Chromatographic card transmission mechanism and detector

Abstract

The utility model discloses a chromatography card transmission mechanism and detector which comprises a motor support, and a first transmission wheel, a second transmission wheel and a third transmission wheel are installed on the motor support at intervals in the length direction of the motor support. The first motor, the second motor and the third motor are used for driving the first transmission wheel, the second transmission wheel and the third transmission wheel, the tops of the first transmission wheel, the second transmission wheel and the third transmission wheel are all higher than the top face of the motor support, and the rotating speed of the second transmission wheel is lower than that of the first transmission wheel and that of the third transmission wheel. According to the utility model, a transmission mechanism is simplified, and the chromatography card is moved at a multi-stage speed, so that the low-speed scanning is ensured, the detection precision is improved, the chromatography card is moved in and out at a high speed, the detection time is shortened, and the detection efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chromatography card detection, in particular to a chromatography card transmission mechanism and a detector. Background Art

[0002] The chromatography card reader of the prior art mainly has two methods when reading the control lines and detection lines of the chromatography card display area: taking pictures to identify the color and scanning the segmented detection light intensity. The photographing method is simple and has a fast reading time, but it is easy to make misjudgments for the detection lines with lighter colors, and the color resolution color range is not enough, resulting in a narrow detection range and inability to quantitatively detect. The scanning detection method divides the chromatography card display window into hundreds or even thousands of segments, and scans and reads the light intensity of each segment, which can obtain richer detail information, improve the signal-to-noise ratio, and obtain a wider detection range at the same time. However, this scanning method requires the cooperation of the transmission mechanism to read the detection card, which is costly, has a long detection time, and is large in size, which is not conducive to promotion and use. For the chromatography card detector with scanning method, the working efficiency of the transmission mechanism is an important factor that directly affects the working efficiency of the detector and the size of the instrument.

[0003] Therefore, how to improve the working efficiency of the transmission mechanism has become the direction of efforts of technicians in this field. Utility Model Content

[0004] The purpose of the utility model is to provide a chromatography card transmission mechanism and a detector, which can completely solve the shortcomings of the above-mentioned prior art.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A chromatography card transmission mechanism comprises a motor bracket, on which a first transmission wheel, a second transmission wheel and a third transmission wheel are installed at intervals along the length direction of the motor bracket, and a first motor, a second motor and a third motor for driving the first transmission wheel, the second transmission wheel and the third transmission wheel are installed correspondingly, the tops of the first to third transmission wheels are all higher than the top surface of the motor bracket, and the rotation speed of the second transmission wheel is lower than the rotation speeds of the first and third transmission wheels.

[0007] Preferably, a spring sheet is detachably connected to the end of the motor bracket, a limit plate is provided on the top of the motor bracket, a connecting hole is opened on the limit plate, a connecting bolt is arranged in the connecting hole, a spring is sleeved on the connecting bolt, and the spring is located between the limit plate and the bottom end of the connecting bolt.

[0008] Preferably, the motor bracket includes a mounting plate, which is a rectangular structure, the top of the mounting plate is folded 90° to form a limiting plate, and the end of the mounting plate is folded 90° to form a connecting plate.

[0009] Preferably, the first to third motors are mounted on one side of the mounting plate, and the first to third transmission wheels are correspondingly mounted on the other side of the mounting plate.

[0010] Preferably, the spring sheet is L-shaped, and one end of the spring sheet is connected to the connecting plate by a bolt.

[0011] Preferably, it further includes a detection chamber and a base plate, the detection chamber is fixed on the base plate, so that a detection channel for the chromatography card to pass through is formed between the detection chamber and the base plate, and a motor bracket is installed at the bottom of the base plate corresponding to the detection channel, the top end of the connecting bolt is connected to the base plate, and the other end of the spring sheet is detachably connected to the base plate, and openings are opened on the base plate corresponding to the first to third transmission wheels, and the top ends of the first to third transmission wheels are higher than the opening.

[0012] A chromatography card detector comprises a detection chamber and a base plate, wherein the detection chamber is fixedly arranged on the base plate, so as to form a detection channel for the chromatography card to pass through between the detection chamber and the base plate, and a chromatography card transmission mechanism described in any one of the above items is installed at the bottom of the base plate corresponding to the detection channel, and openings are opened on the base plate corresponding to the first to third transmission wheels, and the top ends of the first to third transmission wheels are higher than the openings.

[0013] Furthermore, a detection window is provided on the detection chamber, and when the chromatography card is driven by the second transmission wheel, the display window of the chromatography card just enters the detection window, and when the chromatography card is driven by the third transmission wheel, the detector just completes scanning the display window of the chromatography card.

[0014] Furthermore, the bottom surface of the chromatography card is provided with a contact groove along the length direction, and the cross section of the contact groove is trapezoidal or triangular.

[0015] Compared with the prior art, the utility model has the beneficial effects of simplifying the transmission mechanism and adopting multi-level speed to move the chromatography card, thereby ensuring low-speed scanning to improve detection accuracy and high-speed moving in and out of the chromatography card, reducing detection time and greatly improving detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the motor bracket in the first embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the chromatography card detector in the first embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the chromatography card in the utility model;

[0019] Figure 4 This is the first state of the chromatography card transmission process in the first embodiment of the present utility model;

[0020] Figure 5This is the second state of the chromatography card transmission process in the first embodiment of the utility model;

[0021] Figure 6 It is the third state of the chromatography card transmission process in the first embodiment of the utility model;

[0022] Figure 7 It is the fourth state of the chromatography card transmission process in the first embodiment of the utility model;

[0023] Figure 8 It is a structural schematic diagram of the second embodiment of the utility model;

[0024] Fig. 9 It is a structural schematic diagram of the motor bracket in the second embodiment of the utility model;

[0025] Fig.10 It is a structural schematic diagram of the spring sheet in the second embodiment of the utility model;

[0026] Fig.11 It is a structural schematic diagram of the chromatography card detector in the second embodiment of the utility model;

[0027] Fig.12 This is the first state of the chromatography card transmission process in the second embodiment of the present utility model;

[0028] Fig.13 This is the second state of the chromatography card transmission process in the second embodiment of the present utility model;

[0029] Fig.14 This is the third state of the chromatography card transmission process in the second embodiment of the present utility model;

[0030] Fig.15 This is the fourth state of the chromatography card transmission process in the second embodiment of the present utility model. DETAILED DESCRIPTION

[0031] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] Embodiment 1

[0033] like Figures 1 to 7As shown, a chromatography card transmission mechanism comprises a motor bracket 1, on which a first transmission wheel 2, a second transmission wheel 3 and a third transmission wheel 4 are sequentially installed at intervals along the length direction of the motor bracket, and a first motor 5, a second motor 6 and a third motor 7 for driving the first transmission wheel 2, the second transmission wheel 3 and the third transmission wheel 4 are correspondingly installed, the tops of the first to third transmission wheels 2, 3, 4 are all higher than the top surface of the motor bracket 1, and the rotation speed of the second transmission wheel 3 is lower than the rotation speed of the first and third transmission wheels 2, 4.

[0034] The first to third motors 5, 6, 7 are installed on one side of the motor bracket 1, and the first to third transmission wheels 2, 3, 4 are correspondingly installed on the other side opposite to the motor bracket 1.

[0035] A chromatography card detector comprises a detection chamber 11 and a bottom plate 12, wherein the detection chamber 11 is fixedly mounted on the bottom plate 12, so that a detection channel 13 for the chromatography card to pass through is formed between the detection chamber 11 and the bottom plate 12, and the above-mentioned chromatography card transmission mechanism is installed at the bottom of the bottom plate 12 corresponding to the detection channel 13, and an opening 14 is opened on the bottom plate 12 corresponding to the first to third transmission wheels 2, 3, 4, and the top ends of the first to third transmission wheels 2, 3, 4 are higher than the opening 14. The motor bracket 1 is connected to the bottom plate 12 by connecting bolts 9.

[0036] In this embodiment, a detection window 15 is provided on the detection chamber 11, and the detection window 15 is correspondingly arranged between the first transmission wheel 2 and the second transmission wheel 3. When the chromatography card is driven by the second transmission wheel 3, the display window of the chromatography card just enters the detection window 15. When the chromatography card is driven by the third transmission wheel 4, the detector just completes scanning the display window of the chromatography card.

[0037] In this embodiment, the bottom surface of the chromatography card 16 is provided with a contact groove 17 along the length direction, and the cross section of the contact groove 17 is a trapezoid or a triangle, and the embodiment is preferably a trapezoid. The contact groove 17 is provided for the chromatography card 16 to contact the first to third transmission wheels 2, 3, 4, and because the two sides of the contact groove 17 are inclined surfaces, it has an automatic centering effect. When the chromatography card 16 is slightly misaligned, the position of the chromatography card 16 is automatically adjusted, so that the chromatography card 16 always keeps moving on the center line of the detection channel 13, ensuring that the display window on the chromatography card 16 can completely enter the detection window 15 and be completely scanned, thereby reducing the detection error.

[0038] A chromatography card transmission method includes a chromatography card detector, which has a detection chamber 11 and a bottom plate 12. The detection chamber 11 is fixed on the bottom plate 12, so that a detection channel 13 for a chromatography card 16 to pass through is formed between the detection chamber 11 and the bottom plate 12. The cross section of the detection channel 13 is rectangular. The above-mentioned chromatography card transmission mechanism is installed at the bottom of the bottom plate 12 corresponding to the detection channel 13. An opening 14 is opened on the bottom plate 12 corresponding to the first to third transmission wheels 2, 3, 4, and the top ends of the first to third transmission wheels 2, 3, 4 are higher than the opening 14. One end of the detection channel 13 is a card insertion end, and the other end is a card output end. The specific transmission process of the chromatography card 16 is as follows: the chromatography card 16 is inserted from the card inlet end until the contact groove 17 at the bottom of the chromatography card 16 contacts the first transmission wheel 2, and the first transmission wheel 2 drives the chromatography card 16 to move at high speed toward the card outlet end. When the chromatography card 16 contacts the second transmission wheel 3, at this time, the tail end of the chromatography card 16 is separated from the first transmission wheel 2, and the display window of the chromatography card 16 just enters the initial scanning position of the detection window 15. The chromatography card 16 is driven by the second transmission wheel 3 to slowly pass through the detection window 15 until the detector just finishes scanning the display window of the chromatography card 16. The chromatography card 16 just contacts the third transmission wheel 4, and the chromatography card 16 is driven by the third transmission wheel 4 to move quickly to the card outlet end, thereby completing the entire detection process.

[0039] The transmission mode of the chromatography card of the present invention is different from the traditional transmission mode. The traditional mode is: the chromatography card enters the detection channel of the detector from the front, and after the detection is completed, the chromatography card exits the detector from the front along the original route. This motion system requires a two-way motion of moving the chromatography card in the forward direction and exiting the chromatography card in the reverse direction. The motion mechanism is complex, time-consuming, and has high manufacturing costs. The transmission mode of the chromatography card of the present invention is: the chromatography card enters from one end of the detection channel of the detector, and exits the detector from the other end after the detection is completed. This transmission mode simplifies the transmission mechanism, reduces the complexity of the transmission mechanism, and greatly reduces the manufacturing cost of the transmission mechanism. On the other hand, the traditional transmission mode is to drive the chromatography card at a uniform speed, while the present invention adopts a multi-stage speed to move the chromatography card, which ensures that low-speed scanning improves the detection accuracy and high-speed movement in and out of the chromatography card, reduces the detection time, and greatly improves the detection efficiency.

[0040] Embodiment 2

[0041] See also Figure 3 and Figures 8 to 15As shown, a chromatography card transmission mechanism comprises a motor bracket 1, on which a first transmission wheel 2, a second transmission wheel 3 and a third transmission wheel 4 are sequentially installed at intervals along the length direction of the motor bracket, and a first motor 5, a second motor 6 and a third motor 7 for driving the first transmission wheel 2, the second transmission wheel 3 and the third transmission wheel 4 are correspondingly installed, the tops of the first to third transmission wheels 2, 3, 4 are all higher than the top surface of the motor bracket 1, and the rotation speed of the second transmission wheel 3 is lower than the rotation speed of the first and third transmission wheels 2, 4.

[0042] In this embodiment, the motor bracket 1 includes a mounting plate 101, which is a rectangular structure. The top of the mounting plate 101 is folded 90° to form a limit plate 102, and the end of the mounting plate 101 is folded 90° to form a connecting plate 103. The first to third motors 5, 6, 7 are installed on one side of the mounting plate 101, and the first to third transmission wheels 2, 3, 4 are installed on the other side of the mounting plate 101.

[0043] In this embodiment, a spring sheet 8 is connected to the end of the motor bracket 1 by bolts, and the spring sheet 8 is L-shaped. One end of the spring sheet 8 is connected to the connecting plate 103 by bolts. A connecting hole 104 is opened on the limit plate 102, and a connecting bolt 9 is arranged in the connecting hole 104. A spring 10 is sleeved on the connecting bolt 9, and the spring 10 is located between the limit plate 102 and the bottom end of the connecting bolt 9.

[0044] In this embodiment, it also includes a detection chamber 11 and a bottom plate 12. The detection chamber 11 is fixed on the bottom plate 12, so that a detection channel 13 for the chromatography card to pass through is formed between the detection chamber 11 and the bottom plate 12. The motor bracket 1 is installed at the bottom of the bottom plate 12 corresponding to the detection channel 13. The top end of the connecting bolt 9 is connected to the bottom plate 12, and the other end of the spring sheet 8 is detachably connected to the bottom plate 12. An opening 14 is opened on the bottom plate 12 corresponding to the first to third transmission wheels 2, 3, 4, and the top ends of the first to third transmission wheels 2, 3, 4 are higher than the opening 14.

[0045] A chromatography card detector includes a detection chamber 11 and a base plate 12. The detection chamber 11 is fixed on the base plate 12, so that a detection channel 13 for the chromatography card to pass through is formed between the detection chamber 11 and the base plate 12. The cross section of the detection channel 13 is rectangular. The above-mentioned chromatography card transmission mechanism is installed at the bottom of the base plate 12 corresponding to the detection channel 13. An opening 14 is opened on the base plate 12 corresponding to the first to third transmission wheels 2, 3, and 4, and the top of the first to third transmission wheels 2, 3, and 4 is higher than the opening 14. The spacing between the first transmission wheel 2 and the second transmission wheel 2, and the spacing between the second transmission wheel 3 and the third transmission wheel 4 are both less than the length of the chromatography card. This structural design makes the distance of the chromatography card from moving into the detection channel 13 to moving out of the detection channel 13 shorter in this embodiment compared with the first embodiment, which is conducive to shortening the detection time, improving the detection efficiency and miniaturization of the detector.

[0046] In this embodiment, a detection window 15 is opened on the detection chamber 11. When the chromatography card is driven by the second transmission wheel 3, the display window of the chromatography card just enters the detection window 15. When the chromatography card is driven by the third transmission wheel 4, the detector just completes scanning the display window of the chromatography card.

[0047] In this embodiment, the bottom surface of the chromatography card 16 is provided with a contact groove 17 along the length direction, and the cross section of the contact groove 17 is a trapezoid or a triangle, and the embodiment is preferably a trapezoid. The contact groove 17 is provided for the chromatography card 16 to contact the first to third transmission wheels 2, 3, 4, and because the two sides of the contact groove 17 are inclined surfaces, it has an automatic centering effect. When the chromatography card 16 is slightly misaligned, the position of the chromatography card 16 is automatically adjusted, so that the chromatography card 16 always keeps moving on the center line of the detection channel 13, ensuring that the display window on the chromatography card 16 can completely enter the detection window 15 and be completely scanned, thereby reducing the detection error.

[0048] In order to ensure that the first to third transmission wheels 2, 3, 4 effectively drive the chromatography card 16, the outer rings of the first to third transmission wheels 2, 3, 4 are covered with rubber rings or silicone rings, and the first to third transmission wheels 2, 3, 4 are in contact with the contact groove 17 at the bottom of the chromatography card 16 through the rubber rings or silicone rings.

[0049] A chromatography card transmission method includes a chromatography card detector, the chromatography card 16 detector has a detection chamber 11 and a bottom plate 12, the detection chamber 11 is fixed on the bottom plate 12, so that a detection channel 13 for the chromatography card 16 to pass through is formed between the detection chamber 11 and the bottom plate 12, the cross section of the detection channel 13 is rectangular, and the above-mentioned chromatography card transmission mechanism is installed at the bottom of the bottom plate 12 corresponding to the detection channel 13, and an opening 14 is opened on the bottom plate 12 corresponding to the first to third transmission wheels 2, 3, 4, and the top of the first to third transmission wheels 2, 3, 4 is higher than the opening 14, one end of the detection channel 13 is a card insertion end, and the other end is a card output end. The specific transmission process of the chromatography card 16 is as follows: the chromatography card 16 is inserted from the card inlet end until the chromatography card 16 contacts the first transmission wheel 2, and the first transmission wheel 2 drives the chromatography card 16 to move at a high speed toward the card outlet end. At this time, under the extrusion of the chromatography card 16, the first transmission wheel 2 is pressed downward, the motor bracket 1 moves downward, and the spring 10 is in a compressed state. When the front end of the chromatography card 16 contacts the second transmission wheel 3, the chromatography card 16 presses the second transmission wheel 3 downward, causing the motor bracket 1 to continue to rotate downward, and the spring 10 is further compressed, so that the top of the first transmission wheel 2 is separated from the chromatography card 16. The chromatography card 16 is driven by the second transmission wheel 3. At this time, the display window of the chromatography card 16 just enters the initial position of the detection window 15. The chromatography card 16 is driven by the second transmission wheel 3 to slowly pass through the detection window 15 until the detector just finishes scanning the display window of the chromatography card 16. The front end of the chromatography card 16 just contacts the third transmission wheel 4 and squeezes the third transmission wheel 4 downward, so that the top of the second transmission wheel 3 is separated from the chromatography card 16. The chromatography card 16 is driven by the third transmission wheel 4 to move quickly to the card outlet end, thereby completing the entire detection process.

[0050] Compared with the prior art, the utility model simplifies the transmission mechanism and adopts multi-level speed to move the chromatography card, thereby ensuring low-speed scanning to improve detection accuracy and high-speed movement in and out of the chromatography card, reducing detection time and greatly improving detection efficiency.

[0051] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various utility model aspects, in the above description of the exemplary embodiments of the utility model, the various features of the utility model are sometimes grouped together into a single embodiment, figure, or description thereof. However, the disclosed method should not be interpreted as reflecting the following intention: the claimed utility model requires more features than the features explicitly stated in each claim. More specifically, as reflected in the following claims, the utility model aspects are less than all the features of the single embodiment disclosed above. Therefore, the claims following the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the utility model.

[0052] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and in addition they may be divided into a plurality of submodules or subunits or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this manner may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature providing the same, equivalent or similar purpose.

[0053] In addition, those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims below, any one of the claimed embodiments may be used in any combination.

[0054] It should be noted that the above embodiments illustrate the utility model rather than limit the utility model, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The word "comprising" does not exclude the existence of elements or steps not listed in the claims. The word "one" or "an" before an element does not exclude the existence of multiple such elements. The utility model can be implemented by means of hardware including several different elements and by means of appropriately programmed computers. In a unit claim that lists several devices, several of these devices can be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chromatography card transmission mechanism, characterized in that: The invention comprises a motor bracket, on which a first transmission wheel, a second transmission wheel and a third transmission wheel are installed at intervals along the length direction of the motor bracket, and a first motor, a second motor and a third motor for driving the first transmission wheel, the second transmission wheel and the third transmission wheel are installed correspondingly, the tops of the first to third transmission wheels are all higher than the top surface of the motor bracket, and the rotation speed of the second transmission wheel is lower than the rotation speed of the first and third transmission wheels. The invention also comprises a detection chamber and a bottom plate, the detection chamber is fixedly arranged on the bottom plate, so as to form a detection channel for the chromatography card to pass through between the detection chamber and the bottom plate, the motor bracket is installed at the bottom of the bottom plate corresponding to the detection channel, the top end of the connecting bolt is connected to the bottom plate, the other end of the spring sheet is detachably connected to the bottom plate, and openings are opened on the bottom plate corresponding to the first to third transmission wheels, and the top ends of the first to third transmission wheels are higher than the opening.

2. The chromatography card transmission mechanism according to claim 1, characterized in that: A spring sheet is detachably connected at the end of the motor bracket, a limit plate is provided on the top of the motor bracket, a connecting hole is opened on the limit plate, a connecting bolt is arranged in the connecting hole, a spring is sleeved on the connecting bolt, and the spring is located between the limit plate and the bottom end of the connecting bolt.

3. The chromatography card transmission mechanism according to claim 2, characterized in that: The motor bracket comprises a mounting plate, which is a rectangular structure. The top of the mounting plate is folded 90° to form a limit plate, and the end of the mounting plate is folded 90° to form a connecting plate.

4. The chromatography card transmission mechanism according to claim 3, characterized in that: The first to third motors are mounted on one side of the mounting plate, and the first to third transmission wheels are correspondingly mounted on the other side of the mounting plate.

5. The chromatography card transmission mechanism according to claim 4, characterized in that: The spring sheet is L-shaped, and one end of the spring sheet is connected to the connecting plate through a bolt.

6. A chromatography card detector, comprising a detection chamber and a bottom plate, wherein the detection chamber is fixedly mounted on the bottom plate, so that a detection channel for the chromatography card to pass through is formed between the detection chamber and the bottom plate, characterized in that: The chromatography card transmission mechanism according to any one of claims 1 to 5 is installed at the bottom of the base plate corresponding to the detection channel, and openings are opened on the base plate corresponding to the first to third transmission wheels, and the top ends of the first to third transmission wheels are higher than the openings.

7. The chromatography card detector according to claim 6, characterized in that: The detection chamber is provided with a detection window. When the chromatography card is driven by the second transmission wheel, the display window of the chromatography card just enters the detection window. When the chromatography card is driven by the third transmission wheel, the detector just finishes scanning the display window of the chromatography card.

8. The chromatography card detector according to claim 7, characterized in that: The bottom surface of the chromatography card is provided with a contact groove along the length direction, and the cross section of the contact groove is a trapezoid or a triangle.

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