CN214698208U - Liquid conveying device and tooth flushing device - Google Patents

Abstract

The patent relates to a liquid conveying device and a tooth flushing device, wherein the liquid conveying device comprises a pump body, a bracket and a motor, the pump body is provided with a pump shell and a pump cavity, the pump shell is provided with a first connecting part, and a piston is arranged in the pump cavity; the motor is in power connection with the piston; the bracket is provided with a power cabin for mounting the motor; the support is provided with a second connecting part, and the second connecting part is detachably connected with the first connecting part. The utility model adopts the mode that the bracket is directly connected with the pump body, thereby not only increasing the sealing structure of the pump body, but also saving materials and space and being convenient for maintenance; through reasonable spare part overall arrangement for the structure is compacter, and the volume is littleer, and the equipment miniaturization of being convenient for.

Description

Liquid conveying device and tooth flushing device

Technical Field

This patent belongs to towards tooth ware technical field, particularly relates to a liquid conveyor and towards tooth ware.

Background

The tooth flusher is used as an oral cavity cleaning appliance, mainly cleans teeth, tooth gaps and other parts in a pulse water flow impact mode, and becomes a necessary sanitary product for many families.

Because the structural design of the tooth flushing device in the prior art is unreasonable, the pump body of the tooth flushing device is wrapped by the support, the sealing structure of the pump body cannot be made, the tooth flushing device is large in size, inconvenient to design and high in maintenance cost, and the existing tooth flushing device has the defects that the machine core is multiple in component parts, large in occupied space, large in size and inconvenient to carry.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the present invention aims to provide a liquid delivery device and a tooth rinsing device, which are used to solve one or more of the problems of poor sealing performance, large volume and high maintenance cost of the existing tooth rinsing device core.

The purpose of the utility model is realized like this:

in one aspect, a liquid delivery device is provided, comprising:

the pump comprises a pump body and a pump body, wherein the pump body is provided with a pump shell and a pump cavity, the pump shell is provided with a first connecting part, and a piston is arranged in the pump cavity;

a motor in power connection with the piston;

a bracket having a power compartment for mounting the motor;

the support is provided with a second connecting part, and the second connecting part is detachably connected with the first connecting part.

Further, the second connecting portion is connected with the first connecting portion by a bolt.

Further, the first connecting portion is arranged at the lower end of the pump shell, and the second connecting portion is arranged at the top end of the support.

Further, the first connecting part comprises a first connecting plate, the first connecting plate is arranged on the outer peripheral wall of the lower end of the pump shell and is formed by extending the lower end opening of the pump shell outwards in the radial direction; the second connecting portion comprises a second connecting plate, the second connecting plate is arranged at the top end of the support, a through hole is formed in the second connecting plate, and the second connecting plate is parallel to the first connecting plate.

Further, the motor is connected to the piston through a connecting rod.

Further, the piston comprises a soft rubber plug which is slidably mounted in the pump cavity.

Furthermore, the first end of the connecting rod is connected with an output shaft of the motor through an eccentric wheel, and the second end of the connecting rod is connected with the piston through a switching component.

Further, the support comprises a first frame and a second frame which are detachably connected, and the power cabin is formed after the first frame is connected with the second frame.

Further, the power compartment is separated from the pump chamber by a seal.

On the other hand, a tooth flushing device is further provided, and the tooth flushing device comprises the liquid conveying device in any technical scheme.

Further, the tooth flushing device comprises a direct injection type spray head and a spray type spray head which are detachably mounted.

Compared with the prior art, the utility model discloses can realize one of following beneficial effect at least:

a) the utility model provides a liquid conveying device, support and pump body lug connection, rather than utilizing the support to wrap up the pump body, this structural design not only can increase pump body seal structure, save material, space moreover, be convenient for the maintenance.

b) The utility model provides a liquid conveying device is through reasonable spare part overall arrangement for the structure is compacter, and the volume is littleer, and the tooth ware of being convenient for is miniaturized.

c) The utility model provides a tooth flushing device, which contains two flushing modes of direct injection and spray, and provides more choices for users.

d) The utility model provides a towards tooth ware under the condition that towards the whole volume of tooth ware and do not increase, makes the straight line with inside flexible pipe pipeline that draws water, is showing the quantity of bending that reduces the passageway that draws water for the water route bulk drag that draws water is little, and it is smooth and easy to walk water, reduces the loss of power consumption, prolongs the live time of full electricity.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present specification, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a schematic structural diagram of a preferred embodiment of the liquid conveying device of the present invention;

FIG. 2 is a side view of the fluid delivery device of the present invention;

FIG. 3 is a top view of the liquid delivery device of the present invention;

fig. 4 is a schematic structural view of the pump casing of the present invention;

fig. 5(a) is an exploded view of the first liquid conveying device of the present invention;

fig. 5(b) is an exploded view of the liquid transport apparatus of the present invention;

fig. 5(c) is an exploded view of the liquid transport apparatus of the present invention;

fig. 5(d) is an exploded view of the liquid transport apparatus of the present invention;

FIG. 6 is a schematic cross-sectional view of a dental irrigator (without a spray head) according to the present invention;

FIG. 7 is a schematic cross-sectional view illustrating a state of the lower shell of the tooth irrigator according to the present invention;

fig. 8 is a schematic outline view of the tooth rinsing device of the present invention.

Reference numerals:

1. a pump body; 11. a pump housing; 111. a water outlet; 112-a water inlet; 12. a pump chamber; 13. a first connection portion; 14. a piston; 141. a soft rubber plug; 142. an adapter component; 15. a metal sheath; 16. a seal member; 2. a drive mechanism; 21. a motor; 22. a transmission mechanism; 221. a first gear; 222. an eccentric gear; 222A and a connecting shaft; 223. a connecting rod; 223A, a connecting ring; 223B, a ball head structure; 224. a gear shaft; 3. a support; 31. a first cavity; 32. a second cavity; 33. a second connecting portion; 331. a seal mounting port; 34. a first frame; 35. a second frame; 4. a battery; 5. a water pumping pipe; 51. a first pumping pipe; 52. a second pumping pipe; 53. pumping water for two ways; 54. a water pumping joint; 55. a spring; 6. an inner shell; 61. a third cavity; 62. a water pumping port; 7. a housing; 71. a first housing; 711. a first mounting port; 712. a second mounting opening; 72. a second housing; 721-water storage space; 8. a direct injection type spray head; 9. a spray type spray head.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, which may be a mechanical connection, an electrical connection, which may be a direct connection, or an indirect connection via an intermediate medium. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.

For the purpose of facilitating understanding of the embodiments of the present application, the following description will be made in terms of specific embodiments with reference to the accompanying drawings, which are not intended to limit the embodiments of the present application.

Example 1

A specific embodiment of the present invention, as shown in fig. 1-4 and fig. 5(a) - (d), discloses a liquid conveying apparatus, comprising:

the pump body 1 is provided with a pump shell 11 and a pump cavity 12, wherein the pump shell 11 is provided with a first connecting part 13, and a piston 14 is installed in the pump cavity 12;

a drive mechanism 2 having a motor 21, the motor 21 being in powered communication with the piston 14;

a bracket 3 having a power compartment for mounting the motor 21;

wherein, the bracket 3 is provided with a second connecting part 33, and the second connecting part 33 is detachably connected with the first connecting part 13.

Specifically, the pump shell 11 is provided with a water outlet 111 and a water inlet 112, the water outlet 111 is connected with the spray head, and the water inlet 112 is connected with the water pumping pipe 5; a first connecting part 13 is arranged at the lower end opening of the pump shell 11, and a piston 14 is arranged in the pump cavity 12;

the driving mechanism 2 further comprises a transmission mechanism 22, an output shaft of the motor 21 is connected with the transmission mechanism 22, and the transmission mechanism 22 is connected with the piston 14 so as to drive the piston 14 to slide back and forth in the pump cavity 12;

the power cabin comprises a first cavity 31 and a second cavity 32, the motor 21 is mounted in the first cavity 31, the transmission mechanism 22 is mounted in the second cavity 32, a second connecting portion 33 is arranged at the opening at the top end of the support 3, and the second connecting portion 33 is detachably connected with the first connecting portion 13 through a bolt.

Compared with the prior art, the liquid conveying device of the embodiment directly connects the support with the pump body instead of wrapping the pump body by using the support, and the structural design not only can increase the sealing structure of the pump body, but also can save materials and space and is convenient to maintain.

In this embodiment, the transmission mechanism 22 includes a first gear 221, an eccentric gear 222, and a connecting rod 223, the first gear 221 is fixed to the output shaft of the motor 21, the eccentric gear 222 is installed in the second chamber 32 through a gear shaft 224, a first end of the connecting rod 223 is connected to the eccentric gear, and a second end of the connecting rod 223 is connected to the piston 14.

When the liquid conveying device works, the motor 21 drives the eccentric gear 222 to rotate, the eccentric gear 222 drives the connecting rod 223 to do eccentric movement when rotating, the connecting rod 223 with the soft rubber plug 141 moves back and forth in the pump cavity 12 when moving, water in the water tank is pumped through the water pumping pipe 5, and the pumped water is sprayed out through the water outlet 111 and the spray head.

In this embodiment, the piston 14 includes a soft rubber plug 141, and the soft rubber plug 141 is slidably mounted in the pump chamber 12. Because the motor 21 drives the connecting rod 223 through the deviation gear 222, and further drives the piston 14 to reciprocate in the pump chamber 12, the connecting rod 223 eccentrically moves, and therefore the soft rubber plug 141 is rotatably connected to the second end of the connecting rod 223 through the adapter part 142, and the rotatable connection structure can improve the work smoothness of the piston 14.

Specifically, a connecting ring 223A is arranged at a first end of the connecting rod 223, the eccentric wheel is provided with a connecting shaft 222A, the connecting ring 223A is rotatably arranged on the connecting shaft 222A, the inner diameter of the connecting ring 223A is larger than the shaft diameter of the connecting shaft 222A, the axis of the connecting shaft 222A coincides with the center line of the eccentric wheel, the connecting shaft 222A is provided with a through hole for the gear shaft 224 to pass through, and the center line of the through hole does not coincide with the center line of the eccentric wheel. The second end of connecting rod 223 sets up bulb structure 223B, and bulb structure 223B installs in adaptor part 142's spherical installation space, and bulb structure 223B imbeds in adaptor part 142's spherical installation space, can be at spherical installation space internal rotation, and can drive the soft plug 141 and remove in pump chamber 12 when connecting rod 223 eccentric motion, and can not break away from.

In order to improve the moving smoothness of the soft rubber plug 141 in the pump cavity 12, a metal sleeve 15 is further arranged in the pump cavity 12, the metal sleeve 15 is fixedly arranged in the pump cavity 12, and the soft rubber plug 141 is installed in the metal sleeve 15 in a sliding and sealing mode.

In an alternative embodiment of this embodiment, the bracket 3 includes a first frame 34 and a second frame 35 that are detachably connected, and after the first frame 34 is connected with the second frame 35, a first cavity 31 and a second cavity 32 are formed.

In this embodiment, the connection between the pump housing 11 and the bracket 3 may be in various manners, as long as the bottom end of the pump housing 11 and the top end of the bracket 3 can be fixed, and the pump cavity 12 is communicated with the second cavity 32 to ensure the normal movement of the connecting rod 223.

Illustratively, the pump casing 11 and the bracket 3 are connected by screws, and it can also be understood that the second connecting portion 33 and the first connecting portion 13 are in a flange connection structure.

In an alternative embodiment of this embodiment, the first connecting portion 13 includes a first connecting plate provided on the outer peripheral wall of the lower end of the pump housing 11 and extending radially outward from the lower end opening of the pump chamber 12; the second connection part 33 includes a second connection plate integrally formed at the top end of the first frame 34 and perpendicular to the center line of the second cavity 32; the second connecting plate is provided with a sealing element mounting port 331, the sealing element mounting port 331 communicating with the second cavity 32, the second connecting plate being parallel to the first connecting plate. By integrally forming the second connecting plate at the top end of the first frame 34, the number of joints is reduced, and sealing performance is ensured.

In this embodiment, the upper end of the pump case 11 is provided with a water outlet 111, the water outlet 111 is connected with the spray head, the side wall of the pump case 11 is provided with a water inlet 112, and the water inlet 112 is communicated with the water storage space 721 through the water pumping pipe 5.

In order to make the structure of the device more compact and reduce the volume of the device, a battery holder is arranged on the outer side wall of the first frame 34 and used for installing a battery 4 for providing power for the liquid conveying device; the pumping pipe 5 is disposed against an outer side wall of the first frame 34 and extends to the water storage space 721.

It should be noted that the utility model discloses a liquid conveying device can be used for the washing/water jet equipment of various water spray principles, especially as the core of washing the tooth ware, adopts this embodiment liquid conveying device's tooth ware that washes, simple structure, compact structure, small, the equipment miniaturization of being convenient for promotes the portability.

Example 2

Because the pump case 11 in embodiment 1 is directly connected with the bracket 3, and the pump cavity 12 of the body 1 is communicated with the second cavity 32 on the upper portion of the bracket 3, the soft rubber plug 141 and the side wall of the pump cavity 12 cannot be absolutely sealed, and the soft rubber plug 141 is deformed or abraded in the process, so that the possibility of water leakage into the second cavity 32 exists, and the working safety of the motor is affected.

Based on the above problem, according to another specific embodiment of the present invention, as shown in fig. 5(a) - (d) and fig. 6, a liquid delivery device is disclosed, in embodiment 1, the power compartment is separated from the pump cavity 12 by a sealing member 16, the sealing member 16 is provided with a through hole, the transmission mechanism 22 passes through the sealing member 16 and is attached to the sealing member 16, the first end of the transmission mechanism 22 is connected to the output shaft of the motor 21, the second end of the transmission mechanism 22 passes through the sealing member 16 and extends into the pump cavity 12 to be connected to the piston 14, and the sealing member 16 is attached to the connecting rod 223 of the transmission mechanism 22 in a sealing manner. Specifically, the sealing member 16 is fixed between the second cavity 32 and the pump cavity 12 in a sealing manner, the output shaft of the motor 21 is connected with the connecting rod 223 through the gear transmission assembly, the connecting rod 223 penetrates through the through hole of the sealing member 16 and extends into the pump cavity 12 to be connected with the piston 14, and the connecting rod 223 is attached to the wall of the through hole of the sealing member 16.

Through the sealing piece 16 which is sealed and attached with the connecting rod 223, the second cavity 32 and the pump cavity 12 are separated by the sealing piece, the connecting rod 223 is not influenced to move up and down in the second cavity 32 and the pump cavity 12, the sealing performance between the pump cavity 12 of the pump body 1 and the second cavity 32 of the support 3 is effectively improved, and therefore the working safety and the reliability of the liquid conveying device are guaranteed.

It should be noted that, the sealing member 16 is attached to the connecting rod 223, and there are various connection forms, such as fixed connection and sliding connection, as long as it can ensure the sealing between the connecting rod 223 and the sealing member 16 after the sealing member passes through the connecting rod 223, and the connecting manner of the sealing member does not affect the reciprocating movement of the connecting rod 223 while playing a sealing role.

For example, the sealing member 16 may be fixedly connected to the outer peripheral wall of the connecting rod 223, in this connection manner, the sealing member 16 is made of an elastic material or has a telescopic structure, and during the reciprocating movement of the piston 14 driven by the connecting rod 223, the sealing member 16 is elastically deformed or moves along with the connecting rod 223 through a telescopic action; the sealing member 16 may also be in sliding sealing contact with the connecting rod 223, and the sealing member is always in sliding sealing contact with the sealing member during the movement of the connecting rod 223, so as to realize the sealing function.

An optional implementation manner of this embodiment, specifically speaking, the sealing member 16 has a first end opening and a second end opening, the first end opening and the second end opening are not in the same plane, the first end opening is fixed by the first connecting portion 13 and the second connecting portion 33 in an extruding manner, the second end opening is also the through hole of the sealing member 16 and is attached to the connecting rod 223, the structure is convenient for installation, and the first connecting portion 13 and the second connecting portion 33 are fixed in an extruding manner, so that the installation stability of the sealing member 16 is ensured, and the sealing member 16 is effectively prevented from being displaced in the moving process of the connecting rod 223, which brings adverse effects to the sealing performance.

In an alternative embodiment of this embodiment, the sealing element 16 is funnel-shaped, the second connecting portion 33 is provided with a sealing element mounting opening 331, the first end opening is provided with an annular outer edge, the outer diameter of the annular outer edge is larger than the inner diameter of the sealing element mounting opening 331, and the annular outer edge is clamped in the sealing element mounting opening 331. That is, the seal 16 has an annular outer edge, and the second connecting portion 33 is provided with a seal mounting opening 331, and the annular outer edge is mounted in the seal mounting opening 331 and is sandwiched and fixed by the first connecting portion 13 and the second connecting portion 33.

In an alternative embodiment of this embodiment, the lower end surface of the annular outer edge is provided with an annular protrusion, and the sealing member mounting opening 331 is provided with an annular groove adapted to the annular protrusion.

Furthermore, the annular bulge is filled in the annular groove in an interference mode, and the sealing performance can be improved by adopting the interference filling mode.

Further, the annular protrusion comprises a first annular protrusion and a second annular protrusion which are concentrically arranged, and the annular groove comprises a first annular groove and a second annular groove which are concentrically arranged. By arranging the two-stage sealing structure, the performance of the dense layer is improved.

Furthermore, the first annular bulge is positioned in the second annular bulge, and the height of the first annular bulge is greater than that of the second annular bulge; the first annular bulge is matched with the first annular groove, and the second annular bulge is matched with the second annular groove. Through carrying out high differentiation setting with two annular archs, and the annular protruding height that highly is greater than the outer loop of annular arch of inner ring guarantees the joint strength of first connecting portion 13 and second connecting portion 33, and can further promote sealing performance.

In an optional implementation manner of this embodiment, the sealing member 16 is made of elastic rubber, and the connecting rod 223 is fixedly connected to the through hole wall of the sealing member 16, and the connecting rod can move smoothly by using soft rubber, so as to reduce resistance; further, the inner diameter of the second end opening is smaller than the rod diameter of the connecting rod 223, and the sealing element 16 has elasticity, so that the second end opening can be tightly fixed on the connecting rod 223, the sealing performance is improved, and the assembly and disassembly are convenient.

Further, be equipped with first spacing portion and the spacing portion of second on the connecting rod 223, the second end opening is sealed to be fixed in on the connecting rod 223 between first spacing portion and the spacing portion of second, sets up spacing portion during through, fixes the second end opening of sealing member 16 between two spacing portions, prevents that the second end opening from removing the sealed effect of influence at will.

In an alternative embodiment of this embodiment, the sealing member 16 is in sliding sealing contact with the connecting rod 223, and optionally, the sealing member 16 is made of a rigid material, the aperture of the through hole is equal to the rod diameter of the connecting rod 223, and the through hole of the sealing member 16 is slidably sleeved on the connecting rod 223. Of course, in the case of a sliding-sealing connection, the sealing element 16 can also be made of an elastic rubber, in which case the bore diameter of the through-bore is smaller than the rod diameter of the connecting rod 223.

Example 3

The existing tooth flushing device is limited by the structure of the machine core, the water pumping hose pipeline is often set to be a bent nonlinear pipeline, the water pumping resistance is large, the water pumping of a water channel is not smooth, the efficiency is low, the whole power consumption loss of the tooth flushing device is high, and the full-electricity use time is reduced.

Based on the above problem, another specific embodiment of the present invention discloses a tooth flushing device, as shown in fig. 6 to 8, including the liquid conveying device in embodiment 1, and improving the water pumping pipeline of the liquid conveying device, specifically, the pump body 1 is provided with a water inlet 112 and a water outlet 111, the water outlet 111 supplies liquid to be sprayed out, the water inlet 112 is connected with the water pumping pipe 5, and the water pumping pipe 5 extends to the water tank linearly. Through arranging the pipeline of the water pumping pipe into a straight line, the bending number of the water pumping channel is obviously reduced, so that the water pumping resistance is reduced, the power consumption loss is reduced, and the full-electricity service time is prolonged.

It should be noted that, the "straight line" in the patent regarding "the straight extension of the pumping pipe" and "the straight arrangement of the pumping pipe" is not a connecting line between two points in the strict geometric sense, and the pumping pipe in the patent is a straight line, including the following cases: the pumping pipe can be completely straight in geometric sense or can be bent to a certain extent, but the whole or local bending degree of the pumping pipe is very small, and the pumping pipe is in an approximate straight line.

The tooth flusher of the embodiment also comprises an outer shell 7 and a spray head, wherein the outer shell 7 is arranged outside the inner shell 6. The outer shell 7 includes a first outer shell 71 and a second outer shell 72 detachably connected, the first outer shell 71 is fixedly disposed on the upper portion of the inner shell 6, the second outer shell 72 is slidably disposed on the lower portion of the inner shell 6, the second outer shell 72 serves as a water tank, and the second outer shell 72 slides down to form a water storage space 721 with the bottom wall of the inner shell 6.

As shown in fig. 5(a) - (d) and fig. 6 to 7, the pumping pipe 5 includes a first pumping pipe 51 and a second pumping pipe 52 which are communicated with each other, the first pumping pipe 51 is connected to the water inlet 112 and attached to the outer wall of the first frame 34, and is disposed in a straight line or an approximately straight line, and the second pumping pipe 52 extends downward into the water storage space 721.

In order to prevent the pumping pipe from swinging, the outer side wall of the first frame 34 and the second connecting part 33 are respectively provided with a limiting part, the limiting parts are used for enabling the first pumping pipe 51 to be tightly attached to the first frame 34, so that the pumping hose is prevented from being bent, the device is guaranteed to have stable low pumping resistance, and the service life of full electricity is prolonged.

In this embodiment, an inner shell 6 is provided outside the liquid delivery device, and a third cavity 61 is vertically arranged between the side wall of the liquid delivery device and the inner wall of the inner shell 6; the side wall of the pump case 11 is provided with a water inlet 112, the bottom wall of the inner shell 6 is provided with a water pumping port 62, the water inlet 112 is connected with the water pumping port 62 through a first water pumping pipe 51, and the first water pumping pipe 51 is located in the third cavity 61.

Further, the length of the first pumping duct 51 is equal to the linear distance from the pumping port 62 to minimize the bending of the pumping duct.

In an alternative embodiment of this embodiment, a first end of the first pumping pipe 51 is connected to the water inlet 112 through the pumping double-way pipe 53, a second end of the first pumping pipe 51 is connected to the pumping port 62 through a first end of the pumping joint 54, a second end of the pumping joint 54 is connected to the second pumping pipe 52, the second pumping pipe 52 is located in the water storage space 721, and a length of the second pumping pipe 52 is equal to a maximum height of the water storage space 721. The water inlet channel of the pumping double-channel 53 is basically in a straight line with the pumping joint 54, the pumping pipeline has no corner bend, and the pumping port 62 at the machine body is concentrically arranged with the pumping joint 54, so that the whole pumping hose is basically in a straight line.

In an optional implementation manner of this embodiment, the water inlet of the pumping double-way pipe 53 is disposed toward the water pumping port 62, the effective length of the first water pumping pipe 51 is equal to a linear distance from the water inlet of the pumping double-way pipe 53 to the water outlet of the pumping joint 54, the effective length of the first water pumping pipe 51 refers to a length of the inner wall of the water pipe contacting water, and does not include a length of the two ends of the first water pumping pipe connected to the pumping double-way pipe 53 and the pumping joint 54.

Further, the water pumping joint 54 has a first central line, the water inlet of the water pumping double passage 53 has a second central line, and the first central line and the second central line are coincident and are both perpendicular to the bottom wall of the inner shell 6. The structure arrangement enables the length of the first water pumping pipe 51 to be shortest, and the water pumping efficiency is improved.

In an alternative embodiment of this embodiment, the second pumping duct 52 is externally sleeved with a spring 55, and the length of the spring 55 in a natural state is equal to the length of the second pumping duct 52.

In the embodiment, a battery 4 is arranged on the first side wall of the liquid conveying device, and the battery 4 is used for supplying power to the tooth flushing device; the first suction pipe 51 is arranged against a first side wall of the liquid delivery device. In particular, the batteries are arranged on the outer side wall of the first frame 34, the first suction pipe 51 being located on the side of the batteries 4, this constructive arrangement making the device more compact.

Fig. 6 is a schematic cross-sectional view showing the non-pulled state of the second outer casing 72 without the nozzle installed on the water toothpick, and the second outer casing 72 is in a retracted state when the water toothpick is not in use, and an accommodating space is formed between the second outer casing 72 and the bottom wall of the inner casing 6 for accommodating the bent second pumping tube 52.

In an alternative embodiment of this embodiment, the second pumping duct 52 is externally sleeved with a spring 55, and the length of the spring 55 in a natural state is equal to the length of the second pumping duct 52. When the second casing 72 is not taken down, the second pumping pipe 52 is bent in the accommodating space, and when water needs to be filled, the second casing 72 is pulled down, so that the second pumping pipe 52 is in a vertical state and is basically in a straight line with the first pumping pipe 51 under the elastic force of the spring 55, and the resistance caused by the bending of the water pipe is obviously reduced.

In this embodiment, the first outer casing 71 covers the top of the liquid delivery device and at least partially surrounds the upper part of the inner casing 6; the first housing 71 has a first mounting hole 711 at the top thereof, the first mounting hole 711 communicates with the water outlet 111 at the top of the pump housing 11, and the nozzle is detachably mounted to the water outlet 111 at the top of the pump housing 11 through the first mounting hole 711.

In this embodiment, the number of the spray heads may be multiple, and the spray heads are detachably arranged, and the spray head modes may include a direct spray head 8 and a spray head 9, so that a user may select a spray head in a desired mode as needed, thereby providing more choices for the user.

In an optional implementation manner of this embodiment, the top of the first casing 71 is further provided with a second mounting opening 712, the second mounting opening 712 is recessed from the upper surface of the first casing 71 to form a receiving blind groove, the receiving blind groove is located in the third cavity, and the receiving blind groove is used for receiving a spare nozzle in the same mode or a spare nozzle in another mode.

In this embodiment, the lower portion of the second outer casing 72 is provided with a water filling opening, the water filling opening is detachably provided with a cover body, when the water filling device is used, the second outer casing 72 is pulled down, the water storage space 721 is formed by the second outer casing and the bottom surface of the inner casing 6, the cover body is opened, water is filled into the water storage space 721 through the water filling opening, and after the water filling is completed, the cover body is covered.

In this embodiment, the housing 7 further includes a waterproof connector and a protective cover, the waterproof connector is electrically connected to the battery 4, and an external power source charges the battery 4 through the waterproof connector.

In this embodiment, the tooth flusher further comprises a control circuit board for controlling the operation of the liquid delivery device and the tooth flushing mode.

Compared with the prior art, the tooth rinsing device provided by the embodiment has at least the following beneficial effects:

1. simple structure, compact structure, small, the equipment miniaturization of being convenient for promotes the portability.

2. The support is directly connected with the pump body instead of wrapping the pump body by the support, and the structural design not only can increase the sealing structure of the pump body, but also saves materials and space and is convenient to maintain.

3. Through setting up the sealing member, separate second cavity and pump chamber, effectively promoted the sealing performance between pump chamber and the support second cavity to guarantee the work security and the reliability of device.

4. Under the condition that the whole volume of tooth ware does not increase towards, arrange the drinking-water pipe way into the straight line, the hose does not have unnecessary bending, is showing the quantity of bending that reduces the passageway that draws water to this reduces the resistance of drawing water, and it is efficient to draw water, reduces the loss of power consumption, and under the same electric quantity of whole machine, the use of tooth ware is long towards in this embodiment, and under the same output power condition, tooth ware output water pressure is bigger towards in this embodiment moreover.

The above-mentioned embodiments, objects, technical solutions and advantages of the present application are described in further detail, it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present application, and are not intended to limit the scope of the present application, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.

Claims (10)

1. A liquid delivery device, comprising:

the pump comprises a pump body (1) and a pump body (11), wherein the pump body (1) is provided with a pump shell (11) and a pump cavity (12), the pump shell (11) is provided with a first connecting part (13), and a piston (14) is installed in the pump cavity (12);

a motor (21) in power connection with the piston (14);

a bracket (3) having a power compartment for mounting the motor (21);

the bracket (3) is provided with a second connecting part (33), and the second connecting part (33) is detachably connected with the first connecting part (13).

2. The liquid delivery device according to claim 1, wherein the second connecting portion (33) is connected to the first connecting portion (13) by a bolt.

3. The fluid delivery device according to claim 2, wherein the first connecting portion (13) is provided at a lower end of the pump housing (11), and the second connecting portion (33) is provided at a top end of the holder (3).

4. The liquid transport apparatus according to claim 3, wherein the first connection portion (13) comprises a first connection plate provided at a lower end outer peripheral wall of the pump housing (11) and extending radially outward from a lower end opening of the pump housing (11);

the second connecting portion (33) comprises a second connecting plate, the second connecting plate is arranged at the top end of the support (3), a through hole is formed in the second connecting plate, and the second connecting plate is parallel to the first connecting plate.

5. Liquid delivery device according to any one of claims 1 to 4, wherein the motor (21) is connected to the piston (14) by a connecting rod (223).

6. The liquid delivery device according to claim 5, wherein the piston (14) comprises a soft rubber plug (141), the soft rubber plug (141) being slidably mounted within the pump chamber (12).

7. The liquid delivery device according to claim 6, wherein a first end of the connecting rod (223) is connected to an output shaft of the motor (21) via an eccentric, and a second end of the connecting rod (223) is connected to the piston (14) via an adapter member (142).

8. The liquid delivery device according to claim 1, wherein the frame (3) comprises a first frame (34) and a second frame (35) which are detachably connected, and the first frame (34) and the second frame (35) are connected to form the power chamber.

9. The liquid delivery device according to claim 8, wherein the power compartment is separated from the pump chamber (12) by a seal (16).

10. A dental irrigator comprising a fluid delivery device according to any one of claims 1 to 9.

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