CN219089726U - Button mechanism for changing nozzle - Google Patents

Abstract

The utility model discloses a button mechanism for changing a nozzle, which is arranged on a main body of a tooth cleaner; the button mechanism includes: a movable member detachably mounted on the upper surface of the main body; the movable piece comprises a translation part and a pressing part which are vertically arranged, and the translation part and the pressing part are connected into a whole through a bridging part; the translation part is provided with a through hole for the nozzle to pass through and a plurality of elastic hooking parts; the plurality of elastic hooking parts extend outwards along the free ends of the translation parts; the two ends of the elastic piece respectively act on the side wall of the main body and the pressing part; further comprises: the area between the two retaining walls is used for the translation part to pass through and slide, and the free ends of the two retaining walls and the elastic hooking part form limit fit so as to limit the movable part to be separated from the retaining walls; the upper edge of the retaining wall is also provided with a blocking part; the button mechanism provided by the utility model solves the problems that the existing pressing piece is difficult to detach and install, and the pressing piece (movable piece) is easy to trip and the movement is not smooth.

Description

Button mechanism for changing nozzle

Technical Field

The utility model relates to the field of production of oral cleaning equipment, in particular to a button mechanism for replacing a nozzle.

Background

Nowadays, along with the improvement of living standard, people pay more attention to oral hygiene, and household tooth cleaners are widely popularized, teeth gaps are cleaned through water columns sprayed by the tooth cleaners, and oral cleaning becomes cleaner;

the existing nozzle of the tooth cleaner is detachably replaceable, so that space can be saved, the tooth cleaner is convenient to carry, different nozzle can be detachably assembled according to different positions and requirements by different plot functions (such as cleaning large tooth surfaces, cleaning tooth gaps, cleaning tongue fur and the like) of different shapes of the end parts of the nozzle, and therefore an installation structure for installing the nozzle is needed to be arranged on the tooth cleaner;

the existing mounting structure mostly adopts a direct-insertion structure, a pressing piece is combined with an elastic piece to form linear motion, a through hole is formed in the pressing piece for the clamping part of the nozzle to clamp in, the pressing piece is driven to reset by the action of the elastic piece after the nozzle is installed, and the clamping part of the nozzle is clamped to realize limit; although the mode realizes the installation limit or the unlocking and the taking-out of the nozzle, the structure is too complex and the installation is difficult, and the method is concretely as follows: (1) Firstly, the direct-inserting movable type water pump is arranged in the main body, and the internal installation of the water pump is difficult in structure forming, needs to be in butt joint with the opening of the water outlet pump after installation and cannot leak water, so that the internal installation needs a very complex structure, and the difficulty of manufacturing, forming, assembling and the like is high due to the fact that the pressing is smooth and not interfered, the alignment and limiting are required to be adjusted; (2) The installation position of the pressing piece is difficult to adjust, so that the attractive appearance is insufficient; in general, the closer the position of the pressing piece is to the top surface of the main body, the better the position of the pressing piece is, but a smooth and excessive arc is usually formed between the top surface and the side surface, so that the pressing part exposed outside the main body is difficult to manufacture (the radian matched with the arc is needed), the radian design of the pressing part of the pressing piece needs to be quite accurate, otherwise, the appearance degree after installation is quite poor, the hole site formed in the main body needs to be quite accurate due to the translation of the arc, and if the hole site is too large, the pressing part is not matched with the pressing piece, and a very large joint seam is leaked; if the opening is small, the assembly and the pressing displacement cannot be realized at all; (3) The nozzle is difficult to detach and replace, the nozzle is detachable and easy to pollute after being used, in addition, in the tooth cleaning process, water can flow to the clamping part along the outer wall of the nozzle, enter the position where the pressing piece is combined with the clamping part, impurities such as scale and the like appear after a period of use, the movement of the pressing piece is influenced, the movement is combined with the angle and the like of force application when the pressing piece presses, the phenomena such as clamping, unsmooth pressing and the like often appear, the replacement and maintenance are needed, otherwise, the nozzle is easy to be ejected by water pressure or the nozzle is difficult to take off after being blocked; the existing pressing piece is fixed in structure and difficult to release after limiting, so that adjustment, maintenance or replacement cannot be performed;

in summary, the existing mechanisms for replacing and assembling nozzles need to be further improved.

Disclosure of Invention

The utility model aims to overcome the defects or problems in the prior art and provide a button mechanism for replacing a nozzle, which has the advantages of simple structure, simple and convenient manufacture, easy realization and low cost, and solves the problems that the existing pressing piece is difficult to detach and install, and the pressing piece (movable piece) is easy to trip and unsmooth in movement.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a button mechanism for replacing the nozzle, which is installed to the main body of the dental washer, and is used for replacing and assembling the nozzle to the main body; the button mechanism includes:

a movable member detachably mounted on the upper surface of the main body; the movable piece comprises a translation part and a pressing part which are vertically arranged, and the translation part and the pressing part are connected into a whole through a bridging part; the translation part is provided with a through hole for the nozzle to pass through and a plurality of elastic hooking parts; the plurality of elastic hooking parts extend outwards along the free ends of the translation parts;

the two ends of the elastic piece respectively act on the side wall of the main body and the pressing part;

further comprises: the retaining walls are symmetrically arranged, the area between the two retaining walls is used for the translation part to pass through and slide, and the free ends of the two retaining walls and the elastic hooking part form limit fit to limit the movable part to be separated from the retaining walls; the upper edge of the retaining wall is also provided with a blocking part which is used for limiting the movable part to be separated from the retaining wall along the axial direction of the nozzle.

Further, the elastic hooking part comprises a deformation part and a hook, wherein the deformation part is formed by extending the free end of the translation part towards the movement direction, and the hook is formed at the end part of the deformation part; the hook extends outwards along the direction perpendicular to the movement direction of the translation part so as to be hooked against the free end of the retaining wall.

Further, the inner side surface of the pressing part forms a first guide column for mounting the elastic piece; a second guide column is arranged at the position, which is propped against the elastic piece, on the main body; the elastic piece acts on the first guide post and the second guide post respectively so as to limit the distortion of the elastic piece.

Further, the outer side surface of the pressing portion forms a pressing protrusion, and the center position of the pressing protrusion is offset from the center position of the first guide post.

Further, the pressing part is also provided with a lateral groove, the main body is provided with a limiting block which is matched with the lateral groove, and the limiting block is arranged on a movement track of the pressing part relative to the main body; the lateral groove of the pressing part is correspondingly provided with a limiting block, so that the pressing part translates relative to the main body.

Further, the elastic piece is a spring or a soft colloid.

Further, a clamping part is formed on the inner wall of the through hole and is used for being in limit fit with a clamping groove on the nozzle; the clamping part is also provided with an inclined surface, and the side wall of the through hole extends inwards and downwards towards the center of the hole.

Further, the device also comprises a cover body which is detachably covered on the main body, and a hole site for the nozzle and the movable piece to penetrate is arranged on the cover body.

Further, the cover body is made of transparent material

From the above description of the present utility model, compared with the prior art, the present utility model has the following advantages:

the utility model provides a button mechanism for replacing a nozzle, which has the advantages of simple structure, simple and convenient manufacture, easy realization and low cost, and solves the problems that the existing pressing piece is difficult to detach and install, the pressing piece (movable piece) is easy to trip and the movement is not smooth; the novel pressing mechanism realizes the limit and disassembly of the nozzle through the movable piece arranged on the main body upper surface, and also provides convenience for disassembly, maintenance and replacement of the movable piece; according to the movable part, the translational part and the pressing part are vertically arranged, so that the occupation of the movable part to space is greatly reduced on the premise that the movable part is arranged outside, the translational part stably realizes linear displacement under the limit of the retaining wall, the translational part is blocked by the blocking part and is not easy to generate a trip phenomenon, more importantly, the translational part is not easy to deflect and block, and even if the translational part is not limited by other cover bodies, the translational part can still move stably and smoothly; in addition, this is novel with the free end cooperation of hooking portion and barricade, restriction motion scope, it becomes simple structurally, do not need to set up independent with hook portion complex part, realize the light dismantlement of moving part moreover, only need inwards extrude two elasticity hooking portions, can realize removing the restriction for moving part can break away from the restriction of two barricades and take out, re-clean or again appear and get in after adjusting under the card condition again, realize convenient to detach, equipment and smooth and easy, the effect of pleasing to the eye degree is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the description of the embodiments below are briefly introduced, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a pressing mechanism according to the present utility model;

FIG. 2 is a schematic view of a three-dimensional exploded structure of the pressing mechanism according to the present utility model;

FIG. 3 is a schematic diagram showing a three-dimensional exploded structure of the pressing mechanism according to the present utility model;

fig. 4 is a schematic diagram of a three-dimensional exploded structure of the pressing mechanism according to the present utility model;

fig. 5 is a cross-sectional view of the pressing mechanism of the present utility model;

fig. 6 is a sectional view of the dental washer provided with the pressing mechanism according to the present utility model.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is to be understood that the described embodiments are preferred embodiments of the utility model and should not be taken as excluding other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without creative efforts, are within the protection scope of the present utility model.

In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, references to orientation or positional relationship such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. are based on the orientation and positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of the utility model.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, the term "fixedly connected" or "fixedly connected" should be construed broadly, i.e. any connection between them without a displacement relationship or a relative rotation relationship, that is to say includes non-detachably fixedly connected, integrally connected and fixedly connected by other means or elements.

In the claims, specification and drawings of the present utility model, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.

Referring to fig. 1 to 4, a button mechanism for replacing a nozzle according to the present utility model is installed at a main body 1 of a dental appliance, and is used for replacing and assembling a nozzle 2 to the main body 1; the nozzle 2 is connected with the main body 1 through the button structure to realize different water spraying functions, and is taken down and stored after the use, so as to achieve the effect of saving space;

the button mechanism includes:

a movable member 3 detachably mounted on the upper surface of the main body 1; the movable part 3 comprises a translation part 31 and a pressing part 32 which are arranged vertically, and the translation part and the pressing part are connected into a whole through a bridging part 33;

the translation part 31 is provided with a through hole 311 for the nozzle 2 to pass through and a plurality of elastic hooking parts 312;

the plurality of elastic hooking parts 312 extend outwards along the free end of the translation part 31; it should be noted that the elastic hooking portion 312 of the present utility model includes a deformation portion 312A and a hook 312B, the deformation portion 312A is formed by extending a free end of the translation portion 31 in a moving direction, and the hook 312B is formed at an end of the deformation portion 312A; the hook 312B extends outwards along a direction perpendicular to the movement direction of the translation part 31 so as to be hooked against the free end of the retaining wall 11;

an elastic member 4 having both ends acting on the side wall of the main body 1 and the pressing portion 32, respectively; when needing to be described, the elastic piece 4 is a rigid spring or a soft colloid;

a cover body 5 detachably covering the main body 1, wherein the cover body 5 is provided with a hole site for the nozzle 2 and the movable part 3 to penetrate;

further comprises: a set of symmetrically arranged retaining walls 11 formed on the upper surface of the main body 1, wherein a region (i.e. a translation space) between the two retaining walls 11 is used for the translation part 31 to pass through and slide, and the free ends of the two retaining walls 11 and the elastic hooking part 312 form limit fit so as to limit the movable part 3 from being separated from the retaining walls 11; the upper edge of the retaining wall 11 is further formed with a stopper 111 for restricting the movable member 3 from axially separating from the retaining wall 11 along the nozzle 2.

More specifically, the inner side surface of the pressing portion 32 forms a first guide post 321 to which the elastic member 4 is attached; a second guide column 12 is arranged at the position of the main body 1, against which the elastic piece 4 abuts; wherein, the elastic element 4 acts on the first guide post 321 and the second guide post 12 respectively to limit the distortion of the elastic element 4; guide posts are arranged on two sides of the elastic piece 4, so that the elastic piece 4 has certain guide when in compression or extension, is not easy to distort, reduces deformation resistance while being stable in deformation, and is smoother in pressing;

more specifically, the outer side of the pressing portion 32 forms the pressing protrusion 322, the center position of the pressing protrusion 322 is offset relative to the center position of the first guide post 321, by this offset arrangement, the displacement is smoother and smoother during pressing, the position of the novel translational portion 31 is offset from the center line of the elastic member 4, if the position of the pressing force is applied corresponds to the center line of the spring, the translational portion 31 is easy to tilt during pushing, the translational portion 31 is easy to tilt due to the combination of the elastic hooking portion 312 at the front end, the displacement is smooth, and the pressing protrusion 322 is eccentric (after a certain position is offset), so that the comfort and experience of pressing are better and smoother;

more specifically, the pressing portion 32 is further provided with a lateral groove 323, the main body 1 is formed with a limiting block 13 adapted to the lateral groove 323, and the limiting block 13 is disposed on a movement track of the pressing portion 32 relative to the main body 1; the lateral groove 323 of the pressing part 32 corresponds to the limit block 13, and limits the translation of the pressing part 32 relative to the main body 1, and the pressing part 32 has a certain guiding function due to the limitation of the lateral groove 323 and the limit block 13, so that the displacement of the whole movable part 3 is stable and is not easy to deflect and clip;

1-6, the button mechanism for replacing a nozzle 2 of the present utility model mainly comprises the following components: the device comprises a main body 1, a nozzle 2, a movable piece 3, a translation part 31, a pressing part 32, a through hole 311, a plurality of elastic hooking parts 312, a deformation part 312A, a hook 312B, an elastic piece 4, a retaining wall 11, a blocking part 111, a first guide post 321, a second guide post 12, a pressing protrusion 322, a lateral groove 323 and a limiting block 13;

during actual assembly and replacement:

(1) Preparing a main body 1, wherein the main body 1 is formed by injection molding, a containing part 14 and a mounting hole 15 are formed on the main body, and a retaining wall 11, a stud 16 and the like are formed on the upper surface; the containing part is used for assembling a water inlet pump and connecting a water passing piece 6 with the water inlet end of the nozzle 2, and the mounting hole 15 is used for the nozzle 2 to pass through; the retaining walls 11 are arranged in pairs, and a displacement space H is formed between the retaining walls, so that the movable piece 3 can move in the retaining walls; in addition, the upper edge of the retaining wall 11 forms a resisting part, and the resisting part extends from the retaining wall 11 towards the other retaining wall 11, so that the movable part 3 can be effectively prevented from falling out of the displacement space H in the translation process;

(2) Preparing a movable piece 3:

the movable member 3 is injection molded once by a mold to form a translation part 31, a transition part and a pressing part 32;

when it is to be noted, a through hole 311 is formed on the translation portion 31 and a pair of elastic hooking portions 312 extend from the free end of the translation portion 31, the deformation portion 312A of the elastic hooking portion 312 is connected to the translation portion 31, and the hooks 312B extend outwards along a direction perpendicular to the movement direction of the translation portion 31; in addition, a clamping portion 311A extends inward from the wall of the through hole 311, and an inclined surface 311B is formed on the clamping portion 311A;

the transition part 33 is arc-shaped and is used for connecting the translation part 31 and the pressing part 32;

the pressing part 32 is arranged perpendicular to the translation part 31, and is provided with a pressing protrusion 322, a first guide post 321 and a lateral groove 323; wherein the first guiding post 321 is formed on the inner side surface (i.e. the surface opposite to the main body 1) of the pressing portion 32, and is used for matching with the elastic member 4; a pressing protrusion 322 is formed on the outer side surface of the pressing portion 32, and the pressing protrusion 322 is disposed at a certain distance away from the center line of the elastic member 4; in addition, lateral grooves 323 are formed on the pressing part 32 and are respectively formed on two sides perpendicular to the movement direction of the pressing part, and are used for being matched with the limiting blocks 13 formed on the main body 1 so as to achieve the effect of guiding smooth displacement;

(3) One end of the elastic piece 4 is sleeved on the second guide post 12 on the main body 1, and the movable piece 3 is correspondingly arranged in the main body 1; in the process, the elastic hooking portion 312 first enters the displacement space H, and after the translation portion 31 continuously moves to enter the displacement space H, the other end of the elastic member 4 and the first guide post 321 on the inner side surface of the pressing portion 32 are assembled, and meanwhile, the lateral groove 323 on the pressing portion 32 corresponds to the stopper 13 of the upper body 1; continuing to push the movable piece 3 until the elastic hook piece is separated from the limit of the retaining wall 11 and is positioned at the free end of the retaining wall 11, rebounding after the constraint of the retaining wall 11 is lost, and enabling the hook 312B to be positioned at the free end of the retaining wall 11 to form limit fit, so that the movable piece 3 is prevented from being separated from the axial direction of the elastic piece 4;

(4) The injection molded transparent cover 5 is covered on the main body 1 by a screw or a snap fit to complete the assembly of the whole button mechanism.

When the nozzle 2 is assembled or replaced,

the pressing protrusion 322 applied to the pressing portion 32 further pushes the pressing portion to translate toward the main body 1, and at this time, the translation portion 31 connected with the pressing portion moves along with the pressing portion, and moves in the translation space between the two retaining walls 11, so that the elastic member 4 is compressed along with the translation space; after the translation part 31 moves, the upper through hole 311 corresponds to the upper hole position of the cover body 5 and the mounting hole of the main body 1 and is close to coaxial; then, the nozzle 2 is correspondingly inserted into the through hole 311 to the inside of the main body 1, and the clamping groove on the nozzle 2 corresponds to the clamping part 311A on the translation part 31; then the pressing part 32 is released, and the translation part 31 is reversely displaced under the action of the elastic piece 4, so that the upper clamping part 311A is driven to be clamped in the clamping groove 21 of the nozzle 2, and the assembly is realized; the clamping and the replacement of the nozzle 2 are easily realized by the process during the replacement;

when the movable member 3 needs to be disassembled, the two fingers are only required to press the elastic hooking portion 312 relatively inwards so as to separate from the limit of the free end of the retaining wall 11, and the movable member 3 can be easily removed for cleaning or adjustment.

The utility model provides a button mechanism for replacing a nozzle, which has the advantages of simple structure, simple and convenient manufacture, easy realization and low cost, and solves the problems that the existing pressing piece is difficult to detach and install, the pressing piece (movable piece) is easy to trip and the movement is not smooth; the novel pressing mechanism realizes the limit and disassembly of the nozzle through the movable piece arranged on the main body upper surface, and also provides convenience for disassembly, maintenance and replacement of the movable piece; according to the movable part, the translational part and the pressing part are vertically arranged, so that the occupation of the movable part to space is greatly reduced on the premise that the movable part is arranged outside, the translational part stably realizes linear displacement under the limit of the retaining wall, the translational part is blocked by the blocking part and is not easy to generate a trip phenomenon, more importantly, the translational part is not easy to deflect and block, and even if the translational part is not limited by other cover bodies, the translational part can still move stably and smoothly; in addition, this is novel with the free end cooperation of hooking portion and barricade, restriction motion scope, it becomes simple structurally, do not need to set up independent with hook portion complex part, realize the light dismantlement of moving part moreover, only need inwards extrude two elasticity hooking portions, can realize removing the restriction for moving part can break away from the restriction of two barricades and take out, re-clean or again appear and get in after adjusting under the card condition again, realize convenient to detach, equipment and smooth and easy, the effect of pleasing to the eye degree is good.

The foregoing description of the embodiments and description is presented to illustrate the scope of the utility model, but is not to be construed as limiting the scope of the utility model.

Claims (9)

1. A button mechanism for replacing the nozzle, which is installed to the main body of the dental washer, and is used for replacing and assembling the nozzle to the main body; the method is characterized in that: the button mechanism includes:

a movable member detachably mounted on the upper surface of the main body; the movable piece comprises a translation part and a pressing part which are vertically arranged, and the translation part and the pressing part are connected into a whole through a bridging part; the translation part is provided with a through hole for the nozzle to pass through and a plurality of elastic hooking parts; the plurality of elastic hooking parts extend outwards along the free ends of the translation parts;

the two ends of the elastic piece respectively act on the side wall of the main body and the pressing part;

further comprises: the retaining walls are symmetrically arranged, the area between the two retaining walls is used for the translation part to pass through and slide, and the free ends of the two retaining walls and the elastic hooking part form limit fit to limit the movable part to be separated from the retaining walls; the upper edge of the retaining wall is also provided with a blocking part which is used for limiting the movable part to be separated from the retaining wall along the axial direction of the nozzle.

2. The button mechanism for changing a nozzle as set forth in claim 1, wherein the elastic hooking portion comprises a deformation portion and a hook, the deformation portion is formed by extending a free end of the translation portion toward a moving direction, and the hook is formed at an end portion of the deformation portion; the hook extends outwards along the direction perpendicular to the movement direction of the translation part so as to be hooked against the free end of the retaining wall.

3. A button mechanism for changing nozzles as defined in claim 1, wherein: the inner side surface of the pressing part forms a first guide column for the elastic piece to be installed; a second guide column is arranged at the position, which is propped against the elastic piece, on the main body; the elastic piece acts on the first guide post and the second guide post respectively so as to limit the distortion of the elastic piece.

4. A button mechanism for changing a nozzle as defined in claim 3, wherein: the outer side surface of the pressing part forms a pressing protrusion, and the central position of the pressing protrusion is offset relative to the central position of the first guide post.

5. A push button mechanism for changing a nozzle as claimed in claim 3 or 4, wherein: the pressing part is also provided with a lateral groove, a limiting block matched with the lateral groove is formed on the main body, and the limiting block is arranged on a movement track of the pressing part relative to the main body; the lateral groove of the pressing part is correspondingly provided with a limiting block, so that the pressing part translates relative to the main body.

6. A push button mechanism for changing a nozzle as claimed in claim 3 or 4, wherein: the elastic piece is a spring or a soft colloid.

7. A button mechanism for changing nozzles as defined in claim 1, wherein: a clamping part is formed on the inner wall of the through hole and is used for being in limit fit with a clamping groove on the nozzle; the clamping part is also provided with an inclined surface, and the side wall of the through hole extends inwards and downwards towards the center of the hole.

8. A button mechanism for changing nozzles as defined in claim 1, wherein: the device also comprises a cover body which is detachably covered on the main body, and a hole site for the nozzle and the movable piece to pass through is arranged on the cover body.

9. A button mechanism for changing nozzles as defined in claim 8, wherein: the cover body is made of transparent materials.

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