CN216900565U - Transmission assembly, reagent mixing device and detection equipment - Google Patents

Abstract

The utility model relates to a transmission assembly, a reagent blending device and detection equipment, wherein the transmission assembly comprises a first transmission piece and a second transmission piece, the second transmission piece is an elastic piece, the first transmission piece comprises a plurality of first limiting pieces which are distributed at intervals along a first distribution circumference, one end of each first limiting piece is provided with a first guide surface, and the first guide surface is obliquely arranged relative to the central axis of the first distribution circumference; the second transmission piece at the first position is positioned at the interval between two adjacent first limiting pieces; the first guide surface is in sliding fit with the second transmission piece, the first guide surface can guide the second transmission piece to move to the second position, and the second transmission piece at the second position abuts against the first limiting piece. Thus, the stability of the transmission assembly can be realized. In the reagent blending device comprising the transmission assembly, the transmission relationship between the first transmission piece and the second transmission piece is stable, so that the blending efficiency of the inserted reagent bottle is improved.

Description

Transmission assembly, reagent mixing device and detection equipment

Technical Field

The utility model relates to the technical field of biological detection and diagnosis, in particular to a transmission assembly, a reagent blending device and detection equipment.

Background

With the development of biochemical analysis fields such as biological detection technology, diagnostic technology, etc., the pretreatment of samples has become increasingly complicated. The common pretreatment method is to mix the reagents including the magnetic beads and the reaction solution uniformly to ensure the accuracy of the detection result.

In the prior art, a contact type blending mode is generally adopted, namely a stirring rod or an ultrasonic device is extended into a magnetic bead bottle (reagent bottle) to directly stir. Or the magnetic bead bottle is rotated by the transmission mechanism in a non-contact mixing mode so as to uniformly mix the reagent in the magnetic bead bottle.

However, cross infection is easily caused by a contact type uniform mixing mode, and the accuracy of a detection result is influenced; for the non-contact type mixing mode, when loading the magnetic bead bottle, the situation that the transmission relation is unstable due to clamping stagnation, connection relation dislocation and the like often occurs between the magnetic bead bottle and the transmission mechanism, and the mixing efficiency is seriously reduced.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a transmission assembly, a reagent blending device and a detection apparatus for solving the problem of how to ensure the accuracy of the detection result and improve the efficiency of reagent blending.

A transmission assembly comprises a first transmission piece and a second transmission piece, wherein the second transmission piece is an elastic piece, the first transmission piece comprises a plurality of first limiting pieces which are distributed at intervals along a first distribution circumference, one end of each first limiting piece is provided with a first guide surface, and the first guide surfaces are obliquely arranged relative to the central axis of the first distribution circumference;

the second transmission piece at the first position is positioned at the interval between two adjacent first limiting pieces;

the first guide surface is in sliding fit with the second transmission piece, the first guide surface can guide the second transmission piece to move to a second position, and the second transmission piece at the second position abuts against the first limiting piece.

In the transmission assembly, the first limiting pieces are distributed at intervals along the first distribution cylinder, and the second transmission piece at the first position is positioned at the interval between two adjacent first limiting pieces. Therefore, when the first transmission piece rotates, the second transmission piece at the first position can be driven to rotate through the first limiting piece. That is, the second transmission member in the first position can maintain a stable transmission relationship with the first transmission member.

Because the first guide surface is in sliding fit with the second transmission member, the first guide surface can guide the second transmission member to move to the second position, so that the clamping stagnation phenomenon between the second transmission member and the first limiting member is avoided. And the second transmission piece at the second position can be abutted against the first limiting piece. When the friction force generated by the second transmission member abutting against the first limiting member is not enough to enable the second transmission member to rotate along with the first limiting member or to enable the second transmission member to stably rotate along with the first limiting member, the second transmission member can slide relative to the first limiting member. Since the first position-limiting members are spaced apart along the first distribution circumference, the spacing between the first position-limiting members is also spaced apart along the first distribution circumference. Therefore, the second transmission piece can slide into the interval between the adjacent first limiting pieces when sliding relative to the first limiting pieces. That is, the second transmission member reaches the first position. Furthermore, the second transmission piece and the first locating part can keep stable transmission relation, and the efficiency of reagent mixing is guaranteed. Moreover, the stirring rod or the ultrasonic device and the like can be prevented from directly extending into the reagent for uniform mixing through the transmission assembly, cross infection caused by a contact type uniform mixing mode is avoided, and the accuracy of a detection result is ensured.

In one embodiment, the second transmission member includes a plurality of second limiting members distributed at intervals along a second distribution circumference, each of the second limiting members is an elastic member, the second limiting members at the first position are disposed at intervals between adjacent first limiting members, and the second limiting members are abutted to and engaged with the first limiting members.

In one embodiment, an outer edge of each of the first locating members defines a first circumference, and an inner edge of each of the second locating members defines a second circumference, and a diameter of the second circumference is smaller than a diameter of the first circumference.

In one embodiment, a second guide surface is disposed at one end of the second transmission member, which is close to the first transmission member, a distance from the second guide surface to the second distribution circumferential central axis is gradually reduced along the rotation direction of the first transmission member, and the second transmission member at the second position can press the first transmission member through the second guide surface.

In one embodiment, each of the first retaining members extends in a radial direction of the first distribution circumference.

In one embodiment, the distance from the first guide surface to the central axis of the first distribution circumference increases gradually in the direction from the second transmission member toward the first transmission member.

The utility model provides a reagent mixing device for make the reagent mixing in the reagent bottle, reagent mixing device includes:

the reagent box is used for bearing the reagent bottle, and the reagent bottle is rotatably arranged on the reagent box;

the reagent box is arranged on the bearing support;

a transmission assembly as described in any one of the above embodiments;

the first transmission piece is rotatably arranged on the bearing support, the second transmission piece is arranged on the reagent bottle, and the first transmission piece is used for driving the reagent bottle to rotate when rotating; or the second transmission piece is rotatably arranged on the bearing support, the first transmission piece is arranged on the reagent bottle, and the second transmission piece is used for driving the reagent bottle to rotate when rotating.

In one embodiment, the reagent blending device further comprises a driving assembly, the first transmission piece is rotatably arranged on the bearing support, the second transmission piece is arranged on the reagent bottle, and the driving assembly is connected with the first transmission piece and used for driving the second transmission piece to rotate.

In one embodiment, the reagent blending device comprises a plurality of reagent boxes, each reagent box is uniformly arranged on the bearing support at intervals, a plurality of first transmission pieces are arranged on the bearing support, and the number and the arrangement positions of the first transmission pieces correspond to those of the reagent boxes.

In one embodiment, the reagent box is provided with a mounting hole, the reagent bottle is rotatably arranged in the mounting hole, and the second transmission piece is at least partially positioned outside the mounting hole.

In one embodiment, the driving assembly is connected to the carrier support to drive the carrier support to rotate, and the first transmission member can drive the reagent bottle to rotate when the carrier support rotates.

In one embodiment, the reagent blending device further comprises a fixing seat, a first gear is arranged on the fixing seat, a second gear is arranged at one end, far away from the first transmission piece, of the second transmission piece, and the first gear is meshed with the second gear.

In one embodiment, the driving assembly comprises a driving part and a driving spindle, two ends of the driving spindle are respectively in transmission connection with the bearing support and the driving part, and the axis of the driving spindle coincides with the axis of the first gear.

A detection apparatus, comprising:

the reagent mixing apparatus of any one of the embodiments.

It will be appreciated that in the above-described transmission assembly, when the second transmission member is adjacent to the first transmission member in the axial direction of the first distribution circumference, the second transmission member has a first relative position and a second relative position with respect to the first limiting member.

When the second transmission piece moves from the first relative position to the first transmission piece, the second transmission piece can reach the first position relative to the first limiting piece. When the second transmission piece is located at the first position, the second transmission piece is located in the interval between two adjacent first limiting pieces. The two first limiting pieces which are matched to form the interval can enable the position of the second transmission piece in the first distribution circumferential direction to be relatively fixed with the first limiting pieces. Therefore, when the first transmission piece rotates, the two first limiting pieces can abut against and push the second transmission piece positioned in the interval between the two first limiting pieces. In other words, the second transmission member can rotate along with the first transmission member under the action of the two first limiting members.

When the second transmission member moves from the second relative position to the first transmission member, the second transmission member cannot reach or cannot accurately reach the first position. At this time, the second transmission member can elastically deform and move to the second position under the guiding action of the first guide surface, so as to abut against the first limiting member. When the first limiting part rotates, because the second transmission part and the first limiting part are in abutting relationship, when the abutting friction force between the second transmission part and the first limiting part is not enough to enable the second transmission part to move along with the first limiting part, or when the second transmission part and the first limiting part keep synchronous movement by enabling the abutting friction force between the second transmission part and the first limiting part, the second transmission part at the second position and the first limiting part can move relatively, namely the second transmission part can slide to the first position from the second position along the direction opposite to the rotating direction of the first transmission part. And after the second transmission piece moves from the second position to the first position, the second transmission piece can be clamped into the space between two adjacent first limiting pieces based on the elastic recovery property of the second transmission piece, so that the stable transmission relation between the first transmission piece and the second transmission piece is ensured.

Drawings

FIG. 1 is a schematic axial view of a reagent mixing apparatus according to an embodiment;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged partial view at B of FIG. 2 when the second transmission member is in the second position;

FIG. 4 is an enlarged partial view at B of FIG. 2 when the second drive member is in the first position;

FIG. 5 is an enlarged view of a portion of FIG. 3 at C;

FIG. 6 is an isometric view of the reagent intermixing apparatus of FIG. 1 from another perspective.

Reference numerals: 10. a reagent blending device; 100. a transmission assembly; 110. a first transmission member; 111. a first limit piece; 111a, a first guide surface; 112. a second gear; 113. a rotating shaft; 114. a connecting shaft; 115. a carrier plate; 120. a second transmission member; 121. a second limiting member; 200. a kit; 210. mounting holes; 220. a reagent bottle; 300. a bearing support; 400. a drive assembly; 410. a drive member; 420. driving the main shaft; 430. a first stage reduction arrangement; 431. decelerating the first gear; 432. a deceleration second gear; 440. a second stage reduction structure; 441. a pulley; 442. a transmission belt; 500. a fixed seat; 510. a first gear.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, fig. 1 is a schematic axial view illustrating a reagent kneading apparatus according to an embodiment of the present invention, fig. 2 is a cross-sectional view taken along a line a-a in fig. 1, and fig. 3 is a partially enlarged view of a portion B in fig. 2.

Referring to fig. 1 in conjunction with fig. 2 and 3, a reagent mixing apparatus 10 according to an embodiment of the present invention is used for mixing reagents in a reagent bottle 220. The reagent mixing device 10 comprises a reagent kit 200, a bearing support 300 and a transmission assembly 100. The kit 200 is used to carry a reagent bottle 220. The reagent cartridge 200 is arranged on the carrier support 300. The driving assembly 100 is used to rotate the reagent bottle 220 on the reagent cartridge 200 relative to the reagent cartridge 200, so as to mix the reagents in the reagent bottle 220. The type of the reagent is not limited, and the reagent can be a reaction reagent or a sample to be detected and the like which need to be uniformly mixed, and can be selected according to actual needs.

Referring to fig. 2 to 5, in one embodiment, the transmission assembly 100 includes a first transmission member 110 and a second transmission member 120. The second transmission member 120 is an elastic member. The first transmission member 110 includes a plurality of first limiting members 111 spaced apart along a first distribution circumference. One end of each first limiting member 111 is provided with a first guide surface 111 a. The first guide surface 111a is disposed obliquely with respect to the central axis of the first distribution circumference.

The second transmission member 120 in the first position is located in the interval between two adjacent first limiting members 111.

The first guide surface 111a is slidably engaged with the second transmission member 120, and the first guide surface 111a can guide the second transmission member 120 to move to the second position. The second transmission member 120 at the second position presses against the first limiting member 111.

Referring to fig. 3-5, it will be appreciated that the second transmission member 120 is in a second position in the transmission assembly 100 shown in fig. 3; the drive assembly 100 shown in fig. 4 has the second drive member 120 in the first position. Referring to fig. 5, the first distribution circumference is shown by a dotted line K in fig. 5, that is, the first limiting members 111 are circumferentially distributed along the dotted line K in fig. 5. The central axis of the above-mentioned first distribution circle is referred to by reference numeral N in fig. 5.

In the transmission assembly 100, when the second transmission member 120 is close to the first transmission member 110 in the axial direction of the first distribution circumference, the second transmission member 120 has a first relative position (not shown, the same below) and a second relative position (not shown, the same below) relative to the first limiting member 111.

When the second transmission member 120 moves from the first relative position to the first transmission member 110, the second transmission member 120 can reach the first position relative to the first limiting member 111. When the second transmission member 120 is located at the first position, the second transmission member 120 is disposed in the space between the two first limiting members 111. Thus, the second transmission member 120 can rotate with the first transmission member 110 under the action of the two first limiting members 111.

When the second transmission member 120 moves from the second relative position to the first transmission member, the second transmission member cannot reach or cannot accurately reach the first position. At this time, the second transmission member 120 can be elastically deformed by the guiding action of the first guide surface 111a, that is, the second transmission member 120 is expanded by the action of the first guide surface 111 a. The second transmission member 120 is then moved toward the first transmission member 110 by the guiding of the first guide surface 111a, and is further expanded by the first guide surface 111a, and finally reaches the second position. Thereby pressing against the first limiting member 111.

At this time, when each first limiting member 111 rotates, because the second transmission member 120 and the first limiting member 111 are in a pressing relationship, the friction force generated between the second transmission member 120 and the first limiting member 111 due to the pressing cannot make the second transmission member 120 rotate along with the first limiting member 111, or cannot make the second transmission member 120 stably rotate along with the first limiting member 111. That is, the second transmission member 120 and the first limiting member 111 move relatively to each other. Therefore, the second transmission member 120 slides relative to the first limiting member 111 in a direction opposite to the rotation direction of the first limiting member 111. Since the first limiting members 111 are distributed along the first distribution circumference, after the second transmission member 120 at the second position slides relative to the first limiting members 111, the second transmission member 120 can slide to face the space between two adjacent first limiting members 111.

Further, when the second transmission member 120 slides to a position facing the space between two adjacent first limiting members 111, based on the elastic recovery property of the second transmission member 120 as an elastic member, the second transmission member 120 can be clamped into the space between two adjacent first limiting members 111, thereby ensuring a stable transmission relationship between the first transmission member 110 and the second transmission member 120.

With this arrangement, when the first transmission member 110 rotates, the second transmission member 120 at the second position can move from the second position to the first position, and maintain a stable transmission connection relationship.

In various embodiments, it is understood that the second transmission member 120 in the second position shown in fig. 3 is only one of the second positions of the second transmission member 120 relative to the first transmission member 110. It should be understood that the first position refers to a position where the second transmission member 120 is located at an interval between two adjacent first limiting members 111, that is, a position where the first limiting members 111 can transmit motion to the first transmission member 110. When the second transmission member 120 approaches the first transmission member 110 from the second relative position, the second transmission member 120 cannot be inserted into the space between two adjacent first limiting members 111. Since the second transmission member 120 cannot be inserted into the gap, the second transmission member 120 will contact the first guide surface 111a and move to the second position under the guide of the first guide surface 111 a. In other words, the first position is a correct, stable transmission position of the transmission assembly 100; the second position is an incorrect, unstable drive position of the drive assembly 100. In addition to the first position, the other position of the second transmission member 120 relative to the first transmission member 110 can be understood as the second position.

It should be understood that the approach of the second transmission member 120 to the first transmission member 110 along the axis of the first distribution circumference refers to a process of placing reagent bottles in the reagent kit 200, that is, a process of establishing a transmission connection relationship between the first transmission member 110 and the second transmission member 120. With regard to the first and second relative positions, when reagent bottles are provided in the reagent cartridge 200, that is, when the second transmission member 120 is close to the first transmission member 110 along the axis of the first distribution circumference, it is obvious that the second transmission member 120 can finally reach one of the first and second positions relative to the first transmission member 110. The first relative position refers to a position where the second transmission member 120 is not yet in contact with the first transmission member 110, and the second transmission member 120 in the first relative position can reach the first position when moving to the first transmission member 110. In contrast, the second relative position refers to another position where the second transmission member 120 is not yet in contact with the first transmission member 110, and the second transmission member 120 in the second relative position can reach the second position when moving toward the first transmission member 110.

It should be understood that the first position or the second position can be reached by the second transmission member 120 approaching the first transmission member 110 along other suitable directions, and for convenience of description, the embodiments are described by taking the example that the second transmission member 120 approaches the first transmission member 110 along the axis of the first distribution circumference, and the second transmission member 120 is not limited to reach the first position or the second position only when approaching the first transmission member 110 along the axis of the first distribution circumference. The other suitable directions can be set according to requirements, and are not described in detail herein.

Referring to fig. 4 in conjunction with fig. 2, in one embodiment, the first transmission member 110 is rotatably disposed on the supporting base 300. The second transmission member 120 is provided on the reagent bottle 220. The first transmission member 110 is used for driving the reagent bottle 220 to rotate when rotating. Thus, in connection with the above-described embodiment, the reagent bottle 220 is inserted into the first transmission member 110 in any direction. Under the driving action of the first transmission member 110, the reagent bottle 220 can rotate along with the first transmission member 110. Or the reagent bottle 220 slides to the first position relative to the first transmission member 110, and then the reagent bottle 220 rotates with the first transmission member 110, so as to mix the reagents in the reagent bottle 220.

Referring to fig. 4 and 5, in an embodiment, the first transmission member 110 includes a rotating shaft 113, a connecting shaft 114 and a supporting plate 115. The rotating shaft 113 is sleeved with a bearing (not shown, the same applies below), and the rotating shaft 113 is rotatably connected with the bearing support 300 through the bearing. One end of the rotation shaft 113 is connected to the carrier plate 115. The first limiting member 111 and the connecting shaft 114 are disposed on a side of the bearing plate 115 away from the rotating shaft 113. The first stoppers 111 are distributed on the supporting plate 115 at intervals along the first distribution circumference. The rotation shaft 113 and the connection shaft 114 coincide with the axis of the first distribution circumference. The first transmission member 110 is rotatable about the axis of the rotation shaft 113 and the connection shaft 114.

Further, the plurality of first stoppers 111 are connected to a peripheral wall of the connecting shaft 114. Therefore, the intervals between the first limiting members 111 are relatively isolated, and the second transmission member 120 is prevented from moving from one interval to another interval when rotating along with the first limiting members 111, so that the transmission of the second transmission member 120 and the first transmission member 110 is not affected. In addition, the connection between the first limiting members 111 and the peripheral wall of the connecting shaft 114 can also increase the structural strength of the second transmission member 120, so as to improve the stability of the first limiting members 111 during transmission.

Furthermore, by providing the connecting shaft 114 and connecting the plurality of first stoppers 111 to the peripheral wall of the connecting shaft 114, the movement of the second transmission member 120 can be guided. Specifically, since the axis of the connecting shaft 114 coincides with the axis of the first distribution circumference, the first stopper 111 is connected to the peripheral wall of the connecting shaft 114. Therefore, when the second transmission member 120 moves from the first relative position to the first transmission member 110, the second transmission member 120 can move along the connecting shaft 114 and enter the space between two adjacent first limiting members 111 under the guidance of the connecting shaft 114.

That is, the reagent mixing device 10 in the above embodiment can realize the stable rotation of the reagent bottle 220 by the automatic alignment effect of the transmission assembly 100 without the need of accurately aligning the first transmission member 110 and the second transmission member 120. Meanwhile, the transmission assembly 100 of the reagent blending device 10 does not have the phenomena of clamping stagnation and the like. So, very big improvement the efficiency of reagent mixing device 10 mixing reagent.

In some embodiments, second transmission member 120 may also be rotatably disposed on carrier support 300. The first transmission member 110 is correspondingly disposed on the reagent bottle 220. The second transmission member 120 can rotate to drive the first transmission member 110 to rotate, and further drive the reagent bottle 220 to rotate. Thus, the same effects that can be achieved by the transmission assembly 100 in the reagent blending device 10 according to the embodiments can also be achieved, and the details are not repeated herein.

Referring to fig. 5, in one embodiment, the second transmission member 120 includes a plurality of second position-limiting members 121 spaced apart along a second distribution circumference. Each of the second limiting members 121 is an elastic member. The second limiting member 121 at the first position is located at the interval between the adjacent first limiting members 111, and the second limiting member 121 is abutted and matched with the first limiting members 111. Thus, by providing the plurality of second limiting members 121, the stability of the transmission between the first transmission member 110 and the second transmission member 120 can be improved. The second distribution circumference is shown by a dotted line M in fig. 5, that is, the second limiting members 121 are circumferentially distributed along the second distribution circumference. The central axis of the second distribution circle may coincide with the centerline axis of the first distribution circle, i.e. the central axis of the second distribution circle may be referred to as N in fig. 5.

Specifically, the number of the second limiting members 121 may be equal to the number of the first limiting members 111. That is, each of the second position-limiting members 121 is located at an interval between two adjacent first position-limiting members 111 in a one-to-one correspondence manner. Of course, the number of the second limiting members 121 may be different from the number of the first limiting members 111 according to the requirement. Specifically, for example, two second limiting members 121 may be arranged corresponding to one of the above-mentioned intervals as required, that is, the two second limiting members 121 are inserted into the same interval; alternatively, one second limiting member 121 may be disposed to correspond to two of the above-mentioned intervals, that is, an interval that does not pass through the second limiting member 121 is further disposed between two adjacent intervals that pass through the second limiting member 121. Of course, other number relationships between the first limiting member 111 and the second limiting member 121 may be provided, and are not described herein again.

Referring to fig. 3 to 5, in an embodiment, an outer edge of each of the first position-limiting members 111 defines a first circumference; the inner edge of each second limiting member 121 is defined to form a second circumference. The diameter of the second circumference is smaller than the diameter of the first circumference. The outer edge of the first limiting member 111 is referred to as T in fig. 5, and the inner edge of the second limiting member 121 is referred to as S in fig. 5. It will be appreciated that the central axis of the first circle coincides with the central axis of the first distribution circle; the central axis of the second circle coincides with the central axis of the second distribution circle.

By setting the diameter of the second circumference to be smaller than that of the first circumference, the second limiting member 121 can be ensured to be located in the interval between two adjacent first limiting members 111. The first limiting member 111 is prevented from being abutted and matched with the second limiting member 121 due to the overlarge diameter of the second circumference. That is, the diameter of the second circumference is smaller than the diameter of the first circumference, so that the first transmission member 110 can drive the reagent bottle 220 to rotate via the second transmission member 120.

It is understood that the second transmission member 120 is an elastic member, and the second transmission member 120 includes an original state and a deformed state. The second circumference refers to a second circumference formed by surrounding the inner edge of each of the second position-limiting members 121 in the original state. Each of the second stoppers 121 shown in fig. 5 is in a deformed state. The original state refers to a state in which the second transmission member 120 is not yet deformed; the deformed state refers to a state in which the second transmission member 120 is deformed to some extent by the guide of the first guide surface 111 a. It will be appreciated that the second transmission member 120 shown in fig. 4 may be in an original state or in a deformed state with a slight deformation.

Referring to fig. 5 again, in an embodiment, each of the first position-limiting members 111 extends along a radial direction of the first distribution circumference. When the first transmission member 110 rotates, the second transmission member 120 can be driven to move along with the first transmission member 110. Thus, the first limiting members 111 extend along the first distribution circumference, so as to ensure that the second transmission member 120 can be located at any position in the radial direction of the first distribution circumference, and the first limiting members 111 can be abutted against and matched with the second limiting members 121. Thus, the transmission relationship between the first transmission member 110 and the second transmission member 120 can be more stable.

Referring to fig. 5, a second guiding surface (not shown, the same applies below) is disposed at an end of the second transmission member 120 close to the first transmission member 110. The distance from the second guide surface to the central axis of the first distribution circumference gradually decreases in the rotational direction of the first transmission member 110. The second transmission member 120 in the second position can press against the first transmission member 110 via the second guide surface. With reference to fig. 5, specifically, for example, when the rotation direction is Q, the distance from the second guide surface on each second stopper 121 to the central axis of the second distribution circle along the direction Q gradually decreases.

Thus, when the second transmission member 120 is at the second position, i.e. the second guiding surface abuts against the first limiting member 111, the expanded second transmission member 120 has an elastic restoring force because the second transmission member 120 is an elastic member. It is understood that the elastic restoring force is directed from the second transmission member 120 toward the first transmission member 110 in the radial direction of the second distribution circumference. And the distance from the second guide surface to the first distributed circumferential central axis is gradually reduced along the rotation direction of the first transmission piece 110, that is, the elastic restoring force is not perpendicular to the second guide surface, that is, the elastic restoring force has a component force on the second guide surface. Thus, the second stopper 121 slides in the direction of the second guide surface relative to the second guide surface under the component force of the elastic restoring force to the second guide surface.

When the second transmission member 120 is at the second position and the first transmission member 110 rotates along the direction Q, the second transmission member 120 will move in the opposite direction to the direction Q relative to the first transmission member 110, that is, the second limiting member 121 will move in the opposite direction to the direction Q relative to the first limiting member 111. In this way, the distances from the second guide surfaces to the central axis of the second distribution circle along the direction Q are gradually reduced, so that the second stopper 121 can move in the direction opposite to the direction Q with respect to the first stopper 111 more conveniently. Therefore, the second transmission member 120 can slide into the space between two adjacent first limiting members 111 more easily.

With reference to fig. 5, in one embodiment, the distance from the first guiding surface 111a to the central axis of the first distribution circumference gradually increases in the direction from the second transmission member 120 to the first transmission member 110. With reference to the above embodiments, the first circumference is larger than the second circumference, so that the deformation of the second transmission member 120 is gradually increased when the second transmission member 120 moves towards the first transmission member 110. So that the second transmission member 120 reaches the second position to press against the first limiting member 111.

It is understood that the first guiding surface 111a may also be disposed on the second limiting member 121; correspondingly, the second guiding surface may also be disposed on the first limiting member 111. In other words, the second limiting member 121 may be provided with a first guide surface 111a having a gradually increasing distance from the central axis of the first distribution circumference in the direction from the second transmission member 120 toward the first transmission member 110; similarly, the first limiting member 111 may be provided with a second guiding surface, which gradually decreases in distance from the second distributed circumferential central axis along the rotation direction of the first transmission member 110. The effects that can be achieved by the first guide surface 111a and the second guide surface in the embodiments can also be achieved, and are not described herein again.

Referring to FIG. 6, in one embodiment, the reagent blending device 10 further includes a driving assembly 400. The following embodiments are described by taking the example that the first transmission member 110 is rotatably disposed on the supporting base 300, and the second transmission member 120 is disposed on the reagent bottle 220. It is understood that the technical effects of the embodiments can be achieved by the second transmission member 120 being rotatably disposed on the carrier base 300 and the first transmission member 110 being disposed on the reagent bottle 220.

The driving assembly 400 is connected to the first transmission member 110, and the driving assembly 400 is used for driving the second transmission member 120 to rotate. Specifically, the driving assembly 400 is connected to the first transmission member 110, and the driving assembly 400 drives the reagent bottle 220 connected to the second transmission member 120 to rotate through the transmission connection relationship between the first transmission member 110 and the second transmission member 120. In this way, the reagent in the reagent bottle 220 can be mixed.

Referring to fig. 2 and 6, in one embodiment, the driving assembly 400 is connected to the carrier 300 to drive the carrier 300 to rotate. The first transmission member 110 is capable of driving the reagent bottle 220 to rotate when the carrier holder 300 rotates. In conjunction with the above embodiments, the reagent cartridge 200 is mounted on the carrier support 300. So configured, the carrier 300 is driven to rotate by the driving assembly 400, and the first transmission member 110 can drive the reagent bottle 220 to rotate when the carrier 300 rotates. Therefore, not only the reagent bottles 220 can be rotated by the driving unit 400, but also the reagent bottles 220 provided in the reagent cartridge 200 can be revolved along with the carrier holder 300. Further, the effect of mixing the reagents can be improved.

Referring to fig. 2, fig. 3 and fig. 6 again, in an embodiment, the reagent blending device 10 further includes a fixing base 500, and a first gear 510 is disposed on the fixing base 500. The other end of the first transmission member 110 is provided with a second gear 112. The first gear 510 is meshed with the second gear 112. The fixed base 500 is provided with a first gear 510 engaged with the second gear 112. Thus, when the driving assembly 400 drives the carrier 300 to rotate relative to the fixing base 500, the second gear 112 will drive the reagent bottle 220 to rotate through the transmission assembly 100. Thus, the rotation and revolution of the reagent bottle 220 are realized. It will be appreciated that the first gear 510 remains stationary while the drive assembly 400 rotates the carrier support 300. The second gear 112 may be specifically disposed on an end of the first transmission member 110 away from the carrier plate 115.

Referring to fig. 2, fig. 3 and fig. 6, the driving assembly 400 includes a driving component 410 and a driving spindle 420, two ends of the driving spindle 420 are respectively connected to the supporting base 300 and the driving component 410 in a driving manner, and an axis of the driving spindle 420 is coincident with an axis of the first gear 510. The driving assembly 400 is disposed on the fixing base 500. Specifically, the fixing base 500 is provided with an accommodating cavity penetrating through the fixing base 500. One end of the driving spindle 420 passes through the accommodating cavity and is connected with the bearing support 300; the other end of the drive spindle 420 is connected to a drive 410. Thus, the driving member 410 can drive the driving spindle 420 to rotate, and transmit the rotation motion to the supporting base 300 through the driving spindle 420, so that the supporting base 300 rotates along with the driving spindle 420, thereby implementing the rotation and revolution of the reagent bottle 220. The axis of the driving main shaft 420 coincides with the axis of the first gear 510, so that the revolution of the reagent bottle 220 can be stably maintained.

Further, the driving assembly 400 further includes a first-stage deceleration structure 430 and a second-stage deceleration structure 440. In this way, it can be ensured that the driving member 410 has sufficient driving force to drive the carrier support 300 to rotate. Specific examples of the first-stage reduction structure 430 may include a reduction first gear 431 and a reduction second gear 432 that mesh with each other; a specific example of the second-stage reduction structure 440 may be a pulley 441 and a belt 442 in transmission connection with the pulley 441. The first deceleration gear 431 is connected to the driving unit 410, the belt 442 is connected to the second deceleration gear 432, and the pulley 441 is connected to the driving spindle 420. In this way, the carrier base 300 can be driven to rotate by the driving element 410, sequentially via the reduction first gear 431, the reduction second gear 432, the belt 442, the pulley 441, and the driving spindle 420.

Referring to fig. 1, in one embodiment, the reagent blending device 10 includes a plurality of reagent cartridges 200. A plurality of reagent cartridges 200 are arranged on the carrier holder 300 at regular intervals. The carrier 300 is provided with a plurality of first transmission members 110. The number and the installation positions of the first transmission members 110 correspond to those of the reagent cartridges 200. When the carrier holder 300 is rotated by the driving unit 400, the plurality of reagent cartridges 200 can revolve around the driving spindle 420, and the reagent bottles 220 in the plurality of reagent cartridges 200 can rotate on their own axes. Thereby improving the efficiency of the reagent mixing device 10.

Referring to fig. 3 and 4, in one embodiment, the reagent cartridge 200 is provided with a mounting hole 210. The reagent bottle 220 is rotatably disposed in the mounting hole 210. Second transmission member 120 is at least partially disposed outside mounting aperture 210. The relative position of the reagent bottle 220 can be restricted by the mounting hole 210, and the reagent bottle 220 is prevented from being separated from the reagent cartridge 200 by the double rotation of rotation and revolution. The second transmission member 120 is at least partially located outside the mounting hole 210 and can be in transmission connection with the first transmission member 110.

In one embodiment, a testing apparatus (not shown, the same applies below) includes the reagent mixing apparatus 10 described in the embodiments. The detection equipment is used for detecting and analyzing the reagent. Above-mentioned check out test set includes reagent mixing device 10, can improve the efficiency of reagent bottle 220 installation. Thereby improving the efficiency of the overall process of detecting the reagent. The type of the detection device is not limited, and for example, the detection device may be biochemical detection device, immunoassay device, biochemical immunoassay cascade detection device, or other devices requiring reagent mixing. The immunoassay device may be, for example, an electrochemiluminescence detection device.

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

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

Claims (11)

1. A transmission assembly is characterized by comprising a first transmission piece and a second transmission piece, wherein the second transmission piece is an elastic piece, the first transmission piece comprises a plurality of first limiting pieces which are distributed at intervals along a first distribution circumference, one end of each first limiting piece is provided with a first guide surface, and the first guide surfaces are obliquely arranged relative to the central axis of the first distribution circumference;

the second transmission piece at the first position is positioned at the interval between two adjacent first limiting pieces;

the first guide surface is in sliding fit with the second transmission piece, the first guide surface can guide the second transmission piece to move to a second position, and the second transmission piece at the second position abuts against the first limiting piece.

2. The transmission assembly according to claim 1, wherein the second transmission member includes a plurality of second limiting members spaced apart from each other along a second distribution circumference, each of the second limiting members is an elastic member, the second limiting member at the first position is disposed at a space between adjacent first limiting members, and the second limiting members are abutted against and engaged with the first limiting members.

3. The drive assembly of claim 2, wherein an outer edge of each of the first retaining members defines a first circumference and an inner edge of each of the second retaining members defines a second circumference, the second circumference having a diameter less than the first circumference diameter.

4. The transmission assembly according to claim 2, wherein a second guide surface is provided at an end of the second transmission member adjacent to the first transmission member, a distance from the second guide surface to the second distribution circumferential central axis gradually decreases along a rotation direction of the first transmission member, and the second transmission member at the second position can press the first transmission member via the second guide surface.

5. The drive assembly of claim 1, wherein each of the first retaining members extends radially of the first distribution circumference.

6. The drive assembly of claim 1, wherein the first guide surface is spaced from the central axis of the first distribution circumference by a distance that increases in a direction from the second drive member toward the first drive member.

7. The utility model provides a reagent mixing device for make the reagent mixing in the reagent bottle, its characterized in that, reagent mixing device includes:

the reagent box is used for bearing the reagent bottle, and the reagent bottle is rotatably arranged on the reagent box;

the reagent box is arranged on the bearing support;

the transmission assembly of any one of claims 1 to 6;

the first transmission piece is rotatably arranged on the bearing support, the second transmission piece is arranged on the reagent bottle, and the first transmission piece is used for driving the reagent bottle to rotate when rotating; or the second transmission piece is rotatably arranged on the bearing support, the first transmission piece is arranged on the reagent bottle, and the second transmission piece is used for driving the reagent bottle to rotate when rotating.

8. The reagent blending device of claim 7, further comprising a driving assembly, wherein the first transmission member is rotatably disposed on the bearing support, the second transmission member is disposed on the reagent bottle, and the driving assembly is connected with the first transmission member and used for driving the second transmission member to rotate.

9. The reagent blending device according to claim 8, wherein the reagent blending device comprises a plurality of reagent boxes, the reagent boxes are uniformly arranged on the bearing support at intervals, the first transmission members are multiple, the first transmission members are rotatably arranged on the bearing support, and the number and the arrangement positions of the first transmission members correspond to those of the reagent boxes.

10. The reagent blending device of claim 8, wherein the driving assembly is connected to the support to drive the support to rotate, and the first transmission member can drive the reagent bottle to rotate when the support rotates;

furthermore, the reagent blending device further comprises a fixing seat, a first gear is arranged on the fixing seat, a second gear is arranged at one end, far away from the first transmission piece, of the second transmission piece, and the first gear is meshed with the second gear.

11. A detection apparatus, comprising:

the reagent mixing apparatus of any one of claims 7 to 10.

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