Liquid mixing mechanism and luminescence immunoassay analyzer

Abstract

The embodiment of the utility model discloses a liquid mixing mechanism and luminescence immunity analyzer, the liquid mixing mechanism is used for mixing liquid in the reaction cup evenly, the liquid mixing mechanism comprises a base, a vibration motor, a damping piece and a cup base, the cup base is used for placing the reaction cup, the vibration motor is installed on the base through the damping piece, and the vibration motor is installed on the base through the damping piece. A driving shaft of the vibration motor is in transmission connection with the cup base and used for driving the cup base to vibrate, the cup base vibrates to drive the reaction cup to vibrate so as to evenly mix liquid in the reaction cup, cleaning and stirring consumables are not needed after even mixing, and therefore the even mixing mode is simple and easy; buffering and vibration absorption of the damping part can effectively control resonance of the base and the vibration motor, so that the stability and quality of uniform mixing are ensured, and the working stability of the luminescence immunoassay analyzer is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid mixing, in particular to a liquid mixing mechanism and a luminescent immunoassay analyzer. Background Art

[0002] In the luminescent immunoassay analyzer, a reaction cup is usually used to load samples and reagent solutions. After the solution in the reaction cup is fully mixed by a liquid mixing mechanism, the luminescence intensity of the object being detected is collected optically, and the concentration of the object being detected is calculated to provide a basis for the doctor's diagnosis.

[0003] Whether the sample and the reagent solution react fully will directly affect the test results. The existing method of mixing the liquids in the reaction cup is to mix them evenly. This mixing method requires cleaning of the mixing consumables after mixing, which is relatively troublesome. Utility Model Content

[0004] The utility model aims to provide a liquid mixing mechanism and a luminescent immunoassay analyzer, aiming to solve the technical problem that the existing mixing method of mixing the liquids in the reaction cup requires cleaning of the mixing consumables after mixing, which is relatively troublesome.

[0005] In a first aspect, the utility model provides a liquid mixing mechanism, which is used to mix the liquids in a reaction cup, and the liquid mixing mechanism includes a base, a vibration motor, a shock absorbing member and a cup holder;

[0006] The cup holder is used to place the reaction cup, the vibration motor is installed on the base through the shock absorber, the driving shaft of the vibration motor is transmission-connected with the cup holder and is used to drive the cup holder to vibrate, and the vibration of the cup holder can drive the reaction cup to vibrate to mix the liquid in the reaction cup.

[0007] Preferably, the shock absorbing member is provided with a first side and a second side which are arranged opposite to each other, the shock absorbing member is provided with a through hole which passes through the first side and the second side, the vibration motor is installed on the first side, the driving shaft of the vibration motor passes through the through hole, and is connected to the cup holder on the second side.

[0008] Preferably, a avoidance hole is provided on the base, the shock absorbing member is disc-shaped and is attached to the avoidance hole, and the avoidance hole is used to avoid the vibration motor.

[0009] Preferably, the shock absorbing member includes a first part and a second part connected to the first part, the first part is arranged in the avoidance hole and sleeved on the vibration motor, the first side is arranged on the first part, and the second side is arranged on the second part.

[0010] Preferably, the shock absorber is provided with four first connecting holes, which are distributed at circumferential intervals on the shock absorber, the base is provided with second connecting holes, and the liquid mixing mechanism also includes a first mounting member, which passes through the first connecting hole and is detachably connected to the second connecting hole, and the second connecting hole and the first mounting member are each provided with four, and are respectively arranged in one-to-one correspondence with each of the first connecting holes.

[0011] Preferably, the liquid mixing mechanism further comprises a limiting frame, which is mounted on the base and is provided with a limiting hole, and the cup holder is provided with a cup groove, and the reaction cup can be inserted into the cup groove through the limiting hole.

[0012] Preferably, the liquid mixing mechanism further comprises a positioning sleeve, the positioning sleeve is connected to the hole wall of the limiting hole, and the reaction cup can be inserted into the cup groove through the positioning sleeve.

[0013] Preferably, the positioning sleeve is a structural member made of plastic material;

[0014] The shock absorbing member is a structural member made of rubber material;

[0015] The vibration frequency of the vibration motor is between 10 Hz and 60 Hz.

[0016] In a second aspect, the utility model also provides a luminescent immunoassay analyzer, which includes an optical collection mechanism and a liquid mixing mechanism as described in any of the above embodiments, wherein the liquid mixing mechanism is used to mix the liquids in the reaction cup, and the optical collection mechanism is used to collect the luminescent intensity of the object to be detected in the reaction cup after mixing.

[0017] Preferably, the bottom of the reaction cup is arc-shaped, and the bottom wall of the cup holder of the liquid mixing mechanism is provided with a positioning hole, and the bottom of the reaction cup can be inserted into the positioning hole and abut against the hole wall of the positioning hole.

[0018] The following beneficial effects are achieved by using the embodiments of the present invention:

[0019] By adopting the liquid mixing mechanism and the luminescent immunoassay analyzer of the utility model, the reaction cup is placed in the cup holder, and the vibration motor drives the cup holder to vibrate. The vibration of the cup holder can drive the reaction cup to vibrate to mix the liquids in the reaction cup. After mixing, there is no need to clean the stirring consumables, so the mixing method is relatively simple and easy.

[0020] Furthermore, the vibration motor is installed on the base through the shock absorber, and the buffering vibration absorption of the shock absorber can effectively control the resonance of the base and the vibration motor, ensuring the stability and quality of mixing, and further ensuring the stability of the luminescent immunoassay analyzer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] in:

[0023] Figure 1 Schematic diagram of a liquid mixing mechanism in one embodiment.

[0024] Figure 2 for Figure 1 A top view of the liquid mixing mechanism shown.

[0025] Figure 3 for Figure 2 Middle AA section view.

[0026] Figure 4 for Figure 1 Exploded view of the liquid mixing mechanism shown.

[0027] Figure numbers: 10, reaction cup; 100, base; 110, avoidance hole; 120, second connecting hole; 200, vibration motor; 210, third connecting hole; 300, shock absorber; 310, first side; 320, second side; 330, through hole; 340, first part; 350, second part; 360, first connecting hole; 370, fourth connecting hole; 400, cup holder; 410, cup groove; 420, positioning hole; 510, first mounting part; 520, second mounting part; 530, third mounting part; 600, limiting frame; 610, pillar; 620, limiting plate; 621, limiting hole; 622, fifth connecting hole; 700, positioning sleeve. Specific embodiments

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] See also Figures 1 to 4 The liquid mixing mechanism of one embodiment is used to mix the liquids in the reaction cup 10. The liquid mixing mechanism includes a base 100, a vibration motor 200, a shock absorber 300 and a cup holder 400. The base 100 is a supporting base of the entire mechanism. The cup holder 400 is used to place the reaction cup 10 and can transmit the power of the vibration motor 200. The vibration motor 200 is installed on the base 100 through the shock absorber 300. The driving shaft of the vibration motor 200 is transmission-connected to the cup holder 400 and is used to drive the cup holder 400 to vibrate. The vibration of the cup holder 400 can drive the reaction cup 10 to vibrate so as to fully and stably mix the liquid in the reaction cup 10.

[0033] It can be understood that the reaction cup 10 is placed in the cup holder 400, and the vibration motor 200 drives the cup holder 400 to vibrate. The vibration of the cup holder 400 can drive the reaction cup 10 to vibrate to mix the liquids in the reaction cup 10. After mixing, there is no need to clean the stirring consumables, so the mixing method is relatively simple and easy.

[0034] Furthermore, the vibration motor 200 is installed on the base 100 through the shock absorber 300. The buffering and vibration absorption of the shock absorber 300 can effectively control the resonance of the base 100 and the vibration motor 200, ensuring the stability and quality of mixing, and further ensuring the stability of the luminescent immunoassay analyzer.

[0035] Generally speaking, the mounting holes of the vibration motor 200 are arranged at the head of the vibration motor 200 (on the side close to the driving shaft of the vibration motor 200 ). Therefore, in order to facilitate the connection between the vibration motor 200 and the shock absorber 300 , the head of the vibration motor 200 is usually installed on the shock absorber 300 .

[0036] In one embodiment, see Figure 3 and Figure 4The shock absorbing member 300 is provided with a first side 310 and a second side 320 which are arranged opposite to each other. The shock absorbing member 300 is provided with a through hole 330 which penetrates the first side 310 and the second side 320. The first side 310 is attached to the base 100, and the vibration motor 200 is installed on the first side 310. The driving shaft of the vibration motor 200 penetrates the through hole 330 and is connected to the cup holder 400 on the second side 320. The setting of the shock absorbing member 300 can avoid the vibration of the base 100 caused by the vibration of the vibration motor 200, thereby ensuring the working stability of the liquid mixing mechanism.

[0037] Furthermore, an avoidance hole 110 is provided on the base 100, and the shock-absorbing member 300 is disc-shaped and attached to the avoidance hole 110. The avoidance hole 110 is used to avoid the vibration motor 200. The avoidance hole 110 can be used as a movement release space for the vibration motor 200. The sufficient movement space and the buffering and vibration absorption of the shock-absorbing member 300 can effectively control the resonance of the base 100 and the vibration motor 200 caused by the movement of the vibration motor 200, thereby reducing the noise of the overall operation of the mechanism.

[0038] Furthermore, the shock absorber 300 includes a first part 340 and a second part 350 connected to the first part 340. The first part 340 is arranged in the avoidance hole 110, and there is an annular gap between the first part 340 and the avoidance hole 110, and is sleeved on the vibration motor 200. The first side 310 is arranged on the first part 340, and the second side 320 is arranged on the second part 350. By setting the first part 340, it is possible to prevent the vibration motor 200 from directly colliding with the hole wall of the avoidance hole 110 due to excessive swinging amplitude.

[0039] In another embodiment, when the mounting hole of the vibration motor 200 is set at the tail of the vibration motor 200, the vibration motor 200 is installed on the second side 320, and the setting of the shock absorber 300 can avoid the vibration of the base 100 caused by the vibration of the vibration motor 200, thereby ensuring the stability of the operation of the liquid mixing mechanism.

[0040] In one embodiment, the shock absorber 300 is provided with four first connecting holes 360, which are distributed at circumferential intervals on the shock absorber 300. The base 100 is provided with a second connecting hole 120. The liquid mixing mechanism also includes a first mounting member 510, which passes through the first connecting hole 360 ​​and is detachably connected to the second connecting hole 120. There are four second connecting holes 120 and four first mounting members 510, which are respectively arranged in one-to-one correspondence with each first connecting hole 360. By providing four first mounting members 510, the shock absorber 300 can be stably mounted on the base 100.

[0041] In one embodiment, see Figures 1 to 4The liquid mixing mechanism also includes a limiting frame 600, which is installed on the base 100 and is provided with a limiting hole 621. The cup holder 400 is provided with a cup groove 410. The reaction cup 10 can be inserted into the cup groove 410 from the limiting hole 621. The limiting hole 621 is used to circumferentially position the upper part of the reaction cup 10, which can effectively prevent the reaction cup 10 from swinging significantly.

[0042] Furthermore, the liquid mixing mechanism also includes a positioning sleeve 700, which is connected to the hole wall of the limiting hole 621. The reaction cup 10 can be inserted into the cup groove 410 by the positioning sleeve 700. The positioning sleeve 700 is used to circumferentially position the upper part of the reaction cup 10, which can effectively prevent the reaction cup 10 from swinging significantly.

[0043] In this embodiment, the positioning sleeve 700 is a structural component made of plastic material. Specifically, the positioning sleeve 700 is a structural component made of POM (polyformaldehyde). Polyformaldehyde is an engineering plastic with excellent performance. This material has a lubricating effect, so it can reduce the friction between the positioning sleeve 700 and the reaction cup 10, making it easier for the reaction cup 10 to be inserted into the cup groove 410 from the positioning sleeve 700.

[0044] The shock absorber 300 is a structural member made of rubber material, and the vibration motor 200 is a high-frequency magnetic levitation vibration motor 200, and its vibration frequency ranges from 10 Hz to 60 Hz. Specifically, the vibration frequency of the vibration motor 200 can be selected as 10 Hz, 20 Hz, 30 Hz, 40 Hz, 50 Hz or 60 Hz. The high-frequency vibration motor 200 serves as the power source of the entire mechanism and is used to drive the reaction cup 10 to swing. The high-frequency vibration motor 200 has the advantages of stable swing angle, small deviation, fast starting speed, low noise and stable performance. The high-frequency magnetic levitation vibration motor 200 is widely used in the sonic electric toothbrush industry. The high-frequency swing of the high-frequency vibration motor 200 and the vibration absorption and buffering design can effectively ensure the mixing effect of the liquid mixing mechanism, making the mixing action more efficient, stable and reliable.

[0045] In one embodiment, see Figure 4 The vibration motor 200 is provided with four third connection holes 210, each third connection hole 210 is arranged at intervals and is arranged in a ring around the head of the vibration motor 200, the shock absorber 300 is provided with a fourth connection hole 370, and the liquid mixing mechanism also includes a second mounting member 520, the second mounting member 520 passes through the fourth connection hole 370, and is detachably connected to the third connection hole 210, the fourth connection hole 370 and the second mounting member 520 are each provided with four, and are respectively arranged one by one corresponding to each third connection hole 210, and by arranging three third mounting members 530, the vibration motor 200 can be stably mounted on the shock absorber 300.

[0046] In one embodiment, the limit frame 600 includes a pillar 610 and a limit plate 620. There are four pillars 610 distributed at the four corners of the top surface of the base 100. The limit plate 620 and the base 100 are arranged opposite to each other. The limit hole 621 is arranged on the limit plate 620. The limit plate 620 is also provided with four fifth connecting holes 622. Each fifth connecting hole 622 is arranged one by one corresponding to each pillar 610. The liquid mixing mechanism also includes four third mounting members 530. Each third mounting member 530 can pass through each fifth connecting hole 622 and be detachably connected to each pillar 610 so as to install the four corners of the limit plate 620 on each pillar 610.

[0047] See also Figures 1 to 4 A luminescent immunoassay analyzer of one embodiment includes an optical collection mechanism and a liquid mixing mechanism of any of the above embodiments, wherein the liquid mixing mechanism is used to mix the liquids in the reaction cup 10, wherein the liquids in the reaction cup 10 include samples and reagent solutions, and the optical collection mechanism is used to collect the luminescent intensity of the object to be detected in the reaction cup 10 after mixing.

[0048] It can be understood that the reaction cup 10 is placed in the cup holder 400, and the vibration motor 200 drives the cup holder 400 to vibrate. The vibration of the cup holder 400 can drive the reaction cup 10 to vibrate to mix the liquids in the reaction cup 10. The high-frequency vibration motor 200 drives the reaction cup 10 to effectively perform high-frequency and micro-swings through the cup holder 400. Since the swing angle of the vibration motor 200 is stable and the deviation is small, the liquid in the reaction cup 10 can be fully mixed. Moreover, since the swing angle of the vibration motor 200 is stable and the deviation is small, the reaction cup 10 will not generate upward centrifugal force, thereby eliminating the problem of bouncing of the reaction cup 10 during the mixing process, reducing the occurrence of faults, and there is no need to clean the stirring consumables after mixing, so the mixing method is relatively simple and easy.

[0049] Furthermore, the vibration motor 200 is installed on the base 100 through the shock absorber 300. The buffering and vibration absorption of the shock absorber 300 can effectively control the resonance of the base 100 and the vibration motor 200, ensuring the stability and quality of mixing, and further ensuring the stability of the luminescent immunoassay analyzer.

[0050] Of course, in other embodiments, the liquid mixing mechanism can also be used in clinical chemistry analyzers, blood analyzers, microbiology analyzers or electrolyte analyzers, etc.

[0051] In one embodiment, the bottom of the reaction cup 10 is arc-shaped, and the bottom wall of the cup holder 400 of the liquid mixing mechanism is provided with a positioning hole 420. The bottom of the reaction cup 10 can be inserted into the positioning hole 420 and abut against the hole wall of the positioning hole 420. By making the bottom of the reaction cup 10 engage with the positioning hole 420, the reaction cup 10 can resonate with the cup holder 400, thereby preventing the vibration motor 200 from driving the cup holder 400 to vibrate and causing the reaction cup 10 to hit the groove wall of the cup groove 410.

[0052] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A liquid mixing mechanism, which is used to mix the liquids in a reaction cup, characterized in that: The liquid mixing mechanism comprises a base, a vibration motor, a shock absorbing member and a cup holder; The cup holder is used to place the reaction cup, the vibration motor is installed on the base through the shock absorber, the driving shaft of the vibration motor is transmission-connected with the cup holder and is used to drive the cup holder to vibrate, and the vibration of the cup holder can drive the reaction cup to vibrate to mix the liquid in the reaction cup.

2. The liquid mixing mechanism according to claim 1, characterized in that: The shock absorbing member is provided with a first side and a second side which are arranged opposite to each other, and the shock absorbing member is provided with a through hole which penetrates the first side and the second side, the vibration motor is installed on the first side, and the driving shaft of the vibration motor penetrates the through hole and is connected to the cup holder on the second side.

3. The liquid mixing mechanism according to claim 2, characterized in that: The base is provided with an avoidance hole, the shock absorbing member is in a disc shape and is attached to the avoidance hole, and the avoidance hole is used to avoid the vibration motor.

4. The liquid mixing mechanism according to claim 3, characterized in that: The shock absorbing member includes a first part and a second part connected to the first part, the first part is arranged in the avoidance hole and sleeved on the vibration motor, the first side is arranged on the first part, and the second side is arranged on the second part.

5. The liquid mixing mechanism according to claim 4, characterized in that: The shock absorbing member is provided with four first connecting holes, which are distributed at intervals in the circumferential direction of the shock absorbing member. The base is provided with a second connecting hole. The liquid mixing mechanism also includes a first mounting member, which passes through the first connecting hole and is detachably connected to the second connecting hole. The second connecting hole and the first mounting member are both provided with four, and are respectively arranged in one-to-one correspondence with each of the first connecting holes.

6. The liquid mixing mechanism according to claim 2, characterized in that: The liquid mixing mechanism also includes a limiting frame, which is installed on the base and is provided with a limiting hole. The cup holder is provided with a cup groove, and the reaction cup can be inserted into the cup groove through the limiting hole.

7. The liquid mixing mechanism according to claim 6, characterized in that: The liquid mixing mechanism further comprises a positioning sleeve, the positioning sleeve is connected to the hole wall of the limiting hole, and the reaction cup can be inserted into the cup groove through the positioning sleeve.

8. The liquid mixing mechanism according to claim 7, characterized in that: The positioning sleeve is a structural member made of plastic material; The shock absorbing member is a structural member made of rubber material; The vibration frequency of the vibration motor is between 10 Hz and 60 Hz.

9. A luminescent immunoassay analyzer, characterized in that: The luminescent immunoassay analyzer comprises an optical collection mechanism and the liquid mixing mechanism according to any one of claims 1 to 8, wherein the liquid mixing mechanism is used to mix the liquids in the reaction cup, and the optical collection mechanism is used to collect the luminescent intensity of the detected object in the reaction cup after mixing.

10. The luminescent immunoassay analyzer according to claim 9, characterized in that: The bottom of the reaction cup is arc-shaped, and a positioning hole is provided on the bottom wall of the cup seat of the liquid mixing mechanism. The bottom of the reaction cup can be inserted into the positioning hole and abut against the hole wall of the positioning hole.

Images