CN215688646U - 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 and a linear motor; the pump body comprises a pump cavity, and a piston is arranged in the pump cavity; the linear motor drives the piston to move linearly back and forth in the pump chamber. This patent still provides a tooth ware that washes, includes liquid delivery mechanism. The utility model has simple structure, changes the traditional gear eccentric transmission mechanism from the original 360-degree rotation into linear motion, cancels the gear transmission, leads the structure of the liquid conveying device to be more simplified, has smaller volume and obviously reduces the noise of the product.

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 ware liquid transport of dashing on the existing market drives the gear through the motor rotation, and the motor drives the connecting rod pulling piston through eccentric gear and is reciprocating motion, because eccentric gear's size is big, and has eccentric motion, needs great motion space, not only leads to the bulky of tooth ware core of dashing, and the tooth ware noise of dashing of this structure is big moreover, and life is short.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the present invention provides a liquid delivery device and a tooth rinsing device, which are used to solve the problems of the prior tooth rinsing device that the motor drives the piston through the gear, which causes high noise and short service life.

The purpose of the utility model is realized as follows:

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

the pump body comprises a pump cavity, and a piston is arranged in the pump cavity;

and the linear motor drives the piston to linearly reciprocate in the pump cavity.

Further, the linear motor is connected with the piston through a connecting rod, and an output shaft of the linear motor is coaxially arranged with the connecting rod.

Further, the first end face of the connecting rod is provided with a mounting groove, and the end part of the output shaft of the linear motor is fixed in the mounting groove.

Further, the mounting groove is provided with an internal thread, and an output shaft of the linear motor is provided with an external thread matched with the internal thread.

Furthermore, a through hole is formed in the wall of the groove penetrating through the mounting groove, and an output shaft of the linear motor is fixed in the mounting groove through screws.

Further, the liquid delivery device further comprises a bracket having a power compartment for mounting the linear motor.

Further, the piston comprises a soft rubber plug which is slidably arranged in the pump cavity; the first end of the connecting rod is connected with the output shaft of the linear motor, and the second end of the connecting rod is connected with the soft rubber plug through the adapter part.

Furthermore, a second end of the connecting rod is provided with a first ball head structure, and a first end of the adapter part is provided with a first spherical mounting space for mounting the first ball head structure; the second end of the switching part is provided with a second ball head structure, and the soft rubber plug is provided with a second spherical mounting space for mounting the second ball head structure.

Furthermore, a metal sleeve is arranged in the pump cavity, a stainless steel cavity is formed on the inner wall surface of the metal sleeve, and a soft rubber plug is arranged in the stainless steel cavity in a sliding and sealing mode.

Further, the pump body comprises a pump shell, and the pump shell is provided with a first connecting part; the support is provided with a second connecting part connected with the first connecting part.

Further, the second connecting part is connected with the first connecting part through a bolt; the lower extreme of pump case is located to first connecting portion, and the top of support is located to the second connecting portion.

Furthermore, 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 radially extending outwards from the opening of the lower end of the pump shell; the second connecting portion include the second connecting plate, and the top of support is located to the second connecting plate, and the second connecting plate is equipped with the through-hole, and the second connecting plate is parallel with first connecting plate.

Further, the support comprises a first frame and a second frame, and the first frame and the second frame are connected to form the power cabin.

Further, the power cabin comprises a first cavity and a second cavity, the linear motor is installed in the first cavity, and the connecting rod is installed in the second cavity.

On the other hand, still provide a tooth flushing device, include the liquid conveyor of above-mentioned technical scheme.

Compared with the prior art, the liquid conveying device and the tooth flushing device provided by the utility model have the advantages that the traditional gear eccentric transmission mechanism is changed into linear motion from original 360-degree rotation, gear transmission is cancelled, so that the structure of the liquid conveying device is simplified, the volume is smaller, and the product noise is obviously reduced.

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 diagram of a liquid delivery device according to the present invention;

fig. 2 is an exploded view of the liquid delivery device of the present invention.

Reference numerals:

1. a pump body; 11. a pump housing; 12. a first connection portion; 13. a piston; 131. a soft rubber plug; 132. an adapter component; 14. a metal sheath; 2. a linear motor; 3. a connecting rod; 31. a first ball head structure; 4. a support; 41. a first frame; 42. a second frame; 43. a second connecting portion; 5. a water pumping pipe; 6. and (4) a 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.

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.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly stated or limited, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

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.

Example 1

One embodiment of the present invention, as shown in fig. 1-2, discloses a liquid delivery device comprising:

the pump comprises a pump body 1, wherein the pump body 1 comprises a pump cavity, and a piston 13 is arranged in the pump cavity;

the linear motor 2, the linear motor 2 drives the piston 13 to move back and forth in the pump cavity.

Compared with the prior art, the liquid conveying device provided by the embodiment changes the traditional gear eccentric transmission mechanism from original 360-degree rotation into linear motion, cancels gear transmission, simplifies the structure of the liquid conveying device, reduces the volume, and reduces the noise of the product by linearly driving the piston to move by the linear motor.

In this embodiment, the linear motor 2 is connected to the piston 13 through the connecting rod 3, and the output shaft of the linear motor 2 is coaxially disposed with the connecting rod 3, so as to ensure that the linear motor drives the piston to perform linear reciprocating motion, thereby improving the smoothness of the piston.

In one alternative embodiment, the first end surface of the connecting rod 3 is provided with a mounting groove, the end part of the output shaft of the linear motor 2 is fixed in the mounting groove, and the connecting rod 3 and the output shaft of the linear motor 2 have the following connecting structures:

the first kind of connection structure, the mounting groove is equipped with the internal thread, and linear motor 2's output shaft is equipped with the external screw thread with internal thread looks adaptation, because linear motor's output shaft drives the piston and reciprocates along its axis straight line, adopts the threaded connection mode, just can realize the connection of the two, adopts the threaded connection mode convenient to detach installation moreover.

The second kind of connection structure, the cell wall that runs through the mounting groove is equipped with the through-hole, and through-hole and mounting groove intercommunication can set up the screw hole on linear motor 2's the output shaft, adopt the screw to pass the through-hole and stretch into the mounting groove, fix linear motor 2's output shaft in the mounting groove.

In the second connection structure, the output shaft of the linear motor 2 is connected with the connecting rod 3 by adopting a coupler.

In one of the alternative embodiments, the liquid delivery device further comprises a support 4, the support 4 having a power compartment for mounting the linear motor 2.

Specifically, the support 4 includes a first frame 41 and a second frame 42, and the first frame 41 and the second frame 42 are connected to form a power cabin.

Optionally, the power cabin includes a first cavity and a second cavity, the linear motor 2 is installed in the first cavity, and the connecting rod 3 is installed in the second cavity.

In this embodiment, the pump body 1 includes the pump case 11, and the connection mode of the pump case 11 and the support 4 can be various, as long as can fix the bottom end of the pump case 11 and the top end of the support 4, and the pump chamber communicates with the second cavity to ensure the normal movement of the connecting rod 3.

In one of the alternative embodiments, the pump housing 11 is provided with a first connection portion 12; the bracket 4 is provided with a second connecting portion 43 detachably connected to the first connecting portion 12. Through with support and pump body lug connection, rather than utilizing the support to wrap up the pump body, not only save material, reduce the volume, be convenient for moreover maintain.

Further, the second connection portion 43 is connected to the first connection portion 12 by a bolt; the lower extreme of pump case 11 is located to first connecting portion 12, and the top of support 4 is located to second connecting portion 43, and this connected mode, the dismouting of being convenient for, the leakproofness is good moreover.

Further, the first connecting portion 12 includes a first connecting plate provided at the lower end outer peripheral wall of the pump case 11 and formed by extending radially outward from the lower end opening of the pump case 11; the second connecting portion 43 includes a second connecting plate integrally formed at the top end of the first frame 41 and perpendicular to the center line of the second cavity; the second connecting plate is provided with a through hole communicated with the second cavity, and the second connecting plate is parallel to the first connecting plate. By integrally forming the second connecting plate at the top end of the first frame 41, the number of joints is reduced, and sealing performance is ensured.

In this embodiment, the piston 13 includes a soft rubber plug 131, and the soft rubber plug 131 is slidably mounted in the pump chamber; the first end of the connecting rod 3 is connected with the output shaft of the linear motor 2, and the second end of the connecting rod 3 is connected with the soft rubber plug 131 through the adapter part 132.

In one alternative embodiment, the second end of the connecting rod 3 is provided with a first ball structure 31, and the first end of the adapter member 132 is provided with a first ball mounting space to be equipped with the first ball structure 31. The second end of the adapting part 132 is provided with a second ball head structure, and the soft rubber plug 131 is provided with a second spherical mounting space for mounting the second ball head structure. This structural setting, the spare part equipment of being convenient for on the one hand is dismantled, and on the other hand, through bulb structural setting, can make the bulb end of connecting rod can be at the rotation of sphere installation space within a small circle scale within range, has the deviation when avoiding because of linear motor's drive shaft and the axis installation of connecting rod, leads to the piston atress uneven, influences life-span and the work flow nature of piston.

An optional implementation of this example, install metal covering 14 in the pump chamber, the internal face of metal covering 14 forms the stainless steel cavity, and flexible glue stopper 131 sliding seal installs in the stainless steel cavity, through setting up the stainless steel cavity, can show the smooth and easy nature that promotes flexible glue stopper reciprocating motion in the pump chamber, can reduce the electric quantity loss moreover, promotes the single live time of fully utilizing.

In this embodiment, the pump case 11 is provided with a water outlet and a water inlet, the water outlet is connected with the spray head 6, and the water inlet is connected with the water pumping pipe 5. Particularly, the upper end of pump case 11 is located to the delivery port, and the delivery port is connected with shower nozzle 6, and the lateral wall of pump case 11 is located to the water inlet, and the water inlet passes through drinking-water pipe 5 and water storage space intercommunication of towards tooth ware.

In order to make the structure of the liquid conveying device more compact and reduce the volume, a battery holder is arranged on the outer side wall of the first frame 41, and the battery holder is used for mounting a battery for providing power for the liquid conveying device; the pumping pipe 5 is arranged against the outer side wall of the first frame 41 and extends straight to the water storage space of the tooth flusher.

It should be noted that the liquid conveying device of the utility model can be used for washing/water spraying equipment with various water spraying principles, in particular as a core of a tooth washing device.

Example 2

In another embodiment of the present invention, a tooth flushing device is disclosed, which comprises the liquid delivery device of embodiment 1, wherein an inner shell is disposed outside the liquid delivery device, an outer shell is disposed outside the inner shell, a water storage space is formed between the outer shell and the inner shell, and a water pumping pipe 5 extends to the water storage space.

In one optional embodiment, the outer shell comprises a first outer shell and a second outer shell which are detachably connected, the first outer shell is fixedly arranged at the upper part of the inner shell, the second outer shell is arranged at the lower part of the inner shell in a sliding mode and serves as a water tank, and the second outer shell slides downwards to form a water storage space with the bottom wall of the inner shell.

In this embodiment, the water pumping pipe 5 includes a first water pumping pipe and a second water pumping pipe which are communicated with each other, a third cavity which is vertically arranged is formed between the outer side wall of the liquid conveying device and the inner wall of the inner shell, and the first water pumping pipe is located in the third cavity; the lateral wall of pump case 11 is equipped with the water inlet, and the diapire of inner shell is equipped with the mouth that draws water, and the water inlet is connected through first drinking-water pipe with the mouth that draws water, and first drinking-water pipe is connected with the water inlet and pastes in the outer wall of first frame 41, is sharp or the setting of approximate straight line, and second drinking-water pipe 42 downwardly extending is to the water storage space in. 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, it is bigger towards tooth ware output water pressure moreover.

Furthermore, the length of the first pumping pipe is equal to the linear distance from the pumping port to the pumping port, so that the bending of the pumping pipe is reduced as much as possible. The first end of first drinking-water pipe is connected in the water inlet through the bi-pass that draws water, and the second end of first drinking-water pipe is connected in the mouth that draws water through the first end of pumping joint, and the second end that pumps water the joint is connected with the second drinking-water pipe, and the second drinking-water pipe is located water storage space, and the length of second drinking-water pipe equals water storage space's maximum height. The water inlet channel of the pumping bi-pass is basically in a straight line with the pumping joint, the pumping pipeline is not bent at a corner, and the pumping port at the machine body is concentrically arranged with the pumping joint, so that the whole pumping hose is basically in a straight line.

Furthermore, the water pumping connector is provided with a first central line, the water inlet of the double-way water pumping connector is provided with a second central line, and the first central line and the second central line are superposed and are perpendicular to the bottom wall of the inner shell. The length that this structural arrangement made first drinking-water pipe is the shortest, promotes the efficiency of drawing water.

Furthermore, the second pumping pipe is sleeved with a spring, and the length of the spring in a natural state is equal to that of the second pumping pipe.

In this embodiment, the number of the nozzles may be plural, and the nozzles are detachably mounted on the water outlet at the top end of the pump housing 11. The tooth flushing device comprises a direct injection type spray head and a spraying type spray head, and a user can select the spray head with a required mode according to needs, so that more choices are provided for the user.

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), wherein the pump body (1) comprises a pump cavity, and a piston (13) is arranged in the pump cavity;

a linear motor (2), wherein the linear motor (2) drives the piston (13) to linearly reciprocate in the pump cavity.

2. The liquid delivery device according to claim 1, wherein the linear motor (2) is connected to the piston (13) by a connecting rod (3), and an output shaft of the linear motor (2) is disposed coaxially with the connecting rod (3).

3. The liquid delivery apparatus according to claim 2, wherein the first end surface of the link (3) is provided with a mounting groove in which an end portion of the output shaft of the linear motor (2) is fixed.

4. A liquid delivery device according to claim 3, wherein the mounting groove is provided with an internal thread, and the output shaft of the linear motor (2) is provided with an external thread adapted to the internal thread;

or a through hole is formed in the wall of the groove penetrating through the mounting groove, and the output shaft of the linear motor (2) is fixed in the mounting groove by screws.

5. The liquid delivery device according to claim 2, wherein the piston (13) comprises a soft rubber plug (131), the soft rubber plug (131) being slidably mounted in the pump chamber;

the first end of connecting rod (3) and the output shaft of linear motor (2) are connected, the second end of connecting rod (3) through adaptor part (132) with soft plug (131) are connected.

6. The liquid conveying device according to claim 5, characterized in that the second end of the connecting rod (3) is provided with a first ball head structure (31), and the first end of the adapter part (132) is provided with a first ball-shaped mounting space for mounting the first ball head structure (31);

the second end of switching part (132) sets up second bulb structure, soft plug (131) sets up the spherical installation space of second to in preparation for the installation second bulb structure.

7. The liquid conveying device according to claim 6, wherein a metal sleeve (14) is installed in the pump cavity, a stainless steel cavity is formed on the inner wall surface of the metal sleeve (14), and the soft rubber plug (131) is installed in the stainless steel cavity in a sliding and sealing mode.

8. The liquid delivery device according to any one of claims 1 to 7, further comprising a bracket (4), the bracket (4) having a power compartment for mounting the linear motor (2);

the pump body (1) comprises a pump shell (11), and the pump shell (11) is provided with a first connecting part (12);

the bracket (4) is provided with a second connecting part (43) connected with the first connecting part (12).

9. The liquid conveying apparatus according to claim 8, wherein the second connecting portion (43) is connected to the first connecting portion (12) by a bolt;

the first connecting part (12) is arranged at the lower end of the pump shell (11), and the second connecting part (43) is arranged at the top end of the bracket (4).

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

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