CN219159150U

CN219159150U - Large-pressure low-noise long-service-life miniature air pump

Info

Publication number: CN219159150U
Application number: CN202320157186.6U
Authority: CN
Inventors: 陈敬
Original assignee: Jiangmen Shikang Technology Co ltd
Current assignee: Jiangmen Shikang Technology Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-06-09
Anticipated expiration: 2033-02-08

Abstract

The utility model discloses a high-pressure low-noise long-life miniature air pump, which comprises: the pump body and the driving motor provide working power for the pump body; the pump body includes from top to bottom in proper order: the sealing device comprises an upper cover, a sealing gasket, a valve plate, a rubber diaphragm, a connecting rod and a bottom cover; the upper cover exhaust port and the valve plate air inlet are respectively provided with a structural rib, the structural ribs are provided with outwards-protruding silencing protruding points, the outwards-protruding silencing protruding points are formed on the structural ribs, the sealing gasket is propped against when the sealing gasket deflects, the deflection amplitude of the sealing gasket is reduced, the sealing gasket is contacted with the structural adhesive tape, noise generated when the sealing gasket beats on the structural adhesive tape, the upper cover exhaust port and the valve plate air inlet is eliminated, and the effects of silencing and reducing working jitter are achieved; the sealing gasket service life in the pump body is effectively prolonged, the overall service life of the valve body is further prolonged, the valve can bear larger working pressure through the structural form, and the pump body can meet the working requirement of large pressure.

Description

Large-pressure low-noise long-service-life miniature air pump

Technical Field

The utility model belongs to the technical field of miniature air pumps, and relates to a high-pressure low-noise long-service-life miniature air pump.

Background

The diaphragm air pump is characterized in that a motor provides circular motion, a diaphragm in the air pump is made to do reciprocating motion by a mechanical device, so that air in a pump cavity is compressed and stretched, pressure difference is generated between an air outlet hole or an air inlet and external atmospheric pressure under the action of a one-way valve plate, air pressure is introduced into the air inlet under the action of the pressure difference, and then the air is discharged from the air outlet.

The diaphragm air pump has been well applied in the occasions of large health equipment and instruments, medical equipment and the like. However, the air pump in the prior art has the problem that noise and vibration are large when in operation, taking a one-way valve plate at one side of the air inlet direction as an example, the one-way valve plate is arranged between an upper cover and a valve plate of the air pump, the upper cover and the valve plate are respectively provided with an air inlet, the one-way valve plate is positioned between the two air inlets, and when in exhaust, the one-way valve plate can cover the air inlet of the upper cover to carry out plugging operation, and when in air inlet, the one-way valve plate needs to be opened, so that a valve plate groove larger than the area of the valve plate is arranged at the air inlet position of the valve plate in the prior art, when in air pumping operation of the air pump, the valve plate can be sucked into the valve plate groove, thereby leading the air path between the two air inlets to be conducted, and leading the air to be pumped into the air cavity smoothly; the one-way valve plate at one side of the exhaust direction is similar;

in the continuous high-speed pumping operation process, the valve plate can be continuously pushed into the valve plate groove, so that the valve plate groove is flapped, noise and vibration are generated, the service life of the valve is shortened, the bearing air pressure is reduced, and the pump body cannot meet the high-pressure operation requirement. Therefore, how to solve this technical problem is a technical problem that the person skilled in the art needs to solve urgently.

Disclosure of Invention

In order to solve the technical problems, the utility model adopts the following technical scheme:

a high pressure low noise long life miniature air pump comprising: the pump body and the driving motor provide working power for the pump body;

the pump body includes: the casing and install the pump body subassembly on the casing, pump body subassembly includes from top to bottom in proper order: the sealing device comprises an upper cover, a sealing gasket, a valve plate, a rubber diaphragm, a connecting rod and a bottom cover;

the upper cover is provided with an air inlet pipe for air inlet, an upper cover air inlet connected with one end of the air inlet pipe, an exhaust pipe for exhaust and an upper cover air outlet connected with one end of the exhaust pipe;

the lower end of the valve plate is hollow and molded into a cavity, and the upper end of the rubber diaphragm penetrates into the cavity and is tightly matched with the inner wall of the cavity;

the upper end of the valve plate is provided with an air port communicated with the cavity, a valve plate air inlet communicated with the upper cover air inlet and a valve plate air outlet communicated with the upper cover air outlet respectively;

two valve plates capable of realizing up-down deflection are formed on the sealing gasket, and the two valve plates correspond to the valve plate air inlet and the valve cover air outlet respectively;

the area of the air outlet on the upper cover and the area of the air inlet of the valve plate on the valve plate are larger than the area of the valve plate, and when the valve plate swings towards the valve plate, the valve plate is embedded into the valve plate;

the upper cover exhaust port and the valve plate air inlet are respectively provided with a structural rib, and the structural ribs are provided with outwards-protruding silencing protruding points, and the valve plate is propped against the valve plate when the valve plate deflects through the silencing protruding points.

As a further scheme of the utility model: a double-head pump body structure is adopted; the driving motor is of a double-output-shaft motor structure, a group of pump bodies are respectively installed at two ends of the driving motor, and output shafts at two sides of the driving motor respectively penetrate into a bottom cover of the pump body and are in transmission fit with rubber parts in the pump body through an eccentric wheel structure.

As a further scheme of the utility model: a single-head pump body structure is adopted; the pump body is arranged at the left side or the right side of the driving motor; the output shaft of the driving motor penetrates into the bottom cover of the pump body and is in transmission fit with the rubber diaphragm in the pump body through the eccentric wheel structure.

As a further scheme of the utility model: the upper cover, the valve plate, the connecting rods and the bottom cover all adopt square structures, so that the assembly direction of the upper cover and the valve plate can be variously installed, and the air inlet pipe and the air outlet pipe can be arranged in different directions.

As a further scheme of the utility model: a plurality of mounting nuts for realizing convenient installation of the pump body are preset on the bottom cover.

The utility model has the beneficial effects that: the structure rib is provided with the outwards-protruding silencing convex points, the valve plate is propped against when the valve plate swings, the swing amplitude of the valve plate is reduced, the valve plate is contacted with the structural adhesive tape, the noise generated by the valve plate flapping on the structural adhesive tape, the exhaust port of the upper cover and the air inlet of the valve plate is eliminated, and the effects of silencing and reducing working jitter are realized; the valve block life in the effectual extension pump body, and then improve the whole life of valve body to, make the valve can bear bigger operating pressure through this structural style, and then make the pump body can reach the work demand of high pressure.

Drawings

Fig. 1 is a schematic view of a double-ended pump body structure in the present utility model.

Fig. 2 is a schematic view of a right single-head pump body structure in the present utility model.

Fig. 3 is a schematic view of a left single-head pump body structure in the present utility model.

Fig. 4 is a schematic view of the structure of the present utility model.

Fig. 5 is a schematic view of yet another construction of the present utility model.

Fig. 6 is a schematic structural view of the bottom cover in the present utility model.

Fig. 7 is a schematic structural view of a structural rib and a noise reducing bump according to the present utility model.

Detailed Description

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 should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments, and the present application is not limited by the example embodiments described herein. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a 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 such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model provides a large-pressure low-noise long-life miniature air pump referring to fig. 4-7, in an embodiment of the utility model, comprising: the pump body 2 and the driving motor 1 for providing working power for the pump body 2;

the pump body 2 comprises, in order from top to bottom: upper cover 21, gasket 22, valve plate 23, rubber diaphragm 24, and bottom cover 25;

the valve cover 21 is provided with an air inlet pipe 213 for air inlet, an upper cover air inlet 211 connected with one end of the air inlet pipe 213, an exhaust pipe 214 for exhaust and an upper cover air outlet 212 connected with one end of the exhaust pipe 214;

the lower end of the valve plate 23 is hollow and formed into a cavity, and the upper end of the rubber diaphragm 24 penetrates into the cavity and is tightly matched with the inner wall of the cavity;

the upper end of the valve plate 23 is provided with an air port communicated with the cavity, which is respectively a valve plate air inlet 231 communicated with the upper cover air inlet 211 and a valve plate air outlet 232 communicated with the upper cover air outlet 212;

two valve plates 221 capable of realizing up-down deflection are formed on the sealing gasket 22, and the two valve plates 221 respectively correspond to the valve plate air inlet 231 and the valve cover air outlet 212;

the valve cover exhaust port 212 on the valve cover 21 and the valve plate air inlet 231 on the valve plate 23 have larger air port areas than the valve plate 221, and when the valve plate 221 swings towards the valve plate, the valve plate 221 is embedded into the interior;

when the pump works, the rubber diaphragm 24 is driven by the driving motor 1 to move up and down, and pumping and exhausting actions are realized in the cavity of the valve plate 23;

when in suction, the rubber diaphragm 24 moves downwards to generate suction force, air is sucked into the cavity through the upper cover air inlet 211 and the valve plate air inlet 231 from the air inlet pipe 213, and in the process of suction, the two valve plates 221 on the sealing gasket 22 are simultaneously deflected downwards under the influence of the suction force, wherein the valve plates 221 corresponding to the valve plate air outlet 232 cover the valve plate air outlet 232 to seal the valve plate air outlet 232, so that the air is prevented from being discharged from the air inlet, and the area of the air inlet of the valve plate air inlet 231 is larger than that of the valve plates 221, so that the air is not blocked;

similarly, during the exhaust, the rubber diaphragm 24 moves upward to generate thrust, air is discharged from the air cavity through the valve plate exhaust port 232 and finally discharged through the exhaust pipe 214, and in the exhaust process, the two valve plates 221 on the sealing gasket 22 are deflected upwards under the influence of the thrust, wherein the valve plates 221 corresponding to the upper cover air inlet 211 are covered on the upper cover air inlet 211 to be sealed, so that the air is prevented from being discharged from the air port, and the area of the air port of the upper cover exhaust port 212 is larger than that of the valve plates 221, so that the air port is not blocked;

the upper cover exhaust port 212 and the valve plate air inlet 231 are respectively provided with a structural rib 233, the structural ribs 233 are provided with outwards-protruding silencing protruding points 234, the valve plate 221 is propped against the silencing protruding points 234 when the valve plate 221 deflects, the deflection amplitude of the valve plate 221 is reduced, the valve plate 221 is contacted with the structural adhesive tape, noise generated when the valve plate 221 is flapped on the structural adhesive tape, the upper cover exhaust port 212 and the valve plate air inlet 231 is eliminated, and effects of silencing and reducing working jitter are achieved.

Alternatively, in the present utility model, a double-headed pump body 2 structure (as shown in fig. 1) is adopted; the driving motor 1 is of a double-output-shaft motor structure, a group of pump bodies 2 are respectively installed at two ends of the driving motor 1, and output shafts at two sides of the driving motor 1 respectively penetrate into a bottom cover 25 of the pump body 2 and are in transmission fit with a rubber diaphragm 24 in the pump body 2 through an eccentric wheel structure.

Optionally, in the utility model, a single-head pump body 2 structure is adopted; according to practical requirements, the pump body 2 is arranged at the left side (shown in fig. 3) or the right side (shown in fig. 2) of the driving motor 1; the output shaft of the driving motor 1 penetrates into the bottom cover 25 of the pump body 2 and is in transmission fit with the rubber diaphragm 24 in the pump body 2 through an eccentric wheel structure.

Further, the upper cover 21, the valve plate 23 and the bottom cover 25 all adopt square structures, so that the assembly direction of the upper cover 21 and the valve plate 23 can be variously installed, and the air inlet pipe 213 and the air outlet pipe 214 can be arranged in different directions.

Further, a plurality of mounting nuts 251 for realizing convenient mounting of the pump body 2 are preset on the bottom cover 25, and the convenient mounting direction of the pump body 2 is realized through the preset mounting nuts 251.

It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high pressure low noise long life miniature air pump, comprising: the pump body and the driving motor provide working power for the pump body;

the pump body includes from top to bottom in proper order: the sealing device comprises an upper cover, a sealing gasket, a valve plate, a rubber diaphragm, a connecting rod and a bottom cover;

2. The high-pressure low-noise long-life miniature air pump according to claim 1, wherein a double-head pump body structure is adopted; the driving motor is of a double-output-shaft motor structure, a group of pump bodies are respectively installed at two ends of the driving motor, and output shafts at two sides of the driving motor respectively penetrate into a bottom cover of the pump body and are in transmission fit with rubber parts in the pump body through an eccentric wheel structure.

3. The high-pressure low-noise long-life miniature air pump according to claim 1, wherein a single-head pump body structure is adopted; the pump body is arranged at the left side or the right side of the driving motor; the output shaft of the driving motor penetrates into the bottom cover of the pump body and is in transmission fit with the rubber diaphragm in the pump body through the eccentric wheel structure.

4. The high-pressure low-noise long-life miniature air pump according to claim 1, wherein the upper cover, the valve plate and the bottom cover all adopt square structures, so that the assembly direction of the upper cover and the valve plate can be variously installed, and the air inlet pipe and the air outlet pipe can be arranged in different directions.

5. The high-pressure low-noise long-life miniature air pump of claim 1, wherein a plurality of mounting nuts for realizing convenient mounting of the pump body are pre-arranged on the bottom cover.