CN218325219U

CN218325219U - Diaphragm air pump

Info

Publication number: CN218325219U
Application number: CN202221626370.2U
Authority: CN
Inventors: 谭文拯; 邵贤杰
Original assignee: Ningbo Jiayin Electrical And Mechanical Technology Co ltd
Current assignee: Ningbo Jiayin Electrical And Mechanical Technology Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-01-17
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a diaphragm air pump, including diaphragm rocker, main diaphragm and play gas cap, go out the gas cap and lean on main diaphragm to make go out the gas cap and surround and form a plurality of air inlet chambers with main diaphragm, set up each other independently between a plurality of air inlet chambers; the air outlet cover is provided with a plurality of air grooves used for matching with the air inlet cavity, and each air groove is respectively communicated with the corresponding air inlet cavity and the air outlet hole on the air outlet cover; the main diaphragm is provided with a sealing convex part which extends into the air outlet hole and can be abutted and sealed with the hole wall of the air outlet hole so as to enable the vent groove to be conducted in one way. The utility model realizes the one-way conduction of a plurality of vent grooves by the sealing convex part on the main diaphragm, thus leading the diaphragm air pump to have a simplified structure on the basis of meeting the work and being convenient for the integral assembly of the diaphragm air pump; meanwhile, the performance of the diaphragm air pump product is improved, so that the diaphragm air pump can be suitable for preparing products with small volume and large air volume.

Description

Diaphragm air pump

Technical Field

The utility model belongs to the technical field of gas flow control is relevant, especially, relate to a diaphragm air pump.

Background

The air inlet chamber in the diaphragm air pump is generally in one-way communication of air inlet and air outlet through the air inlet check valve and the air outlet check valve, so that when the diaphragm air pump works, the air inlet check valve is opened by utilizing pressure difference, air suction is realized, and then sucked air is discharged from the air outlet check valve, and therefore the purpose of controlling the flow of the air is achieved.

At present, the air outlet one-way valve on the existing diaphragm air pump is usually set as an umbrella valve, the umbrella valve and the air inlet chamber are in one-to-one correspondence, and the one-way conduction of the air outlet position of the diaphragm air pump is realized by utilizing the structural characteristics of the umbrella valve. The umbrella valve structure is applied to the diaphragm air pump, and can meet the use requirements of sealing and one-way conduction of the diaphragm air pump at the air outlet position. However, the air outlet one-way valve is arranged into a plurality of umbrella valves, which not only has a complex structure and is inconvenient for the integral assembly of the diaphragm air pump; moreover, structural and assembly errors are likely to occur in the positions of the various umbrella valves, which can affect the overall product performance of the diaphragm air pump.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a diaphragm air pump for solving the above technical problems.

A diaphragm air pump comprises a diaphragm swing frame, a main diaphragm and an air outlet cover, wherein the air outlet cover is attached to the main diaphragm, so that the air outlet cover and the main diaphragm surround and form a plurality of air inlet chambers which are independent from each other; the main diaphragm is provided with an air hole at the cavity bottom of each air inlet cavity respectively; the diaphragm swing frame is arranged on one side, away from the air outlet cover, of the main diaphragm, and the diaphragm swing frame can extrude the main diaphragm to deform, so that the air inlet cavities can be used for air inlet through the corresponding air holes;

a plurality of vent grooves used for being matched with the air inlet cavity are formed in the air outlet cover, and each vent groove is respectively communicated with the corresponding air inlet cavity and the corresponding air outlet hole in the air outlet cover; and the main diaphragm is provided with a sealing convex part, and the sealing convex part extends into the air outlet and can be abutted and sealed with the hole wall of the air outlet so as to enable the vent groove to be communicated in a one-way manner.

In the application, through the reasonable structural arrangement of the air outlet cover and the main diaphragm, the diaphragm air pump can realize one-way conduction to a plurality of air grooves by using the sealing convex part on the main diaphragm, so that the diaphragm air pump has the effects of simplifying the structure and facilitating the integral assembly of the diaphragm air pump on the basis of meeting the requirement of work; meanwhile, the one-way conduction of the diaphragm air pump is realized by the sealing convex part on the main diaphragm, so that the consistency of respective sealing assembly of a plurality of vent grooves on the diaphragm air pump can be ensured, and further, the function of improving the product performance of the diaphragm air pump is realized, so that the diaphragm air pump can be suitable for preparing products with small volume and large air volume.

In one embodiment, the vent slot has a vent slot opening through which the vent slot communicates with the outlet aperture;

the part of the sealing convex part, which abuts against the vent groove opening, is of a hollow structure, and gas in the air inlet chamber can pass through the vent groove and push the sealing convex part, so that the sealing of the vent groove by the sealing convex part is released.

It can be understood that, by the structural arrangement described above, the structural arrangement in which the sealing convex portion conducts the plurality of vent grooves in one direction is specifically realized.

In one embodiment, the sealing protrusion has a cylindrical outer wall that can abut against a wall of the outlet bore to provide an abutting seal against the plurality of vent slots.

It can be understood that, by the structural arrangement of the circular outer wall, the sealing fit between the sealing convex part and the plurality of vent grooves is realized, and the structure is simplified.

In one embodiment, the plurality of vent grooves are spaced outside the outlet hole in a tangential direction of the cylindrical outer wall.

It can be understood that, through the reasonable position setting of above-mentioned air channel for this diaphragm air pump during operation, can act on cylindrical outer wall and push cylindrical outer wall with tangential direction by the air channel combustion gas and warp, can reduce the deflection of cylindrical outer wall when this diaphragm air pump is given vent to anger like this, and then have the effect that plays the noise reduction.

In one embodiment, the sealing lip is provided as a sleeve structure.

It will be appreciated that the structural arrangement of the sealing lip is embodied by providing the sealing lip as a sleeve structure.

In one embodiment, a support structure is disposed in the sealing protrusion, and the support structure is connected to the main diaphragm and an inner wall of the sealing protrusion, respectively, for supporting the sealing protrusion.

It can be understood that, through the structural arrangement of the support structure, the sealing convex part is supported, and the use requirement that the sealing convex part is abutted and sealed with the hole wall is met.

In one embodiment, the support structure comprises a plurality of connecting ribs, and a plurality of connecting ribs are connected with each other.

It will be appreciated that the structural support member is provided with a plurality of connecting ribs, thereby realizing the structural arrangement of the structural support member, and the plurality of connecting ribs are connected with each other, which has the effect of further improving the structural strength of the structural support member.

In one embodiment, the diaphragm air pump further comprises a driving motor, an eccentric wheel and a connecting shaft, wherein the eccentric wheel is mounted on a rotating shaft part of the driving motor; one side of the connecting shaft is inserted in the eccentric hole of the eccentric wheel, and the other side of the connecting shaft is inserted in the diaphragm swing frame.

It can be understood that through the structural arrangement of the driving motor, the eccentric wheel and the connecting shaft, the diaphragm air pump is driven to extrude the main diaphragm to the diaphragm swing frame when working.

In one embodiment, the diaphragm air pump further comprises a motor base and a diaphragm support, the main diaphragm is mounted on the diaphragm support, and the body part of the driving motor is fixedly mounted on the motor base;

the air outlet cover is connected to the motor base in a buckling mode so as to limit and fix the motor base, the diaphragm support and the air outlet cover.

It can be understood that the use requirement of the diaphragm air pump assembly is met through the motor base and the diaphragm support.

In one embodiment, the motor base is provided with an air inlet hole, and the air inlet hole can be used for introducing air to the area where the main diaphragm is located.

It can be understood that the air inlet hole structure can meet the air inlet use requirement of the diaphragm air pump during operation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an exploded view of a diaphragm air pump provided in one embodiment of the present application;

FIG. 2 is a schematic view of the main diaphragm of the present application;

FIG. 3 is a schematic structural view of the air outlet cover in the present application;

fig. 4 is a schematic structural diagram of a diaphragm support in the present application.

Reference numeral, 10, a membrane swing frame; 20. a main diaphragm; 21. air holes; 22. a sealing protrusion; 221. a cylindrical outer wall; 222. an inner wall; 23. a support structure; 231. connecting ribs; 30. an air outlet cover; 31. a vent channel; 311. a vent slot; 32. an air outlet; 321. a hole wall; 33. a second catching groove; 40. a drive motor; 41. a rotating shaft part; 42. a body portion; 50. an eccentric wheel; 51. an eccentric hole; 60. a connecting shaft; 70. a motor base; 71. a first eye-splice; 72. an air inlet; 80. a membrane support; 81. a first catching groove; 82. a second eye-splice; 101. an air intake chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, a diaphragm air pump according to an embodiment of the present invention includes a diaphragm swing frame 10, a main diaphragm 20, and an air outlet cover 30.

The air outlet cover 30 is attached to the main diaphragm 20, so that the air outlet cover 30 and the main diaphragm 20 surround to form a plurality of air inlet chambers 101, and the air inlet chambers 101 are arranged independently; the main diaphragm 20 is provided with air holes 21 at the bottom of each air inlet chamber 101, and specifically, the air holes 21 may be arranged in a crescent structure; the diaphragm swing frame 10 is disposed on a side of the main diaphragm 20 away from the air outlet cover 30, and the diaphragm swing frame 10 can press the main diaphragm 20 to deform, so that the air inlet chambers 101 can inlet air through the corresponding air holes 21. It should be noted that, the specific structures of the diaphragm swing frame 10 and the main diaphragm 20, and the working principle that the diaphragm swing frame 10 presses the main diaphragm 20 to deform and realize the air intake of the air intake chamber 101, can all adopt the conventional technologies in the prior art, and will not be described herein.

As shown in fig. 3, the outlet cover 30 of the present application is provided with a plurality of vent grooves 31 for matching with the inlet chambers 101, and each vent groove 31 is respectively communicated with the corresponding inlet chamber 101 and the corresponding outlet hole 32 of the outlet cover 30, so that the gas in each inlet chamber 101 can flow to the outlet hole 32 through the corresponding vent groove 31 and be discharged, that is, the exhaust function is achieved.

As shown in fig. 2, the main diaphragm 20 of the present application is provided with a sealing protrusion 22, and the sealing protrusion 22 extends into the air outlet 32 and can be abutted against and sealed with the hole wall 321 of the air outlet 32, so as to make the vent groove 31 conduct in one direction. That is to say, the diaphragm air pump of the present application can use the sealing convex portion 22 on the main diaphragm 20 to function as an air outlet one-way valve, so that the diaphragm air pump has a simplified structure on the basis of meeting the requirements of work, and is convenient for the overall assembly of the diaphragm air pump; meanwhile, the one-way conduction of the diaphragm air pump is realized by the sealing convex part 22 on the main diaphragm 20, so that the consistency of respective sealing assembly of the plurality of air grooves 31 on the diaphragm air pump can be ensured, and the function of improving the product performance of the diaphragm air pump is further realized, so that the diaphragm air pump can be suitable for preparing products with small volume and large air volume.

The vent groove 31 is provided with a vent notch 311, and the vent groove 31 is communicated with the air outlet hole 32 through the vent notch 311; the part of the sealing convex part 22 abutting against the vent slot opening 311 is a hollow structure, and the gas in the air inlet chamber 101 can pass through the vent slot 31 and push the sealing convex part 22, so that the sealing convex part 22 releases the blockage of the vent slot 31, and the structure that the sealing convex part 22 conducts the vent slots 31 in one direction is realized.

The sealing convex part 22 of the present application has the cylindrical outer wall 221, and the cylindrical outer wall 221 can be attached to the hole wall 321 of the air outlet hole 32 to abut against and seal the plurality of vent grooves 31, so that the sealing convex part 22 and the plurality of vent grooves 31 are in sealing fit, and the sealing convex part has the effect of simplifying the structure. Specifically, the sealing protrusion 22 of the present invention seals the plurality of vent grooves 31 by the contact seal between the cylindrical outer wall 221 and the hole wall 321 of the outlet hole 32. Of course, the outer wall of the sealing protrusion 22 for abutting against the hole wall 321 of the air outlet hole 32 is not limited to the illustrated one, and it is obvious to those skilled in the art that the outer wall of the sealing protrusion 22 may be square or other inexpensive shapes, as long as the outer wall of the sealing protrusion 22 can close the plurality of vent grooves 31, and thus, the description thereof will not be provided.

The utility model provides a plurality of air grooves 31 along the tangential direction split of cylindrical outer wall 221 in the outside of venthole 32 for this diaphragm air pump during operation, can act on cylindrical outer wall 221 and push cylindrical outer wall 221 with tangential direction by air groove 31 gas and warp, can reduce the deflection of cylindrical outer wall 221 when this diaphragm air pump is given vent to anger like this, and then have the effect that plays the noise reduction.

In particular, the sealing lip 22 according to the present application is provided as a sleeve structure, whereby the structural arrangement of the sealing lip 22 is embodied.

The sealing convex part 22 of the application is internally provided with the supporting structural part 23, and the supporting structural part 23 is respectively connected with the main diaphragm 20 and the inner wall 222 of the sealing convex part 22 so as to support the sealing convex part 22, so that the use requirements of abutting and sealing the sealing convex part 22 and the hole wall 321 are met.

Specifically, the supporting structure 23 includes a plurality of connecting ribs 231, and the plurality of connecting ribs 231 are connected to each other, so as to realize the structural arrangement of the supporting structure 23, and the plurality of connecting ribs 231 are connected to each other, so as to further improve the structural strength of the supporting structure 23. It should be noted that the number of the connecting ribs 231 on the supporting structural member 23 is specifically four, and of course, the supporting structural member 23 is not limited to the illustrated plurality of connecting ribs 231, and for those skilled in the art, the supporting structural member 23 may be configured as a block-shaped structure, which will not be described herein.

The vent groove 31 of the present application is configured as a slotted structure, wherein the depth of the vent groove 31 gradually increases toward the direction of the sealing convex portion 22, thereby realizing the structural configuration of the vent groove 31.

In addition, the diaphragm air pump of the present application further includes a driving motor 40, an eccentric wheel 50, a connecting shaft 60, a motor base 70 and a diaphragm support 80.

Wherein, the eccentric wheel 50 is installed on the rotating shaft part 41 of the driving motor 40, one side of the connecting shaft 60 is inserted in the eccentric hole 51 of the eccentric wheel 50, and the other side is inserted in the diaphragm swing frame 10, thereby specifically realizing the driving of the diaphragm swing frame 10 to extrude the main diaphragm 20 when the diaphragm air pump works, so that the driving motor 40 can realize the driving of the diaphragm swing frame 10 to extrude the main diaphragm 20 under the transmission of the eccentric wheel 50 and the connecting shaft 60, in the process, by using the eccentric structure of the eccentric wheel 50, the diaphragm swing frame 10 can sequentially extrude each air inlet cavity 101 on the main diaphragm 20, and the explanation is not expanded herein.

Secondly, the main diaphragm 20 is mounted on the diaphragm support 80, and the body part 42 of the driving motor 40 is fixedly mounted on the motor base 70; and, the air outlet cover 30 is connected to the motor base 70 in a buckling manner so as to limit and fix the motor base 70, the diaphragm support 80 and the air outlet cover 30, thereby meeting the use requirement of the assembly of the diaphragm air pump.

As shown in fig. 1 and 4, in order to improve the stability of the assembly among the motor base 70, the diaphragm support 80, and the air outlet cover 30, a plurality of first inserting buckles 71 may be specifically disposed on the motor base 70, a first buckle groove 81 matched with the first inserting buckle 71 is disposed on the diaphragm support 80, and the diaphragm support 80 and the motor base 70 are limited by the cooperation between the first inserting buckles 71 and the first buckle groove 81; and, still be equipped with second eye-splice 82 on the diaphragm support 80, offer the second catching groove 33 that matches in second eye-splice 82 on the air outlet cover 30, carry on spacingly through the cooperation between second eye-splice 82 and the second catching groove 33 between diaphragm support 80 and the air outlet cover 30 to this is convenient for the affirmation of assembly position between motor cabinet 70, diaphragm support 80 and the air outlet cover 30, and has improved the stability when motor cabinet 70, diaphragm support 80 and the air outlet cover 30 three assemble.

The motor base 70 of the application is provided with the air inlet hole 72, and the air inlet hole 72 can be used for air inlet towards the area where the main diaphragm 20 is located, so that the air inlet using requirement of the diaphragm air pump during working is met.

In summary, the sealing convex part 22 on the main diaphragm 20 for the diaphragm air pump realizes the one-way conduction to the plurality of vent grooves 31, so that the diaphragm air pump has the function of simplifying the structure and facilitating the integral assembly of the diaphragm air pump on the basis of meeting the requirement of the work; meanwhile, the one-way conduction of the diaphragm air pump is realized by the sealing convex part 22 on the main diaphragm 20, so that the consistency of respective sealing assembly of the plurality of air grooves 31 on the diaphragm air pump can be ensured, and further, the function of improving the product performance of the diaphragm air pump is realized, so that the diaphragm air pump can be suitable for preparing products with small volume and large air volume.

The features of the above embodiments may be combined arbitrarily, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims

1. A diaphragm air pump comprises a diaphragm swing frame (10), a main diaphragm (20) and an air outlet cover (30), wherein the air outlet cover (30) is attached to the main diaphragm (20), the air outlet cover (30) can surround the main diaphragm (20) to form a plurality of air inlet chambers (101), and the air inlet chambers (101) are mutually independently arranged; wherein, the main diaphragm (20) is provided with air holes (21) at the bottom of each air inlet chamber (101); the diaphragm swing frame (10) is arranged on one side, away from the air outlet cover (30), of the main diaphragm (20), and the diaphragm swing frame (10) can extrude the main diaphragm (20) to deform, so that the air inlet chambers (101) can be used for air inlet through the corresponding air holes (21);

the air outlet cover (30) is provided with a plurality of vent grooves (31) used for matching with the air inlet cavity (101), and each vent groove (31) is respectively communicated with the corresponding air inlet cavity (101) and an air outlet hole (32) on the air outlet cover (30); the main diaphragm (20) is provided with a sealing convex part (22), and the sealing convex part (22) extends into the air outlet hole (32) and can be abutted and sealed with the hole wall (321) of the air outlet hole (32) so as to enable the vent groove (31) to be communicated in a one-way mode.

2. Diaphragm air pump according to claim 1, wherein the vent groove (31) has a vent slot opening (311), the vent groove (31) communicating with the air outlet hole (32) through the vent slot opening (311);

the part of the sealing convex part (22) abutting against the vent notch (311) is provided with a hollow structure, and the gas in the air inlet chamber (101) can pass through the vent groove (31) and push the sealing convex part (22) so as to release the sealing of the vent groove (31) by the sealing convex part (22).

3. Diaphragm air pump according to claim 2, wherein the sealing protrusion (22) has a cylindrical outer wall (221), the cylindrical outer wall (221) being abuttable against the aperture wall (321) for abutting sealing of the plurality of vent slots (31).

4. Diaphragm air pump according to claim 3, wherein a plurality of the vent grooves (31) are spaced outside the air outlet hole (32) in a tangential direction of the cylindrical outer wall (221).

5. A diaphragm air pump according to claim 3, wherein the sealing protrusion (22) is provided as a sleeve structure.

6. Diaphragm air pump according to claim 5, wherein a support structure (23) is provided in the sealing protrusion (22), the support structure (23) being connected to the main diaphragm (20) and the inner wall (222) of the sealing protrusion (22), respectively, for supporting the sealing protrusion (22).

7. Diaphragm air pump according to claim 6, characterized in that the support structure (23) comprises a plurality of connection ribs (231), a plurality of said connection ribs (231) being interconnected between each other.

8. The diaphragm air pump according to claim 1, further comprising a driving motor (40), an eccentric wheel (50) and a connecting shaft (60), wherein the eccentric wheel (50) is mounted on a rotating shaft portion (41) of the driving motor (40); one side of the connecting shaft (60) is inserted in an eccentric hole (51) of the eccentric wheel (50), and the other side of the connecting shaft is inserted in the diaphragm swing frame (10).

9. The diaphragm air pump according to claim 8, further comprising a motor base (70) and a diaphragm support (80), wherein the main diaphragm (20) is mounted on the diaphragm support (80), and the body portion (42) of the driving motor (40) is fixedly mounted on the motor base (70);

the air outlet cover (30) is connected to the motor base (70) in a buckling mode, so that the motor base (70), the diaphragm support (80) and the air outlet cover (30) are limited and fixed.

10. Diaphragm air pump according to claim 9, characterized in that the motor base (70) is provided with an air inlet hole (72), and the air inlet hole (72) can supply air to the area where the main diaphragm (20) is located.