CN212308089U

CN212308089U - Oral cavity cleaning appliance handle and oral cavity cleaning appliance

Info

Publication number: CN212308089U
Application number: CN202020431038.5U
Authority: CN
Inventors: 李冬保
Original assignee: Shenzhen Ruishengte Electronic Technology Co ltd
Current assignee: Shenzhen Ruishengte Electronic Technology Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2021-01-08
Anticipated expiration: 2030-03-27

Abstract

The utility model relates to a handle of an oral cavity cleaning device, which comprises a shell and a push button component; the push button component comprises a push button, a pulling rod and an elastic piece; the shell is provided with a sliding seat, the push button is arranged on the shell or the sliding seat and can move relative to the sliding seat, and the inner wall of the push button is provided with a plurality of limiting convex strips or limiting grooves; the sliding seat is provided with a mounting groove, the elastic piece is mounted in the mounting groove, the pulling rod is arranged between the push button and the elastic piece, the elastic piece supports the tail end of the pulling rod, and the head end of the pulling rod can be arranged between two adjacent limit raised lines or in a limit groove in a sliding mode. The water pressure adjusting device has the advantages of being high in water pressure adjusting accuracy, strong in perceptibility of adjusting operation, good in user experience, simple in process, convenient to use and good in sealing effect.

Description

Oral cavity cleaning appliance handle and oral cavity cleaning appliance

Technical Field

The utility model belongs to the technical field of oral care utensil, a oral cleaning utensil handle is related to.

Background

The tooth flushing device is a household oral cavity cleaning device, and is mainly used for removing dental plaque and food remained below a gum line by using flowing pulse water so as to improve oral health.

A bench-top dental irrigator generally comprises a base including a power source, a control assembly, a motor, a pump, and a handle including a water tube for transporting fluid from the base into the handle and a nozzle for spraying water into the mouth of a user. The water tank can be fixed in the base top, and the end of intaking of water pump links to each other with the water tank, and the play water end and the water piping connection of water pump, the water pump is connected to the motor and by motor control, and when the ware during operation of washing one's teeth in a mouth, motor control water pump carries the fluid to the nozzle from the water tank. The control assembly may be in communication with the motor and may provide one or more control signals to the motor to change one or more characteristics of the motor, such as speed, power, or torque. Because the motor is connected to the water pump, the output characteristics of the water pump may change accordingly as the control assembly changes the speed or other characteristics of the motor in the different modes.

The water pressure of the existing tooth flushing device is generally controlled by a control component on a base, and the water pressure is adjusted by rotating a knob switch connected with a control panel. When the table-type tooth flushing device is used, a user holds the handle to clean the oral cavity, the handle only has the function of opening or interrupting water flow to the nozzle and does not have the function of adjusting the water pressure, and the water pressure is particularly inconvenient to adjust when the user uses the table-type tooth flushing device.

After the water pressure adjusting function of the handle of some existing tooth flushing devices is added, the water pressure adjustment needs to be achieved through a button or a push button on the handle, and the existing handle button or push button structure is not suitable for use. Therefore, a handle push button with better perceptibility, higher adjustment accuracy and better user experience is needed.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides an oral cavity cleaning device handle realizes the break-make of handle rivers and the regulatory function of rivers size through pushing away the button, and rivers size control accuracy is high, and the perceptibility of operation is stronger, and user experience is better, simple process, and convenient to use and sealed effectual.

The utility model discloses a realize through following technical scheme.

The technical proposal of the utility model is that a handle of an oral cavity cleaning appliance, which comprises a shell and a push button component;

the push button component comprises a push button, a sliding seat, a pulling rod and an elastic piece;

the sliding seat is connected to the shell, the push button is arranged on the shell or the sliding seat and can move relative to the sliding seat, and a plurality of limiting convex strips or limiting grooves are arranged on the inner wall of the push button;

the sliding seat is provided with a mounting groove, the elastic piece is mounted in the mounting groove, the pulling rod is arranged between the push button and the elastic piece, the elastic piece supports the tail end of the pulling rod, and the head end of the pulling rod can be arranged between two adjacent limit raised lines or in a limit groove in a sliding mode.

In an example of the technical solution, the outer wall of the pulling rod is provided with a limiting flange, the head end of the pulling rod is a spherical surface, the elastic member is a spring, the elastic member is sleeved on the pulling rod, and one end of the spring abuts against the limiting flange.

In one example of the technical scheme, the upper end and the lower end of the sliding seat are connected with the shell, gaps are formed between the left end and the right end of the sliding seat and the shell, limiting blocks are arranged on two sides of the inner wall of the push button, a buckling part is arranged on each limiting block, each limiting block is arranged in each gap, and each buckling part is reversely buckled on the inner wall of the shell; a vertical groove is formed between the limiting blocks on the two sides of the inner wall of the push button, and the width of the vertical groove is matched with that of the sliding seat.

In an example of this technical scheme, still including the water pressure regulating valve subassembly that can adjust the rivers size through the handle, the stopper that pushes away button inner wall both sides is formed with the fork groove that is used for the dead lever of holding water pressure regulating valve subassembly, when pushing away the button and sliding on the sliding seat, drives water pressure regulating valve subassembly's driving lever and rotates the break-make that realizes rivers and the regulation of rivers size.

In one example of this solution, the water pressure regulating valve assembly includes an inlet end member, a water pressure regulating member, a sealing member, and an outlet end member; the water inlet end part and the water outlet end part are connected by a sealing element;

the end part of intaking is equipped with the installation blind hole, and the sealed cooperation of water pressure regulating part is installed in the installation blind hole of end part of intaking, and the water pressure regulating part includes water pressure regulating part main part and dead lever, dead lever and water pressure regulating part main part fixed connection, and water pressure regulating part main part is equipped with the case hole, and dead lever and water pressure regulating part main part rotate under pushing away the button drive, adjust valve core hole position, realize the break-make of rivers and the multistage regulation and control of rivers size.

In one example of the technical scheme, the water inlet end part is provided with a mounting groove, the water outlet end part is provided with a mounting lug, the mounting groove is matched with the mounting lug to connect the water inlet end part and the water outlet end part, and the sealing element is arranged between the mounting groove and the mounting lug;

the inner peripheral surface of the sealing element is abutted against the mounting lug on the water outlet end part, the mating surfaces of the sealing element and the water outlet end part are in a step shape, the outer peripheral surface of the sealing element is abutted against the mounting groove on the water inlet end part, and the mating surfaces of the sealing element and the water inlet end part are in a step shape; the bottom end of the sealing element is in interference fit with the water pressure adjusting element.

In one example of the technical scheme, the sealing element comprises a cylindrical sealing element body, the bottom end of the sealing element body protrudes downwards to form a circular boss used for sealing the water pressure regulating element, the circular boss is coaxially arranged with the sealing element body, and the cross section area of the circular boss is smaller than that of the sealing element body.

In an example of the technical solution, the mounting lug of the water outlet end part includes a first boss, a second boss and a third boss which are sequentially connected from the lower end to the upper end, the inner end face caliber of the first boss is smaller than the inner end face caliber of the second boss, the inner end face caliber of the second boss is smaller than the inner end face caliber of the third boss, the top end of the sealing element body abuts against the bottom end of the third boss, the inner wall of the sealing element body abuts against the outer wall of the second boss, and the inner wall of the circular boss abuts against the outer wall of the first boss.

In one example of the technical scheme, the water inlet end part is provided with a connecting column, the water outlet end part is provided with a matching part, and the connecting column and the matching part are locked and fixed through screws so that the water inlet end part is connected with the water outlet end part.

Another technical solution of the present invention is to provide an oral cleaning device, comprising a handle of the oral cleaning device as in the above technical solution.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an overall structural view of a table type tooth irrigator.

Fig. 2 is a structural view of the handle of the tooth irrigator in the embodiment.

Figure 3 is an exploded view of the handle of the dental irrigator in an embodiment.

Figure 4 is an exploded view of the handle of the dental irrigator in an embodiment.

Fig. 5 is a structural view of the water inlet end part in the embodiment.

Fig. 6 is a structural view of a water inlet end piece in an embodiment.

Fig. 7 is a structural view of the water outlet end part in the embodiment.

Fig. 8 is a cross-sectional view of the outlet end piece in an embodiment.

Fig. 9 is a structural view of the water outlet end part in the embodiment.

Fig. 10 is a structural view of a water pressure regulating member in the embodiment.

Fig. 11 is a structural view of a water pressure regulating member in the embodiment.

Fig. 12 is a structural view of a water pressure regulating member in the embodiment.

Fig. 13 is a sectional view of the water pressure regulating valve assembly in the closed position in the embodiment.

FIG. 14 is a partial plan view of the hydraulic regulator valve assembly of the embodiment in the minimum gear.

FIG. 15 is a sectional view of the hydraulic regulator valve assembly of the embodiment in the maximum gear.

Fig. 16 is a view showing a rotation angle of the water pressure adjusting member in the embodiment.

Fig. 17 is a cross-sectional view of the seal in an example.

Fig. 18 is a structural view of a seal member in the embodiment.

Figure 19 is a cross-sectional view of the handle of the dental irrigator in an embodiment.

Fig. 20 is an exploded view of the push button assembly in an embodiment.

Fig. 21 is a structural view of the front cover in the embodiment.

Fig. 22 is an exploded view of the nozzle mounting assembly of the example embodiment.

Fig. 23 is a structural view of a nozzle lock switch in the embodiment.

Figure 24 is a partial view of the section of the handle of the dental irrigator in an embodiment.

Fig. 25 is a partially enlarged view of fig. 24.

Fig. 26 is a structural view of a nozzle spring in the embodiment.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The present embodiment is a dental irrigator handle comprising a housing, a water flow inlet into the housing, a water flow outlet from the housing, a water pressure regulating valve positioned between the water flow inlet and the water flow outlet, and a valve drive assembly capable of adjusting the amount of water flow through the handle, the water flow being able to flow into the housing through a hose and exit the housing through an attached nozzle.

As shown in fig. 1 and 2, in particular, the handle of the tooth flusher comprises a shell, a water pressure regulating valve component, a push button component, a nozzle mounting component and a hose, wherein one end of the hose is connected with the water pressure regulating valve component in the handle, and the other end of the hose can be connected with a water pump in a base of the tooth flusher through a handle bracket 20 or directly connected with the water pump. As an example, the other end of the hose in this embodiment is connected to a water pump in the base via a handle bracket 20 to facilitate removal of the hose from the base. As an example, the dental irrigator handle of the present embodiment is used on a portable detachable dental irrigator.

As shown in fig. 3 to 6, the hydraulic regulating valve assembly can control the water flow and the on-off of the handle of the tooth flusher. The water pressure regulating valve assembly includes a water inlet end member 16, a water pressure regulating member 19, a sealing member 15, and a water outlet end member 17. The hose 14 is secured to the inlet end member 16 by a snap ring 21. The water inlet end part 16 is provided with a bayonet communicated with the hose 14, the bayonet comprises a plurality of mutually overlapped clamping grooves, the clamping grooves are of a circular truncated cone-shaped structure, the caliber of the inner end face of each clamping groove is larger than that of the outer end face of each clamping groove, and the axes of the clamping grooves are positioned on the same straight line. The bayonet comprises a first clamping groove 164 and a second clamping groove 165 which are sequentially connected from the inner end to the outer end, and the calibers of the first clamping groove 164 and the second clamping groove 165 are different. The inner end face diameter of the first card slot 164 is larger than the inner end face diameter of the second card slot. In the process of connecting the water inlet end part 16 of the hose 14, the hose 14 sequentially passes through the plurality of clamping grooves, and the hose is difficult to fall off due to the fact that the hose is easily guided by the wall surfaces of the clamping grooves and is difficult to fall off when the hose is inserted and is limited to the second clamping groove with the smaller caliber of the inner end surface. The inverted clamping groove structure of the water inlet end part 16 can ensure that the connection between the hose 14 and the water inlet end part 16 is more stable, the handle is prevented from leaking due to falling off, and the clamping ring 21 is used for fixing, so that the connection structure between the hose 14 and the water inlet end part 16 is more stable.

The water inlet end piece 16 has a blind mounting hole 161, the water pressure adjusting piece 19 is mounted in the blind mounting hole 161 of the water inlet end piece 16 through the interference fit of the first sealing ring 18 and the water inlet end piece 16, and a second sealing ring 6 is further arranged between the water pressure adjusting piece 19 and the water inlet end piece 16 to prevent water flow from leaving a gap between the water pressure adjusting piece 19 and the water inlet end piece 16.

As shown in fig. 10 to 12, the water pressure regulating member 19 includes a water pressure regulating member main body 191 disposed in the mounting blind hole 161, and a shift lever 192 fixedly connected to the water pressure regulating member main body 191, the water pressure regulating member main body 191 is provided with a valve core hole 193 and at least one annular groove 194, the annular groove 194 is provided therein with a second sealing ring 6 in an O-shape for sealing, and the annular groove 194 is also provided therein with a first sealing ring 18 in interference fit with the water inlet end member 16. The push button 1 is provided with a limiting block 11 in a protruding manner, and a fork groove 102 for accommodating a shift lever 192 of the water pressure regulating valve assembly is formed in the middle of the limiting block 11. The position of the valve core hole 193 can be adjusted by the matching of the push button 1 and the shift rod 192, so that the multi-stage regulation and control of the water flow of the water pressure regulating valve assembly can be realized.

The inlet end piece 16 is provided with a mounting groove 162 and the outlet end piece 17 is provided with a mounting projection 171. the mounting groove 162 cooperates with the mounting projection 171 to connect the inlet end piece 16 and the outlet end piece 17. A sealing member 15 is provided between the mounting groove 162 and the mounting projection 171.

As shown in fig. 7 to 9, the inner peripheral surface of the sealing member 15 abuts against the mounting projection 171 of the outlet end member, and the mating surfaces of the two are stepped to prevent the sealing member 15 from deforming inward; the peripheral surface of the sealing element 15 is abutted against the mounting groove 162 on the water inlet end part, and the matching surfaces of the sealing element and the water inlet end part are in a step shape, so that the outward deformation of the sealing element 15 can be prevented; the bottom end surface of the sealing member 15 is interference-fitted with the water pressure regulating member 19. The water pressure regulating member main body 191 is cylindrical, the outer peripheral surface thereof is convex in a cambered surface, the middle part of the bottom end surface of the mounting lug 171 is concave, and the bottom end of the mounting lug 171 is matched with the outer peripheral surface of the water pressure regulating member main body 191 in shape but is not contacted with the water pressure regulating member main body 191. The sealing element 15 deforms at the lower extrusion bottom end of the water outlet end part 17 and the water pressure adjusting piece 19, is matched with the shape of the outer peripheral surface of the main body 191 of the water pressure adjusting piece, can achieve a better sealing effect with the water pressure adjusting piece 19, and still keeps a sealing effect when the water pressure adjusting piece 19 rotates. The sealing member 15 can simultaneously seal the water inlet end member 16, the water outlet end member 17 and the water pressure regulating member 19. The edge of the valve core hole 193 of the water pressure regulating part 19 is designed to be rounded, so that the sealing part 15 is prevented from being damaged.

In order to ensure that the water inlet end part 16 and the water outlet end part 17 are matched more stably and prevent water leakage or water seepage or the sealing piece from being scratched by the water pressure regulating piece 19, the water inlet end part 16 is provided with a connecting column 163, the water outlet end part 17 is provided with a matching part 172, and the connecting column 163 and the matching part 172 are locked and fixed through a screw 8, so that the structure of the water pressure regulating valve assembly is stable.

As shown in fig. 13 to 16, the water pressure regulating valve assembly and the push button can be matched to control the on/off and the water flow of the handle, the water inlet end part 16 is provided with a first water flow channel which is communicated with the water flow channel in the hose, the water outlet end part 17 is provided with a second water flow channel, and the communication between the first water flow channel and the second water flow channel is controlled to be interrupted by regulating the position of the valve core hole 193. The hydraulic pressure regulating valve component can be provided with 6 gears, 6 different water flow size controls are realized, in the process, the hydraulic pressure regulating part 19 can rotate for 20-110 degrees, and as a preferred embodiment, the hydraulic pressure regulating part 19 rotates for 66 degrees. The handle hydraulic adjustment is mechanically controlled without electrical components. The handle water pressure adjusting device is matched with the electric water pressure adjusting device in the base, so that the tooth flushing device has more gear selections, and the requirements of consumers are met. The water pressure adjusting device in the handle is more convenient for consumers to adjust the water pressure in the using process, and the required gears are selected according to different cleaning positions.

The casing includes protecgulum 4 and hou gai 13, is equipped with the card post on both of them of protecgulum 4 and hou gai 13, is equipped with the draw-in groove on another, and it is sealed to accomplish the casing through protecgulum 4 and the mutual block of hou gai 13, and the card post and the draw-in groove of mutually supporting can be a plurality ofly, has strengthened the dynamics of block, avoids using the screw, convenient to detach.

The inner wall of the shell is provided with an anti-skidding clamping plate corresponding to the water pressure regulating valve component, the push button component and the nozzle mounting component, so that internal components of the handle can be fixed in the shell, the stability of the handle is improved, and the service life of the handle is prolonged.

As shown in fig. 19 to 21, the push button assembly includes a push button 1, a toggle rod 2 and an elastic member 3, a sliding seat 42 of the push button is provided on the front cover 4, the upper end and the lower end of the sliding seat 42 are connected with the housing, a gap 43 is provided between the left end and the right end of the sliding seat 42 and the front cover 4, two limit blocks 11 are respectively provided on the left and right sides of the inner wall of the push button 1, and the limit blocks 11 on the left and right sides can respectively enter the gap 43 between the left end and the right end of the sliding seat and the front cover 4. The limiting blocks 11 are provided with buckling parts 113, when the limiting blocks 11 on the left and right sides are buckled into the inner cavity formed by the front cover 4 and the rear cover 13 by force, the buckling parts 113 are buckled on the inner wall of the front cover 4 in an inverted mode, and therefore the push button 1 is installed on the front cover. A vertical groove 116 is formed between the limiting blocks 11 at the left and right sides, and the width of the vertical groove 116 is matched with the width of the sliding seat 42, so that the push button 1 can slide up and down relative to the sliding seat 42 without shaking left and right.

The sliding seat 42 has a mounting groove 41 thereon, and the elastic member 3 is mounted in the mounting groove 41. The middle of the inner wall of the push button 1 is provided with a plurality of limit convex strips 101. A poke rod 2 is slidably arranged between the limit convex strips 101 and the elastic piece 3, the elastic piece 3 keeps abutting against the poke rod 2, so that the head end of the poke rod 2 keeps being matched with the limit convex strips 101, namely the head end of the poke rod 2 is kept between two adjacent limit convex strips 101. The 6 gears of the hydraulic pressure regulating valve assembly can be realized by 7 limiting convex strips 101.

As an alternative, the limiting protrusion 101 may be replaced by a limiting groove, and the elastic member 3 is held against the poke rod 2, so that the head end of the poke rod 2 is held in the limiting groove. The 6 gears of the hydraulic pressure regulating valve component can be realized by 6 limiting grooves.

Because elastic component 3 keeps supporting poker rod 2, the head end of poker rod 2 keeps cooperating with spacing sand grip 101, makes spacing sand grip 101 form spacing locking effect to poker rod 2 to form spacing locking effect to push button 1, thereby avoid push button 1 because of the self vibration in the tooth ware course of working or receive the mistake of other articles to touch and bump and slide voluntarily, thereby avoid the water pressure gear of tooth ware to change voluntarily. In addition, in the process of pushing the button 1 to adjust the water pressure gear, the head end of the poke rod 2 sweeps the limit convex strips 101, and the arrangement of the limit convex strips 101 is concave-convex alternate, and the poke rod 2 is impacted in the concave position by the action of the elastic piece 3 at the position changed from convex to concave to make a crisp sound, so that the sliding perceptibility of the pushing button 1 is stronger, the adjusting accuracy is higher, and better user experience is brought.

The outer wall of the poke rod 2 is provided with a limit flange 201, the elastic piece 3 is a spring, the spring is sleeved outside the poke rod 2, and one end of the spring abuts against the limit flange 201. The head end of the poke rod 2 is a spherical surface, so that the scraping of the flower limiting convex strip 101 is avoided.

The limiting block 11 between the upper end and the lower end forms a fork groove 102 for accommodating the shift lever 192, and when the push button 1 slides up and down on the sliding seat 42, the shift lever 192 accommodated in the fork groove 102 is driven to move up and down, so that the water pressure regulating part main body 191 is driven to rotate in the installation blind hole 161, and at the moment, the position of the valve core hole 193 is changed, so that the communication between the first water flow channel and the second water flow channel is controlled to be interrupted, and the multi-stage regulation and control of the water flow size are realized.

As shown in fig. 17 to 18, the sealing member 15 includes a cylindrical sealing ring body 151, a circular boss 153 for sealing the water pressure regulating member 19 is protruded downward from a bottom end of the sealing ring body 151, the circular boss 153 is coaxially disposed with the sealing ring body 151, and a cross-sectional area of the circular boss 153 is smaller than that of the sealing ring body 151.

The water outlet end component 17 is provided with a mounting lug 171, the mounting lug 171 is a first boss 1711, a second boss 1712 and a third boss 1713 which are sequentially connected from the lower end to the upper end, the caliber of the inner end surface of the first boss 1711 is smaller than that of the inner end surface of the second boss 1712, and the caliber of the inner end surface of the second boss 1712 is smaller than that of the inner end surface of the third boss 1713. The inner peripheral surface of the sealing element 15 abuts against the water outlet end component mounting lug 171, wherein the top end of the sealing ring body 151 abuts against the bottom end of the third boss 1713, the inner wall of the sealing ring body 151 abuts against the outer wall of the second boss 1712, and the inner wall of the circular boss 153 abuts against the outer wall of the first boss 1711, so that the matching surface between the sealing element 15 and the water outlet end component 17 is increased, and the sealing element 15 is stepped, so that the inward deformation of the sealing element 15 can be prevented, and the sealing effect of the sealing element 15 on the water outlet end component 17 is ensured. The end face of the bottom of the first boss 1711 is arc-shaped, and the first boss 1711 is matched with the outer peripheral surface of the water pressure regulating part main body 191 in shape, and the first boss 1711 and the water pressure regulating part main body are matched but not contacted.

The outer peripheral surface of the sealing member 15 abuts against the mounting groove 162 of the water inlet end member, and the outer peripheral surface of the sealing ring main body 151 is provided with the annular protrusion 152, so that the sealing member 15 is prevented from being deformed outward, thereby ensuring the sealing effect of the sealing member 15 on the water inlet end member 16.

The bottom end of the sealing member 15 is interference fitted with the water pressure regulating member 19. The bottom end of the mounting lug 171 abuts against the water pressure regulating body 191 mounted in the mounting blind hole 161, the water pressure regulating body 191 is cylindrical, the outer peripheral surface of the water pressure regulating body is convex in an arc surface, the middle part of the bottom end of the mounting lug 171 is concave, and the bottom end of the mounting lug 171 is matched with the outer peripheral surface of the water pressure regulating body 191 in shape. The sealing element 15 deforms at the lower extrusion bottom end of the water outlet end part 17 and the water pressure adjusting piece 19, is matched with the shape of the outer peripheral surface of the main body 191 of the water pressure adjusting piece, can achieve a better sealing effect with the water pressure adjusting piece 19, and still keeps a sealing effect when the water pressure adjusting piece 19 rotates. The sealing member 15 can simultaneously seal the water inlet end member 16, the water outlet end member 17 and the water pressure regulating member 19. The spool hole 193 of the hydraulic pressure regulator 19 is edge-rounded to prevent damage to the seal 15, as shown in fig. 25.

As shown in fig. 19 and 22 to 26, the nozzle mounting assembly includes a nozzle locking device and a nozzle automatic-ejecting device, which are received in an inner cavity formed by the front cover 4 and the rear cover 13. The top of the shell is provided with a nozzle insertion hole for inserting the nozzle into the handle; the nozzle locking device is arranged in the handle shell and is positioned at the nozzle inserting hole and used for locking and fixing the inserted tooth flusher nozzle 22.

The nozzle locking device comprises a nozzle locking switch 12 and a rebound pressure spring 123, the nozzle locking switch 12 comprises a pressing head 121 and a buckle 122, one end of the rebound pressure spring 123 abuts against the nozzle locking switch, and the other end of the rebound pressure spring abuts against the inner wall of the shell. The outer wall of the rear cover 13 is provided with a switch hole, the inner wall of the rear cover 13 is provided with an anti-slip fixture block 131, and the nozzle locking switch 12 is installed between the anti-slip fixture block 131 and the top wall of the shell. The buckle 122 is fixedly arranged on the pressing head 121, and the pressing head 121 extends out of the handle shell from the switch hole; the resilience pressure spring 123 is elastically supported between the outer wall of the buckle 122 and the inner wall of the front cover 4, and is used for pushing the buckling part 1221 of the buckle to be embedded into the nozzle clamping groove.

The nozzle automatic ejecting device includes a handle head bracket 23 and a nozzle spring 9. The handle head support 23 is butted with the nozzle insertion hole, and a nozzle mounting notch 232 is arranged on the pipe wall of the handle head support 23 in a penetrating way. The side wall of the handle head support 23 is provided with a clamping groove 231, the outer wall of the water outlet end part 17 is provided with a buckle 174, and the handle head support 23 and the water outlet end part 17 are connected through the matching of the clamping groove 231 and the buckle 174. The nozzle 22 is inserted into the outlet end member 17 by positioning the handle head bracket 23 so that the water flow path between the outlet end member 17 and the nozzle 22 is in communication. In addition, the handle head bracket 23 secures the sealing ring 10 to the outlet end member 17 such that the sealing ring 10 seals the gap between the nozzle 22 and the outlet end member 17 after the nozzle 22 is inserted into the outlet end member 17.

The outlet end member 17 is provided with a nozzle mounting groove 175, and a spring fixing portion 173 is provided in the mounting groove 175. The nozzle spring 9 includes a fixing portion 91 and a spring-back portion 92, the fixing portion 91 is fixed to a spring fixing portion 173 of the outlet end member 17, and the spring-back portion 92 is abutted against the nozzle bottom portion to elastically support the lower end portion of the nozzle 22. The outlet end member 17 further comprises a side cover 5, and a sealing ring 26 is arranged between the side cover 5 and the outlet end member 17.

When carrying out the nozzle change, the user is after pressing nozzle locking device once, and nozzle spring 9 pops out the certain distance with the nozzle automatically, loosens nozzle locking device this moment, and nozzle 22's draw-in groove has upwards moved the certain distance, and nozzle locking device can not lock nozzle 22 again, and the user can easily take out the nozzle, need not to continuously press nozzle locking device at the change nozzle in-process. The nozzle locking device and the nozzle automatic ejection device are installed in a split type combination mode, so that later-period disassembly and maintenance can be facilitated, and the maintenance cost is reduced; the nozzle is inserted in the handle shell, the nozzle locking device and the nozzle automatic ejecting device, and has better nozzle constraint and fixation performance.

The handle of the tooth flushing device in the embodiment can realize the control of the on-off of the water flow and the size of the water flow of the handle, so that a consumer can adjust the water pressure more conveniently in the use process, and the required gears can be selected according to different cleaning parts. Push away the cooperation of button, spring, poker rod and handle protecgulum, make and push away the button and make the sound when carrying out the gear switching, perceptibility is strong, and the regulation degree of accuracy is higher, brings better user experience. And the limiting convex strip forms a limiting locking effect on the poking rod, so that the pushing button forms a limiting locking effect, the pushing button is prevented from sliding spontaneously due to self vibration in the working process of the tooth flushing device or mistaken touch of other objects, and the water pressure gear of the tooth flushing device is prevented from changing spontaneously. The water pressure adjusting sealing ring has good sealing effect.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement.

Claims

1. A handle of an oral cleaning appliance is characterized by comprising a shell and a push button component;

the push button component comprises a push button, a pulling rod and an elastic piece;

the shell is provided with a sliding seat, the push button is arranged on the shell and can move relative to the sliding seat, and the inner wall of the push button is provided with a plurality of limiting convex strips or limiting grooves;

2. The oral cleaning implement handle of claim 1,

the outer wall of the pulling rod is provided with a limiting flange, the elastic piece is a spring and is sleeved on the pulling rod, and one end of the spring abuts against the limiting flange.

3. The oral cleaning implement handle of claim 1,

the upper end and the lower end of the sliding seat are connected with the shell, gaps are formed between the left end and the right end of the sliding seat and the shell, the two sides of the inner wall of the push button are provided with limiting blocks, each limiting block is provided with a buckling part, and the limiting blocks are arranged in the gaps and the buckling parts are reversely buckled on the inner wall of the shell; a vertical groove is formed between the limiting blocks on the two sides of the inner wall of the push button, and the width of the vertical groove is matched with that of the sliding seat.

4. The oral cleaning implement handle of claim 3,

the water pressure regulating valve assembly is characterized by further comprising a water pressure regulating valve assembly capable of regulating the size of water flow passing through the handle, limiting blocks on two sides of the inner wall of the push button are provided with fork grooves used for containing pull rods of the water pressure regulating valve assembly, and when the push button slides up and down along the sliding seat, the pull rods of the water pressure regulating valve assembly are driven to rotate to realize on-off of the water flow and regulation of the size of the water flow.

5. The oral cleaning implement handle of claim 1 or 4,

the water pressure regulating valve assembly comprises a water inlet end part, a water pressure regulating part, a sealing part and a water outlet end part; the water inlet end part and the water outlet end part are connected by a sealing element;

6. The oral cleaning implement handle of claim 5,

the water inlet end part is provided with a mounting groove, the water outlet end part is provided with a mounting lug, the mounting groove is matched with the mounting lug to connect the water inlet end part and the water outlet end part, and the sealing element is arranged between the mounting groove and the mounting lug;

7. The oral cleaning implement handle of claim 6,

the sealing member includes columniform sealing member body, and the bottom of sealing member body is the circular boss that forms downwards protrusion and be used for sealed water pressure regulating part, and circular boss and the coaxial setting of sealing member body, the cross sectional area of circular boss is less than the cross sectional area of sealing member body.

8. The oral cleaning implement handle of claim 7,

the mounting lug of the water outlet end part comprises a first boss, a second boss and a third boss which are sequentially connected from the lower end to the upper end, the caliber of the inner end face of the first boss is smaller than that of the inner end face of the second boss, the caliber of the inner end face of the second boss is smaller than that of the inner end face of the third boss, the top end of the sealing element body is abutted against the bottom end of the third boss, the inner wall of the sealing element body is abutted against the outer wall of the second boss, and the inner wall of the circular boss is abutted against the outer wall of the first boss.

9. The oral cleaning implement handle of claim 5,

the water inlet end part is provided with a connecting column, the water outlet end part is provided with a matching part, and the connecting column and the matching part are locked and fixed by screws so that the water inlet end part is connected with the water outlet end part.

10. An oral cleaning implement comprising an oral cleaning implement handle according to any one of claims 1 to 9.