Squeezing type toothpaste bottle

Abstract

The squeezing type toothpaste bottle comprises a bottle body, a mounting cover, a pressing piece, a first elastic piece, a plugging piece and a first piston, and the air pressure change of an air pressure cavity is transmitted through the first piston to drive toothpaste to flow; the sliding piece and the plugging piece control extrusion and sealing of toothpaste through mechanical linkage; and the first elastic piece and the second elastic piece respectively ensure the resetting of the pressing piece and the sliding piece, so that the system is recovered to the initial state after being pressed each time. The first piston transmits the air pressure change of the air pressure cavity to drive the toothpaste to flow, toothpaste extrusion and sealing are controlled through mechanical linkage of the sliding piece and the blocking piece, toothpaste remaining in the spray head is effectively reduced, and precise amount control is achieved; and the movably sealed plugging piece effectively isolates air, so that the toothpaste is prevented from oxidative deterioration, and the shelf life of the toothpaste is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of pressing bottles, and in particular to an extrusion type toothpaste bottle. Background Art

[0002] Currently, pressing pumps are widely used in different liquid bottles, and the emulsion in the bottle can be output by pressing the nozzle assembly. However, in the actual use process, after the emulsion is output, part of the emulsion remains in the nozzle assembly. Part of the emulsion is likely to drip, and part of the emulsion is likely to come into contact with external air, dust or other foreign objects, resulting in the pollution of the emulsion output again.

[0003] For this reason, some pressing pumps in the prior art are provided with a function of driving the emulsion to suck back. Through the air pressure cooperation between the internal structure of the pressing pump and the telescopic process of the nozzle assembly, the emulsion remaining in the nozzle assembly is sucked back. However, the internal structures of these pressing pumps are very complex, with high requirements for production and assembly, and the sucking-back effect is average.

[0004] Especially for extrusion type toothpaste bottles, due to the poor fluidity of toothpaste itself and relatively easy coagulation, when toothpaste remains in the nozzle and is not used for a period of time, the toothpaste will coagulate in the nozzle, making it impossible to squeeze out toothpaste anymore. Summary of the Invention

[0005] The purpose of this application is to provide an extrusion type toothpaste bottle to solve the problem of toothpaste remaining in the nozzle.

[0006] An extrusion type toothpaste bottle provided by this application adopts the following technical solutions: It includes a bottle body provided with a storage area for storing toothpaste; a mounting cap detachably connected to the top of the bottle body, and the mounting cap is provided with a pneumatic chamber that can communicate with the storage area; a pressing member installed on the mounting cap, the pressing member is provided with an extrusion port and an extrusion channel that can communicate with the pneumatic chamber, the extrusion port is communicated with the extrusion channel, and the connection between the extrusion port and the extrusion channel is located on the side of the extrusion channel. A sliding member is slidably connected in the extrusion channel, and the sliding member is connected to the end of the extrusion channel closest to the connection by a second elastic member; a first elastic member is installed between the mounting cap and the pressing member to provide a driving force for resetting the mounting cap; a blocking member can move from one end of the extrusion channel to the other end, and the blocking member and the extrusion channel adopt movable sealing; a first piston is installed on the pressing member and can change the internal air pressure of the pneumatic chamber following the movement of the pressing member. When the pressing member is pressed downward, the first piston will compress the toothpaste in the air pressure chamber, increasing the pressure of the toothpaste in the air pressure chamber, so that the toothpaste in the air pressure chamber can push the blocking member to move along the extrusion channel. When the blocking member moves to the connection point, the blocking member will push the sliding member to compress the second elastic member, so that the blocking member can pass over the connection point, allowing the toothpaste to be extruded from the extrusion port; when the pressing member returns upward, the first piston will create a negative pressure in the air pressure chamber, and the toothpaste in the extrusion channel will be sucked back into the air pressure chamber. The blocking member is pushed back to one side of the connection point under the action of the second elastic member, so that the end of the blocking member to the air pressure chamber is in a closed state, and the blocking member will be sucked back to the end of the extrusion channel under the action of the negative pressure.

[0007] By adopting the above technical solution, the air pressure change in the air pressure chamber is transmitted through the first piston to drive the flow of toothpaste; the sliding member and the blocking member control the extrusion and sealing of toothpaste through mechanical linkage; the first elastic member and the second elastic member respectively ensure the reset of the pressing member and the sliding member, so that the system returns to the initial state after each pressing. This design not only realizes accurate dosage control and reduces toothpaste residue, but also effectively isolates air through the movable sealing blocking member, extending the shelf life of toothpaste. In addition, the detachable connection between the installation cap and the bottle body facilitates cleaning and changing the type of toothpaste, improving the flexibility and hygiene of use.

[0008] Optionally, the installation cap includes an end cap and a connecting member. The end cap is rotatably connected to the connecting member, and the connecting member is detachably connected to the bottle body. The connecting member is provided with a notch, and the first piston is arranged in the notch. The inner wall of the notch and the bottom surface of the first piston enclose the air pressure chamber.

[0009] By adopting the above technical solution, the installation cap is designed as a split type. On the one hand, it is convenient for the installation between various components. On the other hand, other functions can be integrated into the installation cap to increase the functions of the overall toothpaste bottle; the air pressure chamber enclosed by the inner wall of the notch and the bottom surface of the first piston is the power source for the flow of the entire toothpaste. The air pressure change in the air pressure chamber cooperates with the blocking member to realize the extrusion of toothpaste, the reflux of toothpaste, and the automatic filling of toothpaste. Optionally, the bottle body includes an outer bottle and an inner bottle. The inner bottle is detachably connected to the connecting member. The bottom end of the inner bottle is communicated with the inside of the outer bottle. A second piston is slidably connected in the inner bottle. The outer bottle is detachably connected to the connecting member, and the outer bottle is provided with an air hole for communicating the inside and outside.

[0010] By adopting the above technical solution, the outer bottle is used for support on the one hand and isolates the influence of most of the air on the toothpaste stored in the inner bottle on the other hand. When the first piston returns upward, the toothpaste in the inner bottle can be extracted into the air pressure chamber, which will also cause a change in the air pressure in the inner bottle. The second piston will move upward under the action of the pressure difference. The air hole mainly balances the air pressure difference between the inner and outer bottles, enabling the second piston to move more smoothly.

[0011] Optionally, the connecting member is provided with a transport port communicating the interior of the inner bottle with the air pressure chamber. A fixing member and a first blocking block are arranged in the air pressure chamber. The fixing member and the first blocking block are connected by a third elastic member. The first blocking block abuts against the inner wall of the notch and can block the transport port.

[0012] By adopting the above technical solution, the fixing member, the first blocking block and the third elastic member form a one-way valve. When the first piston moves downward to increase the pressure in the air pressure chamber, the first blocking block blocks the transport port. In this way, the toothpaste will only be squeezed into the extrusion channel under the action of pressure and push the blocking member to move in the extrusion channel. When the first piston resets upward, the air pressure in the air pressure chamber decreases. First, the toothpaste in the extrusion channel will be sucked back into the air pressure chamber. The plug will be reset under the action of negative pressure, so that the plug column exits the extrusion channel. In this way, the first blocking block moves upward under the action of differential pressure, enabling the toothpaste to be replenished into the air pressure chamber.

[0013] Optionally, the end cap is provided with an opening penetrating the top surface and the bottom surface. The top surface of the end cap is provided with a first annular groove surrounding the opening. The pressing member is provided with a rotating portion rotatably connected to the first annular groove. The inner wall of the opening is provided with a first step. The first elastic member is located between the first step and the pressing member.

[0014] By adopting the above technical solution, the pressing member can rotate relative to the end cap, and the user can squeeze the toothpaste from different angles. On the other hand, the rotating pressing member has stronger anti-interference ability. The first annular groove shortens the minimum distance between the pressing member and the end cap. When the pressing member receives a load in the horizontal direction, the pressing member can better resist it.

[0015] Optionally, the pressing member is rotatably connected with a first column. The opening is provided with a first step. The first elastic member is sleeved on the first step. One end of the first elastic member abuts against the first step, and the other end abuts against the pressing member.

[0016] By adopting the above technical solution, the relative rotation between the end cap and the pressing member will not affect the function of the first elastic member.

[0017] Optionally, the end cap is provided with a plurality of first grooves distributed along the circumference of the end cap. The side surface of the connecting member is provided with a plurality of first concave holes. A ball is installed in the first concave hole. A first spring is arranged between the ball and the first concave hole. The first spring forces the ball to move towards the first groove.

[0018] By adopting the above technical solution, the end cap and the connecting member can rotate relative to each other. Whenever the end cap is rotated, the first spring and the ball will feedback different reaction forces to the user, playing a reminder role. On the other hand, the first spring and the ball also limit the rotation of the end cap, making the end cap unable to rotate randomly.

[0019] Optionally, a first limiting portion is provided in the notch, and the first piston is provided with an abutting portion that is engaged with the first limiting portion. The engagement between the first limiting portion and the abutting portion can prevent the first piston from rotating, and the first piston is slidably key-connected to the first column.

[0020] By adopting the above technical solution, under the action of the first limiting portion and the abutting portion, the rotation of the first piston is prevented, so that the first piston can only move up and down; the first piston and the first column are connected by a sliding key. In order to enable the first piston to move relative to the first column, the pressing member is prone to accidental touch. Especially when the toothpaste bottle is placed in a backpack, since the toothpaste bottle will be subjected to pressures in different directions in the backpack, the toothpaste will be squeezed out of the toothpaste bottle; there are also related designs for the existing pressing bottles, that is, the pressing member is prevented from being pressed down by a locking block / locking mechanism. However, since the pressing member and related components are all made of plastic parts, the rigid obstruction will cause deformation of the related components and affect normal use; the first column can move downward relative to the first piston, and the change in pressure in the air pressure chamber caused by the first column is limited, which can only cause part of the toothpaste to be back-pressed into the extrusion channel, so as to achieve the result of preventing accidental touch. The toothpaste pressed into the extrusion channel can also be drawn back into the air pressure chamber during the reset of the pressing member.

[0021] Optionally, a second step is provided at the bottom end of the first column. The first column is sleeved with a lifting cylinder. The lifting cylinder is connected to the end cap by a spline, and the lifting cylinder is threadedly connected to the first column. The first piston is located between the lifting column and the second step. By adopting the above technical solution, the main function of the second step is to drive the first piston to move upward when the first column is reset upward, so as to realize the reset of the first piston; the main function of the lifting column is to drive the first piston to move downward when the first column moves downward; when the end cap is rotated, under the action of the spline, the lifting cylinder can be driven to rotate around the first column. Since the first cylinder is slidably key-connected to the first column, and under the action of the spiral groove and the moving block, the lifting cylinder can move up and down along the first column, so as to drive the first piston to move up and down through the lifting cylinder and the second step; when the lifting cylinder moves upward and disengages from the first piston, the first column and the first piston can move relatively, so that the entire toothpaste bottle enters the anti-accidental-touch state.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The air pressure change in the air pressure chamber is transmitted through the first piston to drive the flow of toothpaste. The mechanical linkage of the sliding member and the sealing member is used to control the extrusion and sealing of toothpaste, effectively reducing the toothpaste remaining in the nozzle, and realizing accurate metering; the sealing member with movable sealing effectively isolates air, prevents the toothpaste from oxidizing and deteriorating, and extends the shelf life of the toothpaste; 2. The first piston is prevented from rotating by the first limiting portion and the abutting portion, and can only move up and down. The first piston is connected to the first cylindrical sliding key, and the first cylinder can move downward relative to the first piston. The change in the pressure of the air pressure chamber is limited, and part of the toothpaste is pressed into the extrusion channel and can be retracted when the pressing member is reset, realizing the anti-misoperation function and avoiding toothpaste extrusion caused by misoperation. The design of the second step and the lifting cylinder enables the lifting cylinder to be driven by rotating the end cover to flexibly control the up and down movement of the first piston. When the lifting cylinder is disengaged from the first piston, it enters the anti-misoperation state. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present application; Figure 2 is an exploded schematic diagram of the overall structure of Embodiment 1 of the present application; Figure 3 is the present application Figure 1 cross-sectional schematic diagram; Figure 4 is an assembled structure schematic diagram of the pressing member and the mounting cover in Embodiment 1 of the present application; Figure 5 is a schematic diagram of the overall structure of the bottle body in Embodiment 1 of the present application; Figure 6 is a schematic diagram of the overall structure of the mounting cover in Embodiment 1 of the present application; Figure 7 is an assembled structure schematic diagram of the first plug, the fixing member and the third elastic member in Embodiment 1 of the present application; Figure 8 is a schematic diagram of the overall structure of the end cover in Embodiment 1 of the present application; Figure 9 is a schematic diagram of the overall structure of the pressing member in Embodiment 1 of the present application; Figure 10 is a schematic diagram of the overall structure of Embodiment 2 of the present application; Figure 11 is an assembled structure schematic diagram of the pressing member and the mounting cover in Embodiment 2 of the present application; Figure 12 is an exploded schematic diagram of the pressing member and the mounting cover in Embodiment 2 of the present application.

[0024] Description of reference numerals: 1, bottle body; 11, outer bottle; 111, second protrusion; 112, air hole; 12, inner bottle; 2, mounting cover; 21, end cover; 211, first annular groove; 2111, vertical groove; 2112, horizontal groove; 212, opening; 213, first clamping groove; 214, first step; 215, fourth protrusion; 216, lifting cylinder; 217, first groove; 218, annular groove; 22, connecting member; 221, first blocking block; 2211, fixing member; 2212, third elastic member; 222, first protrusion; 223, transport port; 224, mounting groove; 2241, third protrusion 225, second limiting portion; 226, annular protrusion; 227, first recessed hole; 2271, ball bearing; 2272, first spring; 228, notch; 3, pressing member; 31, extrusion channel; 311, second elastic member; 312, sliding member; 32, first column; 321, second step; 33, fifth protrusion; 34, rotating portion; 35, mounting member; 36, extrusion port; 4, first piston; 41, abutment portion; 5, second piston; 6, first elastic member; 7, air pressure chamber; 71, first limiting portion; 8, storage area; 9, blocking member; 91, fixing cylinder; 92, deformation strip; 93, second blocking block. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1 -Attached Figure 12 This application is described in further detail.

[0026] The embodiment of the present application discloses a squeeze-type toothpaste bottle.

[0027] Example 1, reference Figure 1 , Figure 2 and Figure 3 , a squeeze toothpaste bottle comprises a bottle body, a mounting cover installed at the end of the bottle body, a pressing piece slidably connected to the mounting cover, a first elastic piece arranged between the pressing piece and the mounting cover, and a first piston arranged in the bottle body, wherein an air pressure chamber is arranged on the mounting cover, a second piston is arranged in the air pressure chamber, the mounting cover is fixedly connected with a first column extending deep into the air pressure chamber, the pressing piece and the first column are both provided with an extrusion channel connected to the air pressure chamber, the first column and the second piston are fixed by plugging, and a blocking piece is arranged in the extrusion channel; a second piston is arranged in the bottle body, when the pressing piece is pressed down, the first piston moves downward, so that the pressure in the air pressure chamber increases, and the blocking piece is lifted so that the toothpaste can be squeezed out from the extrusion channel; the pressing piece will reset and move upward under the action of the first elastic piece, and the first piston will move upward with the pressing piece, at this time the pressure in the air pressure decreases, the blocking piece will reset and close the extrusion channel, and the toothpaste will be sucked from the bottle body into the air pressure chamber, and the first elastic piece in Example 1 is a spring.

[0028] refer to Figure 3, the plugging member in Embodiment 1 includes a fixed cylinder, a deformable strip made of a deformable material, and a second plugging block capable of plugging the extrusion channel. One end of the fixed cylinder abuts against the first column, and the other end abuts against a step provided inside the first piston. The second plugging block is connected to the fixed cylinder through the deformable strip. In this way, when an upward force is applied to the second plugging block, the deformable strip deforms and the second plugging block moves upward, causing the extrusion channel to communicate with the air pressure chamber.

[0029] Reference Figure 4 , Figure 5 and Figure 6 , the mounting cap includes an end cap and a connecting member. A plurality of first protrusions are provided on the outer side of the connecting member, and a first clamping groove mating with the first protrusions is provided on the inner side of the end cap. The connecting member is provided with a notch, and the first piston is disposed in the notch. The inner wall of the notch and the bottom surface of the first piston enclose the air pressure chamber. The bottle body includes an outer bottle and an inner bottle. The inner bottle is threadedly connected to the connecting member. An installation groove is provided on the outer side of the connecting member, and a third protrusion is provided in the installation groove. A second protrusion mating with the installation groove is provided inside the outer bottle. The installation of the outer bottle and the connecting member is completed through the second protrusion and the installation groove. The third protrusion can prevent the second protrusion from moving back. The bottom end of the inner bottle communicates with the inside of the outer bottle. A second piston is slidably connected inside the inner bottle. The inner wall of the inner bottle and the second piston enclose a closed storage area. The outer bottle is provided with an air hole communicating the inside and the outside. When the pressure in the air pressure chamber decreases, the toothpaste in the storage area will be sucked into the air pressure chamber, resulting in a decrease in the pressure in the storage area, causing the second piston to move upward. On the one hand, it balances the air pressure in the storage area, and on the other hand, it scrapes the toothpaste adhering to the inner wall of the inner bottle.

[0030] Reference Figure 4 and Figure 7 , a transportation port communicating the inside of the inner bottle with the air pressure chamber is provided in the notch of the connecting member. A fixing member and a first plugging block are provided in the air pressure chamber. The fixing member and the first plugging block are connected by a third elastic member. The first plugging block abuts against the inner wall of the notch and can plug the transportation port.

[0031] Reference Figure 4 , Figure 8 and Figure 9 , the connecting member is fixedly connected with a second limiting portion, and a fourth protrusion mating with the second limiting portion is provided on the end cap. The cooperation between the second limiting portion and the fourth protrusion can limit the rotation of the connecting member and the end cap.

[0032] Reference Figure 4 , Figure 8 and Figure 9, the end cap is provided with an opening penetrating the top and bottom surfaces. The top surface of the end cap is provided with a first annular groove that surrounds the opening. The pressing member is provided with a rotating portion rotatably connected to the first annular groove. The inner wall of the opening is provided with a first step, and a first elastic member is located between the first step and the pressing member. The opening is provided with a first step, and the first elastic member is sleeved on the first step. One end of the first elastic member abuts against the first step, and the other end abuts against the pressing member; several vertical grooves are provided in the first annular groove, and a horizontal groove is provided at the top of the vertical grooves. The pressing member is provided with a fifth protrusion, and the fifth protrusion is inserted into the vertical grooves through the horizontal groove. The vertical grooves enable the pressing member to move up and down in the vertical direction. The pressing member is located in the horizontal groove under the action of the first elastic member. At this time, only by rotating the pressing member can the vertical movement of the pressing member be restricted.

[0033] The implementation principle of an extrusion-type toothpaste bottle in an embodiment of the present application is as follows: When the user presses, the pressing member pushes the first piston downward, compressing the volume of the air pressure chamber, resulting in an increase in the internal pressure. The increased air pressure overcomes the resistance of the deformation strip, and the second plug is lifted, opening the extrusion channel, and the toothpaste is extruded from the channel. At this time, the high pressure in the air pressure chamber makes the first plug tightly adhere to the transport port to prevent the toothpaste from flowing back to the storage area; after releasing the pressing member, the first elastic member pushes the pressing member and the first piston upward, increasing the volume of the air pressure chamber, forming a negative pressure. The negative pressure causes the second plug to reset, closing the extrusion channel. The negative pressure in the air pressure chamber overcomes the elastic force of the third elastic member, sucking open the first plug, and the toothpaste in the storage area enters the air pressure chamber through the transport port. The reduction in the volume of the storage area causes the second piston to move upward, and the outer bottle intakes air through the air hole to balance the pressure, and at the same time, the residue on the inner bottle wall is scraped off.

[0034] Embodiment 2, refer to Figure 10 , the difference between this embodiment and Embodiment 1 is that: the pressing member is provided with an extrusion port that communicates with the extrusion channel. The connection between the extrusion port and the extrusion channel is located on the side of the extrusion channel. A sliding member is slidably connected in the extrusion channel, and the sliding member is connected to the end of the extrusion channel closest to the connection by a second elastic member; a blocking member that can move from one end of the extrusion channel to the other end, and the blocking member and the extrusion channel are hermetically sealed; when pressing the pressing member downward, the first piston will compress the toothpaste in the air pressure chamber, increasing the pressure of the toothpaste in the air pressure chamber, so that the toothpaste in the air pressure chamber can push the blocking member to move along the extrusion channel. When the blocking member moves to the connection, the blocking member will push the sliding member to compress the second elastic member, so that the blocking member can pass over the connection, allowing the toothpaste to be extruded from the extrusion port; when the pressing member returns upward, the first piston will cause a negative pressure to be formed in the air pressure chamber, and the toothpaste in the extrusion channel will be sucked back into the air pressure chamber. The blocking member is pushed back to one side of the connection under the action of the second elastic member, so that one end of the blocking member to the air pressure chamber is in a closed state, and the blocking member will be sucked back to the end of the extrusion channel under the action of the negative pressure.

[0035] The air pressure change in the air pressure chamber is transmitted through the first piston to drive the toothpaste to flow; the sliding member and the blocking member control the extrusion and sealing of the toothpaste through mechanical linkage; the first elastic member and the second elastic member respectively ensure the reset of the pressing member and the sliding member, so that the system returns to the initial state after each press. This design not only achieves accurate dosage control and reduces toothpaste residue, but also effectively isolates air through the movable sealing blocking member, extending the shelf life of the toothpaste. In addition, the detachable connection between the installation cover and the bottle body facilitates cleaning and changing the type of toothpaste, improving the flexibility and hygiene of use.

[0036] Reference Figure 11 and Figure 12 , the pressing member is fixedly connected with an installation member, the first column penetrates through the installation member, and the installation member abuts the first column against the bottom end of the installation member, so that the first column can rotate relative to the installation member. The extrusion channels are distributed in the first column and the pressing member. In Embodiment 1, the blocking member is a sphere with two missing faces, and a sealing ring is installed on the sphere; the end cover is provided with a number of first grooves, and the number of first grooves are distributed along the circumference of the end cover. The side surface of the connecting member is provided with a number of first concave holes, and balls are installed in the first concave holes. A first spring is arranged between the ball and the first concave hole, and the first spring forces the ball to move toward the first groove. Relative rotation can occur between the end cover and the connecting member. Whenever the end cover is rotated, the first spring and the ball will feedback different reaction forces to the user, playing a reminder role; on the other hand, the first spring and the ball also limit the rotation of the end cover, so that the end cover cannot rotate arbitrarily; an annular protrusion is arranged on the outer side of the connecting member, the annular protrusion surrounds the connecting member, the end cover is provided with an annular groove, and the annular protrusion is engaged with the annular groove, and the end cover can rotate relative to the connecting member.

[0037] Reference Figure 11 and Figure 12 , a first limiting portion is arranged in the notch, the first piston is provided with an abutting portion that is engaged with the first limiting portion, and the engagement between the first limiting portion and the abutting portion can prevent the first piston from rotating. The first piston is connected to the first column by a sliding key. A second step is arranged at the bottom end of the first column. The first column is sleeved with a lifting cylinder, the lifting cylinder is connected to the end cover by a spline, and the lifting cylinder is threadedly connected to the first column. The first piston is located between the lifting cylinder and the second step.

[0038] Under the action of the first limiting portion and the abutting portion, the rotation of the first piston is prevented, so that the first piston can only move up and down; the first piston is connected to the first column by a sliding key. In order to enable the first piston to move relative to the first column, the pressing member is prone to accidental touch. Especially when the toothpaste bottle is placed in a backpack, since the toothpaste bottle will be subjected to pressures in different directions in the backpack, the toothpaste will be squeezed out of the toothpaste bottle; there are also related designs for the existing pressing bottles, that is, the pressing member is prevented from being pressed down by a locking block / locking mechanism. However, since the pressing member and related components are all made of plastic parts, the rigid obstruction will cause deformation of the related components and affect normal use; the first column can move downward relative to the first piston, and the change in the pressure in the air pressure chamber by the first column is limited, which can only cause part of the toothpaste to be back-pressed into the extrusion channel. In this way, the entire anti-accidental-touch result is achieved, and the toothpaste pressed into the extrusion channel can also be drawn back into the air pressure chamber during the reset of the pressing member.

[0039] The main function of the second step is to drive the first piston to move upward when the first column moves upward to achieve the reset of the first piston; the main function of the lifting cylinder is to drive the first piston to move downward when the first column moves downward; when the end cover is rotated, the lifting cylinder can be driven to rotate around the first column under the action of the spline. Since the first cylinder is connected to the first column by a sliding key and under the action of the spiral groove and the moving block, the lifting cylinder can move up and down along the first column, so as to drive the first piston to move up and down through the lifting cylinder and the second step; when the lifting cylinder moves upward and disengages from the first piston, the first column and the first piston can move relatively, so that the entire toothpaste bottle enters the anti-accidental-touch state.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A squeeze-type toothpaste bottle, characterized in that: include The bottle body (1) is provided with a storage area (8) for storing toothpaste; A mounting cover (2) detachably connected to the top of the bottle body (1), wherein the mounting cover (2) is provided with an air pressure chamber (7) capable of communicating with the storage area (8); A pressing member (3) is mounted on the mounting cover (2), the pressing member (3) being provided with an extrusion port (36) and an extrusion channel (31) capable of communicating with the air pressure chamber (7), the extrusion port (36) being communicated with the extrusion channel (31), the connection between the extrusion port (36) and the extrusion channel (31) being located on the side of the extrusion channel (31), a sliding member (312) being slidably connected in the extrusion channel (31), and the end of the sliding member (312) closest to the connection with the extrusion channel (31) being connected via a second elastic member (311); A first elastic member (6) is installed between the installation cover (2) and the pressing member (3) to provide a driving force for resetting the installation cover (2); A blocking member (9) is movable from one end of the extrusion channel (31) to the other end, and the blocking member (9) and the extrusion channel (31) are movable sealed; The first piston (4) is mounted on the pressing member (3) and is capable of following the movement of the pressing member (3) to change the internal air pressure of the air pressure chamber (7).

2. The squeeze-type toothpaste bottle according to claim 1, characterized in that: The mounting cover (2) comprises an end cover (21) and a connecting piece (22), the end cover (21) and the connecting piece (22) are rotatably connected, the connecting piece (22) and the bottle body (1) are detachably connected, the connecting piece (22) is provided with a notch (228), the first piston (4) is arranged in the notch (228), and the inner wall of the notch (228) and the bottom surface of the first piston (4) enclose the air pressure chamber (7).

3. The squeeze-type toothpaste bottle according to claim 2, characterized in that: The bottle body (1) comprises an outer bottle (11) and an inner bottle (12); the inner bottle (12) is detachably connected to a connecting piece (22); the bottom end of the inner bottle (12) is connected to the inside of the outer bottle (11); a second piston (5) is slidably connected to the inner bottle (12); the outer bottle (11) is detachably connected to the connecting piece (22); and the outer bottle (11) is provided with an air hole (112) connecting the inside and the outside.

4. The squeeze-type toothpaste bottle according to claim 3, characterized in that: The connecting piece (22) is provided with a transport port (223) connecting the interior of the inner bottle (12) and the air pressure chamber (7); a fixing piece (2211) and a first blocking block (221) are provided in the air pressure chamber (7); the fixing piece (2211) and the first blocking block (221) are connected via a third elastic piece (2212); the first blocking block (221) abuts against the inner wall of the recess (228) and can block the transport port (223).

5. The squeeze-type toothpaste bottle according to claim 4, characterized in that: The end cover (21) is provided with an opening (212) penetrating the top surface and the bottom surface; the top surface of the end cover (21) is provided with a first annular groove (211); the first annular groove (211) surrounds the opening (212); the pressing member (3) is provided with a rotating portion (34) rotatably connected to the first annular groove (211); the inner wall of the opening (212) is provided with a first step (214); and the first elastic member (6) is located between the first step (214) and the pressing member (3).

6. The squeeze-type toothpaste bottle according to claim 5, characterized in that: The pressing member (3) is rotatably connected to the first column (32); the opening (212) is provided with a first step (214); the first elastic member (6) is sleeved on the first step (214); one end of the first elastic member (6) abuts against the first step (214) and the other end abuts against the pressing member (3).

7. The squeeze-type toothpaste bottle according to claim 6, characterized in that: The end cover (21) is provided with a plurality of first grooves (217), the plurality of first grooves (217) being distributed along the circumference of the end cover (21), the side surface of the connecting member (22) is provided with a plurality of first concave holes (227), a ball (2271) being installed in the first concave hole (227), a first spring (2272) being provided between the ball (2271) and the first concave hole (227), the first spring (2272) forcing the ball (2271) to move toward the first groove (217).

8. The squeeze-type toothpaste bottle according to claim 7, characterized in that: A first limiting portion (71) is provided in the recess (228), and the first piston (4) is provided with an abutting portion (41) matched with the first limiting portion (71). The first limiting portion (71) and the abutting portion (41) are matched to prevent the first piston (4) from rotating. The first piston (4) is key-connected to the first column (32).

9. The squeeze-type toothpaste bottle according to claim 8, characterized in that: A second step (321) is provided at the bottom end of the first column (32), a lifting cylinder (216) is sleeved on the first column (32), the lifting cylinder (216) and the end cover (21) are spline-connected, the lifting cylinder (216) and the first column (32) are threadedly connected, and the first piston (4) is located between the lifting cylinder and the second step (321).

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