CN215130582U

CN215130582U - Tooth flushing device

Info

Publication number: CN215130582U
Application number: CN202023121862.XU
Authority: CN
Inventors: 刘洋; 朱学仕; 黄道臣; 黄拔梓
Original assignee: Dongguan Lebond Electronic Technology Co Ltd
Current assignee: Dongguan Lebond Electronic Technology Co Ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-12-14
Anticipated expiration: 2030-12-21

Abstract

The embodiment of the application provides a tooth flushing device, which comprises a host machine, a spray head and a mounting assembly arranged on the host machine, wherein the spray head can be assembled and disassembled on the host machine through the mounting assembly; the nozzle comprises a connecting rod, one end of the connecting rod is provided with a nozzle, and the connecting rod is provided with a clamping part; the mounting assembly comprises a lock cylinder assembly capable of moving in a reciprocating manner under the action of external force, the lock cylinder assembly comprises a lock cylinder, and the lock cylinder is provided with a plug bush in plug fit with the connecting rod and a lock catch in clamping fit with the clamping part; the lock core assembly is arranged to be capable of moving to a locking position after the connecting rod is inserted into the plug bush and the sprayer is pressed, so that the lock catch is clamped with the clamping part and locks the sprayer; the lock core subassembly still sets up to and can remove to the unblock position after pressing the shower nozzle that is in locking state, makes hasp and joint portion break away from and with the shower nozzle unblock. The tooth flushing device provided by the embodiment of the application can be convenient for mounting and dismounting the spray head.

Description

Tooth flushing device

Technical Field

The application relates to the technical field of tooth flushing devices, in particular to a tooth flushing device.

Background

The mode that the tooth flusher nozzle is installed on the tooth flusher main machine is generally divided into two modes: a clamping buckling mode and a magnetic attraction assembling mode. Wherein, the assembly shower nozzle mode of magnetism is more single, leads to the installation of shower nozzle and tooth ware host computer unstable very easily during the assembly, and the shower nozzle takes place to rock easily during the use. Screens lock mode need increase parts such as screens, button and spring, destroys outward appearance integrality easily and the user installation shower nozzle step is more loaded down with trivial details, and the user skids easily when using up to dismantle and causes the dismantlement difficulty, has brought the use experience of range upon range for the user.

Disclosure of Invention

The technical scheme of this application provides a towards tooth ware, can solve the shower nozzle installation that exists among the prior art and dismantle inconvenient problem.

The embodiment of the application provides a tooth flushing device, which comprises a host machine, a spray head and a mounting assembly arranged on the host machine, wherein the spray head can be assembled and disassembled on the host machine through the mounting assembly; the sprayer comprises a connecting rod, one end of the connecting rod is provided with a nozzle, an outflow channel communicated with the nozzle is arranged in the connecting rod, the outflow channel is communicated with an outflow channel arranged in the host machine, and the connecting rod is provided with a clamping part; the mounting assembly comprises a shell arranged on the host machine, a lock cylinder assembly arranged in the shell and a first elastic piece; the lock core assembly comprises a lock core and an articulated piece hinged on the lock core, the lock core is provided with a plug bush in plug fit with the connecting rod and a lock catch in clamping fit with the clamping part, and the articulated piece is provided with a sliding part; the shell is provided with a sliding guide part and a first opening, the sliding guide part is used for being in sliding fit with the sliding part, the sliding guide part is provided with a first limiting part and a second limiting part, and the first opening is used for allowing the connecting rod to be inserted into the plug bush and allowing the lock catch to extend out of the shell; the first elastic piece is arranged between the host and the lock cylinder; the lock core assembly is arranged to be pushed by the connecting rod to move to a first position along a first direction in the process of inserting the connecting rod into the plug bush and pressing the sprayer, and can move to a locking position along the opposite direction of the first direction under the action of the elastic force of the first elastic piece after the external force applied to the sprayer is removed, when the lock core assembly is located at the locking position, the sliding part is limited at the first limiting part, and the lock catch is clamped with the clamping part and locks the sprayer to enable the sprayer to be in a locking state; the lock core subassembly still sets up to being in locking state the shower nozzle press extremely sliding part with behind the spacing portion butt of second to removing to apply can be in behind the external force on the shower nozzle under the spring action of first elastic component follow the opposite direction of first direction removes to the unblock position, the lock core subassembly is in during the unblock position, the hasp with joint portion breaks away from and will the shower nozzle unblock.

Optionally, in a rotation plane of the hinge, when the plug assembly is in the unlocking position, a connection line between a rotation center of the hinge and the sliding part is a reference line;

the lock core subassembly is still including locating second elastic component on the lock core, second elastic component butt in the lock core with between the articulated elements, the second elastic component sets up to be in the articulated elements rotates to the sliding part is deviated when the reference line, has the messenger the articulated elements rotates to the sliding part is located resilience force on the reference line.

Optionally, a first guide block and a second guide block are arranged on the inner wall of the housing, a guide groove is formed between the first guide block and the second guide block, a first concave portion is arranged on the side surface of the first guide block facing the guide groove, and a second concave portion is arranged on the side surface of the second guide block facing the guide groove;

the sliding guide part comprises the first guide block, the second guide block and the guide groove, the first concave part is the first limiting part, and the second concave part is the second limiting part.

Optionally, a guide inclined surface is arranged on a side surface of the first guide block, which faces away from the guide groove;

the sliding part can slide along the guide inclined plane to an inlet of the first end of the guide groove in the process that the lock cylinder assembly moves to the first position along the first direction;

in the process that the lock cylinder assembly moves to the locking position along the direction opposite to the first direction, the sliding part can slide into the guide groove from the first end of the guide groove under the action of the resilience force of the second elastic piece and slide to the first limiting part;

during the process that the lock core assembly moves to the unlocking position along the direction opposite to the first direction, the sliding part can slide out of the second end of the guide groove under the action of the resilience force of the second elastic piece and return to the reference line.

Optionally, the hinge is disposed at an outer side of the lock cylinder, the hinge includes a rotating arm, two ends of the rotating arm are respectively provided with a hinge shaft and the sliding portion, and the hinge shaft is rotatably disposed in an installation hole disposed on the lock cylinder and extends into the lock cylinder;

the lock core is internally provided with a fixed sleeve, the second elastic piece is limited in the fixed sleeve, and one end of the second elastic piece is abutted against the hinge shaft.

Optionally, a first end of the lock catch is connected to the lock cylinder, and a second end of the lock catch extends out of the first opening and is provided with a clamping matching portion in clamping matching with the clamping portion;

the lock core assembly comprises a plurality of lock catches, and the lock catches are gradually gathered together under the extrusion of the hole wall of the first opening in the process that the lock core assembly moves along the first direction; the lock cylinder assembly is characterized in that the plurality of lock catches are further arranged to be gradually opened in the process that the lock cylinder assembly moves along the opposite direction of the first direction.

Optionally, the lock cylinder includes a ring sleeve, an annular plate disposed at a first end of the ring sleeve, and a bottom cover disposed at a second end of the ring sleeve;

the lock catch is arranged on the side surface of the annular plate, which is far away from the bottom cover;

the bottom cover is provided with a second opening through which the connecting rod penetrates, and the inserting sleeve is arranged on the bottom surface of the annular plate and is coaxial with the central hole of the annular plate and the second opening.

Optionally, be equipped with the promotion portion on the connecting rod, the promotion portion sets up to be pressing the shower nozzle in order to promote the plug subassembly removes the in-process with the side butt that deviates from of annular plate the bottom.

Optionally, the articulated elements are arranged in two numbers, the two articulated elements are symmetrically arranged on the ring sleeve and located outside the ring sleeve, the shell is provided with two sliding guide parts, and the two sliding guide parts are respectively in sliding fit with the sliding parts of the two articulated elements.

Optionally, the housing includes a sleeve and an upper cover disposed at a first end of the sleeve, and a second end of the sleeve is disposed on the host;

the upper cover is provided with the first opening, and the first elastic piece is abutted between the bottom cover and the host machine.

The utility model provides a towards tooth ware connects the shower nozzle on towards tooth ware host computer through installation component detachably, presses the shower nozzle and can install the shower nozzle and lock on towards tooth ware host computer through the lock core subassembly of installation component, and presses the shower nozzle once more, and the lock core subassembly can be with the shower nozzle unblock to can dismantle the shower nozzle from towards tooth ware host computer, so, the installation and the dismantlement of shower nozzle are all through pressing the realization, the simple operation.

In addition, because the connecting rod that all leans on to press the shower nozzle and through the shower nozzle at the installation with dismantle the shower nozzle in-process promotes the lock core subassembly and removes, finally realizes the locking and the unblock of shower nozzle to need not to rely on extra driving piece to drive the motion of lock core subassembly in order to realize the unblock, can avoid setting up unblock switch etc. on the shell of installation component, guaranteed the integrality on installation component outward appearance surface.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a schematic cross-sectional view of a dental irrigator according to an embodiment of the present disclosure;

FIG. 2a is a schematic illustration of the sprinkler head of FIG. 1 inserted and locked within a mounting assembly in some exemplary embodiments;

FIG. 2b is a schematic view of the cross-sectional structure A-A in FIG. 2 a;

FIG. 3a is a schematic view of the plug assembly of FIG. 2a after unlocking the spray head;

FIG. 3B is a schematic view of the cross-sectional structure B-B in FIG. 3 a;

FIG. 4 is a schematic illustration of an assembled structure of the mounting assembly of FIG. 2a in some exemplary embodiments;

FIG. 5 is an exploded view of the mounting assembly of FIG. 4 in some exemplary embodiments;

FIG. 6 is a schematic structural view of a sleeve of a housing of the mounting assembly of FIG. 4 in some exemplary embodiments;

FIG. 7 is a schematic structural view of a plug assembly of the mounting assembly of FIG. 4 in some exemplary embodiments;

fig. 8 is a bottom view of the plug assembly of fig. 7 in some exemplary embodiments without a bottom cap installed;

FIG. 9 is a schematic structural view of the showerhead of FIG. 1 in some exemplary embodiments;

reference numerals:

1. a spray head, 11, a connecting rod, 111, a clamping part, 112, a pushing part, 113, a spray nozzle, 114 and an outflow channel,

2. the outer shell is provided with a plurality of grooves,

21. a sleeve 211, a first guide block 212, a second guide block 213, a guide groove 2131, a first end of the guide groove 2132, a second end of the guide groove 2111, a first limit part 2112, a guide slope 2121, a second limit part,

22. an upper cover 221, a first opening 2211 and a notch groove;

3. the lock core component is provided with a lock core component,

31. the lock core 311, the plug bush 312, the lock catch 3121, the clamping matching part 313, the ring sleeve 314, the annular plate 3141, the central hole of the annular plate 315, the bottom cover 3151, the second opening 316, the fixing sleeve 317 and the annular convex rib,

32. a hinge member 321, a rotating arm 322, a hinge shaft 323, a sliding part,

33. a second elastic member;

4. a first elastic member;

5. the host computer is used for storing the data,

6. and (6) mounting the assembly.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

As shown in fig. 1, 2a, 3a, and 5, an embodiment of the present application provides a tooth rinsing device, which includes a main body 5, a nozzle 1, and a mounting assembly 6 disposed on the main body 5, wherein the nozzle 1 is detachably mounted on the main body 5 through the mounting assembly 6.

Shower nozzle 1 includes connecting rod 11, the one end of connecting rod 11 is equipped with spout 113, connecting rod 11 inside be equipped with the outflow passageway 114 of spout 113 intercommunication, outflow passageway 114 set up into with the play water flow channel intercommunication that sets up in the host computer 5, be equipped with joint portion 111 on the connecting rod 11.

The mounting assembly 6 comprises a shell 2 arranged on the main machine 5, a lock core assembly 3 arranged in the shell 2 and a first elastic element 4.

The lock core assembly 3 comprises a lock core 31 and a hinge assembly 32 hinged on the lock core 31, the lock core 31 is provided with a plug bush 311 matched with the connecting rod 11 in a plug-in manner and a lock catch 312 matched with the clamping portion 111 in a clamping manner, and the hinge assembly 32 is provided with a sliding portion 323.

Be equipped with slide guide portion and first trompil 221 on the shell 2, slide guide portion be used for with slide portion 323 sliding fit, slide guide portion is equipped with first spacing portion 2111 and the spacing portion 2121 of second, first trompil 221 is used for supplying connecting rod 11 inserts in the plug bush 311 and supply hasp 312 stretches out outside the shell 2.

The first elastic member 4 is disposed between the main body 5 and the key cylinder 31.

The lock core subassembly 3 sets up to be in with connecting rod 11 inserts in the plug bush 311 and press 1 in-process of shower nozzle can by connecting rod 11 promotes and moves to the primary importance along the first direction to removing to exert after removing the external force on the shower nozzle 1 can be in under the spring action of first elastic component 4 follow the opposite direction of first direction removes to the locking position (in some examples the locking position is the position that figure 2a shows), lock core subassembly 3 is in when the locking position, sliding part 323 is spacing in first spacing portion 2111 department, just hasp 312 with joint portion 111 joint will shower nozzle 1 locks, makes the shower nozzle is in locking condition.

The lock core subassembly 3 still sets up to be in locking state shower nozzle 1 press extremely sliding part 323 with behind the spacing portion 2121 butt of second to removing to exert behind the external force on the shower nozzle 1 can be in under the spring action of first elastic component 4 follow the opposite direction of first direction removes to the unblock position (promptly, when not installing shower nozzle 1 the initial position of lock core subassembly 3, in some examples the position that unlocks is shown in fig. 3 a), lock core subassembly 3 is in when the unblock position, hasp 312 with joint portion 111 breaks away from and will shower nozzle 1 unblock.

The tooth flushing device provided by the embodiment of the application is characterized in that the spray head 1 is detachably connected onto the tooth flushing device host 5 through the mounting assembly 6, the spray head 1 can be mounted and locked on the tooth flushing device host 5 through the lock cylinder assembly 3 of the mounting assembly 6 by pressing the spray head 1, the spray head 1 can be unlocked by the lock cylinder assembly 3 again, the spray head 1 can be detached from the tooth flushing device host 5, and therefore the spray head 1 can be mounted and detached through pressing, and the operation is convenient.

In addition, because all rely on pressing shower nozzle 1 and promote lock core subassembly 3 to remove through connecting rod 11 of shower nozzle 1 at installation and dismantlement shower nozzle 1 in-process, finally realize the locking and the unblock of shower nozzle 1 to need not rely on extra driving piece to drive lock core subassembly 3 motion in order to realize the unblock, can avoid setting up unblock switch etc. on the shell 2 of installation component 6, guaranteed the integrality of installation component 6 outward appearance surface.

In some exemplary embodiments, as shown in fig. 1 and 9, the first end of the connecting rod 11 of the nozzle 1 is provided with the nozzle 113, and after the nozzle 1 is connected to the main body 5 of the tooth irrigator through the mounting assembly 6, the second end of the connecting rod 11 can be connected to the main body 5 of the tooth irrigator and communicates the water outlet channel inside the main body 5 with the nozzle 113 of the nozzle 1 through the outflow channel 114 inside the connecting rod 11, so that the cleaning liquid inside the main body 5 of the tooth irrigator can be sprayed out of the nozzle 113 through the outflow channel 114 inside the connecting rod 11 to clean teeth.

As shown in fig. 3b, in some exemplary embodiments, in the rotation plane of the hinge member 32, when the plug assembly 3 is in the unlocking position, a line connecting the rotation center of the hinge member 32 and the sliding portion 323 is a reference line L.

As shown in fig. 2a, 3a, and 5, the plug assembly 3 further includes a second elastic member 33 disposed on the plug 31, the second elastic member 33 abuts between the plug 31 and the hinge 32, and the second elastic member 33 is configured to have a resilient force that allows the hinge 32 to rotate until the sliding portion 323 is located on the reference line L when the hinge 32 rotates until the sliding portion 323 deviates from the reference line L.

In one example of this embodiment, the reference line L may be disposed in parallel with the first direction. The hinge 32 may be hinged to the cylinder core 31 by a hinge shaft 322, and during the movement of the cylinder assembly 3 in the first direction, the sliding portion 323 of the hinge 32 slides along the sliding guide, and the sliding portion 323 of the hinge 32 rotates counterclockwise about the hinge shaft 322 centering on the hinge shaft 322. During the movement of the plug assembly 3 in the opposite direction of the first direction, the sliding portion 323 of the hinge 32 slides along the sliding guide, and the sliding portion 323 of the hinge 32 rotates clockwise about the hinge 322 centering on the hinge 322. When the hinge 32 rotates counterclockwise or clockwise until the sliding portion 323 deviates from the reference line L, the second elastic member 33 is compressed by the hinge 32 to be elastically deformed, so that the second elastic member 33 has a resilient force that causes the hinge 32 to rotate until the sliding portion 323 is located on the reference line L.

As shown in fig. 2b, 3b and 6, in some exemplary embodiments, a first guide block 211 and a second guide block 212 are disposed on an inner wall of the housing 2, a guide groove 213 is formed between the first guide block 211 and the second guide block 212, a side of the first guide block 211 facing the guide groove 213 is provided with a first recess, and a side of the second guide block 212 facing the guide groove 213 is provided with a second recess; the sliding guide portion includes the first guide block 211, the second guide block 212, and the guide groove 213, the first recessed portion is the first limiting portion 2111, and the second recessed portion is the second limiting portion 2121.

As shown in fig. 6, in an example of the present embodiment, a side surface of the first guide block 211 facing away from the guide groove 213 is provided with a guide slope 2112.

During the movement of the plug assembly 3 in the first direction to the first position, the sliding portion 323 can slide along the guide slope 2112 to the entrance of the first end 2131 of the guide groove 213.

During the process that the plug assembly 3 moves to the locking position along the direction opposite to the first direction, the sliding portion 323 can slide into the guide groove 213 from the first end 2131 of the guide groove 213 to the first limiting portion 2111 under the resilience of the second elastic member 33.

During the movement of the plug assembly 3 to the unlocking position in the direction opposite to the first direction, the sliding portion 323 can slide out of the second end 2132 of the guide groove 213 and return to the reference line L under the resilient force of the second elastic member 33.

In this example, the opposite sides of the first guide block 211 and the second guide block 212 form the guide surfaces of the guide groove 213, which are used for guiding the sliding direction of the sliding part 323 during the movement of the plug assembly 3 and limiting the sliding part 323. A portion of the housing 2 corresponding to the guide groove 213 may be hollowed out in the same opening shape as the guide groove 213.

In some exemplary embodiments, as shown in fig. 2a, a first end of the lock catch 312 is connected to the lock cylinder 31, and a second end of the lock catch 312 protrudes from the first opening 221 and is provided with a snap-fit portion 3121 for snap-fitting with the snap-fit portion 111.

As shown in fig. 4 and 7, the lock catch 312 is provided in a plurality, and the plurality of lock catches 312 are arranged to be gradually gathered by being pressed by the hole wall of the first opening 221 during the movement of the lock plug assembly 3 along the first direction; the plurality of catches 312 are also configured to gradually expand during movement of the plug assembly 3 in a direction opposite the first direction.

In an example of this embodiment, when the plug assembly 3 moves to the first position along the first direction, the latch fitting portion 3121 of the latch 312 just or already latches with the latch portion 111, and then after the external force applied to the spray head 1 is removed, the plug assembly 3 moves to the locking position from the first position along the direction opposite to the first direction, and when the plug assembly 3 is in the locking position, the latch fitting portion 3121 of the latch 312 still latches with the latch portion 111. Can guarantee through the inclination of the spigot surface of design guide way 213 that lock core subassembly 3 follows the displacement that the primary importance removed to the locking position is less, can guarantee like this that lock core subassembly 3 follows the primary importance removes to the locking position in-process, the joint cooperation portion 3121 of hasp 312 still can with the inseparable joint of joint portion 111.

As shown in fig. 2a, in an example of the present embodiment, the clamping portion 111 may be a clamping groove disposed on an outer surface of the connecting rod 11, and the clamping fitting portion 3121 may be a clamping block that is clamped and fitted with the clamping groove.

As shown in fig. 2a, 3a, and 5, in some exemplary embodiments, the lock cylinder 31 includes a collar 313, an annular plate 314 disposed at a first end of the collar 313, and a bottom cap 315 disposed at a second end of the collar 313.

The latch 312 is disposed on a side of the annular plate 314 facing away from the bottom cover 315, a first end of the latch 312 is connected to the annular plate 314, and a second end of the latch 312 extends out of the housing 2 from the first opening 221. The catch 312 may be provided in plurality, with the plurality of catches 312 being disposed around the central aperture 3141 of the annular plate 314.

The bottom cover 315 is provided with a second opening 3151 through which the connecting rod 11 passes, and the insert sleeve 311 is disposed on the bottom surface of the annular plate 314 and is coaxially disposed with the central hole 3141 of the annular plate 314 and the second opening 3151. The central hole 3141 of the annular plate 314 may have the same diameter as the inner diameter of the insert 311.

As shown in fig. 2a and 3a, in an example of the present embodiment, the housing 2 includes a sleeve 21 and an upper cover 22 disposed at a first end of the sleeve 21, and a second end of the sleeve 21 is disposed on the host 5.

The upper cover 22 is disposed opposite to the annular plate 314, the upper cover 22 is provided with the first opening 221, and the diameter of the first opening 221 may be larger than the central hole 3141 of the annular plate 314. The wall of the first opening 221 may be provided with a notch 2211, and the lock catch 312 may be located in the notch 2211. The number of the relief grooves 2211 is the same as the number of the latches 312, and a plurality of relief grooves 2211 correspond to a plurality of latches 312 one to one.

The side surface of the bottom cover 315 facing away from the annular plate 314 may be provided with an annular rib 317, the first elastic member 4 may be a first spring and is sleeved outside the annular rib 317, and two ends of the first spring abut against the bottom cover 315 and the host 5, respectively. The annular rib 317 is disposed coaxially with the second opening 3151.

The second end of the connecting rod 11 of the spray head 1 (the first end of the connecting rod 11 is provided with the nozzle 113) can be inserted into the plug bush 311 of the lock cylinder 31 from the first opening 221 on the upper cover 22 of the housing 2, and can extend out of the lock cylinder assembly 3 through the second opening 3151 and the annular rib 317 on the bottom cover 315 in sequence so as to be connected with the punch main machine 5.

As shown in fig. 2a and 3a, in some exemplary embodiments, the connecting rod 11 is provided with a pushing portion 112, and the pushing portion 112 is configured to abut against a side of the annular plate 314 facing away from the bottom cover 315 during pressing the spray head 1 to push the plug assembly 3 to move.

In one example of this embodiment, the aperture of the first opening 221 may be larger than the aperture of the central hole 3141 of the annular plate 314, so that a portion of the annular plate 314 near the central hole thereof may be exposed by the first opening 221 to abut against the pushing part 112 during the movement of the pushing plug assembly 3. The pushing portion 112 may be an annular boss provided on an outer surface of the connecting rod 11 of the head 1. Alternatively, the pushing portion 112 may be an annular groove provided on the outer surface of the connecting rod 11 of the spray head 1, and the outer diameter of the portion of the connecting rod 11 located on the first end side of the annular groove facing the connecting rod 11 is larger than the aperture of the central hole 3141 of the annular plate 314, so that when the spray head 1 is pressed, the wall of the annular groove facing the annular plate 314 abuts against the top surface of the annular plate 314 to push the lock cylinder 31 to move along the first direction, and thus the whole lock cylinder assembly 3 moves along the first direction.

As shown in fig. 2a, 3a, 5, and 8, in an example of this embodiment, the hinge element 32 is disposed outside the ring sleeve 313, the hinge element 32 includes a rotating arm 321, two ends of the rotating arm 321 are respectively provided with a hinge 322 and the sliding part 323, and the hinge 322 is rotatably disposed in a mounting hole disposed on the ring sleeve 313 and extends into the ring sleeve 313.

A fixing sleeve 316 is further disposed on a side of the annular plate 314 facing the bottom cover 315 in the ring sleeve 313, and the second elastic element 33 is limited in the fixing sleeve 316. A fixed sleeve 316 is positioned in the annular space between the ring sleeve 313 and the insert sleeve 311, and one end of the hinge shaft 322 extending into the ring sleeve 313 may be positioned in the fixed sleeve 316. The second elastic member 33 may be a second spring, a first end of the second spring may abut against the bottom cover 315, and a second end of the second spring may abut against the hinge shaft 322.

The outer side of the ring sleeve 313 may be provided with a mounting groove in which the hinge member 32 is located. The fixing sleeve 316, which is a partially formed portion of both the ring sleeve 313 and the sleeve 311, allows the mounting hole of the ring sleeve 313 to communicate with the inside of the fixing sleeve 316, and the hinge shaft 322 of the hinge member 32 to pass through the mounting hole and extend into the inside of the fixing sleeve 316.

As shown in fig. 2a, 3a, and 5, in an example of the present embodiment, the hinge shaft 322 may have a semi-cylindrical structure, and the second end of the second spring may abut against a semi-arc surface of the hinge shaft 322. The semi-circular arc surface of the hinge shaft 322 is rotatably matched with the mounting hole arranged on the ring sleeve 313, and can also be rotatably supported in a supporting hole arranged on the common part of the fixed sleeve 316 and the plug sleeve 311. During the counterclockwise rotation or clockwise rotation of the hinge member 32, the semi-circular arc surface of the hinge shaft 322 may press the second spring to compress and deform the second spring. In other examples, the portion of the hinge shaft 322 abutting the second spring may be a flat surface.

In some exemplary embodiments, the hinge members 32 may be provided in two, the two hinge members 32 are symmetrically disposed on the ring sleeve 313 and located outside the ring sleeve 313, and two sliding guides are provided on the housing 2, and the two sliding guides are slidably engaged with the sliding portions 323 of the two hinge members 32, respectively. Therefore, the action of the lock core assembly 3 is more stable and smooth in the moving process.

In some exemplary embodiments, when the plug assembly 3 moves to the first position along the first direction, the first elastic member 4 may reach a maximum elastic compression deformation amount to limit the plug assembly 3 from continuing to move along the first direction. When the plug assembly 3 is in the locking position, the sliding portion 323 abuts against the first limiting portion 2111. After the plug assembly 3 moves to the sliding portion 323 and the second limiting portion 2121 in the first direction, the second limiting portion 2121 limits the sliding portion 323 to limit the plug assembly 3 to continue moving in the first direction. When the lock core assembly 3 is located at the unlocking position, the lock core 31 abuts against the upper cover 22 under the elastic force of the first elastic piece 4.

As shown in fig. 2a to 6, in some exemplary embodiments, when the spray head 1 is not installed, or the spray head 1 is inserted into the installation assembly 6 and the spray head 1 is not pressed, the plug assembly 3 is located at the initial position (i.e., the unlocking position), at this time, the lock cylinder 31 abuts against the upper cover 22 of the housing 2 under the elastic force of the first elastic member 4, and the second ends of the plurality of latches 312 are in the open state. When the spray head 1 is inserted into the mounting assembly 6 and the spray head 1 is pressed, the pushing portion 112 on the connecting rod 11 of the spray head 1 abuts against the top surface of the annular plate 314 of the lock cylinder 31, the lock cylinder 31 is pushed by the pushing portion 112 on the connecting rod 11 to move the lock cylinder assembly 3 along the first direction, during the moving process, the first elastic member 4 is gradually compressed, the lock catches 312 are pressed by the hole wall of the first opening 221, so that the second ends of the plurality of lock catches 312 gradually converge towards the connecting rod 11, the sliding portion 323 of the hinge piece 32 on the lock cylinder 31 slides along the guide inclined surface 2112 of the first guide block 211, when the first elastic member 4 reaches the maximum compression deformation amount, the lock cylinder assembly 3 moves to the first position and cannot move continuously along the first direction, at this time, the second ends of the plurality of lock catches 312 converge, the clamping matching portion 3121 of the second ends of the lock catches 312 is clamped with the clamping portion 111 of the connecting rod 11, the sliding portion 323 slides along the guide slope 2112 to the entrance of the first end 2131 of the guide groove 213. Then, when the nozzle 1 is stopped being pressed, the plug assembly 3 moves in the opposite direction of the first direction under the elastic force of the first elastic member 4, the sliding portion 323 stops sliding when sliding into the guide groove 213 from the first end 2131 of the guide groove 213 to the first limiting portion 2111 under the elastic force of the second elastic member 33, at this time, due to the limiting effect of the first limiting portion 2111 on the sliding portion 323, the plug assembly 3 stops moving in the opposite direction of the first direction and stops at the locking position, at this time, the latch 312 still engages with the engaging portion 111 of the connecting rod 11 (since the displacement of the plug assembly 3 moving from the first position to the locking position is very small after the nozzle 1 is stopped being pressed, the latch 312 still tightly engages with the engaging portion 111), and the nozzle 1 is locked, and the nozzle 1 is in the locked state, that is, the installation of the nozzle 1 is completed.

When the head 1 is disassembled, the head 1 in a locked state is pressed, the pushing part 112 of the connecting rod 11 pushes the lock cylinder 31 to move the lock cylinder assembly 3 in a first direction, during the movement, the sliding part 323 of the hinge 32 slides along the guide groove 213, when the sliding part 323 slides to abut against the second limiting part 2121, the lock cylinder assembly 3 cannot move continuously in the first direction due to the limitation of the sliding part 323 by the second limiting part 2121, at this time, the head 1 is stopped being pressed, the lock cylinder assembly 3 starts moving in the opposite direction of the first direction under the elastic force of the first elastic member 4, and the sliding part 323 continues sliding along the guide groove 213, and at the same time, the snap-fit part 3121 of the second end of the latch 312 starts disengaging from the snap-fit part 111 of the connecting rod 11 of the head 1 and gradually leaves away from the connecting rod 11 (i.e., the second ends of the plurality of latches 312 gradually), when the lock cylinder assembly 3 moves in the opposite direction of the first direction to abut against the upper cover 22 of the housing 2, at this time, the plug assembly 3 reaches the unlocking position (i.e., the initial position), the plurality of latches 312 are restored to the initial state (the second ends of the plurality of latches 312 are in the opened state), the snap-fit portion 3121 of the latch 312 is separated from the snap-fit portion 111 of the connecting rod 11 of the head 1, the head 1 is in the unlocking state, and the head 1 can be detached at this time. During the movement of the plug assembly 3 to the unlocking position (i.e., the initial position) in the direction opposite to the first direction, the sliding part 323 slides out of the second end 2132 of the guide groove 213 and returns to the reference line L (i.e., the position where the sliding part 323 returns to the state where the head 1 is not mounted) by the resilient force of the second elastic member 33.

Various features of the above-described embodiments may be combined in any combination, and for brevity, all possible combinations of the features of the above-described embodiments will not be described, however, the scope of the disclosure should be considered to be within the scope of the present application as long as there is no inconsistency between the combinations of the features.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A tooth flusher is characterized in that: the sprayer comprises a host, a sprayer and a mounting assembly arranged on the host, wherein the sprayer can be assembled on and disassembled from the host through the mounting assembly;

the sprayer comprises a connecting rod, one end of the connecting rod is provided with a nozzle, an outflow channel communicated with the nozzle is arranged in the connecting rod, the outflow channel is communicated with an outflow channel arranged in the host machine, and the connecting rod is provided with a clamping part;

the mounting assembly comprises a shell arranged on the host machine, a lock cylinder assembly arranged in the shell and a first elastic piece;

the lock core assembly comprises a lock core and an articulated piece hinged on the lock core, the lock core is provided with a plug bush in plug fit with the connecting rod and a lock catch in clamping fit with the clamping part, and the articulated piece is provided with a sliding part;

the shell is provided with a sliding guide part and a first opening, the sliding guide part is used for being in sliding fit with the sliding part, the sliding guide part is provided with a first limiting part and a second limiting part, and the first opening is used for allowing the connecting rod to be inserted into the plug bush and allowing the lock catch to extend out of the shell;

the first elastic piece is arranged between the host and the lock cylinder;

the lock core assembly is arranged to be pushed by the connecting rod to move to a first position along a first direction in the process of inserting the connecting rod into the plug bush and pressing the sprayer, and can move to a locking position along the opposite direction of the first direction under the action of the elastic force of the first elastic piece after the external force applied to the sprayer is removed, when the lock core assembly is located at the locking position, the sliding part is limited at the first limiting part, and the lock catch is clamped with the clamping part and locks the sprayer to enable the sprayer to be in a locking state;

the lock core subassembly still sets up to being in locking state the shower nozzle press extremely sliding part with behind the spacing portion butt of second to removing to apply can be in behind the external force on the shower nozzle under the spring action of first elastic component follow the opposite direction of first direction removes to the unblock position, the lock core subassembly is in during the unblock position, the hasp with joint portion breaks away from and will the shower nozzle unblock.

2. The dental irrigator of claim 1, wherein: in the rotating plane of the hinged part, when the lock cylinder component is in the unlocking position, a connecting line of the rotating center of the hinged part and the sliding part is a reference line;

3. The dental irrigator of claim 2, wherein: a first guide block and a second guide block are arranged on the inner wall of the shell, a guide groove is formed between the first guide block and the second guide block, a first sunken part is arranged on the side surface of the first guide block facing the guide groove, and a second sunken part is arranged on the side surface of the second guide block facing the guide groove;

4. The dental irrigator of claim 3, wherein: a guide inclined plane is arranged on the side surface of the first guide block, which is far away from the guide groove;

5. The dental irrigator of claim 2, wherein: the hinged part is arranged on the outer side of the lock cylinder and comprises a rotating arm, a hinged shaft and the sliding part are respectively arranged at two ends of the rotating arm, and the hinged shaft is rotatably arranged in an installation hole formed in the lock cylinder and extends into the lock cylinder;

6. The dental irrigator of claim 1, wherein: the first end of the lock catch is connected to the lock cylinder, and the second end of the lock catch extends out of the first opening and is provided with a clamping matching part in clamping matching with the clamping part;

7. The dental irrigator of claim 1, wherein: the lock core comprises a ring sleeve, an annular plate arranged at the first end of the ring sleeve and a bottom cover arranged at the second end of the ring sleeve;

8. The dental irrigator of claim 7, wherein: the connecting rod is provided with a pushing part, and the pushing part is arranged to be pressed on the nozzle to push the lock core assembly to move and the side face of the annular plate departing from the bottom cover is abutted.

9. The dental irrigator of claim 7, wherein: the articulated elements set up to two, two articulated elements symmetry sets up on the ring cover and lie in the ring cover outside, be equipped with two on the shell the sliding guide portion, two sliding guide portion respectively with two articulated elements the sliding part sliding fit.

10. The dental irrigator of claim 7, wherein: the shell comprises a sleeve and an upper cover arranged at the first end of the sleeve, and the second end of the sleeve is arranged on the host;