Clamping strip detection assembly

Abstract

The clamping strip detection assembly comprises a limiting device, a detection device and a power device, the detection device is fixed to the upper end of the limiting device, the power device provides power for the detection device, a sliding groove is formed in the limiting device, and the clamping strip is arranged in the sliding groove. A to-be-detected clamping strip slides back and forth on the sliding groove, a microswitch is connected to the side face of the sliding groove, a detection position is arranged on the sliding groove, when the clamping strip moves to the detection position on the sliding groove, mechanical signal transmission is generated between the clamping strip and the microswitch, the microswitch controls the clamping strip to stay at the detection position, and the clamping strip is driven by the microswitch to move back and forth. And the detection device performs optical detection on the clamping strip through the detection hole in the limiting device.

Description

Technical Field

[0001] The utility model belongs to the technical field of fluorescent immunoassay detection equipment, in particular to a card strip detection component used in an analyzer. Background Art

[0002] Card strip recognition technology is a commonly used detection technology in biomedical testing. This technology uses the characteristic that the analyzed substance will produce fluorescence under the excitation of light of a specific wavelength to perform qualitative and quantitative detection. Card strip recognition technology has a series of advantages such as high sensitivity, strong specificity, fast detection speed, safety and stability, so it is widely used in clinical testing and has broad application prospects in the detection of endocrine diseases, infectious diseases, obstetrics and gynecology, tumor markers, genetic diseases, blood and cytology.

[0003] The design of the card strip detection component is particularly important for the card strip identification technology. In the Chinese patent document CN208968992U, a card pressing and positioning mechanism for a detection reagent production line is disclosed, including a first front blocking block and a first rear blocking block installed on one side of the conveyor belt, a first positioning block is arranged between the first front blocking block and the first rear blocking block, the first front blocking block, the first rear blocking block and the first positioning block are respectively connected to the first front blocking cylinder, the first rear blocking cylinder and the first positioning cylinder, the first front blocking block and the first rear blocking block are used to move to the conveyor belt to prevent the movement of the rear bottom shell after the paper strip is installed, and the first positioning block is used to move to the conveyor belt to position the rear bottom shell after the paper strip is installed between the first front blocking block and the first rear blocking block.

[0004] In the above technical solution, although during the process of conveying the test card strip, the stopper is used to position the card strip on the production line to facilitate its inspection, saving manpower and time. However, in the actual use process, after the card strip enters the detection position, there is a deviation due to the motor state or human factors, and the position of the detection device is not fixed, which may affect the card strip detection result.

[0005] Therefore, it is necessary to develop a new card strip detection component that can allow the card strip to accurately stay at the position to be detected after entering the detection position. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a card strip detection component which can accurately locate the position of the detection port where the card strip is located.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: a card strip detection component, including a limit device, a detection device and a power device, the detection device is fixed at the upper end of the limit device, and the power device provides power for the detection device. It is characterized in that a slide groove is arranged in the limit device, and the card strip to be detected slides back and forth on the slide groove, a micro switch is connected to the side of the slide groove, a detection position is arranged on the slide groove, the micro switch controls the card strip to stay at the detection position, and the detection device performs optical detection on the card strip through the detection hole on the limit device.

[0008] The slide groove arranged in the limit device of the card strip detection assembly is used to guide the card strip to be detected to slide back and forth in the slide groove, which is convenient for the transmission of the card strip. A micro switch is provided on one side of the slide groove. When the card strip moves to the detection position set on the slide groove, a mechanical signal is transmitted with the micro switch. After the micro switch is triggered, an electrical signal is transmitted, thereby controlling the card strip to stay at the detection position, ensuring that the card strip stops accurately at the detection position so as to carry out optical detection of the detection device.

[0009] Preferably, the limiting device includes a bracket, a support column, the slide groove, a fixing plate, a transmission block and the micro switch, the support column is connected to the lower end of the bracket, and the slide groove is arranged on the bracket.

[0010] The support column is connected to the lower end of the bracket, providing a stable support and fixing foundation for the entire device. The slide groove provided on the bracket forms a straight track parallel to the surface of the bracket, which is convenient for the transmission of the card strip.

[0011] Preferably, the bracket is provided with a mounting groove at the side end of the detection position, the transmission block and the fixing plate are located in the mounting groove, the inner edge of the mounting groove matches the outer edge shape of the transmission block, and the fixing plate is provided on the transmission block to prevent the transmission block from shifting in position.

[0012] The purpose of the mounting groove is to accommodate and fix the transmission block and the fixing plate, so as to ensure the stability and positioning accuracy of the transmission block during use. The transmission block is designed to adapt to the shape of the inner peripheral edge of the mounting groove, and the shape of its outer peripheral edge matches the inner peripheral edge of the mounting groove to form a tight fitting structure. At the same time, in order to further ensure the stability of the transmission block in the mounting groove, a fixing plate is provided on the transmission block. The fixing plate further fixes the position of the transmission block to prevent it from shifting during operation, thereby ensuring the efficiency and reliability of the card strip detection assembly during operation.

[0013] Preferably, the mounting groove has a first opening and a second opening, the transmission block is composed of a front convex portion, a rear convex portion and two shock-absorbing blocks, the front convex portion is an arc-shaped structure, the front convex portion extends out of the first opening, and the rear convex portion of the transmission block contacts the micro switch when extending outward from the second opening.

[0014] The arc-shaped structure design of the front convex part of the transmission block makes it easier to extend out of the first opening. The extension of the front convex part conducts effective mechanical interaction with the card strip transmitted on the slide groove through the first opening. The main function of the shock-absorbing block is to absorb and buffer the vibration and impact force that may be generated by the transmission block during movement, which can effectively reduce the wear of the transmission block on the mounting groove during movement and extend the service life of the entire device.

[0015] Preferably, the micro switch is connected to the side of the installation groove, and the front end surface of the micro switch has an outer convex strip, and the outer convex strip contacts the rear convex part to realize transmission.

[0016] The micro switch is connected to the side of the mounting slot to ensure accurate alignment between the micro switch and the transmission block, making the entire system more compact and efficient. The design intention of the outer convex strip is to ensure that when the rear convex part of the transmission block contacts the micro switch, the transmission can be smoothly realized. The design of the rear convex part of the transmission block and the outer convex strip on the micro switch enables the micro switch to be accurately triggered, ensuring that the movement of the transmission block can be effectively transmitted to the micro switch.

[0017] Preferably, a limiting plate is provided on the bracket.

[0018] The limit plate is designed to prevent the motor from running incorrectly and causing the detection device to exceed the safe active position, causing collision with other mechanical parts.

[0019] Preferably, the detection device includes a light head, a light head mounting plate, a linear guide rail, a light head slider and a light head slider mounting plate, the linear guide rail is fixed to the upper end of the limit device, the lower end surface of the light head slider is in contact with the linear guide rail and slides back and forth along the linear guide rail, the light head slider is fixed under the light head mounting plate through the light head slider mounting plate, and the light head is welded to the side of the light head mounting plate.

[0020] Preferably, the light head is arranged above the limit device and corresponds to the position of the detection hole on the limit device, so that the light head can collect light signals from the card strip located below the light head through the detection hole. The light head includes a light head shielding cover and a light head detection block.

[0021] The linear guide is fixed to the upper surface of the bracket, providing a stable and reliable moving path.

[0022] Preferably, the skylight head mounting plate is connected to the power device via an inner rod, and the power device is a screw motor that provides power for the movement of the detection device.

[0023] The power device uses a screw motor, which can provide precise linear motion and provide a stable and reliable power source for the movement of the detection device. During use, when the detection device needs to move, the screw motor will receive the command of the control system and start rotating the screw, making the whole process smooth and precise, ensuring that the light head can always maintain the best working position during the detection process.

[0024] Preferably, an optical coupling block is fixed to the side end surface of the skylight head mounting plate, and an optical coupling is fixed to the side surface of the lead screw motor, and the optical coupling is used in conjunction with the optical coupling block.

[0025] The design of the optocoupler and the optocoupler stopper is to provide precise position control and process safety, ensuring that the card strip detection component does not exceed the set range of motion. This ensures the operational safety of the device and prevents overshoot and collision in the mechanical process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the main structure of the utility model Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the main structure of the utility model Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0030] Figure 4 This Figure 1 Schematic diagram of the main structure of the middle limit device;

[0031] Figure 5 yes Figure 4 Schematic diagram of the local structure after the fixing plate is removed;

[0032] Figure 6 yes Figure 5 Structural diagram of the micro switch and the transmission block;

[0033] Figure 7 yes Figure 1 The schematic diagram of the structure of the detection device and the power device in the middle part;

[0034] Figure 8 yes Figure 1 Schematic diagram of the structure of the central light head;

[0035] Wherein: 1- bracket, 2- support column, 3- slide groove, 4- detection hole, 5- detection position, 6- mounting groove, 7- transmission block, 8- fixing plate, 9- first opening, 10- second opening, 11- front convex part, 12- shock absorbing block, 13- rear convex part, 14- micro switch, 15- outer convex strip, 16- limit plate, 17- light head, 18- light head mounting plate, 19- light head slider, 20- light head slider mounting plate, 21- linear guide rail, 22- lead screw motor, 23- inner rod, 24- light head shielding cover, 25- light head detection block, 26- through hole, 27- optocoupler block, 28- optocoupler. DETAILED DESCRIPTION

[0036] As attached Figure 1-Figure 8 As shown, the card strip detection assembly of this embodiment includes a limit device, a detection device and a power device. The detection device is fixed to the upper end of the limit device, and the power device provides power for the detection device. It is characterized in that a slide groove 3 is arranged in the limit device, and the card strip to be detected slides back and forth on the slide groove 3. A micro switch 14 is connected to the side of the slide groove 3, and a detection position 5 is arranged on the slide groove 3. The micro switch 14 controls the card strip to stay at the detection position 5, and the detection device performs optical detection on the card strip through the detection hole 4 on the limit device.

[0037] like Figure 1 , Figure 2 As shown, the limiting device includes a bracket 1, a support column 2, a slide groove 3, a fixing plate 8, a transmission block 7 and a micro switch 14. The support column 2 is connected to the lower end of the bracket 1, and the slide groove 3 is provided on the bracket 1.

[0038] Specific as Figure 4 , Figure 5 As shown, the bracket 1 is provided with a mounting groove 6 at the side end of the detection position 5, the transmission stop block 7 and the fixing plate 8 are located in the mounting groove 6, the fixing plate 8 is clamped in the mounting groove 6 and is located above the transmission stop block 7 to further fix the position of the transmission stop block 7, the inner peripheral edge of the mounting groove 6 matches the shape of the outer peripheral edge of the transmission stop block 7, and the transmission stop block 7 is connected with the fixing plate 8 to prevent the transmission stop block 7 from shifting in position.

[0039] The shape of the outer edge of the transmission block 7 matches the inner edge of the mounting groove 6 to form a tightly fitted structure. The mounting groove 6 is provided with a first opening 9 and a second opening 10. The transmission block 7 is composed of a front convex portion 11, a rear convex portion 13 and two shock-absorbing blocks 12.

[0040] Specific as Figure 5 , Figure 6As shown, the front convex portion 11 is an arc-shaped structure, and the front convex portion 11 extends out of the first opening 9. When the rear convex portion 13 of the transmission block 7 extends outward from the second opening 10, it contacts the micro switch 14. The micro switch 14 is connected to the side of the mounting groove 6. The front end surface of the micro switch 14 has an outer convex strip 15. The outer convex strip 15 contacts the rear convex portion 13 to realize transmission. The micro switch 14, the mounting groove 6 and the detection position 5 are precisely aligned in the horizontal direction.

[0041] It should be noted that the rear convex portion 13 of the transmission block 7 is designed to be slightly smaller than the opening length of the second opening 10, so that it can extend outward from the second opening 10. After the card strip is transported to the detection position 5, the front convex portion 11 of the transmission block 7 contacts the card strip, so that the transmission block 7 moves in the installation groove 6. At this time, the rear convex portion 13 will extend outward through the second opening 10 and finally contact the micro switch 14. This contact is the key to the signal transmission between the transmission block 7 and the micro switch 14. When the rear convex portion 13 contacts the micro switch 14, the micro switch 14 will be triggered, thereby controlling the card strip to stay at the detection position 5.

[0042] like Figure 3 As shown, a limiting plate 16 is also provided on the bracket 1 .

[0043] It should be noted that the specific installation position of the limit plate 16 is the end of the safe movable position of the light head mounting plate 18, which is used to prevent the screw motor 22 from operating incorrectly so that the detection device exceeds the safe movable position and collides with other mechanical parts.

[0044] like Figure 1 As shown, the detection device includes a light head 17, a light head mounting plate 18, a linear guide rail 21, a light head slider 19 and a light head slider mounting plate 20. The linear guide rail 21 is fixed to the upper end of the limit device. The lower end surface of the light head slider 19 is in contact with the linear guide rail 21 and slides back and forth along the linear guide rail 21. The light head slider 19 is fixed under the light head mounting plate 18 through the light head slider mounting plate 20. The light head 17 is welded to the side of the light head mounting plate 18.

[0045] The light-collecting head 17 is arranged above the limiting device and corresponds to the position of the detection hole 4 on the limiting device, so that the light-collecting head 17 collects the light signal of the card strip located below the light-collecting head 17 through the detection hole 4 .

[0046] Specific as Figure 7 , Figure 8 As shown, the skylight head 17 includes a skylight head shielding cover 24 and a skylight head detection block 25. The skylight head mounting plate 20 is connected to the power device through an inner rod 23, and the power device is a screw motor 22, which provides power for the movement of the detection device.

[0047] It should be noted that the inner rod 23 of the screw motor 22 has an interference fit with a through hole 26 provided on the skylight head mounting plate 18, and has a high load-bearing capacity, so that the detection device can work reliably under impact and vibration loads, and the entire detection device can move smoothly and accurately within the required range.

[0048] An optical coupler block 27 is fixed to the side end face of the skylight head mounting plate 20, and an optical coupler 28 is fixed to the side face of the lead screw motor 22. The optical coupler 28 and the optical coupler block 27 are used together to prevent overshoot and collision during mechanical operation. It is fixed to the side end face of the skylight head mounting plate and moves forward and backward with the skylight head mounting plate.

[0049] It should be noted that as the skylight mounting plate 20 moves, the optocoupler block 27 also moves accordingly. When the optocoupler block 27 enters the light path of the optocoupler 28, the state of the optocoupler 28 will be changed. After the electronic control system detects the state change of the optocoupler 28, the system immediately issues a command to control the lead screw motor 22 to stop moving, thereby accurately controlling the position of the skylight mounting plate 20 to ensure that it does not exceed the set range of motion.

[0050] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific embodiment of the utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A card strip detection assembly, comprising a limit device, a detection device and a power device, wherein the detection device is fixed to the upper end of the limit device, and the power device provides power for the detection device, characterized in that: A slide groove is provided in the limit device, and the card strip to be detected slides back and forth on the slide groove. A micro switch is connected to the side of the slide groove. A detection position is provided on the slide groove. The micro switch controls the card strip to stay at the detection position. The detection device performs optical detection on the card strip through the detection hole on the limit device.

2. The card strip detection assembly according to claim 1, characterized in that: The limiting device includes a bracket, a supporting column, the sliding groove, a fixing plate, a transmission block and the micro switch. The supporting column is connected to the lower end of the bracket, and the sliding groove is arranged on the bracket.

3. The card strip detection assembly according to claim 2, characterized in that: The bracket is provided with a mounting groove at the side end of the detection position, the transmission block and the fixing plate are located in the mounting groove, the inner peripheral edge of the mounting groove matches the outer peripheral edge shape of the transmission block, and the fixing plate is provided on the transmission block to prevent the transmission block from shifting in position.

4. The card strip detection assembly according to claim 3, characterized in that: The mounting groove has a first opening and a second opening, and the transmission block is composed of a front convex portion, a rear convex portion and two shock-absorbing blocks. The front convex portion is an arc-shaped structure, and the front convex portion extends out of the first opening. The rear convex portion of the transmission block contacts the micro switch when extending outward from the second opening.

5. The card strip detection assembly according to claim 4, characterized in that: The micro switch is connected to the side of the installation groove, and the front end surface of the micro switch has an outer convex strip, and the outer convex strip contacts with the rear convex part to realize transmission.

6. The card strip detection assembly according to claim 5, characterized in that: A limiting plate is arranged on the bracket.

7. The card strip detection assembly according to claim 1, characterized in that: The detection device includes a light head, a light head mounting plate, a linear guide rail, a light head slider and a light head slider mounting plate. The linear guide rail is fixed to the upper end of the limit device. The lower end surface of the light head slider is in contact with the linear guide rail and slides back and forth along the linear guide rail. The light head slider is fixed under the light head mounting plate through the light head slider mounting plate. The light head is welded to the side of the light head mounting plate.

8. The card strip detection assembly according to claim 7, characterized in that: The daylighting head is arranged above the limiting device and corresponds to the position of the detection hole on the limiting device, so that the daylighting head can collect light signals from the card strip located below the daylighting head through the detection hole. The daylighting head includes a daylighting head shielding cover and a daylighting head detection block.

9. The card strip detection assembly according to claim 8, characterized in that: The skylight head mounting plate is connected to the power device through an inner rod. The power device is a screw motor that provides power for the movement of the detection device.

10. The card strip detection assembly according to claim 9, characterized in that: An optical coupler block is fixed to the side end surface of the skylight head mounting plate, and an optical coupler is fixed to the side surface of the lead screw motor. The optical coupler is used in conjunction with the optical coupler block.

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