CN113951938A

CN113951938A - Nasal detector

Info

Publication number: CN113951938A
Application number: CN202111177566.8A
Authority: CN
Inventors: 潘丰阳; 熊正
Original assignee: Guangzhou Wondfo Biotech Co Ltd
Current assignee: Guangzhou Wondfo Biotech Co Ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-01-21

Abstract

The invention relates to a nasal detector, which comprises a liquid collecting bottle, a spray bottle and a nozzle head liquid collecting bottle, wherein a liquid collecting cavity and an installation cavity for placing test paper are formed on the nozzle head liquid collecting bottle, the installation cavity is communicated with the liquid collecting cavity, the nozzle head comprises a body part and a head part connected with the body part, the body part is installed at a bottle mouth part of the liquid collecting bottle, a liquid collecting port is formed in the body part and is communicated with the liquid collecting cavity, a spray channel is formed in the head part, and the spray channel is communicated with the spray bottle. Pressing the spray bottle to make the diluent in the spray bottle spray out from the spray channel of the head into the deep part of the nasal cavity; flushing the nasal cavity and completing the sampling process; the liquid with the sample flows out of the nasal cavity, flows back into the liquid collecting cavity after being collected by the liquid collecting port, contacts with the test paper in the mounting cavity and reacts, and finally the test result is displayed by the test paper. Need not to take a sample with the help of the cotton swab, sample and detect the function and realize simultaneously, simplify and detect the flow, save check-out time, avoid obscuring the testee, influence the condition appearance of test result.

Description

Nasal detector

Technical Field

The invention relates to the technical field of germ detection equipment, in particular to a nasal detector.

Background

Generally, the detection of the new coronavirus is mainly implemented by extending a cotton swab into the oral cavity of a tested person to take a sample from the throat, or extending the cotton swab into the nasal cavity of the tested person to take the sample, then putting the cotton swab after sampling into a diluent bottle, fully and uniformly mixing the sample on the cotton swab with the diluent in a hanging, rubbing, stirring and other modes, then dripping the diluted liquid with the sample onto a test strip, reacting with a coating substance on the test strip, and finally displaying a result through a detection window on a corresponding carrier.

However, in the detection method, the cotton swab is used for sampling, if the sampling position or the sampling mode is improper, the phenomenon of missing and misjudging can exist, the cotton swab is manually sampled after sampling, then the cotton swab is added into the diluent, and then the diluent with the sample is dropped on the test strip for judging, so that the operation is complicated and time-consuming; and if many people detect simultaneously, the cotton swab sample is the separate operation with test paper strip interpretation, probably has the quilt survey person of confusion, influences problems such as test result.

Disclosure of Invention

Accordingly, there is a need to provide a nasal detector for the problems of complicated and confusing detection process.

A nasal detector, the nasal detector comprising: the test paper spraying device comprises a liquid collecting bottle, a spraying bottle and a nozzle head, wherein a liquid collecting cavity and an installation cavity used for placing test paper are formed in the liquid collecting bottle, the installation cavity is communicated with the liquid collecting cavity, the nozzle head comprises a body part and a head part connected with the body part, the body part is installed at a bottle opening of the liquid collecting bottle, a liquid collecting opening is formed in the body part and communicated with the liquid collecting cavity, and a spraying channel is formed in the head part and communicated with the spraying bottle.

In one embodiment, an overflow cavity is further formed in the liquid collecting bottle, an overflow port is formed between the overflow cavity and the mounting cavity, the overflow cavity is communicated with the mounting cavity through the overflow port, a sample loading port is formed between the mounting cavity and the liquid collecting cavity, the liquid collecting cavity is communicated with the mounting cavity through the sample loading port, and the overflow port is higher than the sample loading port.

In one embodiment, the liquid collecting bottle comprises a bottle body and a bottle bottom, the bottle bottom is connected with the bottle body in a sealing mode to form a containing cavity in an enclosing mode, a mounting plate is arranged in the containing cavity, the mounting plate and part of the inner wall of the bottle body are enclosed to form the mounting cavity, the bottle bottom comprises an inclined plate which is arranged towards one side where the mounting cavity is located in an inclined mode, and the inclined plate and the mounting plate are arranged at intervals up and down to form the sample loading port.

In one embodiment, the bottle bottom further comprises a horizontal plate with the height lower than that of the inclined plate, one side of the horizontal plate is connected with the lower end of the inclined plate through a connecting plate, the horizontal plate is located in the mounting cavity, and the inclined plate is located in the liquid collecting cavity.

In one embodiment, a partition board is further arranged in the accommodating cavity, the partition board, a part of inner wall of the bottle body and a part of mounting plate are enclosed to form the overflow cavity, and the overflow port is formed in the part of mounting plate.

In one embodiment, the liquid collecting bottle further comprises a bottle cap, the bottle cap is mounted at the bottleneck of the bottle body, a sliding hole is formed in the bottle cap, and the body part of the nozzle head is arranged in the sliding hole and is in sliding fit with the bottle cap; the spraying bottle is arranged in the containing cavity, and the body is sleeved on the spraying bottle and can be in extrusion fit with the spraying bottle.

In one embodiment, the body part comprises a support plate and a surrounding plate, the support plate is of a cambered surface structure with a high middle part and a low periphery, the surrounding plate is of a penetrating cylindrical structure, the periphery of the support plate is connected with the inner wall of the upper end of the surrounding plate, and the liquid collecting port is opened at the periphery of the support plate; the head is arranged in the middle of the support plate and is of a columnar structure, the injection channel penetrates through the head, the top end of the head extends out of the support plate, and the bottom end of the head is communicated with an outlet of the spray bottle;

and/or a handle is arranged on the outer wall of the enclosing plate.

In one embodiment, a positioning seat is arranged on the bottle bottom, and the spray bottle is clamped on the positioning seat;

or the spraying bottle is fixedly connected with the liquid collecting bottle.

In one embodiment, two overflow cavities are arranged on two sides of the installation cavity respectively;

and/or a supporting seat used for clamping the test paper is arranged in the mounting cavity.

In one embodiment, the installation cavity is provided with an observation area for observing the change of the test paper.

When the nasal detector is used, the head part is stretched into the nasal cavity; pressing the spray bottle to make the diluent in the spray bottle spray mist liquid from the spray channel of the head under the pressure and enter the deep part of the nasal cavity; after the mist-like diluents are gathered together to form a liquid, the nasal cavity is flushed and the sampling process is completed; the liquid with the sample flows out of the nasal cavity under the action of gravity, flows back to the liquid collecting cavity in the liquid collecting bottle after being collected by the liquid collecting port on the body part, flows into the mounting cavity communicated with the liquid collecting cavity, contacts with the test paper in the mounting cavity and reacts, and finally, the test result is displayed by the test paper. Through the nasal detector, sampling by means of a cotton swab is not needed, the sampling process is simpler and easier to operate, and missing and misjudgment can be effectively avoided; and the sampling and detecting functions are realized simultaneously, the detecting process is simplified, the detecting time is saved, and the conditions that the detected person is confused and the testing result is influenced are avoided.

Drawings

FIG. 1 is a schematic, exploded view of a nasal detector according to an embodiment of the present application;

FIG. 2 is an assembled schematic view of the nasal detector of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the nasal detector of FIG. 2;

FIG. 4 is a schematic perspective view of a liquid trap of a nasal detector according to an embodiment of the present application;

FIG. 5 is a top view of the liquid trap bottle of FIG. 4.

10. A liquid collecting bottle; 110. a bottle body; 112. an observation area; 114. a connecting plate; 120. a bottle bottom; 122. an inclined plate; 124. a horizontal plate; 126. positioning seats; 128. a base plate; 130. mounting plates, 132 and a supporting seat; 134. a first plate; 136. a second plate; 140. a partition plate; 150. a bottle cap; 152. a slide hole; 101. a liquid collection cavity; 102. a mounting cavity; 103. an overflow chamber; 104. an overflow port; 105. a sample loading port; 106. an accommodating chamber; 20. a spray bottle; 30. a nozzle head; 310. a body portion; 312. a support plate; 314. enclosing plates; 302. a liquid collection port; 320. a head portion; 304. an injection channel; 330. a handle; 40. and (4) test paper.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "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 used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the 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," "secured," and the like are to be construed broadly and can, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. 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.

Referring to fig. 1 to 3, a nasal detector according to an embodiment of the present invention includes: a liquid collecting bottle 10, a spray bottle 20 and a nozzle head 30. The liquid collecting bottle 10 is provided with a liquid collecting cavity 101 and an installation cavity 102 for placing the test paper 40, and the installation cavity 102 is communicated with the liquid collecting cavity 101. The nozzle head 30 comprises a body 310 and a head 320 connected with the body 310, the body 310 is mounted at the mouth of the liquid collecting bottle 10, the body 310 is provided with a liquid collecting port 302, the liquid collecting port 302 is communicated with the liquid collecting chamber 101, the head 320 is provided with a spraying channel 304, and the spraying channel 304 is communicated with the spray bottle 20.

When in use, the head 320 is inserted into the nasal cavity; the spray bottle 20 is pressed, so that the diluent in the spray bottle 20 is sprayed out of the spray channel 304 of the head 320 under the action of pressure and enters the deep part of the nasal cavity; after the mist-like diluents are gathered together to form a liquid, the nasal cavity is flushed and the sampling process is completed; the liquid with the sample flows out of the nasal cavity under the action of gravity, flows back into the liquid collecting cavity 101 in the liquid collecting bottle 10 after being collected by the liquid collecting port 302 on the body part 310, flows into the mounting cavity 102 communicated with the liquid collecting cavity 101, contacts with the test paper 40 in the mounting cavity 102 and reacts, and finally the test result is displayed by the test paper 40. Through the nasal detector, sampling by means of a cotton swab is not needed, the sampling process is simpler and easier to operate, and missing and misjudgment can be effectively avoided; and the sampling and detecting functions are realized simultaneously, the detecting process is simplified, the detecting time is saved, and the conditions that the detected person is confused and the testing result is influenced are avoided. And under the condition that the positive test is not detected, the sample liquid is taken out, and the test paper 40 is only needed to be replaced in the next detection, so that the repeated use function can be realized, and the paper cost is reduced.

Alternatively, the spray bottle 20 is installed in the liquid collecting bottle 10, the spray bottle 20 can use the existing bottle for diluting the sample or other reagent liquid participating in the reaction, and the nozzle head 30 cooperates with the spray bottle 20 to achieve the functions of atomizing and spraying the liquid in the bottle. In one embodiment, the positioning seat 126 is arranged on the bottle bottom 120 of the liquid collecting bottle 10, and the spray bottle 20 is clamped on the positioning seat 126. Alternatively, in other embodiments, the spray bottle 20 is fixedly connected with the liquid collecting bottle 10; such as the spray bottle 20 and the liquid collecting bottle 10 are simplified into an integral structure.

Referring to FIG. 3, in one embodiment, the mounting cavity 102 is positioned to provide a viewing area 112 for viewing the change in the test strip 40. The user can view the change of the test paper 40 in the mounting chamber 102 through the viewing area 112 to determine the detection result. The viewing area 112 may be made transparent.

Further, referring to fig. 3-5, in one embodiment, an overflow cavity 103 is further formed on the liquid collecting bottle 10, an overflow port 104 is opened between the overflow cavity 103 and the installation cavity 102, and the overflow cavity 103 is communicated with the installation cavity 102 through the overflow port 104. A sample loading port 105 is formed between the installation cavity 102 and the liquid collecting cavity 101, the liquid collecting cavity 101 is communicated with the installation cavity 102 through the sample loading port 105, and the setting height of the overflow port 104 is higher than that of the sample loading port 105. The liquid with sample collected by the liquid collecting cavity 101 flows into the installation cavity 102 through the sample loading port 105 and contacts and reacts with the test paper 40 in the installation cavity 102, and because the setting height of the overflow port 104 is higher than that of the sample loading port 105, when the liquid with sample is too much, the redundant liquid with sample is transferred to the overflow cavity 103 through the overflow port 104, so that the phenomenon that the liquid with sample rushes out in the installation cavity 102 to influence the detection result is prevented.

Referring to fig. 4 and 5, in one embodiment, two overflow cavities 103 are provided, and are respectively disposed on two sides of the installation cavity 102. The excess sample-bearing liquid can be diverted by means of overflow chambers 103 on both sides of the installation chamber 102. The overflow ports 104 of the two overflow chambers 103 can be arranged at the same height or at two height positions, one higher and one lower. In other embodiments, only one overflow chamber 103 or more than two overflow chambers may be provided.

Referring to fig. 3-5, in one embodiment, the liquid collecting bottle 10 includes a bottle body 110 and a bottle bottom 120, and the bottle bottom 120 and the bottle body 110 are hermetically connected to enclose a containing cavity 106. A mounting plate is arranged in the accommodating cavity 106, and the mounting plate and a part of the inner wall of the bottle body 110 enclose to form the mounting cavity 102. Referring to fig. 4 and 5, in one embodiment, the mounting plate includes a first plate 134 and two second plates 136 located on two sides of and connected to the first plate 134, the first plate 134 and the two second plates 136 are connected to form a "U" shaped structure, one side of the two second plates 136 away from the first plate 134 is connected to the inner wall of the body 110, so as to form the mounting cavity 102, and the test paper 40 is vertically installed in the mounting cavity 102. Wherein the overflow port 104 is provided in the second plate 136 and the sample loading port 105 is provided in the first plate 134.

Referring to fig. 3, the bottle bottom 120 further includes an inclined plate 122 disposed obliquely toward a side where the mounting cavity 102 is located, the mounting plate is located in the accommodating cavity 106, and the inclined plate 122 and the mounting plate are spaced vertically to form the sample loading port 105. As shown in FIG. 4, a gap is left between the bottom end of the first plate 134 and the inclined plate 122 to form a sample loading port 105, and the sample-carrying liquid in the liquid collecting chamber 101 flows into the mounting chamber 102 through the sample loading port 105 along the inclined direction of the inclined plate 122, so that the rapid reaction between the sample-carrying liquid and the test paper 40 is realized. Further, in one embodiment, the positioning seat 126 is disposed on the inclined plate 122, the spray bottle 20 is clamped on the positioning seat 126, and the spray bottle is clamped in the accommodating cavity 106 through the positioning seat. Referring to fig. 4 and 5, in order to ensure the stability of the spray bottle 20, the area of the inclined plate 122 for mounting the spray bottle 20 is provided with a backing plate 128, and the backing plate 128 is higher at one end and lower at the other end to compensate the inclination amplitude of the inclined plate 122, so that the spray bottle 20 can be horizontally placed in the liquid collecting cavity 101 in the accommodating cavity 106, and the spraying of the diluent in the spray bottle 20 is ensured.

Further, in one embodiment, a partition 140 is further disposed in the accommodating cavity 106, the partition 140 encloses with a portion of the inner wall of the bottle body 110 and a portion of the mounting plate to form the overflow cavity 103, and the overflow opening 104 is disposed on the portion of the mounting plate. Referring to fig. 4 and 5, one side of the partition 140 is connected to the inner wall of the body 110, and the other side of the partition 140 is connected to the junction of the first plate 134 and the second plate 136, wherein the overflow opening 104 is opened in the second plate 136.

In other embodiments, the mounting plate may be provided in other shapes. Alternatively, in other embodiments, the mounting plate is disposed outside the accommodating cavity 106, and the mounting plate and a part of the outer wall of the bottle body 110 enclose to form the mounting cavity 102; the outer wall of the part is provided with a sample loading port 105, so that the liquid collection cavity 101 is communicated with the installation cavity 102. Further, the bottle bottom 120 includes an inclined plate 122 inclined toward the side of the mounting chamber 102, and the inclined plate 122 and the partial outer wall are spaced from each other up and down to form the sample loading port 105. When the mounting plate is positioned outside the accommodating cavity 106, the inclined plate 122 and the part of the outer wall of the bottle body 110 for enclosing and forming the mounting cavity 102 are arranged at intervals up and down to form the sample loading port 105, and the sample-carrying liquid in the liquid collecting cavity 101 flows out of the accommodating cavity 106 along the inclined direction of the inclined plate 122 and flows into the mounting cavity 102 through the sample loading port 105.

Referring to fig. 3, optionally, in one embodiment, the bottle bottom 120 further includes a horizontal plate 124 disposed at a lower height than the inclined plate 122, one side of the horizontal plate 124 is connected to a lower end of the inclined plate 122 by a connecting plate 114, the horizontal plate 124 is located in the mounting cavity 102, and the inclined plate 122 is located in the liquid collecting cavity 101. The bottom wall of the mounting cavity 102 is lower than that of the liquid collection cavity 101, so that sample liquid in the liquid collection cavity 101 can be conveniently gathered in the low-lying mounting cavity 102, even a small amount of sample liquid can be reacted with the test paper 40 in the mounting cavity 102, and a detection result can be obtained smoothly. In other embodiments, the horizontal plate 124 may be eliminated, and the inclined plate 122 may extend into the bottom wall of the installation cavity 102 along the sample loading port 105 to form the bottom wall of the installation cavity 102. Or the bottom wall of the mounting cavity 102 is provided as a V-shaped plate or the like.

Referring to fig. 4 and 5, optionally, in one embodiment, a support seat for clamping the test paper 40 is provided in the mounting cavity 102. The test paper 40 in the mounting cavity 102 is kept vertically arranged through the supporting seat, so that the sample liquid at the bottom end can react with the lower part of the test paper 40 to obtain a detection result,

further, referring to fig. 1-3, in one embodiment, the liquid trap bottle 10 further includes a bottle cap 150. The bottle cap 150 is installed at the mouth of the bottle body 110, the bottle cap 150 is provided with a slide hole 152, and the body 310 of the nozzle head 30 is disposed in the slide hole 152 and slidably engaged with the bottle cap 150. The nozzle head 30 is in sliding fit with the bottle cap 150 through the sliding hole 152, when in use, the body part 310 is pressed, the body part 310 slides inwards along the sliding hole 152 and is further pressed to the spray bottle 20, and therefore the diluent in the spray bottle 20 is sprayed out under the action of pressure; the body 310 can automatically slide along the sliding hole 152 to the original position by releasing the body 310. In this embodiment, the spray bottle 20 is disposed in the accommodating cavity 106, and the body portion 310 is sleeved on the spray bottle 20 and can be press-fitted with the spray bottle 20. In other embodiments, the diluent in the spray bottle 20 can be squeezed out by other structures, such as a squeeze switch located at the bottom 120 or the side of the liquid collecting bottle 10, as long as the diluent in the spray bottle 20 can be squeezed out and sprayed out from the head 320.

Specifically, referring to fig. 1-3, in one embodiment, the body portion 310 includes a support plate 312 and an enclosure 314. Wherein, the supporting plate 312 is a cambered surface structure with a high middle part and a low periphery. The surrounding plate 314 is a penetrating cylindrical structure, and the periphery of the supporting plate 312 is connected with the inner wall of the upper end of the surrounding plate 314. The closure 314 is connected to the support plate 312 to form a cap-like structure that can be placed over the spray bottle 20, with the closure 314 slidably engaging the slide opening 152 of the bottle cap 150. Referring to fig. 2, the liquid collection port 302 is opened at the outer periphery of the support plate 312. Set the backup pad 312 to the cambered surface structure that the high periphery of middle part is low to set up album liquid mouth 302 in the lower peripheral position of height, take appearance liquid to flow in album liquid mouth 302 at cambered surface structure's guide effect, the recovery of the liquid of taking the appearance of being convenient for utilizes bounding wall 314 to form simultaneously and keeps off the wall, avoids taking appearance liquid to leak. In this embodiment, four liquid collecting ports 302 are provided, which are respectively provided at four corners of the supporting plate 312; in other embodiments, the liquid collecting port 302 may not be disposed at the corner of the supporting plate 312, the supporting plate 312 is connected to the surrounding plate 314 through the corner portion, and the liquid collecting port 302 is disposed between two adjacent corners.

Further, the head 320 is disposed at the middle of the support plate 312. On the one hand, the head 320 is arranged in the middle of the higher part of the supporting plate, so that the head 320 can be conveniently stretched into the nasal cavity during use, and on the other hand, the liquid collecting port 302 is positioned around the head 320, so that the liquid with the sample in the nasal cavity can conveniently flow into the liquid collecting port 302. Specifically, the head 320 has a cylindrical structure, and the injection channel 304 penetrates through the head 320. Optionally, the head 320 has a smaller diameter at its top end than at its bottom end, which serves as a guide for facilitating insertion of the top end of the head 320 into the nasal cavity. The top end of the head 320 extends out of the supporting plate 312 to facilitate the insertion of the top end of the head 320 into the nasal cavity without interfering with the supporting plate 312, and the protruding length of the top end of the head 320 is suitable for the length extending into the nasal cavity; the bottom end of the head 320 is communicated with the outlet of the spray bottle 20, and a bayonet matched with the outlet of the spray bottle 20 can be arranged at the bottom end, and the outlet of the spray bottle 20 is in butt-joint communication with the injection channel 304 of the nozzle head 30 by being clamped on the spray bottle 20 through the bayonet.

Optionally, a handle 330 is disposed on an outer wall of the enclosure 314. The diluent in the base spray bottle 20 is facilitated by squeezing the handle 330 to move the nozzle head 30 along the slide hole 152. As can be seen in fig. 3, opposite sides of the enclosure 314 are provided with handles 330. When the nasal cavity sampler is used, the head 320 of the nozzle head 30 extends into the nasal cavity, the handles 330 can be respectively pressed by the thumbs of the two hands, the other fingers of the two hands hold the bottle body 110 of the liquid collecting bottle 10 and keep still, the thumbs press the handles 330 downwards to spray diluent into the nasal cavity, the nasal cavity is flushed and sampled, the sampled liquid flows out of the nasal cavity under the action of gravity, flows back into the liquid collecting cavity 101 after being collected by the liquid collecting port 302 on the body part 310, then flows into the mounting cavity 102 to contact with the test paper 40 to react, and finally the test paper 40 displays a detection result.

The nasal detector of each embodiment has an integrated sampling and detecting operation structure, can be used for detecting viruses such as new coronavirus and influenza virus which can be transmitted through respiration, and can be used for detecting samples in nasal cavities. Under the condition that the positive test is not detected, after the sample liquid is taken out, the test paper is only required to be replaced by 40 pieces in the next detection, so that the repeated use function can be realized, and the environment-friendly and energy-saving effects are achieved.

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 express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A nasal detector, characterized in that the nasal detector comprises: the test paper spraying device comprises a liquid collecting bottle, a spraying bottle and a nozzle head, wherein a liquid collecting cavity and an installation cavity used for placing test paper are formed in the liquid collecting bottle, the installation cavity is communicated with the liquid collecting cavity, the nozzle head comprises a body part and a head part connected with the body part, the body part is installed at a bottle opening of the liquid collecting bottle, a liquid collecting opening is formed in the body part and communicated with the liquid collecting cavity, and a spraying channel is formed in the head part and communicated with the spraying bottle.

2. The nasal detector according to claim 1, wherein an overflow chamber is further formed in the liquid collection bottle, an overflow port is formed between the overflow chamber and the mounting chamber, the overflow chamber is communicated with the mounting chamber through the overflow port, a sample loading port is formed between the mounting chamber and the liquid collection chamber, the liquid collection chamber is communicated with the mounting chamber through the sample loading port, and the overflow port is higher than the sample loading port.

3. The nasal detector according to claim 2, wherein the liquid collection bottle comprises a bottle body and a bottle bottom, the bottle bottom and the bottle body are hermetically connected and enclosed to form an accommodating cavity, an installation plate is arranged in the accommodating cavity, the installation plate and part of the inner wall of the bottle body enclose the installation cavity, the bottle bottom comprises an inclined plate which is obliquely arranged towards one side of the installation cavity, and the inclined plate and the installation plate are vertically arranged at intervals to form the sample loading port;

or, hold the chamber and be provided with the mounting panel outward, the mounting panel encloses with the partial outer wall of body and closes and forms the installation cavity, include at the bottom of the bottle court the hang plate that the one side slope at installation cavity place set up, the hang plate with the interval sets up from top to bottom between the partial outer wall forms go up appearance mouth.

4. The nasal detector of claim 3, wherein the bottom further comprises a horizontal plate disposed at a height lower than the inclined plate, one side of the horizontal plate is connected to a lower end of the inclined plate via a connecting plate, the horizontal plate is disposed in the mounting cavity, and the inclined plate is disposed in the liquid collection cavity.

5. The nasal detector of claim 3, wherein a partition is further disposed in the accommodating chamber, the partition encloses with a portion of the inner wall of the bottle body and a portion of the mounting plate to form the overflow chamber, and the overflow port is opened in the portion of the mounting plate.

6. The nasal detector of any one of claims 3-5, wherein the liquid collection bottle further comprises a cap, the cap is mounted at the mouth of the body, the cap defines a slide hole, and the body of the nozzle head is disposed in the slide hole and slidably engaged with the cap; the spraying bottle is arranged in the containing cavity, and the body is sleeved on the spraying bottle and can be in extrusion fit with the spraying bottle.

7. The nasal detector according to claim 6, wherein the body portion comprises a support plate and a surrounding plate, the support plate is of a cambered surface structure with a high middle part and a low periphery, the surrounding plate is of a through cylindrical structure, the periphery of the support plate is connected with the inner wall of the upper end of the surrounding plate, and the liquid collecting port is opened at the periphery of the support plate; the head is arranged in the middle of the support plate and is of a columnar structure, the injection channel penetrates through the head, the top end of the head extends out of the support plate, and the bottom end of the head is communicated with an outlet of the spray bottle;

and/or a handle is arranged on the outer wall of the enclosing plate.

8. The nasal detector of claim 6, wherein the base of the bottle has a positioning seat, and the spray bottle is clamped to the positioning seat;

or the spraying bottle is fixedly connected with the liquid collecting bottle.

9. The nasal detector of claim 6, wherein the number of the overflow chambers is two, and the two overflow chambers are respectively disposed at two sides of the mounting chamber;

10. A nasal detector according to any one of claims 1 to 5, wherein the mounting cavity is located with a viewing area for viewing changes in the test strip.