Integrated toothbrush capable of discharging toothpaste

Abstract

The utility model discloses an integrated toothbrush capable of discharging toothpaste and relates to the technical field of tooth nursing, the integrated toothbrush comprises a shell, an opening is formed in the side wall of the shell, a cover piece is hinged to the outer side of the opening of the outer wall of the shell, a knob is clamped to the lower side of the shell, and the outer wall of the lower side of the shell is clamped to the inner wall of the upper side of the knob; the device comprises a shell, a rotary knob is arranged in the shell, the shell can rotate relative to the rotary knob, a connecting channel is formed in the middle of the upper side of the shell, a connecting groove is formed in the upper surface of the shell, and a brush head is arranged on the upper side of the shell. And gas is pushed into the toothpaste channel through the one-way valve, so that toothpaste in the toothpaste channel is discharged, the toothpaste in the toothpaste channel is prevented from being dried and blocked, meanwhile, a small amount of toothpaste is continuously supplemented in the tooth brushing process, the tooth cleaning effect is enhanced, and the toothbrush has the advantages of being high in practicability and capable of preventing the toothpaste channel from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of tooth care, in particular to an integrated toothbrush capable of discharging toothpaste. Background Art

[0002] In daily oral care, toothbrushes and toothpaste are essential cleaning tools. However, the traditional design of separating toothpaste from toothbrush has many inconveniences, especially the need for additional steps during use, such as squeezing the toothpaste and replacing the toothpaste cap. This not only wastes time but also makes it difficult to control the amount of toothpaste used. In addition, after long-term use of toothpaste, problems such as uneven squeezing, excessive squeezing, and excessive residue often occur, resulting in poor cleaning effect and waste of resources.

[0003] Although existing multifunctional toothbrushes integrate the functions of toothpaste and toothbrush to a certain extent, they still have some shortcomings. Specifically, after squeezing the toothpaste, some toothpaste will generally remain in the transmission channel, which often causes the toothpaste to dry out and clog the toothpaste channel, affecting the user experience. In addition, during the squeezing process, it is difficult for users to accurately control the amount of toothpaste used.

[0004] Therefore, in response to the above problems, it is necessary to design a toothbrush device that can reasonably store toothpaste, is easy to operate, and has the function of preventing toothpaste from drying out. It can not only meet the needs of daily brushing, but also effectively solve the problems of inconvenience in carrying out and toothpaste clogging, and provide a more optimized oral cleaning solution. Summary of the Invention

[0005] The object of the present invention is to provide an integrated toothbrush capable of discharging toothpaste, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an integrated toothbrush capable of discharging toothpaste, comprising a shell, a side wall of the shell being provided with an opening, an outer wall of the shell being hingedly connected to a cover sheet outside the opening, a lower side of the shell being clamped with a knob, the lower outer wall of the shell being clamped with the upper inner wall of the knob, and the shell being rotatable relative to the knob, a connecting channel being provided at the middle portion of the upper side of the shell, a connecting groove being provided on the upper surface of the shell, a brush head being provided on the upper side of the shell, a threaded ring being provided on the lower side of the brush head, the outer wall of the threaded ring being threadedly connected to the inner wall of the connecting groove;

[0007] The lower end of the brush head extends to the interior of the connecting channel, a toothpaste channel is opened inside the brush head, bristles are fixedly connected to the outer wall of the upper end of the brush head, the toothpaste channel connects the lower end of the brush head with the bristles on the upper side of the brush head, a toothpaste bin is provided inside the shell, an insert is fixedly connected to the upper side of the toothpaste bin, the upper side of the insert extends to the interior of the connecting channel, the outer wall of the insert contacts the inner wall of the connecting channel, the inner wall of the insert contacts the outer wall of the lower end of the brush head, and the interior of the toothpaste bin is connected to the interior of the toothpaste channel;

[0008] The shell is further provided with a discharge mechanism and an anti-drying mechanism. The discharge mechanism is located at the lower side of the shell, and the anti-drying mechanism is located at the upper side of the shell.

[0009] According to the above technical solution, a temporary toothpaste capsule is also included;

[0010] The interior of the temporary toothpaste sac is a hollow structure, and a tubular opening is provided on the upper side of the temporary toothpaste sac. The temporary toothpaste sac can be placed inside the shell. After the temporary toothpaste sac is placed inside the shell, the inner wall of the tubular opening of the temporary toothpaste sac can contact the inner wall of the connecting channel, and the inner wall of the tubular opening of the temporary toothpaste sac can contact the outer wall of the lower end of the brush head.

[0011] According to the above technical solution, the discharge mechanism includes an outer tube, the lower end of the outer tube is fixedly connected to the middle upper surface of the knob, the upper end of the outer tube extends to the interior of the shell, and the middle of the outer tube is inserted with an inner tube, the side wall of the inner tube is fixedly connected with a threaded block, the side wall of the outer tube is provided with a sliding groove, one end of the threaded block extends to the outside of the outer tube through the sliding groove, the threaded block extends to the outside of the outer tube and is threadedly connected to the inner wall of the shell, the upper surface of the inner tube is fixedly connected with a top block, and the upper surface of the top block contacts the lower surface of the toothpaste bin.

[0012] According to the above technical solution, the top block can move up and down relative to the outer tube, and the outer diameter of the top block is larger than the inner diameter of the toothpaste bin. The top block is made of elastic rubber material and can be moved to the inside of the toothpaste bin. The outer wall of the outer tube is connected to a friction ring through a torsion spring. The outer wall of the friction ring is in contact with the inner wall of the shell, and the friction force between the outer wall of the friction ring and the inner wall of the shell is greater than the force required for the deformation of the torsion spring at the connection between the friction ring and the outer tube. A limiting mechanism is provided inside the outer tube.

[0013] According to the above technical solution, the limiting mechanism includes a friction rod, the lower end of the friction rod is fixedly connected to the inner wall of the knob, the outer side of the friction rod is provided with a friction sleeve, the lower end of the friction sleeve is fixedly connected to a first spring, the lower end of the first spring is fixedly connected to the inner wall of the knob, the inner wall of the friction sleeve contacts the outer wall of the friction rod, the upper end of the friction rod is fixedly connected to a rubber sheet, and the limiting mechanism also includes a plurality of spacers, the outer walls of the spacers are fixedly connected to the inner wall of the inner tube.

[0014] According to the above technical solution, the radius of the rubber sheet is greater than the distance between the outer wall of the partition bar and the outer wall of the friction rod. The rubber sheet is made of rubber material, and the friction sleeve and the friction rod can heat up due to friction when they move relative to each other.

[0015] According to the above technical solution, the anti-drying mechanism includes an air cavity, which is a disc-shaped cavity opened on the upper side of the interior of the shell, and the lower side of the air cavity is connected to the outer side of the shell, and the upper side of the air cavity is connected to the upper part of the shell through an inverted trapezoidal opening. The side wall of the air cavity is connected to the interior of the connecting channel through a circular hole, and a one-way valve is fixedly connected to the inner wall of the circular hole. The output end of the one-way valve is one end close to the interior of the connecting channel, and a counterweight ring is placed inside the air cavity. A second spring is fixedly connected to the inner wall of the inverted trapezoidal opening on the upper side of the air cavity, and a sealing plate is fixedly connected to the lower end of the second spring. The outer wall of the sealing plate is in contact with the inner wall of the inverted trapezoidal opening.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the present invention is provided with a discharge mechanism, which can drive the outer cylinder and the inner cylinder by rotating the knob, so that the top block pushes the toothpaste inside the toothpaste bin upward, thereby squeezing the toothpaste onto the bristles, and the operation is convenient; after the knob is loosened, the torsion spring deflects a small angle in the reverse direction, and the top block moves slightly downward, so that the toothpaste in the toothpaste channel is drawn back downward, thereby preventing toothpaste residue and reducing unnecessary discharge of subsequent toothpaste;

[0017] By setting a limited amount mechanism, the rubber sheet creates resistance when it contacts the spacer during the toothpaste squeezing process. The user can judge the amount of toothpaste squeezed out by feel, effectively controlling the amount squeezed out to avoid over- or under-dosing. At the same time, the friction between the friction rod and the friction sleeve generates heat, which softens the toothpaste, ensuring a more even consistency during storage and improving stability during subsequent use.

[0018] By providing a temporary toothpaste capsule, when you need to travel, you can pre-fill a small amount of toothpaste into the temporary toothpaste capsule, avoiding the trouble of additional filling of toothpaste, making it easy to carry and use, especially suitable for emergency needs during short trips, while ensuring that the use effect of the toothpaste is not affected;

[0019] By providing an anti-drying mechanism, when the shell is shaken during brushing, the counterweight ring moves up and down in the air cavity, and pushes air into the toothpaste channel through the one-way valve, so that the toothpaste inside the toothpaste channel is discharged, preventing the toothpaste inside the toothpaste channel from drying and clogging. At the same time, a small amount of toothpaste is continuously replenished during brushing to enhance the cleaning effect on the teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the toothpaste bin structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of a temporary toothpaste capsule of the present invention;

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the limiting mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the discharge mechanism of the present invention;

[0028] Figure 8 This is a schematic diagram of the cross-sectional structure of the toothpaste bin of the present invention;

[0029] Figure 9 This invention Figure 8 Schematic diagram of the enlarged structure of A;

[0030] In the figure: 1. Shell; 2. Cover; 3. Knob; 4. Connecting channel; 5. Connecting groove; 6. Brush head; 7. Threaded ring; 8. Bristles; 9. Toothpaste bin; 10. Cannula; 11. Temporary toothpaste capsule; 12. Toothpaste channel; 13. Discharge mechanism; 14. Anti-drying mechanism; 301. Outer cylinder; 302. Inner cylinder; 303. Threaded block; 304. Top block; 305. Friction ring; 306. Limiting mechanism; 601. Friction rod; 602. First spring; 603. Friction sleeve; 604. Rubber sheet; 605. Spacer; 401. Air cavity; 402. Counterweight ring; 403. Second spring; 404. Sealing plate; 405. One-way valve. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-9 The present invention provides a technical solution: an integrated toothbrush capable of discharging toothpaste, comprising a shell 1, an opening being provided on the side wall of the shell 1, a cover piece 2 being hingedly connected to the outer side of the opening on the outer wall of the shell 1, a knob 3 being clamped on the lower side of the shell 1, the lower outer wall of the shell 1 being clamped with the upper inner wall of the knob 3, and the shell 1 being rotatable relative to the knob 3, a connecting channel 4 being provided on the middle part of the upper side of the shell 1, a connecting groove 5 being provided on the upper surface of the shell 1, a brush head 6 being provided on the upper side of the shell 1, a threaded ring 7 being provided on the lower side of the brush head 6, the outer wall of the threaded ring 7 being threadedly connected to the inner wall of the connecting groove 5, the lower end of the brush head 6 extending to the inside of the connecting channel 4, and a toothpaste nozzle 2 being provided inside the brush head 6 The channel 12, the outer wall of the upper end of the brush head 6 is fixedly connected with the bristles 8, the toothpaste channel 12 connects the lower end of the brush head 6 with the bristles 8 on the upper side of the brush head 6, and the interior of the shell 1 is provided with a toothpaste bin 9. The upper side of the toothpaste bin 9 is fixedly connected with an insert 10. The upper side of the insert 10 extends to the interior of the connecting channel 4. The outer wall of the insert 10 contacts the inner wall of the connecting channel 4. The inner wall of the insert 10 contacts the outer wall of the lower end of the brush head 6. The interior of the toothpaste bin 9 is connected with the interior of the toothpaste channel 12. The interior of the shell 1 is further provided with a discharge mechanism 13 and an anti-drying mechanism 14. The discharge mechanism 13 is located on the lower side of the interior of the shell 1, and the anti-drying mechanism 14 is located on the upper side of the interior of the shell 1;

[0033] During daily use, the cover 2 can be opened and the brush head 6 can be rotated and removed, and then the toothpaste bin 9 can be taken out of the housing 1. After toothpaste is filled in the toothpaste bin 9, the toothpaste bin 9 can be put back into the housing 1, and then the brush head 6 can be rotated and fixed on the housing 1.

[0034] The temporary toothpaste capsule 11 is hollow and has a tubular opening on its upper side. The temporary toothpaste capsule 11 can be placed inside the housing 1. After the temporary toothpaste capsule 11 is placed inside the housing 1, the inner wall of the tubular opening of the temporary toothpaste capsule 11 can contact the inner wall of the connecting channel 4, and the inner wall of the tubular opening of the temporary toothpaste capsule 11 can contact the outer wall of the lower end of the brush head 6.

[0035] When traveling, a temporary toothpaste capsule 11 can be installed inside the housing 1. A small amount of toothpaste is built into the temporary toothpaste capsule 11, and no additional filling is required.

[0036] The discharge mechanism 13 includes an outer cylinder 301, the lower end of the outer cylinder 301 is fixedly connected to the middle upper surface of the knob 3, the upper end of the outer cylinder 301 extends to the interior of the shell 1, and the middle of the outer cylinder 301 is plugged with an inner cylinder 302, the side wall of the inner cylinder 302 is fixedly connected to a threaded block 303, the side wall of the outer cylinder 301 is provided with a sliding groove, one end of the threaded block 303 extends to the outside of the outer cylinder 301 through the sliding groove, the threaded block 303 extends to the outside of the outer cylinder 301 and is threadedly connected to the inner wall of the shell 1 at one end, the upper surface of the inner cylinder 302 is fixedly connected to a top block 304, the upper surface of the top block 304 The top block 304 contacts the lower surface of the toothpaste bin 9 and can move up and down relative to the outer tube 301. The outer diameter of the top block 304 is larger than the inner diameter of the toothpaste bin 9. The top block 304 is made of elastic rubber and can move into the interior of the toothpaste bin 9. The outer wall of the outer tube 301 is connected to a friction ring 305 via a torsion spring. The outer wall of the friction ring 305 contacts the inner wall of the housing 1, and the friction force between the outer wall of the friction ring 305 and the inner wall of the housing 1 is greater than the force required for deformation of the torsion spring at the connection between the friction ring 305 and the outer tube 301. A limiting mechanism 306 is provided inside the outer tube 301.

[0037] Before brushing teeth, the knob 3 is rotated to drive the outer cylinder 301 to rotate, and the outer cylinder 301 drives the inner cylinder 302 to rotate. Since the inner wall of the outer cylinder 301 and the outer wall of the inner cylinder 302 are both hexagonal structures, the two structures cannot rotate relative to each other. When the outer cylinder 301 drives the inner cylinder 302 and the threaded block 303 to rotate, since the outer wall of the threaded block 303 is threadedly connected to the inner wall of the shell 1, the threaded block 303 drives the inner cylinder 302 to slide upward, and then the top block 304 pushes the toothpaste inside the toothpaste bin 9 or the temporary toothpaste bag 11, so that the toothpaste is squeezed to the bristles 8 through the toothpaste channel 12, thereby making brushing more convenient;

[0038] When the knob 3 is rotated to drive the outer cylinder 301 to rotate, the outer cylinder 301 will first tighten the torsion spring at the connection with the friction ring 305, and then drive the friction ring 305 to rotate together. After the toothpaste is squeezed out, the knob 3 is released. Since the friction force between the outer wall of the friction ring 305 and the inner wall of the shell 1 is greater than the force required for the deformation of the torsion spring at the connection between the friction ring 305 and the outer cylinder 301, the torsion spring will drive the outer cylinder 301 to deflect in the opposite direction by a small angle, so that the threaded block 303 will drive the inner cylinder 302 and the top block 304 to move downward slightly, causing the top block 304 to slightly draw back the toothpaste inside the toothpaste bin 9, thereby causing the toothpaste inside the toothpaste channel 12 and the toothpaste at the connecting channel 4 to move into the toothpaste bin 9, which can reduce the amount of toothpaste discharged from the toothpaste channel 12 later and cause the toothpaste on the bristles 8 and the toothpaste inside the toothpaste channel 12 to break.

[0039] The limiting mechanism 306 includes a friction rod 601, the lower end of the friction rod 601 is fixedly connected to the inner wall of the knob 3, a friction sleeve 603 is provided on the outer side of the friction rod 601, the lower end of the friction sleeve 603 is fixedly connected to the first spring 602, the lower end of the first spring 602 is fixedly connected to the inner wall of the knob 3, the inner wall of the friction sleeve 603 contacts the outer wall of the friction rod 601, and the upper end of the friction rod 601 is fixedly connected to a rubber sheet 604. The limiting mechanism 306 also includes a plurality of spacers 605, the outer wall of the spacer 605 is fixedly connected to the inner wall of the inner cylinder 302, the radius of the rubber sheet 604 is greater than the distance between the outer wall of the spacer 605 and the outer wall of the friction rod 601, the rubber sheet 604 is made of rubber, and the friction sleeve 603 and the friction rod 601 can heat up by friction when they move relative to each other;

[0040] When the knob 3 is rotated to squeeze the toothpaste, the inner cylinder 302 moves upward relative to the friction rod 601. During this process, the rubber sheet 604 continuously moves downward relative to the friction rod 601, thereby causing resistance when the rubber sheet 604 passes through the spacers 605. Since the spacers 605 are evenly distributed on the inner wall of the toothbrush 201, it is convenient for the user to judge the amount of toothpaste squeezed out by feel.

[0041] When the user brushes their teeth, the housing 1 is shaken continuously. During the shaking process, the friction sleeve 603 is continuously moved relative to the friction rod 601 under the elastic support of the first spring 602, thereby heating the contact area between the friction rod 601 and the friction sleeve 603. After a few minutes of friction, the device is left stationary, which causes the lower side of the top block 304 to heat up, thereby softening the toothpaste and making the toothpaste more uniform inside during storage, thereby facilitating a more stable amount of toothpaste to be squeezed out during subsequent use.

[0042] The anti-drying mechanism 14 includes an air cavity 401, which is a disc-shaped cavity opened on the upper side of the interior of the shell 1. The lower side of the air cavity 401 is connected to the outer side of the shell 1, and the upper side of the air cavity 401 is connected to the upper part of the shell 1 through an inverted trapezoidal opening. The side wall of the air cavity 401 is connected to the interior of the connecting channel 4 through a circular hole. A one-way valve 405 is fixedly connected to the inner wall of the circular hole. The output end of the one-way valve 405 is the end close to the interior of the connecting channel 4. A counterweight ring 402 is placed inside the air cavity 401. A second spring 403 is fixedly connected to the inner wall of the inverted trapezoidal opening on the upper side of the air cavity 401. A sealing plate 404 is fixedly connected to the lower end of the second spring 403. The outer wall of the sealing plate 404 contacts the inner wall of the inverted trapezoidal opening.

[0043] During the brushing process, due to the continuous shaking of the shell 1, the counterweight ring 402 will continue to move inside the air cavity 401. When the counterweight ring 402 moves down, its upper side inhales air through the inverted trapezoidal circular hole. When the counterweight ring 402 moves up, the sealing plate 404 blocks the inverted trapezoidal circular hole, so that the gas on the upper side of the counterweight ring 402 is continuously discharged into the interior of the connecting channel 4 through the one-way valve 405. Since the toothpaste inside the toothpaste bin 9 cannot move downward, the toothpaste inside the toothpaste channel 12 is pushed upward, so that a small amount of toothpaste inside the toothpaste channel 12 is discharged from the bristles 8, so that the toothpaste inside the toothpaste channel 12 will not be blocked due to dryness, and a small amount of toothpaste is continuously replenished during the brushing process, so that it has a better cleaning effect on the teeth.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An integrated toothbrush capable of discharging toothpaste, comprising a housing (1), characterized in that: The side wall of the shell (1) is provided with an opening, the outer wall of the shell (1) is hinged with a cover sheet (2) on the outside of the opening, the lower side of the shell (1) is clamped with a knob (3), the lower outer wall of the shell (1) is clamped with the upper inner wall of the knob (3), and the shell (1) can rotate relative to the knob (3), a connecting path (4) is provided in the middle of the upper side of the shell (1), a connecting groove (5) is provided on the upper surface of the shell (1), a brush head (6) is provided on the upper side of the shell (1), and a threaded ring (7) is provided on the lower side of the brush head (6), and the outer wall of the threaded ring (7) is threadedly connected to the inner wall of the connecting groove (5); The lower end of the brush head (6) extends to the interior of the connecting channel (4), a toothpaste channel (12) is provided inside the brush head (6), the outer wall of the upper end of the brush head (6) is fixedly connected with bristles (8), and the toothpaste channel (12) connects the lower end of the brush head (6) with the bristles (8) on the upper side of the brush head (6), a toothpaste bin (9) is provided inside the shell (1), the upper side of the toothpaste bin (9) is fixedly connected with an insert (10), the upper side of the insert (10) extends to the interior of the connecting channel (4), the outer wall of the insert (10) contacts the inner wall of the connecting channel (4), the inner wall of the insert (10) contacts the outer wall of the lower end of the brush head (6), and the interior of the toothpaste bin (9) is connected with the interior of the toothpaste channel (12); The housing (1) is further provided with a discharge mechanism (13) and an anti-drying mechanism (14); the discharge mechanism (13) is located on the lower side of the interior of the housing (1), and the anti-drying mechanism (14) is located on the upper side of the interior of the housing (1).

2. The integrated toothbrush capable of discharging toothpaste according to claim 1, characterized in that: Also included is a temporary toothpaste sachet (11); The interior of the temporary toothpaste sac (11) is a hollow structure, and a tubular opening is provided on the upper side of the temporary toothpaste sac (11). The temporary toothpaste sac (11) can be placed inside the shell (1). After the temporary toothpaste sac (11) is placed inside the shell (1), the inner wall of the tubular opening of the temporary toothpaste sac (11) can contact the inner wall of the connecting channel (4), and the inner wall of the tubular opening of the temporary toothpaste sac (11) can contact the outer wall of the lower end of the brush head (6).

3. The integrated toothbrush capable of discharging toothpaste according to claim 2, characterized in that: The discharge mechanism (13) comprises an outer cylinder (301), the lower end of the outer cylinder (301) is fixedly connected to the upper surface of the middle part of the knob (3), the upper end of the outer cylinder (301) extends to the interior of the shell (1), and the middle part of the outer cylinder (301) is plugged with an inner cylinder (302), the side wall of the inner cylinder (302) is fixedly connected with a threaded block (303), the side wall of the outer cylinder (301) is provided with a sliding groove, one end of the threaded block (303) extends to the outside of the outer cylinder (301) through the sliding groove, the end of the threaded block (303) extending to the outside of the outer cylinder (301) is threadedly connected to the inner wall of the shell (1), the upper surface of the inner cylinder (302) is fixedly connected with a top block (304), and the upper surface of the top block (304) contacts the lower surface of the toothpaste bin (9).

4. The integrated toothbrush capable of discharging toothpaste according to claim 3, characterized in that: The top block (304) can move in an up-down direction relative to the outer cylinder (301), and the outer diameter of the top block (304) is larger than the inner diameter of the toothpaste bin (9). The top block (304) is made of elastic rubber material and can move to the inside of the toothpaste bin (9). The outer wall of the outer cylinder (301) is connected to a friction ring (305) via a torsion spring. The outer wall of the friction ring (305) contacts the inner wall of the shell (1), and the friction force between the outer wall of the friction ring (305) and the inner wall of the shell (1) is greater than the force required for deformation of the torsion spring at the connection between the friction ring (305) and the outer cylinder (301). A limiting mechanism (306) is provided inside the outer cylinder (301).

5. The integrated toothbrush capable of discharging toothpaste according to claim 4, characterized in that: The limiting mechanism (306) includes a friction rod (601), the lower end of the friction rod (601) is fixedly connected to the inner wall of the knob (3), the outer side of the friction rod (601) is provided with a friction sleeve (603), the lower end of the friction sleeve (603) is fixedly connected to a first spring (602), the lower end of the first spring (602) is fixedly connected to the inner wall of the knob (3), the inner wall of the friction sleeve (603) contacts the outer wall of the friction rod (601), the upper end of the friction rod (601) is fixedly connected to a rubber sheet (604), and the limiting mechanism (306) also includes a plurality of spacers (605), the outer walls of the spacers (605) are fixedly connected to the inner wall of the inner cylinder (302).

6. The integrated toothbrush capable of discharging toothpaste according to claim 5, characterized in that: The radius of the rubber sheet (604) is greater than the distance between the outer wall of the spacer (605) and the outer wall of the friction rod (601). The rubber sheet (604) is made of rubber. When the friction sleeve (603) and the friction rod (601) move relative to each other, they can heat up due to friction.

7. The integrated toothbrush capable of discharging toothpaste according to claim 6, characterized in that: The anti-drying mechanism (14) includes an air cavity (401), which is a disc-shaped cavity opened on the upper side of the shell (1). The lower side of the air cavity (401) is connected to the outer side of the shell (1), and the upper side of the air cavity (401) is connected to the upper part of the shell (1) through an inverted trapezoidal opening. The side wall of the air cavity (401) is connected to the interior of the connecting channel (4) through a circular hole. A one-way valve (405) is fixedly connected to the inner wall of the circular hole. The output end of the one-way valve (405) is the end close to the interior of the connecting channel (4). A counterweight ring (402) is placed inside the air cavity (401). A second spring (403) is fixedly connected to the inner wall of the inverted trapezoidal opening on the upper side of the air cavity (401). A sealing plate (404) is fixedly connected to the lower end of the second spring (403). The outer wall of the sealing plate (404) contacts the inner wall of the inverted trapezoidal opening.

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