CN218641507U

CN218641507U - Dropper device

Info

Publication number: CN218641507U
Application number: CN202223073599.0U
Authority: CN
Inventors: 李粤军
Original assignee: Clownfish Shanghai Industrial Co ltd
Current assignee: Clownfish Shanghai Industrial Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-17
Anticipated expiration: 2032-11-21

Abstract

The utility model discloses a burette device, including the detachable joint at the enclosing cover body of bottle bottleneck, the lid in the outer lid internal connection has, the internal top surface of inner cup is provided with the straw, the inner cup surface is provided with the air duct, the inside slip of outer lid is provided with pressure applying cover, pressure applying cover with be provided with elasticity between the interior lid and prop the piece, the inside fall way that is provided with of pressure applying cover, air duct upper portion is provided with the pump stopper, pump stopper and fall way inner wall in close contact with, fall way bottom inner wall is provided with the sealing ring for cooperate the pump stopper to make the inside conversion chamber that forms of fall way, the air duct outer wall runs through and is provided with the air guide hole, the air guide hole with the conversion chamber is linked together. The beneficial effects are that: the liquid can be sucked and extruded by pressing and releasing once, and the operation is simple and convenient; utilize elasticity to prop the piece and can realize the stable lift of fall way, the fall way stroke is stable unchangeable, and the absorption volume of liquid is stable unified.

Description

Dropper device

Technical Field

The utility model relates to a burette bottle technical field, concretely relates to burette device.

Background

The dropper bottle is mainly used for storing liquid, and is convenient for quick taking of the liquid in the dropper bottle. When the existing dropper bottle is used for taking liquid, the air bag at the upper end of the dropper is firstly squeezed to squeeze out gas in the straw, then the squeezing of the air bag is released, the liquid in the bottle body enters the straw by utilizing the negative pressure in the straw to finish the liquid suction, and when the liquid needs to be squeezed out, the air bag is squeezed again to squeeze out the liquid in the straw. When the liquid is taken, the air bag needs to be extruded and loosened for many times, so that the operation is inconvenient; meanwhile, the absorption amount of the liquid is different under the influence of extrusion force, so that stable and uniform absorption amount cannot be realized, and the use effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the above problems and provide a dropper device, which is described in detail below.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a dropper device, which comprises an outer cover body which is detachably clamped at the bottle mouth of a bottle body, wherein the inner cover body is connected inside the outer cover body, and a suction pipe is arranged on the top surface inside the inner cover body and extends into the bottle body; the surface of the inner cover body is provided with an air duct which is communicated with the suction pipe;

the inside slip of outer lid is provided with the gland, gland surface wear out outer lid surface, gland with be provided with elasticity between the interior lid and prop the piece for upwards prop the gland, inside the fall way that is provided with of gland, the air duct upper end is sealed and stretch into inside the fall way, air duct upper portion is provided with the pump stopper, pump stopper and the inner wall in close contact with of fall way, fall way bottom inner wall is provided with the sealing ring, sealing ring and air duct outside in close contact with for the inside conversion chamber that forms of cooperation pump stopper messenger fall way, the air duct outer wall runs through and is provided with the gas guide hole, the gas guide hole with the conversion chamber is linked together.

When the burette device is adopted, when the liquid in the bottle body needs to be taken out, the pressure applying cover is pressed down, the elastic force of the elastic supporting and jacking piece is overcome, the pressure applying cover drives the lifting pipe to descend, the volume of the conversion cavity is increased to generate negative pressure, the liquid in the bottle body is sucked into the straw by matching with the air guide hole, the pressure applying cover is kept pressed, the outer cover body is taken down from the bottle opening of the bottle body, the liquid is sucked, when the liquid needs to be extruded, the pressure applying cover is loosened, the pressure applying cover is lifted in the outer cover body under the action of the elastic supporting and jacking piece, the lifting pipe ascends along with the pressure applying cover, the volume of the conversion cavity is gradually reduced along with the ascending of the lifting pipe, and the liquid in the straw is extruded through the air guide hole, so that the liquid is convenient to use; by using the device, the liquid can be sucked and extruded by pressing and releasing once, and the operation is simple and convenient; utilize elasticity props the piece and can realize the stable lift of fall way, the fall way stroke is stable unchangeable, and the absorption volume of liquid is stable unified, excellent in use effect.

As preferred, elasticity props the apical organ for propping a top spring, outer cover surface runs through and is provided with the through-hole, it sets up to exert pressure lid slip inside the through-hole, the shaping of lid bottom of exerting pressure has solid fixed ring for will exert pressure and cover spacingly inside the through-hole, gu fixed ring bottom surface shaping has spacing apical ring, the spacing apical ring outside with prop a top spring inner wall contact, inner cover surface shaping has spacing bottom ring, spacing bottom ring inner wall with prop a top spring outside contact.

Preferably, the elastic clamping piece is arranged inside the outer cover body and used for clamping and fixing the outer cover body on the outer side of the bottle opening of the bottle body, and the driving piece is arranged on the bottom surface of the fixing ring and used for removing the clamping of the elastic clamping piece on the bottle opening along with the descending of the pressing cover, so that the outer cover body can be taken down conveniently.

As preferred, the bottleneck outside of bottle is provided with the joint recess, elasticity chucking spare includes snap ring, lid below including snap ring sets up, snap ring is oval structure and card income when initial inside the joint recess, snap ring length direction's side is provided with executes the clamp plate, the driving piece includes the actuating lever, the actuating lever is connected in the solid fixed ring outside, actuating lever bottom downwardly extending just is provided with the drive inclined plane, the drive inclined plane with execute the clamp plate contact for promote to execute the clamp plate along with the decline of actuating lever, make snap ring deformation and break away from completely with the joint recess.

As preferred, the internal bottom joint of enclosing cover has spacing base, spacing base is cyclic annular structure, spacing base surface is provided with props the apical ring, prop apical ring and snap ring butt, the outside that snap ring kept away from the board of exerting pressure is provided with the grafting piece, the internal cover body outside is provided with the slot, spacing base surface is provided with down the slot, the upper and lower extreme of grafting piece respectively with go up the slot with the slot cooperation of pegging graft down.

Preferably, the bottom surface of the fixing ring is provided with a guide rod, the guide rod and the driving rod are symmetrically distributed by taking the axis of the inner cover body as a reference, and the bottom end of the guide rod is abutted against the insertion block and is used for being matched with the upper slot and the lower slot to realize the fixation of the insertion block;

the inner wall of the outer cover body is provided with two limiting plates, the limiting plates extend along the axial direction of the outer cover body, and the two limiting plates are respectively contacted with two sides of the guide rod.

Preferably, the outer side of the inner cover body is provided with a plug-in groove along the axial direction, the inner wall of the outer cover body is provided with a plug-in plate along the axial direction, the plug-in plate is in plug-in fit with the plug-in groove, the cross sections of the plug-in plate and the plug-in groove are of inverted trapezoidal structures, and the plug-in grooves are provided with a plurality of plug-in grooves.

As preferred, outer lid bottom inner wall is provided with ring groove and spacing groove, the spacing groove extends and is linked together with ring groove along outer lid axial direction, the limiting base outside is provided with the joint bulge loop, the joint bulge loop with the ring groove joint, the joint bulge loop outside is provided with the stopper, the stopper with the cooperation of pegging graft of spacing groove.

Preferably, an avoiding groove is formed in the outer side of the inner cover body, the avoiding groove corresponds to the pressing plate, a baffle is arranged on the surface of the limiting base, the baffle corresponds to the pressing plate, and the baffle is close to the axis of the bottle body relative to the pressing plate.

Preferably, a sealing sleeve is inserted into the bottle mouth of the bottle body, a through hole is formed in the bottom of the sealing sleeve, the suction pipe is in clearance fit with the through hole, a limiting ring is arranged on the upper portion of the sealing sleeve, an annular groove is formed in the inner top surface of the inner cover, and a sealing ring is arranged inside the annular groove.

The beneficial effects are that: 1. the liquid can be sucked and extruded by pressing and releasing once, and the operation is simple and convenient;

2. the elastic supporting and jacking part can realize the stable lifting of the lifting pipe, the stroke of the lifting pipe is stable and unchanged, and the absorption amount of liquid is stable and uniform;

3. can guarantee the stability of being connected of outer lid and bottleneck through elasticity chucking spare, press the joint that gland cooperation driving piece can contact elasticity chucking spare and bottleneck of executing, open outer lid when carrying out the liquid absorption, further simplified operation, excellent in use effect.

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, 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, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is an exploded schematic view of the present invention;

fig. 3 is a schematic diagram of the internal structure of the present invention in a normal state;

fig. 4 is a schematic view of the opened internal structure of the present invention;

FIG. 5 is a schematic view of the structure of the pressing cover;

FIG. 6 is a schematic view of the construction of the bottle mouth;

FIG. 7 is a schematic view of the construction of the resilient retainer;

FIG. 8 is a perspective view of the inner cover;

FIG. 9 is a front cross-sectional view of the inner cap body;

FIG. 10 is a schematic structural view of the outer cover;

fig. 11 is a schematic structural view of the limiting base.

The reference numerals are illustrated below:

1. a bottle body; 101. clamping the groove; 2. an outer cover body; 201. a through hole; 202. a plugboard; 203. a limiting groove; 204. an annular clamp groove; 205. a limiting plate; 206. a limiting base; 207. clamping the convex ring; 208. a limiting block; 209. a lower slot; 210. supporting a top ring; 211. a baffle plate; 3. applying a pressure cover; 301. a limit top ring; 302. a fixing ring; 4. an elastic supporting member; 5. a straw; 6. sealing sleeves; 601. a limiting ring; 602. a through hole; 7. an elastic retainer; 701. an elastic snap ring; 702. pressing a plate; 703. an insertion block; 8. an inner cover body; 801. a limiting bottom ring; 802. an avoidance groove; 803. inserting grooves; 804. an upper slot; 805. an annular groove; 9. a drive member; 901. a drive rod; 902. a drive ramp; 903. a guide rod; 10. an air duct; 1001. an air vent; 11. a seal ring; 12. a pump plug; 13. a lifting pipe; 1301. a conversion chamber; 14. and (5) sealing rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-11, the utility model provides a dropper device, which comprises an outer cover body 2 detachably clamped at the bottle opening of a bottle body 1, an inner cover body 8 connected with the inner part of the outer cover body 2, a suction pipe 5 arranged on the inner top surface of the inner cover body 8, and the suction pipe 5 extending into the bottle body 1; the surface of the inner cover body 8 is provided with an air duct 10, and the air duct 10 is communicated with the suction pipe 5;

a pressing cover 3 is arranged in the outer cover body 2 in a sliding mode, the surface of the pressing cover 3 penetrates out of the surface of the outer cover body 2, an elastic supporting and jacking part 4 is arranged between the pressing cover 3 and the inner cover body 8 and used for supporting and jacking the pressing cover 3 upwards, a lifting pipe 13 is arranged in the pressing cover 3, the upper end of an air duct 10 is sealed and extends into the lifting pipe 13, a pump plug 12 is arranged at the upper part of the air duct 10, the pump plug 12 is in tight contact with the inner wall of the lifting pipe 13, a sealing ring 11 is arranged on the inner wall of the bottom of the lifting pipe 13 and is in tight contact with the outer side of the air duct 10 and used for being matched with the pump plug 12 to enable the lifting pipe 13 to form a conversion cavity 1301, an air guide hole 1001 is formed in the outer wall of the air duct 10 in a penetrating mode, and the air guide hole 1001 is communicated with the conversion cavity 1301; preferably, after the lifting pipe 13 rises to the highest position, the sealing ring 11 seals the air guide hole 1001, so that the straw 5 can be sealed, and the liquid storage effect in the bottle body 1 is ensured.

As an optional embodiment, the elastic supporting top part 4 is a supporting top spring, a through hole 201 is arranged on the surface of the outer cover body 2 in a penetrating manner, the pressing cover 3 is arranged in the through hole 201 in a sliding manner, a fixing ring 302 is formed at the bottom of the pressing cover 3 and used for limiting the pressing cover 3 in the through hole 201, a limiting top ring 301 is formed at the bottom surface of the fixing ring 302, the outer side of the limiting top ring 301 is in contact with the inner wall of the supporting top spring, a limiting bottom ring 801 is formed on the surface of the inner cover body 8, and the inner wall of the limiting bottom ring 801 is in contact with the outer side of the supporting top spring, so that the supporting top spring is limited through the limiting top ring 301 and the limiting bottom ring 801, and the pressing cover 3 is lifted in the outer cover body by the elasticity of the supporting top spring;

wherein, the outer side of the lifting pipe 13 is provided with a connecting ring which is clamped with the limit top ring 301.

Outer 2 inside elastic clamping piece 7 that are provided with of lid, be used for fixing the bottleneck outside at bottle 1 with outer 2 chucking of lid, gu fixed ring 302 bottom surface is provided with driving piece 9, be used for along with applying 3 decline to remove elastic clamping piece 7 and be convenient for realize taking off of outer lid 2 to the chucking of bottleneck, set up like this, press and apply the lid 3, when accomplishing the liquid absorption, solve the chucking of elastic clamping piece 7 to the bottleneck of bottle 1 through driving piece 9, be convenient for take out outer lid 2 from the bottleneck, can further the simplified operation, the convenience of operation is improved.

The outer side of the bottle mouth of the bottle body 1 is provided with a clamping groove 101, an elastic clamping piece 7 comprises an elastic clamping ring 701, the elastic clamping ring 701 is arranged below the inner cover body 8, the elastic clamping ring 701 is initially in an oval structure and clamped into the clamping groove 101, a pressing plate 702 is arranged on the side face of the elastic clamping ring 701 in the length direction, a driving piece 9 comprises a driving rod 901, the driving rod 901 is connected to the outer side of the fixing ring 302, the bottom end of the driving rod 901 extends downwards and is provided with a driving inclined surface 902, the driving inclined surface 902 is in contact with the pressing plate 702 and is used for pushing the pressing plate 702 along with descending of the driving rod 901 to enable the elastic clamping ring 701 to deform and be completely separated from the clamping groove 101, the outer sleeve body is clamped on the outer side of the bottle mouth of the bottle body 1, after the pressing of the pressing cover 3, the driving rod 901 descends along with the cover 3, the driving inclined surface pushes the elastic clamping ring 701 to deform into a round structure through the pressing plate 902 during descending of the driving rod 901, the elastic clamping ring 701 is completely separated from the clamping groove 101, clamping groove 701, clamping of the outer sleeve body is released, and the outer side of the outer sleeve body can be conveniently pulled out from the outer side of the bottle mouth; after the pressing cover 3 is loosened, liquid inside the suction pipe 5 is extruded out, taking and placing of the liquid are completed, the outer cover body 2 is pressed and sleeved on the outer side of the bottle mouth of the bottle body 1, in the pressing and sleeving process, the elastic clamping ring 701 is in contact with the bottle mouth, the elastic clamping ring 701 deforms, the outer cover body 2 is pressed and sleeved on the outer side of the bottle mouth conveniently, and after the elastic clamping ring 701 corresponds to the clamping groove, the elastic clamping ring 701 is restored to the original state and is clamped into the clamping groove 101 again.

Bottom joint has limit base 206 in outer lid 2, limit base 206 is the loop configuration, limit base 206 surface is provided with props apical ring 210, prop apical ring 210 and circlip 701 butt, circlip 701 keeps away from the outside of exerting pressure board 702 and is provided with plug block 703, the inner cup body 8 outside is provided with slot 804, limit base 206 surface is provided with slot 209 down, plug block 703 on, the lower extreme respectively with last slot 804 with slot 209 cooperation of pegging graft down, set up like this, can guarantee circlip 701 inside stability of lid 2 outside, it is inside to ensure that circlip 701 can accurate card income joint recess 101.

The bottom surface of the fixing ring 302 is provided with a guide rod 903, the guide rod 903 and the driving rod 901 are symmetrically distributed by taking the axis of the inner cover body 8 as a reference, the bottom end of the guide rod 903 is abutted against the insertion block 703 and is used for being matched with the upper insertion slot 804 and the lower insertion slot 209 to realize the fixation of the insertion block 703, and thus, in the descending process of the outer cover body 2, the guide rod 903 always limits the insertion block 703, the elastic clamping ring 701 is prevented from moving along the radial direction of the outer cover body, the driving inclined plane 902 is ensured to push the elastic clamping ring 701 to deform through the pressing plate 702, the elastic clamping ring 701 is ensured to be completely separated from the clamping groove 101, the clamping of the bottle mouth is contacted, and the outer cover body 2 is convenient to take down;

wherein, 2 inner walls of enclosing body are provided with limiting plate 205, and limiting plate 205 extends along 2 axial directions of enclosing body, and limiting plate 205 is total two and contact with guide bar 903 both sides respectively, sets up like this, carries on spacingly to guide bar 903 through limiting plate 205, ensures that actuating lever 901 and the accurate contact of exerting pressure board 702.

The outer side of the inner cover body 8 is provided with an inserting groove 803 along the axial direction, the inner wall of the outer cover body 2 is provided with an inserting plate 202 along the axial direction, the inserting plate 202 is matched with the inserting groove 803 in an inserting mode, the cross sections of the inserting plate 202 and the inserting groove 803 are of inverted trapezoidal structures, the inserting groove 803 is provided with a plurality of inserting grooves, the inner cover body 8 is convenient to disassemble and replace, and the inner cover body 8 is convenient to assemble and maintain and replace in a later period.

Outer 2 bottom inner walls of lid are provided with ring groove 204 and spacing groove 203, and spacing groove 203 extends and is linked together with ring groove 204 along outer 2 axial direction of lid, and the spacing base 206 outside is provided with joint bulge loop 207, joint bulge loop 207 and ring groove 204 joint, and the joint bulge loop 207 outside is provided with stopper 208, and stopper 208 and spacing groove 203 are pegged graft the cooperation, set up like this, can be with the bottom in outer lid 2 of spacing base 206 joint.

The outer side of the inner cover body 8 is provided with an avoiding groove 802, the avoiding groove 802 corresponds to the pressing plate 702, the surface of the limiting base 206 is provided with a baffle 211, the baffle 211 corresponds to the pressing plate 702, and the pressing plate 702 is close to the axis of the bottle body 1 relatively, so that the limiting base is arranged to limit the pressing plate 702 through the baffle 211, and the pressing plate 702 is prevented from pressing the elastic snap ring 701 to enable the elastic snap ring 701 to deform and transit so as to enter the clamping groove 101.

The sealing sleeve 6 is inserted into the bottle opening of the bottle body 1, the bottom of the sealing sleeve 6 is provided with a through hole 602, the suction pipe 5 is in clearance fit with the through hole 602, the upper part of the sealing sleeve 6 is provided with a limiting ring 601, the inner top surface of the inner cover body 8 is provided with an annular groove 805, and a sealing ring 14 is arranged inside the annular groove 805.

By adopting the structure, when the liquid in the bottle body 1 needs to be taken out, the pressing cover 3 is pressed downwards, the elasticity of the elastic supporting and jacking piece 4 is overcome, the pressing cover 3 drives the lifting pipe 13 to descend, the volume of the conversion cavity 1301 is increased along with the descending of the lifting pipe 13, negative pressure is generated, the liquid in the bottle body 1 is sucked into the suction pipe 5 by matching with the air guide hole 1001, the pressing cover 3 is kept pressed, the outer cover body 2 is taken down from the bottle mouth of the bottle body 1, the liquid is sucked, when the liquid needs to be squeezed out, the pressing cover 3 is loosened, the pressing cover 3 ascends in the outer cover body 2 under the action of the elastic supporting and jacking piece 4, the lifting pipe 13 ascends along with the pressing cover 3, the volume of the conversion cavity 1301 is gradually reduced along with the ascending of the lifting pipe 13, the liquid in the suction pipe 5 is squeezed out through the air guide hole 1001, and the liquid is convenient to use; by using the device, the liquid can be sucked and extruded by pressing and releasing once, and the operation is simple and convenient; utilize elasticity to prop top member 4 and can realize the stable lift of fall way 13, fall way 13 stroke is stable unchangeable, and the absorption volume of liquid is stable unified, excellent in use effect.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A burette device is characterized in that: the bottle comprises an outer cover body (2) which is detachably clamped at the bottle opening of a bottle body (1), wherein an inner cover body (8) is connected inside the outer cover body (2), a suction pipe (5) is arranged on the inner top surface of the inner cover body (8), and the suction pipe (5) extends into the bottle body (1); the surface of the inner cover body (8) is provided with an air duct (10), and the air duct (10) is communicated with the suction pipe (5);

outer lid (2) inside slip is provided with pressure applying cover (3), pressure applying cover (3) surface wears out outer lid (2) surface, pressure applying cover (3) with be provided with elasticity between interior lid (8) and prop a piece (4), be used for upwards propping pressure applying cover (3), pressure applying cover (3) inside is provided with fall way (13), air duct (10) upper end is sealed and stretch into inside fall way (13), air duct (10) upper portion is provided with pump stopper (12), pump stopper (12) and fall way (13) inner wall in close contact with, fall way (13) bottom inner wall is provided with sealing ring (11), sealing ring (11) and air duct (10) outside in close contact with for cooperation pump stopper (12) make inside conversion chamber (1301) that forms of fall way (13), air duct (10) outer wall runs through and is provided with air guide hole (1001), air guide hole (1001) with conversion chamber (1301) is linked together.

2. A dropper apparatus according to claim 1, wherein: elasticity props apical organ (4) for propping the apical spring, outer lid (2) surface runs through and is provided with through-hole (201), it sets up to execute gland (3) to slide through-hole (201) is inside, it has solid fixed ring (302) to execute gland (3) bottom shaping for it is spacing inside through-hole (201) to execute gland (3), gu fixed ring (302) bottom surface shaping has spacing apical ring (301), spacing apical ring (301) outside and the contact of propping the apical spring inner wall, interior lid (8) surface shaping has spacing end ring (801), spacing end ring (801) inner wall and the contact of propping the apical spring outside.

3. A dropper apparatus according to claim 2, wherein: the outer cover body (2) is internally provided with an elastic clamping piece (7) for clamping the outer cover body (2) outside the bottle mouth of the bottle body (1), and the bottom surface of the fixing ring (302) is provided with a driving piece (9) for releasing the clamping of the elastic clamping piece (7) on the bottle mouth along with the descending of the pressing cover (3) so as to conveniently take down the outer cover body (2).

4. A dropper apparatus according to claim 3, wherein: the bottle comprises a bottle body (1), and is characterized in that a clamping groove (101) is formed in the outer side of a bottle opening of the bottle body (1), the elastic clamping piece (7) comprises an elastic clamping ring (701), the elastic clamping ring (701) is arranged below an inner cover body (8), the elastic clamping ring (701) is in an oval structure initially and clamped into the clamping groove (101), a pressing plate (702) is arranged on the side face of the elastic clamping ring (701) in the length direction, the driving piece (9) comprises a driving rod (901), the driving rod (901) is connected to the outer side of the fixing ring (302), the bottom end of the driving rod (901) extends downwards and is provided with a driving inclined plane (902), and the driving inclined plane (902) is in contact with the pressing plate (702) and used for pushing the pressing plate (702) along with the descending of the driving rod (901) to enable the elastic clamping ring (701) to deform and be completely separated from the clamping groove (101).

5. The dropper device of claim 4, wherein: bottom joint has limiting base (206) in outer lid (2), limiting base (206) are the loop configuration, limiting base (206) surface is provided with props apical ring (210), prop apical ring (210) and circlip (701) butt, the outside that compresses tightly board (702) was kept away from in circlip (701) is provided with plug block (703), interior lid (8) outside is provided with slot (804), limiting base (206) surface is provided with down slot (209), plug block (703) upper and lower extreme respectively with go up slot (804) with slot (209) are pegged graft the cooperation down.

6. A dropper apparatus according to claim 5, wherein: the bottom surface of the fixing ring (302) is provided with a guide rod (903), the guide rod (903) and the driving rod (901) are symmetrically distributed by taking the axis of the inner cover body (8) as a reference, and the bottom end of the guide rod (903) is abutted against the insertion block (703) and is used for being matched with the upper insertion groove (804) and the lower insertion groove (209) to realize the fixation of the insertion block (703);

wherein, outer lid (2) inner wall is provided with limiting plate (205), limiting plate (205) extend along outer lid (2) axial direction, limiting plate (205) total two and respectively with guide bar (903) both sides contact.

7. A dropper apparatus according to claim 5, wherein: the outer side of the inner cover body (8) is provided with an inserting groove (803) along the axial direction, the inner wall of the outer cover body (2) is provided with an inserting plate (202) along the axial direction, the inserting plate (202) is inserted and matched with the inserting groove (803), the cross sections of the inserting plate (202) and the inserting groove (803) are of inverted trapezoidal structures, and a plurality of inserting grooves (803) are arranged.

8. A dropper apparatus according to claim 5, wherein: outer lid (2) bottom inner wall is provided with ring groove (204) and spacing groove (203), spacing groove (203) extend and are linked together with ring groove (204) along outer lid (2) axial direction, spacing base (206) outside is provided with joint bulge loop (207), joint bulge loop (207) with ring groove (204) joint, the joint bulge loop (207) outside is provided with stopper (208), stopper (208) with spacing groove (203) cooperation of pegging graft.

9. A dropper apparatus according to claim 5, wherein: interior lid (8) outside is provided with dodges groove (802), dodge groove (802) with it is corresponding to execute clamp plate (702), spacing base (206) surface is provided with baffle (211), baffle (211) with it is corresponding to execute clamp plate (702), and executes clamp plate (702) relatively and be close to the axis of bottle (1).

10. A dropper apparatus according to claim 1, wherein: the bottle comprises a bottle body (1) and is characterized in that a sealing sleeve (6) is inserted into the bottle opening of the bottle body (1), a through hole (602) is formed in the bottom of the sealing sleeve (6), a suction pipe (5) is in clearance fit with the through hole (602), a limiting ring (601) is arranged on the upper portion of the sealing sleeve (6), an annular groove (805) is formed in the inner top surface of an inner cover body (8), and a sealing ring (14) is arranged inside the annular groove (805).