CN112345783A

CN112345783A - Sampling device of full-automatic biochemical analyzer using linear guide rail

Info

Publication number: CN112345783A
Application number: CN202010329302.9A
Authority: CN
Inventors: 王晟今; 闫海洋; 董泽宇
Original assignee: Changchun Bulaze Medical Technology Co ltd
Current assignee: Changchun Bulaze Medical Technology Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-02-09
Anticipated expiration: 2040-04-23
Also published as: CN112345783B

Abstract

The invention relates to a sampling device for an 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 driving assembly and a second driving assembly; the first drive assembly The assembly drives the hollow shaft assembly to move up and down through the synchronous belt (27) and the synchronous belt fixing plate (13); the second drive assembly drives the XL28 tooth (6) of the synchronous pulley through the synchronous belt (19). Rotating movement is performed, and because the XL28 teeth (6) of the synchronous pulley are fixedly connected with the guide rail assembly, the guide rail assembly and the hollow shaft (1) are fixedly connected, thereby causing the hollow shaft (1) to perform a rotating movement. The invention realizes the rotation and lifting 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

Sampling device of full-automatic biochemical analyzer using linear guide rail

Technical Field

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

Background

In clinical tests, biochemical analysis is a very important test, and the biochemical analysis test is usually performed by a biochemical analyzer. The biochemical analyzer is an instrument for measuring a certain specific chemical component in body fluid by adopting a photoelectric colorimetric principle, and along with the development of scientific technology, the full-automatic biochemical analyzer is widely applied to the detection of conventional biochemical indexes such as blood routine, liver function, kidney function and the like. At present, in order to complete the sample sucking and adding functions of a sampling device in different positions in a full-automatic biochemical analyzer, a hollow shaft is required to complete the rotating and lifting actions, and products on the market mostly adopt a structure of a spline or a linear bearing matched with an optical axis to realize the rotating and lifting actions of the hollow shaft, but the structure has the problems of high customization degree, long processing period, poor stability and the like.

Disclosure of Invention

Based on this, it is necessary to provide a sampling device of a full-automatic biochemical analyzer aiming at the problems of high customization degree, long processing period and poor stability of the existing sampling device based on a spline or a linear bearing matched with an optical axis.

In order to solve the problems, the invention adopts the following technical scheme:

a sampling device of a full-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.

The first stepping motor (26) drives the driving wheel (28) to rotate so as to drive the synchronous belt (27), the synchronous belt (27) drives the synchronous belt fixing plate (13) to move up and down, the synchronous belt fixing plate (13) drives the hollow shaft assembly to move up and down, and meanwhile, the guide rail assembly and the hollow shaft assembly form motion constraint so that the guide rail assembly can only move along the moving direction of the guide rail, namely the vertical direction;

second step motor (31) drive synchronizing wheel (18) carry out rotary motion, synchronizing wheel (18) pass through hold-in range (19) drive synchronous pulley XL28 tooth (6) are rotary motion, because synchronous rotor plate (9) with synchronous pulley XL28 tooth (7) fixed connection again, when linear guide (15) rotate, locking seat (14) with latch segment (16) cooperation and with hollow shaft (1) fixed connection, the locking seat is fixed again on linear guide (15), so the guide rail subassembly drives hollow shaft (1) carries out rotary motion.

Compared with the prior art, the sampling device of the full-automatic biochemical analyzer using the linear guide rail has the following beneficial effects:

the sampling device of the automatic biochemical analyzer realizes the rotation and lifting actions of the hollow shaft under the assistance of the first driving assembly and the second driving assembly based on the guide rail assembly, the hollow shaft assembly and the mutual matching between the guide rail assembly and the hollow shaft assembly, and has the characteristics of simple and reasonable structure, light and handy movement, compact space, high stability and the like.

Drawings

FIG. 1 is an exploded view of a sampling device of a fully automatic biochemical analyzer using a linear guide according to the present invention;

FIG. 2 is a schematic structural diagram of a sampling device of a fully automatic biochemical analyzer using a linear guide rail according to the present invention;

FIG. 3 is a schematic view of the rail assembly;

FIG. 4 is a schematic structural view of a hollow shaft assembly.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

In one embodiment, the invention discloses a sampling device of a full-automatic biochemical analyzer using a linear guide rail, which comprises a guide rail assembly, a hollow shaft assembly, a probe fixing frame assembly, a first driving assembly and a second driving assembly; specifically, the first stepping motor (26) drives the driving wheel (28) to rotate, so as to drive the synchronous belt (27), the synchronous belt (27) drives the synchronous belt fixing plate (13) to move up and down, the synchronous belt fixing plate (13) drives the hollow shaft assembly to move up and down, and meanwhile, the guide rail assembly and the hollow shaft assembly form motion constraint so that the guide rail assembly can only move along the moving direction of the guide rail, namely the vertical direction; second step motor (31) drive synchronizing wheel (18) carry out rotary motion, synchronizing wheel (18) pass through hold-in range (19) drive synchronous pulley XL28 tooth (6) are rotary motion, because synchronous rotor plate (9) with synchronous pulley XL28 tooth (7) fixed connection again, when linear guide (15) rotate, locking seat (14) with latch segment (16) cooperation and with hollow shaft (1) fixed connection, the locking seat is fixed again on linear guide (15), so the guide rail subassembly drives hollow shaft (1) carries out rotary motion.

The sampling device of the full-automatic biochemical analyzer in the embodiment realizes the rotation and lifting actions of the hollow shaft under the assistance of the first driving assembly and the second driving assembly based on the guide rail assembly, the hollow shaft assembly and the mutual matching of the guide rail assembly and the hollow shaft assembly, and has the characteristics of simple and reasonable structure, light movement, compact space, high stability and the like.

As a specific embodiment, as shown in fig. 3, 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 concentric shaft (29);

linear guide (15) are fixed in synchronous commentaries on classics board (9), be fixed with on linear guide (15) locking seat (14), second flange bearing (17) are fixed in the bottom hole of synchronous commentaries on classics board (9), second flange bearing (17) endotheca is equipped with concentric shaft (29), and concentric shaft (29) with probe mount bottom plate (30) fixed connection, the opposite side through-hole of synchronous commentaries on classics board (9) is fixed with synchronous band pulley XL28 tooth (6).

In the present embodiment, as shown in fig. 4, the hollow shaft assembly includes a hollow shaft (1), a synchronous belt fixing plate (13), a belt clamping plate (24), a first flange bearing (12), a first synchronous belt (27), and a lifting optical coupling piece (25); preferably, hold-in range fixed plate (13) are fixed with respectively from top to bottom first flange bearing (12), hollow shaft (29) are fixed on hold-in range fixed plate (13), the opposite side of hold-in range fixed plate (13) is passed through strap clamping plate (24) with first hold-in range (27) fixed connection, lift optical coupling piece (25) are fixed in on hold-in range fixed plate (13).

Further, when needing to go up and down, first step motor (26) are connected with full-automatic biochemical analysis appearance's control system, through action wheel (28) drive hold-in range (27) make it carry out elevating movement, hold-in range fixed plate (13) in the hollow shaft subassembly with hold-in range (27) fixed connection, hollow shaft (1) is driven and is carried out elevating movement.

Specifically, when the rotation action needs to be carried out, the second stepping motor (31) is connected with a control system of a full-automatic biochemical analyzer, the synchronous wheel (18) drives the synchronous belt (19) to enable the synchronous belt wheel XL28 gear (7) to carry out rotation motion, the synchronous rotating plate (9) is fixedly connected with the synchronous belt wheel XL28 gear (7), the hollow shaft (1) is fixedly connected with the synchronous rotating plate (9) through the locking seat (14), and the synchronous rotating plate (9) drives the hollow shaft (1) to carry out synchronous rotation motion together around the central axis of the hollow shaft (1).

The parts completing the lifting action and the rotating action in the embodiment use the linear guide rails with standard specifications, so that the purchasing difficulty and cost of raw materials are reduced, the stability of the structure is improved, the maintenance and the replacement are easy, and the product is simple to upgrade.

Furthermore, the rotation center lines of the synchronous rotating plate (9), the hollow shaft (1) and the concentric shaft (29) are on the same axis, so that the rotation and lifting efficiency of the hollow shaft (1) are ensured, and the efficient operation of the probe mechanism is ensured.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A sampling device for an automatic biochemical analyzer using a linear guide rail, characterized in that it comprises a guide rail assembly, a hollow shaft assembly, a probe holder assembly, a first drive assembly and a second drive assembly.

2 . The sampling device for an automatic biochemical analyzer using a linear guide rail according to claim 1 , wherein the guide rail assembly comprises a synchronous turning plate ( 9 ), a linear guide rail ( 15 ), a locking seat ( 2 . 2 . 14), locking block (16), second flange bearing (17) and concentric shaft (29);

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), and the synchronous rotating plate (9) passes the The second flange bearing (17) is matched and connected with the concentric shaft (29), and the concentric shaft (29) is fixedly connected with the probe fixing frame bottom plate (30). The other side is provided with a hole, which can be fixedly connected with the XL28 tooth (6) of the synchronous pulley;

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 synchronous belt (27) and a lifting optocoupler (25);

The synchronous belt fixing plate (13) is respectively fixed with the first flange bearing (12) up and down, the hollow shaft (29) is fixed on the synchronous belt fixing plate (13), the synchronous belt fixing plate (13) The other side is fixedly connected to the synchronous belt (27) through the cassette plate (24), and the lifting optocoupler (25) is fixed on the synchronous belt fixing plate (13).

3. A sampling device for an automatic biochemical analyzer using a linear guide rail according to claims 1 and 2, characterized in that, the guide rail assembly connects the hollow shaft (1) to the hollow shaft (1) through the locking block (16). ) is fixed on the locking seat (14).

4. The sampling device of an automatic biochemical analyzer using a linear guide rail according to any one of claims 1 to 3, characterized in that the upper and lower holes of the synchronous rotating plate (9), concentric shafts and the centerline of the hollow shaft on the same axis.