CN111744699A

CN111744699A - Press switching mechanism, sprayer containing press switching mechanism and application of sprayer

Info

Publication number: CN111744699A
Application number: CN202010736968.6A
Authority: CN
Inventors: 马石金; 艾坤
Original assignee: Tsingke Biotechnology Co Ltd
Current assignee: Tsingke Biotechnology Co Ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2020-10-09

Abstract

The invention provides a pressing switching mechanism, a sprayer containing the same and application thereof. The pressing switching mechanism comprises a body, wherein a first spray head, a second spray head and the switching mechanism are arranged on the body, the switching mechanism comprises a driving piece, an intermittent motion piece, a first pressing piece and a second pressing piece, the driving piece can drive the intermittent motion piece to perform intermittent motion, the intermittent motion piece is respectively connected with the first pressing piece and the second pressing piece, and the intermittent motion piece can drive the first pressing piece and the second pressing piece to sequentially press the first spray head and the second spray head in an intermittent motion state. The sprayer with the pressing switching mechanism can conveniently and quickly realize spraying and mixing of two different liquids, time is saved, efficiency is improved, and good mixing and using effects can be realized.

Description

Press switching mechanism, sprayer containing press switching mechanism and application of sprayer

Technical Field

The invention relates to the technical field of mechanical equipment, in particular to a pressing switching mechanism, a sprayer containing the pressing switching mechanism and application of the sprayer.

Background

A sprayer is an apparatus for making a liquid into a mist by suction to uniformly spray the liquid onto other objects, and generally comprises an air compressor, a suction pipe, a nozzle, and the like. At present, most of sprayers in the market adopt a single spray head for spraying, and the sprayers can only be applied to one liquid, but cannot simultaneously use two different liquids, and cannot realize mixing of the two liquids at the moment of spraying.

In some occasions, more than two solutions need to be mixed and sprayed for use, and before the two solutions are sprayed out, the two solutions are mutually independent, so that the two solutions are not influenced and polluted. For example, when nucleic acid cleaning solution is sprayed to degrade nucleic acid, it is usually necessary to spray the solution A in mist form, and then spray the solution B to mix with the solution A, so as to achieve the effect of nucleic acid degradation; meanwhile, the solution A and the solution B cannot be mixed in advance and then used, and the purpose of degrading nucleic acid with the highest efficiency can be achieved only by uniformly mixing the two solutions when the two solutions are sprayed out simultaneously. In view of the above situation, at present, only two sprayers are used to store and spray the liquid a and the liquid B, and the sprayers need to be held by both hands to spray during operation, which is not only complicated to operate, but also fails to achieve good mixing and using effects.

In view of this, the invention is particularly proposed.

Disclosure of Invention

The invention aims to provide a pressing switching mechanism, a sprayer containing the pressing switching mechanism and application of the sprayer.

The invention provides a pressing switching mechanism which comprises a body, wherein a first spray head, a second spray head and a switching mechanism are arranged on the body, the switching mechanism comprises a driving piece, an intermittent motion piece, a first pressing piece and a second pressing piece, the driving piece can drive the intermittent motion piece to perform intermittent motion, the intermittent motion piece is respectively connected with the first pressing piece and the second pressing piece, and the intermittent motion piece can drive the first pressing piece and the second pressing piece to sequentially press the first spray head and the second spray head in an intermittent motion state.

In one embodiment, the intermittent motion member is an incomplete gear.

In one embodiment, the driving member is a rack, and the rack can be meshed with the incomplete gear.

In an embodiment, the incomplete gear has a first tooth group and a second tooth group, the incomplete gear can drive the first pressing member to press the first nozzle in a state where the rack is meshed with the first tooth group, and the incomplete gear can drive the second pressing member to press the second nozzle in a state where the rack is meshed with the second tooth group.

Further, the first tooth group and the second tooth group are arranged oppositely at intervals, and a pawl is arranged between the first tooth group and the second tooth group.

In an embodiment, the pressing and switching mechanism further includes a slide rail disposed on the body, and the rack is slidably disposed on the slide rail.

In one embodiment, the first pressing piece and the second pressing piece are two cams with opposite base circle directions, a connecting shaft penetrates through the center of the incomplete gear, and the two cams are oppositely arranged at two ends of the connecting shaft.

Furthermore, an operating handle is arranged at the outer end of the driving part.

The invention also provides a sprayer which comprises a bottle body and the pressing switching mechanism, wherein the bottle body is provided with a first cavity and a second cavity which are separated from each other, a body of the pressing switching mechanism is covered on the bottle body, and a first suction pipe and a second suction pipe which are connected with the first spray head and the second spray head are respectively inserted into the first cavity and the second cavity.

The invention also provides spraying equipment for digesting nucleic acid pollution, which comprises the sprayer, wherein the first cavity is filled with the solution A, the second cavity is filled with the solution B, the solution A is a hydrogen peroxide solution with the mass content of 0.2-0.4%, the solution B is a mixed solution of metal ions and a buffer, the concentration of the metal ions in the mixed solution is 0.5-1.5mM, the concentration of the buffer is 3-5mM, and the pH value of the mixed solution is 7.0-8.0.

Specifically, the metal ion may be selected from at least one of iron, manganese, copper, nickel, cobalt, and zinc ions, preferably copper ions; the buffer may be selected from at least one of Tris, MOPS, HEPES, TAPSO, Tricine and DIPSO, preferably Tris.

In one embodiment, the liquid B is CuSO₄And Tris; CuSO in the mixed solution₄The concentration of (3) is 1mM, and the concentration of Tris is 4 mM; the solution A is a hydrogen peroxide solution with the mass content of 0.3 percent; the pH value of the mixed solution is 7.5.

The pressing switching mechanism is provided with the first spray head, the second spray head and the switching mechanism on the body, and the pressing operation of the first spray head and the second spray head can be conveniently and quickly realized through the switching mechanism, so that the time is saved, the efficiency is improved, and meanwhile, good mixing and using effects can be realized.

The sprayer of the invention is provided with the pressing switching mechanism, can store two different liquids, and realizes the spraying and uniform mixing of the two liquids, and particularly has short treatment time and good effect of eliminating nucleic acid pollution when being used for spraying the nucleic acid cleaning solution A and the nucleic acid cleaning solution B.

Drawings

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

Fig. 1 is a schematic structural view of a pressing switching mechanism according to an embodiment of the present invention;

fig. 2 is a front view of a pressing switch mechanism according to an embodiment of the present invention;

fig. 3 is a left side view of the pressing switch mechanism according to an embodiment of the present invention;

fig. 4 is a plan view of a pressing switch mechanism according to an embodiment of the present invention;

FIG. 5 is a graph showing the test results of example 3 of the present invention.

Description of reference numerals:

1: a body; 2: a first nozzle; 3: a second nozzle; 4: a rack; 5: an incomplete gear; 51: a first set of teeth; 52: a second set of teeth; 53: a pawl; 6: a first pressing member; 7: a second pressing member; 8: a slide rail; 9: a connecting shaft; 10: a handle is operated.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "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.

Example 1

Referring to fig. 1 to 4, the present embodiment provides a pressing switching mechanism, which includes a body 1, a first nozzle 2, a second nozzle 3 and a switching mechanism are disposed on the body 1, the switching mechanism includes a driving part, an intermittent motion part, a first pressing part 6 and a second pressing part 7, the driving part can drive the intermittent motion part to perform intermittent motion, the intermittent motion part is respectively connected with the first pressing part 6 and the second pressing part 7, and the intermittent motion part can drive the first pressing part 6 and the second pressing part 7 to sequentially press the first nozzle 2 and the second nozzle 3 in an intermittent motion state.

The main body 1 is used to cooperate with the bottle body to form a closed liquid storage space, and the specific structure is not limited strictly, for example, a cover body with an internal thread may be provided, and the pressing and switching mechanism may be fixed on the bottle body by a threaded connection.

The first and

second nozzles

2 and 3 are used for spraying different liquids, and may be conventional nozzle structures in the field; it will be appreciated that the first 2 and second 3 spray heads will typically have a suction tube, air compressor, spray nozzle, etc. which are arranged in a conventional manner. The arrangement mode of the first spray head 2 and the second spray head 3 on the body 1 is not strictly limited; specifically, the first nozzle 2 and the second nozzle 3 may be relatively disposed on the body 1, the suction pipes of the first nozzle 2 and the second nozzle 3 respectively penetrate out of the body 1, and the switching mechanism may be disposed between the first nozzle 2 and the second nozzle 3.

The driving part of the switching mechanism is used for driving the intermittent moving part to perform intermittent movement, the intermittent moving part is a manual operation part of the sprayer, and an operator operates the driving part to further realize the spraying operation of the sprayer; the intermittent motion piece is used for performing intermittent motion under the driving of the driving piece, and the first spray head 2 and the second spray head 3 are sequentially pressed through the intermittent motion of the intermittent motion piece; the first pressing piece 6 and the second pressing piece 7 are used for driving the intermittent motion piece to move when the intermittent motion piece performs intermittent motion, and then the sequential pressing operation of the first spray head 2 and the second spray head 3 is performed. That is, the switching mechanism switches the first and

second heads

2 and 3 by the mutual movement and cooperation of the active member, the intermittent member, and the first and second pressing

members

6 and 7.

The specific structures of the active member, the intermittent motion member, the first pressing member 6, and the second pressing member 7 are not strictly limited as long as the above-described functions can be achieved.

In this embodiment, the intermittent member is an incomplete gear 5, the number of teeth of which is incomplete, and the intermittent rotation of which is realized by the driving member. Specifically, the incomplete gear 5 can drive the first pressing piece 6 to press the first nozzle 2 in the first rotation process, and at the moment, the first nozzle 2 performs spraying operation; the incomplete gear 5 can drive the second pressing piece 7 to press the second nozzle 3 in the second rotation process, and the second nozzle 3 performs spraying operation; meanwhile, the first pressing piece 6 does not form a pressing effect any more in the second rotation process, and the first nozzle 2 can return to the original non-spraying state; the incomplete gear 5 can drive the first pressing piece 6 to press the first nozzle 2 again in the third rotation process, so that the cyclic spraying operation of the first nozzle 2 and the second nozzle 3 is performed.

In the present embodiment, the driving member may be provided as a rack 4; it will be appreciated that the rack 4 can be brought into engagement with the partial gear 5. The intermittent rotation of the incomplete gear 5 can be realized by pushing the rack 4.

More specifically, the incomplete gear 5 of the present embodiment has a first tooth group 51 and a second tooth group 52, and the incomplete gear 5 can drive the first pressing member 6 to press the first nozzle 2 in a state where the rack 4 is meshed with the first tooth group 51, and the incomplete gear 5 can drive the second pressing member 7 to press the second nozzle 3 in a state where the rack 4 is meshed with the second tooth group 52. The number of teeth and the arrangement position of the first gear set 51 and the second gear set 52 are not strictly limited, and can be reasonably arranged according to actual conditions as long as the incomplete gear 5 can be ensured to realize the above functions.

In the present embodiment, the first tooth set 51 and the second tooth set 52 are spaced apart from each other, and the pawl 53 is disposed between the first tooth set 51 and the second tooth set 52. At this time, when the rack 4 is pushed for the first time, the rack 4 is engaged with the first tooth group 51 and drives the first pressing piece 6 to press the first nozzle 2; when the first tooth group 51 is separated from the rack 4, the rack 4 can be restored for the next pushing operation, and because the pawl 53 is arranged at the interval between the first tooth group 51 and the second tooth group 52, the unidirectional movement can be realized, and the retraction and restoration of the rack 4 are not influenced; when the rack 4 is pushed next time, the pawl 53 cooperates with the rack 4 and drives the incomplete gear 5 to rotate so as to enable the rack 4 to be meshed with the second gear set 52, and at the moment, the second pressing piece 7 can be driven to press the second nozzle 3. Therefore, the pressing switching mechanism can realize that the first liquid is sprayed for the first time, the second liquid is sprayed for the second time to mix, the first liquid is sprayed for the third time, and the first liquid and the second liquid are circulated in sequence.

Further, the pressing and switching mechanism further comprises a sliding rail 8, and the sliding rail 8 is used for supporting the rack 4 to slide; at this time, the slide rail 8 can be arranged on the body 1, and the rack 4 can be slidably arranged on the slide rail 8, so that the operation is stably performed.

In this embodiment, the first pressing member 6 and the second pressing member 7 may be provided as two cams (respectively referred to as a first cam and a second cam) having opposite base circle directions, a connecting shaft 9 is inserted through the center of the partial gear 5, and the two cams are oppositely disposed at both ends of the connecting shaft 9.

When the rack 4 is pushed for the first time, the incomplete gear 5 drives the two cams to move through the connecting shaft 9, at the moment, the protruding end of the first cam moves to the first nozzle 2 to form pressing force on the first nozzle 2, and the protruding end of the second cam is far away from the second nozzle 3 to not press the second nozzle 3, so that the spraying operation of the first nozzle 2 can be realized when the rack 4 is pushed for the first time; when the rack 4 is pushed for the second time, the protruding end of the first cam moves to be far away from the first nozzle 2, the first nozzle 2 returns to the original state without spraying, and meanwhile, the protruding end of the second cam moves to the second nozzle 3 to form pressing force on the second nozzle 3, so that the spraying operation of the second nozzle 3 can be realized when the rack 4 is pushed for the second time; wherein, when promoting rack 4 for the first time, incomplete gear 5 rotates the half-turn, and first shower nozzle 2 sprays, and when promoting rack 4 for the second time, incomplete gear 5 rotates other half-turn, and second shower nozzle 3 sprays, so circulation.

In addition, an operating handle 10 may be provided at the outer end of the rack 4 for easy operation; the shape and structure of the operating handle 10 are not strictly limited as long as the operation of the active member is facilitated.

The pressing switching mechanism of the embodiment is provided with a first spray head 2, a second spray head 3 and a switching mechanism on a body 1, and the switching mechanism realizes the pressing switching of the first spray head 2 and the second spray head 3 through the mutual movement and the cooperation of an active piece, an intermittent motion piece, a first pressing piece 6 and a second pressing piece 7. Above-mentioned press switching mechanism can make things convenient for, swiftly realize pressing down the operation in proper order of first shower nozzle 2 and second shower nozzle 3, not only save the time, improved efficiency, can realize the good mixture and the result of use of two kinds of different liquid simultaneously.

Example 2

Referring to fig. 1 to 4, the present embodiment provides a sprayer including a bottle body having a first chamber and a second chamber separated from each other, and a pressing switching mechanism of embodiment 1, wherein a body 1 of the pressing switching mechanism is covered on the bottle body, and a first straw and a second straw connected to a first nozzle 2 and a second nozzle 3 are respectively inserted into the first chamber and the second chamber.

The bottle body is used for storing two different liquids which are respectively stored in a first cavity and a second cavity of the bottle body; the structure, the size and the like of the bottle body are not strictly limited and can be reasonably arranged according to actual needs.

The nebulizer of the present embodiment is provided with the press switch mechanism of embodiment 1, which is capable of storing two different liquids and achieving nebulization and uniform mixing of the two liquids.

Example 3

This example provides a spray apparatus for digesting nucleic acid contamination, comprising the spray apparatus of example 2, comprising a first chamber containing solution A and a second chamber containing solution B; wherein, the solution A can be hydrogen peroxide solution with the mass content of 0.2-0.4%, the solution B can be mixed solution of metal ions and buffer, the concentration of the metal ions in the mixed solution is 0.5-1.5mM, the concentration of the buffer is 3-5mM, and the pH value of the mixed solution is 7.0-8.0.

More particularly, in one embodimentIn one embodiment, the solution A is 0.3% hydrogen peroxide solution, and the solution B is CuSO₄And Tris, CuSO in the mixed solution₄The concentration of (3) was 1mM, the concentration of Tris was 4mM, and the pH of the mixed solution was 7.5.

The 30% hydrogen peroxide mother liquor was diluted to a mass concentration of 0.3% with ultrapure water, that is, 99 parts of ultrapure water was added to 1 part of 30% hydrogen peroxide mother liquor, and the mixture was mixed to obtain solution a.

Weighing 0.25g of copper sulfate pentahydrate and 0.49g of Tris, adding into 1L of ultrapure water, mixing uniformly, and adjusting the pH value to 7.5 to obtain solution B.

And respectively filling the solution A and the solution B into a first cavity and a second cavity of a sprayer to obtain the spraying equipment for digesting the nucleic acid pollution.

With reference to FIGS. 1 to 4, the above-described spray apparatus for digesting nucleic acid contamination was used for the test in the following manner:

pUC19 was first diluted to 1 ng/. mu.L and sprayed onto the bench.

Experimental groups: an operating handle 10 is pressed, a rack 4 moves and drives an incomplete gear 5 to rotate, the protruding end of a first cam moves to the position of a first spray head 2 to press the first spray head 2, the first spray head 2 sprays liquid A, and the spraying amount of the liquid A is 20mL/m²A surface; the pressing operation is carried out again after the operation handle 10 is returned, at the moment, the protruding end of the second cam moves to the second spray head 3 to press the second spray head 3, the second spray head 3 sprays the liquid B, and the spraying amount of the liquid B is 20mL/m²A surface.

Control group: the surface of the above pUC 19-sprayed table was rinsed twice with distilled water and then wiped dry with a clean absorbent paper.

And respectively dipping the table top of the workbench which is treated by the experimental group and the control group with ultrapure water by using a sterile cotton swab to smear and sample on the table top, immersing the cotton swab into 500 mu L of ultrapure water, stirring, uniformly mixing by vortex, and then sampling to perform PCR amplification identification, wherein the result is shown in figure 5.

The results in FIG. 5 show that: the result accuracy is high when the test is carried out on the workbench after the nucleic acid pollution is digested by the spraying equipment, and the nucleic acid pollution does not exist, so that the spraying equipment can well eliminate the nucleic acid pollution on the surface of the workbench.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a press switching mechanism, a serial communication port, including the body, be equipped with first shower nozzle, second shower nozzle and switching mechanism on the body, switching mechanism includes the initiative piece, intermittent motion piece, first pressing member and second pressing member, and the initiative piece can drive the intermittent motion piece and carry out intermittent motion, and the intermittent motion piece is connected with first pressing member and second pressing member respectively, and the intermittent motion piece can drive first pressing member and second pressing member and press first shower nozzle and second shower nozzle in proper order under the intermittent motion state.

2. The push-to-switch mechanism according to claim 1, wherein the intermittent motion member is an incomplete gear.

3. The push-to-switch mechanism according to claim 2, wherein the driving member is a rack gear capable of engaging with the partial gear.

4. The pressing and switching mechanism according to claim 3, wherein the incomplete gear has a first set of teeth and a second set of teeth, the incomplete gear can drive the first pressing member to press the first nozzle in a state where the rack is engaged with the first set of teeth, and the incomplete gear can drive the second pressing member to press the second nozzle in a state where the rack is engaged with the second set of teeth.

5. The push-to-switch mechanism of claim 4 wherein the first set of teeth is spaced apart from the second set of teeth, and a pawl is disposed between the first set of teeth and the second set of teeth.

6. The push-to-switch mechanism according to claim 3, further comprising a slide rail disposed on the body, wherein the rack is slidably disposed on the slide rail.

7. The pressing switching mechanism according to claim 2, wherein the first pressing member and the second pressing member are two cams having opposite base circle directions, a connecting shaft is inserted through a center of the partial gear, and the two cams are oppositely disposed at both ends of the connecting shaft.

8. The push switch mechanism of claim 1, wherein an operating handle is provided at an outer end of the active member.

9. An atomizer, characterized by, including a bottle body and the press switch mechanism of any one of claims 1-8, the bottle body having a first chamber and a second chamber separated from each other, the body of the press switch mechanism covering the bottle body, a first straw and a second straw connected to the first nozzle and the second nozzle being inserted in the first chamber and the second chamber, respectively.

10. A spraying device for digesting nucleic acid contamination, comprising the sprayer according to claim 9, wherein a first chamber is filled with solution A and a second chamber is filled with solution B, the solution A is a hydrogen peroxide solution with a mass content of 0.2-0.4%, the solution B is a mixed solution of metal ions and a buffer, the concentration of the metal ions in the mixed solution is 0.5-1.5mM, the concentration of the buffer is 3-5mM, and the pH value of the mixed solution is 7.0-8.0.