CN216525854U - Device is changed to ELIASA light filter - Google Patents

Abstract

The utility model discloses a device for replacing an optical filter of an enzyme-labeling instrument, which comprises a plurality of optical filters and an optical filter wheel disc for installing the optical filters, wherein the optical filter wheel disc is provided with a plurality of optical filter fixing through holes for installing the optical filters, the optical filters are detachably arranged in the optical filter fixing through holes, the optical filter fixing through holes are annularly arrayed around the rotating axis of the optical filter wheel disc, the outer ring of the optical filter wheel disc, close to the position of the optical filter fixing through holes, is provided with a threaded hole communicated with the optical filter fixing through holes, and the threaded hole is internally threaded with a threaded fixing piece for abutting and matching with the optical filters. When the optical filter is replaced, only the threaded fixing piece needs to be loosened, and the optical filter is taken out.

Description

Device is changed to ELIASA light filter

[ technical field ] A

The utility model relates to the technical field of enzyme labeling, in particular to the technical field of a replacing device of an optical filter of an enzyme labeling instrument.

[ background of the utility model ]

Enzyme-linked immunosorbent assay (ELISA) instrument. Is a special instrument for enzyme-linked immunosorbent assay, also called as a micropore plate detector. The method can be simply divided into semi-automatic and full-automatic types, but the working principles are basically consistent, and the core of the method is a colorimeter, namely, a colorimetric method is used for analysis. The final volume of the test solution is generally required to be below 250 mu L, and the test cannot be completed by using a general photoelectric colorimeter, so that the special requirements on the photoelectric colorimeter in the microplate reader are met.

The existing microplate reader can provide different detection modes for the experimental detection taking a microporous plate as a system, and can provide detection modes such as light absorption detection, fluorescence detection, chemiluminescence detection and the like under the common condition, or simultaneously has two or more detection modes. The different classes of detection modes have corresponding detection optical paths. No matter which detection mode is selected, optical filters are required to be respectively arranged on an excitation light path and an emission light path according to the detection requirement of a detection sample so as to select light with specified wavelength and meet the detection requirement of a sample. Therefore, according to different detection requirements, different filters must be replaced in time to select light with corresponding wavelengths. In the optical detection instrument such as a microplate reader in the prior art, the replacement of the optical filter and the replacement of the optical fiber path are separately performed. The optical filter is replaced by linearly driving the optical filter arranged in the long cylinder to align the optical filter with the optical path, and the switching mode occupies space and cannot meet the requirement of switchable quantity. The operation of the instrument is very inconvenient, the cost is increased, the internal space is occupied, and the use function and the performance of the instrument are further limited.

For example, the chinese utility model patent with the patent number CN209745790U provides an elisa plate rotating disc device capable of rapidly replacing optical filters, which comprises an optical filter wheel (1), wherein a plurality of through holes for accommodating an optical filter seat (3) are arranged in an annular array along the circumferential direction of the optical filter wheel (1); a V-shaped fixing device (9) is arranged between every two adjacent through holes, and fixing salient points (10) are arranged on two sides of each V-shaped fixing device (9); the optical filter base (3) is provided with two salient points (11) which are matched with the fixed salient points (10); the filter base (3) is internally provided with a retainer ring (6), a rubber retainer ring (5) and a filter (4) from top to bottom in sequence. The utility model increases the number of the through holes on the filter wheel, and enlarges the loading number of the filters; the filter is pre-sealed in the filter seat, so that the filter can be quickly replaced from the outside under the condition of not opening the shell. However, the optical filter seat (3) with the structure is fixed only through the matching of the two salient points (11) and the fixed salient points (10), the fixing stability is general, the looseness is easy, and the optical filter seat (3) is easy to fall off.

[ Utility model ] content

The utility model aims to solve the problems in the prior art and provides a device for replacing an optical filter of an microplate reader, wherein the optical filter is more stably fixed and more convenient to replace.

In order to achieve the purpose, the utility model provides a device for replacing an optical filter of an microplate reader, which comprises a plurality of optical filters and an optical filter wheel disc for installing the optical filters, wherein the optical filter wheel disc is provided with a plurality of optical filter fixing through holes for installing the optical filters, the optical filters are detachably arranged in the optical filter fixing through holes, the optical filter fixing through holes are arranged around the rotating axis of the optical filter wheel disc in an annular array manner, the outer ring of the optical filter wheel disc, close to the optical filter fixing through holes, is provided with threaded holes communicated with the optical filter fixing through holes, and the threaded holes are internally connected with threaded fixing pieces for abutting fit with the optical filters.

Preferably, the optical filter comprises an optical filter body and an outer protective shell arranged on the outer ring of the optical filter body, and an annular concave section which can be in interference fit with the threaded fixing piece is arranged on the outer protective shell.

Preferably, still including being used for fixing the supporting component of light filtering wheel dish, the supporting component is including locating first backup pad, the second backup pad of light filtering wheel dish both sides, be equipped with between first backup pad, the second backup pad and be used for placing the clearance of light filtering wheel dish, just the clearance passes through the intermediate junction spare to support fixedly, first backup pad or be equipped with in the arbitrary backup pad of second backup pad with light filtering wheel dish is connected and is used for the drive the rotatory driving motor of light filtering wheel dish.

Preferably, the first support plate or/and the second support plate is/are provided with a filter wheel disc replacing opening which can be matched with the filter fixing through hole and can be used for the filter to pass through.

Preferably, the filter wheel disc is provided with a disc body fixing lug boss which can be matched with the driving motor, and a fixing hole which can be matched with a rotating shaft of the driving motor is arranged in the disc body fixing lug boss.

Preferably, a step hole which can be matched with the optical filter is arranged in the optical filter fixing through hole, and the optical filter is detachably arranged in the step hole.

The replacing device for the optical filter of the microplate reader has the beneficial effects that: according to the utility model, the filter wheel disc is provided with the plurality of filter fixing through holes for fixing the optical filter, the optical filter is detachably fixed in the filter fixing through holes through the thread fixing piece, the optical filter is convenient to mount and dismount, when the optical filter is replaced, the thread fixing piece is only required to be loosened, the optical filter is taken out, the filter wheel disc can be provided with the plurality of filter fixing through holes at the last time, the optical filters of different types are arranged in the filter fixing through holes, and the optical filter can be switched by rotating the filter wheel disc, so that the switching is more convenient and more efficient.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic view of the three-dimensional structure of a filter wheel disc and a filter of a device for replacing a filter of an microplate reader.

FIG. 2 is a schematic diagram of a rear perspective structure of a filter wheel disc and a filter of the device for replacing the filter of the microplate reader.

FIG. 3 is a schematic diagram of the three-dimensional structure of the optical filter of the device for replacing the optical filter of the microplate reader.

FIG. 4 is a schematic perspective view of a microplate reader filter exchange device according to the present invention.

FIG. 5 is a schematic front view of a microplate reader filter exchange device according to the present invention.

FIG. 6 is a schematic view of a top view structure of a device for replacing an optical filter of an microplate reader according to the utility model

In the figure: the optical filter comprises a 1-optical filter, a 2-optical filter wheel disc, a 3-thread fixing piece, a 4-first supporting plate, a 5-second supporting plate, a 6-middle connecting piece, a 7-driving motor, an 8-light source, an 11-optical filter body, a 12-outer protective shell, a 121-annular inner concave section, a 21-optical filter fixing through hole, a 22-thread hole, a 211-step hole, a 41-optical filter wheel disc replacing opening and a 71-disc body fixing lug boss.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the utility model and not to limit the scope of the utility model. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the description of the present invention, it should be noted that when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the products of the present invention are conventionally placed when used, and are merely used for convenience of describing and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

referring to fig. 1, 2 and 3, the utility model relates to a device for replacing an optical filter of an microplate reader, which comprises a plurality of optical filters 1 and an optical filter wheel disc 2 for installing the optical filters 1. The filter wheel disc 2 is provided with a plurality of filter fixing through holes 21 for installing the filters 1. The optical filter 1 is detachably arranged in the optical filter fixing through hole 21. The filter fixing through holes 21 are arranged in an annular array around the rotation axis of the filter wheel 2. And a threaded hole 22 communicated with the optical filter fixing through hole 21 is formed in the outer ring of the optical filter disc 2 close to the optical filter fixing through hole 21. The threaded hole 22 is internally threaded with a threaded fixing piece 3 which is in interference fit with the optical filter 1. This embodiment is through setting up a plurality of light filter fixing hole 21 that are used for fixed light filter 1 on the wheel disc 2 of will filtering, can dismantle through screw thread mounting 3 with light filter 1 and fix in light filter fixing hole 21, be convenient for install and dismantle light filter 1, only need loosen screw thread mounting 3 when changing light filter 1, take out light filter 1 can, filter wheel disc 2 last time can set up a plurality of light filter fixing hole 21, and set up the light filter 1 of different models in light filter fixing hole 21, rotatory filter wheel disc 2 can switch over light filter 1, it is more convenient to switch over, high efficiency.

Referring to fig. 3, the optical filter 1 includes an optical filter body 11 and an outer protective casing 12 disposed at an outer ring of the optical filter body 11. The outer protective shell 12 is provided with an annular concave section 121 which can be in interference fit with the threaded fastener 3. Set up the interior concave section 121 of annular on outer protective housing 12 and be convenient for cooperate with threaded fastener 3, when threaded fastener 3 contradicts the cooperation with the interior concave section 121 of annular, the convex part in both sides can play limiting displacement with the cooperation of threaded fastener 3, improves fixed steadiness.

Example two:

referring to fig. 4, 5 and 6, a support assembly for securing the filter wheel 2 is also included. The supporting component comprises a first supporting plate 4 and a second supporting plate 5 which are arranged on two sides of the filter wheel disc 2. A gap for placing the filter wheel disc 2 is arranged between the first supporting plate 4 and the second supporting plate 5, and the gap is supported and fixed through an intermediate connecting piece 6. And the first supporting plate 4 is provided with a driving motor 7 which is connected with the filtering wheel disc 2 and is used for driving the filtering wheel disc 2 to rotate. With the setting of filtering wheel dish 2 between first backup pad 4, second backup pad 5, be convenient for fixed filtering wheel dish 2, also can protect filtering wheel dish 2 and filter 1 on the filtering wheel dish 2, avoid damaging.

Referring to fig. 4, 5 and 6, the first supporting plate 4 and the second supporting plate 5 are provided with filter disc replacing openings 41 which can be matched with the filter fixing through holes 21 and through which the filter 1 can pass. When needing light filter 1, can change mouth 41 department to the rim plate with the rotation of light filter 1 that needs to be changed, loosen the screw thread mounting 3 of this light filter 1, break away from light filter 1 from light filter fixed through hole 21 to change mouth 41 through the rim plate and take out, it is more convenient to operate, the change of being convenient for, raises the efficiency.

Referring to fig. 4, 5 and 6, the filter wheel 2 is provided with a wheel fixing protrusion 71 that can cooperate with the driving motor 7. The disk fixing boss 71 is provided with a fixing hole which can be engaged with the rotation shaft of the driving motor 7. Be convenient for with driving motor 7 fixed coordination, it is more firm to connect, and intensity is higher.

Referring to fig. 1, a stepped hole 211 capable of being matched with the optical filter 1 is formed in the optical filter fixing through hole 21. The optical filter 1 is detachably disposed in the stepped hole 211. The optical filter 1 can be positioned and fixed by matching the optical filter 1 with the stepped hole 211, so that the fixing precision is improved.

The working process of the utility model is as follows:

in the working process of the replacing device for the optical filter of the microplate reader, when the optical filter 1 is needed, the optical filter 1 to be replaced can be rotated to the wheel disc replacing opening 41, the threaded fixing piece 3 for fixing the optical filter 1 is loosened, the optical filter 1 is separated from the optical filter fixing through hole 21 and taken out through the wheel disc replacing opening 41, a new optical filter 1 is installed in the optical filter fixing through hole 21, and the threaded fixing piece 3 is fixed.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims (6)

1. The utility model provides a device is changed to ELIASA light filter, includes a plurality of light filters (1) and is used for installing filter wheel dish (2) of light filter (1), its characterized in that: be equipped with a plurality of being used for the installation on optical filter wheel dish (2) optical filter fixing hole (21) of optical filter (1), optical filter (1) can be dismantled and locate in optical filter fixing hole (21), optical filter fixing hole (21) wind the rotatory axle center annular array of optical filter wheel dish (2) sets up, optical filter wheel dish (2) outer lane is close to optical filter fixing hole (21) department be equipped with screw hole (22) of optical filter fixing hole (21) intercommunication, screw hole (22) female connection have be used for with optical filter (1) conflict complex screw thread mounting (3).

2. The microplate reader filter exchange device according to claim 1, wherein: the optical filter (1) comprises an optical filter body (11) and an outer protective shell (12) arranged on the outer ring of the optical filter body (11), wherein an annular concave section (121) which can be in interference fit with the threaded fixing piece (3) is arranged on the outer protective shell (12).

3. The microplate reader filter exchange device according to claim 1, wherein: still including being used for fixing the supporting component of light filtering wheel dish (2), the supporting component is including locating the first backup pad (4), second backup pad (5) of light filtering wheel dish (2) both sides, be equipped with between first backup pad (4), the second backup pad (5) and be used for placing the clearance of light filtering wheel dish (2), just the clearance is supported fixedly through intermediate junction spare (6), first backup pad (4) or be equipped with in the arbitrary backup pad of second backup pad (5) with light filtering wheel dish (2) are connected and are used for the drive the rotatory driving motor (7) of light filtering wheel dish (2).

4. The microplate reader filter exchange device according to claim 3, wherein: and a filter wheel disc replacing opening (41) which can be matched with the filter fixing through hole (21) and can be used for the filter (1) to pass through is formed in the first supporting plate (4) or/and the second supporting plate (5).

5. The microplate reader filter exchange device according to claim 3, wherein: the filter disc (2) is provided with a disc body fixing lug boss (71) matched with the driving motor (7), and a fixing hole matched with a rotating shaft of the driving motor (7) is formed in the disc body fixing lug boss (71).

6. The microplate reader filter exchange device according to claim 1, wherein: the filter fixing through hole (21) is internally provided with a step hole (211) which can be matched with the filter (1), and the filter (1) is detachably arranged in the step hole (211).

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