CN201689104U - Sample Rack Components, Adapters, and Sample Analysis Devices - Google Patents

Abstract

The utility model discloses a sample rack assembly, an adapter and a sample analysis device, comprising a sample rack, a plurality of clamping sheets and a plurality of adapters, the sample rack has a plurality of The sample tube hole, the hole wall has a plurality of slots through the sample tube hole, the clamping piece has a mounting part and an elastic free part with a first contact section, the mounting part is fixed on the In the slot, the free part extends cantilevered from the mounting part, the adapter has an annular base body and a plurality of elastic clamping arms with second contact segments extending out from the base body in a cantilevered shape, and the base body mounts into the hole of the sample tube and snap-fit with the wall of the hole, each clamping arm corresponds to a clamping piece, the clamping arm is located on the inner side of the corresponding clamping piece, and the clamping arm The sheet elastically presses against its corresponding clamping arm. The sample rack assembly can hold sample test tubes of various specifications and has a wide range of applications.

Description

Sample Rack Components, Adapters, and Sample Analysis Devices

technical field

The utility model relates to the field of biochemical analyzers, in particular to a sample rack assembly used in biochemical analyzers.

Background technique

In the automatic sampling system of the automatic biochemical analyzer, the sample rack carries the sample test tubes for storing samples, and the positioning, centering and anti-rotation of the sample test tubes are realized through the elastic clamping points on the sample rack. Due to the large difference in the diameter of test tubes of different specifications, when inserting a test tube with a small diameter, the clamping force of the elastic clamping point on the sample test tube is not enough, resulting in the rotation of the sample test tube during the transfer of the sample rack or even failure to center. Phenomenon, which affects the scanning of the sample barcode and the sampling of the sample; when a test tube with a larger diameter is inserted, the diameter of the test tube is too large, resulting in plastic deformation of the elastic clamping point, and permanent deformation of the elastic clamping point after the test tube is pulled out.

Utility model content

The purpose of the utility model is to provide a sample rack assembly, an adapter and a sample analysis device capable of clamping sample test tubes of various specifications in view of the deficiencies of the prior art.

In order to achieve the above object, the utility model adopts the following technical solutions: a sample rack assembly, including a sample rack, at least two clamping pieces and at least two adapters, the sample rack has at least two a sample tube hole surrounded by a hole wall, the hole wall has at least two slots that pass through the sample tube hole, the clamping piece has a mounting portion and an elastic free portion with a first contact section, so The installation part is fixed in the slot, the free part extends from the installation part, and the adapter has an annular base and at least two elastic clamps with a second contact section extending out from the base in a cantilever shape. arm, the base body is loaded into the hole of the sample tube and snap-fitted with the wall of the hole, each clamping arm is corresponding to a clamping piece, and the clamping arm is located on the inner side of the corresponding clamping piece , and the clamping piece elastically presses against the corresponding clamping arm.

Further, at least one of the two first sides extending in the width direction of the sample holder has a hanging ear protruding from it.

Further, among the two second sides extending in the length direction of the sample holder, one second side is convexly provided with ribs extending in the length direction, and the other second side is concavely provided with ribs extending in the length direction. The chute extends in the direction.

Further, there is only one rib and chute, and both run through in the length direction of the sample rack.

Further, the height of the rib is smaller than the depth of the chute.

Further, the middle part and the upper part of the second side are provided with glue reducing grooves.

Further, the first contact segment elastically presses against its corresponding second contact segment.

Further, the base body has a protruding first buckle and a cantilever-shaped second buckle extending downwards, and the hole wall has a first buckle hole that is connected with the slot and is connected to the sample tube hole. through the second locking hole, the first buckle is locked in the first locking hole, and the second buckle is locked in the second locking hole.

Further, the mounting part has a first bend and a second bend extending cantilevered from the first bend, the first bend is clamped in the slot, and the second bend is clamped in the first card hole.

An adapter for a sample holder assembly, which has an annular base body and at least two elastic clamping arms with second contact sections extending cantilevered from the base body, and each second contact segment is formed between each of the second contact segments for clamping a sample. Clamping space for test tubes. The base body has a protruding first buckle and a cantilever-shaped second buckle extending downward.

A sample analysis device includes the sample rack assembly.

The beneficial effects of the utility model are: when a sample test tube with a smaller diameter needs to be clamped, the sample test tube is directly inserted into the adapter, and the sample test tube is clamped through the second contact section of the adapter; when a sample test tube with a larger diameter needs to be clamped, The adapter can be removed, and the sample test tube can be clamped by the first contact section of the clamping piece; thus, the sample rack assembly can clamp sample test tubes of various specifications, and has a wide range of applications.

Description of drawings

Fig. 1 is the perspective view before the assembly of the sample holder and the clamping piece of the present embodiment;

Fig. 2 is a partial enlarged view of the place indicated by A in Fig. 1;

Fig. 3 is a perspective view of the sample holder, the clamping piece and the adapter before assembly of the present embodiment;

Fig. 4 is a partial enlarged view of the place indicated by C in Fig. 3;

5 is a schematic diagram of the assembly of the sample rack assembly in this embodiment;

Fig. 6 is a partial enlarged view of the place indicated by B in Fig. 5;

Fig. 7 is a structural schematic diagram of the sample rack assembly installed on the track of the insertion area (recovery area) in this embodiment;

8 and 9 are perspective views of two perspective views of the sample rack of the sample rack assembly of the present embodiment;

Figure 10 is a schematic structural view of two sample racks placed side by side;

Fig. 11 is a schematic diagram of the structure when the sample holder cooperates with the detection channel.

Detailed ways

The utility model will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

As shown in FIGS. 1 to 11 , the sample rack assembly of this embodiment includes a sample rack 1 , a clamping piece 3 and an adapter 2 .

As shown in FIG. 1 to FIG. 8 , the sample rack 1 has a plurality of sample tube holes 13 arranged along its length direction, and the sample tube holes 13 are matched with the sample tubes. Each sample tube hole 13 is surrounded by a hole wall 25, the hole wall 25 has a light opening 26, the light opening 26 is connected with the sample tube hole 13, and the light opening 26 is used for passing the light for scanning the barcode of the sample tube . The hole wall 25 also has a plurality of slots 7 extending in the axial direction of the sample tube hole 13, the slots 7 communicate with the sample tube hole 13, and the slots 7 are stepped grooves with a large inner diameter and a small bottom, which include The upper first slot with a larger inner diameter and the lower second slot with a smaller inner diameter. The sample rack 1 also has two rows of first clamping holes 8 arranged along its length direction, and each first clamping hole 8 penetrates the hole wall 25 in the radial direction of the sample tube hole 13 and penetrates with the slot 7 . The sample holder 1 also has a row of second clamping holes 14 arranged along its length direction, and the second clamping holes 14 pass through the hole wall 25 in the radial direction of the sample tube hole 13 and communicate with the sample tube hole 13 .

The clamping piece 3 has elasticity, and it has a mounting portion 27 and an elastic free portion 28 that can be bent and deformed when subjected to an external force and can recover from deformation when the external force is removed. The mounting portion 27 is provided with a first bend 4 and is located on the first The second bend 6 extending upwards in a cantilever shape on the back of the bend 4 has a free portion 28 with a first contact section 5 for holding a sample test tube.

The adapter 2 has a base body 29 with a ring-shaped cross section and a plurality of elastic clamping arms 30 extending downward from the base body 29 in a cantilever shape. The base body 29 has a flange step 12 extending outward in its radial direction. The flange step 12 has a notch 18 corresponding to the light hole 26, and the base 29 also has a first buckle 11 protruding outward in the radial direction of the base and a second buckle 10 extending downward in a cantilever shape. The clamping arm 30 is in the It can be bent and deformed when the external force is applied, and can recover the deformation when the external force is removed. The clamping arm 30 has a second contact section 9 for clamping the sample tube.

The sample tube holes 13 of the sample rack 1 correspond to the adapters 2 one by one, that is, one adapter 2 can be loaded into each sample tube hole 13 . Each slot 7 of the sample rack 1 corresponds to a clamping piece 3 and a clamping arm 30 of the adapter, each clamping piece 3 corresponds to a first clamping hole 8, and each adapter corresponds to a first clamping hole 8 and A second card hole 14.

The sample holder 1 has two first sides 32 extending in its width direction and two second sides 33 extending in its length direction. Among the two second sides 33, one is located at the scanning side of the sample holder, and one is located at the scanning side of the sample holder. On the non-scanning side, the light opening 26 is opened on the second side on the scanning side, two rows of first card holes are respectively opened on the two second sides, and a row of second openings is opened on the second side on the non-scanning side. on two sides.

Now take four clamping pieces corresponding to each sample tube hole as an example to illustrate, of course, each sample tube hole can also correspond to two, three or more than four clamping pieces: four clamping pieces 3 are inserted into four a slot 7, the first bend 4 of the clamping piece 3 is stuck in the first slot with a larger inner diameter of the slot 7, so as to realize the positioning of the clamping piece 3 in the circumferential direction of the sample tube hole 13; The lower edge of the first bend 4 of the sheet 3 is pressed against the groove bottom of the first slot, and the second bend 6 of the clamping sheet 3 is stuck on the upper edge of the first clamping hole 8 of the sample rack to realize the alignment of the clamping sheet. 3, at this time, the free parts 28 of the four clamping pieces 3 in the four slots 7 are all bent inward, and the first contact sections 5 of the four clamping pieces 3 all extend into the sample tube hole 13, the diameter of the first clamping space defined between each first contact section 5 is smaller than the diameter of the sample test tube with a larger diameter, so that the sample test tube can be clamped by the elastic force of the clamping piece.

When it is necessary to clamp a sample test tube or a microcup with a smaller diameter, the adapter 2 is inserted into the sample tube hole 13, and the lower edge of the flange step 12 of the adapter 2 is pressed on the sample holder 1, and the notch 18 of the flange step 12 is in contact with the sample. The light opening 26 of the frame is matched, the lower edge of the second clip 10 of the adapter is clipped on the upper edge of the second clip hole 14, and the first clip 11 of the adapter is clipped on the upper edge of the first clip hole 8 on the scanning side , to realize the circumferential positioning and up and down positioning of the adapter on the sample holder.

As shown in Fig. 7 and Fig. 8, the upper edge of the two first side surfaces 32 of the sample rack all stretches out the hanging lug 15 with certain length, when the sample rack 1 advances forward in the putting area and the recovery area, the hanging ear 15 is in surface contact with the upper edge of the track 35 of the insertion area (recovery area), which effectively prevents the sample rack from toppling over.

As shown in Figures 8 to 10, the second side 33 of the sample holder on the non-scanning side can be provided with a rib 16, and the second side on the scanning side can be provided with a chute 17, and the rib 16 and the chute 17 Both extend in the length direction of the sample holder. There may be only one rib and one chute, and both the rib 16 and the chute 17 run through the entire length direction of the sample rack 1 , that is, extend from one first side to the other first side. The depth of chute 17 can be slightly larger than the height of rib position 16 to facilitate sliding. When two sample racks 1 are placed side by side, the rib 16 of one sample rack is stuck in the chute 17 of the other sample rack, which can effectively prevent the two sample racks from falling off, which can be applied to three or more The scene where the sample racks are arranged side by side effectively prevents the falling off between the sample racks. Since the ribs and the chute of the sample rack are continuous in the length direction of the sample rack, the movement of the two sample racks in the length direction will not be affected.

In addition, as shown in Fig. 8, Fig. 9 and Fig. 11, the middle part of the two second sides of the sample holder 1 forms the first glue-reducing groove 19 through the glue-reducing design. The joint surface is smaller, the friction between each other is smaller, and the mutual sliding between the two sample holders is smoother. The upper part of the two second sides of the sample rack can also be designed to form a second glue reducing groove 34 through the design of reducing glue. When the sample rack enters the detection channel 22 and interferes with the detection channel 22, it is only the lower part 23 of the second side of the sample rack. In contact with the detection channel 22, the upper edge 24 of the detection channel is not in contact with the sample rack, which avoids the possibility of scratches and burrs on the sample rack from the upper edge of the channel, and avoids the risk of scratching the operator due to burrs on the sample rack.

For the sample rack assembly, it has a sample rack, multiple clamping pieces and multiple adapters. The sample rack has multiple sample tube holes surrounded by hole walls. The snap fit is fixed in the slot, and the free part of the clamping piece extends in a cantilever shape, so that a sample test tube with a larger diameter can be clamped by elastic force; the adapter has a base body and a plurality of clamping arms extending in a cantilever shape from the base body, The base body is inserted into the hole of the sample tube and can be disassembled by snap fit with the hole wall. Each clamping arm corresponds to a clamping piece. Each clamping arm is located on the inner side of the corresponding clamping piece and is clamped by the corresponding clamping piece. The sheet is elastically pressed against, so as to realize the clamping of a sample test tube or a microcup with a small diameter. For the clamping piece, it is buckled with the wall of the hole by bending, and the number and shape of the bend can be designed according to requirements; for the adapter, it is snapped and fitted with the wall of the hole by a buckle, and the number and shape of the buckle can also be adjusted. Can be designed upon request.

A sample analysis device includes the aforementioned sample rack assembly. The sample analysis device may be a biochemical analyzer, an enzyme immunoassay apparatus or other devices capable of analyzing samples.

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 a person of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.

Claims (12)

1. sample rack assembly, comprise sample rack and at least two holding pieces, described sample rack has at least two sample pores that crossed by hole wall of arranging in the longitudinal direction, described hole wall has at least two slots that connect with described sample pore, described holding piece has installation portion and has the elasticity free section of first contact segment, described installation portion is fixed in the described slot, extend from described installation portion described free section, it is characterized in that: also comprise at least two adapters, described adapter has annular matrix and from least two resilient clamp arms with second contact segment of the cantilever-shaped extension of described matrix, described matrix is packed in the described sample pore and is clasped with described hole wall, each clamping limb is all to there being a holding piece, described clamping limb is positioned at the inboard of the holding piece corresponding with it, and described holding piece elasticity compresses the clamping limb corresponding with it.

2. sample rack assembly as claimed in claim 1 is characterized in that: described sample rack in two first sides that its Width extends, be extended with one of at least hangers.

3. sample rack assembly as claimed in claim 1, it is characterized in that: described sample rack in two second sides that its length direction extends, one second side convexes with the rib that extends at described length direction, and another second side is concaved with the chute that extends at described length direction.

4. sample rack assembly as claimed in claim 3 is characterized in that: described rib and chute all only have one also all to connect on the length direction of described sample rack.

5. sample rack assembly as claimed in claim 4 is characterized in that: the height of described rib is less than the degree of depth of described chute.

6. sample rack assembly as claimed in claim 3 is characterized in that: the middle part of described second side and top are equipped with and subtract the glue groove.

7. sample rack assembly as claimed in claim 1 is characterized in that: the described first contact segment elasticity compresses second contact segment corresponding with it.

8. as any described sample rack assembly among the claim 1-7, it is characterized in that: described matrix has first buckle of protrusion and second buckle of cantilever-shaped downward extension, described hole wall has all first hole clipping that connects with described slot and second hole clipping that connects with described sample pore, described first buckle is stuck in first hole clipping, and described second buckle is stuck in second hole clipping.

9. sample rack assembly as claimed in claim 8, it is characterized in that: described installation portion has first bending and from second bending of the cantilever-shaped extension of described first bending, described first bending is stuck in the described slot, and described second bending is stuck in described first hole clipping.

10. the adapter of a sample rack assembly, it is characterized in that: have annular matrix and, be formed for the grasping part of clamping sample tube between each described second contact segment from cantilever-shaped extended at least two the resilient clamp arms of described matrix with second contact segment.

11. the adapter of sample rack assembly as claimed in claim 10 is characterized in that: described matrix has first buckle of protrusion and second buckle of cantilever-shaped downward extension.

12. a device for analyzing samples is characterized in that: comprise any described sample rack assembly among the claim 1-7.

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