Toothpaste supply device

Abstract

The toothpaste supply device comprises a toothpaste container and a pump body assembly, the toothpaste container is provided with a toothpaste storage cavity used for storing toothpaste, the bottom of the toothpaste container is provided with a placement face, and the toothpaste container is vertically arranged through the placement face; the pump body assembly is arranged at the top of the toothpaste container, the pump body assembly comprises a pump body, a pressing part and a toothpaste outlet, at least part of the pump body is a soft rubber piece and is communicated with the toothpaste storage cavity and the toothpaste outlet, the pressing part and the pump body are separately arranged or are a part of the pump body, the toothpaste is discharged from the toothpaste outlet when the pressing part is linked with the pump body to deform, and the pressing part is provided with a pressing surface; wherein the area of the pressing face is not smaller than 350 mm < 2 >, and / or the size of the pressing face in the first direction is not smaller than 25 mm, and the first direction is perpendicular to the pressing direction of the pressing part. The larger pressing surface increases the contact area between the fingers or the palm and the pressing part, so that the pressing is more stable, and the toothpaste outlet stability of the toothpaste supply device is improved. At least part of the pump body is a soft rubber piece and can deform under the action of external force.

Description

Technical Field

[0001] This application relates to the technical field of oral care, and particularly to a toothpaste supply device. Background Art

[0002] Toothpaste supply devices are an indispensable part of daily necessities, and their designs and functions directly affect the user experience. Traditional toothpaste supply devices mainly include squeeze-type toothpaste tubes and pump-type toothpaste pumps. Although squeeze-type toothpaste tubes are simple and easy to use, there are problems such as toothpaste residue and difficulty in squeezing out completely. With the development of technology, pump-type toothpaste pumps have gradually become one of the mainstream products in the market. Pump-type toothpaste pumps generate a pressure difference by pressing the pump head to pump toothpaste out of the container, which has the advantages of convenience and hygiene in use.

[0003] In the related technology of pump-type toothpaste pumps, the toothpaste pump usually uses a relatively small pressing head with a limited pressing area. A smaller pressing area means that users need to apply a greater pressing force to generate enough pressure difference to push the toothpaste out. This not only makes it strenuous for users to use, especially for children and users with weaker hand strength, but also results in a poor user experience. Summary of the Invention

[0004] This application provides a toothpaste supply device that can reduce the pressing force required for users to use the toothpaste supply device.

[0005] An embodiment of this application provides a toothpaste supply device, including:

[0006] A toothpaste container having a paste storage cavity for storing toothpaste, the bottom of the toothpaste container having a placement surface, and the toothpaste container being vertically arranged through the placement surface; and

[0007] A pump body assembly provided on the top of the toothpaste container, including a pump body, a pressing part, and a paste outlet. At least part of the pump body is a soft rubber part and is in communication with both the paste storage cavity and the paste outlet. The pressing part is separately provided from the pump body or is a part of the pump body. When the pressing part drives the pump body to deform, toothpaste is discharged from the paste outlet, and the pressing part has a pressing surface;

[0008] wherein, the area of the pressing surface is not less than 350 mm 2 , and / or, the dimension of the pressing surface in a first direction is not less than 25 mm, and the first direction is perpendicular to the pressing direction of the pressing part.

[0009] By adopting the above technical solution, the toothpaste container is set upright, and the pump body assembly is arranged at the top of the toothpaste container, enabling the user to extrude the paste by pressing on the top. At the same time, by increasing the area of the pressing surface, the force required for the user to press is significantly reduced, and the larger pressing surface is easier to reach, making it easier for the user to find the pressing position and apply force. Moreover, the larger pressing surface increases the contact area between the finger or palm and the pressing part, making the pressing more stable, thus improving the stability of paste extrusion of the toothpaste supply device.

[0010] The dimension of the pressing surface in the first direction is not less than 25 mm, and the first direction is perpendicular to the pressing direction of the pressing part. The larger pressing surface (with a dimension not less than 25 mm in the first direction perpendicular to the pressing direction) provides a larger force-bearing area. This means that when the user presses, the force can be more evenly distributed, reducing the pressure on the fingertips or palm, thereby improving the comfort of pressing and avoiding discomfort or pain caused by long-term use. Moreover, the larger pressing surface increases the contact area between the finger or palm and the pressing part, increasing the friction force, making the pressing process more stable and not prone to slipping or getting out of control.

[0011] At least part of the pump body is a soft rubber part, which has good elasticity and flexibility, can deform under the action of external force, and return to its original state after the external force is removed. When the user presses the toothpaste supply device, the soft rubber part can provide a soft touch, reducing the discomfort during pressing. And after the external force is removed, the soft rubber part can return to its original state, driving the pressing part to return to its original position to prepare for the next pressing.

[0012] The hardness of the pressing part is less than or equal to the hardness of the soft rubber part of the pump body, making the user feel more comfortable when pressing, reducing the pressure on the fingers. The soft pressing part can better fit the shape of the fingers, disperse the pressure, and avoid local discomfort caused by force, which is especially friendly to children or users with weaker hand strength.

[0013] The deformation of the pressing part will be preferentially transmitted to the pump body (rather than excessive deformation of itself), that is, the pressing force is efficiently converted into the deformation energy of the pump body, rather than being absorbed or dispersed by the pressing part itself, so as to more efficiently drive the deformation of the soft rubber part inside the pump body and achieve stable paste extrusion. If the pressing part is too hard (such as hard plastic), it may cause insufficient deformation of the soft rubber part of the pump body and unstable paste output.

[0014] Optionally, at least part of the pressing surface is an arc surface or a flat surface.

[0015] By adopting the above technical solution, at least part of the pressing surface being a plane can guide the user to press correctly, provide a stable pressing experience, reduce shaking during pressing, and is suitable for scenarios where precise control of the pressing force is required. And the pressing surface with at least part being an arc surface design can be configured to better fit the natural bending shape of the human finger, and the arc surface can also increase the contact area between the finger and the pressing surface, thereby reducing the pressing force and difficulty.

[0016] Optionally, the distance from the outer edge of the vertical projection of the pressing surface on the toothpaste container to the outer edge of the cross-section of the toothpaste container is not greater than 10 mm;

[0017] And / or, the ratio of the area of the vertical projection of the pressing surface on the toothpaste container to the cross-sectional area of the toothpaste container is not less than 0.8 and not greater than 1.2.

[0018] By adopting the above technical solution, the distance between the edge of the pressing surface and the edge of the toothpaste container is relatively close, so the overall structure of the toothpaste supply device is more compact, saving space, and when the user presses, the hand can be placed on the pressing surface, reducing the occurrence of slipping during pressing. Controlling the ratio between 0.8 and 1.2 ensures the stability and efficiency of pressing, and also avoids the pressing surface being too large or too small. Since the area of the pressing surface is nearly equal to the cross-sectional area of the toothpaste container, it is easy to operate, suitable for blind pressing by the user's palm, and the user can apply pressure more evenly during operation, reducing the situation of unsmooth paste discharge or unstable paste discharge amount caused by uneven pressing.

[0019] Optionally, the pressing part is a soft rubber part.

[0020] By adopting the above technical solution, the pressing part has good elasticity and flexibility, and the user feels comfortable when pressing.

[0021] Optionally, the pressing part is connected to the toothpaste container and covers the outside of the pump body.

[0022] By adopting the above technical solution, it can effectively prevent pollutants such as dust and bacteria from entering the inside of the pump body and maintain the hygiene of the toothpaste. Reducing the direct contact between the pump body and the external environment reduces the possibility of the toothpaste being contaminated and ensures the hygiene of the toothpaste. The pressing part covers the outside of the pump body and is connected to the toothpaste container, which can provide a larger pressing area. This enables the user to apply force more easily when pressing and reduces the inconvenience caused by too small a pressing area.

[0023] Through the covering design, the volume of the pump body can be appropriately reduced. The relatively small pump body can squeeze out a relatively small amount of toothpaste during a single press, which helps to avoid children squeezing out too much toothpaste at one time and causing waste. At the same time, this design is also applicable to adult users, enabling better control of the toothpaste usage amount and meeting the needs of different users.

[0024] Optionally, the pressing part is at least partially spaced from the pump body.

[0025] By adopting the above technical solution, the space between the pressing part and the pump body provides necessary deformation space for the pump body. During the pressing process, the pump body can deform freely within this space, thereby reducing the difficulty of deformation of the pump body. This design enables the pump body to complete the deformation more smoothly when subjected to the pressing force, reducing the risk of damage caused by excessive extrusion. Since the pump body can deform more smoothly during the pressing process, the paste can be pumped out more easily.

[0026] Optionally, the pressing part is in contact with the pump body, or the distance between the pressing part and the pump body is not greater than 3 mm.

[0027] By adopting the above technical solution, the close contact or short distance setting between the pressing part and the pump body enables the pressing force applied by the user to the pressing part to be transmitted more directly to the pump body. This design reduces the pressing stroke, allowing the user to trigger the deformation of the pump body more quickly when pressing, thereby squeezing out the toothpaste more efficiently. By reducing the pressing stroke, the user can operate more easily during use, reducing the force required for pressing, especially suitable for users with less strength, such as children or the elderly.

[0028] Optionally, the pump body assembly further includes:

[0029] A rigid connecting part connected between the pressing part and the pump body.

[0030] By adopting the above technical solution, the function of the rigid connecting part is to fix the pressing part on the pump body, prevent it from falling off or shifting, and ensure the sealing between the two. Through the cooperation of the engaging part and the rigid connecting part, a more tight and stable connection is formed between the pressing part and the pump body, which can prevent the pressing part from accidentally falling off or shifting during use, ensuring the reliability and service life of the toothpaste supply device.

[0031] Optionally, the pressing part includes an elastic outer cover and convex ribs:

[0032] The convex ribs are arranged on the inner wall surface of the elastic outer cover.

[0033] By adopting the above technical solution, the design of the convex ribs can increase the elastic deformation range of the elastic outer cover, enabling the pressing part to return to the initial state more effectively after being subjected to an external force. This design is similar to introducing pre-strain in the material. Through the action of the convex ribs, the material can better maintain its elastic properties after deformation, thereby enhancing the overall recovery deformation ability.

[0034] Optionally, the convex ribs include:

[0035] The first convex ribs are convexly provided on the inner wall surface of the elastic outer cover. Some of the first convex ribs extend in the second direction, and the rest of the first convex ribs extend in the third direction, where the third direction is perpendicular to the second direction; and / or

[0036] The second convex ribs are convexly provided on the inner wall surface of the elastic outer cover and extend along the circumferential direction of the pressing portion. The second convex ribs are connected to the bottom ends of the first convex ribs.

[0037] By adopting the above technical solution, the first convex ribs intersect on the inner wall surface of the elastic outer cover to form an intersecting grid-like structure. Understandably, the elastic outer cover provided with the first convex ribs forms a more solid framework structure, which can better resist the squeezing force and twisting force from all directions, enabling the elastic outer cover to resume flatness after being subjected to external forces and improving the service life of the toothpaste supply device. The second convex ribs are connected to the bottom ends of the first convex ribs. The second convex ribs can provide support for the first convex ribs. The design of mutual support can disperse and bear the force applied externally to the first convex ribs, avoid stress concentration, increase the overall stability of the pressing portion, and ensure that the pressing portion remains in the correct position during the pressing process.

[0038] Optionally, it further includes:

[0039] An intermediate connector, through which the pump body assembly is connected to the toothpaste container.

[0040] By adopting the above technical solution, the intermediate connector plays the role of a bridge. Through the intermediate connector, the stability and connection strength of the toothpaste supply device can be enhanced, and at the same time, better sealing performance can be provided.

[0041] Optionally, the intermediate connector includes a convex portion that protrudes from the outer peripheral surface of the toothpaste container. The convex portion is annularly arranged and surrounds the outer periphery of the toothpaste container; and / or,

[0042] The top surface of the intermediate connector is planar or arc-shaped.

[0043] By adopting the above technical solution, the convex portion can form a tight fit with the outer peripheral surface of the toothpaste container, preventing the intermediate connecting member from loosening or shifting during use. The top surface of the intermediate connecting member is flat, facilitating connection and installation with other components. Especially when it needs to cooperate with other flat structures, it can ensure good contact and stability. Moreover, when the flat connection structure is stressed, the stress distribution is relatively uniform, which can improve the reliability and stability of the connection. If the top surface of the intermediate connecting member is arc-shaped, since both the top surface of the intermediate connecting member and the pressing portion can serve as the acting surfaces for the user to apply pressure, the arc design can better conform to the natural curve of the user's hand, making the pressing action more natural and comfortable. And the arc design can make the transition between the intermediate connecting member and the pressing portion more natural, forming an integrated visual effect and enhancing the overall sense of the product.

[0044] Optionally, the intermediate connecting member further has a storage cavity, the storage cavity is located between the pump body and the toothpaste container, and the storage cavity communicates with the pump body and the paste storage cavity. The pump body assembly further includes:

[0045] A one-way valve in the cavity, disposed in the storage cavity, and the opening direction of the one-way valve in the cavity is from the paste storage cavity to the storage cavity.

[0046] By adopting the above technical solution, the one-way valve in the cavity can prevent the toothpaste from flowing back from the storage cavity to the paste storage cavity, reducing the risk of bacterial growth and contamination and ensuring the hygiene of the toothpaste during use.

[0047] Optionally, the intermediate connecting member includes a convex portion protruding relative to the outer peripheral surface of the toothpaste container, and the paste outlet is located on the convex portion.

[0048] By adopting the above technical solution, since the convex portion protrudes from the outer periphery of the toothpaste container and the paste outlet is provided on the convex portion, that is, there is a certain interval from the toothpaste container, it can avoid interference between the paste outlet and the toothpaste container, making the toothpaste extruded from the paste outlet more hygienic. When the user uses it, they can more conveniently access the paste outlet without being blocked by the main body portion of the toothpaste container. This design improves the usability of the toothpaste supply device.

[0049] Optionally, the intermediate connecting member includes:

[0050] A top wall having an installation opening, and the pump body penetrates into the intermediate connecting member through the installation opening;

[0051] A bottom wall, opposite to and spaced from the top wall; and

[0052] A peripheral side wall, connected between the top wall and the bottom wall;

[0053] Wherein, the paste outlet is located on the top wall or the bottom wall or the peripheral side wall.

[0054] By adopting the above technical solution, the paste outlet is located at the top of the middle connector and on the upper surface of the middle connector without obstruction, making the position of the paste outlet prominent and easy for users to identify and take the toothpaste. When the paste outlet is located on the bottom wall, the toothpaste will naturally fall after being extruded from the paste outlet, reducing the situation of toothpaste remaining on the outer wall of the middle connector. When the paste outlet is located on the peripheral side wall, it is more obvious compared with the way that the paste outlet is arranged at the bottom, and it can prevent users from directly touching the paste outlet when pressing the pressing part.

[0055] Optionally, the paste outlet is located at the connection between the bottom wall and the peripheral side wall, and the paste outlet is spaced from the outer peripheral surface of the toothpaste container.

[0056] By adopting the above technical solution, on the one hand, it can effectively prevent users' fingers from accidentally touching the paste outlet when pressing the pressing part, thus keeping the paste outlet clean and avoiding the contamination of the toothpaste by the dirt on the fingers. On the other hand, the paste outlet at the lower side utilizes the action of gravity, making the extruded toothpaste fall naturally downward and not easily remaining on the wall of the paste outlet. This is not only convenient for users to take but also reduces the waste of toothpaste. It ensures that the paste outlet does not closely adhere to the outer wall of the toothpaste container, providing a certain space for placing the toothbrush head, without interfering with the outer wall of the toothpaste container, and also avoiding the paste directly contacting the outer wall of the container when being extruded, thus keeping the appearance of the toothpaste container clean.

[0057] Optionally, in the radial direction of the toothpaste container, the distance between the paste outlet and the outer peripheral surface of the toothpaste container in the radial direction is not less than 10 mm and not more than 30 mm.

[0058] By adopting the above technical solution, the user's toothbrush head can be conveniently placed near the paste outlet without interfering with the outer peripheral surface of the toothpaste container. Reducing the contact between the toothbrush head and the outer peripheral surface of the toothpaste container can lower the pollution risk and ensure the hygiene of the toothpaste during use.

[0059] Optionally, the paste outlet is inclined downward, and the angle between the central axis of the paste outlet and the horizontal plane is not less than 15 degrees and not more than 75 degrees.

[0060] By adopting the above technical solution, if the included angle between the central axis of the paste outlet and the horizontal plane is less than 15 degrees, the paste outlet is too close to the horizontal direction, and splashing may occur around during extrusion, resulting in inconvenient use and waste. When the included angle is too large (greater than 75 degrees), the paste outlet is too vertically downward, and the paste may be extruded too quickly under the action of gravity and pressure, and the user may not have time to accurately receive the toothpaste on the toothbrush, resulting in waste and pollution. Moreover, if the paste outlet is too vertical, a relatively large bending angle may be required inside the paste outlet pipe between the pump body and the paste outlet. This will cause resistance to the flow of the paste, and it is easy to accumulate at the bending part, and blockage may occur after long-term use.

[0061] Optionally, the pump body assembly further includes a paste outlet pipe, and the paste outlet pipe includes:

[0062] A pipe body, connected to and communicating with the pump body; and

[0063] A paste outlet check valve, connected to one end of the pipe body away from the pump body, and having the paste outlet.

[0064] By adopting the above technical solution, the paste outlet check valve can enable the paste to flow out of the pipe body from the paste outlet, while preventing the toothpaste from flowing back into the pipe body from the paste outlet, reducing the possibility of external pollutants flowing into the pipe body through the paste outlet, and further enhancing the hygiene of the product.

[0065] Optionally, the bottom of the pressing part has an avoidance notch for avoiding the paste outlet pipe.

[0066] By adopting the above technical solution, the existence of the avoidance notch enables the pressing part not to interfere with or rub against the paste outlet pipe when it is covered, so as to ensure that the paste can be smoothly extruded from the paste outlet pipe and will not cause difficult or interrupted paste extrusion due to the extrusion of the pressing part. And during the assembly process, due to the existence of the avoidance notch, the paste outlet pipe can be more easily passed through the pressing part, simplifying the assembly steps.

[0067] Optionally, the top end of the toothpaste container has an opening communicating with the paste storage cavity, and the bottom of the toothpaste container has an air pressure balance hole; the pump body assembly further includes:

[0068] A check valve inside the pump, arranged inside the pump body, and the opening direction of the check valve inside the pump is from the paste storage cavity to the inside of the pump body; and a piston, slidably connected to the toothpaste container and located inside the paste storage cavity, the opening is on one side of the piston, and the air pressure balance hole is on the other side of the piston.

[0069] By adopting the above technical solution, the air pressure balance hole at the bottom of the toothpaste container allows external air to enter or exit, maintaining the air pressure balance inside and outside the container. This helps to avoid problems such as difficult pumping or smooth extrusion of toothpaste caused by air pressure differences. The opening direction of the one-way valve in the pump is from the paste storage cavity to the pump body, ensuring that the toothpaste can only flow from the paste storage cavity to the pump body and will not flow in the reverse direction. The piston is arranged to ensure that the toothpaste in the paste storage cavity is stably replenished into the pump cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0071] Figure 1 Structural schematic diagram of a toothpaste supply device in an embodiment of the present application;

[0072] Figure 2 Structural schematic diagram of a toothpaste supply device in another embodiment of the present application;

[0073] Figure 3 Exploded schematic diagram of a toothpaste supply device in an embodiment of the present application;

[0074] Figure 4 Another perspective exploded schematic diagram of a toothpaste supply device in an embodiment of the present application;

[0075] Figure 5 For Figure 1 Another perspective structural schematic diagram of the toothpaste supply device in;

[0076] Figure 6 For Figure 5 Cross-sectional view of the toothpaste supply device in along the A-A section;

[0077] Figure 7 Partial structural cross-sectional view of a toothpaste supply device in an embodiment of the present application;

[0078] Figure 8 Structural schematic diagram of a pressing part in an embodiment of the present application;

[0079] Figure 9 For Figure 8 Cross-sectional view of the pressing part in along the B-B section;

[0080] Figure 10 Structural schematic diagram of a toothpaste supply device in yet another embodiment of the present application;

[0081] Figure 11 Schematic structural diagram of an intermediate connector in an embodiment of the present application;

[0082] Figure 12 is Figure 11 Schematic cross-sectional view of the intermediate connector in [reference] along the C-C section;

[0083] Figure 13 Schematic structural diagram of a piston in an embodiment of the present application;

[0084] Figure 14 is Figure 13 Schematic cross-sectional view of the piston in [reference] along the D-D section;

[0085] Figure 15 Schematic structural diagram of a pump body and a paste outlet pipe in an embodiment of the present application.

[0086] Explanation of reference numerals:

[0087] 100, toothpaste supply device; 10, toothpaste container; 10a, paste storage cavity; 10b, opening; 10c, air pressure balance hole; 20, piston; 21, main body part; 211, main board; 212, first step ring; 2121, first connection part; 2122, first upward extension part; 213, second step ring; 2131, second connection part; 2132, second upward extension part; 22, first surrounding ring; 23, second surrounding ring; 30, pump body assembly; 31, pump body; 31a, pump cavity; 31b, temporary storage cavity; 311, elastic section; 3111, corrugated structure; 312, paste outlet section; 313, fitting part; 314, buckling part; 315, socket part; 32, paste outlet pipe; 32a, paste outlet; 321, pipe body; 322, paste outlet check valve; 33, pressing part; 33a, avoidance notch; 33b, annular clamping groove; 331, elastic outer cover; 332, rib; 3321, first rib; 3321a, clamping groove; 3322, second rib; 3323, third rib; 34, rigid connection part; 40, check valve inside the pump; 50, check valve inside the cavity; 60, intermediate connector; 60a, extending port; 61, top wall; 61a, installation opening; 62, bottom wall; 62a, communication port; 62b, annular avoidance groove; 62a1, inner groove wall; 62a2, outer groove wall; 63, peripheral side wall; 64, annular protrusion; 641, limiting part; 65, installation sink; 66, limiting protrusion; 70, fixing part; 71, first fixing part; 72, second fixing part. Detailed implementation manners

[0088] To make the objectives, technical solutions and advantages of this application clearer, the following further elaborates on this application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely used to explain this application and are not intended to limit this application.

[0089] Please refer to Figure 1 and Figure 2 , an embodiment of this application relates to a toothpaste supply device 100, and the toothpaste supply device 100 is a device for storing and dispensing toothpaste.

[0090] As Figures 1-3 , the toothpaste supply device 100 includes a toothpaste container 10 and a pump body assembly 30. The toothpaste container 10 is the main part of the toothpaste supply device 100. The bottom of the toothpaste container 10 has a placement surface, and the toothpaste container is vertically arranged through the placement surface. When in use, the user can vertically arrange the toothpaste supply device 100 on the tabletop. When the user performs a pressing action to squeeze out the toothpaste, the pump body assembly 30 can be pressed vertically from top to bottom. Since the placement surface of the toothpaste container 10 is placed on the fixed tabletop, the toothpaste supply device 100 will not move relatively in the pressing direction, which simplifies the operation difficulty of the user. At the same time, this method is more in line with the user's usage habits and is more convenient for the user to use.

[0091] It can be understood that the outer shape of the toothpaste container 10 can be a cylinder, a cuboid, a cone or other irregular shapes. The toothpaste container 10 has a paste storage cavity 10a for storing toothpaste, and the volume of the paste storage cavity 10a can be set according to actual needs, such as 60 ml - 150 ml.

[0092] Please continue to refer to Figures 1-3 , the pump body assembly 30 is connected to the toothpaste container 10. The pump body assembly 30 is arranged on the top of the toothpaste container 10. Part of the pump body assembly 30 is installed inside the toothpaste container 10 and part of it is exposed above the toothpaste container 10. The pump body assembly 30 is used to pump out the toothpaste in the paste storage cavity 10a. The pump body assembly 30 can be fixedly connected to the toothpaste container 10 by means of threaded connection, snap connection or other connection methods to ensure the firmness and tightness of the connection.

[0093] The pump body assembly 30 includes a pump body 31, a pressing part 33 and a paste outlet 32a. The pump body 31 is connected to the toothpaste container 10. The pump body 31 has a pump cavity 31a (as Figure 6 ), and part of the toothpaste paste is stored in the pump cavity 31a. The paste outlet 32a can be located on the circumferential direction of the outer wall of the toothpaste supply device 100, which is convenient for the user to hold the toothbrush to receive the toothpaste at the paste outlet 32a. The pump cavity 31a is communicated with both the paste storage cavity 10a and the paste outlet 32a. It can be understood that the toothpaste can flow from the paste storage cavity 10a into the pump cavity 31a and is squeezed out through the paste outlet 32a after the pump cavity 31a is externally pressed.

[0094] Among them, the pressing part 33 can be separately arranged from the pump body 31 or be a part of the pump body 31. In one setting form, the separate connection design enables more convenient repair or replacement when the pressing part 33 is damaged, without the need to replace the entire pump body 31.

[0095] In another setting form, the pressing part 33 is a part of the pump body 31. The pressing part 33 can be the part of the pump body 31 that faces away from the toothpaste container 10, that is, a part of the pump body 31 is configured to form the pressing part 33. The pressing part 33 and the pump body 31 can be integrally formed using the same material, which can ensure the material compatibility and structural stability between the two. Commonly used materials include rubber materials, which have good elasticity and wear resistance. In the molding process, methods such as injection molding and extrusion molding can be used to ensure a tight connection between the pressing part 33 and the pump body 31, without the risk of delamination or fracture. Making the pressing part 33 directly integrated with the pump body 31 reduces the number of components, simplifies the structure, and reduces the manufacturing cost.

[0096] And the hardness of the pressing part 33 is less than or equal to the hardness of the soft rubber part of the pump body 31. The pressing part 33 with a lower hardness feels softer during operation, is more comfortable to use, and reduces the pressure on the fingers. The soft pressing part 33 can better conform to the shape of the fingers, disperse the pressure, and avoid local discomfort due to force. It is especially more user-friendly for children or users with weaker hand strength. When the user squeezes the pump body 31, the pressing part 33 can provide a certain buffer to reduce the discomfort during operation.

[0097] It should be noted that the deformation of the pressing part 33 will be preferentially transmitted to the pump body 31 (rather than excessive self-deformation), that is, the pressing force is efficiently converted into the deformation energy of the pump body 31, rather than being absorbed or dispersed by the pressing part 33 itself, so as to more efficiently drive the deformation of the soft rubber part inside the pump body 31 and achieve stable paste output. If the pressing part 33 is too hard (such as hard plastic), it may cause insufficient deformation of the soft rubber part of the pump body 31 and unstable paste output.

[0098] The toothpaste container 10 can be a cylindrical container. Understandably, the flat part of the cylinder is used to place on the tabletop, so that the toothpaste container 10 is not easily toppled during use, and the side wall has a smooth transition without sharp corners or protrusions, reducing the risk of the user being scratched by contacting the sharp corners during use. The toothpaste container 10 can be vertically placed upright on the tabletop, and the pressing part 33 is arranged at one end in the axial direction of the toothpaste container 10, specifically located at the top of the toothpaste container 10, that is, on the side away from the tabletop. So that the user can directly contact the pressing part 33 for operation during use.

[0099] When the pressing part 33 is subjected to an external force, the pressing part 33 can be linked to deform the pump body 31 to discharge paste from the paste outlet 32a. The pressing part 33 has a pressing surface, and the pressing surface is configured to be pressed so that the toothpaste in the paste storage cavity 10a is pumped out. The user only needs to press the pressing surface of the pressing part 33 to link the deformation of the pump body 31 to pump the toothpaste out of the paste outlet 32a, without manually squeezing the toothpaste tube like traditional toothpaste, making it more convenient and faster to use. Moreover, by controlling the paste discharge through the pressing action of the pressing part 33, the extrusion amount of the toothpaste can be more accurately controlled according to the pressing force, avoiding the waste of toothpaste caused by excessive extrusion of traditional toothpaste.

[0100] If the toothpaste supply device 100 is placed vertically on the tabletop, the pressing surface of the pressing part 33 can be configured to be arranged above the toothpaste container 10, and the user can directly apply pressure to the pressing part 33 from top to bottom; if the toothpaste supply device 100 is hung on the wall, the pressing surface of the pressing part 33 can be configured to be arranged on the side of the toothpaste container 10, on the side facing the user, and the user can directly apply pressure to the pressing part 33 in the direction of the wall body.

[0101] At least part of the pump body 31 is a soft rubber part, such as silicone or thermoplastic elastomer. The soft rubber part has good elasticity and flexibility, can deform under the action of an external force, and can return to its original state after the external force is removed. When the user presses the toothpaste supply device 100, the soft rubber part can provide a soft touch and reduce the discomfort during pressing. And after the external force is removed, the soft rubber part can return to its original state and link the pressing part 33 to return to its original position to prepare for the next pressing.

[0102] The design that at least part of the pump body 31 is a soft rubber part enables the user to more easily deform the pump body 31 when pressing, so as to pump the toothpaste in the pump cavity 31a out. This design reduces the force required for the user to press compared to the pump body 31 made entirely of hard materials, and is especially suitable for users with less strength, such as children or the elderly, making it more convenient to use.

[0103] In a setting form, the area of the pressing surface of the pressing part 33 is not less than 350 mm 2 That is, the area of the pressing surface itself (i.e., the surface area directly used for pressing) is at least 350 square millimeters. By increasing the area of the pressing surface, the force required for the user to press is significantly reduced. This makes it easier for the user to use, especially for children and users with weak hand strength, greatly improving the use experience. Understandably, the larger pressing surface can generate a more uniform air pressure difference, enabling the toothpaste to be pumped out of the paste storage cavity 10a more smoothly, reducing the problems of uneven discharge and toothpaste residue.

[0104] Moreover, a larger pressing surface is easier to be touched, and it is easier for the user to find the pressing position and apply force. Also, the larger pressing surface increases the contact area between the finger or palm and the pressing part 33, making the pressing more stable, thereby improving the stability of the toothpaste supply of the toothpaste supply device 100.

[0105] If the pressing surface is less than 350 square millimeters, the smaller pressing area means that the user needs to apply greater force to generate sufficient pressure to pump out the toothpaste. This may cause the user to feel strenuous during use, especially for children, the elderly, or users with weaker hand strength. The smaller pressing area requires the user to be more precise when pressing, otherwise it may lead to uneven pressing or ineffective pumping of the toothpaste, which also increases the difficulty of use.

[0106] In another setting form, the size of the pressing surface in the first direction is not less than 25 mm, and the first direction is perpendicular to the pressing direction of the pressing part 33. The larger pressing surface (with a size not less than 25 mm in the first direction perpendicular to the pressing direction) provides a larger force-bearing area. This means that when the user presses, the force can be more evenly distributed, reducing the pressure on the fingertips or palm, thereby improving the comfort of pressing and avoiding discomfort or pain caused by long-term use. Also, the larger pressing surface increases the contact area between the finger or palm and the pressing part 33, increasing the friction force, making the pressing process more stable and not easily slipping or getting out of control.

[0107] For example, in one embodiment, the user presses to extrude the toothpaste in a top-down manner. At this time, the pressing direction is vertically downward. Then the vertical direction is the horizontal direction. It is specified that the size of the pressing surface in the vertical direction is not less than 25 mm, which means that the width or length of the pressing surface in the horizontal direction (or other directions perpendicular to the pressing direction) is at least. Since the hand shapes of different users are different, it is specified that the size of the pressing surface in the horizontal direction is not less than, which is convenient for the user to perform blind pressing with the palm.

[0108] In yet another setting form, the area of the pressing surface is not less than 350 mm 2 , and the size of the pressing surface in the first direction is not less than 25 mm, and the first direction is perpendicular to the pressing direction of the pressing part 33, which can achieve the optimized effects in the above two settings and will not be elaborated here.

[0109] Such as Figure 3 and Figure 4As shown, in order to make the pump body 31 recover quickly after being squeezed by external force, in some embodiments, a pleated structure 3111 is provided on the peripheral wall of the pump body 31, and the pleated structure 3111 includes at least one of a sawtooth pleated structure 3111 and a wavy pleated structure 3111. When squeezed by external force, the stress will be distributed along the edge of the sawtooth. This structure makes the stress concentrate at the tip and edge of the pleats, and when the external force is removed, the pleated structure 3111 can recover to its original shape through its elastic deformation. This is because the geometric shape of the sawtooth pleated structure 3111 allows the material to undergo elastic deformation when subjected to force, and after the external force is removed, the material can recover to its initial state through elastic restoring force. The wavy pleated structure 3111, through its wavy geometric shape, when squeezed by external force, the stress will be distributed along the undulation of the wave. The periodicity and symmetry of the wavy pleats enable the stress and strain to be evenly distributed during the force and recovery process, reducing the fatigue and damage of the material. The pump body 31 and the pressing part 33 are reset in conjunction with each other to prepare for the next pressing by the user.

[0110] In other embodiments, the pump assembly 30 further includes an elastic member, which can be sleeved on the outer periphery of the pump body 31, or arranged in the pump cavity 31a, or embedded in the pump body 31. The elastic member is specifically a spring member, and elastic elements such as spring members have significant elastic recovery ability. Under the action of external force, the spring member can undergo elastic deformation, and when the external force is removed, the spring member can quickly return to its initial state. This allows the pump body 31 to quickly return to its original state after being subjected to external forces such as pressing, so as to be ready for the next use.

[0111] In order to provide a softer touch when the user presses, in some embodiments, the pressing portion 33 is a soft rubber part, such as food-grade silicone, which has good elasticity and flexibility, and the user feels comfortable when pressing. The user can operate in a variety of ways, such as pinching, squeezing, etc., rather than simply pressing. This design increases the flexibility of operation and is particularly suitable for users with different usage habits. For example, the user can press from different angles with his fingers, or squeeze by holding the pressing surface to squeeze, thereby squeezing out the toothpaste. This design increases the flexibility and convenience of use, and is particularly suitable for users with different usage habits.

[0112] In some embodiments, at least a portion of the pressing surface is an arc surface or a flat surface. The at least partial flat surface of the pressing surface can guide the user to press correctly, provide a stable pressing experience, reduce shaking during pressing, and is suitable for scenarios where precise control of the pressing force is required. The pressing surface with at least a portion designed as an arc surface can be configured to better conform to the natural curvature of the human finger, and the arc surface can also increase the contact area between the finger and the pressing surface, thereby reducing the pressing force and difficulty. It should be noted that the arc surface setting includes a pressing surface with a hemispherical surface setting and a pressing surface with a spherical surface setting. For example, the pressing surface can be a hemispherical surface arched away from the toothpaste container 10. And the setting with at least a portion being an arc surface allows the user to press from multiple directions, providing greater operational flexibility.

[0113] In one setting form, the distance from the outer edge of the vertical projection of the pressing surface on the toothpaste container 10 to the outer edge of the cross-section of the toothpaste container 10 is not greater than 10 mm, such that the distance between the edge of the pressing surface and the edge of the toothpaste container 10 is relatively close. Then, the overall structure of the toothpaste supply device 100 is relatively compact, saving space, and when the user presses, the hand can be placed on the pressing surface, reducing the occurrence of slipping during pressing.

[0114] When the user's hand presses on the edge position of the pressing surface, this design can effectively prevent the toothpaste container 10 from slipping or tipping over, further enhancing the use safety.

[0115] In another setting form, the ratio of the area of the vertical projection of the pressing surface on the toothpaste container 10 to the cross-sectional area of the toothpaste container 10 is not less than 0.8 and not greater than 1.2, ensuring the stability and efficiency of pressing, and avoiding the pressing surface being too large or too small. Since the area of the pressing surface is nearly equal to the cross-sectional area of the toothpaste container 10, it is easy to operate, suitable for the user to blindly press with the palm. When the user operates, pressure can be applied more evenly, reducing the situation of uneven paste discharge or unstable paste discharge amount caused by uneven pressing.

[0116] If the ratio of the area of the vertical projection of the pressing surface on the toothpaste container 10 to the cross-sectional area of the toothpaste container 10 is less than 0.8, the pressing surface is relatively small, and the user needs to align with the pressing surface when pressing. If the ratio of the area of the vertical projection of the pressing surface on the toothpaste container 10 to the cross-sectional area of the toothpaste container 10 is greater than..., it will cause the overall appearance of the toothpaste supply device 100 to be unbalanced, and the user is prone to sliding when pressing, resulting in uneven pressing or ineffective pumping of toothpaste. Therefore, controlling the ratio between... and... can ensure the stability of pressing and the uniformity of paste discharge while guaranteeing the operational convenience.

[0117] In some embodiments, the distance from the outer edge of the vertical projection of the pressing surface on the toothpaste container 10 to the outer edge of the cross-section of the toothpaste container 10 is no more than 10 mm, and the ratio of the area of ​​the vertical projection of the pressing surface on the toothpaste container 10 to the cross-sectional area of ​​the toothpaste container 10 is no less than 0.8 and no more than 1.2. This combines the advantages of the above two designs, ensuring the compactness of the overall structure and the convenience of operation, as well as the adaptability of the pressing area and the uniformity of the paste output.

[0118] In order to further enable the toothpaste container 10 to be placed stably on the table, in some embodiments, an anti-skid structure is provided at the bottom of the toothpaste container 10. The anti-skid structure may be an anti-skid pattern or an anti-skid protrusion provided at the bottom of the toothpaste container 10, or an anti-skid pad is added to the bottom of the toothpaste container 10. The anti-skid structure can increase the friction between the toothpaste container 10 and the table, reduce the possibility of sliding, and make the toothpaste supply device 100 more stable during use and not easy to tip over.

[0119] like Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the toothpaste supply device 100 further has a temporary storage chamber 31b, the pump body 31 has a pump chamber 31a, the temporary storage chamber 31b is located between the paste storage chamber 10a and the pump chamber 31a, the pump chamber 31a can be connected with the paste storage chamber 10a through the temporary storage chamber 31b in turn, the temporary storage chamber 31b is a smaller cavity relative to the paste storage chamber 10a, the toothpaste in the temporary storage chamber 31b can respond quickly and enter the pump chamber 31a, to ensure the continuous supply of toothpaste when pressed multiple times.

[0120] In some embodiments, the pump body assembly 30 also includes an in-pump one-way valve 40, which is disposed in the pump body 31. The opening direction of the in-pump one-way valve 40 is from the paste storage chamber 10a to the pump body 31, that is, it only allows toothpaste to flow from the temporary storage chamber 31b into the pump chamber 31a, preventing the toothpaste from flowing back into the temporary storage chamber 31b.

[0121] In some embodiments, the pump assembly 30 further includes a piston 20, which is slidably connected to the toothpaste container 10 and is located in the paste storage chamber 10a, and is sealed with the cavity wall of the paste storage chamber 10a. Part of the piston 20 forms the cavity bottom wall 62 of the paste storage chamber 10a. It can be understood that the piston 20 moves up and down in the paste storage chamber 10a to form a dynamic seal, thereby effectively promoting the flow of toothpaste. The piston 20 is usually made of an elastic material (such as silicone or rubber) to ensure that it can fit closely to the inner wall of the paste storage chamber 10a to form a good seal.

[0122] Please continue reading Figure 4 , Figure 5 and Figure 6, specifically, the one-way valve 40 inside the pump is a duckbill valve, whose vertical cross-section is in an inverted "V" shape structure, connected inside the pump body 31. Below is the temporary storage cavity 31b, and above is the pump cavity 31a. The opening 10b part of the duckbill valve is arranged facing the side of the pump cavity 31a, and it plays a key role in one-way diversion. When the toothpaste in the pump cavity 31a attempts to flow back into the temporary storage cavity 31b in the reverse direction, the opening 10b part of the duckbill valve is in a closed state to prevent this flow, ensuring that the toothpaste can only flow in one direction. When the piston 20 in the paste storage cavity 10a moves towards the side of the one-way valve 40 inside the pump, the pressure increases, and the opening 10b part of the duckbill valve opens, allowing the toothpaste to flow from the temporary storage cavity 31b into the pump cavity 31a. After the pressure stabilizes, the opening 10b part of the duckbill valve returns to its initial state and closes again, preventing the toothpaste in the pump cavity 31a from flowing back into the temporary storage cavity 31b.

[0123] Please continue to refer to Figure 4 , Figure 5 and Figure 6 , in some embodiments, the pump body assembly 30 further includes an in-cavity one-way valve 50, which is arranged in the temporary storage cavity 31b. The opening direction of the in-cavity one-way valve 50 is from the paste storage cavity 10a to the temporary storage cavity 31b, that is, it can block the toothpaste from flowing back from the temporary storage cavity 31b into the paste storage cavity 10a, reducing the risk of bacterial growth and contamination and ensuring the hygiene of the toothpaste during use.

[0124] The in-cavity one-way valve 50 has a dual function: on the one hand, it allows the toothpaste to flow from the paste storage cavity 10a to the pump cavity 31a, but blocks the toothpaste from flowing back from the pump cavity 31a into the paste storage cavity 10a, thereby reducing the risk of bacterial growth and contamination and ensuring the sealing and hygiene of the toothpaste during use; on the other hand, when the pump body 31 is pressed, the pump body 31 may move downward together with the one-way valve 40 inside the pump, and the in-cavity one-way valve 50 can effectively prevent the toothpaste in the temporary storage cavity 31b from flowing back into the paste storage cavity 10a, further ensuring the smoothness and hygiene of toothpaste extrusion.

[0125] From the above content, it can be seen that setting the one-way valve 40 inside the pump and the in-cavity one-way valve 50 can both effectively prevent the toothpaste from flowing back into the paste storage cavity 10a during use and avoid toothpaste contamination.

[0126] Please continue to refer to Figure 3 and Figure 4 , wherein, an air pressure balance cavity is formed between the bottom of the toothpaste container 10 and the piston 20. The bottom wall of the toothpaste container 10 has an air pressure balance hole 10c, that is, the air pressure balance hole 10c is arranged below the piston 20, and the air pressure balance hole 10c is communicated with the outside and the air pressure balance cavity, allowing external air to enter or exit the air pressure balance cavity, thereby maintaining air pressure balance.

[0127] Under normal circumstances, the air pressures on both sides of the piston 20, namely the paste storage cavity 10a and the air pressure balance cavity, are balanced. When toothpaste is discharged from the paste storage cavity 10a, the volume of the paste storage cavity 10a suddenly decreases, resulting in an instantaneous decrease in the air pressure inside the paste storage cavity 10a (forming a local negative pressure). At this time, due to the direct connection effect of the air pressure balance hole 10c, the air pressure balance cavity below the piston 20 still maintains the external atmospheric pressure (air is instantaneously supplemented through the balance hole). The resulting air pressure difference is manifested as: the air pressure (atmospheric pressure) below the piston 20 is greater than the air pressure (negative pressure) above the piston 20. According to the principle of gas mechanics, this pressure difference will generate an upward net force on the surface of the piston 20, pushing the piston 20 in the direction of the pump body 31. During the upward movement of the piston 20, the volume of the paste storage cavity 10a is further compressed by the piston 20, and toothpaste is output to the temporary storage cavity 31b; the volume of the air pressure balance cavity increases accordingly. Without the balance hole, a vacuum negative pressure would be formed. At this time, external air instantaneously flows into the air pressure balance cavity through the air pressure balance hole 10c at the bottom, always maintaining the internal air pressure equal to the atmospheric pressure, thereby eliminating the downward suction resistance to the movement of the piston 20.

[0128] This design essentially converts the atmospheric pressure into a driving force: after each extrusion of toothpaste, the negative pressure state of the paste storage cavity 10a is automatically compensated by the upward movement of the piston 20, and the air pressure balance cavity continuously obtains air pressure replenishment through the air pressure balance air hole, forming a sustainable one-way drive system. When the extrusion stops, the displacement of the piston 20 has compensated for the volume loss of the paste storage cavity 10a, and the system reaches a new air pressure balance state.

[0129] When the user presses the pump body 31, the volume of the pump cavity 31a decreases, the internal air pressure increases, and the one-way valve 40 inside the pump is pressed and closed, blocking the connection between the temporary storage cavity 31b and the pump cavity 31a and preventing the toothpaste from flowing back to the temporary storage cavity 31b. Also, since the one-way valve 50 inside the cavity is closed, the toothpaste will not flow back to the paste storage cavity 10a through the temporary storage cavity 31b. The only outlet for the high-pressure toothpaste in the pump cavity 31a is the paste outlet 32a. Therefore, the toothpaste in the pump cavity 31a is extruded from the paste outlet 32a under pressure.

[0130] When the user releases the pump body 31, the pump body 31 returns to its original state, the volume of the pump cavity 31a increases, the internal air pressure decreases, forming a negative pressure. The negative pressure in the pump cavity 31a creates a pressure difference between the temporary storage cavity 31b (atmospheric pressure) and the pump cavity 31a (negative pressure). The one-way valve 40 inside the pump connects the temporary storage cavity 31b and the pump cavity 31a, and the negative pressure in the pump cavity 31a sucks the toothpaste in the temporary storage cavity 31b to fill the expanded space of the pump cavity 31a. The one-way valve 50 inside the cavity connects the pump cavity 31a and the paste storage cavity 10a. Under the push of the atmospheric pressure, the toothpaste in the paste storage cavity 10a enters the temporary storage cavity 31b to supplement the amount of toothpaste pumped away by the pump cavity 31a. Since the volume of the pump cavity 31a is limited and can only hold the amount of toothpaste required for a single cleaning, it can extrude the toothpaste required for a single cleaning during the user's next press.

[0131] In some embodiments, the pressing portion 33 is connected to the pump body 31. The connection between the pressing portion 33 and the pump body 31 enables them to jointly bear the pressure when stressed, reducing the risk of structural damage caused by uneven local stress. When the pressing portion 33 is pressed down, the pump body 31 and the pressing portion 33 elastically deform together. This design can ensure that after the pressing force is released, the pressing portion 33 and the pump body 31 can quickly return to the initial state together.

[0132] Moreover, the pressing portion 33 can protect the pump body 31 and reduce the possibility of dust and dirt directly contacting the pump body 31, making it more hygienic.

[0133] As Figure 5 and Figure 6 shown, in some embodiments, the pressing portion 33 is connected to the toothpaste container 10 and covers the outside of the pump body 31, which can effectively prevent pollutants such as dust and bacteria from entering the inside of the pump body 31 and maintain the hygiene of the toothpaste. Reducing the direct contact between the pump body 31 and the external environment reduces the possibility of the toothpaste being contaminated and ensures the hygiene of the toothpaste.

[0134] Since the pressing portion 33 covers the outside of the pump body 31, that is, the cross-sectional area of the pressing portion 33 is larger than that of the pump body 31, users can easily find the pressing position and press from multiple directions, increasing the flexibility and convenience of operation. And the pressing portion 33 covers the outside of the pump body 31 and is connected to the toothpaste container 10, which can provide a larger pressing area. This allows users to apply force more easily when pressing, reducing the inconvenience caused by too small a pressing area, especially suitable for children. Children have relatively less hand strength, and a larger pressing area allows them to squeeze out toothpaste more easily.

[0135] Through the covering design, the volume of the pump body 31 can be appropriately reduced. The relatively small pump body 31 can extrude a relatively small amount of toothpaste during a single press, which helps to avoid children squeezing out too much toothpaste at one time and causing waste. At the same time, this design is also applicable to adult users, enabling better control of the amount of toothpaste used and meeting the needs of different users.

[0136] Wherein, the inner diameter of the pressing portion 33 is larger than the outer diameter of the pump body 31 so that the pressing portion 33 covers the outside of the pump body 31, that is, the pressing portion 33 can provide a larger pressing area. The larger pressing surface can disperse the pressing force and reduce the fatigue of the fingers. Since the inner diameter of the pressing portion 33 is larger than the outer diameter of the pump body 31, the pressing portion 33 can provide a better buffering effect during the pressing process. The touch felt by the user during pressing is softer, reducing the discomfort during pressing.

[0137] To control the amount of paste extruded each time the pump body 31 is pressed, reduce the waste of toothpaste, and make it suitable for the amount used in a single brushing, the volume of the pump body 31 does not need to be set so large. On the premise that the pump cavity 31a meets the single-use amount, controlling the outer diameter of the pump body 31 can also save the manufacturing materials of the pump body 31.

[0138] Moreover, the inner diameter of the pressing part 33 is larger than the outer diameter of the pump body 31, which also makes the part of the pressing part 33 other than the connecting part spaced from the pump body 31, reducing the friction between the two, thereby reducing the wear speed of the components and extending the service life of the product. And when the user presses the pressing part 33, they will not be directly blocked by the pump body 31, making the pressing action smoother and the operation more flexible.

[0139] In some embodiments, the volume of the pump cavity 31a is not less than 1 ml and not more than 8 ml. Reasonably restricting the volume of the pump cavity 31a ensures that an appropriate amount of toothpaste can be extruded each time. The volume of the pump cavity 31a is designed within this range, which can not only meet the amount of toothpaste required for a single brushing, but also avoid waste and health risks, and has high practicality and rationality.

[0140] In some embodiments, the volume of the pump cavity 31a is larger than the volume of the paste outlet pipe 32, ensuring that in a single extrusion action, the toothpaste paste stored in the pump cavity 31a is sufficient to quickly fill the paste outlet pipe 32 and be extruded from the paste outlet 32a. If the volume of the paste outlet pipe 32 is larger, more toothpaste is required to fill the pipe, and multiple presses may be needed, delaying the time for the paste to be extruded from the paste outlet 32a. Therefore, by making the volume of the pump cavity 31a larger than the volume of the paste outlet pipe 32, it can be ensured that the toothpaste can be quickly extruded from the paste outlet 32a.

[0141] Furthermore, the ratio of the volume of the pump cavity 31a to the volume of the paste outlet pipe 32 is not less than 4. By designing the ratio of the volume of the pump cavity 31a to the volume of the paste outlet pipe 32 to be not less than 4, it can be ensured that the toothpaste in the pump cavity 31a can quickly fill the paste outlet pipe 32 and be extruded from the paste outlet 32a with a single press, reducing the waiting time.

[0142] In some embodiments, the pressing part 33 and the pump body 31 are at least partially spaced apart. The spaced-apart setting can provide a certain amount of movement space for the pressing part 33 and the pump body 31, avoiding affecting the stability of the overall structure due to excessive extrusion or deformation, and also providing a certain amount of deformation space for the pressing part 33 when it is stressed.

[0143] This design enables the pump body 31 to deform more smoothly when subjected to a pressing force, reducing the risk of damage caused by excessive extrusion. Since the pump body 31 can deform more smoothly during the pressing process, the paste can be pumped out more easily.

[0144] Specifically, in the form where the pressing part 33 and the pump body 31 are separately arranged, the pump body 31 is connected to the middle part of the pressing part 33 and is located below the pressing part 33. The pump body 31 is at least partially spaced from the pressing part 33 in the circumferential direction. That is, the space between the pressing part 33 and the pump body 31 provides a certain pressing stroke margin for the pressing action, so that when the user accidentally presses, the pressing part 33 will not directly act on the pump body 31, thus avoiding the accidental extrusion of toothpaste caused by accidental touch.

[0145] In some embodiments, the thickness of the pressing part 33 is greater than or equal to the thickness of the soft rubber part of the pump body 31. That is, the pressing part 33 is structurally thicker. For usage scenarios that require frequent pressing, such as at home or in public places, the thick pressing part 33 can provide better durability and stability.

[0146] Such as Figure 6 、 Figure 8 and Figure 9 As shown, in some embodiments, the pump body 31 includes a mating part 313 disposed away from the toothpaste container 10. The pump body assembly 30 further includes a rigid connecting part 34. The rigid connecting part 34 is connected between the pressing part 33 and the pump body 31. The rigid connecting part 34 is connected to the inner wall surface of the pressing part 33. The inner wall surface of the pressing part 33 is the side wall surface facing the pump body 31. Among them, the rigid connecting part 34 is connected to the mating part 313. The function of the rigid connecting part 34 is to fix the pressing part 33 on the pump body 31, prevent it from falling off or shifting, and at the same time ensure the sealing between the two. Through the cooperation of the mating part 313 and the rigid connecting part 34, a more tight and stable connection is formed between the pressing part 33 and the pump body 31, which can prevent the pressing part 33 from accidentally falling off or shifting during use, and ensure the reliability and service life of the toothpaste supply device 100.

[0147] It can be understood that the rigid connecting part 34 is a rigid part, which can enhance the connection strength with the mating part 313. The rigid part can withstand greater mechanical stress, reducing the risk of connection loosening or damage caused by repeated pressing. During long-term use, the rigid part can better withstand repeated pressing operations, reducing the wear and damage of components, thereby extending the service life of the product.

[0148] Among them, the hard connection part 34 is connected to the inner wall surface of the pressing part 33. When the user presses the pressing part 33, the force first acts on the pressing part 33, and then is directly transmitted to the matching part 313 of the pump body 31 through the hard connection part 34. Since the hard connection part 34 is connected to the inner wall surface of the pressing part 33, the transmission of this force is direct and efficient, avoiding the dispersion or loss of force. After the pump body 31 is subjected to external force, it will undergo corresponding deformation. This deformation is the key to controlling the amount of paste output. The force of the pressing part 33 can cause the pump body 31 to produce the expected deformation, and the toothpaste stored in the pump cavity 31a can be squeezed out through the paste outlet 32a. Since the transmission of force is more direct and efficient, the paste output efficiency is improved.

[0149] Furthermore, the hard connection part 34 is snap-connected, screwed or bonded to the matching part 313. The snap connection is achieved through the snap-on structure (such as protrusions and grooves) on the hard connection part 34 and the matching part 313, and can be directly molded on the plastic part without the need for additional fasteners (such as screws and nuts), which saves costs and can achieve rapid assembly and disassembly, usually without the assistance of tools, thereby improving production efficiency. Screw connection is a method of connecting the hard connection part 34 and the matching part 313 together through threaded fasteners (such as bolts and nuts). By adjusting the tightening degree of the bolts, the tightening force of the connection can be controlled, and it is convenient for disassembly and maintenance. Adhesion connects the hard connection part 34 and the matching part 313 together through an adhesive, and the adhesive can evenly distribute the stress to the entire connection surface, reducing local stress concentration.

[0150] Specifically, one of the hard connection part 34 and the matching part 313 is a protrusion, and the other is provided with a groove. For example, a protrusion is provided on the side of the pump body 31 away from the toothpaste container 10, and the protrusion is arranged in a ring on the circumference of the pump body 31. The pressing part 33 is correspondingly provided with a groove, and the protrusion can be embedded in the groove to achieve matching. Through the matching of the protrusion and the groove, a tight connection between the two parts is achieved to ensure that they will not loosen or fall off during the pressing process.

[0151] The protrusion is embedded in the groove to achieve an interference fit. The interference fit means that when the protrusion is embedded in the groove, there is a certain amount of interference, so that a tight connection is generated between the two parts. The interference fit ensures a tight connection between the pressing part 33 and the pump body 31, reduces shaking and instability during pressing, and improves the consistency and reliability of the pressing action. The interference fit can effectively prevent the loosening of parts due to frequent pressing or external impact, and extend the service life of the product.

[0152] In some embodiments, the pressing portion 33 is in contact with the pump body 31, or the distance between the pressing portion 33 and the pump body 31 is not greater than 3 mm. When the pressing portion 33 is not squeezed, the close contact or the close setting between the pressing portion 33 and the pump body 31 enables the pressing force applied by the user to the pressing portion 33 to be transmitted more directly to the pump body 31. This design reduces the pressing stroke, and the user can trigger the deformation of the pump body 31 more quickly when pressing, thereby squeezing out toothpaste more efficiently. By reducing the pressing stroke, the user can operate more easily during use, reducing the force required for pressing, which is especially suitable for users with less strength, such as children or the elderly.

[0153] In some embodiments, the pressing portion 33 includes an elastic outer cover 331 and convex ribs 332. The elastic outer cover 331 is the main part of the pressing portion 33. The elastic outer cover 331 covers the pump body 31 and can provide good elastic feedback. The elastic outer cover 331 can be detachably arranged with the pump body 31, that is, the elastic outer cover 331 provides additional buffering and higher pressing comfort. The material and shape of the elastic outer cover 331 can be designed independently of the pump body 31. The elastic outer cover 331 can be configured into different shapes to provide more diverse appearance designs and enhance the aesthetics of the product. For example, it can be in the shape of a mushroom or a little bear, etc., to increase the interest of the appearance of the toothpaste supply device 100.

[0154] When the user presses, the elastic outer cover 331 can undergo elastic deformation and can quickly return to its original state when released, thereby providing a comfortable pressing feel. The convex ribs 332 are arranged on the inner wall surface of the elastic outer cover 331. The inner wall surface mentioned here is the wall surface of the elastic outer cover 331 facing the pump body 31. Arranging the convex ribs 332 on the inner wall surface of the elastic outer cover 331 can enhance the structural strength of the elastic outer cover 331 and reduce the risk of damage to the elastic outer cover 331 due to excessive deformation. The convex ribs 332 can prevent fatigue damage of the elastic outer cover 331 caused by local stress concentration during frequent use, thereby extending the service life of the pressing portion 33.

[0155] Furthermore, the design of the convex ribs 332 can increase the elastic deformation range of the elastic outer cover 331, enabling the pressing portion 33 to return to the initial state more effectively after being subjected to an external force. This design is similar to introducing pre-strain in the material. Through the action of the convex ribs 332, the material can better maintain its elastic properties after deformation, thereby enhancing the overall recovery deformation ability.

[0156] Please continue to refer to Figure 6 、 Figure 8 and Figure 9 , in some embodiments, the convex ribs 332 include first convex ribs 3321, and the first convex ribs 3321 protrude from the inner wall surface of the elastic outer cover 331.

[0157] Such as Figure 7As shown, in one setting form, the first rib 3321 extends outward from the peripheral area of the pump body 31, forming a fan-shaped distribution pattern. The root of each first rib 3321 is adjacent to the periphery of the pump body 31 and extends outward to the inner surface of the elastic outer cover 331, thereby forming a plurality of radial support structures on the inner wall of the elastic outer cover 331. When pressing the elastic outer cover 331, the pressing force can be directly transmitted to the pump body 31 through the first rib 3321, improving the paste discharging efficiency.

[0158] As Figure 8 and Figure 9 As shown, in another setting form, some of the first ribs 3321 extend in the second direction, and the remaining first ribs 3321 extend in the third direction. The third direction is perpendicular to the second direction, that is, the first ribs 3321 intersect on the inner wall surface of the elastic outer cover 331, forming an interlaced grid-like structure. It can be understood that the elastic outer cover 331 provided with the first ribs 3321 forms a more solid framework structure, which can better resist the squeezing force and twisting force from all directions, enabling the elastic outer cover 331 to recover flat after being subjected to an external force, and improving the service life of the toothpaste supply device 100.

[0159] Specifically, in this embodiment, the pressing direction is vertically downward, and the inner wall of the elastic outer cover 331 is in an arc shape arched away from the horizontal plane. Among them, both the second direction and the third direction are perpendicular to the pressing direction. Among them, some of the first ribs 3321 extend parallel to a certain radial direction of the inner wall, and there are multiple first ribs 3321 arranged at intervals along the direction perpendicular to this radial direction; the remaining multiple first ribs 3321 are cross-set with the above-mentioned first ribs 3321, thereby forming an interlaced grid-like structure.

[0160] To improve the tight fit between the first rib 3321 and the pump body 31, in some embodiments, one of the first rib 3321 and the pump body 31 has a buckling portion 314, and the other has a buckling groove 3321a. The buckling portion 314 is buckled with the buckling groove 3321a. The buckling portion 314 is a protruding part on the first rib 3321 or the pump body 31, and the buckling groove 3321a is a recessed part on the first rib 3321 or the pump body 31 for accommodating the buckling portion 314 of the other component, ensuring that the buckling portion 314 can be accurately embedded, ensuring the precise alignment of the first rib 3321 and the pump body 31 during assembly, and improving the assembly accuracy. The buckling fit ensures the tight connection between the pressing portion 33 and the pump body 31, reduces the shaking and instability during pressing, and improves the consistency and reliability of the pressing action.

[0161] Specifically, the first rib 3321 is arranged in a ring shape to form a snap groove 3321a. The top of the pump body 31 has a snap portion 314. The snap portion 314 and the snap groove 3321a are snap-connected in the up-and-down direction. This snap structure makes the connection between the first rib 3321 and the pump body 31 more firm, reducing the risk of loosening or falling off caused by external forces.

[0162] Please continue to refer to Figure 6 、 Figure 8 and Figure 9 , in some embodiments, the rib 332 further includes a second rib 3322. The second rib 3322 protrudes from the inner wall surface of the elastic outer cover 331 and extends along the circumferential direction of the inner wall surface of the elastic outer cover 331. For example, when the outer shape of the elastic outer cover 331 is circular, that is, the second rib 3322 extends along the circumferential direction of the inner wall surface of the pressing portion 33. This design provides additional circumferential support, enhances the structural strength of the elastic outer cover 331, reduces material fatigue caused by frequent pressing, and improves the durability of the product. The second rib 3322 can also reduce the unstable shaking of the elastic outer cover 331, ensuring the consistency and reliability of the pressing action.

[0163] Furthermore, the second rib 3322 is connected to the first rib 3321, that is, the second rib 3322 is connected to the bottom end of the first rib 3321. The second rib 3322 can provide support for the first rib 3321. The design of mutual support can disperse and bear the external force applied to the first rib 3321, avoid stress concentration, increase the overall stability of the pressing portion 33, and ensure that the pressing portion 33 remains in the correct position during pressing.

[0164] As Figure 10 shown, in some embodiments, the rib 332 further includes a third rib 3323. The third rib 3323 protrudes from the outer wall surface of the elastic outer cover 331 and can extend along the radial direction of the elastic outer cover 331. When the user presses the toothpaste supply device 100, the finger or palm will contact the outer wall surface of the elastic outer cover 331. Without texture or protrusion, it is easy to slip in the case of humidity or wet hands, resulting in inaccurate pressing or insufficient force. The third rib 3323 significantly increases the friction force by increasing the roughness of the contact surface, enabling the user to press the pressing portion 33 more firmly.

[0165] Specifically, two third ribs 3323 can be provided. One of the third ribs 3323 and the other third rib 3323 are arranged in a "cross" shape. The intersection point of the "cross"-shaped third ribs 3323 can serve as a visual and tactile guide to help the user more accurately find the center position of pressing, ensure that the pressing direction is consistent with the pressing direction of the pump body assembly 30, and avoid problems such as poor paste discharge or leakage caused by offset pressing.

[0166] As Figure 6 , Figure 11 and Figure 12 shown, in some embodiments, the toothpaste supply device 100 further includes an intermediate connector 60. The intermediate connector 60 is connected between the toothpaste container 10 and the pressing part 33. The pump assembly 30 is connected to the toothpaste container 10 through the intermediate connector 60. Specifically, a part of the pump body 31 passes through the intermediate connector 60 to be hermetically connected to the top end of the toothpaste container 10. The intermediate connector 60 has the above-mentioned temporary storage cavity 31b, which can communicate with the paste storage cavity 10a and the pump cavity 31a. That is, the intermediate connector 60 plays a role of a bridge to ensure the communication between the pump cavity 31a and the paste storage cavity 10a. Through the intermediate connector 60, the stability and connection strength of the overall structure can be enhanced, and at the same time, better sealing performance can be provided.

[0167] Among them, in one setting form, the maximum dimension of the outer contour of the intermediate connector 60 is greater than the maximum dimension of the outer contour of the pressing part 33, which can provide additional support and stability for the pressing part 33.

[0168] In another setting form, the maximum dimension of the outer contour of the intermediate connector 60 is greater than the maximum dimension of the outer contour of the toothpaste container 10, that is, the intermediate connector 60 can cover the toothpaste container 10. The larger outer contour dimension can better cover the top of the toothpaste container 10, provide better sealing performance, reduce the risk of toothpaste leakage, and ensure the hygiene during storage and use of the toothpaste. At the same time, in this design, when the user presses, the intermediate connector 60 can provide support for the entire palm of the user, reduce the pressing difficulty of the user, and improve the comfort and convenience of use.

[0169] In yet another setting form, the maximum dimension of the outer contour of the intermediate connector 60 is greater than the maximum dimension of the outer contour of the pump assembly 30. Since the size of the intermediate connector 60 exceeds that of the pump assembly 30, the intermediate connector 60 can completely cover the pump assembly 30 in the circumferential direction and can serve as a more stable pressing base to enhance the structural stability of the entire toothpaste supply device 100. This helps to prevent the pump assembly 30 from shaking or shifting during the pressing process, ensuring the accuracy and reliability of the operation.

[0170] In some embodiments, the intermediate connector 60 includes a convex portion that protrudes from the outer peripheral surface of the toothpaste container 10. The convex portion is annularly arranged and surrounds the outer periphery of the toothpaste container 10. The convex portion can form a tight fit with the outer peripheral surface of the toothpaste container 10 to prevent the intermediate connector 60 from loosening or shifting during use. This design ensures a stable connection between the intermediate connector 60 and the toothpaste container 10 and improves the reliability of the product. Moreover, the convex portion can form a good seal with the outer peripheral surface of the toothpaste container 10 to prevent toothpaste leakage.

[0171] Furthermore, in some embodiments, the paste outlet 32a is located on the raised portion. Since the raised portion protrudes from the outer periphery of the toothpaste container 10 and the paste outlet 32a is provided on the raised portion, that is, there is a certain interval from the toothpaste container 10, interference between the paste outlet 32a and the toothpaste container 10 can be avoided, making the toothpaste extruded from the paste outlet 32a more hygienic. When in use, users can more conveniently access the paste outlet 32a without being blocked by the main body portion of the toothpaste container 10. This design improves the usability of the product.

[0172] In some embodiments, the top surface of the intermediate connecting member 60 is planar or arc-shaped. When the top surface of the intermediate connecting member 60 is planar, it is convenient for connection and installation with other components. Especially when it needs to cooperate with other planar structures, good contact and stability can be ensured. And when the planar connection structure is stressed, the stress distribution is relatively uniform, which can improve the reliability and stability of the connection. If the top surface of the intermediate connecting member 60 is arc-shaped, since both the top surface of the intermediate connecting member 60 and the pressing portion 33 can serve as the acting surfaces for users to apply pressure, the arc design can better fit the natural curve of the user's hand, making the pressing action more natural and comfortable. In addition, the arc design can increase the contact area between the palm and the intermediate connecting member 60 when the user presses the pressing portion 33, avoiding the pressure on the palm from being too concentrated. And the arc design can make the transition between the intermediate connecting member 60 and the pressing portion 33 more natural, forming an integrated visual effect and enhancing the overall sense of the product.

[0173] Please continue to refer to Figure 6 、 Figure 11 and Figure 12 , in some embodiments, the intermediate connecting member 60 includes a top wall 61, a bottom wall 62 and a peripheral side wall 63. Among them, the top wall 61 and the bottom wall are opposite and spaced apart, and the peripheral side wall 63 is connected between the top wall 61 and the bottom wall 62. The top wall 61 is closer to the pressing portion 33 than the bottom wall 62, and the bottom wall 62 is closer to the toothpaste container 10 than the top wall 61.

[0174] The connection between the circumferential side wall 63 and the top wall 61 is provided with a rounded corner, that is, at the connection between the circumferential side wall 63 and the top wall 61, instead of using a sharp right angle or acute angle transition, a rounded arc transition is adopted; or, the connection between the circumferential side wall 63 and the bottom wall 62 is provided with a rounded corner, that is, at the connection between the circumferential side wall 63 and the bottom wall 62, instead of using a sharp right angle or acute angle transition, a rounded arc transition is adopted; or, the connection between the circumferential side wall 63 and the top wall 61 is provided with a rounded corner, and the connection between the circumferential side wall 63 and the bottom wall 62 is provided with a rounded corner. Through the above-mentioned rounded corner design, when the user presses the toothpaste supply device 100, the force applied to the top wall 61 can be more evenly transmitted to the circumferential side wall 63 and the bottom wall 62, avoiding stress concentration, thereby effectively improving the compressive strength and durability of the intermediate connector 60. At the same time, the rounded corner design also avoids the risk of scratching the user due to sharp edges, improving the safety of the product. In addition, the rounded corner design makes the appearance of the intermediate connector 60 more smooth and beautiful, enhancing the overall visual effect of the product.

[0175] In this embodiment, the intermediate connector 60 can be manufactured by injection molding, and the rounded corner design is also beneficial to mold demolding, improving production efficiency.

[0176] As Figure 3 、 Figure 6 and Figure 12 shown, in some embodiments, the middle part of the bottom wall 62 has a communication port 62a communicating with the toothpaste container 10. The middle part of the bottom wall 62 has a communication port 62a communicating with the toothpaste container 10. The communication port 62a provides a channel through which the paste in the toothpaste container 10 can communicate with the pump body 31 through the communication port 62a. The intermediate connector 60 further includes an annular protrusion 64. The annular protrusion 64 protrudes from the side of the bottom wall 62 facing away from the toothpaste container 10, that is, the annular protrusion 64 protrudes in the direction of the pressing part 33, and the annular protrusion 64 surrounds the communication port 62a. One end of the pump body 31 close to the toothpaste container 10 forms a socket part 315. The socket part 315 is sleeved on the outer periphery of the annular protrusion 64. The annular protrusion 64 forms a positioning and supporting structure for cooperating with the socket part 315 of the pump body 31. The socket part 315 is sleeved on the outer peripheral wall of the annular protrusion 64. The annular protrusion 64 provides stable support and positioning for the pump body 31, ensuring that the pump body 31 can be accurately installed on the intermediate connector 60 and maintain the correct position and direction. Realize the tight connection between the pump body 31 and the intermediate connector 60, reduce shaking and loosening, and improve the stability of the overall structure.

[0177] Among them, the annular protrusion 64 and the bottom wall 62 jointly define a temporary storage cavity 31b. The one-way valve 50 in the cavity is arranged at the bottom of the temporary storage cavity 31b. To limit the movement of the one-way valve 50 in the cavity within the temporary storage cavity 31b, the one-way valve 50 in the cavity is embedded in the bottom of the temporary storage cavity 31b. A limiting portion 641 is provided on the inner peripheral wall of the annular protrusion 64. The limiting portion 641 can cooperate with the bottom wall 62 to limit the displacement of the one-way valve 50 in the cavity from the up and down directions, so that the one-way valve can effectively control the flow direction of the toothpaste, prevent the toothpaste from flowing back, and ensure that the toothpaste can smoothly flow from the paste storage cavity 10a to the pump body 31.

[0178] Please continue to refer to Figure 6 , Figure 11 and Figure 12 , in some embodiments, the top wall 61 has a mounting opening 61a. The mounting opening 61a can be specifically arranged in the middle of the top wall 61. The pump body 31 penetrates into the intermediate connector 60 through the mounting opening 61a and is hermetically connected to the annular protrusion 64. That is, the mounting opening 61a enables the pump body 31 to penetrate from the top of the intermediate connector 60, which is convenient for assembly, simplifies the assembly process, does not require the pump body 31 to be forcibly sleeved from the side, can avoid damage to the pump body 31, and is also convenient for automated assembly.

[0179] And the bottom of the pressing portion 33 has an annular step portion. The annular step portion has an annular card slot 33b. The mouth wall of the mounting opening 61a is inserted into the annular card slot 33b. That is, the annular card slot 33b has a first card slot wall and a second card slot wall arranged oppositely. The first card slot wall and the second card slot wall can clamp the mouth wall of the mounting opening 61a in the up and down directions, enhancing the connection stability between the pressing portion 33 and the intermediate connector 60 and preventing the pressing portion 33 from falling off or loosening during use. And it enables the connection between the pressing portion 33 and the intermediate connector 60 not to require additional fasteners such as screws and buckles, reducing the production cost.

[0180] Such as Figure 3 and Figure 6 and Figure 12 As shown, to improve the connection tightness between the intermediate connector 60 and the pump body 31, in some embodiments, the toothpaste supply device 100 further includes a fixing member 70. The fixing member 70 is connected between the bottom wall 62 and the socket portion 315 to press the socket portion 315 tightly against the annular protrusion 64 fixed. Through the pressing action of the fixing member 70, it ensures a tight connection between the socket portion 315 and the annular protrusion 64, reduces the risk of loosening and leakage, and improves the stability and sealing performance of the overall structure. And the stable connection can reduce the shaking during pressing, provide a more uniform pressing feel, and improve the user experience.

[0181] Such as Figure 3 , Figure 6 and Figure 12As shown, specifically, the intermediate connector 60 further has a mounting counterbore 65. The mounting counterbore 65 sinks toward the side away from the pressing portion 33. The annular protrusion 64 is provided on the bottom wall of the mounting counterbore 65. The fixing member 70 includes a connected first fixing portion 71 and a second fixing portion 72. The first fixing portion 71 is circular and is disposed in the mounting counterbore 65 and extends in the horizontal direction. The outer peripheral wall of the first fixing portion 71 abuts against the inner side wall of the mounting counterbore 65. To limit the displacement of the first fixing portion 71 in the up and down direction, a limiting protrusion 66 is annularly provided on the inner side wall of the mounting counterbore 65. The first fixing portion 71 is located between the limiting protrusion 66 and the pump body 31. The first fixing portion 71 can squeeze a part of the pump body 31 in the up and down direction so that the pump body 31 abuts against the intermediate connector 60. The second fixing portion 72 is connected to the inner wall of the first fixing portion 71 and extends toward the pressing portion 33. The second fixing portion 72 is located on the side of the partial outer peripheral wall of the pump body 31 away from the annular protrusion 64. The second fixing portion 72 can squeeze the pump body 31 toward the center of the communication port 62a so that the pump body 31 closely fits against the annular protrusion 64, ensuring a tight connection between the pump body 31 and the intermediate connector 60 and reducing the risk of loosening and leakage.

[0182] Please continue to refer to Figure 3 , Figure 6 and Figure 12 , in some embodiments, the top end of the toothpaste container 10 has an opening 10b communicating with the paste storage cavity 10a. The opening 10b is located on one side of the piston 20 in the up and down direction. The air pressure balance hole 10c is located on the other side of the piston 20 in the up and down direction. The bottom wall 62 of the intermediate connector 60 has an annular avoidance groove 62b opened toward the toothpaste container 10. The annular avoidance groove 62b is for accommodating the mouth wall of the opening 10b of the toothpaste container 10 and provides an accurate mounting position. The outer side wall 62a2 of the annular avoidance groove 62b has an internal thread. The so-called outer side wall 62a2 refers to the side of the annular avoidance groove 62b facing the toothpaste container 10. The outer peripheral surface of the top end of the toothpaste container 10 has an external thread. The top end of the toothpaste container 10 can be inserted into the annular avoidance groove 62b, and the external thread of the toothpaste container 10 is screwed with the internal thread of the annular avoidance groove 62b, ensuring a stable connection between the toothpaste container 10 and the intermediate connector 60, achieving a tight connection between the toothpaste container 10 and the intermediate connector 60, and reducing shaking and loosening. And through precise thread matching, toothpaste leakage caused by loose connection can be reduced, the risk of toothpaste leakage can be reduced, and the hygiene during storage and use of the toothpaste can be ensured.

[0183] In some embodiments, from the bottom of the annular avoidance groove 62b to the direction of the notch, it should be noted that the bottom wall 62 is arranged closer to the side where the pressing portion 33 is located than the notch, and the inner groove wall 62a1 of the annular avoidance groove 62b is gradually arranged away from the outer groove wall 62a2. The inner wall refers to the radial direction from the center of the toothpaste container 10 to the outer periphery, the inner groove wall 62a1 is closer to the center of the circle than the outer groove wall 62a2, and the outer groove wall 62a2 is closer to the outer periphery than the inner groove wall 62a1, so that the annular The avoidance groove 62b is open, so that the annular avoidance groove 62b gradually widens from the bottom of the groove to the groove mouth, which can reduce the collision between the toothpaste container 10 and the annular avoidance groove 62b when inserted, making the installation smoother and reducing the difficulty of installation. As the annular avoidance groove 62b is inserted deeper, it gradually narrows from the groove mouth to the bottom of the groove, that is, the inner wall forms a guiding slope, which can gradually guide the external thread of the toothpaste container 10 to approach the internal thread of the annular avoidance groove 62b, so that the toothpaste container 10 reaches the correct assembly position, significantly reducing the installation time.

[0184] like Figure 6 , Figure 13 and Figure 14 As shown, in order to prevent the paste in the paste storage chamber 10a from leaking when the piston 20 moves up and down, in some embodiments, the piston 20 includes a main body 21, a first surrounding ring 22 and a second surrounding ring 23. The main body 21 is the main component of the piston 20 and is arranged in a disc shape. The first surrounding ring 22 is connected to the outer periphery of the main body 21 and extends toward the side where the pump body 31 is located along the sliding direction of the piston 20; the second surrounding ring 23 is connected to the outer periphery of the main body 21 and extends toward the side away from the pump body 31 along the sliding direction of the piston 20. The first surrounding ring 22 and the second surrounding ring 23 can support the main body 21 and guide the moving direction of the main body 21, that is, guide the piston 20 to move in a straight line in the paste storage chamber 10a, so that the piston 20 will not be offset or tilted during the movement.

[0185] The first surrounding ring 22 and the second surrounding ring 23 extend upward and downward from the outer circumference of the main body 21 to form a double sealing structure. This design can more effectively prevent the paste from leaking from the gap between the piston 20 and the wall of the paste storage chamber 10a, and prevent air from entering the paste storage chamber 10a to affect the paste discharge effect.

[0186] like Figure 6 , Figure 13 and Figure 14As shown, the extension length of the first circumferential ring 22 is less than that of the second circumferential ring 23. Since the piston 20 mainly moves towards the side where the pressing part 33 is located, the smaller extension length of the first circumferential ring 22 can reduce the friction between the first circumferential ring 22 and the cavity side wall, so as not to limit the upward displacement of the piston 20. And the longer length of the second circumferential ring 23 enables at least part of the second circumferential ring 23 to adhere to the cavity side wall during the movement of the piston 20, ensuring the sealing performance.

[0187] Furthermore, when the piston 20 gradually moves closer to the top of the toothpaste container 10, a part of the first circumferential ring 22 can be embedded into the annular avoidance groove 62b. Since there is a gap between the inner groove of the annular avoidance groove 62b and the inner wall of the toothpaste container 10, toothpaste paste will be hidden. When a part of the first circumferential ring 22 extends into the gap as the piston 20 moves, the paste in the gap will be extruded, ensuring that the toothpaste in the toothpaste container 10 is fully squeezed into the pump body 31 and reducing toothpaste residue.

[0188] Please continue to refer to Figure 6 、 Figure 13 and Figure 14 In some embodiments, the main body part 21 of the piston 20 includes a main board 211 and a first stepped ring 212. The main board 211 is located inside the first circumferential ring 22 and is spaced from the first circumferential ring 22. The first stepped ring 212 includes a first connecting part 2121 and a first upward extending part 2122 connected at an angle. One end of the first connecting part 2121 is connected to the connection part between the first circumferential ring 22 and the second circumferential ring 23. The other end of the first connecting part 2121 is connected to one end of the first upward extending part 2122. The first upward extending part 2122 extends upward obliquely and is connected to the outer edge of the main board 211. The first connecting part 2121 and the first upward extending part 2122 connected at an angle form a structure similar to a "step". This structure can enhance the overall stability of the piston 20, especially when the piston 20 moves along the sliding direction, it can better withstand the lateral force and axial force.

[0189] Moreover, the angular structure of the first connecting part 2121 and the first upward extending part 2122 can serve as a guiding and positioning component. During the sliding process of the piston 20, this structure can guide the piston 20 to move in the correct direction. By optimizing the structure of the piston 20, the design of the first connecting part 2121 and the first upward extending part 2122 can ensure that the piston 20 can more smoothly push the toothpaste from the paste storage cavity 10a to the communication port 62a during the sliding process.

[0190] Please continue to refer to Figure 6 、 Figure 13 and Figure 14, Further, the main body portion 21 further includes a second stepped ring 213. The second stepped ring 213 includes a second connecting portion 2131 and a second upward extending portion 2132 which are connected at an angle. One end of the second connecting portion 2131 is connected to the top end of the first upward extending portion 2122. The other end of the second connecting portion 2131 is connected to one end of the second upward extending portion 2132. The second upward extending portion 2132 extends obliquely upward, that is, extends in the direction towards the communication port 62a, and is connected to the outer edge of the main board 211. The second connecting portion 2131 and the second upward extending portion 2132 of the second stepped ring 213 are connected at an angle to form an inclined structure. This inclined structure can reduce the contact area between the piston 20 and the inner wall of the container during the sliding process, thereby reducing the frictional force. By reducing the frictional resistance, the piston 20 can more smoothly push the toothpaste from the paste storage cavity 10a to the paste outlet 32a during the sliding process. The multi-layer structure design of the first stepped ring 212 and the second stepped ring 213 makes the overall structure of the piston 20 more stable. This design can effectively reduce the shaking and offset of the piston 20 during the sliding process and ensure the tight fit between the piston 20 and the inner wall of the toothpaste container 10.

[0191] As Figure 3 and Figure 6 shown, in some embodiments, the pump body assembly 30 further includes a paste outlet pipe 32. The pump body 31 has a pump nozzle communicating with the pump chamber 31a. The paste outlet pipe 32 is connected to the pump nozzle. The paste outlet pipe 32 has a paste outlet channel which communicates with the pump chamber 31a. The top wall 61 and the bottom wall 62 of the intermediate connector 60 are at least partially spaced apart to define an installation space. The paste outlet pipe 32 is partially installed in the installation space. That is, the installation space provides an accommodation space for the paste outlet pipe 32, so that a part of the paste outlet pipe 32 is hidden inside the intermediate connector 60. The paste outlet pipe 32 is not completely disposed outside the toothpaste container 10, which affects the visual effect. This makes the overall appearance of the toothpaste supply device 100 more concise and beautiful, and also has a certain protective effect on the paste outlet pipe 32. The paste outlet pipe 32 communicates with the pump body 31 and has a paste outlet 32a, and the paste outlet pipe 32 extends outside the intermediate connector 60 so that the paste outlet 32a is exposed. That is, a part of the paste outlet pipe 32 is installed in the above-mentioned installation space, and the paste outlet pipe 32 extends from the installation space to the outside of the intermediate connector 60 so that the paste outlet 32a can be exposed for the user to use conveniently.

[0192] And the intermediate connector 60 has an extension port 60a which communicates with the installation space. One end of the paste outlet pipe 32 having the paste outlet 32a extends out of the intermediate connector 60 through the extension port 60a, allowing the paste outlet pipe 32 to extend out of the intermediate connector 60 without increasing additional space. This enables the entire device to be designed more compactly and saves space.

[0193] In some embodiments, in the direction from the pump body 31 towards the paste outlet 32a, the flow cross-section of at least a section of the paste outlet pipe 32 gradually decreases. The gradually decreasing flow cross-section can cause the flow rate of the toothpaste in the paste outlet pipe 32 to gradually increase. According to the principles of fluid mechanics, when a fluid passes through a gradually narrowing pipe, its flow rate will increase accordingly, which helps the toothpaste to be extruded more smoothly from the paste outlet 32a, reduces the residence time of the toothpaste in the pipe, and thus improves the paste outlet efficiency.

[0194] In some embodiments, the length of the paste outlet pipe 32 is not greater than 50 mm. The shorter paste outlet pipe 32 can reduce the residual amount of toothpaste in the pipe. When the user presses the pump body 31, the toothpaste can pass through the paste outlet pipe 32 to reach the paste outlet 32a more quickly, reducing the accumulation of toothpaste in the pipe. Moreover, the shorter paste outlet pipe 32 can reduce the flow time of the toothpaste in the pipe, thereby increasing the paste outlet speed. This means that the user can get toothpaste faster when pressing the pump body 31, improving the usage experience.

[0195] As Figure 6 、 Figure 11 and Figure 15 shown, specifically, the pump body 31 includes an elastic section 311 and a paste outlet section 312. The paste outlet section 312 is connected to the elastic section 311 and jointly defines a pump chamber 31a with the elastic section 311. The paste outlet section 312 is located between the elastic section 311 and the toothpaste container 10. Understandably, the elastic section 311 is the main part of the pump chamber 31a, and the paste outlet section 312 can be understood as the pump nozzle part of the pump body 31. The paste outlet pipe 32 is connected and communicated with the paste outlet section 312. When the pump body 31 is squeezed, the toothpaste paste flows from the paste outlet section 312 into the paste outlet pipe 32. The elastic section 311 is a soft rubber part. The elastic section 311 of the soft rubber part can quickly return to its original state, ensuring that the pump body 31 can be deformed to squeeze the pump chamber 31a every time it is pressed, so that the toothpaste paste in the pump chamber 31a flows out from the paste outlet section 312, and after the external force is removed, it can quickly return to the initial state to prepare for the next press. And the paste outlet section 312 is a hard part. The hard paste outlet section 312 can ensure that the shape and position of the connection with the paste outlet pipe 32 remain unchanged during use, reducing toothpaste leakage caused by deformation.

[0196] Correspondingly, at least a section of the paste outlet pipe 32 connected to the pump body 31 is a hard section, that is, the hard section of the paste outlet pipe 32 is connected to the above-mentioned paste outlet section 312. The hard section has high rigidity and can effectively prevent the connection from deforming due to external force or internal pressure changes. This design ensures that the connection between the paste outlet pipe 32 and the pump body 31 always remains stable during use and will not cause the connection to become loose or leak due to deformation.

[0197] In some embodiments, the height of the paste outlet 32a is not higher than the height of the end of the paste outlet pipe 32 connected to the pump body 31, aiming to enable the toothpaste paste to slide smoothly by means of gravity during the process of flowing from the pump body 31 to the paste outlet 32a. Such a design avoids the situation where the toothpaste needs to flow upward against gravity, thus effectively preventing the blockage problem that may be caused by the accumulation or backflow of toothpaste in the paste outlet pipe 32, and ensuring that the toothpaste can be extruded smoothly.

[0198] As Figure 6 , Figure 9 and Figure 15 shown, further, the bottom of the pressing part 33 has an avoidance notch 33a for avoiding the paste outlet pipe 32. The avoidance notch 33a is communicated with the outside. The paste outlet pipe 32 passes through the avoidance notch 33a. The existence of the avoidance notch 33a makes the pressing part 33 not interfere with or rub against the paste outlet pipe 32 when it is covered, so as to ensure that the paste can be extruded smoothly from the paste outlet pipe 32 and will not cause difficult or interrupted paste extrusion due to the extrusion of the pressing part 33. And during the assembly process, due to the existence of the avoidance notch 33a, the paste outlet pipe 32 can be more easily passed through the pressing part 33, simplifying the assembly steps.

[0199] In some embodiments, the end of the paste outlet pipe 32 with the paste outlet 32a is snap-connected to the intermediate connector 60, or the middle section of the paste outlet pipe 32 is snap-connected to the intermediate connector 60. Whether the end with the paste outlet 32a or the middle section is snap-connected to the intermediate connector 60, such a design can enhance the connection stability between the paste outlet pipe 32 and the intermediate connector 60. The snap connection structure can effectively prevent the paste outlet pipe 32 from falling off or shifting due to external force or pressure during use, ensuring that the paste outlet pipe 32 is firmly fixed in the predetermined position.

[0200] The snap connection design is usually a connection method that is easy to assemble and disassemble. The paste outlet pipe 32 can be fixed to the intermediate connector 60 through a simple snap connection operation, improving the assembly efficiency. At the same time, when it is necessary to maintain or replace the paste outlet pipe 32, it can also be conveniently disassembled from the intermediate connector 60.

[0201] In some embodiments, the end of the paste outlet pipe 32 with the paste outlet 32a can be connected to the top wall 61, bottom wall 62 or circumferential side wall 63 of the intermediate connector 60. Among them, if the end of the paste outlet pipe 32 with the paste outlet 32a is connected to the top wall 61 of the intermediate connector 60 (such as Figure 1), such that the paste outlet 32a is located at the top of the intermediate connector 60. The paste outlet 32a is located on the upper surface of the intermediate connector 60 without obstruction, and the position of the paste outlet 32a is prominent, making it easy for users to identify and take the toothpaste by scooping. After the toothpaste is extruded from the paste outlet 32a, users can take the toothpaste by scraping it with a toothbrush, reducing the situation of users bending down. If the end of the paste outlet pipe 32 with the paste outlet 32a is connected to the bottom wall 62 of the intermediate connector 60, the toothpaste will naturally fall after being extruded from the paste outlet 32a, reducing the occurrence of toothpaste remaining on the outer wall of the intermediate connector 60. Users can directly hold the toothbrush and place the brush head under the paste outlet 32a to wait for the paste to come out, and the paste outlet method is more hygienic. If the end of the paste outlet pipe 32 with the paste outlet 32a is connected to the circumferential side wall 63 of the intermediate connector 60, setting it on the circumferential side wall 63 is more obvious than setting the paste outlet 32a at the bottom, and it can prevent users from directly touching the paste outlet 32a when pressing the pressing part 33.

[0202] Please continue to refer to Figure 6 、 Figure 8 and Figure 15 , in some embodiments, the paste outlet 32a is located at the connection between the bottom wall 62 and the circumferential side wall 63, which means that the paste outlet 32a is located at a position slightly below the side of the intermediate connector 60. On the one hand, it can effectively prevent users' fingers from accidentally touching the paste outlet 32a when pressing the pressing part 33, thus keeping the paste outlet 32a clean and avoiding the dirt on the fingers from contaminating the toothpaste. On the other hand, the paste outlet 32a at the lower side of the side utilizes the action of gravity, making the extruded toothpaste fall naturally downward and not easily remaining on the wall of the paste outlet 32a. This not only facilitates users to take the toothpaste but also reduces the waste of toothpaste.

[0203] And the paste outlet 32a is spaced from the outer peripheral surface of the toothpaste container 10, ensuring that the paste outlet 32a does not closely adhere to the outer wall of the toothpaste container 10, providing a certain space for the placement of the toothbrush head, not interfering with the outer wall of the toothpaste container 10, and also avoiding the paste directly contacting the outer wall of the container when being extruded, thereby keeping the appearance of the toothpaste container 10 clean, preventing paste contamination, and the taking of the paste is also more hygienic.

[0204] In some embodiments, in the radial direction of the toothpaste container 10, the distance between the paste outlet 32a and the outer peripheral surface of the toothpaste container 10 along the radial direction is not less than 10 mm and not more than 30 mm. This design reserves a certain space, enabling the user's toothbrush head to be conveniently placed near the paste outlet 32a in different directions without interfering with the outer peripheral surface of the toothpaste container 10. Reducing the contact between the toothbrush head and the outer peripheral surface of the toothpaste container 10, lowering the pollution risk, and ensuring the hygiene of the toothpaste during use.

[0205] In some embodiments, the paste outlet 32a is inclined downward. During use, the user can place the brush head below the paste outlet 32a and wait for the paste to come out from the paste outlet 32a. The downward inclination of the paste outlet 32a enables the toothpaste to flow more naturally towards the toothbrush head when being extruded.

[0206] Moreover, the included angle between the central axis of the paste outlet 32a and the horizontal plane is not less than 15 degrees and not more than 75 degrees, ensuring that the toothpaste can flow out smoothly. If the included angle between the central axis of the paste outlet 32a and the horizontal plane is less than 15 degrees, the paste outlet 32a is too close to the horizontal direction, and splashing may occur in all directions during extrusion, resulting in inconvenient use and waste. When the included angle is too large (greater than 75 degrees), the paste outlet 32a is too vertically downward, and the paste may be extruded too quickly under the action of gravity and pressure, and the user may not have time to accurately receive the toothpaste on the toothbrush, resulting in waste and pollution. And if the paste outlet 32a is too vertical, a relatively large bending angle may be required inside the paste outlet pipe 32 between the pump body 31 and the paste outlet 32a. This will cause resistance to the flow of the paste, and it is easy to accumulate at the bending point, and blockage may occur after long-term use.

[0207] Please continue to refer to Figure 6 and Figure 15 To prevent the toothpaste from flowing back at the paste outlet 32a, in some embodiments, the paste outlet pipe 32 includes a pipe body 321 and a paste outlet check valve 322. The pipe body 321 is connected to and communicates with the pump body 31, and the paste outlet check valve 322 is connected to one end of the pipe body 321 away from the pump body 31 and has the above-mentioned paste outlet 32a. The paste outlet check valve 322 can allow the paste to flow out of the paste outlet 32a from the pipe body 321, while preventing the toothpaste from flowing back into the pipe body 321 from the paste outlet 32a, reducing the possibility of external contaminants flowing into the pipe body 321 through the paste outlet 32a, and further enhancing the hygiene of the product.

[0208] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0209] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A toothpaste supply device, characterized in that, Comprising: A toothpaste container having a paste storage cavity for storing toothpaste, the bottom of the toothpaste container having a placement surface, and the toothpaste container being vertically arranged through the placement surface; And A pump body assembly provided at the top of the toothpaste container, including a pump body, a pressing part, and a paste outlet. At least part of the pump body is a soft rubber part and is in communication with both the paste storage cavity and the paste outlet. The pressing part is separately arranged from the pump body or is part of the pump body. When the pressing part drives the pump body to deform, toothpaste is discharged from the paste outlet, and the pressing part has a pressing surface; Wherein, the area of the pressing surface is not less than 350 mm 2 , and / or, the dimension of the pressing surface in the first direction is not less than 25 mm, and the first direction is perpendicular to the pressing direction of the pressing portion.

2. The toothpaste supply device according to claim 1, characterized in that, At least part of the pressing surface is an arc surface or a flat surface.

3. The toothpaste supply device according to claim 1, characterized in that, The distance from the outer edge of the vertical projection of the pressing surface on the toothpaste container to the outer edge of the cross-section of the toothpaste container is not greater than 10 mm; And / or, the ratio of the area of the vertical projection of the pressing surface on the toothpaste container to the cross-sectional area of the toothpaste container is not less than 0.8 and not greater than 1.

2.

4. The toothpaste supply device according to claim 1, characterized in that, The pressing part is a soft rubber part.

5. The toothpaste supply device according to claim 1 or 4, characterized in that The pressing part is connected to the toothpaste container and covers the outside of the pump body.

6. The toothpaste supply device according to claim 5, characterized in that, At least part of the pressing part is spaced from the pump body.

7. The toothpaste supply device according to claim 1 or 4, characterized in that, The pressing part is in contact with the pump body, or the distance between the pressing part and the pump body is not greater than 3 mm.

8. The toothpaste supply device according to claim 1 or 4, characterized in that, The pressing part is connected to the pump body.

9. The toothpaste supply device according to claim 8, characterized in that, The pump body assembly further includes: A rigid connecting part connected between the pressing part and the pump body.

10. The toothpaste supply device according to claim 1 or 4, characterized in that, The pressing part includes an elastic outer cover and convex ribs: The convex ribs are arranged on the inner wall surface of the elastic outer cover.

11. The toothpaste supply device according to claim 10, characterized in that, The convex ribs include: A first convex rib protruding from the inner wall surface of the elastic outer cover, part of the first convex rib extending in a second direction, and the rest of the first convex rib extending in a third direction perpendicular to the second direction; and / or A second convex rib protruding from the inner wall surface of the elastic outer cover and extending along the circumference of the pressing part, the second convex rib being connected to the bottom end of the first convex rib.

12. The toothpaste supply device according to claim 1, characterized in that, Further comprising: An intermediate connecting piece, and the pump body assembly is connected to the toothpaste container through the intermediate connecting piece.

13. The toothpaste supply device according to claim 12, wherein, The intermediate connecting piece includes a protruding part protruding relative to the outer peripheral surface of the toothpaste container, the protruding part being annularly arranged and surrounding the outer periphery of the toothpaste container; and / or, The top surface of the intermediate connecting piece is flat or arc-shaped.

14. The toothpaste supply device according to claim 12, wherein The intermediate connecting piece further has a temporary storage cavity located between the pump body and the toothpaste container, and the temporary storage cavity communicates the pump body with the paste storage cavity. The pump body assembly further includes: An in-cavity one-way valve provided in the temporary storage cavity, and the opening direction of the in-cavity one-way valve is from the paste storage cavity to the temporary storage cavity.

15. The toothpaste supply device according to claim 12, characterized in that, The intermediate connecting piece includes a protruding part protruding relative to the outer peripheral surface of the toothpaste container, and the paste outlet is located on the protruding part.

16. The toothpaste supply device according to claim 15, characterized in that, The intermediate connecting piece includes: A top wall having an installation opening, and the pump body passes through the installation opening and penetrates into the intermediate connecting piece; A bottom wall opposite to and spaced from the top wall; and A peripheral side wall connecting between the top wall and the bottom wall; Wherein, the paste outlet is located on the top wall or the bottom wall or the peripheral side wall.

17. The toothpaste supply device according to claim 16, wherein The paste outlet is located at the connection of the bottom wall and the peripheral side wall, and the paste outlet is spaced from the outer peripheral surface of the toothpaste container.

18. The toothpaste supply device according to claim 15, characterized in that, In the radial direction of the toothpaste container, the distance in the radial direction between the paste outlet and the outer peripheral surface of the toothpaste container is not less than 10 mm and not more than 30 mm.

19. The toothpaste supply device according to claim 15, characterized in that, The paste outlet is inclined downward, and the angle between the central axis of the paste outlet and the horizontal plane is not less than 15 degrees and not more than 75 degrees.

20. The toothpaste supply device according to claim 1, wherein, The pump body assembly further includes a paste outlet pipe, and the paste outlet pipe includes: a pipe body, connected to and communicating with the pump body; and a paste outlet check valve, connected to one end of the pipe body away from the pump body and having the paste outlet.

21. The toothpaste supply device according to claim 20, wherein, The bottom of the pressing part has an avoidance notch for avoiding the paste outlet pipe.

22. The toothpaste supply device according to any one of claims 1-4, 6, 9, 11-21, characterized in that, The top end of the toothpaste container has an opening communicating with the paste storage cavity, and the bottom of the toothpaste container has an air pressure balance hole; the pump body assembly further includes: a check valve inside the pump, arranged inside the pump body, and the opening direction of the check valve inside the pump is from the paste storage cavity to the inside of the pump body; and a piston, slidably connected to the toothpaste container and located inside the paste storage cavity, the opening is located on one side of the piston, and the air pressure balance hole is located on the other side of the piston.

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