阅读说明：本技术 一种液体农药定量灌装设备 (Liquid pesticide quantitative filling equipment ) 是由 曾惠民 彭彩棋 关左生 于 2021-08-27 设计创作，主要内容包括：本发明涉及农药灌装技术领域,且公开了一种液体农药定量灌装设备,包括外壳,所述外壳的上表面设置有进药口,外壳的下表面设置有装药管,外壳内腔的中部活动安装有定量调节机构,外壳内腔左右两侧的底部设置有充氮保护机构,外壳下端的中部活动安装有密封机构。该一种液体农药定量灌装设备,通过设置定量调节机构,当外壳内的液体农药量持续增加时,浮球会在浮力的作用下向上移动,浮球向上移动的过程中会通过推动杆驱动封闭板实现对进药口的堵塞,同时,封堵活塞会在拉伸弹簧的作用下向上移动,封堵活塞向上移动会使得预设量的液体农药从装药管下落到药瓶中,从而达到了对液体农药进行定量灌装的效果。(The invention relates to the technical field of pesticide filling, and discloses liquid pesticide quantitative filling equipment which comprises a shell, wherein a pesticide inlet is formed in the upper surface of the shell, a pesticide filling pipe is arranged on the lower surface of the shell, a quantitative adjusting mechanism is movably arranged in the middle of an inner cavity of the shell, nitrogen filling protection mechanisms are arranged at the bottoms of the left side and the right side of the inner cavity of the shell, and a sealing mechanism is movably arranged in the middle of the lower end of the shell. This a liquid pesticide quantitative filling equipment, through setting up quantitative adjustment mechanism, when the liquid pesticide volume in the shell lasts the increase, the floater can rebound under the effect of buoyancy, the in-process of floater rebound can realize the jam to advancing the medicine mouth through catch bar drive closing plate, and simultaneously, the shutoff piston can rebound under extension spring's effect, during the shutoff piston rebound can make the liquid pesticide of predetermineeing the volume from the charge pipe fall to the medicine bottle, thereby reached and carried out quantitative filling's effect to liquid pesticide.)

1. The utility model provides a liquid pesticide quantitative filling equipment, includes shell (1), its characterized in that: the upper surface of shell (1) is provided with into medicine mouth (2), and the lower surface of shell (1) is provided with charge pipe (3), and the middle part movable mounting of shell (1) inner chamber has quantitative adjustment mechanism (4), and the bottom of shell (1) inner chamber left and right sides is provided with nitrogen charging protection mechanism (5), and the middle part movable mounting of shell (1) lower extreme has sealing mechanism (6).

2. The liquid pesticide quantitative filling apparatus according to claim 1, characterized in that: quantitative adjustment mechanism (4) are including ration passageway (401), the inside slidable mounting of ration passageway (401) has floater (402), the lower surface fixedly connected with extension spring (403) of floater (402), extension spring (403) lower extreme fixedly connected with shutoff piston (404), it dodges groove (405) to have seted up to advance the right side of medicine mouth (2) inner chamber, the inside slidable mounting who dodges groove (405) has closing plate (406), the surface rotation of closing plate (406) is connected with catch bar (407), ration passageway (401) are located the inside of shell (1) and the lower extreme is put through with charge pipe (3), shutoff piston (404) are located the top of charge pipe (3), the one end of catch bar (407) rotates with the surface of closing plate (406) to be connected, the other end of catch bar (407) rotates with the surface of floater (402) to be connected, the cross-sectional area of closing plate (406) and the cross-sectional area phase-up of advancing medicine mouth (2) inner chamber.

3. The liquid pesticide quantitative filling apparatus according to claim 1, characterized in that: fill nitrogen protection mechanism (5) including nitrogen gas chamber (501), the inside sliding connection of nitrogen gas chamber (501) has inflatable sliding block (502), lower extreme fixedly connected with gas tube (503) of nitrogen gas chamber (501), connecting rod (504) are installed in the inside rotation of gas tube (503), the one end that charging pipe (3) were kept away from in connecting rod (504) is provided with jam piece (505), the other end of connecting rod (504) is provided with drive block (507), spout (506) have been seted up to the top of gas tube (503), nitrogen gas chamber (501) are located the both sides of the inside lower extreme of shell (1), the one end and the nitrogen gas chamber (501) switch-on of gas tube (503), the other end and the inside switch-on of charging pipe (3) of gas tube (503), the direction of spout (506) is vertical downwards and is located the top of jam piece (505), drive block (507) are located the inside of charging pipe (3).

4. The liquid pesticide quantitative filling apparatus according to claim 1, characterized in that: the sealing mechanism (6) comprises a driving cavity (601), mounting blocks (602) are movably mounted inside the driving cavity (601), a support (603) is arranged between the two mounting blocks (602), a driving roller (604) and a driven roller (605) are movably mounted in the middle of the support (603), a sealing film (606) is arranged between the driving roller (604) and the driven roller (605), a buffer spring (607) is arranged between the upper end of the mounting block (602) and the cavity top of the inner cavity of the driving cavity (601), a driving wheel disc (608) is rotatably mounted on one side of the buffer spring (607), a driving power supply (609) is fixedly mounted inside the support (603), the mounting blocks (602) are symmetrically arranged on two sides of the lower end of the medicine charging pipe (3) in an equal number mode, two ends of the driving roller (604) are rotatably connected to the support (603), and the driven roller (605) and the driving roller (604) are parallel to each other.

5. The liquid pesticide quantitative filling apparatus according to claim 1, characterized in that: the drive cavity (601) is located below the inflation conduit (503).

Technical Field

The invention relates to the technical field of pesticide filling, in particular to quantitative liquid pesticide filling equipment.

Background

As a large country of agricultural production, the production amount of pesticides in China is very large, liquid pesticides are popular with people due to low production cost and good effect, but the chemical properties of the liquid pesticides are unstable and are easily influenced by environmental factors such as temperature, especially when the liquid pesticides are transported for a long distance, the liquid pesticides can shake violently in a bottle due to vehicle bumping, harmful gases are generated due to the fact that the pesticides are easy to deteriorate if the temperature is high, the generated gases can expand and grow the medicine bottle, and the pesticides in the bottle can be spilled, so that waste is caused, and even a series of safety problems are caused.

In the prior art, the quantitative filling of liquid pesticide is mostly realized through a plc control system, so that the efficiency of pesticide filling is improved, air in a medicine bottle is pumped out by using a vacuum pump after filling, so that chemical reaction between pesticide and the air in the bottle is avoided, and finally, the bottle mouth is sealed and packaged, the liquid pesticide is filled in the mode, although the quantitative filling and the deterioration of the liquid pesticide to a certain extent can be realized, the cost for quantitative filling by using the mode is high, and a user needs to know some plc professional knowledge, which is difficult to realize in a common processing field, and the sealing is performed after vacuumizing, a little air still enters the bottle, when the temperature is high in the transportation process or the shaking of a vehicle is severe, the liquid pesticide still reacts with the air in the bottle to generate gas, the generated gas can cause the pesticide bottle to expand and become bigger, which not only affects the beauty, but also sometimes even causes the sealing cover to fall off so as to cause the pesticide to spill.

Therefore, the invention provides a liquid pesticide quantitative filling device which is high in automation degree, can realize quantitative filling of liquid pesticide, automatically fills nitrogen into a medicine bottle in the filling process, immediately plugs the bottle mouth after filling, and can well solve the problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the liquid pesticide quantitative filling equipment which has the advantages of high automation degree, capability of realizing quantitative filling of liquid pesticide, automatic filling of nitrogen into a medicine bottle in the filling process, immediate sealing of the bottle opening after filling and the like, and solves the problems that the steps of quantitative filling of liquid pesticide are complex, the temperature is high or the liquid pesticide is oxidized and deteriorated to generate gas in long-distance transportation in the prior art.

(II) technical scheme

In order to realize the purposes that the quantitative filling of the liquid pesticide can be realized, the nitrogen is automatically filled into the medicine bottle in the filling process, and the bottle mouth is immediately plugged after the filling, the invention provides the following technical scheme: the utility model provides a liquid pesticide quantitative filling equipment, includes the shell, the upper surface of shell is provided with into medicine mouth, and the lower surface of shell is provided with the charge pipe, and the top movable mounting of charge pipe has quantitative adjustment mechanism, and the bottom of the shell inner chamber left and right sides is provided with fills nitrogen protection mechanism, and the middle part movable mounting of shell lower extreme has sealing mechanism.

Preferably, the quantitative adjusting mechanism comprises a quantitative channel, a floating ball is slidably mounted inside the quantitative channel, an extension spring is fixedly connected to the lower surface of the floating ball, a plugging piston is fixedly connected to the lower end of the extension spring, an avoiding groove is formed in the right side of an inner cavity of the pesticide inlet, a sealing plate is slidably mounted inside the avoiding groove, a push rod is rotatably connected to the surface of the sealing plate, the quantitative channel is located inside the shell, the lower end of the quantitative channel is communicated with the pesticide charging pipe, the plugging piston is located above the pesticide charging pipeline, one end of the push rod is rotatably connected to the surface of the edge sealing plate, the other end of the push rod is rotatably connected to the surface of the floating ball, the cross sectional area of the sealing plate is matched with the cross sectional area of the inner cavity of the pesticide inlet, the height of liquid pesticide inside the quantitative channel can rise along with the increase of the pesticide amount inside the shell, and when the liquid inside the quantitative channel reaches a certain amount, the floating ball can move upwards under the action of liquid buoyancy, the floater rebound can make the closing plate carry out the shutoff to advancing the medicine mouth gradually through the catch bar, when the floater rises to predetermineeing the height, advances the medicine mouth by the shutoff, in addition, the in-process that the floater rises can make shutoff piston rebound through extension spring, shutoff piston rebound to make a certain amount of liquid pesticide get into the charge pipe.

Preferably, the nitrogen filling protection mechanism comprises a nitrogen cavity, an inflation sliding block is connected inside the nitrogen cavity in a sliding manner, an inflation pipeline is fixedly connected at the lower end of the nitrogen cavity, a connecting rod is rotatably installed inside the inflation pipeline, a blocking block is arranged at one end, away from the charging pipe, of the connecting rod, a driving block is arranged at the other end of the connecting rod, a sliding chute is formed above the inflation pipeline, the nitrogen cavity is located on two sides of the lower end inside the shell, one end of the inflation pipeline is communicated with the nitrogen cavity, the other end of the inflation pipeline is communicated with the inside of the charging pipe, the guiding direction of the sliding chute is vertically downward and is located above the blocking block, the driving block is located inside the charging pipe, liquid pesticide can fall downwards under the action of gravity after entering the charging pipe, the pesticide can contact with the driving block in the falling process and enables the driving block to move downwards, the driving block can enable the blocking block to move upwards through the connecting rod when moving downwards, the blocking block moves upwards to enter the sliding groove, the air charging pipeline is connected, after the connection, nitrogen in the nitrogen cavity can enter the medicine filling pipe from the air charging pipeline under the action of the air recharging sliding block, and then the nitrogen and pesticide can enter the medicine bottle together.

Preferably, the sealing mechanism comprises a driving cavity, the inside of the driving cavity is movably provided with mounting blocks, a support is arranged between the two mounting blocks, a driving roller and a driven roller are movably mounted in the middle of the support, a sealing film is arranged between the driving roller and the driven roller, a buffer spring is arranged between the upper end of each mounting block and the cavity top of the inner cavity of the driving cavity, one side of the buffer spring is rotatably provided with a driving wheel disc, a driving power supply is fixedly mounted in the support, the mounting blocks are symmetrically arranged on two sides of the lower end of the pesticide charging pipe in an equal number manner, two ends of the driving roller are rotatably connected to the support, the driven roller is parallel to the driving roller, a round mark with the same size as the bottle mouth is engraved on the sealing film, after the equipment is electrified, when liquid pesticide falls in the middle of the support, the driving power supply is in a disconnected state, when no liquid pesticide falls in the middle of the support, drive power supply can automatic switch-on, can make the initiative cylinder rotatory with the drive rim plate after the drive power supply switch-on, the back is accomplished in the powder charge, the rotation of initiative cylinder aligns circular seal of a government organization in old china with the bottleneck, it is rotatory to drive the rim plate afterwards, the drive rim plate is rotatory and make installation piece downstream, installation piece downstream can make support downstream, thereby support downstream makes the circular seal of a government organization in old china part on the sealing film closely laminate with the medicine bottle bottleneck.

Preferably, the drive cavity is located gas filled tube's below, and when gas filled tube blockked up again as the inside jam piece of gas filled tube, the drive rim plate in the drive cavity began to rotate and made the support rebound, and the support can make sealing film and the laminating of medicine bottle bottleneck downwards to prevent that the nitrogen gas in the medicine bottle is excessive.

(III) advantageous effects

Compared with the prior art, the invention provides quantitative filling equipment for liquid pesticide, which has the following beneficial effects:

1. this liquid pesticide quantitative filling equipment, through setting up quantitative adjustment mechanism, when the liquid pesticide volume in the shell lasts the increase, the floater can be at the effect rebound under the buoyancy, the in-process of floater rebound can be realized the jam to advancing the medicine mouth through catch bar drive closing plate, and simultaneously, the shutoff piston can rebound under extension spring's effect, during the shutoff piston rebound can make the liquid pesticide of predetermineeing volume fall the medicine bottle from the charge pipe, thereby reached and carried out quantitative filling's effect to liquid pesticide.

2. This liquid pesticide quantitative filling equipment, through setting up nitrogen protection mechanism, can fall under the effect of gravity behind the liquid pesticide gets into the charge pipe, in-process pesticide can contact with the drive block and make the drive block downstream, the drive block downstream can make through the connecting rod and block up the piece rebound, block up in the piece rebound can get into the spout, the gas filled tube switch-on this moment, the inside nitrogen gas of nitrogen gas chamber can be followed gas filled tube from gas filled tube under the effect of recharge slider after the switch-on, nitrogen gas can get into the medicine bottle with the pesticide together afterwards, thereby reached and filled nitrogen gas to the medicine bottle inside when quantitative filling, prevent that liquid pesticide from oxidizing under special environment rotten and produce harmful gas's effect.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is an enlarged view of the structure at B in FIG. 1;

FIG. 4 is a schematic view showing the connection relationship between some parts according to the present invention;

FIG. 5 is a schematic view showing a mounting position of a sealing film;

fig. 6 is an enlarged view of the structure at C in fig. 3.

In the figure: 1. a housing; 2. a medicine inlet; 3. a medicine loading pipe; 4. a quantitative adjustment mechanism; 5. a nitrogen charging protection mechanism; 6. a sealing mechanism; 401. a dosing channel; 402. a floating ball; 403. an extension spring; 404. plugging the piston; 405. an avoidance groove; 406. a closing plate; 407. a push rod; 501. a nitrogen chamber; 502. an inflatable slider; 503. an inflation conduit; 504. a connecting rod; 505. a plugging block; 506. a chute; 507. a drive block; 601. a drive cavity; 602. mounting blocks; 603. a support; 604. a driving roller; 605. a driven drum; 606. sealing the film; 607. a buffer spring; 608. a drive wheel disc; 609. the power supply is driven.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

The first embodiment is as follows:

referring to fig. 1-6, a liquid pesticide quantitative filling apparatus comprises a housing 1, a pesticide inlet 2 is arranged on the upper surface of the housing 1, a pesticide charging pipe 3 is arranged on the lower surface of the housing 1, a quantitative adjusting mechanism 4 is movably arranged in the middle of the inner cavity of the housing 1, nitrogen-filled protection mechanisms 5 are arranged at the bottoms of the left side and the right side of the inner cavity of the housing 1, a sealing mechanism 6 is movably arranged in the middle of the lower end of the housing 1, the quantitative adjusting mechanism 4 comprises a quantitative channel 401, the quantitative channel 401 is positioned in the housing 1, the lower end of the quantitative channel 401 is communicated with the pesticide charging pipe 3, the height of liquid pesticide in the quantitative channel 401 rises along with the increase of the pesticide amount in the housing 1, a floating ball 402 is slidably arranged in the quantitative channel 401, an extension spring 403 is fixedly connected to the lower surface of the floating ball 402, a plugging piston 404 is fixedly connected to the lower end of the extension spring, the plugging piston 404 is positioned above the pesticide charging pipe 3, an avoiding groove 405 is formed in the right side of the inner cavity of the medicine inlet 2, a sealing plate 406 is slidably mounted inside the avoiding groove 405, a push rod 407 is rotatably connected to the surface of the sealing plate 406, one end of the push rod 407 is rotatably connected to the surface of the sealing plate 406, the other end of the push rod 407 is rotatably connected to the surface of the floating ball 402, the cross-sectional area of the sealing plate 406 is matched with the cross-sectional area of the inner cavity of the medicine inlet 2, when the liquid amount in the quantitative channel 401 reaches a certain amount, the floating ball 402 will move upwards under the action of the liquid buoyancy, the floating ball 402 moves upwards to gradually block the medicine inlet 2 by the blocking plate 406 through the pushing rod 407, when the floating ball 402 rises to a preset height, the medicine inlet 2 is blocked, in addition, when the floating ball 402 rises, the extension spring 403 causes the plugging piston 404 to move upwards, and the plugging piston 404 moves upwards so that a certain amount of liquid pesticide enters the pesticide filling pipe 3.

The working principle is as follows:

firstly, a plastic medicine bottle is placed right below the medicine filling pipe 3 through a conveying belt or manually, the bottle opening is located in the middle of the support 603, then the power supply is switched on, and liquid pesticide is injected into the shell 1 through the medicine inlet 2.

The pesticide liquid level in the quantitative channel 401 can rise along with the increase of the injection amount, after the pesticide in the quantitative channel 401 contacts with the floating ball 402, the floating ball 402 can move upwards under the effect of pesticide buoyancy, the sealing plate 406 can gradually extend out from the inside of the avoiding groove 405 through the push rod 407 in the upward movement process of the floating ball 402, when the pesticide amount reaches a preset value, the sealing plate 406 just completely extends out from the inside of the avoiding groove 405, the sealing plate 406 can block the pesticide inlet 2 after completely extending out, meanwhile, the blocking piston 404 can move upwards under the action of the tensile force of the tension spring 403, and when the blocking piston 404 moves upwards, the liquid pesticide in the shell 1 can enter the pesticide charging pipe 3 from the inside of the quantitative channel 401.

When the liquid pesticide in the shell 1 gradually decreases, the floating ball 402 moves downwards under the self gravity to reset, when the floating ball 402 moves downwards, the sealing plate 406 returns to the avoiding groove 405 through the push rod 407, and meanwhile, the sealing piston 404 resets under the action of the gravity and seals the lower end of the quantitative channel 401 again, so that the amount of the liquid pesticide entering the pesticide filling pipe 3 from the inner cavity of the shell 1 is constant, and the pesticide filling process is automatically carried out.

Example two: referring to fig. 1-6, a liquid pesticide quantitative filling device comprises a housing 1, the upper surface of the housing 1 is connected with a pesticide inlet 2, the lower surface of the housing 1 is connected with a pesticide charging pipe 3, a quantitative adjusting mechanism 4 is movably mounted above the pesticide charging pipe 3, nitrogen charging protection mechanisms 5 are movably mounted on two sides of the quantitative adjusting mechanism 4, a sealing mechanism 6 is movably mounted in the middle of the lower end of the housing 1, the nitrogen charging protection mechanisms 5 comprise nitrogen chambers 501, the nitrogen chambers 501 are located on two sides of the lower end inside the housing 1, an inflating slide block 502 is slidably connected inside the nitrogen chambers 501, an inflating pipeline 503 is fixedly connected to the lower end of the nitrogen chambers 501, one end of the inflating pipeline 503 is communicated with the nitrogen chambers 501, the other end of the inflating pipeline 503 is communicated with the inside of the pesticide charging pipe 3, a connecting rod 504 is rotatably mounted inside the inflating pipeline 503, and a blocking block 505 is arranged at one end of the connecting rod 504 far away from the pesticide charging pipe 3, the other end of the connecting rod 504 is provided with a driving block 507, the driving block 507 is positioned inside the charging tube 3, a chute 506 is arranged above the charging pipe 503, the guiding direction of the chute 506 is vertically downward and is positioned above the blocking block 505, the liquid pesticide can fall under the action of gravity after entering the charging tube 3, the pesticide can contact with the driving block 507 in the falling process and enables the driving block 507 to move downward, the driving block 507 can move upward through the connecting rod 504 when moving downward, the blocking block 505 can move upward and can enter the chute 506, at the moment, the charging pipe 503 is connected, after connection, nitrogen inside the nitrogen chamber 501 can enter the charging tube 3 from the charging pipe 503 under the action of the charging slider 502, then the nitrogen can enter a pesticide bottle together with the pesticide, the sealing mechanism 6 comprises a driving cavity 601, a mounting block 602 is movably mounted inside the driving cavity 601, a support 603 is arranged between the two mounting blocks 602, a driving roller 604 and a driven roller 605 are movably installed in the middle of a support 603, two ends of the driving roller 604 are rotatably connected to the support 603, the driven roller 605 and the driving roller 604 are parallel to each other, a sealing film 606 is arranged between the driving roller 604 and the driven roller 605, a buffer spring 607 is arranged between the upper end of an installation block 602 and the cavity top of the inner cavity of a driving cavity 601, a driving wheel disc 608 is rotatably installed on one side of the buffer spring 607, a driving power supply 609 is fixedly installed in the support 603, the installation blocks 602 are symmetrically arranged on two sides of the lower end of a pesticide charging pipe 3 in equal number, after the device is powered on, when liquid pesticide falls in the middle of the support 603, the driving power supply 609 is in a disconnected state, when no liquid pesticide falls in the middle of the support 603, the driving power 609 is automatically switched on, after the driving power supply 609 is switched on, the driving roller 604 and the driving wheel disc 608 are rotated, and a circular mark with the same size as the bottle mouth is engraved on the sealing film 606, in the initial state, the circular through hole formed by the last sealing is aligned with the mouth of the medicine bottle, after the medicine filling is completed, the driving roller 604 rotates to align the next circular mark on the sealing film 606 with the mouth of the medicine bottle, then the driving wheel disc 608 rotates, the driving wheel disc 608 rotates and enables the mounting block 602 to move downwards, the mounting block 602 moves downwards to enable the support 603 to move downwards, and the support 603 moves downwards to enable the circular mark on the sealing film 606 to be tightly attached to the mouth of the medicine bottle.

The working principle is as follows:

liquid pesticide can fall under the effect of gravity after getting into charge pipe 3, and the in-process that liquid pesticide dropped downwards can cause the extrusion to drive block 507, and drive block 507 receives downstream behind the pressure, can make jam piece 505 rebound through connecting rod 504 during drive block 507 rebound, and jam piece 505 rebound can enter into the inside of spout 506, and the effect of shutoff to gas filled pipeline 503 can be relieved after jam piece 505 gets into spout 506.

After gas filled tube 503 switches on, it can be along the inner wall lapse of nitrogen gas chamber 501 under the effect of self gravity to aerify slider 502, it can make the inside nitrogen gas of nitrogen gas chamber 501 enter into the inside of charge pipe 3 through gas filled tube 503 to aerify slider 502 in-process that moves down, the inside nitrogen gas of charge pipe 3 can enter into the medicine bottle along with liquid pesticide together, because nitrogen gas is inert gas, consequently, it can be located the top of liquid pesticide in the medicine bottle to enter into nitrogen gas behind the medicine bottle, thereby play the effect of a protection to liquid pesticide, avoid liquid pesticide to deteriorate because the temperature is high or the degree of jolting is big.

The nitrogen in the nitrogen gas chamber 501 enters the interior of the loading tube 3 through the inflation pipeline 503 under the action of the inflation slider 502, after the liquid pesticide enters the medicine bottle, the driving power supply 609 senses that no liquid falls in the bracket 603, at the moment, the driving power supply 609 is automatically switched on and enables the driving roller 604 to rotate, the driving roller 604 drives the driven roller 605 to rotate when rotating, the driven roller 605 enables the circular mark part on the sealing film 606 to be aligned with the mouth of the medicine bottle when rotating, and then the driving roller 604 stops rotating.

After the driving roller 604 stops rotating, the driving power source 609 enables the driving wheel disc 608 to rotate, the driving wheel disc 608 rotates to enable the mounting block 602 to move downwards, the sealing film 606 moves downwards when the mounting block 602 moves downwards, and the circle center mark part on the sealing film 606 presses the bottle opening of the medicine bottle when the sealing film 606 moves downwards, so that the sealing effect on the bottle opening is achieved.

After the sealed completion of bottleneck, installation piece 602 can rebound and reset under buffer spring 607's effect, at this moment, a circular passageway can appear on the sealing film 606, and circular passageway is located the below of charge pipe 3, thereby to the inside input nitrogen gas of medicine bottle when realizing quantitative filling liquid pesticide, and carry out quick seal to the bottleneck of medicine bottle after the filling, fill into nitrogen gas in the medicine bottle and can play the guard action to the liquid pesticide in the bottle, effectively prevent it rotten, flow out in the medicine bottle and cause unnecessary waste to the fast sealed nitrogen gas that can prevent in the medicine bottle of bottleneck.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.