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CN204269660U - Sample Transfer Device for Automatic Hematology Analyzer - Google Patents

Sample Transfer Device for Automatic Hematology Analyzer Download PDF

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Publication number
CN204269660U
CN204269660U CN201420629204.7U CN201420629204U CN204269660U CN 204269660 U CN204269660 U CN 204269660U CN 201420629204 U CN201420629204 U CN 201420629204U CN 204269660 U CN204269660 U CN 204269660U
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guide rail
sampling
pressing block
briquetting
sampling needle
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Chinese (zh)
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王波
罗成
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Leadway HK Ltd
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Leadway HK Ltd
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Abstract

The utility model discloses a sample transfer device of full-automatic hematology analyzer, including sampling subassembly and vertical direction moving system. The sampling assembly comprises a sampling needle pressing block and a sampling needle, and the vertical direction movement system comprises a second stepping motor and a guide rail pressing block. The second stepping motor is arranged separately from the sampling assembly. The sampling needle pressing block comprises a guide post, and a hole matched with the guide post is formed in the corresponding position of the guide rail pressing block. When the sampling assembly is contacted with the guide rail pressing block, the guide column is accommodated in the hole, and the sampling assembly is tightly contacted with the pressing block. The stepping motors of the mechanism are all fixed on the instrument frame, the movement is light, the cost is low, the structure is compact, and the mechanism has the functions of opening sampling, closing puncture sampling and conveying samples to specified positions.

Description

全自动血细胞分析仪的样本转移装置Sample Transfer Device for Automatic Hematology Analyzer

技术领域 technical field

本实用新型涉及一种样本转移装置,特别是涉及具有二维自由度运动机构的样本转移装置,可以用于医疗器械行业的全自动血细胞分析仪,具有开放采样、封闭采样以及样本传输等功能。 The utility model relates to a sample transfer device, in particular to a sample transfer device with a two-dimensional freedom motion mechanism, which can be used in automatic blood cell analyzers in the medical equipment industry, and has functions such as open sampling, closed sampling, and sample transmission.

背景技术 Background technique

全自动生化分析仪是在测量人体体液的生理化学、物理性质的检测中应用的比较广的一种仪器。在全自动生化分析仪中,取样装置是非常重要的部分。取样装置需要把液体样本从标本瓶内转移到试剂瓶中,经过充分反应后,再把混合液转移到计数器内进行检测。中国实用新型专利第200520094284.1就公开了一种全自动生化分析仪的取样及搅拌装置。该装置包括悬壁机构及驱动机构,悬壁机构连接在驱动机构上。其中,悬壁机构包括取样搅拌臂、搅拌桨以及取样针,取样搅拌臂的一端与驱动机构连接,另一端为自由端。电机通过电机支架固接在取样搅拌臂上。在取样搅拌臂的自由端下方固接有第一轴承座,其内设有第一滚动轴承,第一滚动轴承上安装有传动轴。在电机上及传动轴的一端均设有带轮,两带轮之间通过传动带相连接。传动轴的另一端与搅拌桨固接。取样针的一端通过取样针支架固接在取样搅拌臂之自由端的上方,另一端插在传动轴及搅拌桨内。 Automatic biochemical analyzer is a widely used instrument in the detection of physiological, chemical and physical properties of human body fluids. In the automatic biochemical analyzer, the sampling device is a very important part. The sampling device needs to transfer the liquid sample from the specimen bottle to the reagent bottle, and after sufficient reaction, transfer the mixed solution to the counter for detection. Chinese Utility Model Patent No. 200520094284.1 discloses a sampling and stirring device for a fully automatic biochemical analyzer. The device includes a hanging wall mechanism and a driving mechanism, and the hanging wall mechanism is connected to the driving mechanism. Wherein, the suspension wall mechanism includes a sampling stirring arm, a stirring paddle and a sampling needle, one end of the sampling stirring arm is connected to the driving mechanism, and the other end is a free end. The motor is fixedly connected to the sampling stirring arm through the motor bracket. A first bearing seat is fixedly connected below the free end of the sampling stirring arm, and a first rolling bearing is arranged in it, and a transmission shaft is installed on the first rolling bearing. Pulleys are arranged on the motor and one end of the drive shaft, and the two pulleys are connected through a transmission belt. The other end of the transmission shaft is fixedly connected with the stirring paddle. One end of the sampling needle is fixed above the free end of the sampling stirring arm through the sampling needle support, and the other end is inserted into the transmission shaft and the stirring paddle.

上述全自动生化分析仪包括一个转动的悬壁,因此仅能绕其立柱在限定的角度内做旋转运动,其活动范围受到限制,不适合某些需要在某个平面内做二维自由度运动的场合。 The above-mentioned automatic biochemical analyzer includes a rotating wall, so it can only rotate around its column within a limited angle, and its range of motion is limited, so it is not suitable for some people who need to do two-dimensional freedom of movement in a certain plane. occasions.

实用新型内容 Utility model content

为了克服上述现有技术中的缺点,本实用新型的目的之一是:提供一种具有二维自由度运动功能的采样装置。所述采样装置包括:机架、水平方向运动系统、垂直方向运动系统、采样组件和传力导轨,水平方向运动系统包括第一步进电机,垂直方向运动系统包括第二步进电机,第一步进电机和第二步进电机分别固定安装在机架上,采样组件包括采样针压块和采样针,传力导轨水平放置并且分别与垂直方向运动系统和采样针压块固定连接,水平方向运动系统驱动采样针在水平方向运动,垂直方向运动系统驱动采样针在垂直方向运动。 In order to overcome the above-mentioned shortcomings in the prior art, one of the objectives of the present utility model is to provide a sampling device with a two-dimensional freedom of movement function. The sampling device includes: a frame, a horizontal motion system, a vertical motion system, a sampling assembly and a force transmission guide rail, the horizontal motion system includes a first stepping motor, the vertical motion system includes a second stepping motor, the first The stepping motor and the second stepping motor are respectively fixedly installed on the rack. The sampling assembly includes a sampling needle pressing block and a sampling needle. The motion system drives the sampling needle to move in the horizontal direction, and the vertical direction motion system drives the sampling needle to move in the vertical direction.

对上述技术方案的进一步改进是:所述水平方向运动系统还包括第一同步带和水平导轨;所述垂直方向运动系统还包括第二同步带、第一导向轴和导轨压块,导轨压块和第二同步带固定连接;所述采样组件还包括采样组件支架和第二导向轴。 A further improvement to the above technical solution is: the horizontal motion system also includes a first synchronous belt and a horizontal guide rail; the vertical motion system also includes a second synchronous belt, a first guide shaft and a guide rail pressing block, and the guide rail pressing block It is fixedly connected with the second synchronous belt; the sampling assembly also includes a sampling assembly bracket and a second guide shaft.

对上述技术方案的进一步改进是:采样组件支架与第一同步带固定连接,采样组件支架与水平导轨的滑块固定;在第一步进电机的驱动下,采样组件在水平导轨的导向作用下进行水平方向运动;传力导轨的滑块和采样针压块固定连接,在第二步进电机的驱动下,采样针压块随着传力导轨作垂直方向运动。 A further improvement to the above technical solution is: the sampling assembly bracket is fixedly connected to the first timing belt, and the sampling assembly bracket is fixed to the slider of the horizontal guide rail; driven by the first stepping motor, the sampling assembly is guided by the horizontal guide rail It moves in the horizontal direction; the slider of the force transmission guide rail is fixedly connected with the sampling needle pressing block, and driven by the second stepping motor, the sampling needle pressing block moves vertically along with the force transmission guide rail.

对上述技术方案的进一步改进是:导轨压块和传力导轨固定连接。 A further improvement to the above technical solution is: the guide rail pressing block is fixedly connected to the force transmission guide rail.

对上述技术方案的进一步改进是:采样针压块包括导向柱,导轨压块设有和导向柱相配合的孔。 A further improvement to the above technical solution is: the sampling needle pressing block includes a guide post, and the guide rail pressing block is provided with a hole matching the guide post.

对上述技术方案的进一步改进是:导向柱为部分圆锥体。 A further improvement to the above technical solution is: the guide column is a partial cone.

对上述技术方案的进一步改进是:还包括光耦开关,所述光耦开光安装在机架上。 A further improvement to the above technical solution is: an optocoupler switch is also included, and the optocoupler switch is installed on the rack.

对上述技术方案的进一步改进是:采样组件支架和导轨压块上分别安装有光耦开关感应片。 A further improvement to the above technical solution is that: an optocoupler switch inductive piece is respectively installed on the sampling component bracket and the guide rail pressing block.

对上述技术方案的进一步改进是:所述的传力导轨和水平导轨相互平行。 A further improvement to the above technical solution is: the force transmission guide rail and the horizontal guide rail are parallel to each other.

对上述技术方案的进一步改进是:采样组件在水平方向上依次运动到采样位、反应池位和计数池位。 A further improvement to the above technical solution is: the sampling component moves to the sampling position, the reaction pool position and the counting pool position sequentially in the horizontal direction.

本实用新型的目的之二是:提供一种全自动血细胞分析仪的样本转移装置,包括采样组件和垂直方向运动系统。所述采样组件包括采样针压块和采样针,所述的垂直方向运动系统包括第二步进电机和导轨压块。第二步进电机与采样组件分离设置。采样针压块包括导向柱,导轨压块在相应位置设有和导向柱配合的孔。当采样组件和导轨压块接触时,导向柱被收容入孔内,采样组件和压块之间紧密接触。 The second purpose of the utility model is to provide a sample transfer device for an automatic blood cell analyzer, which includes a sampling component and a vertical movement system. The sampling assembly includes a sampling needle pressing block and a sampling needle, and the vertical motion system includes a second stepper motor and a guide rail pressing block. The second stepper motor is set separately from the sampling component. The sampling needle pressing block includes a guide post, and the guide rail pressing block is provided with a hole matching the guide post at a corresponding position. When the sampling component is in contact with the pressing block of the guide rail, the guide column is accommodated in the hole, and the sampling component and the pressing block are in close contact.

对上述技术方案的进一步改进是:所述垂直方向运动系统还包括第二同步带、平行于第二同步带的第一导向轴和可以在第一导向轴滑移的导轨压块,导轨压块和第二同步带固定连接。 A further improvement to the above technical solution is: the vertical motion system also includes a second synchronous belt, a first guide shaft parallel to the second synchronous belt, and a guide rail pressing block that can slide on the first guide shaft, and the guide rail pressing block It is fixedly connected with the second synchronous belt.

对上述技术方案的进一步改进是:当采样组件与导轨压块接触时,采样针压块通过导向柱和导轨压块的锥形孔导向结合,共同在第二同步带驱动下,驱动采样针执行试管穿刺和吸取样本动作,当吸样完成后,采样针压块脱开导轨压块,然后带动采样针向水平方向输送样本。 A further improvement to the above technical solution is: when the sampling assembly is in contact with the guide rail pressing block, the sampling needle pressing block is guided and combined through the guide column and the tapered hole of the guide rail pressing block, and together driven by the second synchronous belt, the sampling needle is driven to perform Test tube puncture and sample suction action, when the sample suction is completed, the sampling needle pressing block is disengaged from the guide rail pressing block, and then drives the sampling needle to transport the sample in the horizontal direction.

对上述技术方案的进一步改进是:还包括传力导轨,所述传力导轨的一端与导轨压块刚性连接,传力导轨的另一端与采样针压块固定连接。 A further improvement to the above technical solution is: it also includes a force transmission guide rail, one end of the force transmission guide rail is rigidly connected to the guide rail pressing block, and the other end of the force transmission guide rail is fixedly connected to the sampling needle pressing block.

对上述技术方案的进一步改进是:采样针分别在采样位、反应池位和计数池位停留,其中,采样位比反应池位和计数池位要更加靠近第二步进电机。 A further improvement to the above technical solution is: the sampling needle stops at the sampling position, the reaction pool position and the counting pool position respectively, wherein the sampling position is closer to the second stepping motor than the reaction pool position and the counting pool position.

本实用新型的目的之三是:提供一种全自动生化分析仪。所述全自动生化分析仪包括具有二维自由度运动功能的采样装置。该采样装置包括:机架、水平方向运动系统、垂直方向运动系统、采样组件和传力导轨,水平方向运动系统包括第一步进电机,垂直方向运动系统包括第二步进电机,第一步进电机和第二步进电机分别固定安装在机架上,采样组件包括采样针压块和采样针,传力导轨水平放置并且分别与垂直方向运动系统和采样针压块固定连接,水平方向运动系统驱动采样针在水平方向运动,垂直方向运动系统驱动采样针在垂直方向运动。 The third purpose of the utility model is to provide a fully automatic biochemical analyzer. The automatic biochemical analyzer includes a sampling device with a two-dimensional freedom of movement function. The sampling device includes: a rack, a horizontal motion system, a vertical motion system, a sampling component and a force transmission guide rail, the horizontal motion system includes a first stepping motor, the vertical motion system includes a second stepping motor, and the first step The feeder motor and the second stepping motor are respectively fixedly installed on the rack. The sampling assembly includes a sampling needle pressing block and a sampling needle. The system drives the sampling needle to move in the horizontal direction, and the vertical direction movement system drives the sampling needle to move in the vertical direction.

对上述技术方案的进一步改进是:所述水平方向运动系统还包括第一同步带和水平导轨;所述垂直方向运动系统还包括第二同步带、第一导向轴和导轨压块,导轨压块和第二同步带固定连接;所述采样组件还包括采样组件支架和第二导向轴。 A further improvement to the above technical solution is: the horizontal motion system also includes a first synchronous belt and a horizontal guide rail; the vertical motion system also includes a second synchronous belt, a first guide shaft and a guide rail pressing block, and the guide rail pressing block It is fixedly connected with the second synchronous belt; the sampling assembly also includes a sampling assembly bracket and a second guide shaft.

对上述技术方案的进一步改进是:采样组件支架与第一同步带固定连接,采样组件支架与水平导轨的滑块固定;在第一步进电机的驱动下,采样组件在水平导轨的导向作用下进行水平方向运动;传力导轨的滑块和采样针压块固定连接,在第二步进电机的驱动下,采样针压块随着传力导轨作垂直方向运动。 A further improvement to the above technical solution is: the sampling assembly bracket is fixedly connected to the first timing belt, and the sampling assembly bracket is fixed to the slider of the horizontal guide rail; driven by the first stepping motor, the sampling assembly is guided by the horizontal guide rail It moves in the horizontal direction; the slider of the force transmission guide rail is fixedly connected with the sampling needle pressing block, and driven by the second stepping motor, the sampling needle pressing block moves vertically along with the force transmission guide rail.

对上述技术方案的进一步改进是:导轨压块和传力导轨固定连接。 A further improvement to the above technical solution is: the guide rail pressing block is fixedly connected to the force transmission guide rail.

对上述技术方案的进一步改进是:采样针压块包括导向柱,导轨压块设有和导向柱相配合的孔。 A further improvement to the above technical solution is: the sampling needle pressing block includes a guide post, and the guide rail pressing block is provided with a hole matching the guide post.

对上述技术方案的进一步改进是:导向柱为部分圆锥体。 A further improvement to the above technical solution is: the guide column is a partial cone.

对上述技术方案的进一步改进是:还包括光耦开关,所述光耦开光安装在机架上。 A further improvement to the above technical solution is: an optocoupler switch is also included, and the optocoupler switch is installed on the rack.

对上述技术方案的进一步改进是:采样组件支架和导轨压块上分别安装有光耦开关感应片。 A further improvement to the above technical solution is that: an optocoupler switch inductive piece is respectively installed on the sampling component bracket and the guide rail pressing block.

对上述技术方案的进一步改进是:所述的传力导轨和水平导轨相互平行。 A further improvement to the above technical solution is: the force transmission guide rail and the horizontal guide rail are parallel to each other.

对上述技术方案的进一步改进是:采样组件在水平方向上依次运动到采样位、反应池位和计数池位。 A further improvement to the above technical solution is: the sampling component moves to the sampling position, the reaction pool position and the counting pool position sequentially in the horizontal direction.

本实用新型的有益效果是:传力导轨一端固定在导轨压块上,导轨压块有和传力导轨相配合的凹形槽,同时背部和顶部有螺钉保证刚性连接。传力导轨的第二滑块通过螺钉固定在采样针压块,当同步带带动导轨压块和传力导轨垂直方向运动时,采样针也随之上下运动。水平方向和垂直方向可设置光耦进行定位,从而在特定的位置进行采样和传送样本。采样针压块通过螺纹连接导向柱,导轨压块也在相应位置有与导向柱配合的锥形孔,为了减小试管穿刺时所需的力矩,采样组件水平方向运动到与导轨压块接触,采样针跟随传力导轨共同完成穿刺动作。本运动机构步进电机均固定在仪器机架上,运动轻巧,空间紧凑,输送样本到特定位置功能,对电机的负载力矩要求低,机械噪音小。同时兼容开放采样和穿刺采样,适用血液分析仪和尿液分析仪等医疗器械设备。 The beneficial effect of the utility model is that: one end of the force transmission guide rail is fixed on the guide rail pressing block, and the guide rail pressing block has a concave groove matching with the force transmission guide rail, and at the same time, there are screws on the back and the top to ensure rigid connection. The second slider of the force transmission guide rail is fixed on the sampling needle pressing block by screws, and when the synchronous belt drives the guide rail pressing block and the force transmission guide rail to move vertically, the sampling needle also moves up and down accordingly. The optocoupler can be positioned horizontally and vertically to sample and transmit samples at specific locations. The sampling needle pressing block is connected to the guide column through threads, and the guide rail pressing block also has a tapered hole that matches the guide column at the corresponding position. In order to reduce the torque required for the test tube puncture, the sampling component moves horizontally until it contacts the guide rail pressing block. The sampling needle follows the force transmission guide rail to complete the puncture action together. The stepper motors of this movement mechanism are all fixed on the instrument frame, with light movement, compact space, and the function of transporting samples to specific positions. It has low requirements on the load torque of the motor and low mechanical noise. At the same time, it is compatible with open sampling and puncture sampling, and is suitable for medical equipment such as blood analyzers and urine analyzers.

附图说明 Description of drawings

图1是本实用新型的一种二维自由度运动机构的平面图。 Fig. 1 is a plan view of a two-dimensional freedom motion mechanism of the present invention.

图2是本实用新型的一种二维自由度运动机构的立体图。 Fig. 2 is a perspective view of a two-dimensional freedom motion mechanism of the present invention.

图3是本实用新型的另一种二维自由度运动机构开放采样位置平面图。 Fig. 3 is a plan view of an open sampling position of another two-dimensional freedom motion mechanism of the present invention.

图4是本实用新型的另一种二维自由度运动机构开放采样位置立体图。 Fig. 4 is a perspective view of an open sampling position of another two-dimensional freedom motion mechanism of the present invention.

图5是本实用新型的另一种二维自由度运动机构水平方向运动到达某特定位置的平面图。 Fig. 5 is a plan view of another two-dimensional freedom motion mechanism of the present invention moving in the horizontal direction to a specific position.

图6是本实用新型的另一种二维自由度运动机构垂直方向运动到达另一个某特定位置的平面图。 Fig. 6 is a plan view of another two-dimensional freedom motion mechanism of the present invention moving vertically to another specific position.

图7是本实用新型的另一种二维自由度运动机构水平方向运动到达穿刺位置的平面图。 Fig. 7 is a plan view of another two-dimensional freedom motion mechanism of the present invention moving in the horizontal direction to reach the puncture position.

图8是本实用新型的另一种二维自由度运动机构导向装置剖面示意图。 Fig. 8 is a schematic cross-sectional view of another two-dimensional freedom motion mechanism guiding device of the present invention.

图9是本实用新型的另一种二维自由度运动机构进行试管穿刺的平面图。 Fig. 9 is a plan view of another two-dimensional freedom motion mechanism of the present invention for test tube puncture.

图10是本实用新型的另一种二维自由度运动机构导轨压块104的结构立体图。 FIG. 10 is a structural perspective view of another two-dimensional freedom motion mechanism guide rail pressing block 104 of the present invention.

具体实施方式 Detailed ways

实施例一 Embodiment one

请参阅图1和图2,这是本实用新型采样装置的一种具体实施例。该采样装置由两根水平导向轴2和5完成导向。第一步进电机4驱动同步带3带动采样组件完成水平方向运动(采样组件通过采样组件支架10和同步带3固定连接)。安装在采样组件支架10上的第二步进电机1驱动同步带6带动采样针7在两根垂直导向轴8和9的导向作用下完成垂直方向运动。采样针7在水平和垂直方向的二维自由度运动有助于在血液细胞分析装置中实现试管穿刺、样本吸取和样本运输等功能。 Please refer to Fig. 1 and Fig. 2, which is a specific embodiment of the sampling device of the present invention. The sampling device is guided by two horizontal guide shafts 2 and 5 . The first stepping motor 4 drives the synchronous belt 3 to drive the sampling assembly to complete the horizontal movement (the sampling assembly is fixedly connected to the synchronous belt 3 through the sampling assembly bracket 10 ). The second stepper motor 1 installed on the sampling component bracket 10 drives the synchronous belt 6 to drive the sampling needle 7 to complete the vertical movement under the guidance of two vertical guide shafts 8 and 9 . The two-dimensional freedom movement of the sampling needle 7 in the horizontal and vertical directions helps to realize functions such as test tube puncture, sample suction and sample transportation in the blood cell analysis device.

实施例二 Embodiment two

图3至图10所示的是本实用新型之另一种具有二维自由度运动机构的采样装置。所述二维自由度是指该运动机构或者其中的部件可以沿某个固定或者非固定夹角的二个边所在的方向分别运动。所述固定夹角可以是一百五十度、一百二十度、九十度、六十度、三十度或者其他任何合适的角度。二维自由度的运动轨迹可以是直线、光滑曲线、光滑抛物线、拆线或者其组合。在本实用新型的优选方案中,所述二维自由度是指相互垂直的二条直线方向。更加优选的方案是:所述二维自由度运动包括水平方向的运动部分和垂直方向的运动部分。下面以本实用新型产生水平方向和垂直方向的二维自由度运动作为本实用新型的具体实施例之一来阐述本实用新型之具体实施方案。实现其他角度和方向的二维自由度运动的具体实施方案可以由此类推得到。 Figures 3 to 10 show another sampling device of the present invention with a two-dimensional freedom motion mechanism. The two-dimensional degree of freedom means that the motion mechanism or its components can move respectively along the directions of two sides of a certain fixed or non-fixed angle. The fixed angle may be 150 degrees, 120 degrees, 90 degrees, 60 degrees, 30 degrees or any other suitable angle. The motion trajectory of two-dimensional degrees of freedom may be a straight line, a smooth curve, a smooth parabola, a stitch or a combination thereof. In a preferred solution of the present invention, the two-dimensional degrees of freedom refer to two straight line directions perpendicular to each other. A more preferred solution is: the two-dimensional freedom movement includes a movement part in the horizontal direction and a movement part in the vertical direction. The specific implementation of the utility model will be described below by taking the two-dimensional freedom movement generated by the utility model in the horizontal direction and the vertical direction as one of the specific embodiments of the utility model. Specific implementations for realizing two-dimensional freedom motions in other angles and directions can be obtained by analogy.

请参阅图3、图4和图5,水平方向运动装置包括第一步进电机116(主机被遮挡而仅露出转轴)、第一同步带109、第一同步带轮113、水平导轨108和采样组件99。所述采样组件99包括采样组件支架112、固定至支架112的第二导向轴115、套在第二导向轴115上并可以沿第二导向轴115平行滑动的采样针压块114和固定至采样针压块114的采样针111等。第一步进电机116通过螺钉、螺栓或铆钉等固定在采样装置机架100上。第一步进电机116的转轴与第一同步带轮113作同步转动。第一同步带轮113上安装有第一同步带109。优选地,第一同步带轮113的外轮廓为齿轮,第一同步带109为与该齿轮相匹配的齿轮带。第一同步带109被第一同步带轮113驱动作水平方向的运动。采样组件支架112通过螺钉和夹板(未图示)固定至第一同步带109,并且与第一同步带109保持同步运动。在采样组件支架112上固定有至少一个第一滑块118。在采样装置机架100上固定有至少一个水平导轨108。所述第一滑块118与所述水平导轨108滑动配合。在第一步进电机116驱动第一同步带109运动的过程中,第一同步带109驱动采样组件支架112(连同整个采样组件99)沿着水平导轨108作水平方向的运动,从而实现了该装置在水平方向的运动。 Referring to Fig. 3, Fig. 4 and Fig. 5, the horizontal direction motion device includes a first stepper motor 116 (the main engine is covered and only the rotating shaft is exposed), a first synchronous belt 109, a first synchronous pulley 113, a horizontal guide rail 108 and a sampling Component 99. The sampling assembly 99 includes a sampling assembly bracket 112, a second guide shaft 115 fixed to the bracket 112, a sampling needle pressure block 114 that is sleeved on the second guide shaft 115 and can slide in parallel along the second guide shaft 115, and fixed to the sampling unit. The sampling needle 111 of the needle pressing block 114 and the like. The first stepper motor 116 is fixed on the sampling device frame 100 by screws, bolts or rivets. The rotating shaft of the first stepper motor 116 rotates synchronously with the first synchronous pulley 113 . The first synchronous belt 109 is installed on the first synchronous pulley 113 . Preferably, the outer contour of the first synchronous pulley 113 is a gear, and the first synchronous belt 109 is a gear belt matching the gear. The first synchronous belt 109 is driven by the first synchronous pulley 113 to move in the horizontal direction. The sampling assembly bracket 112 is fixed to the first timing belt 109 through screws and splints (not shown), and keeps moving synchronously with the first timing belt 109 . At least one first slider 118 is fixed on the sampling assembly bracket 112 . At least one horizontal guide rail 108 is fixed on the sampling device rack 100 . The first sliding block 118 is slidingly matched with the horizontal guide rail 108 . When the first stepping motor 116 drives the first synchronous belt 109 to move, the first synchronous belt 109 drives the sampling assembly bracket 112 (together with the entire sampling assembly 99) to move horizontally along the horizontal guide rail 108, thereby realizing the Movement of the device in the horizontal direction.

如图4所示,与传力导轨101滑动连接的第二滑块119通过螺钉与采样针压块114固定连接。传力导轨101应当与水平导轨108相互平行,因此,当第一同步带109驱动采样组件支架112(连同整个采样组件99)沿着水平导轨108作水平方向的运动时,采样针压块114在垂直方向保持不发生位移。 As shown in FIG. 4 , the second sliding block 119 slidably connected to the force transmission guide rail 101 is fixedly connected to the sampling needle pressing block 114 through screws. The force transmission guide rail 101 should be parallel to the horizontal guide rail 108. Therefore, when the first synchronous belt 109 drives the sampling assembly support 112 (together with the entire sampling assembly 99) to move horizontally along the horizontal guide rail 108, the sampling needle pressing block 114 The vertical direction remains unchanged.

如图3和4所示,垂直方向运动装置包括第二步进电机103、第二同步带105、第二同步带轮106、导轨压块104和传力导轨101。第二同步带105被第二步进电机103的动力输出轴和第二同步带轮106绷紧着,并且跟随第二步进电机做同步运动。优选地,第二同步带轮106是齿轮,第二同步带105为与同步带轮相匹配的齿轮带。传力导轨101被导轨压块104固定至第二同步带105,并且与第二同步带105一起同步运动。采样针压块114通过其上的第二滑块119与传力导轨101滑动配合,从而可在传力导轨101上水平滑动。传力导轨101与水平导轨108和第一同步带109相互水平平行。在机架100上固定有第一导向轴107,导轨压块104被安装至所述第一导向轴107,并且可以在第一导向轴107上垂直滑动。在采样组件支架112上固定有第二导向轴115,采样针压块114被安装至所述第二导向轴115,并且可以在第二导向轴115上垂直滑动。所述第一导向轴107、第二导向轴115和第二同步带105相互垂直平行。在第二步进电机103启动时,第二同步带105跟随第二步进电机103做同步运动。由于第二同步带105与导轨压块104和传力导轨101是固定连接的,因此,传力导轨101被第二步进电机103驱动在垂直方向做上下运动。 As shown in FIGS. 3 and 4 , the vertical movement device includes a second stepper motor 103 , a second synchronous belt 105 , a second synchronous pulley 106 , guide rail pressing blocks 104 and force transmission guide rails 101 . The second synchronous belt 105 is tightened by the power output shaft of the second stepper motor 103 and the second synchronous pulley 106, and moves synchronously with the second stepper motor. Preferably, the second synchronous pulley 106 is a gear, and the second synchronous belt 105 is a gear belt matching the synchronous pulley. The force transmission guide rail 101 is fixed to the second synchronous belt 105 by the guide rail pressing block 104 and moves synchronously with the second synchronous belt 105 . The sampling needle pressing block 114 is slidingly matched with the force transmission guide rail 101 through the second slider 119 thereon, so that it can slide horizontally on the force transmission guide rail 101 . The power transmission guide rail 101 is horizontally parallel to the horizontal guide rail 108 and the first synchronous belt 109 . A first guide shaft 107 is fixed on the frame 100 , and the guide rail pressing block 104 is mounted on the first guide shaft 107 and can slide vertically on the first guide shaft 107 . A second guide shaft 115 is fixed on the sampling assembly bracket 112 , and the sampling needle pressing block 114 is mounted on the second guide shaft 115 and can slide vertically on the second guide shaft 115 . The first guide shaft 107 , the second guide shaft 115 and the second synchronous belt 105 are vertical and parallel to each other. When the second stepping motor 103 starts, the second synchronous belt 105 moves synchronously with the second stepping motor 103 . Since the second synchronous belt 105 is fixedly connected with the guide rail pressing block 104 and the force transmission guide rail 101 , the force transmission guide rail 101 is driven by the second stepping motor 103 to move up and down in the vertical direction.

请参阅图3和图4,由于导向的需要,第一导向轴107和第二导向轴115以及第二同步带105需要垂直平行放置。采样针压块114和导轨压块104内部装有直线轴承(未图示)可以分别在第二导向轴115和第一导向轴107上垂直滑动。导轨压块104通过螺钉和夹板(未图示)将导轨压块104和第二同步带105的相对位置固定。导轨压块104设有凹形槽121(见图10),所述传力导轨101被收容在该凹形槽121内,并且通过螺钉使导轨压块104与传力导轨101固定连接。如前所述,滑动连接至传力导轨101的第二滑块119和采样针压块114固定连接,如此,传力导轨101便同时连接导轨压块104和采样针压块114。采样针压块114和导轨压块104具有相同或者相类似的结构。当第二同步带105在第二步进电机103(固定安装在机架上)的驱动下作垂直方向运动时,导轨压块104在第一导向轴107和第二导向轴115的导向作用下,通过传力导轨101间接带动采样针压块114做垂直方向的往返运动。由于采样针111与采样针压块114是固定连接的,如此,采样针111就可以在第二同步带105的带动下,跟随传力导轨101,做垂直方向的升降运动,从而完成吸取液体样本和传送液体样本的操作。 Please refer to FIG. 3 and FIG. 4 , due to the requirement of guidance, the first guide shaft 107 and the second guide shaft 115 and the second synchronous belt 105 need to be vertically and parallelly placed. The sampling needle pressing block 114 and the guide rail pressing block 104 are equipped with linear bearings (not shown) inside, which can slide vertically on the second guide shaft 115 and the first guide shaft 107 respectively. The guide rail pressing block 104 fixes the relative positions of the guide rail pressing block 104 and the second synchronous belt 105 through screws and splints (not shown). The guide rail pressing block 104 is provided with a concave groove 121 (see FIG. 10 ), the force transmission guide rail 101 is accommodated in the concave shape groove 121 , and the guide rail pressing block 104 is fixedly connected with the force transmission guide rail 101 by screws. As mentioned above, the second sliding block 119 slidably connected to the force transmission guide rail 101 is fixedly connected to the sampling needle pressing block 114 , so that the force transmission guide rail 101 is connected to the guide rail pressing block 104 and the sampling needle pressing block 114 at the same time. The sampling needle pressing block 114 and the guide rail pressing block 104 have the same or similar structure. When the second synchronous belt 105 moves vertically under the drive of the second stepper motor 103 (fixed on the frame), the guide rail pressing block 104 is guided by the first guide shaft 107 and the second guide shaft 115 , through the force transmission guide rail 101 to indirectly drive the sampling needle pressing block 114 to do vertical reciprocating motion. Since the sampling needle 111 is fixedly connected to the sampling needle pressure block 114, the sampling needle 111 can be driven by the second synchronous belt 105, follow the force transmission guide rail 101, and perform a vertical lifting movement, thereby completing the suction of liquid samples and the operation of transferring liquid samples.

综上所述,当第二步进电机103不工作、第一步进电机116工作时,采样组件99就可以在水平方向上运动到指定位置,如采样位、反应池位、计数池位等。当第一步进电机116不工作、第二步进电机103工作时,采样针111就可以在第二同步带105的带动下跟随传力导轨101做垂直方向的升降运动。水平方向运动和垂直方向运动的精确定位依靠安装在机架100上的数个感应光耦102来实现定位。光耦的工作原理是:当感应片遮挡住光耦时就会向控制系统发出开关信号。因此,采样组件支架112和导轨压块104都分别装有一个感应钢片(未图示)。请参阅图10,导轨压块104设有和传力导轨101相配合的凹槽121,凹槽上方有螺钉120顶紧导轨,正面有两颗螺钉和导轨保证连接可靠。传力导轨101的表面和水平导轨108保持平行。传力导轨101有两个作用:a、对采样组件实施水平导向;b、在垂直方向上传递力矩给采样组件进行穿刺试管。 In summary, when the second stepping motor 103 is not working and the first stepping motor 116 is working, the sampling assembly 99 can move to a specified position in the horizontal direction, such as a sampling position, a reaction pool position, a counting pool position, etc. . When the first stepping motor 116 is not working and the second stepping motor 103 is working, the sampling needle 111 can be driven by the second synchronous belt 105 to follow the force transmission guide rail 101 to do vertical lifting motion. The precise positioning of the movement in the horizontal direction and the movement in the vertical direction depends on several inductive optocouplers 102 installed on the frame 100 to achieve positioning. The working principle of the optocoupler is: when the sensor covers the optocoupler, it will send a switch signal to the control system. Therefore, both the sampling assembly bracket 112 and the guide rail pressing block 104 are respectively equipped with an induction steel sheet (not shown). Referring to Fig. 10 , the guide rail pressing block 104 is provided with a groove 121 matched with the force transmission guide rail 101, above the groove there are screws 120 to tighten the guide rail, and there are two screws and the guide rail on the front to ensure reliable connection. The surface of the force transmission guide rail 101 is kept parallel to the horizontal guide rail 108 . The force transmission guide rail 101 has two functions: a. to guide the sampling assembly horizontally; b. to transmit torque to the sampling assembly in the vertical direction to puncture the test tube.

在吸取液体样本时,采样针有时候需要刺穿装有液体样本的试管盖,因此,需要对采样针施加一定的推力。请参阅图7至图10所示,为了达到较佳的刺穿效果,应当使采样组件尽可能地接近导轨压块104,从而尽量减小传力导轨101产生的力矩。为了进一步减小传力导轨101在刺穿试管盖时所承受的压力,本实用新型还额外设计了一个导向柱110。具体地说,在采样针压块104面对导轨压块104的一面突出一个导向柱110。所以导向柱110可以与采样针压块104一体设计,也可以通过螺纹孔或者其他方式与采样针压块104固定连接。该导向柱110可以被设计成圆柱体或者削去尖部的圆锥体,也可以是横截面是梯形的任何形体。导轨压块104也在相应位置开有和导向柱110外形相配合的锥形孔或者其他形状的孔122。当采样组件和导轨压块104接触时,导向柱110插入压块104上的孔122并且保持一定的紧密配合。为了减小试管穿刺时所需的力矩,采样组件水平方向运动到与导轨压块104接触时,采样针压块114主要通过导向柱110和导轨压块104导向结合,在第二同步带105的拉动下,导轨压块104通过导向柱110驱动采样针压块114向下运动。采样针压块114进一步驱动采样针111向下移动,从而执行穿刺试管盖和吸取样本的动作。当吸样完成后,采样针压块114可顺利脱开导轨压块104,然后带动采样针111向水平方向输送样本至反应池位。 When drawing a liquid sample, the sampling needle sometimes needs to pierce the cap of the test tube containing the liquid sample, therefore, a certain pushing force needs to be applied to the sampling needle. Please refer to FIG. 7 to FIG. 10 , in order to achieve a better piercing effect, the sampling assembly should be as close as possible to the guide rail pressing block 104 , so as to minimize the moment generated by the force transmission guide rail 101 . In order to further reduce the pressure on the force transmission guide rail 101 when piercing the test tube cover, the utility model additionally designs a guide column 110 . Specifically, a guide column 110 protrudes from the side of the sampling needle pressing block 104 facing the guide rail pressing block 104 . Therefore, the guide column 110 can be integrally designed with the sampling needle pressing block 104, or can be fixedly connected with the sampling needle pressing block 104 through a threaded hole or other methods. The guide post 110 can be designed as a cylinder or a cone with the tip cut off, or any shape with a trapezoidal cross section. The guide rail pressing block 104 is also provided with tapered holes or holes 122 of other shapes matching the shape of the guide post 110 at corresponding positions. When the sampling assembly is in contact with the pressure block 104 of the guide rail, the guide post 110 is inserted into the hole 122 on the pressure block 104 and maintains a certain tight fit. In order to reduce the torque required for test tube puncture, when the sampling assembly moves horizontally to contact with the guide rail pressing block 104, the sampling needle pressing block 114 is mainly guided and combined by the guide column 110 and the guide rail pressing block 104. Under pulling, the guide rail pressing block 104 drives the sampling needle pressing block 114 to move downward through the guide post 110 . The sampling needle pressing block 114 further drives the sampling needle 111 to move downwards, so as to perform actions of piercing the test tube cap and aspirating the sample. After the sampling is completed, the sampling needle pressing block 114 can be disengaged from the guide rail pressing block 104 smoothly, and then the sampling needle 111 is driven to transport the sample to the reaction pool in a horizontal direction.

本实用新型的采样装置和采样方法具有广泛的应用价值,例如可用于血球分析仪等领域。 The sampling device and sampling method of the utility model have wide application value, for example, they can be used in fields such as blood cell analyzers.

以上内容是结合具体的实施方式对本实用新型所作的进一步详细说明,不能认定本实用新型的具体实施只局限于这些说明。对于本实用新型所属技术领域的普通技术人员来说,在不脱离本实用新型构思的前提下,还可以做出若干简单推演或替换(例如本实例中传力导轨使用的是直线滚珠导轨,可将其换成滚轮式线性滑轨等),都应当视为属于本实用新型的保护范围。 The above content is a further detailed description of the utility model in conjunction with specific implementation methods, and it cannot be determined that the specific implementation of the utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the utility model belongs, on the premise of not departing from the concept of the utility model, some simple deduction or replacement can also be made (for example, in this example, the force transmission guide rail uses a linear ball guide rail, which can be Change it into a roller type linear slide rail, etc.), all should be regarded as belonging to the protection scope of the present utility model.

Claims (5)

1. the sample transfer device of an Automatic Blood Cell Analyzer, it is characterized in that: comprise sampling component and movement in vertical direction system, described sampling component comprises sampling needle briquetting and sampling needle, described movement in vertical direction system comprises the second stepper motor and guide rail briquetting, and the second stepper motor is separated setting with sampling component; Sampling needle briquetting comprises guidepost, and guide rail briquetting is provided with the hole coordinated with guidepost in relevant position, when sampling component contacts with guide rail briquetting, guidepost is accommodated in hand-hole, close contact between sampling component and briquetting.
2. device according to claim 1, it is characterized in that, described movement in vertical direction system also comprises the second Timing Belt, be parallel to first axis of guide of the second Timing Belt and can at the guide rail briquetting of the first axis of guide slippage, and guide rail briquetting is fixedly connected with the second Timing Belt.
3. device according to claim 1, it is characterized in that, when sampling component contacts with guide rail briquetting, sampling needle briquetting is combined by the bellmouth guiding of guidepost and guide rail briquetting, jointly under the second Timing Belt drives, sampling needle is driven to perform puncture of test tube and draw sample action, after suction sample completes, guide rail briquetting thrown off by sampling needle briquetting, then drives sampling needle to carry sample to horizontal direction.
4. device according to claim 1, is characterized in that, also comprises power transmission guide rail, and one end and the guide rail briquetting of described power transmission guide rail are rigidly connected, and the other end of power transmission guide rail is fixedly connected with sampling needle briquetting.
5. device according to claim 1, is characterized in that, sampling needle stops in sample bits, reaction tank position and counting chamber position respectively, and wherein, sample bits will more near the second stepper motor than reaction tank position and counting chamber position.
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CN104865397A (en) * 2015-05-23 2015-08-26 深圳德夏生物医学工程有限公司 Portable multi-channel biochemical and specific protein analyzer
WO2016065702A1 (en) * 2014-10-28 2016-05-06 利多(香港)有限公司 Full-automatic biochemical analyzer, and sampling device and sampling method thereof
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CN110456092A (en) * 2019-10-11 2019-11-15 潍坊市康华生物技术有限公司 A kind of sample rack conveying device

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CN104865396A (en) * 2015-05-23 2015-08-26 深圳德夏生物医学工程有限公司 Multi-channel biochemical and specific protein analysis instrument provided with linearly-arranged lamp strips and linearly-arranged silicon photocells
CN104865397A (en) * 2015-05-23 2015-08-26 深圳德夏生物医学工程有限公司 Portable multi-channel biochemical and specific protein analyzer
CN104865396B (en) * 2015-05-23 2018-03-16 深圳德夏生物医学工程有限公司 Straight line lamp bar silicon photocell straight line multi-channel biochemical and specific protein analyzer
CN109900526A (en) * 2019-03-27 2019-06-18 利多(香港)有限公司 A kind of vertical driving mechanism, sampling apparatus and sample analyser
CN110456092A (en) * 2019-10-11 2019-11-15 潍坊市康华生物技术有限公司 A kind of sample rack conveying device
CN110456092B (en) * 2019-10-11 2020-06-09 潍坊市康华生物技术有限公司 Sample frame conveying device

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