An anti-interference device for the groove type photoelectric switch of a biochemical analyzer

Abstract

The present invention discloses an anti-interference device for a groove-type optoelectronic switch of a biochemical analyzer. A through groove is opened in the main body of the cleaning mechanism. The groove-type optoelectronic switch includes a transmitting end and a receiving end, which are located in the through groove and fixed to both sides of the main body of the cleaning mechanism respectively. The anti-interference component includes a cleaning needle mounting plate, a light-resistant partition plate and an anti-interference light-shielding plate. The cleaning needle mounting plate is connected to the anti-interference light-shielding plate in a zigzag shape, and the cleaning needle mounting plate is located below the anti-interference light-shielding plate. The light-resistant partition plate is located below the anti-interference light-shielding plate and on one side of the cleaning needle mounting plate. The cleaning needle is slidably connected to the main body of the cleaning mechanism and fixedly connected to the cleaning needle mounting plate. The return spring is sleeved on the cleaning needle and is located between the cleaning needle mounting plate and the main body of the cleaning mechanism, improving the anti-interference effect and ensuring normal operation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an anti-interference device for a groove-shaped optoelectronic switch of a biochemical analyzer. Background Art

[0002] As a device for measuring the properties of human body fluids, the cleanliness inside and outside the reaction cup of a biochemical analyzer has a great impact on the measurement results. When the reaction cup cleaning mechanism cleans the reaction cup, it needs to move up and down. To avoid various random factors and mechanical failures that may cause the cleaning needle to hit and damage the reaction cup or affect other components of the instrument, a position monitoring device is designed at the cleaning needle. Due to structural limitations, the position monitoring device must be placed outside the instrument. The receiving end of the optoelectronic switch may mistake natural light or other light sources for those from the transmitting end. At this time, the cleaning needle is not hindered in its movement, and the transmitting end and the receiving end of the optoelectronic switch are still separated by a baffle. To prevent external light sources such as natural light from interfering with the optoelectronic switch and causing the instrument to misjudge the operation of the cleaning mechanism and pause, a protective cover is usually installed outside the optoelectronic switch to shield the interfering light, but the anti-interference effect is not ideal, which affects the operation of the instrument. Summary of the Invention

[0003] The present invention provides an anti-interference device for a groove-shaped optoelectronic switch of a biochemical analyzer, which can improve the anti-interference effect and ensure the normal operation of the instrument.

[0004] To achieve the above object, the present invention provides an anti-interference device for a groove-shaped optoelectronic switch of a biochemical analyzer, including an anti-interference component, a return spring, a main body of the cleaning mechanism, a groove-shaped optoelectronic switch, and a cleaning needle. A through groove is formed on the main body of the cleaning mechanism, and the through groove faces the inner wall of the cleaning cup. The groove-shaped optoelectronic switch is located in the through groove. The groove-shaped optoelectronic switch includes a transmitting end and a receiving end. The transmitting end is fixedly connected to the main body of the cleaning mechanism and is located in the through groove. The receiving end is fixedly connected to the main body of the cleaning mechanism and is located in the through groove, and is disposed opposite to the transmitting end. The anti-interference component includes a cleaning needle mounting plate, a light resistance partition plate, and an anti-interference light shielding plate. The cleaning needle mounting plate, the light resistance partition plate, and the anti-interference light shielding plate are integrally formed. The cleaning needle mounting plate is connected to the anti-interference light shielding plate in a zigzag shape, and the cleaning needle mounting plate is located below the anti-interference light shielding plate. The light resistance partition plate is located below the anti-interference light shielding plate and on one side of the cleaning needle mounting plate. The cleaning needle passes through the main body of the cleaning mechanism and the cleaning needle mounting plate, and is slidably connected to the main body of the cleaning mechanism and fixedly connected to the cleaning needle mounting plate. The return spring is sleeved on the cleaning needle and is located between the cleaning needle mounting plate and the main body of the cleaning mechanism.

[0005] Among them, the transmitting end has a first threaded hole, the receiving end has a second threaded hole, the second threaded hole is located on the side away from the transmitting end, and the first threaded hole is located on the side away from the receiving end.

[0006] Among them, the cleaning needle mounting plate has a mounting hole, and the mounting hole is located below the return spring.

[0007] Among them, the cleaning needle mounting plate also has a fixing threaded hole, the fixing threaded hole is connected to the mounting hole, and is located on the side away from the photoresist partition.

[0008] Among them, the cleaning needle has a cylindrical sleeve, the cylindrical sleeve is slidably connected to the main body of the cleaning mechanism, is fixedly connected to the cleaning needle, and is located on the main body of the cleaning mechanism.

[0009] Among them, the anti-interference device for the groove-shaped photoelectric switch of the biochemical analyzer further includes a cleaning component, the cleaning component is fixedly connected to the cleaning needle, and is located at the lower end of the cleaning needle.

[0010] Among them, the anti-interference device for the groove-shaped photoelectric switch of the biochemical analyzer further includes a fixing screw, the fixing screw is threadedly connected to the cleaning needle mounting plate, and is located in the fixing threaded hole.

[0011] Among them, the anti-interference device for the groove-shaped photoelectric switch of the biochemical analyzer further includes a first screw and a second screw.

[0012] The first screw is threadedly connected to the transmitting end and is located in the first threaded hole;

[0013] The second screw is threadedly connected to the receiving end and is located in the second threaded hole.

[0014] Implementing the embodiments of the present invention has the following beneficial effects:

[0015] The anti-interference device for the groove-type photoelectric switch of the biochemical analyzer provided by the embodiment of the present invention opens a through groove on the inner wall of the cleaning cup facing the cleaning mechanism main body. The groove-type photoelectric switch is located in the through groove. The anti-interference component includes a cleaning needle mounting plate, a light resistance partition plate, and an anti-interference light-shielding plate. The cleaning needle mounting plate, the light resistance partition plate, and the anti-interference light-shielding plate are integrally formed. The cleaning needle mounting plate is connected to the anti-interference light-shielding plate in a zigzag shape, and the cleaning needle mounting plate is located below the anti-interference light-shielding plate. The light resistance partition plate is located on the lower side of the anti-interference light-shielding plate and on one side of the cleaning needle mounting plate. The cleaning needle passes through the cleaning mechanism main body and the cleaning needle mounting plate, and is slidably connected to the cleaning mechanism main body and fixedly connected to the cleaning needle mounting plate. The return spring is sleeved on the cleaning needle and is located between the cleaning needle mounting plate and the cleaning mechanism main body. There is no need to additionally install a protection device, which reduces the production cost, improves the anti-interference effect, and ensures the normal operation of the instrument. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of the anti-interference component provided by the embodiment of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the anti-interference component provided by the embodiment of the present invention in another direction.

[0019] Figure 3 It is a schematic structural diagram of the anti-interference device for the groove-type photoelectric switch of the biochemical analyzer provided by the embodiment of the present invention when no obstacle is encountered.

[0020] Figure 4 It is a schematic structural diagram of the anti-interference device for the groove-type photoelectric switch of the biochemical analyzer provided by the embodiment of the present invention in another direction when no obstacle is encountered.

[0021] Figure 5 It is Figure 3 Cross-sectional view A-A of

[0022] Figure 6 It is Figure 5 Cross-sectional view B-B of

[0023] Figure 7 It is a schematic structural diagram of the anti-interference device for the groove-type photoelectric switch of the biochemical analyzer provided by the embodiment of the present invention when an obstacle is encountered.

[0024] Figure 8 It is a schematic structural diagram in another direction of the anti-interference device for the groove photoelectric switch of the biochemical analyzer when encountering obstacles provided by the embodiments of the present invention.

[0025] Figure 9 It is Figure 7 the sectional view A-A of

[0026] Figure 10 It is Figure 9 the sectional view B-B of

[0027] 1 - Anti-interference component, 2 - Return spring, 3 - Main body of the cleaning mechanism, 4 - Groove photoelectric switch, 5 - Cleaning needle, 6 - Cylindrical sleeve, 7 - Cleaning component, 8 - Through groove, 15 - First screw, 16 - Second screw, 17 - Fixing screw, 11 - Cleaning needle mounting plate, 12 - Light resistance partition board, 13 - Anti-interference light shielding board, 41 - Transmitting end, 42 - Receiving end. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, in the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0030] Please refer to Figures 1 to 6, the present invention provides an anti-interference device for a grooved photoelectric switch of a biochemical analyzer. The anti-interference device for the grooved photoelectric switch of the biochemical analyzer includes: an anti-interference component 1, a return spring 2, a main body 3 of a cleaning mechanism, a grooved photoelectric switch 4, and a cleaning needle 5. A through groove 8 is formed on the main body 3 of the cleaning mechanism. The through groove 8 faces the inner wall of the cleaning cup. The grooved photoelectric switch 4 is located in the through groove 8. The grooved photoelectric switch 4 includes a transmitting end 41 and a receiving end 42. The transmitting end 41 is fixedly connected to the main body 3 of the cleaning mechanism and is located in the through groove 8. The receiving end 42 is fixedly connected to the main body 3 of the cleaning mechanism and is located in the through groove 8 and is disposed opposite to the transmitting end 41. The anti-interference component 1 includes a cleaning needle mounting plate 11, a light resistance partition plate 12, and an anti-interference light shielding plate 13. The cleaning needle mounting plate 11, the light resistance partition plate 12, and the anti-interference light shielding plate 13 are integrally formed. The cleaning needle mounting plate 11 is connected to the anti-interference light shielding plate 13 in a zigzag shape, and the cleaning needle mounting plate 11 is located below the anti-interference light shielding plate 13. The light resistance partition plate 12 is located on the lower side of the anti-interference light shielding plate 13 and on one side of the cleaning needle mounting plate 11. The cleaning needle 5 passes through the main body 3 of the cleaning mechanism and the cleaning needle mounting plate 11, is slidably connected to the main body 3 of the cleaning mechanism, and is fixedly connected to the cleaning needle mounting plate 11. The return spring 2 is sleeved on the cleaning needle 5 and is located between the cleaning needle mounting plate 11 and the main body 3 of the cleaning mechanism.

[0031] In this embodiment, taking the case where the cleaning needle 5 does not encounter an obstacle as an example, please refer to Figures 2 to 6 , when the main body 3 of the cleaning mechanism moves downward and the cleaning needle 5 does not encounter an obstacle, at this time the return spring 2 is in an extended state, and the anti-interference component 1 is pressed downward under the action of the spring force. At this time, the transmitting end 41 and the receiving end 42 of the grooved photoelectric switch 4 are blocked by the light resistance partition plate 12. At the same time, the anti-interference light shielding plate 13 is closely attached above the grooved photoelectric switch 4, and external light sources such as natural light are blocked and cannot cause interference, and the device will work normally.

[0032] Taking the case where the cleaning needle 5 encounters an obstacle as an example, please refer to Figures 7 to 10 , when the main body 3 of the cleaning mechanism moves downward and the cleaning needle 5 encounters an obstacle, the anti-interference component 1 is lifted upward. At this time, the return spring 2 is in a compressed state, and the block between the transmitting end 41 and the receiving end 42 of the grooved photoelectric switch 4 disappears. The receiving end 42 will receive the light source emitted by the transmitting end 41, so that the instrument receives an electrical signal, determines that a failure has occurred in the cleaning mechanism, and then stops all actions.

[0033] Further, the transmitting end 41 has a first threaded hole, and the receiving end 42 has a second threaded hole. The second threaded hole is located on the side away from the transmitting end 41, and the first threaded hole is located on the side away from the receiving end 42.

[0034] In this embodiment, the transmitting end 41 has a first threaded hole, which is located on the side away from the receiving end 42 and adjacent to the transmitting end 41. The receiving end 42 has a second threaded hole, which is located on the side away from the transmitting end 41 and adjacent to the receiving end 42, facilitating the disassembly, assembly, and fixation of the groove-type photoelectric switch 4 and the cleaning mechanism main body 3.

[0035] Further, the cleaning needle mounting plate 11 has a mounting hole, and the mounting hole is located below the return spring 2.

[0036] In this embodiment, the cleaning needle mounting plate 11 has two mounting holes for mounting the cleaning needle 5, and the mounting holes are directly below the return spring 2 sleeved on the cleaning needle 5.

[0037] Further, the cleaning needle mounting plate 11 also has a fixing threaded hole, which is connected to the mounting hole and is located on the side away from the photoresist partition 12.

[0038] In this embodiment, the cleaning needle mounting plate 11 has two fixing threaded holes, which are located on the other side away from the connection between the cleaning needle mounting plate 11 and the photoresist partition, and the connecting threaded hole is connected to the mounting hole, facilitating the fixation of the mounting screw and the cleaning needle 5.

[0039] Further, the cleaning needle 5 has a cylindrical sleeve 6, and the cylindrical sleeve 6 is slidably connected to the cleaning mechanism main body 3 and fixedly connected to the cleaning needle 5, and is located on the cleaning mechanism main body 3.

[0040] In this embodiment, the cylindrical sleeve 6 is sleeved on the cleaning needle 5, and the cleaning needle 5 passes through the cleaning mechanism main body 3 and the cleaning needle mounting plate 11. The length of the cylindrical sleeve 6 is greater than the height of the cleaning mechanism main body 3. The cylindrical sleeve 6 is fixedly connected to the cleaning needle 5 and slidably connected to the cleaning mechanism main body 3, which can reduce the wear of the cleaning mechanism main body 3 on the cleaning needle 5 during the operation of the instrument and increase the service life of the cleaning needle 5.

[0041] Further, the anti-interference device for the groove-type photoelectric switch of the biochemical analyzer further includes a cleaning component 7, and the cleaning component 7 is fixedly connected to the cleaning needle 5 and is located at the lower end of the cleaning needle 5.

[0042] In this embodiment, the cleaning assembly 7 located at the lower end of the cleaning needle 5 is fixed to the cleaning needle 5 and can achieve the purpose of cleaning by following the up and down movement of the cleaning needle 5.

[0043] Further, the anti-interference device for the groove-shaped photoelectric switch of the biochemical analyzer further includes a fixing screw 9. The fixing screw 17 is threadedly connected to the cleaning needle mounting plate 11 and is located in the fixing threaded hole.

[0044] In this embodiment, the fixing screw 17 is fixedly connected to the cylindrical sleeve 6 through the fixing threaded hole in the cleaning needle mounting plate 11, and the cylindrical sleeve 6 is fixedly connected to the cleaning needle 5. Therefore, the fixing screw 17 rigidly connects the cleaning needle 5 and the anti-interference assembly 1 together, enabling the anti-interference assembly 1 to follow the movement of the cleaning needle 5 and ensuring the normal operation of the instrument.

[0045] Further, the anti-interference device for the groove-shaped photoelectric switch of the biochemical analyzer further includes a first screw 15 and a second screw 16. The first screw 15 is threadedly connected to the transmitting end 41 and is located in the first threaded hole;

[0046] The second screw 16 is threadedly connected to the receiving end 42 and is located in the second threaded hole.

[0047] In this embodiment, the first screw 15 is threadedly connected to the transmitting end 41 and is fixed to the cleaning mechanism main body 3, and the second screw 16 is threadedly connected to the receiving end 42 and is fixed to the cleaning mechanism main body 3, preventing the abnormal operation of the instrument caused by the displacement of the position of the groove-shaped photoelectric switch 4 during the working process. Moreover, through the connection of the first screw 15 and the second screw 16, the disassembly and assembly of the groove-shaped photoelectric switch 4 can be facilitated.

[0048] The above-disclosed is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand the implementation of all or part of the above processes, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. A biochemical analyzer groove-shaped photoelectric switch anti-interference device, Characterized in that, The biochemical analyzer groove-shaped photoelectric switch anti-interference device includes an anti-interference component, a return spring, a cleaning mechanism main body, a groove-shaped photoelectric switch and a cleaning needle. A through groove is opened on the cleaning mechanism main body, and the through groove faces the inner wall of the cleaning cup. The groove-shaped photoelectric switch is located in the through groove. The groove-shaped photoelectric switch includes a transmitting end and a receiving end. The transmitting end is fixedly connected to the cleaning mechanism main body and is located in the through groove. The receiving end is fixedly connected to the cleaning mechanism main body and is located in the through groove and is arranged opposite to the transmitting end. The anti-interference component includes a cleaning needle mounting plate, a light resistance partition plate and an anti-interference light shielding plate. The cleaning needle mounting plate, the light resistance partition plate and the anti-interference light shielding plate are integrally formed. The cleaning needle mounting plate is connected to the anti-interference light shielding plate in a zigzag shape, and the cleaning needle mounting plate is located below the anti-interference light shielding plate. The light resistance partition plate is located on the lower side of the anti-interference light shielding plate and on one side of the cleaning needle mounting plate. The cleaning needle passes through the cleaning mechanism main body and the cleaning needle mounting plate and is slidably connected to the cleaning mechanism main body and fixedly connected to the cleaning needle mounting plate. The return spring is sleeved on the cleaning needle and is located between the cleaning needle mounting plate and the cleaning mechanism main body; The cleaning needle mounting plate has a mounting hole, and the mounting hole is located below the return spring; The cleaning needle mounting plate also has a fixed threaded hole, and the fixed threaded hole is connected to the mounting hole and is located on the side away from the light resistance partition plate; The cleaning needle has a cylindrical sleeve, and the cylindrical sleeve is sleeved on the cleaning needle. The cleaning needle passes through the cleaning mechanism main body and the cleaning needle mounting plate. The length of the cylindrical sleeve is greater than the height of the cleaning mechanism main body. The cylindrical sleeve is fixedly connected to the cleaning needle and is slidably connected to the cleaning mechanism main body, reducing the wear of the cleaning mechanism main body on the cleaning needle when the instrument is working; The biochemical analyzer groove-shaped photoelectric switch anti-interference device further includes a cleaning component, and the cleaning component is fixedly connected to the cleaning needle and is located at the lower end of the cleaning needle and moves up and down following the cleaning needle; The biochemical analyzer groove-shaped photoelectric switch anti-interference device further includes a fixing screw. The fixing screw is fixedly connected to the cylindrical sleeve through the fixed threaded hole on the cleaning needle mounting plate, and the cylindrical sleeve is fixedly connected to the cleaning needle. The fixing screw rigidly connects the cleaning needle and the anti-interference component, enabling the anti-interference component to move following the cleaning needle.

2. A biochemical analyzer groove-shaped photoelectric switch anti-interference device according to claim 1, Characterized in that, The transmitting end has a first threaded hole, and the receiving end has a second threaded hole. The second threaded hole is located on the side away from the transmitting end, and the first threaded hole is located on the side away from the receiving end.

3. A biochemical analyzer groove-shaped photoelectric switch anti-interference device according to claim 2, Characterized in that, The anti-interference device for the groove-type photoelectric switch of the biochemical analyzer further includes a first screw and a second screw. The first screw is threadedly connected to the transmitting end and is located in the first threaded hole; the second screw is threadedly connected to the receiving end and is located in the second threaded hole.

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