A test paper pushing device and a urine analyzer

Abstract

The application belongs to the technical field of medical equipment, and provides a test paper pushing device, which comprises a test paper supporting disc, a first sliding block capable of moving linearly along the length direction of the test paper supporting disc between a first working position A1 and a second working position A2, two groups of paper pushing members symmetrically arranged, a plurality of paper pushing members in each group, the plurality of paper pushing members in each group being arranged in sequence and at intervals along the length direction of the test paper supporting disc, the paper pushing members being L-shaped, the paper pushing members comprising a first branch and a second branch connected with each other, the connection between the first branch and the second branch being hinged to the first sliding block, the first branch extending upward, and the second branch extending toward the feeding end of the test paper pushing device, and a first driving assembly for driving the first sliding block to move reciprocally between the first working position A1 and the second working position A2, and a urine analyzer comprising the test paper pushing device is also provided. The test paper pushing device and the urine analyzer are simple in structure and reasonable in design.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a test paper pushing device and a urine analyzer. BACKGROUND

[0002] The fully automatic dry-chemical urine analyzer is widely used in various medical institutions and hospitals due to its high work efficiency and fast sample detection speed. The test paper pushing device for conveying urine detection test paper is an important component of the urine analyzer, which plays the role of test paper strip transportation and sample reaction carrier.

[0003] The invention patent with the authorized announcement number CN110342291B provides a test paper pushing method, device and urine analyzer thereof. The test paper pushing device includes a bottom box and a tray, the tray cover is arranged on the bottom box, the tray includes a sampling site and a detection site, a paper pushing piece is arranged in the bottom box, and the paper pushing piece is connected with a first driving assembly and a second driving assembly. In use, first, the first driving assembly moves the paper pushing piece upward to make the gear teeth on the paper pushing piece contact with the test paper; then, the second driving assembly drives the paper pushing piece to move, so as to horizontally move the test paper along the first direction through the paper pushing piece; after that, the first driving assembly moves the paper pushing piece downward to make the gear teeth separate from the test paper; finally, the second driving assembly drives the paper pushing piece to move and reset along the direction opposite to the first direction. The above steps are repeated to achieve the purpose of pushing the test paper to the preset position.

[0004] However, the test paper pushing device has the following deficiencies: the first driving assembly needs to make the paper pushing piece move up and down reciprocatingly, and the second driving assembly needs to drive the paper pushing piece to move horizontally reciprocatingly along the first direction, so as to achieve the purpose of pushing the test paper, which is complex in structure. SUMMARY

[0005] In view of the defects in the prior art, the purpose of the present application is to provide a test paper pushing device and a urine analyzer, which are simple in structure.

[0006] In order to achieve the above purpose, on the one hand, the present application provides a test paper pushing device, which comprises:

[0007] a paper tray;

[0008] a first sliding block, which is slidingly arranged at the bottom of the paper tray and can move reciprocatingly along the length direction of the paper tray between a first working position A1 and a second working position A2;

[0009] two groups of paper pushers symmetrically arranged on both sides of the paper tray, each group of paper pushers having a plurality of paper pushers, the plurality of paper pushers in each group being sequentially and spacedly arranged along the length direction of the paper tray, each paper pusher being L-shaped and comprising a first arm and a second arm connected to each other, the connection between the first arm and the second arm being hinged to the first slider, the first arm extending upward, and the second arm extending toward the feeding end of the test paper pushing device, the paper pusher being capable of swinging around its hinged center line between a first working position B1 and a second working position B2, wherein when the paper pusher is in the first working position B1, the end of the first arm of the paper pusher away from the second arm extends above the top wall of the paper tray, and when the paper pusher is in the second working position B2, the end of the first arm of the paper pusher away from the second arm retracts below the top wall of the paper tray; and

[0010] a first driving assembly for driving the first slider to make reciprocating linear motion between the first working position A1 and the second working position A2.

[0011] Further, a second driving assembly is further included for driving the paper pusher to swing reciprocally between the first working position B1 and the second working position B2.

[0012] Further, the second driving assembly comprises:

[0013] a permanent magnet fixedly embedded at the end of the second arm of the paper pusher away from the first arm;

[0014] an electromagnet matched with the permanent magnet and fixedly embedded on the first slider; and

[0015] a control assembly for changing the current direction of the electromagnet.

[0016] Further, the control assembly comprises:

[0017] a current direction switching switch; and

[0018] two position sensors sequentially and spacedly arranged along the length direction of the paper tray for detecting the position of the first slider.

[0019] Further, a blocking assembly is further included, which comprises:

[0020] Two groups of blocking arms are symmetrically arranged on two sides of the paper supporting disc, the number of the blocking arms in each group is multiple, and the number of the blocking arms in each group is one less than the number of the paper pushing pieces in each group, the multiple blocking arms in each group are sequentially and spacedly arranged along the feeding end to the discharging end of the test paper pushing device, and the distance between any two adjacent blocking arms is equal to the distance between any two adjacent paper pushing pieces, the blocking arms can reciprocate linearly between a first working position C1 and a second working position C2 along the longitudinal direction, wherein when the blocking arms are in the first working position C1, the blocking arms extend above the top wall of the paper supporting disc, and when the blocking arms are in the second working position C2, the blocking arms extend below the top wall of the paper supporting disc; and

[0021] A third driving assembly is arranged for driving the blocking arms to reciprocate linearly between the first working position C1 and the second working position C2.

[0022] Further, the blocking arms are L-shaped, and each blocking arm comprises a horizontal branch and a vertical branch which are connected to each other, the horizontal branch is above the vertical branch and extends to the discharging end of the test paper pushing device, when the blocking arms are in the first working position C1, the horizontal branch and the vertical branch form a limiting groove together with the top wall on both sides of the paper supporting disc.

[0023] Further, the third driving assembly comprises:

[0024] A second sliding block is fixedly connected with all the blocking arms, and a first protrusion is arranged on the bottom of the second sliding block, wherein a second protrusion is arranged on the top of the first sliding block and matched with the first protrusion, the second protrusion has a horizontal surface and a guide inclined surface which are sequentially connected, the horizontal surface is on the side of the guide inclined surface facing the discharging end of the test paper pushing device, and the lowest part of the guide inclined surface is on the side of the guide inclined surface facing the feeding end of the test paper pushing device; and

[0025] A spring is sleeved on the blocking arm, and in the natural state, the spring has a tendency to move the second sliding block downward.

[0026] Further, the first driving assembly comprises an electric push rod, and a power output shaft of the electric push rod is fixedly connected with the first sliding block.

[0027] On the other hand, the application also provides a urine analyzer comprising the test paper pushing device.

[0028] The application has the following beneficial effects:

[0029] The test paper pushing device and the urine analyzer provided by the application have simple structure, reasonable design and reliable pushing. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0031] Figure 1 This is a perspective view of the test strip pushing device provided in Embodiment 1 of the present invention;

[0032] Figure 2 for Figure 1 A top view of the test strip delivery device and urine analyzer shown;

[0033] Figure 3 for Figure 2 The sectional view shown in the AA direction;

[0034] Figure 4 for Figure 3 The enlarged view at point B is shown below;

[0035] Figure 5 for Figure 1 The circuit diagram of the test strip delivery device shown is shown.

[0036] Figure 6 This is a perspective view of the test strip pushing device provided in Embodiment 2 of the present invention;

[0037] Figure 7 for Figure 6 A top view of the test strip delivery device and urine analyzer shown;

[0038] Figure 8 for Figure 6 The enlarged view at point C shown

[0039] Figure 9 for Figure 7 The sectional view shown in the DD direction;

[0040] Figure 10 for Figure 9 An enlarged view of point E shown.

[0041] Figure label:

[0042] The paper tray 100, the avoiding hole 110, the first sliding block 200, the limiting block 210, the second protruding block 220, the horizontal surface 221, the guide inclined surface 222, the paper pushing piece 300, the first supporting arm 310, the second supporting arm 320, the electric push rod 410, the permanent magnet 510, the electromagnet 520, the current direction switching switch 530, the position sensor 540, the blocking arm 610, the horizontal supporting arm 611, the vertical supporting arm 612, the second sliding block 621, the spring 622, the first protruding block 601, and the controller 700. DETAILED DESCRIPTION

[0043] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0044] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the general meanings understood by the technical personnel in the field to which the present application belongs.

[0045] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] In addition, the terms "first", "second", and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0047] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0049] As shown in Figures 1-10 The present application provides a test paper pushing device, which comprises a test paper supporting disc 100, a first sliding block 200, a test paper pushing piece 300 and a first driving assembly.

[0050] The test paper supporting disc 100 is fixedly connected with a body (not shown in the figure) of a urine analyzer. The first sliding block 200 is slidingly installed at the bottom of the test paper supporting disc 100, and can reciprocate linearly along the length direction of the test paper supporting disc 100 between a first working position A1 and a second working position A2.

[0051] The test paper pushing piece 300 is in the form of L-shaped, and comprises a first branch arm 310 and a second branch arm 320 which are connected with each other. The first branch arm 310 and the second branch arm 320 are hingedly connected with the first sliding block 200 at the connection position therebetween, and the first branch arm 310 extends upwardly, and the second branch arm 320 extends toward the feeding end of the test paper pushing device. The test paper pushing piece 300 can rotate around the hinged center line thereof between a first working position B1 and a second working position B2. When the test paper pushing piece 300 is at the first working position B1, the end of the first branch arm 310 of the test paper pushing piece 300 which is away from the second branch arm 320 extends above the top wall of the test paper supporting disc 100. When the test paper pushing piece 300 is at the second working position B2, the end of the first branch arm 310 of the test paper pushing piece 300 which is away from the second branch arm 320 retracts below the top wall of the test paper supporting disc 100. Preferably, when the test paper pushing piece 300 is at the second working position B2, the moment of the first branch arm 310 of the test paper pushing piece 300 relative to the hinged center line of the test paper pushing piece 300 is smaller than the moment of the second branch arm 320 of the test paper pushing piece 300 relative to the hinged center line of the test paper pushing piece 300, so that the test paper pushing piece 300 can always remain at the first working position B1 without external force, and after the test paper pushing piece 300 moves from the first working position B1 to the second working position B2 under the action of the external force, the test paper pushing piece 300 can also automatically return to the first working position B1 under the action of the second branch arm 320 after the external force disappears.

[0052] The first driving assembly is fixedly installed on the body of the urine analyzer, and is used to drive the first sliding block 200 to make a reciprocating linear motion between the first working position Al and the second working position A2. Specifically, when the first sliding block 200 is at the first working position Al, the first sliding block 200 is closer to the feeding end of the test paper pushing device, and when the first sliding block 200 is at the second working position A2, the first sliding block 200 is farther away from the feeding end of the test paper pushing device. Preferably, the first driving assembly comprises an electric push rod 410, and a power output shaft of the electric push rod 410 is fixedly connected with the first sliding block 200.

[0053] In use, the test paper is placed on a side of the paper pushing piece 300 at the feeding end of the test paper pushing device which faces the discharging end of the test paper pushing device, and under the action of the first driving assembly, the first sliding block 200 is moved from the first working position Al to the first working position Bl, and in this process, since the paper pushing piece 300 is at the first working position Bl, under the action of the first supporting arm 310 of the paper pushing piece 300, the paper pushing piece 300 pushes the test paper a distance towards the discharging end of the test paper pushing device. Then, under the action of the first driving assembly, the first sliding block 200 is driven from the second working position A2 to the first working position Al, and in this process, the first supporting arm 310 of the paper pushing piece 300 at the side of the test paper which faces the discharging end of the test paper pushing device first contacts the test paper, and under the test paper, the paper pushing piece 300 rotates from the first working position Bl to the second working position B2, so that the paper pushing piece 300 can pass through the test paper from below the test paper, and when the first sliding block 200 moves to the first working position Al, the paper pushing piece 300 has completely passed through the test paper, and under the action of the second supporting arm 320 of the paper pushing piece 300, the paper pushing piece 300 rotates from the second working position B2 back to the first working position Bl. Then, under the action of the first driving assembly, the first sliding block 200 is again driven from the first working position Al to the second working position A2, so as to again push the test paper a distance towards the discharging end of the test paper pushing device, and the above steps are repeated, so as to achieve the purpose of pushing the test paper to the detection station and sequentially pushing multiple test papers to the detection station for detection.

[0054] The test paper pushing device has the following problems: in the process that the first driving assembly drives the first slider 200 to move from the second working position A2 to the first working position Al, the gravity of the test paper and the friction between the test paper and the paper supporting disc 100 are used to make the paper pushing piece 300 rotate from the first working position Bl to the second working position B2, but since the weight of the test paper is small, in the process that the test paper pushes the paper pushing piece 300 to rotate, the paper pushing piece 300 is easy to push the test paper to the feeding end of the test paper pushing device under the action of the paper pushing piece 300, so that the reliability of pushing the test paper is not high. Therefore, in an embodiment, a second driving assembly is further included, which is used to drive the paper pushing piece 300 to reciprocate between the first working position Bl and the second working position B2. By setting the second driving assembly, in the process that the paper pushing piece 300 pushes the test paper from the feeding end to the discharging end of the test paper pushing device, i.e. in the process that the first slider 200 moves from the first working position Al to the second working position A2, the second driving assembly drives the paper pushing piece 300 to the first working position Bl, and when the paper pushing piece 300 moves with the first slider 200 from the second working position A2 to the first working position Al, the paper pushing piece 300 is driven to the second working position B2 in advance under the action of the second driving assembly before it contacts the test paper on the side facing the feeding end of the test paper pushing device, so that the paper pushing piece 300 can pass through the test paper smoothly without contacting the test paper, and the gravity of the test paper and the friction between the test paper and the paper supporting disc 100 are not needed to drive the paper pushing piece 300 from the first working position Bl to the second working position B2, so as to achieve the purpose that the paper pushing piece 300 does not push the test paper to the discharging end of the test paper pushing assembly, and further achieve the purpose of improving the reliability of pushing the test paper.

[0055] In an embodiment, the second driving assembly includes a permanent magnet 510, an electromagnet 520 and a control assembly.

[0056] The permanent magnet 510 is fixedly embedded at the end of the second supporting arm 320 of the paper pushing piece 300 away from the first supporting arm 310. The electromagnet 520 cooperates with the permanent magnet 510 and is fixedly embedded on the first slider 200. The control assembly is used to change the current direction of the electromagnet 520.

[0057] Specifically, it is assumed that when the direction of the current is a first direction, the magnetic property of the side of the electromagnet 520 opposite to the permanent magnet 510 is opposite, and when the direction of the current is a second direction (i.e. a direction opposite to the first direction), the magnetic property of the side of the electromagnet 520 opposite to the permanent magnet 510 is the same. In use, in the process of the first slider 200 moving from the first working position A1 to the second working position A2 to push the test paper, the control assembly controls the current passing through the electromagnet 520 to be in the first direction, and under the action of the magnetic attraction between the electromagnet 520 and the permanent magnet 510, the paper pushing piece 300 is in the first working position B1, so that the test paper can be normally pushed; in the process of the first slider 200 moving from the second working position A2 to the first working position A1, the control assembly controls the current passing through the electromagnet 520 to be in the second direction, and under the action of the magnetic repulsion between the electromagnet 520 and the permanent magnet 510, the paper pushing piece 300 is driven from the first working position B1 to the second working position B2, so that the paper pushing piece 300 can smoothly pass from below the test paper. After the first slider 200 moves to the first working position A1, the control assembly controls the direction of the current passing through the electromagnet 520 to be the first direction again, and under the action of the magnetic attraction between the electromagnet 520 and the permanent magnet 510, the paper pushing piece 300 is restored to the first working position B1, so that the test paper can continue to be pushed.

[0058] The second driving assembly of this structure is simple in structure and reasonable in design.

[0059] Of course, the side of the paper pushing piece 300 facing the discharge end of the test paper pushing device is provided with a limiting block 210, and the limiting block 200 is fixedly connected with the first slider 200. The limiting block is used to limit the position of the second working position B2 of the paper pushing piece 300, so as to prevent the paper pushing piece 300 from being unable to return to the first working position B1 due to too large a rotation angle.

[0060] In one embodiment, the control assembly includes a current direction switching switch 530 and a position sensor 540.

[0061] The current direction switching switch 530 is electrically connected with the electromagnet 520. The number of the position sensor 540 is two, and the two position sensors 540 are sequentially and spaced apart along the length direction of the paper tray 100, and are used to detect the position of the first slider 200. Specifically, the two position sensors 540 correspond to the two working positions (i.e. the first working position A1 and the second working position A2) of the first slider 200 respectively, and when the first slider 200 is in the first working position A1 or the second working position A2, one of the two position sensors 540 will be inducted with the first slider 200. The position sensor 540 transmits information to the controller 700, and the controller 700 controls the direction of the current passing through the electromagnet 520 through the current switching switch.

[0062] Specifically, the position sensor 540 is an optical reflection sensor. The optical reflection sensor has two emitting ends and one receiving end. The receiving end is fixedly connected to the first slider 200, and the two emitting ends are sequentially and spacedly arranged. When the receiving end corresponds to one of the two emitting ends, it indicates that the first slider is in the first working position A1. When the receiving end corresponds to the other emitting end, it indicates that the first slider 200 is in the second working position A2.

[0063] The control assembly of the structure is simple in structure and reasonable in design.

[0064] The test paper pushing device has the following deficiencies: in the process that the first driving assembly drives the first slider 200 to move from the second working position A2 to the first working position A1, the gravity of the test paper and the friction between the test paper and the test paper tray 100 are used to enable the paper pushing piece 300 to rotate from the first working position B1 to the second working position B2. However, since the test paper has a small weight, in the process that the test paper pushes the paper pushing piece 300 to rotate, the paper pushing piece 300 is easy to push the test paper to the feeding end of the test paper pushing device under the action of the paper pushing piece 300, thereby reducing the reliability of pushing the test paper. Therefore, in an embodiment, a blocking assembly is further included, and the blocking assembly includes a blocking arm 610 and a third driving assembly.

[0065] The number of the blocking arms 610 is two groups, the number of the blocking walls 610 in each group is multiple, and the number of the blocking arms 610 in each group is one less than the number of the paper pushing pieces 300 in each group. The two groups of blocking arms 610 are symmetrically arranged on the two sides of the test paper tray 100. The multiple blocking walls 610 in each group are sequentially and spacedly arranged from the feeding end to the discharging end of the test paper pushing device, and the distance between any two adjacent blocking walls 610 is equal to the distance between any two adjacent paper pushing pieces 300.

[0066] The blocking arm 610 can make reciprocating linear motion along the longitudinal direction between a first working position C1 and a second working position C2. When the blocking arm 610 is in the first working position C1, the blocking arm 610 extends above the top wall of the test paper tray 100. When the blocking arm 610 is in the second working position C2, the blocking arm 610 extends below the top wall of the test paper tray 100. The third driving assembly is used to drive the blocking arm 610 to make reciprocating linear motion between the first working position C1 and the second working position C2. It should be noted that, in the present embodiment, when the paper pushing piece 300 is in the second working position B2, the moment of the second arm 320 of the paper pushing piece 300 relative to the hinge center line of the paper pushing piece 300 is greater than the moment of the first arm 310 of the paper pushing piece 300 relative to the hinge center line of the paper pushing piece 300, so that after the paper pushing piece 300 passes below the test paper, the paper pushing piece 300 can automatically return to the first working position B1 under the action of the second arm 320 of the paper pushing piece 300.

[0067] In use, during the process that the first driving assembly drives the first slider 200 to move from the first working position A1 to the second working position A2, before the test paper moves to the position of the blocking arm 610, the third driving assembly has driven the blocking arm 610 to move downward from the first working position C1 to the second working position C2 in advance, so that the blocking arm 610 is retracted below the top of the tray, thereby enabling the paper pusher to pass above the blocking arm 610 smoothly, and thereby pushing the test paper to the discharge end of the test paper pushing device. During the process that the first driving assembly drives the first slider 200 to move from the second working position A2 to the first working position A1, before the paper pusher 300 contacts the test paper, the third driving assembly has driven the blocking arm 610 to move upward from the second working position C2 to the first working position C1 in advance, so that the blocking arm 610 can block the test paper, so that the test paper cannot move to the direction of the feeding end of the test paper pushing assembly, thereby enabling the paper pusher 300 to rotate from the first working position B1 to the second working position B2 under the action of the blocking arm 610 and the test paper. After the paper pusher 300 passes through the test paper, the paper pusher 300 is automatically restored to the first working position B1 under the action of the second arm 320 of the paper pusher 300.

[0068] By arranging the blocking assembly, the reliability of the test paper pushing device for pushing the test paper is improved.

[0069] In an embodiment, the blocking arm 610 is L-shaped, and the blocking arm 610 comprises a horizontal arm 611 and a vertical arm 612 connected to each other, the horizontal arm 611 is located above the vertical arm 612 and extends to the discharge end of the test paper pushing device, and when the blocking arm 610 is in the first working position C1, the horizontal arm 611 and the vertical arm 612 form a limiting groove with the top walls on both sides of the tray 100. In use, when the paper pusher 300 moves to the discharge end of the test paper pushing device, the paper pusher 300 first pushes the test paper into the limiting groove, so that the test paper cannot move to the feeding end of the test paper pushing device in the horizontal direction, nor can it move upward in the vertical direction, thereby further improving the reliability of pushing the test paper.

[0070] Specifically, the tray 100 is provided with a position-avoiding hole 110 corresponding to the blocking arm 610 on both sides, and the blocking arm 610 is slidingly inserted into the position-avoiding hole 110.

[0071] In an embodiment, the third driving assembly comprises a second slider 621 and a spring 622.

[0072] The second slider 621 is fixedly connected with all the blocking arms 610, and specifically, the second slider 621 is fixedly connected with the end of the vertical branch 612 of the blocking wall 610 away from the horizontal branch 611, i.e. the bottom end of the vertical branch 612. The bottom of the second slider 621 is provided with a first protrusion 601, and the top of the first slider 200 is provided with a second protrusion 220 matched with the first protrusion 601, and the second protrusion 220 has a horizontal surface 221 and a guide inclined surface 222 connected in sequence, wherein the horizontal surface 221 is located on the side of the guide inclined surface facing the discharge end of the test paper pushing device, and the lowest part of the guide inclined surface 222 is located on the side of the guide inclined surface 222 facing the feeding end of the test paper pushing device.

[0073] The spring 622 is sleeved on the blocking arm 610, and in the natural state, the spring 622 has a tendency to move the second slider 621 downward.

[0074] In use, in the process that the first driving assembly drives the first slider 200 to move from the second working position A2 to the first working position A1, before the paper pushing piece 300 collides with the test paper, under the action of the guide inclined surface 222, the first protrusion 601 moves upward along the guide inclined surface 222 to the horizontal surface 221, so as to drive the blocking arm 610 to move upward to the first working position C1 through the second slider 621 to achieve the purpose of blocking the test paper, and in the process that the first driving assembly drives the first slider 200 to move from the first working position A1 to the second working position A2, before the paper pushing piece 300 pushes the test paper to move to the blocking arm 610, the second slider 621 moves downward along the guide inclined surface 222 under the elastic force of the spring 622, so as to drive the blocking arm 610 to move downward to the second working position C2 through the second slider 621, thereby enabling the test paper to pass above the blocking arm 610 smoothly.

[0075] The third driving assembly of this structure achieves the purpose of driving the blocking arm 610 to move by the movement of the first slider 200 in the process that the first slider 200 moves reciprocatingly and linearly between the first working position A1 and the second working position A2, and has the advantages of simple structure, reasonable design and energy saving.

[0076] On the other hand, the present application also provides a urine analyzer comprising the test paper pushing device.

[0077] In the specification of the present application, a large number of specific details are described. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the present specification.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. A test strip delivery device, characterized in that: include: Paper tray; The first slider is slidably disposed at the bottom of the paper tray, and can reciprocate linearly between the first working position A1 and the second working position A2 along the length direction of the paper tray. Two sets of paper pushers are symmetrically arranged on both sides of the paper tray. Each set contains multiple paper pushers, which are spaced apart sequentially along the length of the paper tray. Each paper pusher is L-shaped and includes a first arm and a second arm connected to each other. The connection between the first and second arms is hinged to the first slider. The first arm extends upwards, and the second arm extends towards the feed end of the test paper pushing device. The paper pusher can be positioned around its hinge center line in a first working position B1 and a second working position B2. When the paper pusher is in the first working position B1, the end of the first arm away from the second arm extends above the top wall of the paper tray. When the paper pusher is in the second working position B2, the end of the first arm away from the second arm retracts below the top wall of the paper tray. A first driving component is used to drive the first slider to perform reciprocating linear motion between the first working position A1 and the second working position A2. It also includes a second drive component, which is used to drive the paper pusher to reciprocate between the first working position B1 and the second working position B2; The second driving component includes: A permanent magnet is fixedly embedded in the second arm of the paper pusher at the end furthest from the first arm; The permanent magnet and the corresponding electromagnet are fixedly embedded in the first slider; and A control component for changing the direction of the current in the electromagnet.

2. The test strip pushing device according to claim 1, characterized in that: The control component includes: Current direction switching switch; and Two position sensors are arranged at intervals along the length of the paper tray to detect the position of the first slider.

3. The test strip pushing device according to claim 1, characterized in that: It also includes a blocking component, the blocking component comprising: Two sets of symmetrically arranged blocking arms are provided on both sides of the paper tray. Each set contains multiple blocking arms, and the number of blocking arms in each set is one less than the number of paper pushers in each set. The blocking arms in each set are spaced apart sequentially along the feed end to the discharge end of the test paper pushing device, and the distance between any two adjacent blocking arms is equal to the distance between any two adjacent paper pushers. The blocking arms can reciprocate linearly between a first working position C1 and a second working position C2. When the blocking arm is in the first working position C1, it extends above the top wall of the paper tray; when the blocking arm is in the second working position C2, it extends below the top wall of the paper tray. A third drive assembly for driving the blocking arm to reciprocate linearly between the first working position C1 and the second working position C2.

4. The test strip delivery device according to claim 3, characterized in that: The blocking arm is L-shaped and includes a horizontal support arm and a vertical support arm connected to each other. The horizontal support arm is located above the vertical support arm and extends towards the discharge end of the test paper pushing device. When the blocking arm is in the first working position C1, the horizontal support arm and the vertical support arm together with the top walls on both sides of the paper tray form a limiting groove.

5. The test strip delivery device according to any one of claims 3 or 4, characterized in that: The third driving component includes: The second slider is fixedly connected to all the blocking arms. A first protrusion is provided at the bottom of the second slider. The top of the first slider is provided with a second protrusion that mates with the first protrusion. The second protrusion has a horizontal plane and a guide slope connected sequentially. The horizontal plane is located on the side of the guide slope facing the discharge end of the test strip pushing device, and the lowest point of the guide slope is located on the side of the guide slope facing the feed end of the test strip pushing device. A spring, which is fitted onto the blocking arm, and in its natural state, the spring has a tendency to cause the second slider to move downward.

6. The test strip delivery device according to any one of claims 1-4, characterized in that: The first drive assembly includes an electric actuator, the power output shaft of which is fixedly connected to the first slider.

7. A urine analyzer, characterized in that: Includes the test strip delivery device according to any one of claims 1-6.

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