CN219892447U - Pump body mechanism and electronic equipment - Google Patents

Abstract

The embodiment of the utility model provides a pump body mechanism and electronic equipment, wherein the pump body mechanism comprises: the pump body comprises an air outlet end and a connecting end which are oppositely arranged, wherein the connecting end is made of metal, the connecting end of the pump body is provided with a first electrical interface, and the first electrical interface is arranged in an insulating manner with the connecting end; and the electrode plate comprises a first part, a second part and a third part which are sequentially connected, wherein the first part is arranged on one side of the air outlet end, the first part is used for being connected with a power supply, the third part is arranged on one side of the connecting end and is connected with the first electric interface, and the third part is arranged at intervals with the connecting end. The first electrical interface of the pump body can be conveniently connected through the two electrode plates with the same structure, the pump body is not required to be connected by wires with different colors, and the first electrical interface of the pump body is not easy to make mistakes.

Description

Pump body mechanism and electronic equipment

Technical Field

The utility model relates to the technical field of aromatherapy, in particular to a pump body mechanism and electronic equipment.

Background

Along with the continuous development of technology and the increasing level of living of people, the requirements of people on living quality are gradually improved. Therefore, the demands of people on indoor environments and the like are also increasing. In the prior art, people can spray perfume or put solid aromatic in indoor environment and the like to fully fill the indoor environment with the favorite fragrance of people, and mask or eliminate peculiar smell in the indoor environment, thereby meeting the demands of people.

In the related art, people use an aromatherapy atomizer to atomize perfume, and blow the atomized perfume into indoor environments and the like. The air pump in the aromatherapy atomizer needs to be connected with a power supply, and the positive electrode and the negative electrode of the air pump need to be connected with different connecting ends through connecting wires which do not pass through colors, so that mistakes are easy to occur.

Disclosure of Invention

The embodiment of the utility model provides a pump body mechanism and electronic equipment, wherein the first electrical interface connection of a pump body is not easy to make mistakes.

The embodiment of the utility model provides a pump body mechanism, which comprises:

the pump body comprises an air outlet end and a connecting end which are oppositely arranged, wherein the connecting end is made of metal, a first electrical interface is arranged at the connecting end of the pump body, and the first electrical interface is arranged in an insulating manner with the connecting end; and

the electrode plate comprises a first part, a second part and a third part which are sequentially connected, wherein the first part is arranged at the air outlet end and away from one side of the connecting end, the first part is used for being connected with a power supply, the third part is arranged at the connecting end and away from one side of the air outlet end and is connected with a first electrical interface, and the third part is arranged at intervals of the connecting end.

In some embodiments, the third portion includes a connection section connected to the second portion and extending along the second portion toward the pump body, the connection section having a through hole;

the first electrical interface is convexly arranged at the connecting end and penetrates through the through hole.

In some embodiments, the third portion further comprises an intermediate section and a tail section, the tail section is connected with the connecting section through the intermediate section, the intermediate section extends along the connecting section towards a direction away from the pump body, the tail section extends along the intermediate section towards the second portion, and the tail section is spaced from the first electrical interface.

In some embodiments, the distance between the tail section and the first electrical interface is less than the distance between the connection section and the connection end.

In some embodiments, the tail section is disposed substantially parallel to the connecting section.

In some embodiments, the pump body further includes an outer peripheral portion disposed between the air outlet end and the connection end, the outer peripheral portion being metal, and the pump body mechanism further includes an insulating layer disposed between the second portion and the outer peripheral portion.

In some embodiments, the insulating layer is disposed around the outer perimeter.

In some embodiments, the pump body mechanism further comprises:

the shell comprises a first end and a second end which are oppositely arranged, the pump body is arranged in the shell, the air outlet end and the first end are correspondingly arranged, the connecting end and the second end are correspondingly arranged, the first end is provided with an opening, and the opening is exposed out of the first part.

The embodiment of the utility model also provides electronic equipment, which comprises:

a housing;

an atomization mechanism mounted on the housing;

the accommodating bottle is arranged on the shell and is connected with the atomizing mechanism; and

and the pump body mechanism is connected with the atomizing mechanism so that the atomizing mechanism atomizes the liquid in the accommodating bottle, and the pump body mechanism is any one of the pump body mechanisms.

In some embodiments, the outer surface of the pump body mechanism is provided with a first raised line and a second raised line which are arranged at intervals, the first raised line and the second raised line are arranged along the axial direction of the pump body mechanism, and the widths of the first raised line and the second raised line are different;

the housing is provided with an accommodating cavity for accommodating the pump body, the accommodating cavity comprises a first area corresponding to the first raised line and a second area corresponding to the second raised line, and the widths of the second area and the second area are different.

In the embodiment of the utility model, the first electrical interface of the pump body is connected with the electrode plate and is connected with the power supply through the electrode plate, the first electrical interface of the pump body comprises two interfaces of an anode and a cathode, the electrode plate also comprises two electrode plates, the structures of the two electrode plates are identical, and the two electrode plates are respectively connected with the two interfaces of the anode and the cathode of the pump body. The first electrical interface of the pump body can be conveniently connected through the two electrode plates with the same structure, the pump body is not required to be connected by wires with different colors, and the first electrical interface of the pump body is not easy to make mistakes.

Drawings

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

For a more complete understanding of the present utility model and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which like reference numerals represent like parts throughout the following description.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of the electronic device shown in fig. 1.

Fig. 3 is another angular cross-sectional view of the electronic device shown in fig. 1.

Fig. 4 is a schematic structural diagram of a pump mechanism in the electronic device shown in fig. 1.

Fig. 5 is a cross-sectional view of the pump body mechanism shown in fig. 4.

Fig. 6 is a schematic view of the structure of the electrode plate in the pump body mechanism shown in fig. 5.

FIG. 7 is a schematic view of the pump mechanism of FIG. 4 at another angle.

FIG. 8 is a further angular schematic view of the pump body mechanism of FIG. 4.

Reference numerals:

10. an electronic device;

12. a housing 121, a receiving cavity;

14. an atomizing mechanism;

16. a receiving bottle;

18. pump body mechanism 182, first convex strip, 184, second convex strip, 186, first positive pole, 188, first negative pole; 181. pump body, 1812, air outlet end, 1814, connection end, 1816, outer periphery, 1818, first electrical interface, 183, electrode plate, 1832, first portion, 1834, second portion, 1836, third portion, 18362, connection section, 18364, middle section, 18366, tail section, 185, insulating layer, 187, housing, 1872, first end, 18721, opening, 1874, second end;

19. a circuit board.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model based on the embodiments of the present utility model.

The embodiment of the utility model provides electronic equipment, which is exemplified by an aromatherapy atomizer. Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the utility model. The electronic device 10 may provide an atomized fluid, such as an essential oil or perfume, to a user. The electronic device 10 may be used in a variety of environments such as bedrooms, living rooms, meeting rooms, offices, meeting rooms, in-car, courtyards, and the like.

Referring to fig. 2 and 3, fig. 2 is a cross-sectional view of the electronic device shown in fig. 1, and fig. 3 is another angular cross-sectional view of the electronic device shown in fig. 1. The electronic device 10 includes a housing 12, an atomizing mechanism 14, a containing bottle 16, and a pump body mechanism 18. The atomizing mechanism 14 and the holding bottle 16 are mounted to the housing 12. The containing bottle 16 can store the liquid such as essential oil or perfume, the atomizing mechanism 14 is connected with the containing bottle 16, and the pump body mechanism 18 is connected with the atomizing mechanism 14, so that the atomizing mechanism 14 atomizes the liquid in the containing bottle 16, namely the atomizing mechanism 14 can atomize the essential oil or perfume in the containing bottle 16 by matching with the pump body mechanism 18. Wherein the pump body mechanism 18 is mounted to the housing 12 to provide an air flow to the atomizing mechanism 14.

Referring to fig. 4 and 5, fig. 4 is a schematic structural diagram of a pump mechanism in the electronic device shown in fig. 1, and fig. 5 is a cross-sectional view of the pump mechanism shown in fig. 4. The pump body mechanism 18 includes a pump body 181 and an electrode plate 183. The pump body 181 includes a gas outlet end 1812 and a connecting end 1814 which are disposed opposite to each other, the connecting end 1814 is made of metal, the pump body 181 is provided with a first electrical interface 1818 at the connecting end 1814, and the first electrical interface 1818 is insulated from the connecting end 1814. Referring to fig. 6, fig. 6 is a schematic structural diagram of an electrode plate in the pump mechanism shown in fig. 5. The electrode plate 183 includes a first portion 1832, a second portion 1834, and a third portion 1836 sequentially connected, where the first portion 1832 is disposed on a side of the air outlet end 1812 away from the connection end 1814, the first portion 1832 is used for being connected to a power source, the third portion 1836 is disposed on a side of the connection end 1814 away from the air outlet end 1812 and connected to the first electrical interface 1818, and the third portion 1836 is disposed at an interval from the connection end 1814.

The first electrical interface 1818 of the pump body 181 is connected with the electrode plate 183 and is connected with a power supply through the electrode plate 183, the first electrical interface 1818 of the pump body 181 comprises an anode interface and a cathode interface, the electrode plate 183 also comprises two electrode plates 183, the two electrode plates 183 have the same structure, and the two electrode plates 183 are respectively connected with the anode interface and the cathode interface of the pump body 181. The two electrode plates 183 with the same structure can be conveniently connected with the first electrical interface 1818 of the pump body 181, and the pump body 181 does not need to be connected with wires with different colors, so that the first electrical interface 1818 of the pump body 181 is not easy to make mistakes. Meanwhile, the third portion 1836 of the electrode pad 183 is spaced apart from the connection end 1814 to prevent the electrode pad 183 and the connection end 1814 from being electrically connected to be short-circuited.

It can be understood that the pump body can be an air pump or a water pump, and correspondingly, the electronic equipment can be equipment using the air pump such as an aromatherapy atomizer, an air humidifier, an electronic cigarette, and the like, and the electronic equipment can also be equipment using the water pump such as a tooth washer, a soap lye, and the like.

In some embodiments, the third portion 1836 includes a connecting segment 18362, the connecting segment 18362 being connected to the second portion 1834 and extending along the second portion 1834 in the direction of the pump body 181, the connecting segment 18362 being provided with a through hole. The first electrical interface 1818 is protruding from the connection end 1814 and penetrates through the through hole. The first electrical interface 1818 is disposed through the through hole of the third portion 1836, and the first electrical interface 1818 may limit the third portion 1836, so as to limit the electrode plate 183.

In some embodiments, third portion 1836 further includes an intermediate section 18364 and a tail section 18366, tail section 18366 is connected to connecting section 18362 by intermediate section 18364, intermediate section 18364 extends along connecting section 18362 away from pump body 181, tail section 18366 extends along intermediate section 18364 toward second portion 1834, and tail section 18366 is spaced from first electrical interface 1818.

In some examples, the tail section 18366 is disposed generally parallel to the connecting section 18362. In some examples, the extension of the tail section 18366 can also be disposed at an angle, such as less than or equal to 30 or less than or equal to 15 degrees, to the extension of the connecting section 18362. In some examples, the tail section 18366 can be arcuate and curve disposed about the first electrical interface 1818.

It is appreciated that the third portion 1836 and the first electrical interface 1818 may be electrically connected such that an electrical signal from a power source is directed to the pump body 181 through the first electrical interface 1818. Specifically, at least one of the connecting section 18362, the intermediate section 18364, and the tail section 18366 of the third portion 1836 is electrically connected to the first electrical interface 1818.

In some embodiments, the first electrical interface 1818 may be a metal sheet, where a portion of the metal sheet extends into the pump body 181, another portion of the metal sheet is protruding from the pump body 181, and a portion of the metal sheet protruding from the pump body 181 may be provided with a through hole, and the through hole is at least partially located between the connecting section 18362 and the tail section 18366.

In some embodiments, the distance L3 between the tail section 18366 and the first electrical interface 1818 is less than the distance L4 between the connecting section 18362 and the connecting end 1814. The distance L5 between the tail section 18366 and the connecting section 18362 can be greater than the distance L4 between the connecting section 18362 and the connecting end 1814.

In some embodiments, the pump body 181 further includes an outer peripheral portion 1816 disposed between the air outlet end 1812 and the connection end 1814, the outer peripheral portion 1816 being metal. The pump body mechanism 18 also includes an insulating layer 185, the insulating layer 185 being disposed between the second portion 1834 and the outer periphery 1816. The insulating layer 185 may prevent the second portion 1834 of the electrode pad 183 from electrically connecting with the outer peripheral portion 1816 of the pump body 181.

The structure of the insulating layer 185 may be set as needed. In some examples, insulating layer 185 is disposed around outer perimeter 1816 to better isolate outer perimeter 1816 from electrode pad 183. In some examples, the insulating layer 185 may be disposed only between the electrode pad 183 and the outer peripheral portion 1816. Such as on the side of the electrode piece 183 facing the outer peripheral portion 1816, or on the region of the outer peripheral portion 1816 facing the electrode piece 183.

The material of the insulating layer 185 may be set as needed. In some examples, the insulating layer 185 may be EVA foam. The EVA foam not only isolates the outer peripheral portion 1816 from the electrode plate 183, but also buffers the pump body 181. Of course, the insulating layer 185 may be made of other materials, as long as the insulating function is achieved, and the present utility model is not limited thereto.

Referring to fig. 7, fig. 7 is a schematic view of the pump mechanism shown in fig. 4 at another angle. In some embodiments, pump body mechanism 18 further includes a housing 187, housing 187 including oppositely disposed first and second ends 1872, 1874, pump body 181 disposed within housing 187, air outlet end 1812 disposed corresponding to first end 1872, and connecting end 1814 disposed corresponding to second end 1874, first end 1872 being provided with an opening 18721, opening 18721 exposing first portion 1832. The first portion 1832 may be used to connect to a power source, such as a battery or power strip within the electronic device 10, to provide power to the pump body 181.

In some examples, with continued reference to fig. 6, the first portion 1832 of the electrode pad 183 includes a first segment 18322, a second segment 18324, and a third segment 18326 connected in sequence, the first segment 18322 being exposed through the opening 18721 for connection to a power source. The second section 18324 is substantially perpendicular to the first section 18322 and extends in a reverse direction toward the third portion 1836. The third segment 18326 is generally parallel to the first segment 18322 and extends along the second segment 18324 in a direction away from the first segment 18322. The first section 18322, second section 18324, and third section 18326 form a step-like structure. The third segment 18326 can snap into the housing 187 to retain it.

In some examples, a raised structure may be provided on the third segment 18326 that may be an interference fit with the housing 187. The raised structures may resemble conical structures.

Wherein the second portion 1834 is substantially parallel to a side of the pump body 181, the first portion 1832 and the third portion 1836 are arranged on the same side of the second portion 1834, i.e. extend along the second portion 1834 towards the pump body 181. The first portion 1832 is positioned to limit the first electrical interface 1818 and the third portion 1836 is positioned to limit the housing 187, thereby allowing for a good limit of the electrode pad 183.

The positive and negative electrodes (L, N electrodes) of the pump body 181 in this embodiment share the same electrode piece 183. When the pump body mechanism 18 is installed, the pump body 181 is sleeved into the two electrode plates 183 (or the two electrode plates 183 are sleeved on the pump body 181), then the lower cover of the housing 187 is installed (the housing 187 comprises an upper cover and a lower cover), the electrode plates 183 are welded with the positive electrode and the negative electrode of the pump body 181, then the upper cover of the housing 187 is covered with the lower cover, and finally the upper cover and the lower cover are fixedly connected (such as by ultrasonic welding). The material types can be reduced; the assembly process is optimized, and the working hours and the cost are saved; assembly errors can also be reduced.

It should be noted that, because one end of the pump body 181 needs to be provided with the air outlet, the air outlet needs to have a corresponding structure, and therefore, the circuit and the driving part of the pump body 181 are disposed at one end far away from the air outlet, and therefore, the other end of the pump body 181 is provided with the anode-cathode interface, that is, the air outlet and the anode-cathode interface of the pump body 181 are disposed at two ends of the pump body 181. In this embodiment, the pump body 181 needs to provide gas for the atomizing mechanism, so the gas outlet is disposed above, and the positive and negative interfaces of the pump body 181 are disposed below. Therefore, the electrode piece 183 is required to connect the positive and negative electrodes below the pump body 181 to the circuit board 19 above the pump body 181.

Referring to fig. 8, fig. 8 is a schematic view of a pump mechanism shown in fig. 4 at another angle. The outer surface of the pump body mechanism 18 is provided with first and second convex strips 182, 184 arranged at intervals, the first and second convex strips 182, 184 are arranged along the axial direction of the pump body mechanism 18, and the widths of the first and second convex strips 182, 184 are different. The housing 12 is provided with a housing chamber 121 housing the pump body mechanism 18, and the housing chamber 121 includes a first region corresponding to the first protrusion 182 and a second region corresponding to the second protrusion 184, and the widths of the second region and the second region are different. In some examples, the width L1 of the first rib 182 is greater than the width L2 of the second rib 184. Of course, in other examples, the width L1 of the first ridge may be smaller than the width L2 of the second ridge.

When the pump body mechanism 18 is mounted in the accommodating cavity 121 in the housing 12, the first raised bar 182 is placed in the first area, and the second raised bar 184 is placed in the second area, so that the pump body mechanism 18 is just mounted in the accommodating cavity 121. The first protrusion 182 is matched with the first region, the second protrusion 184 is matched with the second region, that is, the width of the first region is slightly larger than the width of the first protrusion 182, and the width of the second region is slightly larger than the width of the second protrusion 184. If the pump body mechanism 18 is reversed, the pump body mechanism 18 cannot be normally installed into the housing 12 because the first protrusion 182 and the second region do not match and the second protrusion 184 and the first region do not match. In the electronic device 10 of the embodiment, the pump body mechanism 18 can be conveniently and rapidly installed in the accommodating cavity 121 of the housing 12, and the pump body mechanism 18 is prevented from being burned out due to the reverse installation of the pump body mechanism 18.

It can be appreciated that the housing 12 may form a first groove corresponding to the first area, the housing 12 forms a second groove corresponding to the second area, the first protrusion 182 is clamped into the first groove, the second protrusion 184 is clamped into the second groove, and the pump mechanism 18 may be limited by the cooperation of the first groove and the first protrusion 182, and the second protrusion 184, and the positive and negative poles of the pump mechanism 18 may be prevented from being reversed, so as to prevent the damage of the pump mechanism 18 caused by the reversed positive and negative poles. In the production and installation process, the installation position of the pump body mechanism 18 can be rapidly determined through the first raised strips 182, the second raised strips 184 and the like, so that the pump body mechanism can be rapidly and accurately installed, and the production efficiency is improved.

It will be appreciated that in some examples, positive and negative indicia may be provided on the exterior surface of the pump body mechanism 18, and that the mating of the first and second protrusions 182, 184 may provide for faster and better installation of the pump body mechanism 18.

In some embodiments, the first protrusion 182 and the second protrusion 184 are disposed opposite along a central axis of the pump body mechanism 18. The first raised strips 182 and the second raised strips 184 are arranged opposite to each other, so that the production is convenient. When the pump body mechanism 18 is installed, the position of the pump body mechanism 18 can be well identified, and the installation is convenient.

In some embodiments, the first portions 1832 of the two electrode tabs 183 of the pump body mechanism 18 may serve as a first positive electrode and a first negative electrode of the pump body mechanism 18, respectively, the first positive electrode and the first negative electrode being for connecting a positive electrode and a negative electrode of a power source, the first positive electrode being disposed adjacent to the first protrusion 182, and the first negative electrode being disposed adjacent to the second protrusion 184. The first positive electrode and the first protruding strip 182 are adjacently arranged, and the first negative electrode and the second protruding strip 184 are adjacently arranged, so that the pump body mechanism 18 is convenient to produce. For example, the first positive electrode and the first negative electrode are positioned on opposite sides of one end of the pump body mechanism 18, and the first protrusion 182 and the second protrusion 184 are positioned on opposite sides of the pump body mechanism 18.

The electronic device 10 may also include a circuit board 19, the circuit board 19 may control the opening or closing of the pump mechanism 18. Other devices, such as a battery or a power circuit, may be further disposed in the electronic device 10, that is, the control circuit board 19 may be powered by a built-in battery, or may be connected to an external power source through the power circuit to supply power to the pump body mechanism 18, the circuit board 19, etc., where the external power source is not limited in this embodiment, and the external power source may be a commercial power (such as 220 ac, 110 ac, etc.), or may be a mobile power source or a dc power provided by an adapter. The circuit board 19 may also have other functions. For example, intermittent opening of the pump mechanism 18 is controlled, and the operation mode of the pump mechanism 18 is controlled. I.e., the length of time that pump mechanism 18 is operated each time, and the length of the interval between two operations of pump mechanism 18.

The embodiments, the implementation modes and the related technical features of the utility model can be mutually combined and replaced under the condition of no conflict.

In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The pump body mechanism and the electronic device provided by the embodiment of the utility model are described in detail, and specific examples are applied to illustrate the principle and the implementation mode of the utility model, and the description of the above embodiments is only used for helping to understand the method and the core idea of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims (10)

1. A pump body mechanism, comprising:

the pump body comprises an air outlet end and a connecting end which are oppositely arranged, wherein the connecting end is made of metal, a first electrical interface is arranged at the connecting end of the pump body, and the first electrical interface is arranged in an insulating manner with the connecting end; and

the electrode plate comprises a first part, a second part and a third part which are sequentially connected, wherein the first part is arranged at the air outlet end and away from one side of the connecting end, the first part is used for being connected with a power supply, the third part is arranged at the connecting end and away from one side of the air outlet end and is connected with a first electrical interface, and the third part is arranged at intervals of the connecting end.

2. The pump body mechanism according to claim 1, wherein the third portion includes a connecting section that is connected to the second portion and extends along the second portion toward the pump body, the connecting section being provided with a through hole;

the first electrical interface is convexly arranged at the connecting end and penetrates through the through hole.

3. The pump body mechanism of claim 2, wherein the third portion further comprises an intermediate section and a tail section, the tail section being connected to the connecting section by the intermediate section, the intermediate section extending along the connecting section in a direction away from the pump body, the tail section extending along the intermediate section in a direction toward the second portion, the tail section being spaced from the first electrical interface.

4. The pump body mechanism of claim 3, wherein a distance between the tail section and the first electrical interface is less than a distance between the connecting section and the connecting end.

5. A pump body mechanism according to claim 3, wherein the tail section is disposed substantially parallel to the connecting section.

6. The pump body mechanism of claim 1, wherein the pump body further comprises an outer peripheral portion disposed between the outlet end and the connection end, the outer peripheral portion being metal, the pump body mechanism further comprising an insulating layer disposed between the second portion and the outer peripheral portion.

7. The pump body mechanism of claim 6, wherein the insulating layer is disposed about the outer periphery.

8. The pump body mechanism of claim 1, further comprising:

the shell comprises a first end and a second end which are oppositely arranged, the pump body is arranged in the shell, the air outlet end and the first end are correspondingly arranged, the connecting end and the second end are correspondingly arranged, the first end is provided with an opening, and the opening is exposed out of the first part.

9. An electronic device, comprising:

a housing;

an atomization mechanism mounted on the housing;

the accommodating bottle is arranged on the shell and is connected with the atomizing mechanism; and

a pump body mechanism connected with the atomizing mechanism so that the atomizing mechanism atomizes the liquid in the containing bottle, wherein the pump body mechanism is as claimed in any one of claims 1 to 8.

10. The electronic device of claim 9, wherein the outer surface of the pump body mechanism is provided with a first raised line and a second raised line which are arranged at intervals, the first raised line and the second raised line are arranged along the axial direction of the pump body mechanism, and the widths of the first raised line and the second raised line are different;

the housing is provided with an accommodating cavity for accommodating the pump body, the accommodating cavity comprises a first area corresponding to the first raised line and a second area corresponding to the second raised line, and the widths of the second area and the second area are different.