CN204422556U - Loading device and there is the coagulo meter of this loading device - Google Patents

Abstract

The utility model is suitable for the technical field of sample detection and analysis, and provides a sample adding device and a hemagglutination meter with the sample adding device. The sampling device includes first and second transverse sliding parts, the first transverse sliding part includes a first carriage and a first drive part for driving the first carriage, the second transverse sliding part is connected to the first carriage, and the second transverse sliding part is connected to the first carriage. The two transverse sliding parts include a second carriage and a second driving part for driving the second carriage. The second carriage is connected with at least two groups of sample loading parts that can act independently. The sliding frame is used for clamping the fixed frame of the needle tube and the longitudinal driving part connected to the second sliding frame and used for driving the fixed frame to slide longitudinally relative to the second sliding frame. The coagulometer has the above-mentioned sample adding equipment. The sample adding device provided by the utility model and the hemagglutination meter provided with the sample adding device have a high degree of automation and are not easy to misoperate, and the device has high reliability, simple and reliable structure, and no redundancy.

Description

Sample adding device and hemagglutination meter with the sample adding device

technical field

The utility model belongs to the technical field of sample detection and analysis, in particular to a sample adding device and a hemagglutination meter with the sample adding device.

Background technique

In the field of sample detection and analysis, it is often necessary to move samples from one area to another while transferring reagents from one area to another. The most common manual approach is to use a specific pipetting device to transfer the sample to the target area, use another pipetting device to transfer the detection reagent to the target area, and then perform the detection. The disadvantage of this method is that manual operation is inefficient and easy to misuse.

In the prior art, general-purpose automatic sample loading equipment mainly has two forms: a rotating sample loading arm and a sample loading arm moving along the XYZ three axes. For example, some rotating sample loading arms provide a sample loading device in the form of a rotating mechanical arm, which can realize the combined movement of horizontal rotation and up and down movement, but because the radius is fixed, the area reached is also within the corresponding radius. On the trajectory, other areas cannot be reached, so there is a large sample dead zone in this method. In order to improve efficiency and avoid cross-contamination of samples and reagents, it is necessary to arrange two sets of arms with repeated structures.

In the prior art, there is also a method of adding a horizontal sample loading arm that can effectively reduce the working dead zone, but this structure adds a set of transmission structures, which makes the sample loading arm more complicated. Another automatic sample loading structure uses a mechanism that moves in the XYZ direction instead of manual operation, but the above-mentioned problems also exist with a single robotic arm; while two robotic arms that move in the XYZ direction have redundant and complex structures.

To sum up, the automatic sample adding equipment in the prior art has the problems of low efficiency, redundant structure and poor reliability.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a sample adding device with high efficiency, simple structure, no redundancy and high reliability.

The utility model is achieved in the following way: a sample adding device, comprising a first transverse sliding part and a second transverse sliding part, the first transverse sliding part comprises a first carriage and is used to drive the first carriage along the The first driving part that slides in the first transverse direction, the second transverse sliding part is connected to the first carriage, the second transverse sliding part includes a second carriage and is used to drive the second carriage along the The second driving part that slides in the second transverse direction, the second carriage is connected with at least two groups of sample adding parts that can act independently, and the sample adding parts include slidingly connected to the second carriage and used for clamping The fixing frame of the needle-holding tube and the longitudinal driving part connected to the second sliding frame and used to drive the fixing frame to slide longitudinally relative to the second sliding frame.

Optionally, the longitudinal driving part includes a rotating motor and a longitudinal transmission mechanism connected between the rotating motor and the fixing frame, or the longitudinal driving part is a linear motor.

Optionally, the rotating motor is fixedly connected to the second carriage, the longitudinal transmission mechanism includes a screw rod and a threaded hole provided on the fixing frame, the rotating shaft of the motor is connected to the screw rod, the The screw rod is threadedly connected to the threaded hole of the fixing frame; or, the longitudinal transmission mechanism is a rack and pinion transmission mechanism.

Optionally, the second sliding frame is fixedly connected with a longitudinal guide rail, and the fixing frame is slidably connected with the longitudinal guide rail.

Optionally, an anti-collision device that can stop when the needle tube is bumped is provided between the needle tube and the fixing frame.

Optionally, the anti-collision device includes an elastic pressing structure for elastically pressing the needle tube to the fixing frame, and the elastic pressing structure includes a linkage piece connected to the needle tube and elastically pressing on the The elastic member of the linkage piece, the anti-collision device further includes a detection component connected between the linkage piece and the fixing frame.

Optionally, one set of the sample adding parts is a sample adding part for holding a sample needle, and the other set of the sample adding parts is a reagent sample adding part for holding a reagent needle, and the sample The sample application part is arranged adjacent to the reagent sample application part.

Optionally, the sample adding part and/or the reagent adding part is provided with a distance adjusting structure for adjusting the left-right distance and the front-to-back distance between the sample needle and the reagent needle.

Optionally, the fixing frame in the sample adding part includes a sample needle fixing frame and a sample needle fixing seat, and the adjustment structure includes a first strip-shaped hole opened in the sample needle fixing seat and pierced through the The first strip hole is connected to the first adjusting part of the sample needle holder.

Optionally, the fixing frame in the reagent sample adding part includes a reagent needle frame body and a reagent needle fixing seat, and the adjustment structure also includes a second strip-shaped hole opened in the reagent needle fixing seat and pierced through the reagent needle fixing seat. The second adjusting member connected to the second strip-shaped hole and connected to the reagent needle holder body, the extending direction of the first strip-shaped hole and the extending direction of the second strip-shaped hole are located in the horizontal direction and are perpendicular to each other.

Optionally, the first driving part includes a first driving part and a first transverse transmission mechanism, the first driving part is connected to the first base frame, and the first transverse transmission mechanism is connected to the first driving part between the first sliding frame; the first transverse sliding part further includes a first base frame, the first base frame includes a first optical axis, and the first sliding frame is slidably connected to the first optical axis, The first pedestal is connected with a first driving part, the first driving part is a motor, and a first transverse transmission mechanism is connected between the first driving part and the first carriage; the first transverse The transmission mechanism includes a first toothed belt driven by the first driving member, and the first carriage is fixedly connected to the first toothed belt; or, the transverse transmission mechanism includes a toothed belt driven by the first driving member Driven by the first rack, the first carriage is fixedly connected to the first rack; or, the transverse transmission mechanism includes a first screw driven by the first drive member, the first slide The frame is threadedly connected to the first lead screw.

Optionally, the second driving part includes a second driving part and a second transverse transmission mechanism, the second driving part is connected to the first carriage, and the second transverse transmission mechanism is connected to the second driving part Between the second sliding frame, the second transverse sliding part includes a second base frame, the second base frame includes a second optical axis, and the second sliding frame is slidably connected to the second optical axis; The second transverse transmission mechanism comprises a second toothed belt driven by the second driving member, and the second carriage is fixedly connected to the second toothed belt; or, the transverse transmission mechanism comprises a second toothed belt driven by the A second rack driven by a second driving member, the second carriage is fixedly connected to the second rack; or, the transverse transmission mechanism includes a second screw rod driven by the second driving member, so The second carriage is screwed to the second threaded rod.

Optionally, the second optical axis includes a second upper optical axis and a second lower optical axis, the second upper optical axis and the second lower optical axis are arranged at a parallel distance, and the second pedestal further includes at least one A support rod, the axis of the support rod is parallel to the axes of the second upper optical axis and the second lower optical axis but not on the same plane.

Optionally, the needle tube is connected with a liquid level detection module.

The utility model also provides a hemagglutination instrument, which has the above-mentioned sample adding equipment.

The sample adding device provided by the utility model and the blood coagulation instrument provided with the sample adding device are equipped with at least two longitudinal driving parts that can be linked by the first horizontal sliding part and the second horizontal sliding part and can independently move up and down , can avoid the risk of cross-contamination between reagents and samples, increase the efficiency of aspiration and sample addition, and avoid the risk of cross-contamination between samples and reagents; the anti-collision function can avoid the problem of sample needle breaking; the liquid level detection function can increase suction Liquid and cleaning efficiency, the whole scheme has a simple structure, perfect and reliable functions, high sampling efficiency, can effectively improve the detection efficiency of samples, high degree of automation and is not easy to misuse, high equipment reliability and simple and reliable structure, no redundancy.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the utility model more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the utility model , for those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative work.

Fig. 1 is the front view of the sample loading equipment provided by the embodiment of the present invention;

Fig. 2 is the right side view of the sample loading device provided by the embodiment of the present invention;

Fig. 3 is a partial plan view of the anti-collision device in the sample loading device provided by the embodiment of the present invention;

Fig. 4 is a three-dimensional schematic diagram of a sample adding device provided by an embodiment of the present invention;

Fig. 5 is a partial schematic diagram of a sample adding device provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

It should also be noted that the orientation terms such as left, right, up, and down in this embodiment are only relative concepts or refer to the normal use state of the product, and should not be regarded as limiting.

As shown in Figures 1 to 5, a sample loading device provided by the embodiment of the present invention can be used in the field of sample analysis and detection, including:

A first transverse sliding part and a second transverse sliding part, the first transverse sliding part comprises a first carriage 4 and a first driving part for driving the first carriage 4 to slide along a first transverse direction, the first transverse direction It can be in the horizontal X direction, the first driving component is connected to the first carriage 4 and can drive the first carriage 4 and the components connected to the first carriage 4 to slide in the horizontal X direction as a whole. The second horizontal sliding component is connected to the first sliding frame 4 , and the second horizontal sliding component and components on it can slide along the horizontal X direction with the first sliding frame 4 . The second transverse sliding part includes a second carriage 12 and a second driving part for driving the second carriage 12 to slide along a second transverse direction. The second transverse direction may be a horizontal Y direction, and the first transverse direction and the second transverse direction The directions can be perpendicular to each other. The second driving component is connected to the second carriage 12 and drives the second carriage 12 and the components connected to the second carriage 12 to slide relative to the first carriage 4 in the horizontal Y direction. The second sliding frame 12 is connected with at least two groups of sample loading parts that can act independently, and the sample loading parts include a fixed frame 11 that is slidably connected to the second sliding frame 12 and is used to clamp the needle tube, and is connected to the second sliding frame 12 and A longitudinal driving component for driving the fixed frame 11 to slide longitudinally (along the Z direction) relative to the second sliding frame 12 . In this embodiment, the longitudinal direction is defined as the Z direction, and the longitudinal direction is perpendicular to the above-mentioned first transverse direction and the second transverse direction. The longitudinal driving part slides up and down by driving the fixing frame 11, so that the needle tube can complete functions such as liquid absorption and liquid injection. The needle tube can be a sample needle, a reagent needle, etc. For controlling the sample needle 8 and the reagent needle 7, of course, it can be understood that the sample adding part can also be provided with three or more than three heads, each of which can control at least one needle tube (sample needle 8 or reagent needle 7, etc.) Longitudinal movement, that is, each sample adding part can be connected with at least one needle tube. Moreover, by arranging at least two independently movable sample adding parts, at least one of the sample adding parts can be connected with a sample needle 8 for taking and placing samples; at least one of the sample adding parts can be connected with a reagent needle 7 for It is used for taking and placing reagents. With such an arrangement, the sample needle 8, the reagent needle 7 or other sample adding parts can share the first horizontal sliding part and the second horizontal sliding part, the structure is simple and reliable, and redundancy is avoided, and each sample adding part can act independently, Each needle tube can move up and down independently, and there is no dead zone for sample addition, and liquid absorption is carried out separately, avoiding the hidden danger of cross contamination, high degree of automation and not easy to misuse, high equipment reliability and simple and reliable structure, without redundancy.

Specifically, the longitudinal driving part includes a rotating motor 5 and a longitudinal transmission mechanism connected between the rotating motor 5 and the fixed frame 11, or, as an alternative to the rotating motor, the longitudinal driving part can also be a linear motor. Each longitudinal driving component can drive the corresponding fixed frame 11 to slide up and down reliably relative to the second sliding frame 12 , so that the sample needle 8 and the reagent needle 7 can slide reliably and independently.

In this embodiment, the rotary motor 5 is fixedly connected to the second carriage 12, the longitudinal transmission mechanism includes a screw rod 15 and a threaded hole 110 arranged on the fixed frame 11, the rotating shaft of the motor is connected to the screw rod 15, and its transmission is stable, reliable and accurate. high. The rotating shaft of the motor and the screw mandrel 15 can be connected by an elastic coupling 14 . The screw rod 15 is threadedly connected to the threaded hole 110 of the fixed frame 11; or, the longitudinal transmission mechanism is a linear motion mechanism such as a rack and pinion transmission mechanism, etc., and can also be driven by a transmission belt, a transmission chain, and the like.

Specifically, the second sliding frame 12 is fixedly connected to the longitudinal guide rail 16 , and the fixed frame 11 is slidably connected to the longitudinal guide rail 16 . Each group of sample adding parts can be provided with an independent fixed frame 11 correspondingly, and each fixed frame 11 can be provided with at least one independent longitudinal guide rail 16 correspondingly, so that the fixed frame 11 and the sample needle 8 connected to the fixed frame 11 , The reagent needle 7 can slide up and down independently.

Specifically, an anti-collision device that can stop when the needle tube (sample needle 8, reagent needle 7) is collided is provided between the needle tube and the fixing frame 11, so as to avoid loss.

Specifically, the anti-collision device includes an elastic compression structure for elastically compressing the needle tube to the fixed frame 11. The elastic compression structure includes a linkage piece 17 connected to the needle tube and an elastic member 20 elastically pressed against the linkage piece 17. Member 20 may be a spring. Specifically, the fixed frame 11 is connected with anti-collision screws 21 , the anti-collision screws 21 pass through the linkage piece 17 and the elastic member 20 , the springs cover the anti-collision screws 21 , and the springs press the linkage piece 17 on the fixed frame 11 . The anti-collision device also includes a detection component connected between the linkage plate 17 and the fixed frame 11, and the external controller can control the longitudinal driving component through the detection signal of the detection component. When the needle tube (sample needle 8, reagent needle 7) is collided, the state of the detection part can change, and then the related motion actuators are controlled by an external controller, which can effectively avoid the risk of the needle being broken due to machine misoperation. Under normal conditions, the linkage piece 17 is attached to the fixed frame 11. When the needle tube is hit, under the action of the needle tube, the linkage piece 17 is displaced relative to the fixed frame 11 and compresses the spring, and the detection component can be triggered by the action of the linkage piece 17.

Specifically, the detection component includes an optocoupler 18 arranged on the fixed frame 11 , and the linkage plate 17 is blocked between the signal sending end and the receiving end of the optocoupler 18 . The detection component can also adopt methods such as acceleration sensor or trigger micro switch, all of which belong to the protection scope of the present utility model. The linkage sheet 17 can be used as an optocoupler blocking sheet.

In this embodiment, one group of sample application parts is a sample application part for clamping a sample needle 8, and the other group of sample application parts is a reagent sample application part for clamping a reagent needle 7, and the sample application part It is set adjacent to the reagent sampling part and can act independently.

Specifically, the sample adding part and/or the reagent adding part is provided with a spacing adjustment structure for adjusting the distance between the sample needle 8 and the reagent needle 7, as well as the distance between the left and right and the front and back, so as to adapt to different usage occasions and have good product versatility.

Specifically, the fixing frame 11 in the sample adding part includes a sample needle fixing frame 11a and a sample needle fixing seat 22a. The fixing frame 11 in the reagent sample adding part includes a reagent needle frame body 11b and a reagent needle fixing seat 22b. The adjustment structure includes a first strip-shaped hole opened in the sample needle holder 22a and a first adjustment member 23a pierced through the first strip-shaped hole and connected to the sample needle holder 11a. The first adjustment member 23a can be used as the sample needle 8 Adjustment shaft; the adjustment structure also includes a second strip-shaped hole opened in the reagent needle fixing seat 22b and a second adjustment piece 23b that passes through the second strip-shaped hole and is connected to the reagent needle holder body 11b. The second adjustment piece 23b can As a reagent needle adjustment shaft. The extending direction of the first strip-shaped hole and the extending direction of the second strip-shaped hole are located in the horizontal direction and are perpendicular to each other. The first strip-shaped hole and the second strip-shaped hole can be in the shape of a waist-shaped hole or the like. Both the first adjusting member 23a and the second adjusting member 23b can be screws. In this way, the front-back and left-right distances between the sample needle holder 22a and the reagent needle holder 22b can be adjusted through the adjustment structure, and the adjustment structure is simple and reliable.

Specifically, the first lateral sliding part also includes a first base frame, the first base frame includes a first optical axis, the first optical axis includes a first upper optical axis 2a and a first lower optical axis 2b, and the first upper optical axis 2a It is arranged parallel to the first lower optical axis 2b up and down. The first carriage 4 is slidably connected to the first optical axis. The first driving part includes a first driving part 1 and a first transverse transmission mechanism, the first driving part 1 is connected to the first base frame, the first driving part 1 can be a motor, and the first transverse transmission mechanism is connected to the first driving part 1 Between the first carriage 4; the first transverse transmission mechanism includes a first toothed belt 3 driven by the first driver 1, and the first carriage 4 is fixedly connected to the first toothed belt 3; or, the transverse transmission mechanism It may also include a first rack driven by the first driving member 1, and the first carriage 4 is fixedly connected to the first rack; or, the transverse transmission mechanism includes a first screw rod driven by the first driving member 1, and the first The carriage 4 is threadedly connected to the first screw mandrel.

Specifically, the second driving component includes a second driving member 13 and a second transverse transmission mechanism, the second driving member 13 is connected to the first carriage 4, and the second transverse transmission mechanism is connected to the second Between the driving member 13 and the second sliding frame 12, the second transverse sliding part includes a second base frame, the second base frame includes a second optical axis, and the second sliding frame 12 is slidably connected to the first Two optical axes; the second transverse transmission mechanism includes the second toothed belt 10 driven by the second driver 13, and the second carriage 12 is fixedly connected to the second toothed belt 10; The second rack driven by the second driving member 13, the second carriage 12 is fixedly connected to the second rack; or, the transverse transmission mechanism includes a second screw rod driven by the second driving member 13, and the second carriage 12 is threadedly connected to the second rack. Second screw.

Specifically, the second optical axis includes a second upper optical axis 9b and a second lower optical axis 9a, and the second upper optical axis 9b and the second lower optical axis 9a may be arranged in parallel up and down. The second pedestal further includes at least one support rod 19 , the axes of the support rod 19 are parallel to the axes of the second upper optical axis 9 b and the second lower optical axis 9 a and are not on the same plane. The supporting rods 19 are arranged in a triangle form with the second upper optical axis 9b and the second lower optical axis 9a, which has high structural stability. The section of support bar 19 can be " L " shape, and it can be made with angle iron etc.

Specifically, the needle tube is connected with a liquid level detection module, which can effectively improve the liquid absorption efficiency and improve the cleaning effect after the needle washing liquid.

The sampling equipment provided by the utility model can be used as a double-headed or multi-headed needle linkage sampling equipment with anti-collision and liquid level detection functions, as shown in Figure (1) and Figure (2), this structure It can realize the X-direction (first transverse direction), Y-direction (second transverse direction), and Z-direction (longitudinal) movement of the space, and realize no dead angle in the working area; the linked Z-direction double-headed or multi-headed needle structure, at least one of which Aspirate the sample separately, and at least one of them draws the reagent separately, so that the sample and the reagent can be injected into the detection container with the smallest time interval; at the same time, the step of washing the needle is eliminated during the process of drawing the same reagent, thereby greatly improving efficiency; anti-collision device The anti-collision function can avoid the problem of sample needle 8 and reagent needle 7 being broken; the liquid level detection function can increase the efficiency of liquid absorption and cleaning. Wherein, the first transverse sliding part is mainly composed of a first driving member 1 , a first optical axis 2 a , 2 b , a first toothed belt 3 , and a first carriage 4 . The first toothed belt 3 is fixedly connected with the first carriage 4, and the first carriage 4 and the first optical axes 2a, 2b can be slidably connected through linear bearings, and the rotation of the first driving member 1 (motor) drives the first toothed The belt 3 moves along the X direction, thereby driving the first carriage 4 to move along the X direction. The second transverse sliding part is mainly composed of a second drive member 13 , a second toothed belt 10 , a second carriage 12 , a second upper optical axis 9 b , a second lower optical axis 9 a , a front fixing frame 6 , and a support rod 19 . The second upper optical axis 9b, the second lower optical axis 9a, the front fixed frame 6 and the first sliding frame 4 are fixedly connected together; the front fixed frame 6 and the second sliding frame 12 are connected to the support rod 19, and the second upper optical axis 9b, both ends of the second lower optical axis 9a. The second toothed belt 10 and the second carriage 12 are fixedly connected together; the second carriage 12 and the second upper optical axis 9b and the second lower optical axis 9a can form a sliding connection through linear bearings, and the second driving member 13 The rotation drives the second toothed belt 10 to move along the Y direction, thereby driving the second carriage 12 to move along the Y direction. In addition, as shown in FIG. 4, the second upper optical axis 9b, the second lower optical axis 9a, the support rod 19, the front fixing frame 6, and the first sliding frame 4 form a stable tripod structure, which realizes the movement in the Y direction. The rigidity of the Y-direction structure is increased, and the positioning accuracy of the Z-direction probe is increased. In this embodiment, the longitudinal driving part may include a sample needle motor 5a and a reagent needle motor 5b, and the Z direction is mainly composed of the sample needle motor 5a, the reagent needle motor 5b, the sample needle 8, the reagent needle 7, the reagent needle holder 11b, the sample needle Fixed frame 11a, elastic coupling 14, screw rod 15 in Z direction, longitudinal guide rail 16, linkage plate 17, optocoupler 18, spring, anti-collision screw 21, reagent needle holder 22b, sample needle holder 22a, the second It is composed of a regulating part 23a and a second regulating part 23b. The sample needle motor 5a, the reagent needle motor 5b are fixedly connected with the second carriage 12; the screw rod 15 is connected with the reagent needle motor 5b through the elastic coupling 14; the reagent needle holder 11b and the sample needle holder 11a are respectively The two screw rods 15 are threaded transmission connections; the reagent needle fixing seat 22b is slidingly connected to the reagent needle 7; the sample needle fixing seat 22a is slidingly connected to the sample needle 8; the reagent needle fixing frame 11b, the sample needle fixing frame 11a and the two The two longitudinal guide rails 16 are slidingly connected; the longitudinal guide rail 16 is fixedly connected to the second carriage 12; the linkage plate 17 is fixedly connected to the reagent needle 7; the anti-collision screw 21 is respectively connected to the reagent needle holder 22b and the sample needle holder 22a. fixed connection; the spring presses the reagent needle 7 and the sample needle 8 on the reagent needle holder 22b and the sample needle holder 22a respectively through the linkage plate 17 and the anti-collision screw 21; the optocoupler 18 is respectively fixed on the reagent needle holder 22b, On the sample needle holder 22a; the reagent needle holder 11b and the reagent needle holder 22b are connected together through the second adjustment member 23b; the sample needle holder 11a and the sample needle holder 22a are connected together through the first adjustment member 23a. The reagent needle motor 5b rotates to drive the screw rod 15 to rotate, and drives the reagent needle holder 11b and the reagent needle holder 22b to move up and down along the sliding direction of the longitudinal guide rail 16, thereby realizing the up and down movement of the reagent needle 7. The structure and principle of the sample needle 8 moving up and down are the same as the components of the reagent needle 7 .

The workflow of the entire component is as follows:

The component receives a sample suction command, the rotation of the first driving part 1 drives the first toothed belt 3 to move along the X direction, thereby driving the first carriage 4 to move along the X direction to reach the target X coordinate position; the second driving part 13 The rotation drives the second toothed belt 10 to move along the Y direction, thereby driving the second carriage 12 to move along the Y direction to reach the target Y coordinate position; the rotation of the Z reagent needle 7 motor 5a drives the screw rod 15 to rotate, and drives the sample needle holder 11a and The sample needle fixing base 22a moves downward together, so that the sample needle 8 moves downward to absorb the sample. Wherein, the X-direction and Y-direction movement can be carried out synchronously, and the liquid level detection module activates the liquid level detection function during the downward movement of the sample needle 8, so as to avoid too much liquid entering the needle tip. After the sample needle 8 sucks the sample, the motor 5a of the Z reagent needle 7 rotates to drive the screw rod 15 to rotate in the opposite direction, and drives the sample needle holder 11a and the sample needle holder 22a to move upward to a predetermined position together. The first driving member 1 and the second driving member 1 The member 13 rotates to drive the sample needle 8 to the target position to release the sample. The process of aspirating reagents is the same as that of aspirating samples.

Anti-collision process:

The normal working state of the linkage piece 17 and the optocoupler 18 is a normally closed structure. When the machine is misoperated, when the sample needle 8 or the reagent needle 7 hits the container or the machine work surface during the downward movement, the linkage piece 17 Compress the anti-collision spring, the sample needle 8 or the reagent needle 7 slides upward relative to the needle holder 11, the linkage plate 17 is separated from the optocoupler 18, the optocoupler 18 is opened, the external controller receives the abnormal signal of the optocoupler 18, and the machine stop working. The optocoupler 18 and the linkage plate 17 can be normally opened in a normal state, and the working mode of bumping and closing can be replaced.

During the use of the double-ended needle, it is necessary to ensure the distance between the X-direction and the Y-direction of the double-ended needle (sample needle 8 and reagent needle 7). Adjustment function. As shown in Figure (5), a waist-shaped hole (second strip-shaped hole) is processed on the reagent needle fixing seat 22b, and the second adjustment member 23b can slide in the waist-shaped hole (second strip-shaped hole) before tightening , thereby adjusting the position of the reagent needle holder 22b and the reagent needle holder 11b along the X direction; the sample needle holder 22a is processed with a waist-shaped hole (the first strip-shaped hole), and the first adjustment member 23a can be adjusted before tightening. Sliding in the waist-shaped hole, thereby adjusting the positions of the sample needle fixing seat 22a and the sample needle fixing frame 11a along the Y direction. Thus, the positions of the sample needle 8 and the reagent needle 7 in the X direction and the Y direction are adjusted.

Moreover, in the Y direction, a stable triangular structure is formed by the double optical axes and the L-shaped long rod (support rod 19), so that the entire sample adding probe can move along the Y direction, and the stable triangular support structure can well strengthen the Y direction. The rigidity of the cantilever probe increases the positioning accuracy of the sampling probe. Set up a side-by-side structure that can be linked and independently move up and down in the Z direction, which can avoid the risk of cross-contamination between reagents and samples; add an anti-collision device to the double-ended needle structure in the Z direction, which can effectively avoid machine misuse. The risk of breaking; at the same time, in order to ensure the spacing position requirements of the double-ended needles, an adjustment structure is added; in addition, adding a liquid level detection function inside the double-ended needles (sample needle 8 and reagent needle 7) in the Z direction can effectively improve The efficiency of liquid absorption improves the cleaning effect after needle washing.

The sample adding equipment provided by the utility model increases the efficiency of liquid absorption and sample adding, and avoids the risk of cross-contamination of samples and reagents; the anti-collision function can avoid the problem that the sample needle 8 is broken; the liquid level detection function can increase Liquid absorption and cleaning efficiency, the whole scheme has simple structure, perfect and reliable functions, high sample addition efficiency, can effectively improve the detection efficiency of samples, high degree of automation and is not easy to misuse, high equipment reliability and simple and reliable structure, no redundancy.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection.

Claims (15)

1. a loading device, is characterized in that, comprises

First horizontal slide unit and the second horizontal slide unit, described first horizontal slide unit comprises the first balladeur train and the first driver part for driving described first balladeur train to slide along the first horizontal direction, described second horizontal slide unit is connected to described first balladeur train, described second horizontal slide unit comprises the second balladeur train and the second driver part for driving described second balladeur train to slide along the second horizontal direction, described second balladeur train is connected with at least two groups can the application of sample parts of independently action, described application of sample parts comprise be slidably connected to described second balladeur train and for the fixed mount that clamps needle tubing be connected to described second balladeur train and for driving the zigzag tread patterns parts of the relative described second balladeur train longitudinal sliding motion of described fixed mount.

2. loading device as claimed in claim 1, it is characterized in that, described zigzag tread patterns parts comprise electric rotating machine and are connected to the longitudinal gear train between described electric rotating machine and described fixed mount, or described zigzag tread patterns parts are linear electric motors.

3. loading device as claimed in claim 2, it is characterized in that, described electric rotating machine is fixedly connected on described second balladeur train, described longitudinal gear train comprises screw mandrel and is arranged at the threaded hole of described fixed mount, the rotating shaft of described motor is connected to described screw mandrel, and described wire rod thread is connected to the threaded hole of described fixed mount; Or described longitudinal gear train is rack and pinion drive mechanism.

4. loading device as claimed in claim 1, it is characterized in that, described second balladeur train is fixedly connected with longitudinal rail, and described fixed mount is slidably connected to described longitudinal rail.

5. loading device as claimed in claim 1, is characterized in that, be provided with the collision avoidance system that can stop when described needle tubing is collided between described needle tubing and described fixed mount.

6. loading device as claimed in claim 5, it is characterized in that, described collision avoidance system comprise for by described needle tubing elastic compression in the elastic compaction mechanism of described fixed mount, described elastic compaction mechanism comprises the elastic component that the linkage piece that is connected to described needle tubing and elasticity are pressed on described linkage piece, and described collision avoidance system also comprises the detection part be connected between described linkage piece and described fixed mount.

7. the loading device according to any one of claim 1 to 6, it is characterized in that, wherein application of sample parts described in a group are the sample application parts for clamping specimen needle, wherein another organizes described application of sample parts is reagent pipetting volume parts for clamping reagent needles, and described sample application parts and the adjacent spacing of described reagent pipetting volume parts are arranged.

8. loading device as claimed in claim 7, is characterized in that, described sample application parts and/or described reagent pipetting volume parts are provided with for regulating described specimen needle and reagent needles between left and right apart from the spacing adjustment structure with fore-and-aft clearance.

9. loading device as claimed in claim 8, it is characterized in that, fixed mount in described sample application parts comprises specimen needle fixed mount and specimen needle holder, and described adjustment structure comprises the first bar hole of being opened in described specimen needle holder and is arranged in described first bar hole and is connected to the first regulating part of described specimen needle fixed mount.

10. loading device as claimed in claim 9, it is characterized in that, fixed mount in described reagent pipetting volume parts comprises reagent needles support body and reagent needles holder, described adjustment structure also comprises the second bar hole of being opened in described reagent needles holder and is arranged in described second bar hole and is connected to the second regulating part of described reagent needles support body, and the bearing of trend of described first bar hole and the bearing of trend of described second bar hole are being positioned at horizontal direction and mutually vertical.

11. loading devices according to any one of claim 1 to 6, it is characterized in that, described first driver part comprises the first actuator and the first transverse transmission mechanism, described first actuator is connected to the first pedestal, and described first transverse transmission mechanism is connected between described first actuator and the first balladeur train; Described first horizontal slide unit also comprises the first pedestal, described first pedestal comprises primary optic axis, described first balladeur train is slidably connected to described primary optic axis, described first pedestal is connected with the first actuator, described first actuator is motor, is connected with the first transverse transmission mechanism between described first actuator and described first balladeur train; Described first transverse transmission mechanism comprises the first cog belt driven by described first actuator, and described first balladeur train is fixedly connected on described first cog belt; Or described transverse transmission mechanism comprises the first tooth bar driven by described first actuator, and described first balladeur train is fixedly connected on described first tooth bar; Or described transverse transmission mechanism comprises the first screw mandrel driven by described first actuator, and described first balladeur train is threadedly connected to described first screw mandrel.

12. loading devices according to any one of claim 1 to 6, it is characterized in that, described second driver part comprises the second actuator and the second transverse transmission mechanism, described second actuator is connected to the first balladeur train, and described second transverse transmission mechanism is connected between described second actuator and the second balladeur train; Described second horizontal slide unit comprises the second pedestal, and described second pedestal comprises the second optical axis, and described second balladeur train is slidably connected to described second optical axis; Described second transverse transmission mechanism comprises the second cog belt driven by described second actuator, and described second balladeur train is fixedly connected on described second cog belt; Or described transverse transmission mechanism comprises the second tooth bar driven by described second actuator, and described second balladeur train is fixedly connected on described second tooth bar; Or described transverse transmission mechanism comprises the second screw mandrel driven by described second actuator, and described second balladeur train is threadedly connected to described second screw mandrel.

13. loading devices as claimed in claim 12, it is characterized in that, described second optical axis comprises optical axis and second time optical axis on second, on described second, optical axis and second time optical axis parallel distance are arranged, described second pedestal also comprises at least one support bar, on the axis of described support bar and described second optical axis and second time optical axis axis being parallel and not at grade.

14. loading devices according to any one of claim 1 to 6, it is characterized in that, described needle tubing is connected with level sensing module.

15. 1 kinds of coagulo meters, is characterized in that, described coagulo meter has the loading device according to any one of claim 1 to 14.