Sample frame blocking device in track of chemiluminescence immunoassay analyzer
By designing a sample rack blocking device with a motor and a rotating baffle, the liquid sputtering problem caused by collision during the transportation of the chemiluminescence immunoassay device is solved, and the safety and stability of the equipment are improved.
Patent Information
- Application Number
- CN202421223237.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-05-31
AI Technical Summary
Existing chemiluminescence immunoassays are prone to collisions during the transportation of the sample rack, resulting in liquid sputtering, causing biological contamination and instrument contamination. Existing solutions such as the use of brushes or simple limiting devices have defects, which cannot effectively solve the problem.
A sample rack blocking device including a motor, a first support frame, an adapter block and a baffle is designed. The motor drives the adapter block and baffle to rotate, so as to realize the blocking and release control of the sample rack to avoid liquid sputtering.
It effectively avoids liquid sputtering caused by collision of sample holders, increases the safety and stability of the equipment, and solves the problems of insufficient brush wear and simple limiting device design in the prior art.
Smart Images
Figure CN222913678U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical device products, in particular to a sample rack blocking device in a chemiluminescent immunoassay analyzer track. Background Art
[0002] When the fully automatic chemiluminescence immunoassay analyzer uses tracks to transport sample racks, it needs to pause accurately and smoothly during specific operation steps or positions such as loading and unloading samples, adding reagents, and testing.
[0003] In the current equipment, when the sample rack is transported, a collision will occur after the limiting device intercepts the sample rack, and the liquid in the sample rack will splash out, causing biological contamination and instrument contamination. For example, in the prior art, brushes, simple limiting devices or reducing the transportation speed are usually used to reduce collisions. However, although the brush as a buffer can partially alleviate the collision, after long-term use, the brush will gradually wear out and become ineffective due to repeated friction, lose its buffering effect, and may aggravate the collision problem; the design of a simple limiting device cannot effectively solve the fundamental problem of strong collision force, but only temporarily reduces the impact of the collision; reducing the impact force of the collision by reducing the transportation speed of the sample rack, although this method has a certain effect, it greatly reduces the detection efficiency of the entire equipment. The above methods all have certain disadvantages.
[0004] Therefore, the prior art needs to be solved urgently. Utility Model Content
[0005] The purpose of the utility model is to solve the problems in the background technology and provide a sample rack blocking device in the track of a chemiluminescent immunoassay analyzer. The utility model provides a sample rack blocking device in the track of a chemiluminescent immunoassay analyzer, which avoids liquid splashing caused by collision of the sample rack and increases safety and stability.
[0006] The above technical purpose of the utility model is achieved through the following technical solutions:
[0007] A sample rack blocking device in a chemiluminescent immunoassay track comprises a motor, a first support frame, an adapter block and a baffle, wherein the motor is mounted on the first support frame, the adapter block is connected to the output shaft of the motor, and the baffle is fixedly connected to the adapter block.
[0008] The sample rack blocking device in the track of a chemiluminescent immunoassay analyzer as described above also includes a sensor support plate, a first optical coupling sensor and a second optical coupling sensor, the sensor support plate includes a fixed portion and a bent portion, the fixed portion is fixedly connected to the lower end of the first support frame, the bent portion is perpendicular to the fixed portion, and the first optical coupling sensor and the second optical coupling sensor are arranged on the bent portion.
[0009] In the sample rack blocking device in the track of a chemiluminescent immunoassay analyzer as described above, the lower end of the baffle is provided with a first baffle matched with the first optical coupling sensor and a second baffle matched with the second optical coupling sensor.
[0010] In the sample rack blocking device in the track of a chemiluminescent immunoassay analyzer as described above, the central angle between the first blocking piece and the second blocking piece is 30° to 60°.
[0011] The sample rack blocking device in the track of a chemiluminescent immunoassay analyzer as described above also includes a limit plate, a first limit column and a second limit column. The limit plate is fixedly connected to the adapter block and is located on a side close to the motor. The limit plate has a protruding card plate portion, and the card plate portion is located between the first limit column and the second limit column. The first limit column and the second limit column are fixedly arranged on the first support frame, and a limit area for movement of the card plate portion is formed between the first limit column and the second limit column.
[0012] The sample rack blocking device in the track of a chemiluminescent immunoassay analyzer as described above also includes a second support frame and a third support frame, wherein the second support frame and the third support frame are both fixedly connected to the first support frame, and the second support frame and the third support frame have the same shape and structure and are parallel to each other.
[0013] In the sample rack blocking device in the track of a chemiluminescent immunoassay analyzer as described above, a limit stopper is provided on the top of the baffle.
[0014] In the sample rack blocking device in the track of a chemiluminescent immunoassay analyzer as described above, the motor is a stepping motor.
[0015] In the sample rack blocking device in the track of a chemiluminescent immunoassay analyzer as described above, the baffle, the adapter block, the limit plate, the first support frame, the second support frame, the third support frame, and the sensor support plate are all formed by stamping sheet metal materials.
[0016] In the sample rack blocking device in the track of a chemiluminescent immunoassay analyzer as described above, the motor is fixedly connected to the first support frame via a spring washer integrated screw, the limit plate is fixedly connected to the adapter block via a spring washer integrated screw, and the baffle is fixedly connected to the adapter block via a spring washer integrated screw.
[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0018] 1. A sample rack blocking device in the track of a chemiluminescence immunoassay analyzer provided by the present utility model. When the sample rack needs to be blocked, the motor drives the adapter block to rotate clockwise, and then drives the baffle to rotate clockwise to the blocking state to block and limit the sample rack. When the sample rack needs to be released, the motor drives the adapter block to rotate counterclockwise, and then drives the baffle to rotate counterclockwise to the release state to facilitate the passage of the sample rack. The sample rack blocking device provided by the present utility model realizes the blocking or release of the sample rack, avoids the problem that the brush blocking will fail due to wear, and does not need to reduce the transportation speed of the sample rack. The blocking device has a simple structure and is easy to operate.
[0019] 2. A sample rack blocking device in the track of a chemiluminescence immunoassay analyzer provided by the present utility model further includes a first opto-coupler sensor and a second opto-coupler sensor, and a first baffle and a second baffle are arranged at the lower end of the baffle. The setting of the above components makes the control of the baffle blocking or releasing accurate, the transportation and stopping of the sample rack stable, and the liquid sputtering caused by the collision of the sample rack will not occur, increasing the safety and stability.
[0020] 3. A sample rack blocking device in the track of a chemiluminescence immunoassay analyzer provided by the present utility model. When the limit plate moves together with the baffle, its moving track and amplitude are limited within a fixed interval by the first limit post and the second limit post, preventing the baffle from moving beyond the expected range and ensuring the stability and accuracy of its movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following description is only one embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0022] Figure 1 FIG. 15 is a schematic perspective view of the back of a sample rack blocking device in the track of a chemiluminescence immunoassay analyzer provided in Embodiment 1 of the present utility model;
[0023] Figure 2 FIG. 19 is a schematic perspective view of the back of a sample rack blocking device in the track of a chemiluminescence immunoassay analyzer provided in Embodiment 2 of the present utility model;
[0024] Figure 3 FIG. 23 is a schematic perspective view of the front of a sample rack blocking device in the track of a chemiluminescence immunoassay analyzer provided by the present utility model;
[0025] Figure 4 FIG. 27 is a schematic view of the back structure of a sample rack blocking device in the track of a chemiluminescence immunoassay analyzer provided in Embodiment 2 of the present utility model;
[0026] Figure 5 is Figure 3 the A-A sectional view of
[0027] In the figure, 1 - baffle, 2 - limit stop, 3 - adapter block, 4 - limit plate, 5 - first limit post, 6 - second limit post, 7 - motor, 8 - first support frame, 9 - second support frame, 10 - third support frame, 11 - sensor support plate, 12 - first opto-coupler sensor, 13 - second opto-coupler sensor, 14 - spring washer integral screw, 101 - first retaining piece, 102 - second retaining piece, 401 - clamping plate part, 1101 - fixing part, 1102 - bending part. Specific embodiments
[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0029] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time.
[0030] Embodiment 1:
[0031] Please refer to Figure 1 and Figure 3 A sample rack blocking device in the track of a chemiluminescence immunoassay analyzer provided in this embodiment includes a motor 7, a first support frame 8, an adapter block 3, and a baffle 1. The motor 7 is installed on the first support frame 8, the adapter block 3 is connected to the output shaft of the motor 7, and the baffle 1 is fixedly connected to the adapter block 3.
[0032] Preferably, it further includes a sensor support plate 11, a first opto-coupler sensor 12, and a second opto-coupler sensor 13. The sensor support plate 11 includes a fixing part 1101 and a bending part 1102. The fixing part 1101 is fixedly connected to the lower end of the first support frame 8, the bending part 1102 is perpendicular to the fixing part 1101, and the first opto-coupler sensor 12 and the second opto-coupler sensor 13 are disposed on the bending part 1102.
[0033] Preferably, a first baffle 101 cooperating with the first opto-coupler sensor 12 and a second baffle 102 cooperating with the second opto-coupler sensor 13 are provided at the lower end of the baffle 1. The functions of the first opto-coupler sensor 12 and the second opto-coupler sensor 13 are to accurately detect the position of the baffle 1 and confirm its state, and convert the different position states of the baffle 1 into electrical signals and feedback them to the control system. The control system controls the baffle 1 to block or release. In this embodiment, both the first opto-coupler sensor 12 and the second opto-coupler sensor 13 are opto-coupler sensors of model UI2444 purchased from Zhuhai Younite Optoelectronic Technology Co., Ltd.
[0034] Preferably, the central angle between the first baffle 101 and the second baffle 102 is 30° - 60°. More preferably, the central angle between the first baffle 101 and the second baffle 102 is 30°. Under this condition, the baffle 1 will not be mechanically interfered due to too small an angle during movement, nor will there be a response delay due to too large an angle.
[0035] In this embodiment, two sample rack blocking devices are provided in the track of the fully automatic chemiluminescence immunoassay analyzer. When a sample rack is detected to enter the track, the first sample rack blocking device starts to work. The motor 7 is started, and the output shaft of the motor 7 drives the adapter block 3 to rotate clockwise, driving the baffle 1 to rotate, and at the same time driving the first baffle 101 and the second baffle 102 to rotate. When the first opto-coupler sensor 12 senses the first baffle 101, the baffle 1 is in a blocking state, and the baffle 1 blocks the sample rack transported over. When the subsequent sample rack starts to enter the track for transportation, the motor 7 of the first sample rack blocking device is started, and the output shaft of the motor 7 drives the adapter block 3 to rotate counterclockwise, driving the baffle 1 to rotate, and at the same time driving the first baffle 101 and the second baffle 102 to rotate. When the second opto-coupler sensor 13 senses the second baffle 102, the baffle 1 is in a releasing state, and the baffle 1 releases the sample rack transported over. Repeating like this, the automatic blocking and releasing of the sample rack are realized.
[0036] Embodiment 2:
[0037] Please refer to Figure 2, which is different from Embodiment 1. A sample rack blocking device in the track of a chemiluminescence immunoassay analyzer provided in this embodiment preferably further includes a limiting plate 4, a first limiting post 5 and a second limiting post 6. The limiting plate 4 is fixedly connected to the adapter block 3 and is located on the side close to the motor 7. The limiting plate 4 has a protruding clamping plate portion 401. The clamping plate portion 401 is located between the first limiting post 5 and the second limiting post 6. The first limiting post 5 and the second limiting post 6 are fixedly arranged on the first support frame 8. A limiting area for the movement of the clamping plate portion 401 is formed between the first limiting post 5 and the second limiting post 6. Under this condition, when the limiting plate 4 moves together with the baffle 1, its movement track and amplitude are limited within a fixed interval by the first limiting post 5 and the second limiting post 6. The first limiting post 5 and the second limiting post 6 play a mechanical limiting role, further preventing the baffle 1 from moving beyond the expected range and ensuring the stability and accuracy of its movement.
[0038] Please refer to Figure 3 , preferably, it further includes a second support frame 9 and a third support frame 10. The second support frame 9 and the third support frame 10 are both fixedly connected to the first support frame 8. The second support frame 9 and the third support frame 10 have the same shape and structure and are parallel to each other, thus increasing the structural stability of the device.
[0039] Preferably, a limiting stop block 2 is provided at the top of the baffle 1.
[0040] Preferably, the motor 7 is a stepper motor. When the stepper motor stops, due to the holding torque, it can maintain the current position without power supply, so that the blocking device can always maintain a stable blocking state and ensure the blocking effect.
[0041] Preferably, the baffle 1, the limiting plate 4, the first support frame 8, the second support frame 9, the third support frame 10, and the sensor support plate 11 are all formed by stamping sheet metal materials, which can reduce costs and increase strength.
[0042] Please refer to Figure 4 - Figure 5 , preferably, the motor 7 is fixedly connected to the first support frame 8 through an elastic washer integral screw 14, the limiting plate 4 is fixedly connected to the adapter block 3 through an elastic washer integral screw 14, and the baffle 1 is fixedly connected to the adapter block 3 through an elastic washer integral screw 14. Using the elastic washer integral screw 14 as a connecting piece simplifies the assembly and increases the pre-tightening force.
[0043] In this embodiment, two sample rack blocking devices are provided in the track of the fully automatic chemiluminescence immunoassay analyzer. When a sample rack is detected to enter the track, the first sample rack blocking device starts to work. The motor 7 is started, and the output shaft of the motor 7 drives the adapter block 3 to rotate clockwise, driving the limit plate 4 to rotate. The limit plate 4 rotates clockwise between the first limit post 5 and the second limit post 6. At the same time, the adapter block 3 drives the baffle 1 to rotate, and at the same time, the first baffle 101 and the second baffle 102 rotate. When the first opto-coupler sensor 12 senses the first baffle 101, the baffle 1 is in the blocking state, and the baffle 1 blocks the sample rack transported over; when the subsequent sample rack starts to enter the track for transportation, the motor 7 of the first sample rack blocking device is started, and the output shaft of the motor 7 drives the adapter block 3 to rotate counterclockwise, driving the limit plate 4 to rotate. The limit plate 4 rotates counterclockwise between the first limit post 5 and the second limit post 6. At the same time, the adapter block 3 drives the baffle 1 to rotate, and at the same time drives the first baffle 101 and the second baffle 102 to rotate. When the second opto-coupler sensor 13 senses the second baffle 102, the baffle 1 is in the releasing state, and the baffle 1 releases the sample rack transported over. Repeating this way, the automatic blocking and releasing of the sample rack are realized.
[0044] The sample rack blocking device in the chemiluminescence immunoassay analyzer track provided by the present utility model has precise control through the cooperation of the motor 7 with the first opto-coupler sensor 12 and the second opto-coupler sensor 13. The generated collision is negligible, the sample rack stops and releases stably, and liquid sputtering will not be caused. It avoids the liquid sputtering caused by the collision of the sample rack, and increases the safety and stability.
[0045] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and retouches can still be made, and these improvements and retouches should also be regarded as the protection scope of the present utility model.
Claims
1. A sample rack blocking device in a chemiluminescent immunoassay track, characterized in that: The invention comprises a motor (7), a first support frame (8), a transfer block (3) and a baffle (1), wherein the motor (7) is mounted on the first support frame (8), the transfer block (3) is connected to the output shaft of the motor (7), and the baffle (1) is fixedly connected to the transfer block (3).
2. A sample rack blocking device in a chemiluminescent immunoassay analyzer track according to claim 1, characterized in that: The invention also comprises a sensor support plate (11), a first optical coupling sensor (12) and a second optical coupling sensor (13); the sensor support plate (11) comprises a fixing portion (1101) and a bending portion (1102); the fixing portion (1101) is fixedly connected to the lower end of the first support frame (8); the bending portion (1102) is perpendicular to the fixing portion (1101); and the first optical coupling sensor (12) and the second optical coupling sensor (13) are arranged on the bending portion (1102).
3. A sample rack blocking device in a chemiluminescent immunoassay analyzer track according to claim 2, characterized in that: The lower end of the baffle (1) is provided with a first baffle (101) matched with the first optical coupling sensor (12) and a second baffle (102) matched with the second optical coupling sensor (13).
4. The sample rack blocking device in the track of a chemiluminescent immunoassay analyzer according to claim 3, characterized in that: The central angle between the first baffle (101) and the second baffle (102) is 30° to 60°.
5. The sample rack blocking device in the track of a chemiluminescent immunoassay analyzer according to claim 3, characterized in that: The invention also comprises a limit plate (4), a first limit column (5) and a second limit column (6); the limit plate (4) is fixedly connected to the adapter block (3) and is located on a side close to the motor (7); the limit plate (4) has a protruding clamping plate portion (401); the clamping plate portion (401) is located between the first limit column (5) and the second limit column (6); the first limit column (5) and the second limit column (6) are fixedly arranged on the first support frame (8); and a limit area for movement of the clamping plate portion (401) is formed between the first limit column (5) and the second limit column (6).
6. The sample rack blocking device in the track of a chemiluminescent immunoassay analyzer according to claim 5, characterized in that: It also comprises a second support frame (9) and a third support frame (10), wherein the second support frame (9) and the third support frame (10) are both fixedly connected to the first support frame (8), and the second support frame (9) and the third support frame (10) have the same shape and structure and are parallel to each other.
7. The sample rack blocking device in the track of a chemiluminescent immunoassay analyzer according to claim 6, characterized in that: A limit stopper (2) is provided on the top of the baffle (1).
8. The sample rack blocking device in the track of a chemiluminescent immunoassay analyzer according to claim 7, characterized in that: The motor (7) is a stepping motor.
9. The sample rack blocking device in the track of a chemiluminescent immunoassay analyzer according to claim 8, characterized in that: The baffle plate (1), the limiting plate (4), the first support frame (8), the second support frame (9), the third support frame (10), and the sensor support plate (11) are all formed by stamping sheet metal materials.
10. The sample rack blocking device in the track of a chemiluminescent immunoassay analyzer according to claim 8, characterized in that: The motor (7) is fixedly connected to the first support frame (8) via a spring washer integrated screw (14), the limit plate (4) is fixedly connected to the adapter block (3) via a spring washer integrated screw (14), and the baffle (1) is fixedly connected to the adapter block (3) via a spring washer integrated screw (14).