Toothpaste supply device

Abstract

The embodiment of the present application provides a toothpaste supply device, comprising a toothpaste container and a pump body assembly, the toothpaste container has a storage cavity for storing toothpaste; the pump body assembly is arranged on the top of the toothpaste container, the pump body assembly comprises a pump body, a pressing part and a toothpaste outlet, the pump body is at least partially a soft rubber part and is in communication with the storage cavity and the toothpaste outlet, the pressing part is arranged separately from the pump body or is a part of the pump body, the pressing part is linked to the pump body to deform and discharge toothpaste from the toothpaste outlet, the pressing part has a pressing surface; wherein the area of the pressing surface is not less than 350mm 2 , and / or the size of the pressing surface in the first direction is not less than 25mm, the first direction is perpendicular to the pressing direction of the pressing part. The larger pressing surface increases the contact area of the fingers or the palm with the pressing part, so that the pressing is more stable, thereby improving the stability of the toothpaste supply device in discharging toothpaste. The pump body is at least partially a soft rubber part, has good elasticity, can be deformed under the action of external force, and restores to the original state after the external force is removed.

Description

Technical Field

[0001] This application relates to the field of oral hygiene technology, and more particularly to a toothpaste dispensing device. Background Technology

[0002] Toothpaste dispensing devices are an indispensable part of daily necessities, and their design and function directly affect the user experience. Traditional toothpaste dispensing devices mainly include squeeze tubes and press-type toothpaste pumps. While squeeze tubes are simple and easy to use, they have problems such as toothpaste residue and difficulty in squeezing out all the toothpaste. With technological advancements, press-type toothpaste pumps have gradually become one of the mainstream products on the market. Press-type toothpaste pumps use the pressure difference generated by pressing the pump head to pump toothpaste from the container, offering advantages such as convenience and hygiene.

[0003] In the technology of pump-type toothpaste dispensers, toothpaste pumps typically use a small pump head with a limited pressing area. This smaller pressing area means that users need to apply greater pressure to generate enough air pressure to dispensing the toothpaste. This not only makes it difficult for users to use, but also results in a poor user experience, especially for children and users with weaker hand strength. Utility Model Content

[0004] This application provides a toothpaste dispensing device that reduces the pressure required for a user to apply the toothpaste dispensing device.

[0005] This application provides a toothpaste supply device, including:

[0006] A toothpaste container having a reservoir for storing toothpaste; and

[0007] A pump assembly is disposed on the top of the toothpaste container and includes a pump body, a pressing part, and a toothpaste outlet. At least part of the pump body is a soft rubber part and is connected to the toothpaste storage cavity and the toothpaste outlet. The pressing part is separately disposed from the pump body or is part of the pump body. When the pressing part is in conjunction with the deformation of the pump body, toothpaste is dispensed from the toothpaste outlet. The pressing part has a pressing surface.

[0008] The area of ​​the pressing surface is not less than 350 mm². 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 part.

[0009] By adopting the above technical solution, increasing the area of ​​the pressing surface significantly reduces the force required by the user during pressing. A larger pressing surface is easier to reach, making it easier for the user to find the pressing position and apply force. Furthermore, the larger pressing surface increases the contact area between the fingers or palm and the pressing part, making the pressing more stable and thus improving the stability of toothpaste dispensing. The pressing surface has a dimension of not less than 25mm in the first direction, which is perpendicular to the pressing direction of the pressing part. A larger pressing surface (with a dimension of not less than 25mm in the first direction perpendicular to the pressing direction) provides a larger force-bearing area. This means that the force can be more evenly distributed when the user presses, reducing the pressure from the fingertips or palm, thereby improving pressing comfort and avoiding discomfort or pain caused by prolonged use. The larger pressing surface also increases the contact area between the fingers or palm and the pressing part, increasing friction and making the pressing process more stable, less prone to slipping or loss of control. Moreover, at least part of the pump body is made of soft rubber, which has good elasticity and flexibility, allowing it to deform under external force and return to its original shape after the force is removed. This design allows the soft rubber part to provide a gentle touch when the user presses the toothpaste dispenser, reducing discomfort during pressing. After the external force is removed, the soft rubber part returns to its original shape, and the pressing part returns to its original position, ready for the next press.

[0010] Optionally, at least a portion of the pressing surface is an arc surface or a plane.

[0011] By adopting the above technical solution, a pressing surface that is at least partially flat can guide the user to press correctly, provide a stable pressing experience, reduce shaking during pressing, and is suitable for scenarios that require precise control of pressing force. A pressing surface that is at least partially curved can be configured to better conform to the natural curvature of the human finger, and the curved surface can also increase the contact area between the finger and the pressing surface, thereby reducing the pressing force and difficulty.

[0012] Optionally, the distance from the outer edge of the vertical projection of the pressing surface onto the toothpaste container to the outer edge of the cross-section of the toothpaste container is not greater than 10 mm;

[0013] And / or, the ratio of the area of ​​the vertical projection of the pressing surface onto the toothpaste container to the cross-sectional area of ​​the toothpaste container is not less than 0.8 and not greater than 1.2.

[0014] By adopting the above technical solution, the distance between the edge of the pressing surface and the edge of the toothpaste container is reduced, resulting in a more compact overall structure of the toothpaste dispensing device, saving space. Furthermore, the user's hand can rest on the pressing surface during pressing, reducing slippage. Maintaining a ratio between 0.8 and 1.2 ensures pressing stability and efficiency while avoiding an excessively large or small pressing surface. Since the area of ​​the pressing surface is nearly equal to the cross-sectional area of ​​the toothpaste container, it is easy to operate and suitable for blind pressing with the user's palm. Users can apply pressure more evenly during operation, reducing uneven toothpaste dispensing or inconsistent dispensing volume caused by uneven pressing.

[0015] Optionally, the pressing part is a soft rubber component.

[0016] By adopting the above technical solution, the pressing part has good elasticity and flexibility, and the user feels comfortable when pressing.

[0017] Optionally, the pressing part is connected to the toothpaste container and is covered by the pump body.

[0018] By adopting the above technical solution, it is possible to effectively prevent dust, bacteria, and other contaminants from entering the pump body, maintaining the hygiene of the toothpaste. Reducing direct contact between the pump body and the external environment minimizes the possibility of toothpaste contamination, ensuring its hygiene. The press cover, located outside the pump body and connected to the toothpaste container, provides a larger pressing area. This allows users to apply pressure more easily when pressing, reducing inconvenience caused by a small pressing area.

[0019] The enclosed design allows for a reduction in pump size. A smaller pump dispenses less toothpaste per press, preventing children from squeezing out too much and wasting it. This design also suits adult users, allowing for better control of toothpaste usage and meeting the needs of different users.

[0020] Optionally, the pressing part is at least partially spaced from the pump body.

[0021] By adopting the above technical solution, the gap between the pressing part and the pump body provides the 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. This design allows the pump body to deform more smoothly under pressing pressure, reducing the risk of damage caused by excessive squeezing. Because the pump body can deform more smoothly during pressing, the paste can be pumped out more easily.

[0022] Optionally, the pressing part contacts the pump body, or the distance between the pressing part and the pump body is no greater than 3mm.

[0023] By adopting the above technical solution, the close contact or proximity between the pressing part and the pump body allows 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 toothpaste more efficiently. By reducing the pressing stroke, users can operate more easily during use, reducing the force required to press, which is especially suitable for users with less strength, such as children or the elderly.

[0024] Optionally, the pump body assembly further includes:

[0025] A rigid connecting part is used to connect the pressing part and the pump body.

[0026] By adopting the above technical solution, the rigid connecting part serves to fix the pressing part to the pump body, preventing it from falling off or shifting, while ensuring a tight seal between the two. Through the cooperation of the mating part and the rigid connecting part, a tighter and more 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 dispensing device.

[0027] Optionally, the pressing part includes an elastic outer cover and a raised rib:

[0028] The ribs are provided on the inner wall surface of the elastic outer cover.

[0029] By adopting the above technical solution, the design of the raised ribs can increase the elastic deformation range of the elastic outer cover, allowing the pressing part to more effectively return to its initial state after being subjected to external force. This design is similar to introducing pre-strain into the material; through the action of the raised ribs, the material can better maintain its elastic properties after deformation, thereby improving the overall ability to recover from deformation.

[0030] Optionally, the rib includes:

[0031] A first rib protrudes from the inner wall surface of the elastic outer cover; a portion of the first rib extends along a second direction, and the remaining first ribs extend along a third direction, which is perpendicular to the second direction; and / or

[0032] The second rib protrudes from the inner wall surface of the elastic outer cover and extends circumferentially along the pressing part. The second rib is connected to the bottom end of the first rib.

[0033] By adopting the above technical solution, the first ribs intersect on the inner wall of the elastic outer cover, forming an interlaced grid structure. Understandably, the elastic outer cover with the first ribs forms a more robust skeletal structure, better resisting compressive and torsional forces from all directions, allowing the elastic outer cover to recover its flatness after being subjected to external force, thus improving the service life of the toothpaste dispensing device. The second rib connects to the bottom end of the first rib, providing support for it. This mutually supporting design disperses and bears the external force applied to the first rib, avoiding stress concentration, increasing the overall stability of the pressing part, and ensuring that the pressing part remains in the correct position during pressing.

[0034] Optionally, it also includes:

[0035] An intermediate connector is provided, through which the pump assembly is connected to the toothpaste container.

[0036] By adopting the above technical solution, the intermediate connector acts as a bridge, which can enhance the stability and connection strength of the toothpaste supply device, while providing better sealing performance.

[0037] Optionally, the intermediate connector includes a protrusion that protrudes relative to the outer peripheral surface of the toothpaste container, the protrusion being annularly arranged and surrounding the outer periphery of the toothpaste container; and / or,

[0038] The top surface of the intermediate connector is either flat or curved.

[0039] By adopting the above technical solution, the protrusion can form a tight fit with the outer circumference of the toothpaste container, preventing the intermediate connector from loosening or shifting during use. The top surface of the intermediate connector is flat, facilitating connection and installation with other components, especially when it needs to fit with other planar structures, ensuring good contact and stability. Furthermore, the planar connection structure exhibits relatively uniform stress distribution under load, improving the reliability and stability of the connection. If the top surface of the intermediate connector is curved, since both the top surface of the intermediate connector and the pressing part can serve as the surface on which the user applies pressure, the curved design better conforms to the natural curve of the user's hand, making the pressing action more natural and comfortable. Moreover, the curved design allows for a more natural transition between the intermediate connector and the pressing part, creating a unified visual effect and enhancing the overall aesthetics of the product.

[0040] Optionally, the intermediate connector further includes a temporary storage cavity located between the pump body and the toothpaste container, and the temporary storage cavity connects the pump body and the toothpaste reservoir. The pump body assembly further includes:

[0041] An internal one-way valve is provided in the temporary storage chamber, and the opening direction of the internal one-way valve is from the paste storage chamber to the temporary storage chamber.

[0042] By employing the above technical solution, the one-way valve inside the cavity can prevent toothpaste from flowing back from the temporary storage cavity into the toothpaste reservoir. This reduces the risk of bacterial growth and contamination, ensuring the hygiene of the toothpaste during use.

[0043] Optionally, the intermediate connector includes a protrusion that protrudes relative to the outer peripheral surface of the toothpaste container, and the toothpaste outlet is located on the protrusion.

[0044] By adopting the above technical solution, since the protrusion extends from the outer periphery of the toothpaste container, and the dispensing nozzle is located on the protrusion, with a certain distance between it and the toothpaste container, interference between the dispensing nozzle and the toothpaste container can be avoided, making the toothpaste dispensed from the nozzle more hygienic. Users can more easily access the dispensing nozzle without being blocked by the main body of the toothpaste container. This design improves the ease of use of the toothpaste dispensing device.

[0045] Optionally, the intermediate connector includes:

[0046] The top wall has an installation opening through which the pump body passes into the intermediate connector.

[0047] The bottom wall is positioned opposite and spaced apart from the top wall; and

[0048] A peripheral sidewall, connecting the top wall and the bottom wall;

[0049] The ointment outlet is located on the top wall, the bottom wall, or the peripheral wall.

[0050] By adopting the above technical solution, the toothpaste dispensing nozzle is located at the top of the intermediate connector, on its upper surface, without obstruction. The nozzle's position is prominent, making it easy for users to identify and dispense toothpaste. Furthermore, the nozzle's location on the bottom wall allows the toothpaste to fall naturally after being squeezed out, reducing toothpaste residue on the outer wall of the intermediate connector. The nozzle's location on the peripheral side wall is also more noticeable than a bottom-mounted nozzle, preventing users from directly touching it when pressing the pump.

[0051] Optionally, the toothpaste outlet is located at the junction of the bottom wall and the peripheral side wall, and the toothpaste outlet is spaced apart from the outer peripheral surface of the toothpaste container.

[0052] By adopting the above technical solution, on the one hand, it can effectively prevent users from accidentally touching the toothpaste nozzle with their fingers when pressing the pump, thus keeping the nozzle clean and preventing dirt from contaminating the toothpaste. On the other hand, the nozzle on the lower side utilizes gravity, causing the squeezed toothpaste to fall naturally downwards, making it less likely to remain on the nozzle wall. This not only makes it convenient for users to use but also reduces toothpaste waste. It also ensures that the nozzle does not stick tightly to the outer wall of the toothpaste container, providing sufficient space for the toothbrush head and preventing interference with the outer wall of the toothpaste container. It also prevents the toothpaste from directly contacting the outer wall of the container when squeezed out, thus keeping the toothpaste container clean.

[0053] Optionally, in the radial direction of the toothpaste container, the distance between the toothpaste outlet and the outer peripheral surface of the toothpaste container is not less than 10 mm and not more than 30 mm.

[0054] By adopting the above technical solution, the user's toothbrush head can be conveniently placed near the toothpaste dispensing nozzle without interfering with the outer surface of the toothpaste container. This reduces contact between the toothbrush head and the outer surface of the toothpaste container, lowers the risk of contamination, and ensures the hygiene of the toothpaste during use.

[0055] Optionally, the ointment outlet is inclined downwards, and the angle between the central axis of the ointment outlet and the horizontal plane is not less than 15 degrees and not greater than 75 degrees.

[0056] By adopting the above technical solution, if the angle between the central axis of the toothpaste nozzle and the horizontal plane is less than 15 degrees, the nozzle is too close to the horizontal direction, and the toothpaste may splash in all directions during dispensing, leading to inconvenience and waste. When the angle is too large (greater than 75 degrees), the nozzle is too vertically downward, and the toothpaste may be squeezed out too quickly under the action of gravity and pressure. Users may not have enough time to accurately apply the toothpaste to the toothbrush, resulting in waste and contamination. Furthermore, if the nozzle is too vertical, the internal dispensing channel from the pump body to the nozzle may require a large bend angle. This will cause the toothpaste to encounter resistance during flow, easily accumulating at the bends, which may cause blockage with long-term use.

[0057] Optionally, the pump assembly further includes a paste outlet conduit, the paste outlet conduit comprising:

[0058] The pipeline body is connected to and communicates with the pump body; and

[0059] A paste outlet check valve is connected to the end of the pipeline body away from the pump body and has the paste outlet.

[0060] By adopting the above technical solution, the toothpaste dispensing check valve allows the toothpaste to flow out of the dispensing port from the pipe body, preventing toothpaste from flowing back into the pipe body from the dispensing port. This reduces the possibility of external contaminants flowing into the pipe body through the dispensing port, further enhancing the hygiene of the product.

[0061] Optionally, the bottom of the pressing part has a clearance notch for avoiding the ointment dispensing channel.

[0062] By adopting the above technical solution, the presence of the clearance notch ensures that the pressing part will not interfere with or rub against the dispensing channel when the cap is closed, thus guaranteeing that the paste can be smoothly extruded from the dispensing channel without difficulty or interruption in dispensing due to the squeezing of the pressing part. Furthermore, during assembly, the presence of the clearance notch makes it easier for the dispensing channel to pass through the pressing part, simplifying the assembly process.

[0063] Optionally, the top of the toothpaste container has an opening communicating with the toothpaste reservoir, and the bottom of the toothpaste container has an air pressure balancing hole; the pump assembly further includes:

[0064] An internal check valve is disposed within the pump body, the opening direction of the internal check valve being from the toothpaste storage chamber to the pump body; and a piston is slidably connected to the toothpaste container and located within the toothpaste storage chamber, the opening being located on one side of the piston, and the air pressure balance hole being located on the other side of the piston.

[0065] 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 air pressure balance inside and outside the container. This helps avoid problems such as pumping difficulties or toothpaste not being able to be squeezed out smoothly due to air pressure differences. The one-way valve inside the pump opens from the storage chamber to the pump body, ensuring that toothpaste can only flow from the storage chamber to the pump body and not flow in the opposite direction. The piston setting ensures that the toothpaste in the storage chamber is stably replenished into the pump chamber. Attached Figure Description

[0066] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0067] Figure 1 This is a schematic diagram of the toothpaste supply device in one embodiment of this application;

[0068] Figure 2 This is a schematic diagram of the toothpaste supply device in another embodiment of this application;

[0069] Figure 3 This is an exploded view of a toothpaste supply device in one embodiment of this application;

[0070] Figure 4 This is an exploded view of the toothpaste supply device in one embodiment of this application from another angle;

[0071] Figure 5 for Figure 1 A schematic diagram of the toothpaste supply device from another angle;

[0072] Figure 6 for Figure 5 A cross-sectional view of the toothpaste supply device along section AA.

[0073] Figure 7 This is a partial cross-sectional schematic diagram of a toothpaste supply device in one embodiment of this application;

[0074] Figure 8 This is a schematic diagram of the pressing part in one embodiment of this application;

[0075] Figure 9 for Figure 8 A cross-sectional view of the pressing part along the BB section;

[0076] Figure 10 This is a schematic diagram of the toothpaste supply device in another embodiment of this application;

[0077] Figure 11 This is a schematic diagram of the structure of the intermediate connector in one embodiment of this application;

[0078] Figure 12 for Figure 11 A cross-sectional view of the intermediate connector along the CC section;

[0079] Figure 13 This is a schematic diagram of the piston structure in one embodiment of this application;

[0080] Figure 14 for Figure 13 A cross-sectional view of the piston along the DD section;

[0081] Figure 15 This is a schematic diagram of the pump body and paste outlet pipe in one embodiment of this application.

[0082] Explanation of reference numerals in the attached figures:

[0083] 100. Toothpaste supply device; 10. Toothpaste container; 10a. Toothpaste storage chamber; 10b. Opening; 10c. Air pressure balance hole; 20. Piston; 21. Main body; 211. Main board; 212. First stepped ring; 2121. First connecting part; 2122. First upper extension; 213. Second stepped ring; 2131. Second connecting part; 2132. Second upper extension; 22. First surrounding ring; 23. Second surrounding ring; 30. Pump body assembly; 31. Pump body; 31a. Pump chamber; 31b. Temporary storage chamber; 311. Elastic section; 3111. Pleated structure; 312. Toothpaste dispensing section; 313. Fitting part; 314. Fastening part; 315. Sleeve part; 32. Toothpaste dispensing pipe; 32a. Toothpaste outlet; 321. Pipe body; 322. 33. Pressing part; 33a. Clearance notch; 33b. Annular groove; 331. Elastic outer cover; 332. Rib; 3321. First rib; 3321a. Snap-fit ​​groove; 3322. Second rib; 3323. Third rib; 34. Rigid connecting part; 40. Pump internal check valve; 50. Cavity internal check valve; 60. Intermediate connecting part; 60a. Protrusion; 61. Top wall; 61a. Mounting opening; 62. Bottom wall; 62a. Connecting port; 62b. Annular clearance groove; 62a1. Inner groove wall; 62a2. Outer groove wall; 63. Peripheral side wall; 64. Annular protrusion; 641. Limiting part; 65. Mounting platform; 66. Limiting protrusion; 70. Fixing part; 71. First fixing part; 72. Second fixing part. Detailed Implementation

[0084] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0085] Please see Figure 1 and Figure 2 This application relates to a toothpaste supply device 100, which is a device for storing and dispensing toothpaste.

[0086] like Figures 1-3 The toothpaste dispensing device 100 includes a toothpaste container 10 and a pump assembly 30. The toothpaste container 10 is the main body of the toothpaste dispensing device 100 and can be placed on a countertop. The toothpaste container 10 can be cylindrical, cuboid, conical, or other irregular shapes. The toothpaste container 10 has a toothpaste storage cavity 10a for storing toothpaste, and the volume of the toothpaste storage cavity 10a can be set according to actual needs, for example, 60ml-150ml.

[0087] Please continue reading. Figures 1-3The pump assembly 30 is connected to the toothpaste container 10. The pump assembly 30 is located at the top of the toothpaste container 10, partially inside the container and partially exposed above it. The pump assembly 30 is used to pump toothpaste from the toothpaste reservoir 10a. The pump assembly 30 can be fixedly connected to the toothpaste container 10 via threaded connection, snap-fit ​​connection, or other connection methods to ensure a secure and airtight connection.

[0088] Pump assembly 30 includes pump body 31, pressing part 33, and toothpaste outlet 32a. Pump body 31 is connected to toothpaste container 10, and pump body 31 has pump chamber 31a (e.g., Figure 6 The pump chamber 31a stores a portion of toothpaste, and the toothpaste outlet 32a is located circumferentially on the outer wall of the toothpaste supply device 100, making it convenient for the user to hold the toothbrush and catch the toothpaste at the outlet 32a. The pump chamber 31a is connected to the toothpaste storage chamber 10a and the toothpaste outlet 32a. Understandably, toothpaste can flow from the toothpaste storage chamber 10a into the pump chamber 31a, and be squeezed out through the outlet 32a after being squeezed by external force.

[0089] The pressing part 33 can be separately installed from the pump body 31 or be part of the pump body 31. In one configuration, the separate connection design makes it easier to repair or replace the pressing part 33 if it is damaged, without having to replace the entire pump body 31.

[0090] In another configuration, the pressing part 33 is part of the pump body 31. The pressing part 33 can be the portion of the pump body 31 facing away from the toothpaste container 10; that is, the pressing part 33 is formed from a portion of the pump body 31. The pressing part 33 and the pump body 31 can be integrally molded using the same material, ensuring material compatibility and structural stability. Commonly used materials include rubber, which has good elasticity and wear resistance. In terms of molding processes, injection molding, extrusion molding, etc., can be used to ensure a tight connection between the pressing part 33 and the pump body 31, eliminating the risk of delamination or breakage. This direct integration of the pressing part 33 with the pump body 31 reduces the number of parts, simplifies the structure, and lowers manufacturing costs.

[0091] The toothpaste container 10 can be cylindrical. Understandably, the flat cylindrical portion is designed for placement on a countertop, preventing the container from tipping over during use. Its smooth, rounded sides eliminate sharp edges or protrusions, reducing the risk of scratches to the user from contact with sharp corners. The toothpaste container 10 can be placed vertically on the countertop. The press part 33 is located at one end along the axial direction of the toothpaste container 10, specifically at the top, on the side facing away from the countertop. This allows the user to directly access and operate the toothpaste container.

[0092] When the pressing part 33 is subjected to external force, it can cause the pump body 31 to deform and dispense toothpaste from the dispensing nozzle 32a. The pressing part 33 has a pressing surface, which is configured to be pressed to pump the toothpaste out of the storage chamber 10a. The user only needs to press the pressing surface of the pressing part 33 to cause the pump body 31 to deform and pump the toothpaste out from the dispensing nozzle 32a, eliminating the need to manually squeeze the toothpaste tube as with traditional toothpaste, making it more convenient and faster to use. Furthermore, by controlling the dispensing through the pressing action of the pressing part 33, the amount of toothpaste dispensed can be precisely controlled according to the pressing pressure, avoiding the waste of toothpaste caused by excessive squeezing, as is common with traditional toothpaste.

[0093] If the toothpaste supply device 100 is placed vertically on a table, the pressing surface of the pressing part 33 can be configured to be located above the toothpaste container 10, allowing the user to apply pressure directly to the pressing part 33 from top to bottom; if the toothpaste supply device 100 is mounted on a wall, the pressing surface of the pressing part 33 can be configured to be located on the side of the toothpaste container 10, facing the user, allowing the user to apply pressure directly to the pressing part 33 towards the wall.

[0094] At least a portion of the pump body 31 is made of soft rubber, such as silicone or thermoplastic elastomer. This soft rubber has good elasticity and flexibility, allowing it to deform under external force and return to its original shape after the force is removed. This provides a gentle touch when the user presses the toothpaste dispensing device 100, reducing discomfort during pressing. Furthermore, the soft rubber returns to its original shape after the external force is removed, and the pressing part 33 returns to its original position, preparing for the next press.

[0095] The design of the pump body 31, which is at least partially made of soft rubber, allows the user to more easily deform the pump body 31 when pressing, thereby pumping out the toothpaste from the pump chamber 31a. Compared to a pump body 31 made entirely of hard material, this design reduces the force required for the user to press, making it especially suitable for users with less strength, such as children or the elderly, and more convenient to use.

[0096] In one configuration, the area of ​​the pressing surface of the pressing part 33 is not less than 350 mm². 2 The area of ​​the pressing surface itself (i.e., the surface area directly used for pressing) is at least 350 square millimeters. Increasing the area of ​​the pressing surface significantly reduces the force required for the user to press. This makes it easier for users, especially children and users with weaker hand strength, greatly improving the user experience. Understandably, a larger pressing surface can generate a more even air pressure difference, allowing the toothpaste to be pumped more smoothly from the toothpaste reservoir 10a, reducing uneven dispensing and toothpaste residue.

[0097] Furthermore, the larger pressing surface is easier to reach, making it easier for users to find the pressing position and apply force. The larger pressing surface also increases the contact area between the fingers or palm and the pressing part 33, making the pressing more stable and thus improving the stability of toothpaste dispensing from the toothpaste dispensing device 100.

[0098] If the pump surface is less than 350 square millimeters, the smaller area means users need to apply more force to generate enough pressure to pump out the toothpaste. This can be strenuous for users, especially children, the elderly, or those with weaker hand strength. The smaller pump surface also requires greater precision in application; otherwise, uneven pressure or ineffective pumping may occur, further increasing the difficulty of use.

[0099] In another configuration, the pressing surface has a dimension of at least 25mm in the first direction, which is perpendicular to the pressing direction of the pressing part 33. A larger pressing surface (with a dimension of at least 25mm in the first direction perpendicular to the pressing direction) provides a larger contact area. This means that when the user presses, the force can be distributed more evenly, reducing the pressure on the fingertips or palm, thereby improving pressing comfort and avoiding discomfort or pain caused by prolonged use. Furthermore, the larger pressing surface increases the contact area between the fingers or palm and the pressing part 33, increasing friction and making the pressing process more stable, less prone to slipping or loss of control.

[0100] For example, in one embodiment, the user squeezes out toothpaste by pressing from top to bottom. At this time, the pressing direction is vertically downward, and 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 25mm, 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 [value missing]. Since different users have different hand sizes, it is specified that the size of the pressing surface in the horizontal direction is not less than [value missing], so that users can make blind pressure with their palms.

[0101] In another configuration, the area of ​​the pressing surface is not less than 350 mm². 2 Furthermore, the size of the pressing surface in the first direction is not less than 25mm, and the first direction is perpendicular to the pressing direction of the pressing part 33, which can achieve the optimization effect of the above two settings, and will not be elaborated here.

[0102] like Figure 3 and Figure 4As shown, to enable the pump body 31 to quickly recover after being subjected to external pressure, in some embodiments, a pleated structure 3111 is provided on the peripheral wall of the pump body 31. This pleated structure 3111 includes at least one of a sawtooth pleated structure 3111 and a wavy pleated structure 3111. When subjected to external pressure, the stress is distributed along the edges of the sawtooth. This structure causes the stress to concentrate at the tips and edges of the pleats. When the external force is removed, the pleated structure 3111 can recover to its original shape through its elastic deformation. This is because the geometry of the sawtooth pleated structure 3111 allows the material to undergo elastic deformation under stress, 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 geometry, distributes stress along the undulations of the waves when subjected to external pressure. The periodicity and symmetry of the wavy pleats allow stress and strain to be evenly distributed during the stress and recovery process, reducing material fatigue and damage. The pump body 31 is linked to the pressing part 33 and resets, preparing for the user's next press.

[0103] In other embodiments, the pump body assembly 30 further includes an elastic element, which may be sleeved on the outer periphery of the pump body 31, disposed within the pump cavity 31a, or embedded within the pump body 31. Specifically, the elastic element is a spring, and such elastic elements have significant elastic recovery capabilities. Under the action of external force, the spring can undergo elastic deformation, and when the external force is removed, the spring can quickly return to its initial state. This allows the pump body 31 to quickly return to its original shape after being subjected to external forces such as pressing, preparing it for the next use.

[0104] To provide a softer feel when pressed, in some embodiments, the pressing part 33 is made of soft rubber, such as food-grade silicone, which has good elasticity and flexibility, providing a comfortable feel when pressed. Users can operate it in various ways, such as pinching and squeezing, rather than simply pressing. This design increases operational flexibility, making it especially suitable for users with different usage habits. For example, users can press with their fingers from different angles or squeeze by holding the pressing surface to dispense toothpaste. This design increases the flexibility and convenience of use, making it particularly suitable for users with different usage habits.

[0105] In some embodiments, at least a portion of the pressing surface is curved or flat. A flat pressing surface guides the user to press correctly, provides a stable pressing experience, reduces shaking during pressing, and is suitable for scenarios requiring precise control of pressing force. A pressing surface with at least a curved design can be configured to better conform to the natural curvature of the human finger, and the curved 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 curved surface setting includes a hemispherical pressing surface and a spherical pressing surface. For example, the pressing surface can be a hemispherical surface that arches towards the side opposite to the toothpaste container 10. Furthermore, a setting with at least a curved surface allows users to press from multiple directions, providing greater operational flexibility.

[0106] In one configuration, the distance from the outer edge of the vertical projection of the pressing surface onto the toothpaste container 10 to the outer edge of the cross-section of the toothpaste container 10 is no more than 10mm. This makes the distance between the edge of the pressing surface and the edge of the toothpaste container 10 relatively close, resulting in a more compact overall structure of the toothpaste supply device 100, saving space. Furthermore, when the user presses the toothpaste, their hand can be placed on the pressing surface, reducing the occurrence of slippage during pressing.

[0107] When the user's hand presses on the edge of the pressing surface, this design can effectively prevent the toothpaste container 10 from slipping or tipping over, further improving the safety of use.

[0108] In another configuration, the ratio of the area of ​​the vertical projection of the pressing surface onto 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. This ensures the stability and efficiency of pressing while avoiding the pressing surface being too large or too small. Since the area of ​​the pressing surface is almost equal to the cross-sectional area of ​​the toothpaste container 10, it is easy to operate and suitable for blind pressing with the user's palm. Users can apply pressure more evenly during operation, reducing uneven pressing that can lead to uneven toothpaste dispensing or unstable toothpaste volume.

[0109] If the ratio of the area of ​​the vertical projection of the pressing surface onto 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 it precisely when pressing. If the ratio is greater than 0.8, the toothpaste dispensing device 100 will have an overall uneven appearance, and the user may easily slip it while pressing, resulting in uneven pressing or ineffective toothpaste dispensing. Therefore, controlling the ratio between 0.8 and 0.8 ensures both ease of operation and stable pressing and uniform toothpaste dispensing.

[0110] 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 not greater 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 not less than 0.8 and not greater than 1.2. This combines the advantages of the two designs mentioned above, ensuring both 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 toothpaste dispensing.

[0111] To further ensure that the toothpaste container 10 can be placed stably on the countertop, in some embodiments, the bottom of the toothpaste container 10 is provided with an anti-slip structure. This anti-slip structure can be an anti-slip texture or anti-slip protrusion on the bottom of the toothpaste container 10, or an anti-slip pad can be added to the bottom of the toothpaste container 10. Providing an anti-slip structure increases the friction between the toothpaste container 10 and the countertop, reducing the possibility of slippage and making the toothpaste dispensing device 100 more stable during use and less prone to tipping over.

[0112] like Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the toothpaste supply device 100 also has a temporary storage chamber 31b, and the pump body 31 has a pump chamber 31a. The temporary storage chamber 31b is located between the toothpaste storage chamber 10a and the pump chamber 31a. The pump chamber 31a can be connected to the toothpaste storage chamber 10a in sequence through the temporary storage chamber 31b. The temporary storage chamber 31b is a relatively smaller cavity than the toothpaste storage chamber 10a. The toothpaste in the temporary storage chamber 31b can respond quickly and enter the pump chamber 31a, ensuring a continuous supply of toothpaste when pressed multiple times.

[0113] In some embodiments, the pump body assembly 30 further includes an internal check valve 40, which is disposed inside the pump body 31. The opening direction of the internal check valve 40 is from the toothpaste 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 toothpaste from flowing back into the temporary storage chamber 31b.

[0114] In some embodiments, the pump assembly 30 further includes a piston 20 slidably connected to the toothpaste container 10 and located within the toothpaste reservoir 10a, sealingly connected to the wall of the reservoir 10a. A portion of the piston 20 forms the bottom wall 62 of the reservoir 10a. Understandably, the piston 20 moves up and down within the reservoir 10a to form a dynamic seal, thereby effectively propelling the toothpaste flow. The piston 20 is typically made of an elastic material (such as silicone or rubber) to ensure it fits tightly against the inner wall of the reservoir 10a, forming a good seal.

[0115] Please continue reading. Figure 4 , Figure 5 and Figure 6Specifically, the one-way valve 40 inside the pump is a duckbill valve with an inverted "V" shaped vertical cross-section. It is connected inside the pump body 31, with a storage chamber 31b below and a pump chamber 31a above. The opening 10b of the duckbill valve faces the pump chamber 31a, playing a crucial one-way flow guiding role. When toothpaste in the pump chamber 31a attempts to flow back into the storage chamber 31b, the opening 10b of the duckbill valve is closed to prevent this flow, ensuring that the toothpaste can only flow in one direction. When the piston 20 in the toothpaste storage chamber 10a moves towards the one-way valve 40, the pressure increases, and the opening 10b of the duckbill valve opens, allowing toothpaste to flow from the storage chamber 31b into the pump chamber 31a. After the pressure stabilizes, the opening 10b of the duckbill valve returns to its initial state and closes again, preventing toothpaste in the pump chamber 31a from flowing back into the storage chamber 31b.

[0116] Please continue reading. Figure 4 , Figure 5 and Figure 6 In some embodiments, the pump assembly 30 further includes an internal one-way valve 50 disposed within the temporary storage chamber 31b. The opening direction of the internal one-way valve 50 is from the toothpaste storage chamber 10a to the temporary storage chamber 31b, thus preventing toothpaste from flowing back from the temporary storage chamber 31b into the toothpaste storage chamber 10a. This reduces the risk of bacterial growth and contamination, ensuring the hygiene of the toothpaste during use.

[0117] The one-way valve 50 inside the cavity has a dual function: on the one hand, it allows toothpaste to flow from the storage cavity 10a to the pump cavity 31a, but prevents toothpaste from flowing back from the pump cavity 31a into the 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 one-way valve 50 inside the cavity can effectively prevent the toothpaste in the temporary storage cavity 31b from flowing back into the storage cavity 10a, further ensuring the smoothness and hygiene of toothpaste dispensing.

[0118] As can be seen from the above, the one-way valve 40 inside the pump and the one-way valve 50 inside the cavity can effectively prevent toothpaste from flowing back into the toothpaste storage cavity 10a during use, thus avoiding toothpaste contamination.

[0119] Please continue reading. Figure 3 and Figure 4 In this device, a pressure balance chamber is formed between the bottom of the toothpaste container 10 and the piston 20. The bottom wall of the toothpaste container 10 has a pressure balance hole 10c, which is located below the piston 20. The pressure balance hole 10c is connected to the outside world and the pressure balance chamber, allowing external air to enter or exit the pressure balance chamber, thereby maintaining pressure balance.

[0120] Under normal circumstances, the air pressure on both sides of piston 20, namely the toothpaste storage chamber 10a and the air pressure balance chamber, is balanced. When toothpaste is discharged from the toothpaste storage chamber 10a, the volume of the toothpaste storage chamber 10a suddenly decreases, causing the air pressure inside the toothpaste storage chamber 10a to drop instantaneously (forming a local negative pressure). At this time, due to the direct connection of the air pressure balance hole 10c, the air pressure balance chamber below piston 20 still maintains the external atmospheric pressure (air is replenished instantly through the balance hole). The resulting air pressure difference is that the air pressure below piston 20 (atmospheric pressure) is greater than the air pressure above piston 20 (negative pressure). According to the principles of gas mechanics, this pressure difference will generate an upward net force on the surface of piston 20, pushing piston 20 towards pump body 31. As the piston 20 moves upward, the volume of the toothpaste storage chamber 10a is further compressed by the piston 20, and toothpaste is output to the temporary storage chamber 31b. The volume of the pressure balance chamber increases accordingly. If there is no balance hole, a vacuum negative pressure will be formed. At this time, outside air flows into the pressure balance chamber through the pressure balance hole 10c at the bottom, always maintaining its internal air pressure equal to atmospheric pressure, thereby eliminating the downward suction resistance to the movement of the piston 20.

[0121] This design essentially converts atmospheric pressure into driving force: after each toothpaste squeeze, the negative pressure in the toothpaste reservoir 10a is automatically compensated by the piston 20 moving upward, while the pressure balance chamber continuously receives air pressure replenishment through the pressure balance vent, forming a sustainable unidirectional drive system. When squeezing stops, the displacement of the piston 20 has compensated for the volume loss in the toothpaste reservoir 10a, and the system returns to a pressure balance state.

[0122] When the user presses the pump body 31, the volume of the pump chamber 31a decreases, the internal air pressure increases, and the one-way valve 40 inside the pump closes under pressure, blocking the connection between the temporary storage chamber 31b and the pump chamber 31a, thus preventing toothpaste from flowing back into the temporary storage chamber 31b. Furthermore, because the one-way valve 50 inside the chamber is closed, the toothpaste will not flow back into the storage chamber 10a through the temporary storage chamber 31b. The only outlet for the high-pressure toothpaste in the pump chamber 31a is the dispensing port 32a. Therefore, the toothpaste in the pump chamber 31a is squeezed out from the dispensing port 32a under pressure.

[0123] When the user releases the pump body 31, the pump body 31 returns to its original state, the volume of the pump chamber 31a increases, the internal air pressure decreases, forming a negative pressure. The negative pressure in the pump chamber 31a creates a pressure difference between the temporary storage chamber 31b (at normal pressure) and the pump chamber 31a (negative pressure). The one-way valve 40 inside the pump connects the temporary storage chamber 31b and the pump chamber 31a. The negative pressure in the pump chamber 31a draws in the toothpaste in the temporary storage chamber 31b, filling the expanded space of the pump chamber 31a. Meanwhile, the one-way valve 50 inside the chamber connects the pump chamber 31a and the toothpaste storage chamber 10a. Under atmospheric pressure, the piston 20 pushes the toothpaste in the toothpaste storage chamber 10a into the temporary storage chamber 31b, replenishing the amount of toothpaste drawn away by the pump chamber 31a. Since the volume of the pump chamber 31a is limited, it can only hold the amount of toothpaste needed for a single cleaning, and the amount of toothpaste needed for a single cleaning can be squeezed out with the user's next press.

[0124] In some embodiments, the pressing part 33 is connected to the pump body 31. The connection between the pressing part 33 and the pump body 31 allows them to share the pressure when subjected to force, reducing the risk of structural damage caused by uneven local stress. When the pressing part 33 is pressed, the pump body 31 and the pressing part 33 undergo elastic deformation together. This design ensures that after the pressing force is released, the pressing part 33 and the pump body 31 can quickly return to their initial state together.

[0125] Furthermore, the pressing part 33 can protect the pump body 31, reducing the possibility of dust and dirt directly contacting the pump body 31, making it more hygienic.

[0126] like Figure 5 and Figure 6 As shown, in some embodiments, the pressing part 33 is connected to the toothpaste container 10 and covers the pump body 31, which can effectively prevent dust, bacteria and other contaminants from entering 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 toothpaste contamination and ensures the hygiene of the toothpaste.

[0127] Because the pressing part 33 is located outside the pump body 31, meaning its cross-section is larger than that of the pump body 31, users can easily find the pressing position and press from multiple directions, increasing operational flexibility and convenience. Furthermore, the pressing part 33, being located outside the pump body 31 and connected to the toothpaste container 10, provides a larger pressing area. This allows users to apply pressure more easily, reducing inconvenience caused by a small pressing area, making it especially suitable for children. Children have relatively weak hand strength, and a larger pressing area makes it easier for them to squeeze out toothpaste.

[0128] The cover design allows for a reduction in the volume of the pump body 31. A smaller pump body 31 dispenses less toothpaste per press, helping to prevent children from squeezing out too much toothpaste at once and wasting it. At the same time, this design also suits adult users, allowing for better control of the amount of toothpaste used and meeting the needs of different users.

[0129] The inner diameter of the pressing part 33 is larger than the outer diameter of the pump body 31, allowing the pressing part 33 to cover the pump body 31. This provides a larger pressing area, which disperses the pressing pressure and reduces finger fatigue. Because the inner diameter of the pressing part 33 is larger than the outer diameter of the pump body 31, it provides better cushioning during pressing. The user experiences a gentler touch when pressing, reducing discomfort.

[0130] To control the amount of toothpaste dispensed with each press of the pump body 31, reduce toothpaste waste, and make it suitable for a single brushing session, the volume of the pump body 31 does not need to be set too large. Furthermore, while ensuring that the pump chamber 31a meets the single-use requirement, controlling the outer diameter of the pump body 31 can also save on the manufacturing materials of the pump body 31.

[0131] Furthermore, the inner diameter of the pressing part 33 is larger than the outer diameter of the pump body 31, which also allows the part of the pressing part 33, except for the connecting part, to be spaced apart from the pump body 31, reducing friction between the two, thereby reducing the wear rate of the components and extending the service life of the product. In addition, when the user presses the pressing part 33, there is no direct obstruction from the pump body 31, making the pressing action smoother and the operation more flexible.

[0132] In some embodiments, the volume of the pump chamber 31a is not less than 1 ml and not more than 8 ml. Reasonably limiting the volume of the pump chamber 31a ensures that an appropriate amount of toothpaste can be squeezed out with each press. The volume of the pump chamber 31a is designed to be within a certain range, which can meet the amount of toothpaste required for a single brushing while avoiding waste and health risks, and has high practicality and rationality.

[0133] In some embodiments, the volume of the pump chamber 31a is larger than the volume of the toothpaste dispensing channel 32, ensuring that in a single squeezing action, the toothpaste stored in the pump chamber 31a is sufficient to quickly fill the toothpaste dispensing channel 32 and be extruded from the dispensing nozzle 32a. If the volume of the dispensing channel 32 is larger, more toothpaste is needed to fill the channel, which may require multiple presses and delay the time it takes for the toothpaste to be extruded from the dispensing nozzle 32a. Therefore, by making the volume of the pump chamber 31a larger than the volume of the dispensing channel 32, it can be ensured that the toothpaste can be extruded quickly from the dispensing nozzle 32a.

[0134] Furthermore, the ratio of the volume of the pump chamber 31a to the volume of the toothpaste dispensing pipe 32 is not less than 4. By designing the ratio of the volume of the pump chamber 31a to the volume of the toothpaste dispensing pipe 32 to be not less than 4, it can be ensured that the toothpaste in the pump chamber 31a can quickly fill the toothpaste dispensing pipe 32 and be squeezed out from the toothpaste outlet 32a with one press, reducing the waiting time.

[0135] In some embodiments, the pressing part 33 and the pump body 31 are at least partially spaced apart. This spaced-apart arrangement provides a certain amount of room for movement for the pressing part 33 and the pump body 31, avoiding the impact on the stability of the overall structure due to excessive squeezing or deformation, and also providing a certain amount of deformation space for the pressing part 33 when subjected to force.

[0136] This design allows the pump body 31 to deform more smoothly when subjected to pressure, reducing the risk of damage due to excessive squeezing. Because the pump body 31 can deform more smoothly during pressing, the paste can be pumped out more easily.

[0137] 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 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 gap between the pressing part 33 and the pump body 31 provides a certain pressing stroke margin for the pressing action, so that the pressing part 33 will not directly act on the pump body 31 when the user presses it unintentionally, thereby avoiding the toothpaste being accidentally squeezed out due to accidental contact.

[0138] In one configuration, 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 lower hardness of the pressing part 33 results in a softer feel during operation, making it more comfortable to use and reducing pressure on the fingers. The soft pressing part 33 better conforms to the shape of the fingers, distributing pressure and avoiding discomfort from localized force, making it especially friendly to children or users with weak hand strength. When the user squeezes the pump body 31, the pressing part 33 provides a certain degree of cushioning, reducing discomfort during operation.

[0139] It should be noted that the deformation of the pressing part 33 is preferentially transmitted to the pump body 31 (rather than excessively deforming itself). This means that 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. This more efficiently drives the deformation of the soft rubber parts inside the pump body 31, achieving stable paste dispensing. If the pressing part 33 is too hard (such as hard plastic), it may cause insufficient deformation of the soft rubber parts of the pump body 31, resulting in unstable paste dispensing.

[0140] In another configuration, 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 home or public places, the thicker pressing part 33 can provide better durability and stability.

[0141] like Figure 6 , Figure 8 and Figure 9 As shown, in some embodiments, the pump body 31 includes a mating portion 313 disposed away from the toothpaste container 10. The pump body assembly 30 also includes a rigid connecting portion 34, which connects the pressing portion 33 and the pump body 31. The rigid connecting portion 34 is connected to the inner wall surface of the pressing portion 33, which is the side facing the pump body 31. The rigid connecting portion 34 is connected to the mating portion 313, and its function is to fix the pressing portion 33 to the pump body 31, preventing it from falling off or shifting, while ensuring a seal between the two. Through the cooperation of the mating portion 313 and the rigid connecting portion 34, a tighter and more stable connection is formed between the pressing portion 33 and the pump body 31, which can prevent the pressing portion 33 from accidentally falling off or shifting during use, ensuring the reliability and service life of the toothpaste supply device 100.

[0142] Understandably, the rigid connecting part 34 is a rigid component that enhances the connection strength with the mating part 313. The rigid component can withstand greater mechanical stress, reducing the risk of loosening or damage due to repeated pressing. During long-term use, the rigid component can better withstand repeated pressing operations, reducing wear and damage to the parts, thereby extending the product's service life.

[0143] The rigid connecting part 34 is connected to the inner wall surface of the pressing part 33. When the user presses the pressing part 33, the force is first applied to the pressing part 33, and then directly transmitted to the mating part 313 of the pump body 31 through the rigid connecting part 34. Since the rigid connecting part 34 is connected to the inner wall surface of the pressing part 33, this force transmission is direct and efficient, avoiding force dispersion or loss. After the pump body 31 is subjected to external force, it will deform accordingly. This deformation is the key to controlling the amount of toothpaste dispensed. 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 chamber 31a can be squeezed out through the toothpaste outlet 32a. Because the force transmission is more direct and efficient, the toothpaste dispensing efficiency is improved.

[0144] Furthermore, the rigid connecting part 34 can be snapped, screwed, or bonded to the mating part 313. Snapping is achieved through snap-fit ​​structures (such as protrusions and grooves) on the rigid connecting part 34 and the mating part 313, allowing direct molding onto the plastic part without the need for additional fasteners (such as screws and nuts), saving costs and enabling rapid assembly and disassembly, typically without tool assistance, thus improving production efficiency. Screwing uses threaded fasteners (such as bolts and nuts) to connect the rigid connecting part 34 and the mating part 313. The tightening force can be controlled by adjusting the bolt tightness, and it facilitates disassembly and maintenance. Bonding uses adhesive to connect the rigid connecting part 34 and the mating part 313. The adhesive can evenly distribute stress across the entire connection surface, reducing localized stress concentration.

[0145] Specifically, one of the rigid connecting part 34 and the mating part 313 is a protrusion, and the other is provided with a groove. For example, the pump body 31 has a protrusion on the side opposite to the toothpaste container 10, and the protrusion is arranged in a ring around 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 a fit. Through the fit of the protrusion and the groove, a tight connection between the two parts is achieved, ensuring that it will not loosen or detach during the pressing process.

[0146] The protrusion is embedded in the groove to achieve an interference fit. An interference fit means that when the protrusion is embedded in the groove, there is a certain amount of interference, resulting in a tight connection between the two components. This interference fit ensures a tight connection between the pressing part 33 and the pump body 31, reducing shaking and instability during pressing, and improving the consistency and reliability of the pressing action. The interference fit effectively prevents components from loosening due to frequent pressing or external impacts, extending the product's service life.

[0147] In some embodiments, the pressing part 33 contacts the pump body 31, or the distance between the pressing part 33 and the pump body 31 is no more than 3 mm. When the pressing part 33 is not squeezed, the close contact or close proximity between the pressing part 33 and the pump body 31 allows the pressing force applied by the user to the pressing part 33 to be transmitted more directly to the pump body 31. This design reduces the pressing stroke, allowing the user to 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.

[0148] In some embodiments, the pressing part 33 includes an elastic outer cover 331 and a rib 332. The elastic outer cover 331 is the main body of the pressing part 33 and covers the pump body 31, providing good elastic feedback. The elastic outer cover 331 can be separately installed from the pump body 31, meaning that the elastic outer cover 331 provides additional cushioning and greater 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 with different shapes to provide more diverse appearance designs and enhance the aesthetics of the product, such as a mushroom shape or a bear shape, to increase the fun of the toothpaste dispensing device 100's appearance.

[0149] When pressed by the user, the elastic outer cover 331 can undergo elastic deformation and quickly return to its original shape upon release, thus providing a comfortable pressing feel. A raised rib 332 is provided on the inner wall surface of the elastic outer cover 331, which is the wall surface of the elastic outer cover 331 facing the pump body 31. The raised rib 332 enhances the structural strength of the elastic outer cover 331 and reduces the risk of damage due to excessive deformation. The raised rib 332 also prevents fatigue damage caused by localized stress concentration during frequent use of the elastic outer cover 331, thereby extending the service life of the pressing part 33.

[0150] Furthermore, the design of the raised rib 332 can increase the elastic deformation range of the elastic outer cover 331, allowing the pressing part 33 to more effectively return to its initial state after being subjected to external force. This design is similar to introducing pre-strain into the material. Through the action of the raised rib 332, the material can better maintain its elastic properties after deformation, thereby improving the overall ability to recover deformation.

[0151] Please continue reading. Figure 6 , Figure 8 and Figure 9 In some embodiments, the rib 332 includes a first rib 3321, which protrudes from the inner wall surface of the elastic outer cover 331.

[0152] like Figure 7 As shown, in one configuration, 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 multiple radial support structures on the inner wall of the elastic outer cover 331. When the elastic outer cover 331 is pressed, the pressing force can be directly transmitted to the pump body 31 through the first rib 3321, improving the paste dispensing efficiency.

[0153] like Figure 8 and Figure 9 As shown, in another configuration, some of the first ribs 3321 extend along the second direction, while the remaining first ribs 3321 extend along the third direction, which is perpendicular to the second direction. That is, the first ribs 3321 intersect on the inner wall of the elastic outer cover 331, forming an interlaced mesh structure. Understandably, the elastic outer cover 331 with the first ribs 3321 forms a more robust skeletal structure, better resisting compressive and torsional forces from all directions. This allows the elastic outer cover 331 to recover its flatness after being subjected to external force, improving the service life of the toothpaste supply device 100.

[0154] Specifically, in this embodiment, the pressing direction is vertically downward, and the inner wall of the elastic outer cover 331 is an arc shape that arches away from the horizontal plane. The second direction and the third direction are both perpendicular to the pressing direction. Some of the first ribs 3321 extend parallel to a certain radial direction of the inner wall, and multiple first ribs 3321 are arranged at intervals along a direction perpendicular to the radial direction. The remaining multiple first ribs 3321 are intersected with the aforementioned first ribs 3321 to form an interlaced grid structure.

[0155] 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 fastening portion 314, and the other has a fastening groove 3321a. The fastening portion 314 and the fastening groove 3321a fasten together. The fastening portion 314 is a protruding part on the first rib 3321 or the pump body 31, and the fastening groove 3321a is a recessed part on the first rib 3321 or the pump body 31, used to accommodate the fastening portion 314 of another component. This ensures that the fastening portion 314 can be accurately embedded, ensuring precise alignment of the first rib 3321 and the pump body 31 during assembly, and improving assembly accuracy. The fastening fit ensures a tight connection between the pressing part 33 and the pump body 31, reducing shaking and instability during pressing, and improving the consistency and reliability of the pressing action.

[0156] Specifically, the first protruding rib 3321 is arranged in a ring to form a fastening groove 3321a. The top of the pump body 31 has a fastening part 314. The fastening part 314 and the fastening groove 3321a are fastened to each other in the vertical direction. The fastening structure makes the connection between the first protruding rib 3321 and the pump body 31 more secure, reducing the risk of loosening or falling off due to external force.

[0157] Please continue reading. Figure 6 , Figure 8 and Figure 9 In some embodiments, the rib 332 further includes a second rib 3322, which protrudes from the inner wall surface of the elastic outer cover 331 and extends circumferentially along the inner wall surface of the elastic outer cover 331. For example, when the elastic outer cover 331 is circular, the second rib 3322 extends circumferentially along the inner wall surface of the pressing part 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 unstable shaking of the elastic outer cover 331, ensuring the consistency and reliability of the pressing action.

[0158] 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 mutual support design can distribute and bear the external force applied to the first rib 3321, avoid stress concentration, increase the overall stability of the pressing part 33, and ensure that the pressing part 33 remains in the correct position during the pressing process.

[0159] like Figure 10As shown, in some embodiments, the rib 332 further includes a third rib 3323, which protrudes from the outer wall surface of the elastic outer cover 331 and can extend radially along the elastic outer cover 331. When the user presses the toothpaste dispensing device 100, their fingers or palm will contact the outer wall surface of the elastic outer cover 331. Without texture or protrusions, it is easy to slip when wet or with wet hands, resulting in inaccurate pressing or insufficient force. The third rib 3323 significantly improves friction by increasing the roughness of the contact surface, allowing the user to press the pressing part 33 more firmly.

[0160] Specifically, there may be two third ribs 3323, one of which is arranged in a cross shape with the other. The intersection of the cross-shaped third ribs 3323 can serve as a visual and tactile guide to help users find the center position of the press more accurately, ensuring that the pressing direction is consistent with the pressing direction of the pump body assembly 30, and avoiding problems such as poor paste dispensing or leakage caused by pressing deviation.

[0161] like Figure 6 , Figure 11 and Figure 12 As shown, in some embodiments, the toothpaste supply device 100 further includes an intermediate connector 60, which is connected between the toothpaste container 10 and the pressing part 33. The pump body assembly 30 is connected to the toothpaste container 10 through the intermediate connector 60. Specifically, the pump body 31 is partially inserted through the intermediate connector 60 to be sealed to the top of the toothpaste container 10. The intermediate connector 60 has the aforementioned temporary storage cavity 31b, which can communicate with the toothpaste storage cavity 10a and the pump cavity 31a. That is, the intermediate connector 60 acts as a bridge to ensure the communication between the pump cavity 31a and the toothpaste storage cavity 10a. Through the intermediate connector 60, the stability and connection strength of the overall structure can be enhanced, while providing better sealing performance.

[0162] In one configuration, 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.

[0163] In another configuration, the maximum outer contour of the intermediate connector 60 is larger than that of the toothpaste container 10. This means the intermediate connector 60 can cover the toothpaste container 10, and the larger outer contour better covers the top of the toothpaste container 10, providing better sealing performance, reducing the risk of toothpaste leakage, and ensuring the hygiene of the toothpaste during storage and use. Simultaneously, this design also provides support for the user's entire palm when pressing, reducing the difficulty of pressing and improving comfort and convenience.

[0164] In another configuration, the maximum outer dimension of the intermediate connector 60 is larger than the maximum outer dimension of the pump body assembly 30. Because the intermediate connector 60 exceeds the size of the pump body assembly 30, it can completely cover the circumference of the pump body assembly 30, serving as a more stable pressing base and enhancing the structural stability of the entire toothpaste dispensing device 100. This helps prevent the pump body assembly 30 from shaking or shifting during pressing, ensuring operational accuracy and reliability.

[0165] In some embodiments, the intermediate connector 60 includes a protrusion that protrudes relative to the outer peripheral surface of the toothpaste container 10. The protrusion is annularly arranged and surrounds the outer periphery of the toothpaste container 10, allowing for 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, improving product reliability. Furthermore, the protrusion provides a good seal with the outer peripheral surface of the toothpaste container 10, preventing toothpaste leakage.

[0166] Furthermore, in some embodiments, the toothpaste dispensing nozzle 32a is located on the protrusion. Since the protrusion extends outward from the outer periphery of the toothpaste container 10, and the nozzle 32a is positioned on the protrusion, thus maintaining a certain distance from the toothpaste container 10, interference between the nozzle 32a and the toothpaste container 10 can be avoided, making the toothpaste dispensed from the nozzle 32a more hygienic. Users can more easily access the nozzle 32a during use without being blocked by the main body of the toothpaste container 10. This design improves the product's usability.

[0167] In some embodiments, the top surface of the intermediate connector 60 is either flat or curved. A flat top surface facilitates connection and installation with other components, especially when it needs to fit with other planar structures, ensuring good contact and stability. Furthermore, the planar connection structure exhibits relatively uniform stress distribution under load, improving the reliability and stability of the connection. If the top surface of the intermediate connector 60 is curved, since both the top surface of the intermediate connector 60 and the pressing part 33 can serve as the surface on which the user applies pressure, the curved design better conforms to the natural curve of the user's hand, making the pressing action more natural and comfortable. Additionally, the curved design increases the contact area between the palm and the intermediate connector 60 when the user presses the pressing part 33, preventing excessive pressure concentration on the palm. Moreover, the curved design allows for a more natural transition between the intermediate connector 60 and the pressing part 33, creating a unified visual effect and enhancing the overall aesthetic of the product.

[0168] Please continue reading. Figure 6 , Figure 11 and Figure 12In some embodiments, the intermediate connector 60 includes a top wall 61, a bottom wall 62, and a peripheral side wall 63, wherein the top wall 61 is opposite to and spaced apart from the bottom wall, and the peripheral side wall 63 connects the top wall 61 and the bottom wall 62. The top wall 61 is located closer to the pressing part 33 than the bottom wall 62, and the bottom wall 62 is located closer to the toothpaste container 10 than the top wall 61.

[0169] The connection between the peripheral sidewall 63 and the top wall 61 is rounded, meaning that instead of a sharp right angle or acute angle, a smooth arc transition is used at the connection between the peripheral sidewall 63 and the top wall 61; or, the connection between the peripheral sidewall 63 and the bottom wall 62 is rounded, meaning that instead of a sharp right angle or acute angle, a smooth arc transition is used at the connection between the peripheral sidewall 63 and the top wall 61, and the connection between the peripheral sidewall 63 and the bottom wall 62 is also rounded. Through this rounded corner design, when the user presses the toothpaste dispensing device 100, the force applied to the top wall 61 can be more evenly transmitted to the peripheral sidewall 63 and the bottom wall 62, avoiding stress concentration and 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 users being scratched by sharp edges, improving product safety. In addition, the rounded corner design makes the appearance of the middle connector 60 more streamlined and beautiful, enhancing the overall visual effect of the product.

[0170] In this embodiment, the intermediate connector 60 can be manufactured by injection molding, and the rounded corner design also facilitates mold demolding, thus improving production efficiency.

[0171] like Figure 3 , Figure 6 and Figure 12As shown, in some embodiments, the middle part of the bottom wall 62 has a communication port 62a that communicates with the toothpaste container 10. The communication port 62a provides a channel through which the toothpaste in the toothpaste container 10 can communicate with the pump body 31. The intermediate connector 60 also includes an annular protrusion 64, which protrudes from the bottom wall 62 on the side opposite to the toothpaste container 10, i.e., the annular protrusion 64 protrudes towards the pressing part 33, and surrounds the connecting opening 62a. A sleeve part 315 is formed at the end of the pump body 31 near the toothpaste container 10, and the sleeve part 315 is fitted onto the outer periphery of the annular protrusion 64. The annular protrusion 64 forms a positioning and support structure for cooperating with the sleeve part 315 of the pump body 31. The sleeve part 315 is fitted onto the outer peripheral wall of the annular protrusion 64, providing 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 orientation. This achieves a tight connection between the pump body 31 and the intermediate connector 60, reducing shaking and loosening, and improving the overall structural stability.

[0172] The annular protrusion 64 and the bottom wall 62 together form a temporary storage cavity 31b. The one-way valve 50 is located at the bottom of the temporary storage cavity 31b. To restrict the movement of the one-way valve 50 within the temporary storage cavity 31b, the one-way valve 50 is embedded at the bottom of the temporary storage cavity 31b. A limiting part 641 is provided on the inner peripheral wall of the annular protrusion 64. The limiting part 641 can cooperate with the bottom wall 62 to restrict the displacement of the one-way valve 50 in the vertical direction, so that the one-way valve can effectively control the flow direction of toothpaste, prevent toothpaste backflow, and ensure that toothpaste can flow smoothly from the toothpaste storage cavity 10a to the pump body 31.

[0173] Please continue reading. Figure 6 , Figure 11 and Figure 12 In some embodiments, the top wall 61 has an installation opening 61a, which can be specifically located in the middle of the top wall 61. The pump body 31 passes through the installation opening 61a into the intermediate connector 60 and is sealed to the annular protrusion 64. That is, the installation opening 61a allows the pump body 31 to pass through the top of the intermediate connector 60, which facilitates assembly, simplifies the assembly process, eliminates the need to forcibly insert the pump body 31 from the side, avoids damage to the pump body 31, and facilitates automated assembly.

[0174] Furthermore, the bottom of the pressing part 33 has an annular stepped portion with an annular groove 33b. The wall of the mounting opening 61a is inserted into the annular groove 33b. That is, the annular groove 33b has a first groove wall and a second groove wall that are arranged opposite to each other. The first groove wall and the second groove wall can clamp the wall of the mounting opening 61a in the vertical direction, which enhances the connection stability between the pressing part 33 and the intermediate connecting member 60 and prevents the pressing part 33 from falling off or loosening during use. This also eliminates the need for additional fasteners such as screws or clips to connect the pressing part 33 and the intermediate connecting member 60, reducing production costs.

[0175] like Figure 3 and Figure 6 and Figure 12 As shown, to improve the tightness of the connection 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 sleeve portion 315 to press the sleeve portion 315 tightly against the annular protrusion 64. Through the pressing action of the fixing member 70, a tight connection between the sleeve portion 315 and the annular protrusion 64 is ensured, reducing the risk of loosening and leakage, and improving the stability and sealing of the overall structure. Furthermore, a stable connection can reduce shaking during pressing, providing a more uniform pressing feel and improving the user experience.

[0176] like Figure 3 , Figure 6 and Figure 12 As shown, specifically, the intermediate connector 60 also has a mounting platform 65, which is recessed toward the side away from the pressing part 33. An annular protrusion 64 is provided on the bottom wall of the mounting platform 65. The fixing member 70 includes a first fixing part 71 and a second fixing part 72 connected together. The first fixing part 71 is annular, provided on the mounting platform 65 and extending in the horizontal direction. The outer peripheral wall of the first fixing part 71 abuts against the inner side wall of the mounting platform 65. To limit the displacement of the first fixing part 71 in the vertical direction, the inner side wall of the mounting platform 65 is provided with a limiting protrusion 66. The first fixing part 71 is located on the limiting protrusion. Between 66 and pump body 31, the first fixing part 71 can press a portion of pump body 31 in the vertical direction so that pump body 31 abuts against intermediate connector 60; while the second fixing part 72 is connected to the inner wall of the first fixing part 71 and extends in the direction of pressing part 33. The second fixing part 72 is located on the side of the outer peripheral wall of pump body 31 away from the annular protrusion 64. The second fixing part 72 can press pump body 31 in the direction of the center of communication port 62a so that pump body 31 fits tightly against annular protrusion 64, ensuring a tight connection between pump body 31 and intermediate connector 60, reducing the risk of loosening and leakage.

[0177] Please continue reading. Figure 3 , Figure 6 and Figure 12 In some embodiments, the top of the toothpaste container 10 has an opening 10b communicating with the toothpaste storage chamber 10a. The opening 10b is located on one side of the piston 20 in the vertical direction, and the air pressure balance hole 10c is located on the other side of the piston 20 in the vertical direction. The bottom wall 62 of the intermediate connector 60 has an annular clearance groove 62b facing the toothpaste container 10. The annular clearance groove 62b is designed to accommodate the opening 10b of the toothpaste container 10, providing a precise installation position. The outer groove wall 62a2 of the annular clearance groove 62b has internal threads; this refers to the side of the annular clearance groove 62b facing the toothpaste container 10. The outer circumferential surface of the top of the toothpaste container 10 has external threads, allowing the top of the toothpaste container 10 to be inserted into the annular clearance groove 62b. The external threads of the toothpaste container 10 and the internal threads of the annular clearance groove 62b are screwed together, ensuring a stable connection between the toothpaste container 10 and the intermediate connector 60, achieving a tight connection between them, and reducing shaking and loosening. Furthermore, the precise thread fit reduces toothpaste leakage caused by loose connections, minimizing the risk of toothpaste leakage and ensuring the hygiene of the toothpaste during storage and use.

[0178] In some embodiments, from the bottom of the annular relief groove 62b towards the opening, it should be noted that the bottom wall 62 is positioned closer to the side where the pressing part 33 is located compared to the opening. The inner wall 62a1 of the annular relief groove 62b is gradually moved away from the outer wall 62a2. The inner wall refers to the radial direction from the center of the toothpaste container 10 towards the outer periphery, where the inner wall 62a1 is closer to the center than the outer wall 62a2, and the outer wall 62a2 is closer to the outer periphery than the inner wall 62a1, so that the annular... The relief groove 62b is open, so that the annular relief groove 62b gradually widens from the bottom to the opening, which can reduce the collision between the toothpaste container 10 and the annular relief groove 62b when inserted, making the installation smoother and reducing the installation difficulty. As the toothpaste container 10 is inserted deeper into the annular relief groove 62b, it gradually narrows from the opening to the bottom, that is, the inner sidewall forms a guide slope, which can gradually guide the external thread of the toothpaste container 10 to approach the internal thread of the annular relief groove 62b, so that the toothpaste container 10 reaches the correct assembly position, significantly reducing the installation time.

[0179] like Figure 6 , Figure 13 and Figure 14As shown, to prevent the ointment in the ointment storage chamber 10a from leaking during the up-and-down movement of the piston 20, in some embodiments, the piston 20 includes a main body 21, a first ring 22, and a second ring 23. The main body 21 is the main component of the piston 20 and is arranged in a disc shape. The first ring 22 is connected to the outer periphery of the main body 21 and extends along the sliding direction of the piston 20 toward the side where the pump body 31 is located. The second ring 23 is connected to the outer periphery of the main body 21 and extends along the sliding direction of the piston 20 toward the side away from the pump body 31. The first ring 22 and the second ring 23 can support the main body 21 and guide the movement direction of the main body 21, that is, guide the piston 20 to move in a straight line in the ointment storage chamber 10a, so that the piston 20 will not deviate or tilt during the movement.

[0180] Furthermore, the first and second rings 22 extend from the outer periphery of the main body 21 in both upward and downward directions, forming a double sealing structure. This design can more effectively prevent the ointment from leaking from the gap between the piston 20 and the cavity wall of the ointment storage chamber 10a, while preventing air from entering the ointment storage chamber 10a and affecting the ointment dispensing effect.

[0181] like Figure 6 , Figure 13 and Figure 14 As shown, the extension length of the first ring 22 is less than the extension length of the second ring 23. Since the piston 20 mainly moves toward the side where the pressing part 33 is located, the smaller extension length of the first ring 22 can reduce the friction between the first ring 22 and the cavity sidewall, so as not to restrict the upward displacement of the piston 20. The longer length of the second ring 23 ensures that the second ring 23 is at least partially attached to the cavity sidewall during the movement of the piston 20, thus ensuring sealing.

[0182] Furthermore, as the piston 20 gradually moves closer to the top of the toothpaste container 10, a portion of the first ring 22 can be embedded into the annular relief groove 62b. Since there is a gap between the inner groove of the annular relief groove 62b and the inner wall of the toothpaste container 10, toothpaste paste may be trapped. When a portion of the first ring 22 extends into the gap as the piston 20 moves, the paste in the gap is squeezed out, ensuring that the toothpaste in the toothpaste container 10 is fully squeezed into the pump body 31, reducing toothpaste residue.

[0183] Please continue reading. Figure 6 , Figure 13 and Figure 14In some embodiments, the main body 21 of the piston 20 includes a main plate 211 and a first stepped ring 212. The main plate 211 is located inside the first circumferential ring 22 and is spaced apart from the first circumferential ring 22. The first stepped ring 212 includes a first connecting portion 2121 and a first upper extension 2122 connected at an angle. One end of the first connecting portion 2121 is connected to the connection between the first circumferential ring 22 and the second circumferential ring 23, and the other end of the first connecting portion 2121 is connected to one end of the first upper extension 2122. The first upper extension 2122 extends upward at an angle and connects to the outer edge of the main plate 211. The first connecting portion 2121 and the first upper extension 2122, connected at an angle, form a step-like structure. 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 lateral and axial forces.

[0184] Furthermore, the included angle structure between the first connecting portion 2121 and the first upper extension portion 2122 can serve as a guide 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 portion 2121 and the first upper extension portion 2122 can ensure that the piston 20 can more smoothly push the toothpaste from the toothpaste reservoir 10a to the connecting port 62a during the sliding process.

[0185] Please continue reading. Figure 6 , Figure 13 and Figure 14 Furthermore, the main body 21 also includes a second stepped ring 213. The second stepped ring 213 includes a second connecting portion 2131 and a second upper extension portion 2132 connected at an angle. One end of the second connecting portion 2131 is connected to the top end of the first upper extension portion 2122, and the other end of the second connecting portion 2131 is connected to one end of the second upper extension portion 2132. The second upper extension portion 2132 extends upward at an angle, i.e., towards the connecting opening 62a, and connects to the outer edge of the main body 211. The second connecting portion 2131 and the second upper extension portion 2132 of the second stepped ring 213 are connected at an angle, forming an inclined structure. This inclined structure can reduce the contact area between the piston 20 and the inner wall of the container during sliding, thereby reducing friction. By reducing frictional resistance, the piston 20 can more smoothly push the toothpaste from the toothpaste storage cavity 10a to the toothpaste outlet 32a during sliding. 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 displacement of the piston 20 during the sliding process, ensuring a tight fit between the piston 20 and the inner wall of the toothpaste container 10.

[0186] like Figure 3 and Figure 6As shown, in some embodiments, the pump body assembly 30 further includes a toothpaste dispensing pipe 32. The pump body 31 has a pump nozzle communicating with the pump chamber 31a. The toothpaste dispensing pipe 32 is connected to the pump nozzle and has a toothpaste dispensing channel communicating 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 create an installation space. The toothpaste dispensing pipe 32 is partially installed in the installation space, that is, the installation space provides a accommodating space for the toothpaste dispensing pipe 32, so that part of the toothpaste dispensing pipe 32 is hidden inside the intermediate connector 60. The toothpaste dispensing pipe 32 is not completely set outside the toothpaste container 10, which affects the visual effect. This makes the overall appearance of the toothpaste supply device 100 simpler and more beautiful, and also provides a certain degree of protection for the toothpaste dispensing pipe 32. The paste outlet pipe 32 is connected to the pump body 31 and has a paste outlet 32a. The paste outlet pipe 32 extends to the outside of 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 user convenience.

[0187] Furthermore, the intermediate connector 60 has an extension 60a that communicates with the installation space. One end of the paste dispensing pipe 32 with the paste dispensing port 32a extends out of the intermediate connector 60 through the extension 60a, allowing the paste dispensing pipe 32 to extend out of the intermediate connector 60 without adding extra space. This allows the entire device to be designed more compactly, saving space.

[0188] In some embodiments, at least a section of the toothpaste dispensing pipe 32 gradually decreases in cross-sectional area from the pump body 31 toward the dispensing port 32a. This gradual decrease in cross-sectional area allows the toothpaste flow velocity within the dispensing pipe 32 to gradually increase. According to fluid mechanics principles, as fluid passes through a gradually narrowing pipe, its flow velocity increases accordingly, which helps the toothpaste to be extruded more smoothly from the dispensing port 32a, reducing the residence time of the toothpaste within the pipe and thus improving dispensing efficiency.

[0189] In some embodiments, the length of the toothpaste dispensing tube 32 is no more than 50 mm. A shorter dispensing tube 32 can reduce the amount of toothpaste residue in the tube. When the user presses the pump body 31, the toothpaste can reach the dispensing port 32a more quickly through the dispensing tube 32, reducing toothpaste accumulation in the tube. Furthermore, the shorter dispensing tube 32 can reduce the flow time of the toothpaste in the tube, thereby increasing the dispensing speed. This means that the user can get toothpaste faster when pressing the pump body 31, improving the user experience.

[0190] like Figure 6 , Figure 11 and Figure 15As shown, specifically, the pump body 31 includes an elastic section 311 and a toothpaste dispensing section 312. The dispensing section 312 is connected to the elastic section 311 and together with the elastic section 311 defines the pump cavity 31a. The dispensing section 312 is located between the elastic section 311 and the toothpaste container 10. Understandably, the elastic section 311 is the main body of the pump cavity 31a, while the dispensing section 312 can be understood as the pump nozzle of the pump body 31. The toothpaste dispensing pipe 32 is connected and communicates with the dispensing section 312. When the pump body 31 is squeezed, toothpaste flows from the dispensing section 312 into the dispensing pipe 32. The elastic section 311 is a soft rubber component. The elastic section 311 of the soft rubber component can quickly return to its original shape, ensuring that the pump body 31 can deform after each press to squeeze the pump cavity 31a, causing the toothpaste in the pump cavity 31a to flow out from the dispensing section 312. After the external force is removed, it can quickly return to its initial state, preparing for the next press. The toothpaste dispensing section 312 is a rigid component. The rigidity of the toothpaste dispensing section 312 ensures that the shape and position of the connection with the toothpaste dispensing pipe 32 remain unchanged during use, reducing toothpaste leakage caused by deformation.

[0191] Correspondingly, at least one section of the paste outlet pipe 32 connected to the pump body 31 is a rigid section. That is, the rigid section of the paste outlet pipe 32 is connected to the aforementioned paste outlet section 312. The rigid section has high rigidity, which can effectively prevent deformation at the connection due to external forces or changes in internal pressure. This design ensures that the connection between the paste outlet pipe 32 and the pump body 31 remains stable during use and will not loosen or leak due to deformation.

[0192] In some embodiments, the height of the toothpaste outlet 32a is no higher than the height of the end of the toothpaste dispensing pipe 32 connected to the pump body 31. This design aims to allow the toothpaste to flow smoothly from the pump body 31 to the outlet 32a by utilizing gravity. This design avoids the toothpaste needing to flow upwards against gravity, thereby effectively preventing blockages that may be caused by toothpaste accumulation or backflow in the dispensing pipe 32, and ensuring that the toothpaste can be dispensed smoothly.

[0193] like Figure 6 , Figure 9 and Figure 15 As shown, the bottom of the pressing part 33 further has a clearance notch 33a for avoiding the dispensing tube 32. The clearance notch 33a communicates with the outside, and the dispensing tube 32 passes through the clearance notch 33a. The presence of the clearance notch 33a ensures that the pressing part 33 will not interfere with or rub against the dispensing tube 32 when the lid is closed, thereby ensuring that the paste can be smoothly squeezed out of the dispensing tube 32 without causing difficulty or interruption in dispensing due to the squeezing of the pressing part 33. Moreover, during the assembly process, due to the presence of the clearance notch 33a, the dispensing tube 32 can be more easily inserted into the pressing part 33, simplifying the assembly steps.

[0194] In some embodiments, one end of the paste dispensing pipe 32 with the paste outlet 32a is snapped into the intermediate connector 60, or the middle section of the paste dispensing pipe 32 is snapped into the intermediate connector 60. Whether the paste outlet 32a or the middle section is snapped into the intermediate connector 60, this design enhances the connection stability between the paste dispensing pipe 32 and the intermediate connector 60. The snap-fit ​​structure effectively prevents the paste dispensing pipe 32 from falling off or shifting due to external force or pressure during use, ensuring that the paste dispensing pipe 32 is firmly fixed in the predetermined position.

[0195] The snap-fit ​​design is typically an easy-to-assemble and disassemble connection method. The paste dispensing pipe 32 can be easily secured to the intermediate connector 60 via a simple snap-fit ​​operation, improving assembly efficiency. Simultaneously, when maintenance or replacement of the paste dispensing pipe 32 is required, it can be easily removed from the intermediate connector 60.

[0196] In some embodiments, one end of the ointment outlet pipe 32 having an ointment outlet 32a may be connected to the top wall 61, bottom wall 62, or peripheral side wall 63 of the intermediate connector 60. Specifically, if one end of the ointment outlet pipe 32 having an ointment outlet 32a is connected to the top wall 61 of the intermediate connector 60 (e.g., ...), ... Figure 1 This design places the toothpaste outlet 32a at the top of the intermediate connector 60, on its upper surface without obstruction. The outlet 32a is prominently positioned, making it easy for users to identify and use by scooping out the toothpaste. After the toothpaste is squeezed out from the outlet 32a, users can use their toothbrush to scrape it off, reducing the need for bending over. If the end of the toothpaste tube 32 with the outlet 32a is connected to the bottom wall 62 of the intermediate connector 60, the toothpaste will fall naturally after being squeezed out, reducing toothpaste residue on the outer wall of the intermediate connector 60. Users can directly hold the toothbrush and place the brush head under the outlet 32a to wait for the toothpaste to dispense, making the toothpaste dispensing method more hygienic. If one end of the ointment outlet 32 ​​is connected to the peripheral wall 63 of the intermediate connector 60, the ointment outlet 32a is more prominent than the ointment outlet 32a being located at the bottom, and can prevent the user from directly touching the ointment outlet 32a when pressing the pressing part 33.

[0197] Please continue reading. Figure 6 , Figure 8 and Figure 15In some embodiments, the toothpaste outlet 32a is located at the junction of the bottom wall 62 and the peripheral side wall 63, meaning that the toothpaste outlet 32a is located slightly below the side of the intermediate connector 60. On the one hand, this effectively prevents the user from accidentally touching the toothpaste outlet 32a with their fingers when pressing the pressing part 33, thus keeping the toothpaste outlet 32a clean and preventing dirt on the fingers from contaminating the toothpaste. On the other hand, the toothpaste outlet 32a located on the lower side utilizes gravity, causing the squeezed toothpaste to fall naturally downwards, making it less likely to remain on the opening wall of the toothpaste outlet 32a. This not only makes it convenient for the user to use the toothpaste but also reduces toothpaste waste.

[0198] Furthermore, the toothpaste outlet 32a is spaced apart from the outer circumference of the toothpaste container 10, ensuring that the outlet 32a does not stick tightly to the outer wall of the toothpaste container 10. This provides some space for the toothbrush head to be placed, and does not interfere with the outer wall of the toothpaste container 10. It also prevents the toothpaste from directly contacting the outer wall of the container when it is squeezed out, thus keeping the appearance of the toothpaste container 10 clean, preventing toothpaste contamination, and making the use of toothpaste more hygienic.

[0199] In some embodiments, the radial distance between the toothpaste outlet 32a and the outer peripheral surface of the toothpaste container 10 is not less than 10 mm and not more than 30 mm. This design provides sufficient space, allowing the user's toothbrush head to be conveniently placed near the outlet 32a in different directions without interfering with the outer peripheral surface of the toothpaste container 10. This reduces contact between the toothbrush head and the outer peripheral surface of the toothpaste container 10, lowers the risk of contamination, and ensures the hygiene of the toothpaste during use.

[0200] In some embodiments, the toothpaste outlet 32a is tilted downwards. During use, the user can place the brush head under the toothpaste outlet 32a and wait for the toothpaste to be dispensed. The tilted downwards orientation of the toothpaste outlet 32a allows the toothpaste to flow more naturally to the toothbrush head when squeezed out.

[0201] Furthermore, the angle between the central axis of the toothpaste outlet 32a and the horizontal plane is no less than 15 degrees and no more than 75 degrees, ensuring smooth toothpaste flow. If the angle between the central axis of the toothpaste outlet 32a and the horizontal plane is less than 15 degrees, the outlet 32a is too close to the horizontal direction, and may spray in all directions during dispensing, leading to inconvenience and waste. When the angle is too large (greater than 75 degrees), the outlet 32a is too vertically downward, and the toothpaste may be squeezed out too quickly under the action of gravity and pressure, and the user may not have enough time to accurately apply the toothpaste to the toothbrush, resulting in waste and contamination. Also, if the outlet 32a is too vertical, the toothpaste dispensing pipe 32 between the pump body 31 and the outlet 32a may require a large bend angle. This will cause the toothpaste to encounter resistance during flow, easily accumulating at the bends, and may cause blockage with long-term use.

[0202] Please continue reading. Figure 6 and Figure 15 To prevent toothpaste backflow at the toothpaste outlet 32a, in some embodiments, the toothpaste outlet pipe 32 includes a pipe body 321 and a toothpaste one-way valve 322. The pipe body 321 is connected to and communicates with the pump body 31, while the toothpaste one-way valve 322 is connected to the end of the pipe body 321 away from the pump body 31 and has the aforementioned toothpaste outlet 32a. The toothpaste one-way valve 322 allows the toothpaste to flow from the pipe body 321 out of the toothpaste outlet 32a, thereby preventing toothpaste from flowing back into the pipe body 321 from the toothpaste outlet 32a. This reduces the possibility of external contaminants flowing into the pipe body 321 through the toothpaste outlet 32a, further enhancing the hygiene of the product.

[0203] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0204] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A toothpaste supply device, characterized in that, include: A toothpaste container having a cavity for storing toothpaste; as well as A pump assembly is disposed on the top of the toothpaste container and includes a pump body, a pressing part, and a toothpaste outlet. At least part of the pump body is a soft rubber part and is connected to the toothpaste storage cavity and the toothpaste outlet. The pressing part is separately disposed from the pump body or is part of the pump body. When the pressing part is in conjunction with the deformation of the pump body, toothpaste is dispensed from the toothpaste outlet. The pressing part has a pressing surface. The area of ​​the pressing surface is not less than 350 mm². 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 part.

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

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 onto the toothpaste container to the outer edge of the cross-section of the toothpaste container is no greater than 10 mm; And / or, the ratio of the area of ​​the vertical projection of the pressing surface onto 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 made of soft rubber.

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

6. The toothpaste supply device according to claim 5, characterized in that, The pressing part is at least partially 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 no more than 3mm.

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 assembly also includes: A rigid connecting part is used to connect 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 a raised rib: The ribs are provided on the inner wall surface of the elastic outer cover.

11. The toothpaste supply device according to claim 10, characterized in that, The protruding rib includes: A first rib protrudes from the inner wall surface of the elastic outer cover; a portion of the first rib extends along a second direction, and the remaining first ribs extend along a third direction, which is perpendicular to the second direction; and / or The second rib protrudes from the inner wall surface of the elastic outer cover and extends circumferentially along the pressing part. The second rib is connected to the bottom end of the first rib.

12. The toothpaste supply device according to claim 1, characterized in that, Also includes: An intermediate connector is provided, through which the pump assembly is connected to the toothpaste container.

13. The toothpaste supply device according to claim 12, characterized in that, The intermediate connector includes a protrusion that protrudes relative to the outer peripheral surface of the toothpaste container, the protrusion being annularly arranged and surrounding the outer periphery of the toothpaste container; and / or, The top surface of the intermediate connector is either flat or curved.

14. The toothpaste supply device according to claim 12, characterized in that, The intermediate connector also has a temporary storage cavity located between the pump body and the toothpaste container, and the temporary storage cavity connects the pump body and the toothpaste storage cavity. The pump body assembly further includes: An internal one-way valve is provided in the temporary storage chamber, and the opening direction of the internal one-way valve is from the paste storage chamber to the temporary storage chamber.

15. The toothpaste supply device according to claim 12, characterized in that, The intermediate connector includes a protrusion that protrudes relative to the outer peripheral surface of the toothpaste container, and the toothpaste outlet is located on the protrusion.

16. The toothpaste supply device according to claim 15, characterized in that, The intermediate connector includes: The top wall has an installation opening through which the pump body passes into the intermediate connector. The bottom wall is positioned opposite and spaced apart from the top wall; and A peripheral sidewall, connecting the top wall and the bottom wall; The ointment outlet is located on the top wall, the bottom wall, or the peripheral wall.

17. The toothpaste supply device according to claim 16, characterized in that, The toothpaste outlet is located at the junction of the bottom wall and the peripheral side wall, and the toothpaste outlet is spaced apart 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 between the toothpaste 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 ointment outlet is inclined downwards, and the angle between the central axis of the ointment outlet and the horizontal plane is not less than 15 degrees and not greater than 75 degrees.

20. The toothpaste supply device according to claim 1, characterized in that, The pump assembly further includes a paste outlet pipe, the paste outlet pipe comprising: The pipeline body is connected to and communicates with the pump body; and A paste outlet check valve is connected to the end of the pipeline body away from the pump body and has the paste outlet.

21. The toothpaste supply device according to claim 20, characterized in that, The bottom of the pressing part has a clearance notch for avoiding the ointment dispensing pipe.

22. The toothpaste supply device according to any one of claims 1-4, 6, 9, 11-21, characterized in that, The toothpaste container has an opening at its top that communicates with the toothpaste reservoir, and an air pressure balancing hole at its bottom; the pump assembly further includes: An internal check valve is disposed within the pump body, and the opening direction of the internal check valve is from the paste storage chamber to the pump body; and A piston is slidably connected to the toothpaste container and located within the toothpaste reservoir. The opening is located on one side of the piston, and the pressure balance hole is located on the other side of the piston.

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