A spray bottle capable of controlling drug dosage and a control method thereof

Abstract

The present invention discloses a spray bottle capable of controlling the dosage of medicine, comprising a bottle body, a spray head, and a pressure pump installed between the bottle body and the spray head, wherein the inlet of the pressure pump is connected with a liquid inlet pipe and extends into the bottle body, the outlet of the pressure pump is connected with a liquid outlet pipe, the spray head is provided with a nozzle, the nozzle is connected with the liquid outlet pipe, a medicine dosage adjustment device is provided at the spray head, a pull rod at the medicine dosage adjustment device can be freely raised and lowered in the vertical direction, thereby changing the top pressure of the bottom of the pull rod on the liquid outlet pipe, and changing the liquid outlet channel area of ​​the liquid outlet pipe by the top pressure, thereby realizing the adjustment of the liquid outlet amount, magnetizing a magnetic material piece by a magnet to make it magnetically absorb a snap connector, making the snap connector in a snap position state to form a snap connection with a snap block, and fixing the pull rod position to keep the top pressure of the bottom of the pull rod on the liquid outlet pipe. The present invention can adjust the dosage of medicine according to different patient conditions, and the adjustment method is simple and easy to operate.

Description

Technical Field

[0001] The utility model relates to a spray bottle, in particular to a spray bottle capable of controlling the dosage of medicine and a control method. Background Art

[0002] At present, rhinitis, an inflammation of the nasal mucosa, is caused by bacteria, viruses, allergens, etc. The incidence of rhinitis in my country has been as high as 37%, and it is increasing at a rate of 3% each year. Adolescents and children with rhinitis account for as much as 2 / 3 of the rhinitis population.

[0003] At present, the traditional nasal applicator for rhinitis spray drugs is designed with non-adjustable dosage. However, the age and disease progression of each rhinitis patient are different, and the traditional nasal applicator obviously cannot meet the needs of personalized drug delivery. The market is in urgent need of a new rhinitis spray bottle that can adjust the dosage.

[0004] The nasal spray bottle is packaged in spray packaging, and the pressure comes from the propellant spray or mechanical pump. Spray packaging belongs to pressure container packaging. There are two major methods: using propellant spray and using mechanical pump spray. Among them, in the method of using mechanical pump spray, when using it, pressing the valve switch can force the contents to be released in the required form such as mist, jet, powder, foam, etc., such as insecticide, perfume, hair spray, detergent, etc.

[0005] The traditional nasal spray bottle includes a bottle body, a nozzle, and a pressure pump installed between the bottle body and the nozzle. The inlet of the pressure pump is connected to a liquid inlet pipe and extends into the bottle body. The outlet of the pressure pump is connected to a liquid outlet pipe. A nozzle is provided on the nozzle, and the nozzle is connected to the liquid outlet pipe. When the nozzle is pressed, the nozzle generates pressure on the pressing part (working part) of the pressure pump, and the internal switch of the pressure pump is turned on, so that the liquid inlet pipe and the liquid outlet pipe of the pressure pump are connected to each other, and the liquid in the bottle passes through the liquid inlet pipe, the pressure pump, and the liquid outlet pipe, and then sprays out from the nozzle. However, the amount of liquid sprayed by the traditional nasal spray bottle is constant, and the dosage cannot be adjusted according to needs. Among them, the pressure pump can be a valve, and the valve is opened by pressing a button, so that the internal high pressure of the bottle body pushes the liquid in the bottle body into the liquid inlet pipe. Such as a spray bottle disclosed on December 11, 2013, or a new type of spray squeeze bottle disclosed on February 5, 2021. Summary of the invention

[0006] The purpose of the utility model is to solve the problems in the prior art and to provide a spray bottle and a control method capable of controlling the dosage of medication, which can adjust the dosage of medication according to different patient conditions, and the adjustment method is simple and easy to operate.

[0007] The utility model solves the technical problem by adopting the following technical solution: a spray bottle capable of controlling the dosage of medicine, comprising a bottle body, a spray head, and a pressure pump installed between the bottle body and the spray head, wherein the inlet of the pressure pump is connected to a liquid inlet pipe and extends into the bottle body, the outlet of the pressure pump is connected to a liquid outlet pipe, a nozzle is arranged on the spray head, and the nozzle is connected to the liquid outlet pipe, and the utility model is characterized in that a medicine dosage regulating device is arranged at the spray head, and the medicine dosage regulating device comprises: a pull rod switch movably installed on the spray head; a mounting hole is provided on the surface of the spray head, and a mounting channel is provided in the spray head, which extends from the mounting hole to the liquid outlet pipe of the pressure pump; a pull rod which passes through the mounting hole and the mounting channel in sequence and extends to the position of the liquid outlet pipe, the pull rod is a hollow tube, one end of the pull rod is fixedly connected to the pull rod switch, and the other end extends to the liquid storage pipe to form a movable end, and the movable end is formed at the bottom of the pull rod. A telescopic unit for pressing the liquid storage tube is installed at the end; a limiting hole is provided on the peripheral wall of the pull rod, and a connector is hinged at the limiting hole. The connector rotates around the hinge axis and has a retreat state of rotating into the limiting hole, and a clamping state of rotating to the outside of the limiting hole and forming an abutment and blocking state with a clamping block arranged on the periphery of the installation channel. At least two clamping blocks are arranged from top to bottom on the periphery of the installation channel, and the connector is provided with a magnetic block that can be attracted by magnetic force; a magnetic material piece is arranged above each clamping block, which attracts the magnetic block by magnetic force to drive the connector to rotate around the hinge axis, one end of the magnetic material piece is located in the installation channel and close to the peripheral wall of the pull rod, and the other end extends outward to the outer surface of the nozzle; a magnet is used to touch the magnetic material piece located at one end of the outer surface of the nozzle to magnetize the magnetic material piece; the magnetic material piece is made of soft iron.

[0008] It is further configured that: a rotation limiting structure for limiting the rotation of the connector toward the outside of the limiting hole is provided between the connector and the limiting hole, and the rotation limiting structure is a rotation limiting protrusion convexly provided at the limiting hole, which is used to abut against the surface of the connector to limit the rotation angle of the connector. By providing the rotation limiting protrusion, the rotation angle of the connector can be controlled so that it can remain stable in the locked state, and the connector is prevented from rotating beyond a controllable angle, thereby failing to achieve the locking effect.

[0009] It is further configured that: the telescopic unit is a compression spring, one end of which is fixed to the movable end of the pull rod, and the other end is arranged toward the liquid outlet pipe and is used to press the surface of the liquid outlet pipe. The compression spring enables the bottom of the pull rod to always apply a pressing force to the liquid outlet pipe, thereby adjusting the liquid discharge of the liquid outlet pipe according to the magnitude of the force applied by the pull rod.

[0010] It is further configured that: a blocking piece is provided at the lower part of the telescopic unit to block the installation channel, and the bottom of the compression spring presses the blocking piece to drive the blocking piece to press the liquid outlet pipe downward.

[0011] It is further configured as follows: there are three clamping blocks on the periphery of the installation channel, and a magnetic material piece is correspondingly arranged above each clamping block.

[0012] It is further configured as follows: the clamping member includes a left clamping block arranged on the left periphery of the installation channel and a right clamping block arranged on the right periphery of the installation channel, and the left clamping block corresponds to the right clamping position; the magnetic material member includes a left magnetic material member located above the left clamping block and a right magnetic material member located above the clamping block, one end of the right magnetic material member is located in the installation channel and is arranged close to the right peripheral wall of the pull rod, and the other end extends outward to the outer surface of the nozzle, one end of the left magnetic material member is located in the installation channel and is arranged close to the left peripheral wall of the pull rod, and the other end is arranged in the inner wall of the nozzle, and is connected to the right magnetic material member after extending in the inner wall of the nozzle. Through the above configuration, a magnetic material member only needs to set one contact point on the outer surface of the nozzle to realize the magnetic attraction of the left and right side clamps, so that the clamp is in a clamping state, making it easier for users to operate.

[0013] Further, the outer surface of the nozzle is provided with a magnet placement area, which is correspondingly arranged at the end where the magnetic material piece extends to the outer surface of the nozzle. By providing the magnet placement area, the user can be conveniently guided to place the magnet at the magnetic material piece that he wants to contact.

[0014] It is further configured that: a magnet receiving groove for receiving and placing the magnet is provided on the outer surface of the nozzle, and a magnetic part is provided at the bottom of the magnet receiving groove, and the magnetic part is used to fix the magnet in the receiving groove when the magnet is placed in the magnet receiving groove. By placing the magnet receiving groove, the magnet can be conveniently stored when it is not needed, and the magnetic part can be mutually attracted with the magnet to prevent the magnet from falling.

[0015] It is further configured that: a pull rod reset spring for driving the pull rod to move downward is also provided in the installation channel, the pull rod reset spring is sleeved on the pull rod, one end of the pull rod reset spring is fixedly connected to the inner wall of the installation channel, and the other end is fixedly connected to the surface of the pull rod. Through the pull rod reset spring, the pull rod always has a downward tendency, ensuring the stability of the connector when it is in a locked state, avoiding accidental upward movement of the pull rod due to accidental vibration, thereby pulling the connector to release the locked position.

[0016] The present invention also discloses a control method for a spray bottle capable of controlling the dosage of medicine, which is characterized in that it includes lifting the pull rod upward by pulling a pull rod switch, so that the connector in the limit hole on the peripheral wall of the pull rod is close to the mounting hole and exceeds the uppermost connector block in the mounting channel; selecting a magnetic material piece of a mounting channel, and allowing a magnet to touch the magnetic material piece and extend to one end of the outer surface of the spray head so that the magnetic material piece is magnetized to generate magnetic force; moving the pull rod downward, and when passing through the magnetic material piece generating magnetic force, the magnetic block on the connector is attracted by the magnetic force of the magnetic material piece. The connector rotates around the hinge axis and rotates from the limiting hole to the outside of the limiting hole and forms an abutment with the corresponding connector block below the magnetic material piece, so as to realize the change from the retreated state to the engaged state, so that the pull rod is fixed and cannot fall back, thereby stabilizing the top pressure of the pull rod on the liquid outlet pipe; wherein by selecting magnetic material pieces at different positions for magnetization to generate magnetic force, the pull rod can be fixed at different positions, thereby changing the top pressure of the pull rod on the liquid outlet pipe, and changing the top pressure to change the liquid outlet channel area of ​​the liquid outlet pipe, thereby realizing the adjustment of the liquid outlet volume.

[0017] The beneficial effects of the utility model are:

[0018] The connector on the pull rod is in a retreated state inside the limit hole, and the pull rod can be freely lifted and moved in the vertical direction, thereby changing the top pressure of the bottom of the pull rod on the liquid outlet pipe, and changing the liquid outlet channel area of ​​the liquid outlet pipe by the top pressure, thereby realizing the adjustment of the liquid outlet volume; select a magnetic material piece for an installation channel, and let the magnet touch the magnetic material piece and extend it to one end of the outer surface of the nozzle to magnetize the magnetic material piece to generate magnetic force; move the pull rod downward, and when passing through the magnetic material piece that generates magnetic force, the magnetic block on the connector is attracted by the magnetic force of the magnetic material piece, and the connector rotates around the hinge axis and changes to a clamping state, so that the pull rod is fixed and cannot fall back downward, thereby stabilizing the top pressure of the pull rod on the liquid outlet pipe; by selecting magnetic material pieces at different positions for magnetization to generate magnetic force, the pull rod can be fixed at different positions, thereby changing the top pressure of the pull rod on the liquid outlet pipe, and changing the liquid outlet channel area of ​​the liquid outlet pipe by changing the top pressure, thereby realizing the adjustment of the liquid outlet volume. When using the spray bottle, the user can control and adjust the amount of medicine by contacting the magnet with magnetic material pieces at different positions. The adjustment method is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the spray head and the upper part of the bottle body of the utility model, omitting the internal structure of the dosage adjustment device

[0021] Figure 3 This is a schematic diagram of the structure of the dosage adjustment device of the utility model embodiment;

[0022] Figure 4 for Figure 3 A magnified view of part A;

[0023] Figure 5 for Figure 3 The cross-sectional diagram after cutting along the transverse direction shows the structure of the magnetic material piece.

[0024] In the figure, 1 is a bottle body, 11 is a pressure pump, 12 is a liquid outlet pipe, 13 is a blocking member, 2 is a nozzle, 21 is a dosage adjustment device, 211 is a pull rod switch, 212 is a pull rod, 2121 is a telescopic unit, 2122 is a limiting hole, 2123 is a connector, 2124 is a hinge shaft, 2125 is a limiting protrusion, 213 is a mounting hole, 214 is a mounting channel, 2141 is a right clamping block, 2142 is a left clamping block, 215 is a pull rod reset spring, 216 is a right magnetic material part, 217 is a left magnetic material part, 22 is a nozzle, 23 is a magnet storage groove, and 24 is a magnet placement area. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1 , 2As shown in Figures 3 and 4, the spray bottle with controllable dosage of the present embodiment comprises a bottle body 1, a spray head 2, and a pressure pump 11 installed between the bottle body 1 and the spray head 2. The inlet of the pressure pump 11 is connected with a liquid inlet pipe and extends into the bottle body 1. The outlet of the pressure pump 11 is connected with a liquid outlet pipe 12. The spray head 2 is provided with a nozzle 22, which is connected to the liquid outlet pipe 12. The bottom of the spray head 2 forms a corresponding relationship with the pressing part of the pressure pump 11. When the spray head 2 is pressed downward, the bottom of the spray head 2 presses the pressing part of the pressure pump 11, so that the internal opening of the pressure pump 11 is opened, so that the liquid in the bottle body 1 passes through the liquid inlet pipe, the pressure pump 11, the liquid outlet pipe 12 and the nozzle 22, and finally sprays out from the nozzle 22. The spray head 2 is provided with a dosage regulating device 21, which includes a pull rod switch 211 movably mounted on the spray head 2; a mounting hole 213 is provided on the surface of the spray head 2, and a mounting channel 214 is provided in the spray head 2 from the mounting hole 213 to the outlet pipe 12 of the pressure pump 11; a pull rod 212 is inserted in the mounting hole 213 and extends along the mounting channel 214 to the outlet pipe 12, and the pull rod 212 is a hollow tube, and one end of the pull rod 212 is connected to the pull rod switch 211. The movable end is fixedly connected and the other end extends to the liquid storage tube to form a movable end. The movable end is equipped with a telescopic unit 2121 for pressing the liquid storage tube. The telescopic unit 2121 is a compression spring. One end of the compression spring is fixed to the movable end of the pull rod 212, and the other end is arranged toward the liquid outlet tube 12 and is used to press the surface of the liquid outlet tube 12. By changing the upward or downward position of the pull rod 212, the pressure of the compression spring on the liquid outlet tube 12 is changed at the same time. After the liquid is compressed, the cross-sectional size of the liquid changes, thereby changing the liquid output. The lower part of the telescopic unit 2121 is provided with a plugging member 13 that blocks the installation channel 214. The bottom of the compression spring presses the plugging member 13 to drive the plugging member 13 to press the liquid outlet tube 12 downward.

[0027] A limiting hole 2122 is provided on the peripheral wall of the pull rod 212, and a limiting hole 2122 is provided on both sides of the pull rod 212. A triangular-structured connector 2123 is hinged at the limiting hole 2122, and the connector 2123 rotates around the hinge shaft 2124, and has a retreat state of rotating into the limiting hole 2122, and a blocking state of rotating to the outside of the limiting hole 2122 and abutting against the connector block provided on the periphery of the installation channel 214 (the position of the black triangle block in the figure is the blocking state, and the position of the white triangle block is the retreat state). The connector 2123 is provided with a magnetic block that can be attracted by magnetic force, wherein the connector 2123 can be set as a magnetic block as a whole, or the magnetic block can be set at the corner of the connector 2123 farthest from the hinge shaft 2124, so as to facilitate the magnetic attraction of the magnetized magnetic material.

[0028] Three clamping blocks are arranged from top to bottom at the periphery of the installation channel 214. A magnetic material piece is arranged above each clamping block, which attracts the magnetic block by magnetic force to drive the clamping device 2123 to rotate around the hinge shaft 2124. One end of the magnetic material piece is located in the installation channel 214 and is arranged near the peripheral wall of the pull rod 212, and the other end extends outward to the outer surface of the nozzle 2; a magnet is used to touch the magnetic material piece at one end of the outer surface of the nozzle 2 to magnetize the magnetic material piece. The magnetic material piece is magnetized by touching the magnet, and then the magnetic block on the clamping device 2123 passing through the magnetic material piece is magnetically attracted, so that the clamping device rotates around the hinge shaft 2124 and is in a clamping state, and is connected to the clamping block below the magnetic material piece to form a clamping connection.

[0029] In addition, a rod return spring 215 for driving the rod 212 to move downward is also provided in the installation channel 214. The rod return spring 215 is sleeved on the rod 212, and one end of the rod return spring 215 is fixedly connected to the inner wall of the installation channel 214, and the other end is fixedly connected to the surface of the rod 212. Through the rod return spring 215, the rod 212 always has a downward trend, ensuring the stability of the connector 2123 when it is in a locked state, and avoiding accidental upward movement of the rod 212 due to accidental vibration, thereby pulling the connector 2123 to release the lock. The rod 212 can be made of plastic material or a hard metal rod.

[0030] In addition, a rotation limiting structure for limiting the rotation angle of the connector 2123 is provided between the connector 2123 and the limiting hole 2122. The rotation limiting structure is a rotation limiting protrusion 2125 convexly provided at the limiting hole 2122 and used to abut against the surface of the connector 2123 to limit the rotation angle of the connector 2123. A torsion spring can also be provided on the structure for the connector 2123 to rotate around the hinge shaft 2124, and the torsion spring can keep the connector 2123 in a retreated state when it is not attracted by magnetic force.

[0031] In addition, the clamping member includes a left clamping block 2142 arranged on the left peripheral edge of the installation channel 214 and a right clamping block 2141 arranged on the right peripheral edge of the installation channel 214, and the positions of the left clamping block 2142 and the right clamping block 2141 correspond to each other; the magnetic material member includes a left magnetic material member 217 located above the left clamping block 2142 and a right magnetic material member 216 located above the left clamping block, one end of the right magnetic material member 216 is located in the installation channel 214 and is arranged close to the right peripheral wall of the pull rod 212, and the other end extends outward to the outer surface of the nozzle 2, and the left magnetic material member 217 is located above the left clamping block 2142. One end is located in the installation channel 214 and is arranged near the left peripheral wall of the pull rod 212, and the other end is arranged in the inner wall of the nozzle 2 and connected to the right magnetic material part 216 after extending in the inner wall of the nozzle 2. Specifically, the left magnetic material part 217 is located at one end of the inner wall of the nozzle 2, and is connected to the right magnetic material part 216 located on the inner wall of the nozzle 2 after winding in the inner wall of the nozzle 2, so that when the magnet is located at the end of the right magnetic material part 216 located on the outer surface of the nozzle 2, the left magnetic material part 217 and the right magnetic material part 216 are magnetized and magnetically attract the left and right connectors 2123 respectively. The magnet on the outer surface of the nozzle 2 touches a point to achieve magnetic attraction of the left and right connectors 2123.

[0032] In order to facilitate the user to place the magnet on the magnetic material piece that they want to contact, a magnet placement area 24 is provided on the outer surface of the nozzle 2. The magnet placement area 24 is correspondingly arranged at one end of the magnetic material piece extending to the outer surface of the nozzle 2.

[0033] In order to facilitate the storage of the magnet when it is not needed, and at the same time, the magnetic part can be attracted to the magnet to prevent the magnet from falling, a magnet receiving groove 23 for receiving the magnet is provided on the outer surface of the nozzle 2, and a magnetic part is provided at the bottom of the magnet receiving groove 23. The magnetic part is used to fix the magnet in the receiving groove when the magnet is placed in the magnet receiving groove 23.

[0034] The operation method of the spray bottle capable of controlling the dosage of the drug in this embodiment is as follows:

[0035] The user pulls the pull rod switch 211 to lift the pull rod 212 upward, so that the connector 2123 in the limit hole 2122 on the peripheral wall of the pull rod 212 is close to the mounting hole 213 and exceeds the uppermost connector block in the mounting channel 214;

[0036] Then the user selects a magnetic material piece for the installation channel 214, and places a magnet on the magnetic material piece extending to one end of the outer surface of the nozzle 2 to magnetize the magnetic material piece and generate magnetic force;

[0037] Then, the pull rod 212 is moved downward. When passing through the magnetic material part that generates magnetic force, the magnetic block on the connector 2123 is attracted by the magnetic force of the magnetic material part. The connector 2123 rotates around the hinge shaft 2124 and rotates from the inside of the limiting hole 2122 to the outside of the limiting hole 2122 and abuts against the corresponding connector block below the magnetic material part, thereby changing from the retreated state to the engaged state, so that the pull rod 212 is fixed and cannot fall back downward, thereby stabilizing the top pressure of the pull rod 212 on the liquid outlet pipe 12;

[0038] By selecting magnetic material pieces at different positions for magnetization to generate magnetic force, the pull rod 212 can be fixed at different positions, thereby changing the top pressure of the pull rod 212 on the liquid outlet pipe 12, and changing the liquid outlet channel area of ​​the liquid outlet pipe 12 by changing the top pressure, thereby achieving adjustment of the liquid outlet volume.

[0039] The magnetic part, magnetic material part and magnetic block can be made of iron. The magnetic material part can be a strip rod made of iron. Soft iron can also be used to avoid retaining magnetism after the magnet is removed, and avoid accidentally sucking the magnetic part on the connector 2123.

[0040] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A spray bottle capable of controlling the dosage of medicine, comprising a bottle body, a spray head, and a pressure pump installed between the bottle body and the spray head, wherein the inlet of the pressure pump is connected to a liquid inlet pipe extending into the bottle body, the outlet of the pressure pump is connected to a liquid outlet pipe, the spray head is provided with a nozzle, and the nozzle is connected to the liquid outlet pipe, characterized in that: The spray head is provided with a dosage regulating device, which comprises: A pull-rod switch movably mounted on the nozzle; A mounting hole is provided on the surface of the nozzle, and a mounting channel is provided inside the nozzle, extending from the mounting hole to the outlet pipe of the pressure pump; A pull rod passes through the mounting hole and the mounting channel in sequence and extends to the position of the liquid outlet pipe. The pull rod is a hollow tube. One end of the pull rod is fixedly connected to the pull rod switch, and the other end extends to the liquid storage pipe to form a movable end. A telescopic unit for pressing the liquid storage pipe is installed at the movable end. A limit hole is provided at the peripheral wall of the pull rod, and a connector is hinged at the limit hole. The connector rotates around the hinge axis and has a retreat state in which the connector rotates into the limit hole, and a clamping state in which the connector rotates to the outside of the limit hole and forms an abutment block with a clamping block provided at the peripheral edge of the installation channel. At least two clamping blocks are provided at the peripheral edge of the installation channel from top to bottom, and a magnetic block that can be attracted by magnetic force is provided on the connector; A magnetic material piece is arranged above each clamping block, which attracts the magnetic block by magnetic force to drive the clamping device to rotate around the hinge axis. One end of the magnetic material piece is located in the installation channel and is arranged close to the peripheral wall of the pull rod, and the other end extends outward to the outer surface of the nozzle; A magnet used to touch the magnetic material piece at one end of the outer surface of the nozzle to magnetize the magnetic material piece; The magnetic material piece is made of soft iron.

2. A spray bottle capable of controlling the dosage of medicine according to claim 1, characterized in that: A rotation limiting structure is provided between the connector and the limiting hole for limiting the connector from rotating outward from the limiting hole. The rotation limiting structure is a rotation limiting protrusion convexly provided at the limiting hole for abutting against the connector surface to limit the rotation angle of the connector.

3. A spray bottle capable of controlling the dosage of medicine according to claim 1, characterized in that: The telescopic unit is a compression spring, one end of which is fixed to the movable end of the pull rod, and the other end of which is arranged toward the liquid outlet pipe and is used to press the surface of the liquid outlet pipe.

4. A spray bottle capable of controlling the dosage of medicine according to claim 3, characterized in that: A blocking piece for blocking the installation channel is provided at the lower part of the telescopic unit, and the bottom of the compression spring presses the blocking piece to drive the blocking piece to press the liquid outlet pipe downward.

5. The spray bottle with controllable dosage according to claim 1, characterized in that: There are three clamping blocks on the periphery of the installation channel, and a magnetic material piece is correspondingly arranged above each clamping block.

6. A spray bottle capable of controlling the dosage of medicine according to claim 1 or 5, characterized in that: The clamping member includes a left clamping block arranged at the left periphery of the installation channel and a right clamping block arranged at the right periphery of the installation channel, and the left clamping block corresponds to the right clamping position; The magnetic material piece includes a left magnetic material piece located above the left clamping block and a right magnetic material piece located above the clamping block, one end of the right magnetic material piece is located in the installation channel and is arranged close to the right side wall of the pull rod, and the other end extends outward to the outer surface of the nozzle, one end of the left magnetic material piece is located in the installation channel and is arranged close to the left side wall of the pull rod, and the other end is arranged in the inner wall of the nozzle, and is connected to the right magnetic material piece after extending in the inner wall of the nozzle.

7. The spray bottle capable of controlling the dosage of medicine according to claim 1, characterized in that: The outer surface of the nozzle is provided with a magnet placement area, and the magnet placement area is arranged correspondingly to the end where the magnetic material part extends to the outer surface of the nozzle.

8. The spray bottle capable of controlling the dosage of medicine according to claim 1, characterized in that: The outer surface of the nozzle is provided with a magnet receiving groove for receiving and placing the magnet, and the bottom of the magnet receiving groove is provided with a magnetic part, which is used to fix the magnet in the receiving groove when the magnet is placed in the magnet receiving groove.

9. The spray bottle capable of controlling the dosage of medicine according to claim 1, characterized in that: The installation channel is also provided with a pull rod reset spring for driving the pull rod to move downward. The pull rod reset spring is sleeved on the pull rod, one end of the pull rod reset spring is fixedly connected to the inner wall of the installation channel, and the other end is fixedly connected to the surface of the pull rod.

10. A method for controlling a spray bottle capable of controlling the dosage of a drug, using the spray bottle according to any one of claims 1 to 9, characterized in that: include: The pull rod is lifted upward by pulling the pull rod switch, so that the connector in the limit hole on the peripheral wall of the pull rod is close to the mounting hole and exceeds the uppermost connector block in the mounting channel; Select a magnetic material piece for a mounting channel, and place a magnet touching the magnetic material piece and extending to one end of the outer surface of the nozzle to magnetize the magnetic material piece to generate magnetic force; The pull rod is moved downward. When passing through the magnetic material piece that generates magnetic force, the magnetic block on the connector is attracted by the magnetic force of the magnetic material piece. The connector rotates around the hinge axis and rotates from the limiting hole to the outside of the limiting hole and forms abutment with the corresponding connector block below the magnetic material piece, thereby realizing the change from the retreated state to the engaged state, so that the pull rod is fixed and cannot fall back downward, thereby stabilizing the top pressure of the pull rod on the liquid outlet pipe; By selecting magnetic material pieces at different positions for magnetization to generate magnetic force, the pull rod can be fixed at different positions, thereby changing the top pressure of the pull rod on the liquid outlet pipe, and changing the liquid outlet channel area of ​​the liquid outlet pipe by changing the top pressure, thereby achieving adjustment of the liquid outlet volume.

Images