Low-noise air pump and integrated pump

Abstract

The utility model discloses a low-noise air pump and an integrated pump, and relates to the technical field of air pumps. Comprising an air pump body and a motor connected with the first end of the air pump body. The air pump body comprises an upper shell assembly, a lower shell assembly and an air pump assembly, and the motor is connected with the lower shell assembly; the upper shell assembly comprises a top shell, a middle shell, a bottom shell and a valve plate arranged between the top shell and the middle shell, a first groove is formed in the side, close to the second end of the air pump body, of the center of the top shell, an air inlet pipe is arranged at one corner, close to the top shell, of the top shell, a second groove is formed in at least the other corner of the top shell, and a first air outlet through hole is formed in the second groove. A plurality of first air inlet through holes are formed in the first groove; the silencing cover is matched with the first groove and is suitable for covering the first groove; according to the technical scheme, noise generated in the working process of the air pump is effectively reduced, and meanwhile the air inlet efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air pumps, and in particular to a low-noise air pump and an integrated pump. Background Art

[0002] An air pump, or "air pump," is a device that removes or adds air from an enclosed space. Air pumps are primarily divided into electric, manual, and foot-operated types. Electric air pumps, powered by electricity, continuously compress air to generate air pressure.

[0003] To reduce noise during air pump operation, existing designs often make the airflow path surround the entire pump body as much as possible. This causes the airflow to travel a longer distance before entering the pump body, affecting air intake efficiency. Without improvements to the airflow path, louder noise will be generated. Utility Model Content

[0004] The purpose of this application is to provide a low-noise air pump and an integrated pump to solve at least one of the above problems.

[0005] In order to solve the above technical problems, the present application provides a low-noise air pump and an integrated pump. In a first aspect, the present application provides a low-noise air pump, comprising an air pump body and a motor connected to a first end portion of the air pump body;

[0006] The air pump body includes an upper shell assembly, a lower shell assembly and an air pump assembly, the motor is connected to the lower shell assembly, and the upper shell assembly and the lower shell assembly cooperate to form an accommodating cavity suitable for accommodating the air pump assembly;

[0007] The upper shell assembly includes a top shell, a middle shell, a bottom shell stacked in sequence, and a valve plate arranged between the top shell and the middle shell;

[0008] A first groove is formed on one side of the center of the top shell near the second end of the air pump body, an air inlet pipe is provided on the top shell near one corner of the top shell, and a second groove is provided at at least another corner, and a first air outlet hole is formed in the second groove;

[0009] A plurality of first air inlet holes are formed in the first groove;

[0010] Also included is a sound-absorbing cover adapted to the first groove and suitable for covering the first groove;

[0011] In the above implementation process, a number of first air intake holes are set on the top shell in this solution, that is, when the airflow enters the air pump body, there is no need to design a complicated airflow surround channel like the traditional air pump, which effectively simplifies the design difficulty and improves the air intake efficiency. In response to the noise problem generated in the process, this solution covers the first groove with a silencer cover, which can effectively slow down the sound generated during the air intake process, thereby reducing the noise while ensuring the air intake efficiency.

[0012] Preferably, the air inlet pipe forms a pressure relief hole, and an internal thread is formed in the pressure relief hole;

[0013] A silent pressure relief valve is provided in the pressure relief hole;

[0014] In the above implementation process, the silent pressure relief valve can be understood as a one-way valve, which can reduce the generation of noise when releasing pressure. Therefore, it can effectively control the generation of noise while improving the intake efficiency.

[0015] Preferably, the first groove is hexagonal, and a plurality of the first air inlet holes are arranged at equal angles around the center of the first groove;

[0016] In the above implementation process, the present solution provides a plurality of first air intake holes to improve air intake efficiency, and the plurality of first air intake holes are distributed at equal angles to ensure uniformity of air intake.

[0017] Preferably, an arc-shaped protrusion is formed on the side wall of the first groove at a position corresponding to the first air inlet hole;

[0018] An arc-shaped groove adapted to the arc-shaped protrusion is formed on the muffler cover;

[0019] In the above implementation process, the arc-shaped protrusion cooperates with the arc-shaped groove to achieve stable covering of the silencer cover, thereby improving the assembly stability of the silencer cover, without the need for other fixing parts to achieve fixation, thereby improving assembly convenience.

[0020] Preferably, a third groove adapted to the valve plate is formed on the middle shell;

[0021] A first vent hole and a second vent hole are formed in the third groove, a third vent hole is formed on the middle shell, and a fourth vent hole, a fifth vent hole and a sixth vent hole are formed on the valve plate;

[0022] A sealing ridge is formed on one side of the top shell close to the valve plate, and the sealing ridge abuts against the valve plate to form a first cavity, a second cavity and a third cavity;

[0023] A cavity block is formed on the top shell, the cavity block forms a fourth cavity, and a seventh vent hole and an eighth vent hole are formed on the cavity block;

[0024] The first vent hole, the fourth vent hole and the seventh vent hole are aligned, and a first membrane is formed on the fourth vent hole and is suitable for abutting against the seventh vent hole;

[0025] The second vent hole, the fifth vent hole and the first air outlet vent hole are connected, and a second diaphragm suitable for abutting against the second vent hole is formed on the fifth vent hole;

[0026] The first air inlet hole is connected to the fourth cavity, the seventh air hole is connected to the third cavity and the fourth cavity, and the eighth air hole is connected to the first cavity and the fourth cavity;

[0027] The third vent is connected to the sixth vent, and the sixth vent is connected to the second cavity;

[0028] In the above implementation process, when the motor starts, it will drive the air pump assembly to work, and the operation of the air pump assembly will form an air pressure difference. Air enters the air pump body from multiple first air inlet holes, enters the fourth cavity, and further enters the first cavity through the eighth hole or enters the third cavity through the seventh hole. The airflow in the third cavity passes through the fourth air hole on the valve plate, and further enters the space of the bottom shell through the first air hole on the middle shell. The airflow in the first cavity can be introduced through the sixth air hole and the third air hole; and when the airflow is discharged, the airflow passes through the second air hole on the middle shell, and then passes through the fifth air hole on the valve plate, and finally is discharged through the first air outlet hole on the top shell; in this process, the first diaphragm and the second diaphragm play the role of unidirectional conduction, thereby making the airflow flow stably in a fixed direction.

[0029] Preferably, the air pump assembly includes an air bag bowl and a rotating bracket, the air bag bowl is provided on the rotating bracket, and the rotating bracket is connected to the driving end of the motor;

[0030] In the above implementation process, the driving end of the motor drives the rotating bracket to rotate. When the rotating bracket rotates, it drives multiple airbag bowls to pull and pull in sequence, thereby realizing air pressure changes and promoting air flow.

[0031] Preferably, a circular opening is formed on the bottom shell, the airbag bowl port is arranged on the circular opening, and the circular opening is communicated with the first vent hole and the second vent hole.

[0032] In a second aspect, the present application provides an integrated pump, comprising a control valve and a low-noise air pump as described above, wherein the control valve is provided at an end of the air pump body away from the motor and connected to the first air outlet hole;

[0033] In the above implementation process, the control valve in this solution is arranged on the main body of the pump body and can be connected to the first air outlet hole to achieve regulation and control of the air outlet.

[0034] Preferably, a snap-fit ​​platform is provided on the outer wall of the housing assembly; and an outer shell is further included, the outer shell being formed with an accommodating groove suitable for accommodating the control valve, and a snap-fit ​​groove adapted to the snap-fit ​​platform is provided on the side wall of the outer shell.

[0035] In the above implementation process, the outer shell can protect the control valve, and at the same time, the fast assembly of the two can be achieved through the cooperation of the buckle platform and the card slot, with a simple structure and quick and easy assembly.

[0036] Compared with the prior art, the beneficial effect of the present application is that: in this solution, a number of first air intake holes are provided on the top shell, that is, when the airflow enters the air pump body, there is no need to design a complex airflow surround channel like a traditional air pump, which effectively simplifies the design difficulty and improves the air intake efficiency. In response to the noise problem generated in the process, the present solution provides a silencer cover on the first groove, which can effectively slow down the sound generated during the air intake process, thereby reducing the noise while ensuring the air intake efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0038] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present application;

[0039] Figure 2 This is a schematic diagram of the explosion structure of one embodiment of the present application;

[0040] Figure 3 This is a schematic diagram of a partial explosion structure of one embodiment of the present application;

[0041] Figure 4 This is a schematic diagram of a partial explosion structure of one embodiment of the present application;

[0042] Figure 5 This is a schematic structural diagram of a top shell according to one embodiment of the present application;

[0043] Figure 6 This is a schematic structural diagram of a top shell according to one embodiment of the present application;

[0044] Figure 7This is a schematic structural diagram of a top shell according to one embodiment of the present application;

[0045] Figure 8 This is a schematic structural diagram of a valve plate according to one embodiment of the present application;

[0046] Figure 9 This is a schematic structural diagram of a middle shell in one embodiment of the present application;

[0047] Among them: 10, air pump body; 20, motor; 30, outer shell; 31, slot; 32, buckle platform; 40, upper shell assembly; 41, top shell; 411, first groove; 4111, first air inlet hole; 4112, arc-shaped protrusion; 412, second groove; 4121, first air outlet hole; 413, air inlet pipe; 4131, pressure relief hole; 4132, internal thread; 4133, silent pressure relief valve; 414, sealing ridge; 415, cavity block; 416, seventh vent hole; 417, eighth vent hole; 42, middle shell; 421, The third groove; 422, the first air vent; 423, the second air vent; 424, the third air vent; 43, the bottom shell; 431, the round mouth; 44, the valve plate; 441, the fourth air vent; 4411, the first diaphragm; 442, the fifth air vent; 4421, the second diaphragm; 443, the sixth air vent; 45, the silencer cover; 451, the arc-shaped groove; 51, the first cavity; 52, the second cavity; 53, the third cavity; 60, the retaining spring; 61, the retaining groove; 70, the air pump assembly; 71, the air bag bowl; 72, the lower shell assembly; 80, the control valve. DETAILED DESCRIPTION

[0048] The following diagrams illustrate various embodiments of the present application. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present application. In other words, in some embodiments of the present application, these practical details are not essential. Furthermore, to simplify the drawings, some conventional structures and components are depicted in a simplified schematic manner.

[0049] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0050] In addition, in this application, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or ranking, nor are they used to limit this application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0051] In order to further understand the content, features and effects of the utility model of the present application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0052] Example

[0053] To reduce noise during air pump operation, existing designs often arrange the airflow channel to surround the entire pump body as much as possible. This causes the airflow to travel a longer distance when entering the pump body, affecting air intake efficiency. Without improvements to the airflow channel, louder noise would be generated. To address the aforementioned technical issues, this embodiment provides the following technical solutions:

[0054] For details, see Figure 1-9 , this embodiment provides a low-noise air pump, including an air pump body 10 and a motor 20 connected to a first end portion of the air pump body 10;

[0055] Furthermore, the air pump body 10 includes an upper housing assembly 40, a lower housing assembly 72 and an air pump assembly 70, the motor 20 is connected to the lower housing assembly 72, and the upper housing assembly 40 and the lower housing assembly 72 cooperate to form an accommodating cavity suitable for accommodating the air pump assembly 70;

[0056] For details, see Figure 2-3 The upper shell assembly 40 includes a top shell 41, a middle shell 42, a bottom shell 43 stacked in sequence, and a valve plate 44 provided between the top shell 41 and the middle shell 42;

[0057] For details, see Figure 4-5 A first groove 411 is formed on one side of the center of the top shell 41 near the second end of the air pump body 10, an air inlet pipe 413 is provided on the top shell 41 near one corner of the top shell 41, and a second groove 412 is provided at at least another corner, and a first air outlet hole 4121 is formed in the second groove 412;

[0058] It can be understood that the first end and the second end are two opposite ends of the pump body;

[0059] Specifically, a plurality of first air inlet holes 4111 are formed in the first groove 411;

[0060] Furthermore, it also includes a silencer cover 45 adapted to the first groove 411 and suitable for covering the first groove 411;

[0061] In the above scheme, a plurality of first air inlet holes 4111 are provided on the top shell 41 in this scheme, that is, when the airflow enters the air pump body, there is no need for a complicated airflow surround channel designed like a traditional air pump, which effectively simplifies the design difficulty and improves the air intake efficiency. In response to the noise problem generated in the process, this scheme provides a silencer cover 45 on the first groove 411, which can effectively slow down the sound generated during the air intake process, thereby reducing the noise generation while ensuring the air intake efficiency.

[0062] In some embodiments, the sound-absorbing cover 45 may be made of a rubber material or a position-limiting fiber material that can achieve sound absorption.

[0063] For details, see Figure 4-5 The air inlet pipe 413 forms a pressure relief hole 4131 , and an internal thread 4132 is formed in the pressure relief hole 4131 ;

[0064] Furthermore, a silent pressure relief valve 4133 is provided in the pressure relief hole 4131;

[0065] In the above solution, the silent pressure relief valve 4133 can be understood as a one-way valve, which can reduce the generation of noise when releasing pressure, thereby effectively controlling the generation of noise while improving the intake efficiency.

[0066] It is understandable that the internal thread 4132 is used to cooperate with the silent pressure relief valve 4133 to achieve fixed installation of the silent pressure relief valve 4133.

[0067] Specifically, in one embodiment, the first groove 411 is hexagonal; it is understandable that the first groove 411 may also be in other shapes;

[0068] Furthermore, a plurality of first air inlet holes 4111 are arranged at equal angles around the center of the first groove 411;

[0069] In the above solution, the provision of multiple first air intake holes 4111 in this solution can improve the air intake efficiency, and the multiple first air intake holes 4111 are distributed at equal angles to ensure the uniformity of the air intake.

[0070] Specifically, an arc-shaped protrusion 4112 is formed on the side wall of the first groove 411 at a position corresponding to the first air inlet hole 4111;

[0071] Furthermore, an arc-shaped groove 451 is formed on the muffler cover 45 to fit with the arc-shaped protrusion 4112;

[0072] In the above solution, the arc-shaped protrusion 4112 cooperates with the arc-shaped groove 451 to achieve stable covering of the silencer cover 45, thereby improving the assembly stability of the silencer cover 45 without the need for other fixing parts to achieve fixation, thereby improving assembly convenience.

[0073] For details, see Figure 9 A third groove 421 adapted to the valve plate 44 is formed on the middle shell 42;

[0074] Furthermore, a first vent hole 422 and a second vent hole 423 are formed in the third groove 421 , and a third vent hole 424 is formed on the middle shell 42 ;

[0075] For details, see Figure 8 A fourth vent hole 441 , a fifth vent hole 442 and a sixth vent hole 443 are formed on the valve plate 44 ;

[0076] For details, see Figure 6-7 A sealing ridge 414 is formed on one side of the top shell 41 close to the valve disc 44. The sealing ridge 414 abuts against the valve disc 44 to form a first cavity 51, a second cavity 52 and a third cavity 53.

[0077] Furthermore, a cavity block 415 is formed on the top shell 41 , the cavity block 415 forms a fourth cavity, and a seventh vent hole 416 and an eighth vent hole 417 are formed on the cavity block 415 ;

[0078] Specifically, the first vent hole 422 , the fourth vent hole 441 and the seventh vent hole are aligned, and a first membrane 4411 suitable for abutting against the seventh vent hole 416 is formed on the fourth vent hole 441 ;

[0079] Specifically, the second vent hole 423, the fifth vent hole 442 and the first air outlet hole 4121 are connected, and a second diaphragm 4421 suitable for abutting against the second vent hole 423 is formed on the fifth vent hole 442;

[0080] Furthermore, the first air inlet hole 4111 is connected to the fourth cavity, the seventh air hole is connected to the third cavity 53 and the fourth cavity, and the eighth air hole 417 is connected to the first cavity and the fourth cavity;

[0081] Specifically, the third vent hole is connected to the sixth vent hole, and the sixth vent hole is connected to the second cavity;

[0082] In the above scheme, when the motor 20 is started, it will drive the air pump assembly 70 to work. The operation of the air pump assembly 70 forms an air pressure difference. Air enters the air pump body 10 from the multiple first air inlet holes 4111, enters the fourth cavity, and further enters the first cavity through the eighth hole or enters the third cavity through the seventh hole. The airflow in the third cavity passes through the fourth air hole 441 on the valve plate 44, and further enters the space of the bottom shell 43 through the first air hole 422 on the middle shell 42. The airflow in the first cavity can be introduced through the sixth air hole and the third air hole; and when the airflow is discharged, the airflow passes through the second air hole 423 on the middle shell 42, and then passes through the fifth air hole 442 on the valve plate 44, and finally is discharged through the first air outlet hole 4121 on the top shell 41; in this process, the first diaphragm 4411 and the second diaphragm 4421 play the role of unidirectional conduction, thereby making the airflow flow stably in a fixed direction.

[0083] It is understandable that the number of the first ventilation hole 422 to the eighth ventilation hole 417 mentioned above can be multiple.

[0084] Specifically, the air pump assembly 70 includes an air bag bowl 71 and a rotating bracket (not shown in the figure). The air bag bowl 71 is provided on the rotating bracket, and the rotating bracket is connected to the driving end of the motor 20;

[0085] In the above solution, the driving end of the motor 20 drives the rotating bracket to rotate, and the rotating bracket drives the multiple airbag bowls 71 to pull and pull in sequence during rotation, thereby realizing air pressure changes and promoting air flow.

[0086] It should be noted that the above is only a partial implementation of the air pump assembly 70. In the field of air pumps, the air pump assembly 70 is a relatively mature technology in the existing technology. Therefore, this solution will not further elaborate on its specific structure and working principle, and it does not affect the technical personnel in this field to understand the overall solution.

[0087] Specifically, a circular opening 431 is formed on the bottom shell 43 , and a port of the airbag bowl 71 is disposed on the circular opening 431 , and the circular opening 431 is communicated with the first vent hole and the second vent hole.

[0088] This embodiment also provides an integrated pump, comprising a control valve 80 and any of the above-described low-noise air pumps, wherein the control valve 80 is disposed at one end of the air pump body away from the motor 20 and connected to the first air outlet hole 4121;

[0089] In the above solution, the control valve 80 in this solution is provided on the main body of the pump body and can be connected to the first air outlet hole 4121 to achieve regulation and control of the air outlet.

[0090] For details, see Figure 1-2A snap-fit ​​platform 32 is provided on the outer wall of the shell assembly; it also includes an outer shell 30, which is formed with an accommodating groove suitable for accommodating the control valve 80, and a snap-fit ​​groove 31 adapted to the snap-fit ​​platform 32 is provided on the side wall of the outer shell 30.

[0091] In the above solution, the outer shell 30 can protect the control valve 80 , and simultaneously the fastening platform 32 and the snap groove 31 can be used to cooperate to achieve quick assembly of the two, resulting in a simple structure and quick and easy assembly.

[0092] Specifically, the upper housing assembly 40 and the lower housing assembly 72 can be fixed together by a snap ring or by fastening screws. In one embodiment, a retaining groove 61 is formed on the outer wall of the upper housing assembly 40 and the lower housing assembly 72, and a retaining spring 60 can be snapped into the retaining groove 61 to connect and fix the two.

[0093] The above description is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application fall within the scope of the technical solution of the present application.

Claims

1. A low-noise air pump, characterized in that: It includes an air pump body and a motor connected to a first end portion of the air pump body; The air pump body includes an upper shell assembly, a lower shell assembly and an air pump assembly, the motor is connected to the lower shell assembly, and the upper shell assembly and the lower shell assembly cooperate to form an accommodating cavity suitable for accommodating the air pump assembly; The upper shell assembly includes a top shell, a middle shell, a bottom shell stacked in sequence, and a valve plate arranged between the top shell and the middle shell; A first groove is formed on one side of the center of the top shell near the second end of the air pump body, an air inlet pipe is provided on the top shell near one corner of the top shell, and a second groove is provided at at least another corner, and a first air outlet hole is formed in the second groove; A plurality of first air inlet holes are formed in the first groove; It also includes a sound-absorbing cover adapted to the first groove and suitable for covering the first groove.

2. The low-noise air pump according to claim 1, characterized in that: The air inlet pipe is formed with a pressure relief hole, and an internal thread is formed in the pressure relief hole; A silent pressure relief valve is provided in the pressure relief hole.

3. The low-noise air pump according to claim 1, characterized in that: The first groove is hexagonal, and a plurality of the first air inlet holes are arranged at equal angles around the center of the first groove.

4. The low-noise air pump according to claim 3, characterized in that: An arc-shaped protrusion is formed on the side wall of the first groove at a position corresponding to the first air inlet hole; An arc-shaped groove adapted to the arc-shaped protrusion is formed on the muffler cover.

5. The low-noise air pump according to any one of claims 1 to 4, characterized in that: A third groove adapted to the valve plate is formed on the middle shell; A first vent hole and a second vent hole are formed in the third groove, a third vent hole is formed on the middle shell, and a fourth vent hole, a fifth vent hole and a sixth vent hole are formed on the valve plate; A sealing ridge is formed on one side of the top shell close to the valve plate, and the sealing ridge abuts against the valve plate to form a first cavity, a second cavity and a third cavity; A cavity block is formed on the top shell, the cavity block forms a fourth cavity, and a seventh vent hole and an eighth vent hole are formed on the cavity block; The first vent hole, the fourth vent hole and the seventh vent hole are aligned, and a first membrane is formed on the fourth vent hole and is suitable for abutting against the seventh vent hole; The second vent hole, the fifth vent hole and the first air outlet vent hole are connected, and a second diaphragm suitable for abutting against the second vent hole is formed on the fifth vent hole; The first air inlet hole is connected to the fourth cavity, the seventh air hole is connected to the third cavity and the fourth cavity, and the eighth air hole is connected to the first cavity and the fourth cavity; The third vent hole is connected to the sixth vent hole, and the sixth vent hole is connected to the second cavity.

6. The low-noise air pump according to claim 5, characterized in that: The air pump assembly includes an air bag bowl and a rotating bracket. The air bag bowl is arranged on the rotating bracket, and the rotating bracket is connected to the driving end of the motor.

7. The low-noise air pump according to claim 6, characterized in that: A circular opening is formed on the bottom shell, the air bag bowl port is arranged on the circular opening, and the circular opening is communicated with the first vent hole and the second vent hole.

8. An integrated pump, characterized in that: It comprises a control valve and the low-noise air pump according to any one of claims 1 to 7, wherein the control valve is arranged at one end of the air pump body away from the motor and connected to the first air outlet hole.

9. The integrated pump according to claim 8, characterized in that: A snap-fit ​​platform is provided on the outer wall of the housing assembly; and an outer shell is further provided, wherein the outer shell is formed with an accommodating groove suitable for accommodating the control valve, and a snap-fit ​​groove adapted to the snap-fit ​​platform is provided on the side wall of the outer shell.

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