Large-flow low-noise air pump

Abstract

The utility model relates to a large-flow low-noise air pump which comprises a base, a leather cup space is arranged on the inner side of the base, a leather cup is arranged in the leather cup space, the base is provided with a surrounding buffer area communicated with the leather cup space, an air inlet cover is arranged on the lower side of the base, the air inlet cover is provided with an air inlet channel, and the air inlet channel is communicated with the leather cup space. The base is provided with a through hole communicated with the air inlet channel, the air inlet channel of the air inlet cover is further provided with an air inlet hole communicated with the outside, the air inlet cover is arranged on the lower side of the base, and then the air inlet channel of the air inlet cover is communicated with the outside, so that air entering the space of the leather cup is firstly buffered and attenuated through the air inlet channel of the air inlet cover. And then buffering attenuation is carried out through the surrounding buffering area of the base, so that the rapid noise of the inlet airflow can be reduced, and the noise of the air pump in the using process can be further reduced through two times of buffering attenuation.

Description

Technical Field

[0001] The utility model relates to the field of pumps, in particular to a large-flow and low-noise air pump. Background Art

[0002] Currently, most high-flow massage lumbar support air pumps on the market generate noise levels exceeding 45 decibels. Their simple, straight-through intake ducts lack effective airflow attenuation. The rapid intake flow emanates through the duct, and the sounds of the leather cup operating and the opening and closing of the intake valve are transmitted, resulting in high pump noise. Existing solutions require a muffler connected to the intake pipe, posing a risk of airtightness, occupying significant space, and incurring additional costs. Utility Model Content

[0003] Based on this, it is necessary to provide a high-flow, low-noise air pump to address the problems in the prior art.

[0004] A large-flow, low-noise air pump, characterized in that it includes a base, a leather cup space is provided on the inner side of the base, the leather cup is arranged in the leather cup space, the base is provided with a surrounding buffer zone connected to the leather cup space, an air intake cover is provided on the lower side of the base, the air intake cover is provided with an air intake channel, the base is provided with a through hole connected to the air intake channel, and the air intake channel of the air intake cover is also provided with an air intake hole connected to the outside world.

[0005] In one embodiment, the air intake cover is further provided with a central hole, and a raised positioning portion is provided on the lower side of the base. The positioning portion is snapped into the position of the central hole, and the positioning portion is flush with the bottom of the air intake cover.

[0006] In one embodiment, a motor is provided on the lower side of the base positioning portion, and the motor is fixed to the base via fasteners. The shaft of the motor passes through the base positioning portion and is connected to the leather cup in the leather cup space.

[0007] In one embodiment, a positioning step is provided on the outer side of the positioning portion, and the positioning step is clamped at the upper side of the air intake cover. An air intake channel is formed between the positioning portion and the inner side wall of the air intake cover, and the air intake hole is located at the air intake channel position.

[0008] In one embodiment, the positioning step is provided with an annular groove, the annular groove is positioned through a sealing ring, and the base is in contact with the air intake cover through the sealing ring.

[0009] In one embodiment, the air inlet and the through hole are located on different sides of the motor or the base.

[0010] In one embodiment, a positioning hole is provided on the lower side of the base, and a positioning column corresponding to the positioning hole is provided on the air intake cover.

[0011] In one embodiment, an annular inner wall is provided on the inner side of the base, and the annular inner wall is spaced apart from the inner wall of the base to form an annular buffer zone between the inner wall of the base and the annular inner wall. The annular inner wall is provided with an inner through hole connected to the leather cup space, and the inner through hole and the through hole are respectively located on both sides of the base.

[0012] In one embodiment, a sealing cover is provided on the upper side of the base, and the sealing cover is used to seal the upper side of the annular buffer zone.

[0013] In one embodiment, a leather cup fixing seat is provided on the upper side of the base, and the leather cup is fixed in the leather cup space through the leather cup fixing seat. An upper cover is provided on the upper side of the leather cup fixing seat, and the upper cover is provided with an air pump outlet hole. A fixing spring is provided on the outer side of the air intake cover, the base, the leather cup fixing seat, and the upper cover. The two ends of the fixing spring are respectively clamped on the bottom of the air intake cover and the top of the upper cover, and are used to fix the air intake cover, the base, the leather cup fixing seat, and the upper cover.

[0014] The above-mentioned large-flow, low-noise air pump is provided with an air intake cover on the lower side of the base, and then connected to the outside world through the air intake channel of the air intake cover. In this way, the air entering the leather cup space is first buffered and attenuated through the air intake channel of the air intake cover, and then buffered and attenuated through the surrounding buffer zone of the base, which can reduce the noise of the rapid intake airflow. After two buffering and attenuation, the noise of the air pump during use can be further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model's large flow and low noise air pump;

[0016] Figure 2 This is a schematic diagram of the exploded structure of the utility model large flow and low noise air pump;

[0017] Figure 3 This is an exploded structural diagram of the utility model's large-flow, low-noise air pump base, air inlet cover, and sealing cover;

[0018] Figure 4 This is a schematic structural diagram of a partial cross-sectional view of the base, air inlet cover, and sealing cover of the utility model high-flow and low-noise air pump;

[0019] Figure 5 This is a structural diagram of the air intake cover of the utility model with large flow and low noise;

[0020] Figure 6 This is a schematic diagram of the structure of the base of the utility model high flow and low noise air pump;

[0021] Among them, 1. Base; 11. Surrounding buffer zone; 12. Through hole; 13. Positioning part; 14. Positioning hole; 15. Annular inner wall; 16. Inner through hole; 2. Air intake cover; 21. Air intake channel; 22. Air intake hole; 23. Middle hole; 24. Positioning column; 3. Motor; 4. Sealing cover; 5. Leather cup fixing seat; 6. Upper cover; 61. Air pump outlet hole; 7. Fixed retaining spring. DETAILED DESCRIPTION

[0022] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only."

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figures 1 to 6 As shown, a large-flow, low-noise air pump is characterized in that it includes a base 1, a leather cup space is provided on the inner side of the base 1, the leather cup is arranged in the leather cup space, the base 1 is provided with a surrounding buffer zone 11 connected to the leather cup space, an air intake cover 2 is provided on the lower side of the base 1, the air intake cover 2 is provided with an air intake channel 21, the base 1 is provided with a through hole 12 connected to the air intake channel 21, and the air intake channel 21 of the air intake cover 2 is also provided with an air intake hole 22 connected to the outside world.

[0026] An air intake cover 2 is provided on the lower side of the base 1, and then the air is connected to the outside world through the air intake channel 21 of the air intake cover 2. In this way, the air entering the leather cup space is first buffered and attenuated by the air intake channel 21 of the air intake cover 2, and then buffered and attenuated by the surrounding buffer zone 11 of the base 1, which can reduce the noise of the rapid intake airflow. After two buffering and attenuation, the noise of the air pump during use can be further reduced.

[0027] Regarding the base 1 and the air intake cover 2, in this embodiment, the air intake cover 2 is further provided with a central hole 23. A raised positioning portion 13 is provided on the underside of the base 1. The positioning portion 13 is engaged with the central hole 23 and is flush with the bottom of the air intake cover 2. The positioning portion 13 of the base 1 is engaged with the central hole 23 of the air intake cover 2, so that the base 1 and the air intake cover 2 form a single unit at the bottom, thereby securing the motor 3 at the bottom.

[0028] Specifically, a motor 3 is provided on the lower side of the positioning portion 13 of the base 1. The motor 3 is fixed to the base 1 via a fastener. The shaft of the motor 3 passes through the positioning portion 13 of the base 1 and is connected to the leather cup in the leather cup space. At this time, a connection hole is provided at the location of the positioning portion 13 of the base 1. The fastener passes through the connection hole and connects to the motor 3, thereby fixing the motor 3 to the base 1. At the same time, the outer diameter of the motor 3 is larger than the diameter of the hollow portion of the air intake cover 2. In this way, after the motor 3 is fixed to the lower side of the base 1, the motor 3 can cover the connection. At this time, the motor 3 can also abut against the lower side of the air intake cover 2, thereby making the air intake cover 2 more firmly fixed.

[0029] After the positioning portion 13 is provided on the base 1, an air intake channel 21 needs to be formed between the base 1 and the air intake cover 2. In this embodiment, a positioning step is provided on the outside of the positioning portion 13. The positioning step is engaged with the upper side of the air intake cover 2. The air intake channel 21 is formed between the positioning portion 13 and the inner sidewall of the air intake cover 2. The air intake hole 22 is located at the position of the air intake channel 21. Under the action of the positioning step, the base 1 and the air intake cover 2 abut at the positioning step position, thereby positioning the base 1 and the air intake cover 2. At the same time, the air intake channel 21 is formed in the gap between the positioning portion 13 and the inner wall of the air intake cover 2. At this time, the air intake hole 22 is located near the sidewall of the air intake cover 2. In this way, the air intake hole 22 can communicate with the air intake channel 21, thereby ensuring normal air intake.

[0030] At the connection point between the air intake cover 2 and the base 1, in order to ensure sealing at the contact point, in this embodiment, the positioning step is provided with an annular groove, through which a sealing ring passes, and the base 1 abuts against the air intake cover 2 through the sealing ring. In this way, after the base 1, air intake cover 2 and motor 3 are fixed, the base 1 and the air intake cover 2 can be sealed, thereby ensuring that the air intake space inside the leather cup of the base 1 can only pass through the air intake space of the air intake cover 2. In this way, during use, other noise caused by the entry of air through the gap between the air intake cover 2 and the base 1 is avoided.

[0031] When air enters the air inlet passage 21, in order to extend the path of the air in the air inlet passage 21, in this embodiment, the air inlet hole 22 and the through hole 12 are located on different sides of the motor 3 or the base 1. Specifically, the air inlet hole 22 and the through hole 12 are located on opposite sides of the motor 3 or the base 1, respectively. This can increase the air movement path in the air inlet passage 21, thereby reducing the air flow rate.

[0032] When installing the base 1 and the air intake cover 2, it is necessary to ensure that the through hole 12 of the base 1 and the air intake hole 22 of the air intake cover 2 are located on both sides of the motor 3 or the base 1. In this way, there are certain requirements for the position between the base 1 and the air intake cover 2. In this embodiment, a positioning hole 14 is provided on the lower side of the base 1, and the air intake cover 2 is provided with a positioning column 24 corresponding to the positioning hole 14. There is one positioning hole 14 and one positioning column 24 respectively. In this way, when installing the base 1 and the air intake cover 2, the positions of the base 1 and the air intake cover 2 are determined, and there is only one. Therefore, during the installation process, the positioning hole 14 and the positioning column 24 are snapped into correspondence, which can ensure that the positions of the base 1 and the air intake cover 2 are correct, that is, the through hole 12 and the air intake hole 22 of the air intake cover 2 are located on both sides of the motor 3 or the base 1.

[0033] The annular buffer zone of the base 1 is also used to slow down the air flow rate. Therefore, in this embodiment, an annular inner sidewall 15 is provided on the inner side of the base 1. The annular inner sidewall 15 is spaced apart from the inner sidewall of the base 1. An annular buffer zone is formed between the inner sidewall of the base 1 and the annular inner sidewall 15. The annular inner sidewall 15 is provided with an inner through hole 16 connected to the leather cup space. The inner through hole 16 and the through hole 12 are respectively located on both sides of the base 1. In order to avoid air leakage, in this embodiment, a sealing cover 4 is provided on the upper side of the base 1. The sealing cover 4 is used to seal the upper side of the annular buffer zone. Under the action of the sealing cover 4, i.e., the annular inner sidewall 15, an annular buffer zone is formed on the inner side of the base 1. The annular buffer zone is connected to the air inlet channel 21 and the leather cup space through the through hole 12 and the inner through hole 16, respectively, so that the leather cup space is connected to the outside world. In this way, during the deformation of the leather cup, the normal air flow can be guaranteed. At the same time,

[0034] Finally, a leather cup fixing seat 5 is provided on the upper side of the base 1, and the leather cup is fixed in the leather cup space by the leather cup fixing seat 5. An upper cover 6 is provided on the upper side of the leather cup fixing seat 5, and the upper cover 6 is provided with an air pump outlet 61. A fixing spring 7 is provided on the outside of the air inlet cover 2, the base 1, the leather cup fixing seat 5, and the upper cover 6. The two ends of the fixing spring 7 are respectively clamped on the bottom of the air inlet cover 2 and the top of the upper cover 6, and are used to fix the air inlet cover 2, the base 1, the leather cup fixing seat 5, and the upper cover 6. Under the action of the fixing spring 7, the air inlet cover 2, the base 1, the leather cup fixing seat 5, and the upper cover 6 are fixed together, thereby fixing the air inlet cover 2, the base 1, the leather cup fixing seat 5, and the upper cover 6 to the motor 3, thereby forming the air pump as a whole. Of course, at this time, the air pump also includes an outlet valve plate, an air inlet valve plate, and other results, all of which adopt the scheme in the existing technology, so they will not be described in detail again.

[0035] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A high flow and low noise air pump, characterized in that: It includes a base, a leather cup space is provided on the inner side of the base, the leather cup is arranged in the leather cup space, the base is provided with a surrounding buffer zone connected to the leather cup space, an air intake cover is provided on the lower side of the base, the air intake cover is provided with an air intake channel, the base is provided with a through hole connected to the air intake channel, and the air intake channel of the air intake cover is also provided with an air intake hole connected to the outside world.

2. The high-flow, low-noise air pump according to claim 1, characterized in that: The air intake cover is also provided with a middle hole, and a raised positioning portion is provided on the lower side of the base. The positioning portion is clamped at the position of the middle hole, and the positioning portion is flush with the bottom of the air intake cover.

3. The high flow and low noise air pump according to claim 2, characterized in that: A motor is provided on the lower side of the base positioning portion, and the motor is fixed to the base through a fastener. The shaft of the motor passes through the base positioning portion and is connected to the leather cup in the leather cup space.

4. The high-flow, low-noise air pump according to claim 3, characterized in that: A positioning step is provided on the outer side of the positioning portion, and the positioning step is clamped on the upper side of the air intake cover. An air intake channel is formed between the positioning portion and the inner side wall of the air intake cover, and the air intake hole is located at the position of the air intake channel.

5. The high-flow, low-noise air pump according to claim 4, characterized in that: The positioning step is provided with an annular groove, the annular groove passes through a sealing ring, and the base abuts against the air intake cover through the sealing ring.

6. The high flow and low noise air pump according to any one of claims 1 to 4, characterized in that: The air inlet hole and the through hole are located at different sides of the motor or the base.

7. The high flow and low noise air pump according to any one of claims 1 to 4, characterized in that: A positioning hole is provided on the lower side of the base, and a positioning column corresponding to the positioning hole is provided on the air intake cover.

8. The high flow and low noise air pump according to any one of claims 1 to 4, characterized in that: An annular inner wall is provided on the inner side of the base, and the annular inner wall is spaced apart from the inner wall of the base to form an annular buffer zone between the inner wall of the base and the annular inner wall. The annular inner wall is provided with an inner through hole connected to the leather cup space, and the inner through hole and the through hole are respectively located on both sides of the base.

9. The high-flow, low-noise air pump according to claim 8, characterized in that: A sealing cover is provided on the upper side of the base, and the sealing cover is used to seal the upper side of the annular buffer zone.

10. The high flow and low noise air pump according to any one of claims 1 to 4, characterized in that: A leather cup fixing seat is provided on the upper side of the base, and the leather cup is fixed in the leather cup space through the leather cup fixing seat. An upper cover is provided on the upper side of the leather cup fixing seat, and the upper cover is provided with an air pump outlet hole. A fixing retaining spring is provided on the outside of the air intake cover, the base, the leather cup fixing seat, and the upper cover. The two ends of the fixing retaining spring are respectively clamped on the bottom of the air intake cover and the top of the upper cover, and are used to fix the air intake cover, the base, the leather cup fixing seat, and the upper cover.

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