Automatic sampling device for chemiluminescence immunity analyzer

Abstract

The utility model provides an automatic sampling device for a chemiluminescence immunity analyzer. A sampling assembly comprises a base I for bearing a sample frame and a first conveying mechanism arranged below the base I, the sample discharging assembly comprises a second base used for bearing a sample frame and a second conveying mechanism arranged below the second base. The transportation assembly comprises a third base which is connected with the first base and the second base and used for bearing the sample frame and a third transportation mechanism arranged below the third base, and the transportation direction of the first transportation mechanism and the transportation direction of the second transportation mechanism are perpendicular to the transportation direction of the third transportation mechanism. According to the utility model, automatic transportation, identification, code scanning and sampling operation of the sample frame are ensured, and the sample frame is limited and fixed by matching the groove on the sample frame with the clamping edge and the sample carrying hook, so that the sample frame is prevented from toppling under the condition that the normal transportation of the sample frame is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an automatic sample injection device for a chemiluminescence immunoassay analyzer. Background Art

[0002] With the development of modern medical device technology, fully automated sample transfer has become widely used in testing instruments. For example, in fluorescent immunoassay analyzers, the traditional sample introduction mechanism relies primarily on a hook to propel the sample rack, completing the sample introduction, identification, code scanning, sampling, and sample removal processes. In actual use, the entire process is prone to unbalanced force, causing the sample rack to tip over, resulting in the instrument failing to successfully perform the sample introduction, identification, code scanning, sampling, and sample removal, causing errors and affecting normal testing. Utility Model Content

[0003] The purpose of the utility model is to provide an automatic sample injection device for a chemiluminescence immunoassay analyzer to solve the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] An automatic sampling device for a chemiluminescence immunoassay instrument includes a sample rack for placing sample tubes, a sampling assembly, a sample discharge assembly and a transport assembly, wherein the sampling assembly includes a base 1 for carrying the sample rack and a first transport mechanism arranged below the base 1; the sample discharge assembly includes a base 2 for carrying the sample rack and a second transport mechanism arranged below the base 2; the transport assembly includes a base 3 for carrying the sample rack connected to the base 1 and the base 2, and a third transport mechanism arranged below the base 3, and the transport direction of the first and second transport mechanisms is perpendicular to the transport direction of the third transport mechanism; along the transport direction of the first or second transport mechanism, photoelectric detectors are provided at the front and rear ends of the base 1 and the base 2, and sample rack clamps are provided on the left and right sides for limiting and fixing the sample rack.

[0006] Furthermore, the first transport mechanism includes a sample transport claw and an IN stepper motor for driving the sample transport claw, and the base one is provided with a gap that enables the sample transport claw to be inserted and moved; the second transport mechanism includes a sample push plate and an OUT stepper motor for driving the sample push plate; the third transport mechanism includes a sample transport hook and an H-bridge stepper motor for driving the sample transport hook, and the base three is provided with a gap that enables the sample transport hook to be inserted and moved.

[0007] Furthermore, first grooves cooperating with the sample rack clamping edge are provided on the left and right sides of the lower end of the sample rack, and second grooves cooperating with the driving sample transport hook are provided on the bottom surface of the sample rack.

[0008] Furthermore, the third transport mechanism is also provided with an identification mechanism, a code scanning mechanism and a sampling mechanism.

[0009] It can be seen from the above technical solution that the utility model ensures the automatic transportation and identification, code scanning and sampling operations of the sample rack, while limiting and fixing the sample rack through the grooves on the sample rack in conjunction with the card edge and the sample transport hook, thereby avoiding the sample rack from tipping over without affecting the normal transportation of the sample rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 This is a schematic structural diagram of the first transport mechanism of the present utility model;

[0012] Figure 3 This is a schematic structural diagram of the second transport mechanism of the present utility model;

[0013] Figure 4 This is a schematic structural diagram of the third transport mechanism of the present utility model;

[0014] Figure 5 This is a schematic structural diagram of the sample rack of the utility model;

[0015] In the figure: 1. Photoelectric detector; 2. Sample rack clamp edge; 3. Sample transport claw; 4. IN stepper motor; 5. Sample push plate; 6. OUT stepper motor; 7. Sample transport hook; 8. H-bridge stepper motor; 9. First groove; 10. Second groove. DETAILED DESCRIPTION

[0016] A preferred embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0017] like Figure 1 The automatic sampling device for a chemiluminescence immunoassay shown includes a sample rack for placing sample tubes, a sampling assembly, a sample discharge assembly, and a transport assembly. The sampling assembly includes a base 1 for carrying the sample rack and a first transport mechanism arranged below the base 1; the sample discharge assembly includes a base 2 for carrying the sample rack and a second transport mechanism arranged below the base 2; the transport assembly includes a base 3 for carrying the sample rack connecting the base 1 and the base 2, and a third transport mechanism arranged below the base 3, and the transport directions of the first transport mechanism and the second transport mechanism are perpendicular to the transport direction of the third transport mechanism.

[0018] Specifically, along the transport direction of the first or second transport mechanism, bases one and two are provided with photoelectric detectors 1 at their front and rear ends, and sample rack retaining edges 2 are provided on their left and right sides to limit and secure the sample rack. In this preferred embodiment, the right sample rack retaining edge of base one is provided with a notch for placing the sample rack, and the left sample rack retaining edge of base one is provided with a notch for allowing the sample rack to enter the third transport mechanism. Base three is also provided with a sample rack retaining edge on its left side, which is connected to the left sample rack retaining edge of base two. The sample rack retaining edges 2 can limit and secure the sample rack, preventing it from tipping over without affecting its normal transport.

[0019] like Figure 2 The first transport mechanism shown includes a sample transport claw 3 and an IN stepper motor 4 for driving the sample transport claw 3. The base is provided with a gap that allows the sample transport claw 3 to be inserted and moved. The sample transport claw 3 is connected to a first synchronous belt, and the first synchronous belt is connected to a first driving wheel and a first driven wheel. The first driving wheel is connected to the IN stepper motor 4.

[0020] like Figure 3 The second transport mechanism shown includes a sample push plate 5 and an OUT stepper motor 6 for driving the sample push plate 5 , wherein the sample push plate 5 is connected to a second synchronous belt, the second synchronous belt is connected to a second driving wheel and a second driven wheel, and the second driving wheel is connected to the OUT stepper motor 6 .

[0021] like Figure 4 The third transport mechanism shown includes a sample transport hook 7 and an H-bridge stepper motor 8 for driving the sample transport hook 7, the sample transport hook 7 is connected to a third synchronous belt, the third synchronous belt is connected to a third driving wheel and a third driven wheel, the third driving wheel is connected to the H-bridge stepper motor 8; a gap is provided on the base three to enable the sample transport hook 7 to be engaged and moved.

[0022] like Figure 5 As shown, the left and right sides of the lower end of the sample rack described in this preferred embodiment are provided with first grooves 9 that cooperate with the sample rack clamping edge, and the bottom surface of the sample rack is provided with a second groove 10 that cooperates with the driving sample transport hook, which can prevent tipping without affecting the normal movement of the sample rack.

[0023] The operation process of the automatic sampling device of the present invention is as follows: the sample rack to be transported is placed on the base one from the notch of the sample rack clamping edge on the right side of the base one; the IN stepping motor 4 drives the first driving wheel and the first driven wheel and the first synchronous belt to drive the sample transport claw 3 to transport the sample rack to the base three; the H-bridge stepping motor 8 drives the third driving wheel and the third driven wheel and the third synchronous belt to drive the sample transport hook 7 to transport the sample rack to the base two; the OUT stepping motor 6 drives the second driving wheel and the second driven wheel and the second synchronous belt to drive the sample push plate 5 to push the sample rack to the sample outlet; in specific use, the third transport mechanism is also provided with an identification mechanism, a code scanning mechanism and a sampling mechanism, which can automatically realize identification, code scanning and sampling operations during the transportation of the sample rack.

[0024] The above-described embodiments are merely descriptions of preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. An automatic sampling device for a chemiluminescent immunoassay analyzer, comprising a sample rack for placing sample tubes, a sample injection assembly, a sample output assembly, and a transport assembly, characterized in that: The sampling assembly includes a base 1 for carrying a sample rack and a first transport mechanism disposed below the base 1; The sample discharging assembly includes a second base for carrying the sample rack and a second transport mechanism arranged below the second base; The transport assembly includes a base 3 connected to the base 1 and the base 2 for carrying the sample rack, and a third transport mechanism disposed below the base 3, wherein the transport directions of the first transport mechanism and the second transport mechanism are perpendicular to the transport direction of the third transport mechanism; Along the transport direction of the first transport mechanism or the second transport mechanism, photoelectric detectors are provided at the front and rear ends of the base one and the base two, and sample rack clamping edges are provided at the left and right sides for limiting and fixing the sample rack.

2. The automatic sample injection device for a chemiluminescence immunoassay analyzer according to claim 1, characterized in that: The first transport mechanism includes a sample transport claw and an IN stepper motor for driving the sample transport claw, and the base 1 is provided with a gap that enables the sample transport claw to be inserted and moved; the second transport mechanism includes a sample push plate and an OUT stepper motor for driving the sample push plate; the third transport mechanism includes a sample transport hook and an H-bridge stepper motor for driving the sample transport hook, and the base 3 is provided with a gap that enables the sample transport hook to be inserted and moved.

3. The automatic sample injection device for a chemiluminescent immunoassay analyzer according to claim 2, characterized in that: The left and right sides of the lower end of the sample rack are provided with first grooves that cooperate with the sample rack clamping edge, and the bottom surface of the sample rack is provided with a second groove that cooperates with the driving sample transport hook.

4. The automatic sample injection device for a chemiluminescent immunoassay analyzer according to claim 2, characterized in that: The third transport mechanism is also provided with an identification mechanism, a code scanning mechanism and a sampling mechanism.

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