A workbench that can identify the type of collection tube holder

Abstract

This invention discloses a workbench capable of identifying the type of collection tube holder, belonging to the field of analytical experimental equipment technology. It includes an identification plate and a moving unit. The moving unit holds the collection tube holder, and the identification plate is equipped with at least one set of identification devices. Each identification device includes several photoelectric switches at different positions. The photoelectric switches at different positions output signals upon detecting corresponding positioning baffles. The positioning baffles are located at one end of the collection tube holder. When the collection tube holder moves a maximum distance toward the identification plate via the moving unit, the positioning baffles enter the detection area of ​​the corresponding photoelectric switch. This invention utilizes the positioning baffles at the end of the collection tube holder in conjunction with the identification devices on the identification plate to achieve identification of different types of collection tube holders. Furthermore, the identification plate uses photoelectric switches distributed at different positions to identify the corresponding positioning baffles, resulting in higher detection accuracy and less susceptibility to interference.

Description

Technical Field

[0001] This utility model relates to the field of analytical experimental equipment technology, and in particular to a workbench that can identify the type of collection tube holder. Background Technology

[0002] Collection tubes, as containers for liquids, are commonly used instruments in various analytical experiments. For example, in liquid chromatography equipment, collection tubes held by collection tube holders are used to collect target components separated by the chromatographic column. Depending on the sample being separated, different specifications (e.g., different capacities) of collection tubes are required, necessitating the use of different types of collection tube holders to hold tubes of varying sizes. The classification of collection tube holders allows for identification of the tube's specifications based on the correspondence between the holder type and the tube's size. Traditional collection tube holders rely on labels or serial numbers to record information, making tube identification cumbersome and prone to errors. Therefore, a device that can efficiently and accurately identify the type of collection tube holder is lacking. Utility Model Content

[0003] The purpose of this invention is to provide a workbench that can identify the type of collection tube holder in order to solve the problem that traditional methods of identifying the type of collection tube are not efficient and accurate. It has the advantages of automatic identification of the type of collection tube holder, simple and quick operation, and less prone to error.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A workbench for identifying the type of collection tube holder includes an identification plate and a moving unit. The moving unit is used to place the collection tube holder. The identification plate is provided with at least one set of identification devices, each of which includes several photoelectric switches in different positions. The photoelectric switches in different positions output signals by detecting corresponding positioning baffles. The positioning baffles are disposed at one end of the collection tube holder. When the collection tube holder moves a maximum distance toward the identification plate via the moving unit, the positioning baffles enter the detection area of ​​the corresponding photoelectric switch.

[0006] Preferably, the photoelectric switches are distributed longitudinally, and the positioning baffles on the different types of collection tube holders are set at different heights.

[0007] Preferably, the moving unit further includes a clamp, on which the collection tube holder is movably mounted.

[0008] Preferably, the clamp includes a base plate, and a first side plate and a second side plate are respectively provided at both ends of the base plate. The second side plate is connected to the end of the base plate through an elastic connector.

[0009] Preferably, the first side plate is located at the end of the collection tube holder where the positioning baffle is set, and a U-shaped groove is formed on the first side plate with the opening of the U-shaped groove facing upward.

[0010] Preferably, the elastic connector includes a connecting pin and a spring sleeved on the outer wall of the connecting pin. The second side plate is movably connected to the bottom plate through the connecting pin, and the spring is used to provide elastic force for the second side plate to approach the bottom plate.

[0011] Preferably, it also includes a table, with the identification plate installed at one end of the table. The moving unit also includes a slider and a slide rail. The slider is driven by a drive mechanism to move on the slide rail. A base is installed under the table, and the slide rail is set on the base. A groove is also provided on the table that is consistent with the length direction of the slide rail. The slider passes through the groove and connects to the clamp.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. By using the positioning baffles at the ends of the collection tube holders in conjunction with the identification devices on the identification plate, the identification plate can identify different types of collection tube holders. Furthermore, the identification plate uses photoelectric switches distributed at different positions to identify the corresponding positioning baffles, which greatly improves the identification efficiency.

[0014] 2. The collecting tube holder of this utility model is fixed by a clamp, which not only facilitates the removal of the collecting tube holder, but also allows the clamp to move with the slider, thereby controlling the positioning baffle on the collecting tube holder to enter the detection area of ​​the photoelectric switch. This results in more accurate recognition and reduces the likelihood of errors. Furthermore, a U-shaped groove is provided on the side plate of the clamp to facilitate the adaptation of collecting tube holders with positioning baffles of different heights. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the workbench of this utility model.

[0016] Figure 2 This is a schematic diagram showing the distribution structure of the positioning baffles at different positions on the collection tube holder of this utility model.

[0017] Figure 3 This is a side view of the workbench of this utility model.

[0018] Figure 4 This is a schematic diagram of the countertop structure of this utility model.

[0019] Figure 5 This is a schematic diagram showing the corresponding structure of the photoelectric switch and the positioning baffle of the identification device of this utility model.

[0020] Figure 6This is a schematic diagram of the state of the identification and positioning baffle at detection position ① of the identification device of this utility model.

[0021] Figure 7 This is a schematic diagram showing the state of the identification and positioning baffle at detection position ② of the identification device of this utility model.

[0022] Figure 8 This is a schematic diagram of the state of the identification and positioning baffle at detection position ③ of the identification device of this utility model.

[0023] Figure 9 This is a schematic diagram of the clamp structure of this utility model.

[0024] In the diagram: 1. Identification plate, 2. Tabletop, 3. Fixture, 4. Positioning baffle, 5. Slider, 6. Slide rail, 7. Base, 8. Collection tube holder, 9. Identification device, 10. Slide groove, 11. Base plate, 12. First side plate, 13. Second side plate, 14. Connecting pin, 15. Spring, 16. U-shaped groove. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-4 As shown, a workbench capable of identifying the type of collection tube holder is disclosed, including an identification plate 1 and a moving unit. The moving unit is used to place the collection tube holder 8. The identification plate 1 is provided with at least one set of identification devices 9. The identification devices 9 include several photoelectric switches in different positions. The photoelectric switches in different positions output signals by detecting the corresponding positioning baffles 4. The positioning baffles 4 are disposed at one end of the collection tube holder 8. When the collection tube holder 8 moves to the identification plate 1 at the maximum distance through the moving unit, the positioning baffles 4 enter the detection area of ​​the corresponding photoelectric switch.

[0027] The principle of this workbench is to set positioning baffles 4 at different positions on different types of collection tube holders 8, and to set multiple sets of identification devices 9 on the identification plate 1. Since the photoelectric switches on each set of identification devices 9 are in different positions, when the positioning baffle 4 enters the detection area of ​​one of the photoelectric switches, the signal output by the photoelectric switch will change. The photoelectric switch is pre-set to correspond to a type of collection tube holder 8. Therefore, the type of collection tube holder 8 can be determined by which photoelectric switch output signal changes. There are many types of photoelectric switches. The following takes the through-beam photoelectric switch as an example. The principle of its output signal is: the through-beam photoelectric switch consists of a pair of light-emitting elements, a light-emitting diode and a light-receiving element photodiode. In operation, the light-emitting element is constantly lit. When there is no obstruction between the two, the light-receiving element receives the light emitted by the light-emitting element, generating a photocurrent due to the photoelectric effect, causing the through-beam photoelectric switch to output a high level. When the positioning baffle 4 enters the detection area of ​​the through-beam photoelectric switch, the light-receiving element can no longer receive light, and the output signal of the through-beam photoelectric switch changes from the normal high level (when there is no obstruction between the two) to a low level (when there is obstruction between the two). In addition to through-beam photoelectric switches, photoelectric switches can also be reflective photoelectric switches. Since photoelectric switches are existing technology, their principles will not be elaborated further.

[0028] The moving unit is there so that the collection tube holder 8 can be brought close to the identification plate 1, ensuring that the positioning baffle 4 set on it can enter the detection area of ​​the photoelectric switch.

[0029] As can be seen from the above, the position of the positioning baffle 4 needs to correspond to the position of the photoelectric switch, for example... Figure 2 As shown, there are three positions of the positioning baffles 4 on the collection tube holder 8, indicating that there are three types of collection tube holders 8. In order to identify the type of collection tube holder 8, each set of identification devices 9 on the identification plate 1 should also be equipped with three photoelectric switches to send three types of signals. It is only necessary to pre-correspond each signal to a type of collection tube holder 8. In this way, when one of the positioning baffles 4 enters the detection area of ​​the photoelectric switch, the type of collection tube holder 8 can be identified according to the change of the output signal. The above explanation of the principle of the photoelectric switch also shows that the identification device 9 belongs to the prior art, and pre-corresponding the output signal to the type does not require the involvement of the program development level.

[0030] like Figure 2 and Figure 4 As shown, the positioning baffles 4 on different types of collection tube holders 8 have different heights. Multiple photoelectric switches in a set of identification devices 9 are distributed longitudinally. Both the positioning baffles 4 and the photoelectric switches are longitudinally distributed, which does not occupy excessive lateral space, allowing multiple sets of collection tube holders 8 to be placed laterally, thus improving identification efficiency. Figure 5This is a schematic diagram showing the distribution of the three positioning baffles 4 corresponding to the three photoelectric switches. The photoelectric switches on the identification device 9, from top to bottom, are detection positions ①, ②, and ③. These three detection positions can sequentially identify collection tube holders 8 of three sizes: 1.5ml, 5ml, and 15ml. Figure 6-8 As shown, there are three sets of identification devices 9. When the moving unit drives the collecting tube holder 8 to move to the positioning baffle 4, which can enter the detection area of ​​the photoelectric switch, as shown... Figure 6 As shown, if the positioning baffle 4 on the collection tube holder 8 enters the detection area of ​​detection position ①, it indicates that the collection tube holder 8 is of the 1.5ml specification. Similarly, Figure 7 The image shows that the positioning baffle 4 on the collection tube holder 8 enters the detection area of ​​detection position ②, indicating that the collection tube holder 8 is of 5ml specification. Figure 8 The image shows that when the positioning baffle 4 on the collection tube holder 8 enters the detection area of ​​detection position ③, it indicates that the collection tube holder 8 belongs to the 15ml specification. Using three sets of identification devices 9, three specifications of collection tube holders 8 can be identified simultaneously during one movement, which greatly improves the identification efficiency.

[0031] Compared to other detection methods such as infrared sensing, the interaction between the positioning baffle 4 and the photoelectric switch chosen in this application is less susceptible to environmental interference and offers higher detection accuracy. To ensure the positioning baffle 4 can smoothly enter the detection area of ​​the photoelectric switch, a moving unit is used to drive its movement. This moving unit also includes a clamp 3, and a collection tube holder 8 is movably mounted on the clamp 3. Figure 3 As shown, the clamp 3 can be used to easily pick up and put down the collection tube holder 8. The positioning baffle 4 and the collection tube holder 8 are integrated into one structure, so it is also more convenient to replace different types of collection tube holders 8.

[0032] like Figure 3 and Figure 9 As shown, the clamp 3 includes a base plate 11, with a first side plate 12 and a second side plate 13 respectively provided at both ends of the base plate 11. The second side plate 13 is connected to the end of the base plate 11 through an elastic connector. The second side plate 13 is elastically connected, so it can be pulled away from the first side plate 12, and the distance between the first side plate 12 and the second side plate 13 becomes larger, which makes it easier to place the collection tube holder 8 on the base plate 11. Under the action of elastic restoring force, the elastic connector pulls the second side plate 13 closer to the first side plate 12, and the two side plates clamp and fix the collection tube holder 8.

[0033] To avoid the first side plate 12 affecting the positioning baffle 4, such as Figure 1-2 and Figure 9As shown, the first side plate 12 is located at the end of the collecting tube holder 8 where the positioning baffle 4 is provided. A U-shaped groove 16 is provided on the first side plate 12, with the opening of the U-shaped groove 16 facing upward. Since the positioning baffle 4 is located at the end of the collecting tube holder 8, and the first side plate 12 and the second side plate 13 are usually located at the two ends of the collecting tube holder 8 respectively in order to ensure clamping stability, the height of the two side plates cannot be too high, otherwise it will block the positioning baffle 4. However, if the height of the side plates is too low, it will affect the clamping stability. Therefore, a U-shaped groove 16 with an upward opening can be provided on the first side plate 12 near the positioning baffle 4. In this way, when the collecting tube holder 8 is lifted up and down, the U-shaped groove 16 just reserves the position of the positioning baffle 4, avoiding blocking the positioning baffle 4 and affecting its interaction with the photoelectric switch.

[0034] like Figure 9 As shown, the elastic connector includes a connecting pin 14 and a spring 15 sleeved on the outer wall of the connecting pin 14. The second side plate 13 is movably connected to the bottom plate 11 through the connecting pin 14. The spring 15 is used to provide elastic force for the second side plate 13 to approach the bottom plate 11. There are many types of elastic connectors. This application is not limited to the combination of spring 15 and connecting pin 14. Other methods can also be selected, which will not be elaborated further.

[0035] The workbench also includes a tabletop 2, with an identification plate 1 mounted at one end. The moving unit also includes a slider 5 and a slide rail 6. The slider 5 is driven by a drive mechanism to move on the slide rail 6. A base 7 is mounted below the tabletop 2, and the slide rail 6 is mounted on the base 7. A groove 10, aligned with the length of the slide rail 6, is also provided on the tabletop 2. The slider 5 passes through the groove 10 and connects to the clamp 3. By mounting the clamp 3 on the slider 5, the slider 5 moves the collecting tube holder 8. The slider 5 can be connected to an external drive device capable of linear motion, such as an electric actuator, cylinder, lead screw nut, belt drive, or other drive components; no specific limitation is made here.

[0036] As can be seen from the above, the clamp 3 can be moved by the slider 5. In order to ensure the stability of the movement, a slide rail 6 is installed under the slider 5. This ensures that the slider 5 will not deviate left or right when it moves. This ensures that the positioning baffle 4 can accurately enter the detection area of ​​the corresponding photoelectric switch. The slider 5 passes through the slide groove 10 on the table 2, connects to the clamp 3 above and the slide rail 6 below. Therefore, the slide groove 10 can play a limiting role, preventing the slider 5 from moving too much, which would cause the positioning baffle 4 to move too much and damage the identification device 9. The cooperation of the slide groove 10 and the slide rail 6 can also provide a double stabilizing effect, effectively preventing the clamp 3 from deviating during movement.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A worktable capable of identifying a collection tube holder class, characterized by, It includes an identification plate (1) and a moving unit, on which a collection tube holder (8) is placed. The identification plate (1) is provided with at least one set of identification devices (9), which include several photoelectric switches in different positions. The photoelectric switches in different positions change their output signals by detecting the corresponding positioning baffles (4) in the detection area of ​​the photoelectric switches. The positioning baffle (4) is disposed at one end of the collection tube holder (8), and the collection tube holder (8) can move toward the identification plate (1) through the moving unit until the positioning baffle (4) enters the detection area of ​​the corresponding photoelectric switch.

2. A worktable capable of identifying the type of collection tube holder according to claim 1, wherein, Several photoelectric switches are distributed longitudinally, and the positioning baffles (4) on different types of collection tube holders (8) are set at different heights.

3. A worktable for identifying the class of a collection tube holder according to claim 1, wherein The moving unit also includes a clamp (3), and a collection tube holder (8) is movably mounted on the clamp (3).

4. A worktable for identifying the class of a collection tube holder according to claim 3, wherein The clamp (3) includes a base plate (11), and a first side plate (12) and a second side plate (13) are respectively provided at both ends of the base plate (11). The second side plate (13) is connected to the end of the base plate (11) through an elastic connector.

5. A worktable for identifying the class of a collection tube holder according to claim 4, wherein The first side plate (12) is located at one end of the collection tube holder (8) where the positioning baffle (4) is set. A U-shaped groove (16) is opened on the first side plate (12), and the opening of the U-shaped groove (16) faces upward.

6. A worktable for identifying the class of a collection tube holder according to claim 4, wherein The elastic connector includes a connecting pin (14) and a spring (15) sleeved on the outer wall of the connecting pin (14). The second side plate (13) is movably connected to the bottom plate (11) through the connecting pin (14). The spring (15) is used to provide elastic force for the second side plate (13) to approach the bottom plate (11).

7. A worktable for identifying the class of a collection tube holder according to claim 3, wherein It also includes a table (2), an identification plate (1) is installed at one end of the table (2), the moving unit also includes a slider (5) and a slide rail (6), the slider (5) is driven by a drive mechanism to move on the slide rail (6), a base (7) is installed under the table (2), the slide rail (6) is set on the base (7), and a groove (10) is also provided on the table (2) in the same direction as the length of the slide rail (6), the slider (5) passes through the groove (10) and is connected to the clamp (3).

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