. The cover taking mechanism is used for taking covers, the adjusting mechanism comprises a triangular plate, the bottom of the outer wall of the triangular plate is fixed to the top of a fixing pipe, the left side and the right side, close to the bottom, of the outer wall of the fixing pipe are both slidably connected with bolt shafts, and the inner wall of the triangular plate is slidably connected with a first sliding assembly. An elastic assembly is fixedly connected to the portion, close to the top, of the outer wall of the first sliding assembly, and a fixing assembly is arranged at the bottom of the inner wall of the first sliding assembly. According to the bottle taking device, the sliding shaft slides on the inner wall of the fixed tube, so that the height of the bottle taking device can be freely adjusted, the bottle taking device is suitable for sample tubes with different heights, and meanwhile, the operation is convenient, and rapid adjustment is facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic sample tube cap removal devices, and in particular to an automatic cap removal device for ion chromatography sample tubes. Background Technology

[0002] In modern scientific research and industrial analysis, ion chromatography technology, with its high sensitivity and high resolution for detecting ionic compounds, has become an indispensable analytical tool in water quality analysis, environmental monitoring, and food testing. Ion chromatographs provide crucial data support for quality control and component identification by separating and detecting ionic components in samples. As the starting step in ion chromatography analysis, the accuracy, efficiency, and purity of the sample injection process directly affect the accuracy and reliability of the entire detection process. Today, with the ever-increasing demands for precision and efficiency in ion chromatography analysis from scientific research, and driven by the trend of laboratory automation and intelligence, the development of an efficient, accurate, intelligent automatic capping device that can adapt to various sample tube specifications has become an urgent task. In the pharmaceutical industry, the detection of trace impurity ions in drugs requires extremely high accuracy; any sample contamination or injection error can affect drug quality assessment. In the field of environmental monitoring, facing massive water sample testing tasks, rapid and accurate sample injection is key to timely understanding of environmental conditions.

[0003] Currently, commercially available automatic sample tube capping devices mainly consist of a core actuator and a multi-functional capping head. As the starting and crucial step in ion chromatography analysis, the efficiency, accuracy, and strict assurance of sample purity in the sample injection process play a decisive role in the accuracy and reliability of the entire detection process. Traditionally, ion chromatography sample tube capping has relied primarily on manual operation by laboratory personnel. This manual operation mode has many undeniable drawbacks. From an efficiency perspective, manually opening each sample tube cap is extremely time-consuming and labor-intensive, especially when dealing with batch sample testing tasks. The problem of its low efficiency has become increasingly prominent. With the continuous progress and innovation of technology, in order to improve the predicament of manual cap removal, some simple automatic cap removal devices have appeared on the market in the early days. However, in the actual application process, these early devices have exposed a series of serious limitations. However, from the structural design of existing automatic cap removal devices, most products adopt a fixed-length mechanical arm or telescopic rod structure. The adjustment method is simple and the operation is cumbersome. Although some devices have the function of length adjustment, they rely on manual knobs or bolts for fastening. Each adjustment requires a lot of time to disassemble, adjust and reassemble, which seriously affects the experimental efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automatic cap removal device for ion chromatography injection tubes, which aims to improve the problem that traditional automatic cap removal devices in the prior art are not convenient for adjusting the length of the cap removal device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic cap removal device for ion chromatography injection tubes, comprising a fixed tube, wherein an adjustment mechanism is slidably connected to the inner wall of the fixed tube, the adjustment mechanism being used to adjust the length of the cap removal device, and a cap removal mechanism being provided on the outer wall of the adjustment mechanism, the cap removal mechanism being used to remove the cap.

[0006] The adjustment mechanism includes a triangular plate. The bottom of the outer wall of the triangular plate is fixed to the top of the fixed tube. The outer wall of the fixed tube is slidably connected to the left and right sides near the bottom. The inner wall of the triangular plate is slidably connected to a sliding component. The outer wall of the sliding component is fixedly connected to an elastic component near the top. The bottom of the inner wall of the sliding component is provided with a fixing component. The outer wall of the fixing component is fixedly connected to a locking component.

[0007] As a further description of the above technical solution:

[0008] The cap removal mechanism includes a fixed sleeve, the top of which is slidably connected to the bottom of the inner wall of the fixed tube. A threaded shaft is fixedly connected to the bottom of the first sliding component. A second sliding component is provided on the outer wall of the fixed tube near the bottom, and a connecting component is provided on the top of the second sliding component.

[0009] As a further description of the above technical solution:

[0010] The sliding component includes a pressing shaft, the outer wall of which slides on the inner wall of the triangular plate, and the top of the pressing shaft is fixedly connected to the sliding shaft.

[0011] As a further description of the above technical solution:

[0012] The elastic component includes a fixed circular plate, the inner wall of which is fixed to the outer wall of the pressing shaft near the top, and a spring is fixedly connected to the bottom of the outer wall of the fixed circular plate. The other end of the spring is fixed to the inner wall of the fixed tube near the top.

[0013] As a further description of the above technical solution:

[0014] The fixing component includes a fixing groove, which is formed on the outer wall of the pressing shaft near the bottom front and rear sides, and a spring is fixedly connected to the inner wall of the fixing groove.

[0015] As a further description of the above technical solution:

[0016] The engaging assembly includes an engaging shaft, the outer wall of which is fixed to the other end of the second spring. The outer wall of the sliding shaft is slidably connected to a sliding sleeve. The inner wall of the sliding sleeve has engaging grooves on both the front and rear sides. The outer walls of multiple engaging shafts engage with the corresponding engaging grooves.

[0017] As a further description of the above technical solution:

[0018] The second sliding component includes a sample tube bottle, which is disposed at the bottom of the outer wall of the fixed tube, and a sliding cap is slidably connected to the inner wall of the sample tube bottle.

[0019] As a further description of the above technical solution:

[0020] The connecting assembly includes a connecting block, the bottom of which is fixed to the top of the sliding cover. The inner wall of the connecting block has a threaded groove, and the outer wall of the threaded groove is in contact with the threaded shaft.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, a sliding shaft slides along the inner wall of the fixed tube, and a fixed circular plate is fixed near the top of the outer wall of the sliding shaft. By pressing the sliding shaft, the fixed groove fixed on the bottom inner wall of the sliding shaft can drive the second spring to retract inward, thereby freely adjusting the sliding sleeve. After the sliding sleeve is adjusted to a suitable height, the fixed circular plate can drive the sliding shaft to move upward under the elastic action of the first spring. At the same time, the locking shaft at the bottom of the pressing shaft can be locked in the inner wall of the locking groove under the elastic action of the second spring, thereby realizing the free adjustment of the height of the bottle-picking device to adapt to sample tubes of different heights. It is also convenient to operate and easy to adjust quickly.

[0023] 2. In this utility model, a threaded shaft is fixed at the bottom of the locking shaft. By rotating, the threaded shaft can be threadedly connected to the threaded groove on the inner wall of the connecting block. At the same time, by pulling the triangular plate, the fixed sleeve can drive the outer wall of the threaded shaft to slide the sliding cover in the inner wall of the sample tube bottle, thereby realizing the removal of the cover. At the same time, the sliding cover is squeezed and slid in the sample tube bottle after the threaded connection, which meets the requirement of placing it in a fixed position, thus meeting the usage requirements. Attached Figure Description

[0024] Figure 1 This is a perspective view of the front side of the fixed tube of an automatic cap removal device for ion chromatography injection tubes proposed in this utility model;

[0025] Figure 2 This is a structural diagram of the fixing sleeve of an automatic cap removal device for ion chromatography injection tubes proposed in this utility model;

[0026] Figure 3This is a partial structural diagram of the threaded shaft of an automatic cap removal device for ion chromatography injection tubes proposed in this utility model;

[0027] Figure 4 This is a diagram illustrating the triangular plate structure of an automatic cap removal device for ion chromatography injection tubes proposed in this utility model.

[0028] Figure 5 This is a schematic diagram of the sample tube structure of an automatic cap removal device for ion chromatography sample tubes proposed in this utility model.

[0029] Legend:

[0030] 1. Fixed tube; 2. Adjusting mechanism; 201. Triangular plate; 202. Pin shaft; 203. Sliding component one; 2031. Pressing shaft; 2032. Sliding shaft; 204. Elastic component; 2041. Fixed circular plate; 2042. Spring one; 205. Fixed component; 2051. Fixed groove; 2052. Spring two; 206. Engaging component; 2061. Engaging groove; 2062. Engaging shaft; 2063. Sliding sleeve; 3. Cap removal mechanism; 301. Fixed sleeve; 302. Threaded shaft; 303. Sliding component two; 3031. Sample tube bottle; 3032. Sliding cap; 304. Connecting component; 3041. Connecting block; 3042. Threaded groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 2 - Appendix Figure 4 An embodiment of this utility model is provided: an automatic cap removal device for ion chromatography injection tubes, including a fixed tube 1, an adjustment mechanism 2 slidably connected to the inner wall of the fixed tube 1, the adjustment mechanism 2 being used to adjust the length of the cap removal device, and a cap removal mechanism 3 being provided on the outer wall of the adjustment mechanism 2, the cap removal mechanism 3 being used to remove the cap.

[0033] The adjustment mechanism 2 includes a triangular plate 201. The bottom of the outer wall of the triangular plate 201 is fixed to the top of the fixed tube 1. The outer wall of the fixed tube 1 is slidably connected to the left and right sides near the bottom. The inner wall of the triangular plate 201 is slidably connected to a sliding component 203. The outer wall of the sliding component 203 is fixedly connected to an elastic component 204 near the top. On the inner wall of the triangular plate 201, a sliding component 203 is installed by a sliding connection. The outer wall of the sliding component 203 is fixedly connected to an elastic component 204 near the top. The elastic component 204 can provide necessary elastic support during the adjustment process. The bottom of the inner wall of the sliding component 203 is provided with a fixed component 205. The outer wall of the fixed component 205 is fixedly connected to a locking component 206.

[0034] Specifically, an adjustment mechanism 2 is installed on the inner wall of the fixed tube 1 via a sliding connection. The main function of the adjustment mechanism 2 is to adjust the overall length of the cap-removing device to accommodate caps of different sizes. On the outer wall of the adjustment mechanism 2, a cap-removing mechanism 3 is provided specifically for cap removal. This cap-removing mechanism 3 can effectively complete the cap removal operation. The specific structure of the adjustment mechanism 2 includes a triangular plate 201, the bottom of which is firmly fixed to the top of the fixed tube 1. In addition, on the left and right sides of the outer wall of the fixed tube 1 near the bottom, pin shafts 202 are installed via a sliding connection to facilitate the movement and fixation of the adjustment mechanism 2. A fixing component 205 is provided on the bottom of the inner wall of the sliding component 203. A locking component 206 is fixedly connected to the outer wall of the fixing component 205. The locking component 206 is used to engage with the cap-removing mechanism 3 to ensure the stability and reliability of the cap removal operation.

[0035] Please see the appendix Figure 3 - Appendix Figure 5 The cap removal mechanism 3 includes a fixed sleeve 301, the top of which is slidably connected to the bottom of the inner wall of the fixed tube 1. The bottom of the sliding component 1 203 is fixedly connected to a threaded shaft 302. The outer wall of the fixed tube 1 is provided with a sliding component 2 303 near the bottom. The outer wall of the fixed tube 1 is provided with a sliding component 2 303 in the area near the bottom. The sliding component 2 303 can slide flexibly on the outer wall of the fixed tube 1 to adapt to different working requirements. The top of the sliding component 2 303 is provided with a connecting component 304.

[0036] Specifically, the cap-removing mechanism 3 includes a fixed sleeve 301. The top of the fixed sleeve 301 is installed at the bottom of the inner wall of the fixed tube 1 by a sliding connection to ensure that it can move smoothly up and down in the vertical direction. In addition, the bottom of the sliding component 203 is firmly connected to a threaded shaft 302 to achieve precise adjustment and stable operation of the mechanism. The top of the sliding component 203 is also provided with a connecting component 304 to ensure the coordinated cooperation and efficient operation of the various components of the entire cap-removing mechanism 3 during operation.

[0037] Please see the appendix Figure 1 - Appendix Figure 3 The sliding component 203 includes a pressing shaft 2031, the outer wall of which slides on the inner wall of the triangular plate 201. A sliding shaft 2032 is fixedly connected to the top of the pressing shaft 2031. The elastic component 204 includes a fixed circular plate 2041, the inner wall of which is fixed to the outer wall of the pressing shaft 2031 near the top. A spring 2042 is fixedly connected to the bottom of the outer wall of the fixed circular plate 2041. A spring 2042 is installed at the bottom of the outer wall of the fixed circular plate 2041 by a fixed connection. Spring 2042, the other end of which is firmly fixed to the inner wall of the fixing tube 1, and this fixing position is also close to the top of the fixing tube 1, so as to provide appropriate elastic support during the pressing process. The other end of spring 2042 is fixed to the inner wall of the fixing tube 1 near the top. The fixing assembly 205 includes a fixing groove 2051, which is opened on the outer wall of the pressing shaft 2031 near the bottom front and rear sides. Spring 2052 is fixedly connected to the inner wall of the fixing groove 2051.

[0038] Specifically, a sliding shaft 2032 is fixedly connected to the top of the pressing shaft 2031 to ensure a stable connection and smooth relative sliding. The elastic component 204 mainly consists of a fixed circular plate 2041, the inner wall of which is tightly fixed to the outer wall of the pressing shaft 2031. This fixed position is close to the top area of ​​the pressing shaft 2031 to ensure structural stability and the realization of the function of 2031. On the outer wall of the pressing shaft 2031, the specific position is close to the bottom front and rear sides of the pressing shaft to ensure the functionality and structural rationality of the fixing groove 2051. A spring 2052 is fixedly connected to the inner wall of the fixing groove 2051. The function of the spring 2052 is to provide additional elastic support to ensure that the entire device can work stably and smoothly during operation.

[0039] Please see the appendix Figure 1 - Appendix Figure 3The engaging assembly 206 includes an engaging shaft 2062, the outer wall of which is fixed to the other end of the second spring 2052. A sliding sleeve 2063 is slidably connected to the outer wall of a sliding shaft 2032. Engaging grooves 2061 are provided on both the front and rear sides of the inner wall of the sliding sleeve 2063. The outer walls of multiple engaging shafts 2062 engage with corresponding engaging grooves 2061. The sliding assembly 303 includes a sample vial 3031, which is disposed at the bottom of the outer wall of the fixed tube 1. A sliding cap 30 is slidably connected to the inner wall of the sample vial 3031. 32. The connecting component 304 includes a connecting block 3041. The bottom of the connecting block 3041 is fixed to the top of the sliding cover 3032. The sliding component 303 is mainly composed of a sample tube bottle 3031. The sample tube bottle 3031 is set at the bottom of the outer wall of the fixed tube 1. The inner wall of the sample tube bottle 3031 is connected to a sliding cover 3032 by a sliding connection to realize its opening and closing function. The inner wall of the connecting block 3041 is provided with a threaded groove 3042. The outer wall of the threaded groove 3042 is in contact with the threaded shaft 302.

[0040] Specifically, the engaging assembly 206 includes a key engaging shaft 2062, the outer wall of which is firmly fixed to the other end of the spring 2052. Simultaneously, the outer wall of the sliding shaft 2032 is connected to a sliding sleeve 2063 via a sliding connection. The inner wall of the sliding sleeve 2063 has specially designed engaging grooves 2061 on both its front and rear sides. The outer walls of the multiple engaging shafts 2062 precisely engage with their corresponding engaging grooves 2061 to ensure structural stability and functionality. The connecting assembly 304 includes a key connecting block 3041, the bottom of which is firmly fixed to the top of the sliding cover 3032. The inner wall of the connecting block 3041 has a threaded groove 3042, the outer wall of which is in close contact with and connected to a threaded shaft 302 to ensure the stability and functionality of the entire assembly.

[0041] Working principle: A sliding shaft 2032 slides on the inner wall of the fixed tube 1. A fixed circular plate 2041 is fixed near the top of the outer wall of the sliding shaft 2032. By pressing the sliding shaft 2031, the fixed groove 2051 fixed on the bottom inner wall of the sliding shaft 2032 can drive the second spring 2052 to retract inward, thereby freely adjusting the sliding sleeve 2063. After the sliding sleeve 2063 is adjusted to a suitable height, the fixed circular plate 2041 can drive the sliding shaft 2032 to move upward under the elastic action of the first spring 2042. At the same time, the locking shaft 2062 at the bottom of the pressing shaft 2031 can be locked in the inner wall of the locking groove 2061 under the elastic action of the second spring 2052, thereby realizing the free adjustment of the height of the bottle picking device to adapt to sample tubes of different heights. It is also convenient to operate and easy to adjust quickly.

[0042] A threaded shaft 302 is fixed at the bottom of the locking shaft 2062. By rotating, the threaded shaft 302 can be threadedly connected to the threaded groove 3042 on the inner wall of the connecting block 3041. At the same time, by pulling the triangular plate 201, the fixing sleeve 301 can drive the outer wall of the threaded shaft 302 to threadedly connect to the sliding cover 3032 and slide it in the inner wall of the sample tube bottle 3031, thereby realizing the removal of the cover. At the same time, by pressing the sliding cover 3032 after threading, it slides in the sample tube bottle 3031, which meets the requirement of placing it in a fixed position, thus meeting the usage requirements.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic cap removal device for ion chromatography injection tubes, comprising a fixing tube (1), characterized in that: The inner wall of the fixed tube (1) is slidably connected to an adjustment mechanism (2), which is used to adjust the length of the cap removal device. The outer wall of the adjustment mechanism (2) is provided with a cap removal mechanism (3), which is used to remove the cap. The adjustment mechanism (2) includes a triangular plate (201). The bottom of the outer wall of the triangular plate (201) is fixed to the top of the fixed tube (1). The outer wall of the fixed tube (1) is slidably connected to the left and right sides near the bottom. The inner wall of the triangular plate (201) is slidably connected to a sliding component (203). The outer wall of the sliding component (203) is fixedly connected to an elastic component (204) near the top. The bottom of the inner wall of the sliding component (203) is provided with a fixing component (205). The outer wall of the fixing component (205) is fixedly connected to a locking component (206).

2. The automatic cap removal device for ion chromatography injection tubes according to claim 1, characterized in that: The cap removal mechanism (3) includes a fixed sleeve (301), the top of which is slidably connected to the bottom of the inner wall of the fixed tube (1), the bottom of the sliding component one (203) is fixedly connected to a threaded shaft (302), the outer wall of the fixed tube (1) is provided with a sliding component two (303) near the bottom, and the top of the sliding component two (303) is provided with a connecting component (304).

3. The automatic cap removal device for ion chromatography injection tubes according to claim 1, characterized in that: The sliding component (203) includes a pressing shaft (2031), the outer wall of which slides on the inner wall of the triangular plate (201), and a sliding shaft (2032) is fixedly connected to the top of the pressing shaft (2031).

4. The automatic cap removal device for ion chromatography injection tubes according to claim 3, characterized in that: The elastic component (204) includes a fixed circular plate (2041), the inner wall of which is fixed to the outer wall of the pressing shaft (2031) near the top. A spring (2042) is fixedly connected to the bottom of the outer wall of the fixed circular plate (2041), and the other end of the spring (2042) is fixed to the inner wall of the fixed tube (1) near the top.

5. The automatic cap removal device for ion chromatography injection tubes according to claim 4, characterized in that: The fixing component (205) includes a fixing groove (2051), which is formed on the outer wall of the pressing shaft (2031) near the bottom front and rear sides. A spring (2052) is fixedly connected to the inner wall of the fixing groove (2051).

6. The automatic cap removal device for ion chromatography injection tubes according to claim 5, characterized in that: The engaging assembly (206) includes an engaging shaft (2062), the outer wall of which is fixed to the other end of the second spring (2052). The outer wall of the sliding shaft (2032) is slidably connected to a sliding sleeve (2063). The inner wall of the sliding sleeve (2063) is provided with engaging grooves (2061) on both the front and rear sides. The outer walls of the multiple engaging shafts (2062) engage with the corresponding engaging grooves (2061).

7. The automatic cap removal device for ion chromatography injection tubes according to claim 2, characterized in that: The second sliding component (303) includes a sample tube bottle (3031), which is disposed at the bottom of the outer wall of the fixed tube (1), and a sliding cap (3032) is slidably connected to the inner wall of the sample tube bottle (3031).

8. An automatic cap removal device for ion chromatography injection tubes according to claim 7, characterized in that: The connecting assembly (304) includes a connecting block (3041), the bottom of which is fixed to the top of the sliding cover (3032). The inner wall of the connecting block (3041) is provided with a threaded groove (3042), and the outer wall of the threaded groove (3042) is in contact with the threaded shaft (302).

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