Multi-taste toothpaste dispensing device

Abstract

The invention discloses a multi-taste toothpaste distribution device which is characterized in that the upper part of a shell of an all-in-one machine is provided with a toothpaste body bin, the outlet part of the toothpaste body bin is fixedly connected with a switching structure which is communicated with the toothpaste body bin, and the switching structure is provided with a valve element assembly capable of switching the rotation angle among a plurality of preset positions; the switching structure can be only communicated with the outlet channel of one paste bin at any preset position, a public working cavity is formed in the lower portion of the switching structure, paste in the paste bins enters the public working cavity through the switching structure and is conveyed to the single paste outlet channel, and at any switching position, the switching structure is communicated with the single paste outlet channel. The public working cavity is only communicated with one independent bin body of the paste bin, the public working cavity comprises a cavity body and a piston driving piece capable of reciprocating in the axial direction of the cavity body, the piston driving piece can drive a plug block to move in the cavity body so as to change the volume of the cavity body, and an air inlet channel and an air inlet valve are arranged at the end of the plug block of the public working cavity; the other end of the public working cavity is communicated with the toothpaste outlet channel, and a toothbrush triggering structure is arranged on the lower portion of the shell of the all-in-one machine.

Description

Technical Field

[0001] This invention relates to the field of personal oral care devices, specifically to a multi-flavor toothpaste dispensing device. Background Technology

[0002] In oral care products, toothpaste typically comes in various flavors to cater to different users. Existing multi-flavor toothpaste products usually achieve flavor changes by changing different toothpaste boxes or ingredient containers. This approach requires frequent manual disassembly or replacement by the user and cannot achieve instant switching between multiple flavors after a single installation. Furthermore, it lacks automated supply and quantitative control functions. In addition, using multiple dispensing nozzles or long common channels when multiple toothpastes are installed can easily lead to problems such as residue, leakage, and cross-contamination. Therefore, it is necessary to provide a dispensing device that can selectively dispense multiple toothpastes while reducing the risk of residue and cross-contamination when multiple toothpastes are installed simultaneously. Summary of the Invention

[0003] To solve the above-mentioned technical problems, a multi-flavor toothpaste dispensing device is provided. This technical solution solves the problems mentioned in the background technology, such as the inability to achieve instant switching between multiple flavors after a single installation and the lack of automated supply and quantitative control functions. In addition, if multiple toothpaste outlets or long common channels are used under the condition of multiple toothpastes, it is easy to generate problems of residue, leakage and cross-contamination.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a multi-flavor toothpaste dispensing device, comprising an integrated machine, wherein the upper part of the housing of the integrated machine is provided with a toothpaste compartment, the toothpaste compartment contains multiple independent compartments, the outlet of the toothpaste compartment is fixedly connected to and communicates with a switching structure, the switching structure has a valve core assembly that can switch the rotation angle between multiple predetermined positions, the switching structure can be connected to the outlet channel of only one toothpaste compartment in any predetermined position, the lower part of the switching structure is provided with a common working chamber, the toothpaste in the toothpaste compartments all enters the common working chamber through the switching structure and is conveyed to a single toothpaste dispensing channel, in any switching position, the toothpaste is dispensed into the toothpaste compartment. The common working chamber is only connected to one of the independent compartments of the toothpaste compartment. The common working chamber includes a cavity and a piston assembly that can reciprocate along the cavity axis. The piston assembly includes a plug and a piston drive connected thereto. The end of the plug of the common working chamber is provided with an air intake channel and an air intake valve. During the reverse movement of the plug, the piston drive causes the common working chamber to first communicate with the outside through the air intake channel to form an air volume. Then the air intake valve is closed to form a closed suction state, forming an air section and a toothpaste section in the common working chamber. The other end of the common working chamber is connected to the toothpaste dispensing channel. The lower part of the housing of the all-in-one machine is provided with a toothbrush trigger structure.

[0005] Preferably, the ointment container includes: an integrated outer shell and partitions, wherein the integrated outer shell is fixedly connected to the housing of the integrated machine, and multiple partitions are fixedly connected to the inner wall of the integrated outer shell;

[0006] Preferably, the switching structure includes: a feed pipe, a control valve, and a connecting component. The inlet end of the connecting component is fixedly connected to one end of the feed pipe, and the other end of the feed pipe is fixedly connected to the outlet end of the control valve. The control valve is used to control the outlet of the paste chamber, and the interface of the connecting component is fixedly connected to the inlet of the common working chamber.

[0007] Preferably, the common working chamber is the only working chamber in the lower part of the switching structure, and the plug of the common working chamber is sealed to the inner wall of the chamber.

[0008] Preferably, the driving source of the piston drive is a lead screw motor, which is used to drive the piston block to move linearly along the axial direction.

[0009] Preferably, the intake valve is used to control the connection and blockage between the intake channel and the outside world. The opening and closing of the intake valve is coordinated with the reciprocating motion of the plug. The intake valve realizes the connection and blockage of the intake channel by the relative position change between the valve core and the valve body.

[0010] Preferably, the maximum volume change of the common working chamber is greater than the internal volume of the ointment outlet channel;

[0011] Preferably, the switching structure is a rotary valve core structure or a sliding valve core structure;

[0012] Preferably, the ointment container is a detachable, independent consumable component;

[0013] Preferably, a one-way valve is provided at the outlet end of the ointment container;

[0014] Preferably, the bottom of the ointment container is provided with a sliding piece that can move axially along the container opening, and the sliding piece is in a sealing fit with the inner wall of the ointment container;

[0015] Preferably, the toothbrush triggering structure has a U-shaped guide groove at the bottom, which is used to limit the position and direction of the brush head. The toothbrush triggering structure also has a trigger element in the middle, which is a mechanical trigger element, a photoelectric sensor, or a capacitive sensor.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By setting up a toothpaste compartment inside the all-in-one machine to hold toothpaste of different flavors, multiple flavors of toothpaste can be stored in the all-in-one machine, providing different toothpaste supply conditions, allowing for instant switching, and reducing the operational burden caused by frequent replacement of consumables;

[0018] 2. The switchable channel function of the switching structure enables the switching of channels for multiple flavors of toothpaste. The toothpaste is squeezed out into a single dispensing channel. The unified dispensing path ensures that when the toothbrush is placed on the toothbrush trigger structure, the toothpaste is stably squeezed onto the brush head. This simple structure facilitates subsequent cleaning and maintenance, while avoiding the assembly complexity caused by multiple outlet channels.

[0019] 3. The brush head, guided by the U-shaped guide groove, can accurately press the trigger, allowing the toothbrush to be naturally pushed to the trigger when held with one hand, thus improving the stability and hygiene of toothpaste dispensing.

[0020] 4. The switching structure can effectively control the paste entering the paste compartment, preventing pastes of different flavors from entering the common space of the switching structure at the same time, avoiding mixing between different pastes, and effectively preventing cross-contamination of flavors between pastes.

[0021] 5. By coordinating the switching structure with the common working chamber, the valve body of the switching structure and the common working chamber can draw back and shut off the storage of residual paste in the pipeline, reducing the leakage and residue of paste, and effectively inhibiting the cross-contamination of different flavor pastes. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the integrated outer shell and partition structure of the present invention;

[0025] Figure 4 This is a partial structural diagram of the present invention;

[0026] Figure 5 This is a schematic diagram of the toothbrush triggering structure of the present invention.

[0027] The numbers on the map are:

[0028] 1. All-in-one machine; 2. Paste container; 3. Switching structure; 4. Common working chamber; 5. Toothbrush triggering structure; 21. One-piece shell; 22. Partition; 31. Feeding pipe; 32. Control valve; 33. Connecting component; 51. U-shaped guide groove; 52. Triggering component. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] Please refer to Figure 1 , Figure 2 and Figure 5 As shown, a multi-flavor toothpaste dispensing device includes an integrated machine 1. The upper part of the housing of the integrated machine 1 is provided with a toothpaste compartment 2, which contains multiple independent compartments. A switching structure 3 is fixedly connected to the outlet of each toothpaste compartment 2 and communicates with it. The switching structure 3 has a valve core assembly that can switch rotation angles between multiple predetermined positions. In any predetermined position, the switching structure 3 can communicate with only the outlet channel of one of the toothpaste compartments 2. A common working chamber 4 is provided at the lower part of the switching structure 3. The toothpaste from each toothpaste compartment 2 enters the common working chamber 4 through the switching structure and is conveyed to a single toothpaste outlet channel. In any switching position, the common working chamber 4 communicates only with the toothpaste outlet. One of the independent compartments of compartment 2 is connected. The common working chamber 4 includes a cavity and a piston assembly disposed in the cavity and capable of reciprocating along the cavity axis. The piston assembly includes a plug and a piston drive connected thereto. The end of the plug of the common working chamber 4 is provided with an air intake channel and an air intake valve. During the reverse movement of the plug, the piston drive causes the common working chamber 4 to first communicate with the outside through the air intake channel to form an air volume. Then the air intake valve is closed to form a closed suction state. An air section and a toothpaste section are formed in the common working chamber 4. The other end of the common working chamber 4 is connected to the toothpaste dispensing channel. The lower part of the housing of the all-in-one machine 1 is provided with a toothbrush trigger structure 5.

[0032] The common working chamber 4 is the only working chamber in the lower part of the switching structure, and the plug of the common working chamber 4 is sealed to the inner wall of the chamber.

[0033] The piston drive unit is driven by a lead screw motor, which is used to drive the piston block to move linearly along the axial direction.

[0034] The intake valve is used to control the connection and blockage between the intake channel and the outside world. The opening and closing of the intake valve is coordinated with the reciprocating motion of the plug. The intake valve realizes the connection and blockage of the intake channel by the relative position change between the valve core and the valve body.

[0035] The maximum volume change of the common working chamber 4 is greater than the internal volume of the ointment dispensing channel;

[0036] The switching structure 3 is a rotary valve core structure or a sliding valve core structure.

[0037] The toothbrush triggering structure 5 has a U-shaped guide groove 51 at the bottom, which is used to limit the position and direction of the brush head. The toothbrush triggering structure 5 also has a trigger element 52 in the middle, which is a mechanical trigger element, a photoelectric sensor, or a capacitive sensor.

[0038] Working Principle: When using the all-in-one device 1, the control system determines the target toothpaste compartment 2 according to a preset mode, which includes a user-specified mode or a randomly assigned mode. When the toothbrush enters the sensing area of ​​the toothbrush trigger structure 5, the trigger element 52 generates a trigger signal. The control system responds to the signal, and the main control circuit board inside the all-in-one device 1 drives each component to move in an orderly manner. The switching structure 3 is driven by the built-in motor to rotate, causing the rotating part of the switching structure 3 to rotate. Multiple interfaces connecting to the toothpaste compartment 2 are provided on the top of the rotating part of the switching structure 3. As the rotating part of the switching structure 3 rotates, the corresponding interfaces align with the openings of the independent compartments of the toothpaste compartment 2, completing the connection. When the valve core of the switching structure 3 rotates to the first... At the predetermined position, the common working chamber 4 is connected to the independent outlet of the target paste chamber 2. The piston drive component on the side of the common working chamber 4 is activated. The piston drive component is a screw-driven plug block of a screw motor that performs reverse movement in the cavity of the common working chamber 4. In the initial stage of the reverse movement, the air inlet valve is in the open state, so that the common working chamber 4 is connected to the outside through the air inlet channel, thereby forming an air volume in the cavity. Then the air inlet valve is closed, the switching structure 3 rotates to the second predetermined position, and the piston drive component continues to move in the reverse direction, so that the paste in the target paste chamber 2 is sucked into the common working chamber 4, forming an air segment and a toothpaste segment in the cavity. After the suction action is completed, the piston drive component performs forward movement, pushing the toothpaste segment out to the toothbrush head through the paste outlet channel.

[0039] The air section is discharged at the end, and its volume can be no less than the dead cavity volume inside the paste outlet channel, thereby refreshing the residual paste in the paste outlet channel and achieving the thread breaking effect. After completing one paste outlet action, the piston drive can perform a small reverse return stroke, so that the residual paste near the paste outlet is sucked back into the common working chamber 4 to reduce the risk of dripping. Since the switching structure 3 is structurally limited to allowing only one paste to be connected at any given time, the back suction effect only acts on the currently selected paste path, thereby reducing the possibility of cross-mixing between different flavor pastes.

[0040] When the common working chamber 4 performs a back suction action, it reduces the pressure in the proximal region of the single ointment outlet channel selected by the valve body of the one-way valve of the switching structure 3, thereby drawing back the residual ointment near the outlet. Under the blocking effect of the one-way valve of the switching structure 3 and the selection or closing state of the valve core assembly, the back suction action is limited to the proximal region of the single ointment outlet channel selected by the top interface of the switching structure 3. Under the blocking effect of the one-way valve, the negative pressure area is limited to the proximal region of the selected ointment channel. The back suction action will not extend into the interior of the ointment channel 2, nor will it act on the channels of non-selected independent compartments, thereby reducing the risk of cross-mixing between different ointments and causing cross-contamination of flavors. The above back suction action is achieved by using the negative pressure principle through the reverse micro-return of the common working chamber 4.

[0041] The valve core assembly of the switching structure 3 is provided with at least one connecting hole, which is used to selectively connect an independent compartment of a paste compartment 2 when the valve core assembly is in different predetermined positions. The control mechanism of the switching structure 3 drives the valve core assembly to switch between multiple predetermined positions. In any predetermined position, the interface of the switching structure 3 is only aligned with the independent compartment in the corresponding paste compartment 2 and forms a fluid connection, so that the paste of the independent compartment enters the common outlet of the switching structure 3 through the valve body of the switching structure 3. The paste inlets of the other independent compartments are blocked by the solid part of the valve core assembly of the switching structure 3 and are in a blocked state. Thus, the structure limits that only one paste can be connected to the single paste outlet channel of the switching structure 3 at any given time.

[0042] The valve body connecting the switching structure 3 and the paste chamber 2 can be a rotary, linear sliding, or valve-controlled structure, specifically a structure that can switch between different positions.

[0043] Example 2

[0044] Please refer to Figure 3 As shown, the ointment container 2 includes: an integrated outer shell 21 and partitions 22. The integrated outer shell 21 is fixedly connected to the housing of the integrated machine 1, and multiple partitions 22 are fixedly connected to the inner wall of the integrated outer shell 21.

[0045] The ointment container 2 is a detachable, independent consumable component;

[0046] The outlet end of the paste container 2 is equipped with a one-way valve;

[0047] The bottom of the paste container 2 is provided with a sliding plate that can move axially along the container opening, and the sliding plate is sealed to the inner wall of the paste container 2.

[0048] Working principle: Multiple partitions 22 are fixedly installed in the integrated shell 21, which can divide the integrated shell 21 into multiple independent compartments. These independent compartments can individually hold toothpaste of different flavors. An opening is opened at the bottom of the independent compartment for individual communication with the switching structure 3. When the paste compartment 2 is in the installed position, the seal between the paste compartment 2 and the shell of the integrated machine 1 forms a sealed connection under axial compression. Each independent compartment has a rigid support plate, which can cooperate with the suction action of the common working chamber 4 to squeeze out the paste.

[0049] Example 3

[0050] Please refer to Figure 4 As shown, the switching structure 3 includes: a feed pipe 31, a control valve 32, and a connecting member 33. The inlet end of the connecting member 33 is fixedly connected to one end of the feed pipe 31, and the other end of the feed pipe 31 is fixedly connected to the outlet end of the control valve 32. The control valve 32 is used to control the discharge port of the paste chamber 2. The interface of the connecting member 33 is fixedly connected to the end of the common working chamber 4.

[0051] Working principle: The top of the rotating part of the switching structure 3 is provided with multiple feed pipes 31. The feed pipes 31 are used to connect with the paste chamber 2. At the same time, the control valve 32 can control the feed of the feed pipes 31 to prevent unselected paste from entering the interior of the connecting member 33 through the feed pipes 31, and also prevent the backflow of the back-suctioned paste. The connecting member 33 is connected to the common working chamber 4. The power generated by the movement of the plug in the common working chamber 4 can control whether the paste is squeezed out through the connecting member 33 or drawn back through the connecting member 33.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-flavor toothpaste dispensing device, comprising an integrated unit (1), characterized in that: The upper part of the housing of the integrated machine (1) is provided with a paste chamber (2), which contains multiple independent chambers. The outlet of the paste chamber (2) is fixedly connected to a switching structure (3) and communicates with it. The switching structure (3) has a valve core assembly that can switch the rotation angle between multiple predetermined positions. The switching structure (3) can communicate with only one of the paste chambers (2) at any predetermined position. The lower part of the switching structure (3) is provided with a common working chamber (4). The paste in the paste chamber (2) enters the common working chamber (4) through the switching structure and is transported to a single paste outlet channel. At any switching position, the common working chamber (4) communicates only with one of the paste chambers (2). An independent compartment is connected. The common working chamber (4) includes a cavity and a piston assembly disposed in the cavity and capable of reciprocating along the cavity axis. The piston assembly includes a plug and a piston drive connected thereto. The plug end of the common working chamber (4) is provided with an air intake channel and an air intake valve. During the reverse movement of the plug, the piston drive causes the common working chamber (4) to first connect with the outside through the air intake channel to form an air volume. Then the air intake valve is closed to form a closed suction state. An air section and a toothpaste section are formed in the common working chamber (4). The other end of the common working chamber (4) is connected with the toothpaste dispensing channel. The lower part of the housing of the all-in-one machine (1) is provided with a toothbrush trigger structure (5).

2. The multi-flavor toothpaste dispensing device according to claim 1, characterized in that: The ointment container (2) includes: an integrated shell (21) and partitions (22). The integrated shell (21) is fixedly connected to the shell of the integrated machine (1), and multiple partitions (22) are fixedly connected to the inner wall of the integrated shell (21).

3. The multi-flavor toothpaste dispensing device according to claim 1, characterized in that: The switching structure (3) includes: a feed pipe (31), a control valve (32), and a connecting member (33). The inlet end of the connecting member (33) is fixedly connected to one end of the feed pipe (31), and the other end of the feed pipe (31) is fixedly connected to the outlet end of the control valve (32). The control valve (32) is used to control the outlet of the paste chamber (2), and the interface of the connecting member (33) is fixedly connected to the inlet of the common working chamber (4).

4. The multi-flavor toothpaste dispensing device according to claim 1, characterized in that: The common working chamber (4) is the only working chamber in the lower part of the switching structure, and the plug of the common working chamber (4) is sealed to the inner wall of the chamber.

5. A multi-flavor toothpaste dispensing device according to claim 1, characterized in that: The piston drive unit is driven by a lead screw motor, which drives the piston block to move linearly along the axial direction.

6. A multi-flavor toothpaste dispensing device according to claim 1, characterized in that: The intake valve is used to control the connection and blockage between the intake channel and the outside world. The opening and closing of the intake valve is coordinated with the reciprocating motion of the plug. The intake valve realizes the connection and blockage of the intake channel by the relative position change between the valve core and the valve body.

7. A multi-flavor toothpaste dispensing device according to claim 1, characterized in that: The air segment and the toothpaste segment are distributed axially in the common working chamber (4), with the air segment located after the toothpaste segment during the forward movement of the plug.

8. A multi-flavor toothpaste dispensing device according to claim 1, characterized in that: The maximum volume change of the common working chamber (4) is greater than the internal volume of the ointment outlet channel.

9. A multi-flavor toothpaste dispensing device according to claim 1, characterized in that: The switching structure (3) is a rotary valve core structure or a sliding valve core structure.

10. A multi-flavor toothpaste dispensing device according to claim 1, characterized in that: The ointment container (2) is a detachable independent consumable component.

11. A multi-flavor toothpaste dispensing device according to claim 10, characterized in that: The outlet end of the paste container (2) is equipped with a one-way valve.

12. A multi-flavor toothpaste dispensing device according to claim 11, characterized in that: The bottom of the paste container (2) is provided with a sliding piece that can move axially along the container opening, and the sliding piece is sealed to the inner wall of the paste container (2).

13. A multi-flavor toothpaste dispensing device according to claim 1, characterized in that: The toothbrush triggering structure (5) has a U-shaped guide groove (51) at the bottom, which is used to limit the position and direction of the brush head. The toothbrush triggering structure (5) also has a trigger element (52) in the middle, which is a mechanical trigger element, a photoelectric sensor, or a capacitive sensor.

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