CN214179507U

CN214179507U - Toothbrush capable of squeezing toothpaste in negative pressure mode

Info

Publication number: CN214179507U
Application number: CN202120077130.0U
Authority: CN
Inventors: 李智华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-09-14
Anticipated expiration: 2031-01-12

Abstract

A toothbrush capable of squeezing toothpaste in a negative pressure mode relates to the technical field of toothbrushes. It includes: the handle is provided with an accommodating cavity; the brush handle is detachably assembled with the handle, and the brush handle is provided with a hollow cavity and an extrusion opening; the toothpaste connector is fixedly arranged on one side, close to the handle, of the brush handle, is communicated with the hollow cavity and is detachably assembled with toothpaste, and the toothpaste connector is also used for discharging toothpaste into the hollow cavity and preventing the discharged toothpaste from flowing back; the flexible extrusion part is fixedly assembled with the extrusion opening; the toothpaste nozzle and one side of the brush handle far away from the toothpaste connector are detachably assembled; and the toothbrush head, the toothbrush head and the toothbrush handle are detachably assembled so as to be convenient for replacing the toothbrush head, and the toothbrush head is provided with an accommodating notch for installing a toothpaste nozzle. The toothbrush adopting the technical scheme has the advantages of convenience and rapidness in toothbrush head replacement, good air tightness, good user experience, strong stability, low toothpaste replacement cost and convenience in toothpaste replacement.

Description

Toothbrush capable of squeezing toothpaste in negative pressure mode

Technical Field

The utility model relates to a toothbrush technical field, concretely relates to adopt toothbrush of crowded toothpaste of negative pressure mode.

Background

The toothbrush is a cleaning article, is a handle type brush and is used for adding toothpaste on the brush and then repeatedly brushing all parts of teeth. Usually, the toothbrush is separated from the toothpaste, and during tooth brushing, the toothpaste is recorded on the brush head of the toothbrush, and then tooth brushing operation is carried out.

With the development of society, the existing toothbrush can realize the function of squeezing toothpaste, thereby being convenient for people to squeeze toothpaste when in use. As is well known, the brush head of the toothbrush is damaged after long-term use, so that the cleaning force is poor, therefore, the replacement time of scientifically using the toothbrush head is changed for once in three months, while the brush head and the brush handle of the existing toothbrush with the function of squeezing toothpaste are integrated, so that the toothbrush head is difficult to replace independently; simultaneously, the toothbrush that can realize automatic crowded toothpaste of current, this toothbrush only can adapt its toothpaste of taking certainly, and then leads to the toothpaste kind to be difficult to the apolegamy by oneself, based on above-mentioned problem, one kind can enough make things convenient for the toothbrush head to change, can make things convenient for the toothpaste kind to change by oneself again, can also carry out the toothbrush of crowded toothpaste of negative pressure mode, the urgent need is excavated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, a toothbrush of crowded toothpaste of adoption negative pressure mode is provided, detachable assembly between its toothpaste connector through setting up and the toothpaste, promote the convertibility of toothpaste, and simultaneously, the toothpaste connector of setting passes through the inseparable assembly between joint structure realization and the brush holder, the gas tightness of toothpaste connector assembly has been promoted, and the eccentric setting of check valve, make the eccentric position department at the handle installed to the brush holder, and then promote user's use and experience, in addition, detachable assembly between toothbrush head and the brush holder, the change of the toothbrush head of being convenient for, it is convenient to have the toothbrush head change, and is swift, the gas tightness is good, user experience is good, the steadiness is strong, the toothpaste replacement cost is low, convenient advantage is changed to toothpaste.

In order to achieve the above object, the utility model adopts the following technical scheme: a toothbrush for squeezing toothpaste in a negative pressure manner comprises: the handle is provided with an accommodating cavity; the brush handle is detachably assembled with the handle, and the brush handle is provided with a hollow cavity and an extrusion opening; the toothpaste connector is fixedly arranged on one side, close to the handle, of the brush handle and is communicated with the hollow cavity, the toothpaste connector is detachably assembled with toothpaste and is also used for discharging toothpaste bodies into the hollow cavity and preventing the discharged toothpaste bodies from flowing back; the flexible extrusion part is fixedly assembled with the extrusion opening and is used for being extruded by a user, and the volume of the hollow cavity is changed after extrusion so as to form a negative pressure environment in the hollow cavity to suck toothpaste; the toothpaste nozzle and one side of the brush handle, which is far away from the toothpaste connector, are detachably assembled, a hollow channel is arranged in the toothpaste nozzle, and the hollow channel is communicated with the hollow cavity of the brush handle; and the toothbrush head, the toothbrush head with the detachable assembly of brush holder so that the toothbrush head is changed, be provided with the confession on the toothbrush head the holding breach of installation is chewed to toothpaste.

Be close to on the brush holder handle one side is provided with the installation cavity, be provided with the joint hole on the lateral wall of installation cavity, the toothpaste connector includes: the connector body is provided with an assembling hole at one side far away from the brush handle, and the assembling hole is used for assembling toothpaste; the clamping column is arranged on the outer side wall of the connector body and is used for being assembled with the clamping hole; the one-way valve is arranged on one side, far away from the assembling hole, of the connector body and communicated with the assembling hole, and when the hollow cavity is in a negative pressure environment, the one-way valve is used for discharging toothpaste bodies into the hollow cavity and preventing the discharged toothpaste bodies from flowing back.

The one-way valve is arranged at the eccentric position of the connector body, protrudes out of the connector body, and is communicated with the hollow cavity of the brush handle at the outlet.

The connector body is provided with a first concave part, and the side wall of the mounting cavity is provided with a first convex part matched with the first concave part; the one-way valve and the connector body are integrally formed; the side wall of the assembling hole is provided with an internal thread, the extrusion end of the toothpaste is provided with an external thread, and the toothpaste is detachably assembled with the connector body through the matching between the external thread and the internal thread; the clamping column and the connector body are integrally formed.

The brush holder includes: the mounting part is close to one side of the handle and detachably assembled with the handle, the mounting cavity is arranged in the mounting part, and the mounting part is used for assembling the toothpaste connector; the connecting part and the mounting part are integrally formed, the connecting part extends towards one side of the toothbrush head, and the extrusion opening is positioned on the connecting part; and the assembly end is positioned on the connecting part and is far away from one side of the mounting part, and the assembly end is used for being spliced and assembled with the toothpaste nozzle and the toothbrush head.

A first inserting part and a buckling part are arranged on one side, close to the brush handle, of the handle; the installation department is last to be provided with second grafting portion and joint platform, wherein second grafting portion is located installation department one side, and is used for supplying the second grafting portion that first grafting portion pegged graft, the joint platform is located the installation department opposite side, and be used for with the buckle portion joint.

A second sunken part is arranged on the outer side wall of the mounting part, the second sunken part and the first bulge part are correspondingly arranged, the second inserting part is an inserting groove communicated with the second sunken part, and the first inserting part protrudes out of the inner side wall of the handle and extends towards one side of the handle to be assembled with the inserting groove; the clamping part is protruded out of the arc-shaped protrusion on the outer side wall of the handle, the clamping table is protruded out of the outer side wall of the installation part, and a groove matched with the arc-shaped protrusion is formed in the clamping part.

The toothpaste nozzle is communicated with the hollow cavity through the through hole, and the toothpaste nozzle is hermetically inserted in the mounting hole.

It is protruding to be provided with the joint on the lateral wall of assembly end, overhead being close to of toothbrush brush holder one side is provided with the installation head, overhead the being provided with the cover groove of installation, be provided with the opening on the lateral wall in cover groove, the opening is used for supplying the holding is chewed to toothpaste, just the opening still be used for with the protruding joint of joint, with fixed the toothbrush head.

The clamping bulge is connected with the connecting part and the mounting hole; the clamping bulge is integrally wedge-shaped, and the cross section area of the clamping bulge is gradually reduced from one side close to the connecting part to one side of the mounting hole; an arc-shaped notch is formed in one side, close to the connecting part, of the clamping protrusion, a protruding part is arranged on the side wall of the opening, and the protruding part is used for being clamped with the arc-shaped notch; the cross section of the toothpaste nozzle is oval, and one side of the opening, which is far away from the connecting part, is an oval part matched with the toothpaste nozzle.

After the technical scheme is adopted, the utility model discloses beneficial effect does:

1. through the toothpaste connector that sets up for realize detachable assembly through helicitic texture between toothpaste and the connector, and then made things convenient for the change of toothpaste, reduced toothpaste replacement cost. And, the check valve protrusion connector body on the toothpaste connector, and when toothpaste connector fitting, in the cavity of check valve disect insertion brush holder, the check valve withdraws from the brush holder when effectively preventing crowded toothpaste for crowded toothpaste operation is lighter, and simultaneously, check valve eccentric settings is on the connector body, makes the brush holder after the installation be located the eccentric position of handle, accords with the ergonomics of brushing teeth, has promoted user's experience and has felt. In addition, through the assembly of the clamping column arranged on the toothpaste connector and the clamping hole arranged on the brush handle, the stability of installation between the toothpaste connector and the brush handle is ensured, and the toothpaste connector is prevented from being extruded by toothpaste when the brush rod is pressed and retreats from the brush handle to one side of the handle.

2. The toothbrush head is sleeved with the assembly end of the brush handle through the sleeving groove, so that the toothbrush head and the brush handle are detachably assembled, the toothbrush head is convenient to replace, and the convenience of replacing the toothbrush head can be effectively guaranteed.

3. Through first grafting portion and the cooperation of second grafting portion and buckling part and the cooperation of joint platform between brush holder and the handle, realize the detachable assembly between brush holder and the handle, not only promoted dismouting speed between brush holder and the handle, guarantee the convenience that toothpaste was changed, can show the steadiness that promotes the assembly between handle and the brush holder moreover, guarantee the holistic steadiness of toothbrush.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a first exploded view of the present embodiment;

FIG. 3 is a second exploded view of the present embodiment;

FIG. 4 is a schematic view of the construction of the toothpaste, toothpaste connector, handle, flexible squeezing portion, toothpaste nozzle and toothbrush head of this embodiment;

figure 5 is a schematic view of the construction of the handle, flexible squeeze, mouthpiece and head of this embodiment.

Description of reference numerals: 100. a handle; 101. an accommodating cavity; 110. a first insertion part; 120. a fastening part; 200. a brush handle; 202. installing a cavity; 203. a clamping hole; 204. an arc-shaped notch; 210. an installation part; 211. a socket joint part; 213. a second insertion part; 214. a clamping table; 215. a second recess; 220. a connecting portion; 230. an assembly end; 231. clamping the bulges; 300. a toothpaste connector; 301. an assembly hole; 302. an installation port; 310. a connector body; 311. mounting a column; 312. a first recess; 320. a clamping column; 330. a one-way valve; 400. a flexible pressing portion; 500. a toothpaste nozzle; 501. cutting; 510. a check valve; 520. a sealing cap; 600. a toothbrush head; 610. a mounting head; 611. a sleeving groove; 612. an opening; 613. a projection; 700. a toothbrush sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment as required without making a contribution, but all the embodiments are protected by the patent law within the scope of the claims of the present invention.

The present embodiment relates to a toothbrush for squeezing toothpaste in a negative pressure manner, as shown in fig. 1 to 5, comprising: handle 100, handle 200, paste connector 300, flexible squeeze 400, paste tip 500, and toothbrush head 600.

Specifically, the handle 100 is matched with a toothbrush sleeve 700, and the handle 100 is provided with a receiving cavity 101, wherein the receiving cavity 101 is used for receiving toothpaste. The handle 200 is detachably assembled with the handle 100, and the handle 200 has a hollow cavity and a squeezing opening. The toothpaste connector 300 is fixedly installed on the brush handle 200 near one side of the handle 100, and the toothpaste connector 300 is communicated with the hollow cavity. The toothpaste connector 300 is used for being detachably assembled with toothpaste, and the toothpaste connector 300 is also used for discharging toothpaste into the hollow cavity and preventing the discharged toothpaste from flowing back. The flexible pressing part 400 is fixedly assembled with the pressing port. The flexible extrusion part 400 is used for being extruded by a user, and changes the volume of the hollow cavity after extrusion, so that a negative pressure environment is formed in the hollow cavity to suck toothpaste. The toothpaste nozzle 500 is detachably assembled with one side of the brush handle 200 far away from the toothpaste connector 300. The toothpaste holder 500 is provided with a hollow passage therein, and the hollow passage is communicated with the hollow cavity of the brush handle 200. Toothbrush head 600 is removably mounted to handle 200 to facilitate replacement of toothbrush head 600. The toothbrush head 600 is provided with a receiving gap for installing the toothpaste nozzle 500.

Further, as shown in fig. 1-5, a mounting cavity 202 is disposed on one side of the handle 200 close to the handle 100, a clamping hole 203 is disposed on a side wall of the mounting cavity 202, and the toothpaste connector 300 includes: a connector body 310, a snap post 320, and a one-way valve 330.

Specifically, a mounting hole 301 is formed in the connector body 310 on a side away from the handle 200, and the mounting hole 301 is used for mounting toothpaste. The clamping posts 320 are disposed on the outer side wall of the connector body 310, and the clamping posts 320 are used for assembling with the clamping holes 203. The check valve 330 is disposed on the connector body 310 on a side away from the fitting hole 301, and the check valve 330 communicates with the fitting hole 301. When the hollow cavity is in a negative pressure environment, the one-way valve 330 is used to discharge toothpaste into the hollow cavity and prevent the discharged toothpaste from flowing back.

The connector body 310 is provided with a mounting opening 302 at an eccentric position, and a mounting post 311 protrudes from the mounting opening 302. Correspondingly, a sleeve joint part 211 is arranged in the installation cavity 202, and the sleeve joint part 211 protrudes out of the inner side wall of the installation cavity 202. When the connector body 310 and the brush handle 200 are mounted, the engaging portion 211 is engaged with the mounting post 311, and the engaging portion 211 is received in the mounting opening 302.

Preferably, as shown in fig. 1-5, the one-way valve 330 is disposed at an eccentric position of the connector body 310. The one-way valve 330 is installed on the mounting post 311 and protrudes out of the connector body 310, an outlet of the one-way valve 330 is communicated with the hollow cavity of the brush handle 200, and the one-way valve 330 and the connector body 310 are integrally formed.

Preferably, as shown in fig. 1-5, the connector body 310 is provided with a first recess 312, and the side wall of the mounting cavity 202 is provided with a first protrusion matching with the first recess 312, so that the connector body 310 and the handle 200 can be conveniently assembled by matching the first protrusion with the first recess 312. Be provided with the internal thread on the lateral wall of pilot hole 301, the end of extruding of toothpaste is provided with the external screw thread, and toothpaste passes through the cooperation between external screw thread and the internal thread and realizes the detachable assembly with connector body 310. The snap posts 320 are integrally formed with the connector body 310.

Further, as shown in fig. 1-5, handle 200 includes: a mounting portion 210, a connecting portion 220, and a mounting end 230. The mounting portion 210 is disposed near one side of the handle 100 and detachably assembled with the handle 100. Mounting cavity 202 is disposed within mounting portion 210, and mounting portion 210 is for mounting toothpaste connector 300. The connecting portion 220 and the mounting portion 210 are integrally formed, the connecting portion 220 extends toward one side of the toothbrush head 600, and the extrusion opening is located on the connecting portion 220. Mounting end 230 is located on connecting portion 220 on a side away from mounting portion 210, and mounting end 230 is adapted to be fitted with mouthpiece 500 and head 600.

Further, as shown in fig. 1-5, a first inserting portion 110 and a locking portion 120 are disposed on the handle 100 near the handle 200. The mounting portion 210 is provided with a second insertion portion 213 and a locking stage 214. The second inserting portion 213 is located at one side of the mounting portion 210, and is used for inserting the first inserting portion 110 into the second inserting portion 213. The clamping table 214 is located at the other side of the mounting portion 210 and is used for clamping with the clamping portion 120. Obviously, through the cooperation of first plug part 110 and second plug part 213 and the cooperation of clamping part 120 and joint platform 214, realize the detachable assembly between brush holder 200 and handle 100, not only promoted dismouting speed between brush holder 200 and handle 100, guaranteed the convenience that toothpaste was changed, can show the steadiness of promoting the assembly between handle 100 and brush holder 200 moreover, guarantee the holistic steadiness of toothbrush.

The outer side wall of the mounting portion 210 is provided with a second recess 215, and the second recess 215 is provided corresponding to the first protrusion. The second mating portion 213 is a mating groove communicating with the second recess 215. The first insertion part 110 protrudes from the inner sidewall of the handle 100 and extends toward one side of the handle 200 to be assembled with the insertion groove. The locking portion 120 is an arc-shaped protrusion protruding from the outer sidewall of the handle 100. The clamping table 214 protrudes out of the outer side wall of the mounting portion 210, and a groove matched with the arc-shaped protrusion is formed in the clamping table 214.

Further, as shown in fig. 1-5, a mounting hole is formed on one side of the mounting end 230, which is far away from the mounting portion 210, a through hole is formed on the wall of the mounting hole, the toothpaste nozzle 500 is communicated with the hollow cavity through the through hole, and the toothpaste nozzle 500 is inserted into the mounting hole in a sealing manner. In this embodiment, the toothpaste nozzle 500 is provided with a notch 501 which is butted with the through hole. The toothpaste nozzle 500 is provided with a check valve 510 inside, and the check valve 510 is integrally formed with the toothpaste nozzle 500. The lower end of the mouth 500 is provided with a sealing cap 520, and the sealing cap 520 is adapted to be fitted to the outer wall of the fitting end 230, thereby improving the airtightness of the fitting between the mouth 500 and the handle 200.

Further, as shown in fig. 1-5, the outer side wall of the mounting end 230 is provided with a clamping protrusion 231, one side of the toothbrush head 600 close to the handle 200 is provided with a mounting head 610, the mounting head 610 is provided with a socket groove 611, the side wall of the socket groove 611 is provided with an opening 612, the opening 612 is used for accommodating the toothpaste nozzle 500, and the opening 612 is also used for clamping with the clamping protrusion 231 to fix the toothbrush head 600.

Specifically, the catching protrusion 231 is connected between the connection part 220 and the mounting hole. Clamping protrusion 231 is integrally wedge-shaped, and the cross-sectional area of clamping protrusion 231 gradually decreases from one side close to connecting portion 220 to one side of the mounting hole. An arc notch 204 is formed in one side of the clamping protrusion 231, which is close to the connecting portion 220, a protruding portion 613 is formed on a side wall of the opening 612, and the protruding portion 613 is used for clamping with the arc notch 204. The cross section of the toothpaste nozzle 500 is oval, and the side of the opening 612 far away from the connecting part 220 is an oval part matched with the toothpaste nozzle 500.

The design principle of the present embodiment is roughly as follows: through the toothpaste connector 300, the detachable assembly is realized between the toothpaste and the connector through a thread structure, so that the replacement of the toothpaste is facilitated, and the replacement cost of the toothpaste is reduced. Moreover, check valve 330 on toothpaste connector 300 protrudes connector body 310, and when toothpaste connector 300 is assembled, check valve 330 is directly inserted into the hollow cavity of brush holder 200, check valve 330 withdraws from brush holder 200 when effectively preventing to squeeze toothpaste, make to squeeze toothpaste operation more light, and simultaneously, check valve 330 eccentric settings is on connector body 310, make brush holder 200 after the installation be located the eccentric position of handle 100, accord with the ergonomics of brushing teeth, user's experience sense has been promoted. In addition, the clamping column 320 arranged on the toothpaste connector 300 is assembled with the clamping hole 203 arranged on the brush handle 200, so that the stability of installation between the toothpaste connector 300 and the brush handle 200 is ensured, and the toothpaste connector 300 is prevented from being extruded by toothpaste to withdraw from the brush handle 200 towards one side of the handle 100 when the brush rod is pressed. In addition, toothbrush head 600 cup joints with assembly end 230 of brush holder 200 through cup joint groove 611 to realize detachable assembly between toothbrush head 600 and the brush holder 200, not only made things convenient for toothbrush head 600's change, but also can effectively guarantee the convenience that toothbrush head 600 changed.

The above description is only for the purpose of illustration and not limitation, and other modifications or equivalent replacements made by those skilled in the art to the technical solution of the present invention should be covered by the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A toothbrush for squeezing toothpaste in a negative pressure mode is characterized by comprising:

the handle (100), wherein the handle (100) is provided with an accommodating cavity (101);

the toothbrush handle (200) is detachably assembled with the handle (100), and the toothbrush handle (200) is provided with a hollow cavity and an extrusion opening;

the toothpaste connector (300) is fixedly mounted on one side, close to the handle (100), of the brush handle (200), the toothpaste connector (300) is communicated with the hollow cavity, the toothpaste connector (300) is used for being detachably assembled with toothpaste, and the toothpaste connector (300) is further used for discharging toothpaste bodies into the hollow cavity and preventing the discharged toothpaste bodies from flowing back;

the flexible extrusion part (400) is fixedly assembled with the extrusion opening, the flexible extrusion part (400) is used for being extruded by a user, and the volume of the hollow cavity is changed after extrusion so as to form a negative pressure environment in the hollow cavity to suck toothpaste;

the toothpaste holder is characterized by comprising a toothpaste holder (500), the toothpaste holder (500) and the side, far away from the toothpaste connector (300), of the brush holder (200) are detachably assembled, a hollow channel is arranged in the toothpaste holder (500), and the hollow channel is communicated with the hollow cavity of the brush holder (200);

and the toothbrush head (600), toothbrush head (600) with detachable the assembling of brush holder (200) is convenient for toothbrush head (600) are changed, be provided with the confession on toothbrush head (600) the holding breach of toothpaste mouth (500) installation.

2. The toothbrush for squeezing toothpaste by using negative pressure as claimed in claim 1, wherein a mounting cavity (202) is disposed on a side of the handle (200) close to the handle (100), a locking hole (203) is disposed on a side wall of the mounting cavity (202), and the toothpaste connector (300) comprises:

the toothbrush handle connector comprises a connector body (310), wherein an assembling hole (301) is formed in one side, away from the toothbrush handle (200), of the connector body (310), and the assembling hole (301) is used for being assembled with toothpaste;

the clamping columns (320) are arranged on the outer side wall of the connector body (310), and the clamping columns (320) are used for being assembled with the clamping holes (203);

the one-way valve (330) is arranged on one side, far away from the assembling hole (301), of the connector body (310), the one-way valve (330) is communicated with the assembling hole (301), and when the hollow cavity is in a negative pressure environment, the one-way valve (330) is used for discharging toothpaste bodies into the hollow cavity and preventing the discharged toothpaste bodies from flowing back.

3. The toothbrush for squeezing toothpaste by using negative pressure as claimed in claim 2, wherein the one-way valve (330) is disposed at an eccentric position of the connector body (310), the one-way valve (330) protrudes from the connector body (310), and an outlet of the one-way valve (330) is communicated with the hollow cavity of the handle (200).

4. The toothbrush for squeezing toothpaste by adopting the negative pressure manner as claimed in claim 3, wherein the connector body (310) is provided with a first concave part (312), and the side wall of the mounting cavity (202) is provided with a first convex part matched with the first concave part (312); the one-way valve (330) is integrally formed with the connector body (310); the side wall of the assembling hole (301) is provided with an internal thread, the extrusion end of the toothpaste is provided with an external thread, and the toothpaste is detachably assembled with the connector body (310) through the matching between the external thread and the internal thread; the clamping column (320) and the connector body (310) are integrally formed.

5. The toothbrush for squeezing toothpaste by negative pressure according to claim 4, wherein the handle (200) comprises:

the mounting part (210) is close to one side of the handle (100) and detachably assembled with the handle (100), the mounting cavity (202) is arranged in the mounting part (210), and the mounting part (210) is used for assembling the toothpaste connector (300);

the connecting part (220) and the mounting part (210) are integrally formed, the connecting part (220) extends towards one side of the toothbrush head (600), and the extrusion opening is positioned on the connecting part (220); and the number of the first and second groups,

the assembling end (230) is located on the connecting portion (220) and far away from one side of the mounting portion (210), and the assembling end (230) is used for being assembled with the toothpaste mouth (500) and the toothbrush head (600) in an inserting mode.

6. The toothbrush for squeezing toothpaste by adopting the negative pressure manner as claimed in claim 5, wherein a first inserting part (110) and a buckling part (120) are arranged on one side of the handle (100) close to the brush handle (200); be provided with second grafting portion (213) and joint platform (214) on installation department (210), wherein second grafting portion (213) are located installation department (210) one side, and are used for the confession second grafting portion (213) that first grafting portion (110) were pegged graft, joint platform (214) are located installation department (210) opposite side, and be used for with buckle portion (120) joint.

7. The toothbrush for squeezing toothpaste by using negative pressure as claimed in claim 6, wherein a second concave portion (215) is disposed on an outer side wall of the mounting portion (210), the second concave portion (215) is disposed corresponding to the first convex portion, the second insertion portion (213) is an insertion groove communicated with the second concave portion (215), the first insertion portion (110) protrudes from an inner side wall of the handle (100) and extends toward the side of the handle (200) to be assembled with the insertion groove;

the clamping portion (120) is an arc-shaped protrusion protruding out of the outer side wall of the handle (100), the clamping platform (214) protrudes out of the outer side wall of the mounting portion (210), and a groove matched with the arc-shaped protrusion is formed in the clamping portion.

8. The toothbrush adopting the negative pressure mode to extrude toothpaste according to claim 7, wherein a mounting hole is formed in one side, far away from the mounting portion (210), of the assembling end (230), a through hole is formed in the wall of the mounting hole, the toothpaste nozzle (500) is communicated with the hollow cavity through the through hole, and the toothpaste nozzle (500) is hermetically inserted into the mounting hole.

9. The toothbrush for squeezing toothpaste by adopting the negative pressure manner as claimed in any one of claims 5 to 8, wherein a clamping protrusion (231) is arranged on the outer side wall of the assembling end (230), a mounting head (610) is arranged on one side of the toothbrush head (600) close to the toothbrush handle (200), a sleeve groove (611) is arranged on the mounting head (610), an opening (612) is arranged on the side wall of the sleeve groove (611), the opening (612) is used for accommodating the toothpaste nozzle (500), and the opening (612) is also used for clamping with the clamping protrusion (231) to fix the toothbrush head (600).

10. The toothbrush for squeezing toothpaste by adopting the negative pressure manner as claimed in claim 9, wherein the clamping protrusion (231) connects the connecting part (220) with the mounting hole; the clamping protrusion (231) is integrally wedge-shaped, and the cross sectional area of the clamping protrusion (231) is gradually reduced from one side close to the connecting part (220) to one side of the mounting hole; an arc-shaped notch (204) is formed in one side, close to the connecting part (220), of the clamping protrusion (231), a protruding part (613) is formed in the side wall of the opening (612), and the protruding part (613) is used for being clamped with the arc-shaped notch (204); the cross section of the toothpaste nozzle (500) is oval, and one side of the opening (612) far away from the connecting part (220) is an oval part matched with the toothpaste nozzle (500).