CN214503324U

CN214503324U - Dry chemistry detection device

Info

Publication number: CN214503324U
Application number: CN202023021813.9U
Authority: CN
Inventors: 黄栢城; 李成龙; 丁兴春; 华德运
Original assignee: Shenzhen Reetoo Biotechnology Co Ltd
Current assignee: Shenzhen Reetoo Biotechnology Co Ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-10-26
Anticipated expiration: 2030-12-15

Abstract

The utility model provides a dry chemistry detection device, the on-line screen storage device comprises a base, light-emitting component, optics detection circuit board and photoelectric device, the centre bore and a plurality of side opening have been seted up of base, the centre bore runs through the base along the central axis of base, a plurality of side openings encircle the central axis interval and set up, and run through the base, optics detection circuit board is relative with the base, light-emitting component includes a plurality of LED lamps, a plurality of LED lamps are installed in a plurality of side openings correspondingly and the pin all with optics detection circuit board fixed connection, photoelectric device sets up in one side that is close to the base of optics detection circuit board, and relative with the centre bore. The utility model discloses a dry chemistry detection device, optics detection circuit board and LED lamp form the constraining force each other to be connected with the base is firm, reduce the fixed knot who is used for installing optics detection circuit board specially and construct, and dry chemistry detection device overall structure is simple, compact, effectively reduces the structure complexity and reduces whole volume.

Description

Dry chemistry detection device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a dry chemistry detection device.

Background

Urine tests, as one of the routine items in clinical tests in modern medicine, play an important role in the diagnosis of diseases. The optical detection device is a common detection device in urine dry chemical analysis, and needs to restrain and fix LED lamps with various wavelengths so as to obtain a stable light source, reduce the unstable condition of the light source irradiation effect caused by the looseness of the LED lamps and ensure the accuracy of a detection result.

However, the conventional optical detection device has a complicated structure and a large volume, and is not favorable for miniaturization of the whole device.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a dry chemistry detection device effectively solves the technical problem that the structure is complicated, bulky.

The utility model provides a pair of dry chemistry detection device, include:

the base is provided with a central hole and a plurality of side holes, the central hole penetrates through the base along the central axis of the base, and the side holes are arranged at intervals around the central hole and penetrate through the base;

an optical detection circuit board opposite to the base; and

the light-emitting assembly comprises a plurality of LED lamps, the LED lamps are correspondingly arranged in the side holes, and pins of the LED lamps are fixedly connected with the optical detection circuit board; and

and the photoelectric device is arranged on one side of the optical detection circuit board close to the base and is opposite to the central hole.

In one embodiment, the side holes are all obliquely arranged towards the side far away from the central hole in the direction close to the optical detection circuit board.

In one embodiment, the axes of the side holes intersect at a point, and the intersection point is located on the axis of the central hole.

In one embodiment, the included angle between the axis of the side hole and the axis of the central hole ranges from 35 ° to 40 °.

In one embodiment, the base includes an end surface and a side circumferential surface surrounding the end surface, and the side holes penetrate through the end surface and the side circumferential surface.

In one embodiment, the central hole comprises a first hole and a second hole which are communicated, the first hole penetrates through the end face of the base, and the diameter of the second hole is smaller than or equal to that of the first hole.

In one embodiment, a step surface is formed on the side wall of the side hole, the step surface is arranged around the axis of the side hole, a protruding edge is formed on the end face of one end, where the pins of the LED lamp are located, and the protruding edge is abutted to the step surface.

In one embodiment, the side hole includes a mounting section to which the LED lamp is mounted and a light-passing section communicating with the mounting section, the light-passing section having a diameter smaller than that of the mounting section.

In one embodiment, the end face of the base is provided with a convex ring, the convex ring is arranged around the periphery of the central hole, and at least part of the structure of the photoelectric device is accommodated in a space enclosed by the convex ring.

In one embodiment, the optical detection circuit board abuts against one side of the convex ring away from the base.

The utility model provides a dry chemistry detection device, the on-line screen storage device comprises a base, light-emitting component, optical detection circuit board and photoelectric device, the centre bore and a plurality of side opening of having seted up of base, the centre bore runs through the base along the central axis of base, a plurality of side openings encircle the central axis interval and set up, and run through the base, light-emitting component includes a plurality of LED lamps, a plurality of LED lamps are installed correspondingly in a plurality of side openings and the pin all with optical detection circuit board fixed connection, photoelectric device sets up in one side that is close to the base of optical detection circuit board, and relative with the centre bore, thereby optical detection circuit board and LED lamp form about power each other, with the firm connection of base, reduce the fixed knot structure who is used for installing optical detection circuit board specially, make overall structure simple, compact, effectively reduce the structure complexity and reduce whole volume.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, drawings of other embodiments can be obtained according to the drawings without creative efforts.

FIG. 1 is an exploded view of a dry chemistry detection device in one embodiment;

FIG. 2 is a schematic view of an assembled structure of the dry chemistry detection device shown in FIG. 1;

FIG. 3 is a schematic side view of the dry chemistry test device shown in FIG. 2;

FIG. 4 is a schematic cross-sectional view of an embodiment of a dry chemistry detection apparatus;

FIG. 5 is a schematic side view of another embodiment of a dry chemistry detection apparatus;

fig. 6 is a schematic cross-sectional structure view of the dry chemistry test device shown in fig. 5.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that 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, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

With reference to fig. 1 to 4, the present invention provides a dry chemical detection device for detecting urine, which comprises a base 1, a light emitting module, an optical detection circuit board 3 and a photoelectric device 4.

The base 1 is provided with a plurality of side holes 11 and a central hole 12, the central hole 12 penetrates through the base 1 along the central axis of the base 1, and the side holes 11 are arranged at intervals around the central hole 12 and penetrate through the base 1.

The light emitting assembly includes a plurality of LED lamps 2, in some embodiments, the light emitting assembly includes 2 LED lamps 2 or more than 2 LED lamps 2, the light emitting assembly may include 3 LED lamps 2, or may include 6 LED lamps 2, and the number of the LED lamps 2 is not limited herein.

In this embodiment, the number of the LED lamps 2 corresponds to the number of the side holes 11, and specifically, the LED lamps 2 are correspondingly installed in the side holes 11. In some embodiments, the LED lamp 2 is a close fit to the side hole 11, e.g., the side wall of the LED lamp 2 abuts the side wall 11 of the side hole. Or the LED lamp 2 is fixed in the side hole 11 by glue. The fixing manner of the LED lamp 2 to the side hole 11 is not limited herein.

In some embodiments, the pins 22 of the LED lamps 2 are bent toward the optical detection circuit board 3, so as to electrically connect the LED lamps 2 to the optical detection circuit board 3 located above the base 1, so as to fixedly connect the optical detection circuit board 3 and the pins 22 of the LED lamps 2, and thus form a constraint with the LED lamps 2, so as to be firmly fixed to the base 1, reduce a fixing structure specially used for installing the optical detection circuit board 3, effectively reduce the structural complexity of the dry chemical detection device, and reduce the overall volume.

The photoelectric device 4 is arranged on one side of the optical detection circuit board 3 close to the base 1 and opposite to the central hole 12. In this embodiment, when the light emitted by the LED lamp 2 irradiates the object to be detected, the light is reflected by the object to be detected and enters the photoelectric device 4 from the central hole 12, so that the photoelectric device 4 performs photoelectric conversion, and the reflected light signal of the object to be detected is converted into an electrical signal.

The substance to be detected may be a test paper, a test card, or the like, which is wetted with urine. The test strip or strip holder has a plurality of different reagent patches, each of which is coated with a different chemical substance that chemically reacts with a component of the urine to produce a different color change. When the concentration of a certain component changes, the color of the corresponding reagent block after reaction also changes, that is, the change of the concentration of a certain component and the color change of the reagent block after reaction are in one-to-one correspondence, so that the concentration of each component in urine can be obtained by detecting the color change of the reagent blocks by the photoelectric device 4, and urine examination can be realized.

The photoelectric device 4 may be a CCD photoelectric converter or a photoresistor. When the photoelectric device 4 is a photoresistor, the resistance value is higher under the condition of no illumination, and when the photoelectric device is illuminated, the resistance value is reduced and the conductivity is obviously enhanced, so that the intensity of a reflected light signal of an object to be detected is represented. The type of the photoelectric device 4 may be other types such as a photoelectric tube or a photomultiplier tube, and is not limited herein.

As shown in fig. 4 and 6, the side holes 11 are inclined toward one side away from the central hole 12 in the direction of approaching the optical detection circuit board 3, and the inclined arrangement enables light emitted by the LED lamps 2 in the side holes 11 to have an effect of converging toward the position corresponding to the central hole 12, so that after an object to be detected is irradiated, more reflected light can enter the photoelectric device 4 through the central hole 12, and the detection result is more accurate.

In some embodiments, the axes of the side holes 11 intersect at a point, and the intersection point is located on the axis of the central hole 12, so that when the LEDs disposed in the side holes 11 irradiate the test paper or test card waiting for detection object wetted with urine, a local bright or local dark phenomenon is not generated, and the uniformity of the reflected light received by the photoelectric device 4 is improved, thereby facilitating the improvement of the detection accuracy.

In some embodiments, the included angle between the axis of the side hole 11 and the axis of the central hole 12 ranges from 32 ° to 42 °, and with this structure, the plurality of LED lamps 2 installed in the plurality of side holes 11 have good light condensing properties, and the obtained light source is uniform, so that the photoelectric device 4 stably generates a photoelectric effect after receiving the reflected light reflected by the light emitting assembly after irradiating the object to be detected, and obtains an accurate detection result.

In some embodiments, the angle between the axis of the side hole 11 and the axis of the central hole 12 may also be 32 °, 35 °, 39 ° or 40 °, which is not particularly limited herein.

Referring again to fig. 1, the base 1 includes an end surface 1a and a side circumferential surface 1b surrounding the end surface 1a, and a plurality of side holes 11 penetrate through the end surface 1a and the side circumferential surface 1b, so that the base 1 can be made smaller to reduce the volume of the dry chemistry detection apparatus as a whole while satisfying the installation requirement of the LED lamp 2.

In some embodiments, the optical detection circuit board 3 is parallel to the end surface 1a of the base 1, and the orthographic projection contour of the base 1 on the optical detection circuit board 3 and the edge contour of the optical detection circuit board 3 are concentric circles and are spaced from each other by less than or equal to 3 mm. With this arrangement, the optical detection circuit board 3 is not excessively exposed from the edge of the base 1, so that the volume of the dry chemistry detection device as a whole is reduced, and the miniaturization of the whole device is achieved.

It should be noted that the size of the optical detection circuit board 3 only needs to be adapted to the circuit function thereof, and the optical detection circuit board is fixedly connected to the pins 22 of the LED lamp 2 to connect with the base 1. For example, the size of the optical detection circuit board 3 is equal to the size of the end surface 1a of the base 1, that is, the orthographic projection profile of the base 1 on the optical detection circuit board 3 coincides with the profile of the optical detection circuit board 3.

In some embodiments, as shown in fig. 4, the central hole 12 includes a first hole 12a and a second hole 12b communicating with each other, the first hole 12b penetrates to the end surface of the base 1, and the diameter of the second hole 12b is smaller than that of the first hole 12 a. With this structural arrangement, the first hole 12a of a larger aperture can effectively ensure illumination of reflected light entering the optoelectronic device 4, so that the optoelectronic device 4 receives a sufficient amount of reflected light. The second hole 12b serves as an entrance for the light reflected by the object to be detected to enter the optoelectronic device 4, and the second hole 12b having a smaller aperture can prevent ambient light from entering the optoelectronic device 4 from the second hole 12b and interfering with the accuracy of the detection result.

The second hole 12b may be directly penetrating through the bottom surface 1c of the base 1, or may not be penetrating through the bottom surface 1c of the base 1, as long as the light enters the first hole 12a, for example, a hole having a different aperture is further provided at one end of the second hole 12b close to the bottom surface 1c of the base 1, so that the center hole 12 penetrates through the base 1 as a whole.

In other embodiments, the diameters of the first hole 12a and the second hole 12b are equal, and with this configuration, the central hole 12 can be formed to allow the reflected light from the object to be detected to enter the optoelectronic device 4, and meanwhile, by reasonably controlling the aperture of the central hole 12, the light in the environment can be prevented from entering the optoelectronic device 4 to interfere with the accuracy of the detection result.

In some embodiments, as shown in fig. 1 and 4, a step surface 111 is formed on a side wall of the side hole 11, the step surface 111 is disposed around an axis of the side hole 11, a protruding rib 21 is formed on an end surface of one end of the LED lamp 2 where the pin 22 is located, and the protruding rib 21 abuts against the step surface 111, so that the LED lamp 2 is limited, and the mounting stability of the LED lamp 2 on the base 1 is improved.

In some embodiments, the depth of the side hole 11 is greater than the length of the LED lamp 2 along the optical axis direction thereof, so that when the LED lamp 2 is installed in the side hole 11, the top end of the LED lamp 2 does not protrude from the bottom surface 1c of the base 1, so that the base 1 can protect the LED lamp 2 well.

The side hole 11 includes a mounting section 11a and a light passing section 11b communicating with the mounting section 11 a. The LED lamp is installed in installation section 11a, and the diameter that leads to light section 11b is less than the diameter of installation section 11a to utilize the less light section 11b that leads to of diameter to assemble the light that LED lamp 2 installed in installation section 11a sent, thereby improve the illumination intensity who treats the measuring thing, make the intensity of the reverberation of waiting to measure the thing higher and easily detected by photoelectric device 4, thereby make the testing result accurate.

The lateral wall of the side hole 11 corresponding to the mounting section 11a is attached to the lateral light emitting surface of the LED lamp 2, so that the LED lamp 2 is stably mounted in the mounting section 11a and is not easy to loosen.

As shown in fig. 4, a butting surface 11c is formed at the boundary between the light-passing section 11b and the mounting section 11 a. The light emitting surface of the LED lamp 2 is abutted against the abutting surface 11c, so that the abutting surface 11c can limit the LED lamp 2.

It should be noted that, in the embodiment that the protruding rib 21 is formed on the LED lamp 2, and the protruding rib 21 abuts against the step surface 111 in the side hole 11, by reasonably setting the length of the LED lamp 2 along the optical axis direction or the length of the mounting section 11a, the abutting surface 11c and the LED lamp 2 can achieve a double-limiting effect, that is, even if the protruding rib 21 is damaged and cannot form a good abutting limit with the step surface 111, the setting of the abutting surface 11c can also position the depth of the LED lamp 2 mounted in the side hole 11, so that a consistent light effect is formed at the position of each LED lamp 2 corresponding to the central hole 12, and the overall light-emitting uniformity of the light-emitting assembly is improved.

As shown in fig. 1 and 4, the end surface 1a of the base 1 is provided with a convex ring 13, the convex ring 13 is disposed around the circumference of the central hole 12, and the photoelectric device 4 is at least partially accommodated in a space enclosed by the convex ring 13, so that the photoelectric device 4 can receive the reflected light from the object to be detected and prevent the external light from entering the photoelectric device 4 to generate interference, thereby maintaining a good detection effect. In addition, the compactness of the overall structure can be improved by housing the photoelectric device 4 by the convex ring 13, and the overall volume is smaller. For example, as shown in fig. 3 and 4, the entire structure of the photoelectric device 4 is housed in the space surrounded by the convex ring 13. As shown in fig. 5 and 6, the optical detection circuit board 3 and the convex ring 13 are disposed at an interval, that is, they are not in contact with each other, and only a part of the structure of the photoelectric device 4 is accommodated in the space enclosed by the convex ring 13.

In some embodiments, the optical detection circuit board 3 abuts against one side of the convex ring 13 away from the base 1, so that the convex ring 13 is utilized to position the optical detection circuit board 3, thereby facilitating the soldering and fixing of the pins 22 of the LED lamp 2 on the optical detection circuit board 3, and reducing the complexity of the connection process between the optical detection circuit board and the LED lamp.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A dry chemistry detection device, comprising:

an optical detection circuit board opposite to the base; and

2. The dry chemistry detection device of claim 1, wherein a plurality of said side holes are each obliquely disposed toward a side away from said central hole in a direction approaching said optical detection circuit board.

3. The dry chemistry detection device of claim 2, wherein the axes of the plurality of side holes intersect at a point, and the point of intersection is located on the axis of the central hole.

4. The dry chemistry detection device of claim 3, wherein an angle between an axis of the side hole and an axis of the central hole ranges from 35 ° to 40 °.

5. The dry chemistry detection device of claim 1, wherein the base comprises an end face and a side peripheral surface surrounding the end face, wherein the side holes extend through the end face and the side peripheral surface.

6. The dry chemistry detection device of claim 1, wherein the central bore comprises a first bore and a second bore in communication, the first bore extending through to an end face of the base, the second bore having a diameter less than or equal to a diameter of the first bore.

7. The dry chemistry detection device of claim 1, wherein the side wall of the side hole is formed with a step surface, the step surface is disposed around the axis of the side hole, the end face of the end of the LED lamp where the lead is located is formed with a ledge, and the ledge abuts against the step surface.

8. The dry chemistry detection device of claim 1, wherein the side hole comprises a mounting section to which the LED light is mounted and a light passing section in communication with the mounting section, the light passing section having a diameter smaller than a diameter of the mounting section.

9. The dry chemistry detection device of any one of claims 1 to 8, wherein the end face of the base is provided with a raised ring disposed around the periphery of the central aperture, and wherein at least a portion of the optoelectronic device is received within a space defined by the raised ring.

10. The dry chemistry detection device of claim 9, wherein the optical detection circuit board abuts a side of the collar distal from the base.