A sampling device for a fully automatic biochemical analyzer using a linear guide

Abstract

The present invention relates to a sampling device of a fully automatic biochemical analyzer using a linear guide rail, belonging to the technical field of medical devices. The sampling device comprises a guide rail assembly, a hollow shaft assembly, a first drive assembly and a second drive assembly; the first drive assembly drives the hollow shaft assembly to perform lifting motion through the synchronous belt (27) and the synchronous belt fixing plate (13); the second drive assembly drives the synchronous belt wheel XL28 teeth (6) to perform rotational motion through the synchronous belt (19), and because the synchronous belt wheel XL28 teeth (6) and the guide rail assembly are fixedly connected, the guide rail assembly and the hollow shaft (1) are fixedly connected, thereby causing the hollow shaft (1) to perform rotational motion. The present invention realizes the rotation and lifting motion of the hollow shaft based on the guide rail assembly and the hollow shaft assembly, and has the characteristics of simple and reasonable structure, light movement, compact space and high stability.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a sampling device of a full-automatic biochemical analyzer using a linear guide rail. Background Art

[0002] In clinical testing, biochemical analysis is a very important test, which is usually completed by a biochemical analyzer. A biochemical analyzer is an instrument that uses the principle of photoelectric colorimetry to measure a specific chemical component in body fluids. With the development of science and technology, fully automatic biochemical analyzers are widely used in the detection of routine biochemical indicators such as blood routine, liver function, and kidney function. At present, in order to complete the sampling and adding functions of the sampling device in the fully automatic biochemical analyzer at different positions, a hollow shaft is required to complete the rotation and lifting movements. Most products on the market use splines or linear bearings with optical shafts to realize the rotation and lifting movements of the hollow shaft, but this structure has problems such as high degree of customization, long processing cycle, and lack of stability. Summary of the invention

[0003] Based on this, it is necessary to provide a sampling device for a fully automatic biochemical analyzer to address the problems of high degree of customization, long processing cycle and lack of stability in the current sampling device based on splines or linear bearings with optical shafts.

[0004] To solve the above problems, the present invention adopts the following technical solutions:

[0005] A sampling device of a fully automatic biochemical analyzer using a linear guide rail comprises a guide rail assembly, a hollow shaft assembly, a probe fixing frame assembly, a first driving assembly and a second driving assembly.

[0006] The first stepper motor drives the driving wheel to rotate, and then drives the first synchronous belt, and the first synchronous belt drives the synchronous belt fixing plate to lift and lower, and the synchronous belt fixing plate drives the hollow shaft assembly to lift and lower. At the same time, the guide rail assembly and the hollow shaft assembly construct a motion constraint so that it can only move along the direction of movement of the guide rail, that is, the vertical direction.

[0007] The second stepper motor drives the synchronous wheel to rotate, and the synchronous wheel drives the synchronous pulley XL28 teeth to rotate through the second synchronous belt. Because the synchronous rotating plate and the synchronous pulley XL28 teeth are fixedly connected, when the linear guide rail rotates, the locking seat and the locking block cooperate and are fixedly connected to the hollow shaft, and the locking seat is fixed on the linear guide rail, so the guide rail assembly drives the hollow shaft to rotate.

[0008] Compared with the prior art, the sampling device of the fully automatic biochemical analyzer using a linear guide rail proposed in the present invention has the following beneficial effects:

[0009] The sampling device of the automatic biochemical analyzer is based on a guide rail assembly, a hollow shaft assembly and the cooperation between the two, and realizes the rotation and lifting of the hollow shaft with the assistance of a first drive assembly and a second drive assembly. It has the characteristics of simple and reasonable structure, light movement, compact space and high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is an exploded schematic diagram of a sampling device of a fully automatic biochemical analyzer using a linear guide rail according to the present invention;

[0011] Figure 2 It is a structural schematic diagram of a sampling device of a fully automatic biochemical analyzer using a linear guide rail according to the present invention;

[0012] Figure 3 is a schematic diagram of the structure of the guide rail assembly;

[0013] Figure 4 It is a structural schematic diagram of the hollow shaft assembly. DETAILED DESCRIPTION

[0014] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0015] In one embodiment, the present invention discloses a sampling device of a fully automatic biochemical analyzer using a linear guide rail, the sampling device comprising a guide rail assembly, a hollow shaft assembly, a probe fixing frame assembly, a first driving assembly and a second driving assembly; specifically, a first stepper motor 26 drives a driving wheel 28 to rotate, thereby driving a first synchronous belt 27, and the first synchronous belt 27 drives the synchronous belt fixing plate 13 to perform lifting movement, and the synchronous belt fixing plate 13 drives the hollow shaft assembly to perform lifting movement, and at the same time, the guide rail assembly and the hollow shaft assembly construct a motion constraint , so that it can only move along the direction of movement of the guide rail, that is, the vertical direction; the second stepper motor drives the synchronous wheel 18 to rotate, and the synchronous wheel 18 drives the synchronous pulley XL28 tooth 6 to rotate through the second synchronous belt 19. Because the synchronous rotating plate 9 and the synchronous pulley XL28 tooth 6 are fixedly connected, when the linear guide 15 rotates, the locking seat 14 and the locking block 16 cooperate to be fixedly connected with the hollow shaft 1, and the locking seat is fixed on the linear guide 15, so the guide rail assembly drives the hollow shaft 1 to rotate.

[0016] The sampling device of the fully automatic biochemical analyzer in the above embodiment is based on the guide rail assembly, the hollow shaft assembly and the cooperation between the two, and realizes the rotation and lifting of the hollow shaft with the assistance of the first drive assembly and the second drive assembly. It has the characteristics of simple and reasonable structure, light movement, compact space and high stability.

[0017] As a specific implementation method, Figure 3 As shown, the guide rail assembly includes a synchronous rotating plate 9, a linear guide 15, a locking seat 14, a locking block 16, a second flange bearing 17 and a concentric shaft 29; the linear guide 15 is fixed in the synchronous rotating plate 9, the locking seat 14 is fixed on the linear guide 15, the second flange bearing 17 is fixed in the bottom hole of the synchronous rotating plate 9, the concentric shaft 29 is sleeved in the second flange bearing 17, and the concentric shaft 29 is fixedly connected to the bottom plate 30 of the probe fixing frame, and the tooth 6 of the synchronous pulley XL28 is fixed to the through hole on the other side of the synchronous rotating plate 9.

[0018] In this embodiment, if Figure 4 As shown, the hollow shaft assembly includes a hollow shaft 1, a synchronous belt fixing plate 13, a cassette plate 24, a first flange bearing 12, a first synchronous belt 27 and a lifting optical coupling piece 25; preferably, the first flange bearing 12 is fixed on the upper and lower parts of the synchronous belt fixing plate 13, the hollow shaft 1 is fixed on the synchronous belt fixing plate 13, the other side of the synchronous belt fixing plate 13 is fixedly connected to the first synchronous belt 27 through the cassette plate 24, and the lifting optical coupling piece 25 is fixed on the synchronous belt fixing plate 13.

[0019] Furthermore, when a lifting action is required, the first stepper motor 26 is connected to the control system of the fully automatic biochemical analyzer, and the first synchronous belt 27 is driven by the driving wheel 28 to perform lifting movement. The synchronous belt fixing plate 13 in the hollow shaft assembly is fixedly connected to the first synchronous belt 27, and the hollow shaft 1 is driven to perform lifting movement.

[0020] Specifically, when a rotation action is required, the second stepper motor is connected to the control system of the fully automatic biochemical analyzer, and the second synchronous belt 19 is driven by the synchronous wheel 18 to rotate the synchronous belt pulley XL28 tooth 6. The synchronous rotating plate 9 is fixedly connected to the synchronous belt pulley XL28 tooth 6, and the hollow shaft 1 is fixedly connected to the synchronous rotating plate 9 through the locking seat 14. The synchronous rotating plate 9 will drive the hollow shaft 1 to perform synchronous rotation around the central axis of the hollow shaft 1.

[0021] In this embodiment, the parts that perform the lifting and rotating movements use linear guide rails of standard specifications, which reduces the difficulty and cost of purchasing raw materials, improves the stability of the structure, and is easy to repair and replace, making product upgrades simple.

[0022] Furthermore, the rotation center lines of the synchronous rotating plate 9, the hollow shaft 1 and the coaxial shaft 29 are on the same axis to ensure the rotation and lifting efficiency of the hollow shaft 1, thereby ensuring the efficient operation of the probe mechanism.

[0023] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0024] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A sampling device for a fully automatic biochemical analyzer using a linear guide, characterized in that: It includes a guide rail assembly, a hollow shaft assembly, a probe fixing frame assembly, a first driving assembly and a second driving assembly; The guide rail assembly comprises a synchronous rotating plate (9), a linear guide rail (15), a locking seat (14), a locking block (16), a second flange bearing (17) and a coaxial shaft (29); the probe fixing frame assembly comprises a probe fixing frame bottom plate (30); The linear guide rail (15) is fixed in the synchronous rotating plate (9), the locking seat (14) is fixed on the linear guide rail (15), the synchronous rotating plate (9) is connected with the concentric shaft (29) through the second flange bearing (17), and the concentric shaft (29) is fixedly connected to the bottom plate (30) of the probe fixing frame, and a hole is provided on the other side of the synchronous rotating plate (9), which can be fixedly connected with the synchronous pulley XL28 teeth (6), and the synchronous pulley XL28 teeth (6) are used to rotate under the drive of the second driving component; The hollow shaft assembly comprises a hollow shaft (1), a synchronous belt fixing plate (13), a cassette plate (24), a first flange bearing (12), a first synchronous belt (27) and a lifting optical coupling piece (25); The first flange bearing (12) is fixed to the upper and lower parts of the synchronous belt fixing plate (13), the hollow shaft (1) is fixed to the synchronous belt fixing plate (13), the other side of the synchronous belt fixing plate (13) is fixedly connected to the first synchronous belt (27) via the cassette plate (24), and the lifting optical coupling piece (25) is fixed to the synchronous belt fixing plate (13); The first driving assembly comprises a first stepper motor (26) and a driving wheel (28), wherein the first stepper motor (26) drives the driving wheel (28) to rotate, thereby driving a first synchronous belt (27), and the first synchronous belt (27) drives the synchronous belt fixing plate (13) to move up and down.

2. The sampling device of a fully automatic biochemical analyzer using a linear guide rail according to claim 1, characterized in that: The guide rail assembly fixes the hollow shaft (1) on the locking seat (14) via the locking block (16).

3. A sampling device for a fully automatic biochemical analyzer using a linear guide rail according to claim 1 or 2, characterized in that: The upper hole and the lower hole of the synchronous rotating plate (9), the concentric shaft and the center lines of the hollow shaft are on the same axis.

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