Low-noise internal pressure relief massage waist support air pump

Abstract

The utility model discloses a low noise internal pressure relief massage waist support air pump which comprises a base, a leather cup fixing seat, a valve plate fixing seat and an upper cover which are sequentially assembled from bottom to top, a leather cup piston is pressed and fixed between the leather cup fixing seat and the valve plate fixing seat, the base is connected with a driving piece, the driving piece is connected with the leather cup piston through a swing assembly, and the base is provided with an air inlet nozzle. The upper cover is provided with an air outlet nozzle, the valve plate fixing seat is provided with a pressure relief channel, one end of the pressure relief channel is a pressure relief air outlet, a pressure relief hole site is formed in the other end of the pressure relief channel, and an inner relief assembly is arranged at the pressure relief hole site. According to the low-noise internal pressure relief massage waist support air pump, pressure relief airflow and noise can be absorbed in the air pump through the internal pressure relief assembly, so that the noise is effectively reduced, noise reduction cotton and a pressure adjusting cap do not need to be added to the internal pressure relief assembly, the manufacturing cost can be reduced, meanwhile, the internal pressure relief assembly is arranged at the pressure relief hole position, and the noise reduction effect is good. Resonance between the inner leakage assembly and the upper cover during frequency vibration can be avoided, so that the purpose of noise reduction and shock absorption is achieved.

Description

Technical Field

[0001] This utility model relates to the field of air pump technology, and in particular to a low-noise internal pressure relief massage lumbar support air pump. Background Technology

[0002] An air pump is a device that removes or adds air from a closed space. It is widely used in aerospace, automotive, shipbuilding, pressure testing, and medical device industries.

[0003] Currently, in commercially available pressure relief pumps, the pressure relief device is installed on the top cover of the pump, and the pressure relief airflow is directly discharged outwards. Therefore, the pressure relief airflow is relatively rapid, resulting in loud noise. To address this, manufacturers have added sound-absorbing cotton and spiral pressure regulating caps to the pressure relief device to reduce the noise generated by the pressure relief airflow, as illustrated in Chinese Patent: 2022223982955. However, this design increases the cost of the pump. Furthermore, because the pressure relief device is installed on the top cover of the pump, the frequency vibration of the device resonates with the top cover during pressure relief, causing a hollow sound similar to a drum. Therefore, improvements are needed to the existing pressure relief pump technology. Utility Model Content

[0004] The purpose of this invention is to provide a low-noise, internally depressurized massage lumbar support air pump that saves costs, reduces noise and vibration.

[0005] To solve the above technical problems, the present invention can be implemented using the following technical solutions:

[0006] A low-noise internal pressure relief massage lumbar support air pump includes a base, a leather cup fixing seat, a valve plate fixing seat, and a top cover, which are assembled sequentially from bottom to top. A leather cup piston is pressurized between the leather cup fixing seat and the valve plate fixing seat. The base is connected to a driving component, and the driving component is connected to the leather cup piston through a swing assembly. The base is provided with an air inlet, and the top cover is provided with an air outlet. The valve plate fixing seat has a pressure relief channel. One end of the pressure relief channel is a pressure relief exhaust port, and the other end forms a pressure relief hole. An internal pressure relief component is provided at the pressure relief hole.

[0007] In one embodiment, a diaphragm block is pressed between the valve plate fixing seat and the upper cover, and the diaphragm block is stacked on the valve plate fixing seat, with a pressure relief through hole corresponding to the pressure relief hole position in the middle of the diaphragm block.

[0008] In one embodiment, the internal leakage assembly includes a guide rod and a spring. One end of the guide rod is movably disposed in the middle of the cup fixing seat, and the other end has a sealing part. The spring is sleeved on the guide rod, and its two ends abut against the cup fixing seat and the sealing part, respectively. The sealing part can be driven to pass through the pressure relief hole to seal the pressure relief through hole by the elastic force of the spring itself.

[0009] In one embodiment, the internal leakage assembly includes a guide rod and a spring. One end of the guide rod is movably disposed in the middle of the cup fixing seat, and the other end has a sealing part, on which an elastic valve plug is sleeved. The spring is sleeved on the guide rod, and its two ends abut against the cup fixing seat and the sealing part, respectively. The elastic valve plug can be driven to seal the pressure relief hole by the elastic force of the spring itself.

[0010] In one embodiment, the valve plate mounting seat is provided with a mounting hole, an air inlet, and an air outlet. The air inlet is located at the edge of the mounting hole, and an air inlet valve plate is provided inside the mounting hole. The air inlet valve plate can block the air inlet.

[0011] In one embodiment, the diaphragm block is provided with an exhaust valve plate, which can block the exhaust port.

[0012] In one embodiment, the cup holder is provided with an airflow channel one, the valve plate holder is provided with an airflow channel two, the diaphragm block is provided with an airflow hole, the air inlet, airflow channel one, airflow channel two and the airflow hole are connected in sequence, and the pressure relief exhaust port is connected to airflow channel two.

[0013] In one embodiment, the oscillating assembly includes an eccentric wheel, a rotating shaft, and a swing arm. The eccentric wheel is connected to a drive member, one end of the rotating shaft is connected to the eccentric wheel, and the other end is connected to the swing arm. The swing arm is connected to a piston cup. The drive member drives the eccentric wheel to rotate, thereby driving the swing arm to oscillate.

[0014] In one embodiment, the base, the cup holder, the cup piston, the valve plate holder, the diaphragm block, and the top cover are assembled in sequence and then secured by a snap ring.

[0015] In one embodiment, the drive component is a motor, which is fixedly connected to the bottom of the base with screws. Beneficial effects

[0016] This utility model relates to a low-noise internal pressure relief massage waist support air pump. A pressure relief channel is opened on the valve plate fixing seat. One end of the pressure relief channel forms a pressure relief exhaust port, and the other end forms a pressure relief hole. An internal pressure relief component is set at the pressure relief hole. The internal pressure relief component allows the pressure relief airflow and noise to be absorbed inside the air pump, thereby effectively reducing noise. Moreover, the internal pressure relief component does not require the addition of sound-absorbing cotton and pressure regulating cap, which can reduce the manufacturing cost of the air pump. At the same time, because the internal pressure relief component is set at the pressure relief hole, resonance between the internal pressure relief component and the upper cover can be avoided when the internal pressure relief component vibrates at a certain frequency, thereby achieving the purpose of noise reduction and vibration reduction. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of Embodiment 1 of the low-noise internal pressure relief massage waist support air pump of this utility model;

[0018] Figure 2 This is an exploded view of Embodiment 1 of the low-noise internal pressure relief massage waist support air pump of this utility model;

[0019] Figure 3 This is an assembly diagram of the internal leakage component, valve plate fixing seat, leather cup fixing seat, leather cup piston, diaphragm block and top cover of the low-noise internal pressure relief massage waist support air pump of this utility model embodiment 1;

[0020] Figure 4 This is an exploded view of the internal leakage component, valve plate fixing seat, leather cup fixing seat, leather cup piston, diaphragm block and top cover of the low-noise internal pressure relief massage waist support air pump of this utility model embodiment 1;

[0021] Figure 5 This is a schematic diagram of the valve plate fixing seat of Embodiment 1 of the low-noise internal pressure relief massage waist support air pump of this utility model;

[0022] Figure 6 This is a schematic diagram of the diaphragm block in Embodiment 1 of the low-noise internal pressure relief massage waist support air pump of this utility model;

[0023] Figure 7 This is a schematic diagram of the normal state of Embodiment 1 of the low-noise internal pressure relief massage waist support air pump of this utility model;

[0024] Figure 8 This is a schematic diagram of the depressurization state of the low-noise internal pressure relief massage waist support air pump of this utility model (Example 1).

[0025] Figure 9 This is an assembly diagram of the internal leakage component, valve plate fixing seat, leather cup fixing seat, leather cup piston, diaphragm block and top cover of the low-noise internal pressure relief massage waist support air pump embodiment 2 of this utility model;

[0026] Figure 10 This is an exploded view of the internal leakage component, valve plate fixing seat, leather cup fixing seat, leather cup piston, diaphragm block and top cover of the low-noise internal pressure relief massage waist support air pump embodiment 2 of this utility model;

[0027] Figure 11 This is a schematic diagram of the valve plate fixing seat of Embodiment 2 of the low-noise internal pressure relief massage waist support air pump of this utility model.

[0028] As shown in the attached diagram:

[0029] 100. Base; 110. Air inlet;

[0030] 200. Leather cup fixing base; 210. Airflow channel one;

[0031] 300, Valve plate fixing seat; 310, Pressure relief channel; 311, Pressure relief hole position; 312, Pressure relief exhaust port; 320, Mounting hole; 330, Air inlet; 340, Air outlet; 350, Air inlet valve plate; 360, Airflow channel two;

[0032] 400. Top cover; 410. Air vent;

[0033] 500, Leather cup piston;

[0034] 600. Drive components;

[0035] 700, Oscillating assembly; 710, Eccentric wheel; 720, Rotating shaft; 730, Swing arm;

[0036] 800, Internal leakage assembly; 810, Guide rod; 811, Sealing part; 820, Spring; 830, Resilient valve plug;

[0037] 900. Diaphragm block; 910. Pressure relief port; 920. Air outlet valve; 930. Airflow port;

[0038] 1000, snap ring. Detailed Implementation

[0039] 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.

[0040] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0041] Unless otherwise defined, 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 pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1

[0042] Please see Figures 1 to 8 A low-noise internal pressure relief massage waist support air pump includes a base 100, a leather cup fixing seat 200, a valve plate fixing seat 300, and a top cover 400 assembled sequentially from bottom to top. A leather cup piston 500 is pressed between the leather cup fixing seat 200 and the valve plate fixing seat 300. The base 100 is connected to a driving component 600, and the driving component 600 is connected to the leather cup piston 500 through a swing assembly 700. The base 100 is provided with an air inlet 110, and the top cover 400 is provided with an air outlet 410. The valve plate fixing seat 300 is provided with a pressure relief channel 310. One end of the pressure relief channel 310 is a pressure relief exhaust port 312, and the other end forms a pressure relief hole 311. An internal pressure relief component 800 is provided at the pressure relief hole 311.

[0043] Specifically, in this embodiment, a pressure relief channel 310 is formed on the valve plate fixing seat 300, and a pressure relief hole 311 is formed at one end of the pressure relief channel 310. An internal venting component 800 is set at the pressure relief hole 311. When the air pump is working, air is introduced through the air inlet 110 of the base 100 and discharged through the air outlet 410 of the upper cover 400. When the pressure at the air outlet 410 is greater than a set threshold, the gas will push the internal venting component 800 from the pressure relief hole 311, thereby opening the pressure relief hole 311. The pressure relief airflow then depressurizes along the pressure relief channel 310 and flows from the pressure relief exhaust port 312 toward the inside of the air pump. The compressed airflow is internally depressurized, allowing the depressurized airflow and noise to be absorbed inside the air pump, thereby reducing the noise generated during depressurization. Furthermore, because internal depressurization is used, the internal depressurization component 800 does not require sound-absorbing cotton or a pressure regulating cap, thus reducing the manufacturing cost of the air pump. Simultaneously, by placing the internal depressurization component 800 at the depressurization hole 311 of the valve plate fixing seat 300, and between the valve plate fixing seat 300 and the cup fixing seat 200, the frequency vibration generated by the internal depressurization component 800 during depressurization can be damped, and resonance between the internal depressurization component 800 and the upper cover 400 during frequency vibration can be avoided, thereby achieving noise reduction and vibration damping effects.

[0044] To ensure the internal pressure relief method, the internal pressure relief component 800 in this embodiment includes a guide rod 810 and a spring 820. One end of the guide rod 810 is movably disposed in the middle of the cup fixing seat 200, and the other end has a sealing part 811. An elastic valve plug 830 is sleeved on the sealing part 811. The spring 820 is sleeved on the guide rod 810, with one end abutting against the cup fixing seat 200 and the other end abutting against the sealing part 811. The elasticity of the spring 820 itself can drive the elastic valve plug 830 to seal the pressure relief hole 311.

[0045] During depressurization, the depressurization airflow pushes the elastic valve plug 830 through the depressurization hole 311. The elastic valve plug 830, along with the sealing part 911 of the guide rod 810, squeezes the spring 820, thereby opening the depressurization hole 311. At this time, the depressurization airflow flows along the depressurization hole 311 to the depressurization channel 310, and then flows into the air pump through the depressurization exhaust port 312, thus achieving internal depressurization. After the internal depressurization is completed, the spring 820, under its own elastic force, will drive the guide rod 810 and the elastic valve plug 830 to reset, and the elastic valve plug 830 will seal the depressurization hole 311. Through the combined arrangement of the elastic valve plug 830, the guide rod 810, and the spring 820, the wobbling of the elastic valve plug 830 during operation can be effectively avoided, thereby stabilizing the depressurization airflow and noise, ensuring internal depressurization, and achieving the purpose of noise reduction.

[0046] Please see Figures 2 to 6 In order to ensure the normal operation of the air pump, in this embodiment, a diaphragm block 900 is pressed between the valve plate fixing seat 300 and the upper cover 400, and a pressure relief through hole 910 corresponding to the pressure relief hole position 311 is opened in the middle of the diaphragm block 900. The valve plate fixing seat 300 is also provided with a mounting hole 320, an air inlet hole 330 and an air outlet hole 340. The air inlet hole 330 is located at the edge of the mounting hole 320, and an air inlet valve plate 350 is provided in the mounting hole 320. The air inlet valve plate 350 can block the air inlet hole 330. An air outlet valve plate 920 is provided on the diaphragm block 900, and the air outlet valve plate 920 can block the air outlet hole 340.

[0047] Meanwhile, an airflow channel 210 is provided on the cup holder 200, an airflow channel 360 is provided on the valve plate holder 300, and an airflow hole 930 is provided on the diaphragm block 900. The air inlet 110, the airflow channel 210, the airflow channel 360 and the airflow hole 930 are connected in sequence, and the pressure relief exhaust port 312 is connected to the airflow channel 360.

[0048] The oscillating assembly 700 includes an eccentric wheel 710, a rotating shaft 720, and a swing arm 730. The eccentric wheel 710 is connected to the drive member 600. One end of the rotating shaft 720 is connected to the eccentric wheel 710, and the other end is connected to the swing arm 730. The swing arm 730 is connected to the piston cup 500. The drive member 600 drives the eccentric wheel 710 to rotate, thereby driving the swing arm 730 to oscillate through the rotating shaft 720.

[0049] When the air pump is working normally, the eccentric wheel 710 is driven to rotate by the drive component 600, which is a motor. When the eccentric wheel 710 rotates, it drives the swing arm 730 to swing up and down at a certain angle via the rotating shaft 720. When the swing arm 730 swings up and down, it drives the cup piston 500 to move up and down. When the cup piston 500 is pulled down, a vacuum chamber is created, which pulls down the air inlet valve plate 350, opening the air inlet 330. At this time, the airflow enters the air pump from the air inlet 110 of the base 100, and then flows along the air... The airflow channels 210, 360, 930, and 330 enter the piston cup 500. When the piston cup 500 pushes upward to compress, it pushes the intake valve 350 and the exhaust valve 920 upward, causing the intake valve 350 to block the intake port 330, while the exhaust valve 920 opens the exhaust port 340. At this time, the airflow flows along the exhaust port 340 and is then delivered outward through the exhaust nozzle 410 to achieve the normal operation of the air pump. When the pressure at the exhaust nozzle 410 exceeds the set threshold, The airflow pushes the elastic valve plug 830, which is blocked at the pressure relief port 311, through the pressure relief through-hole 910. The elastic valve plug 830, along with the sealing part 811 of the guide rod 810, compresses the spring 820, thereby opening the pressure relief port 311. At this time, the pressure relief airflow flows along the pressure relief port 311 to the pressure relief channel 310, then through the pressure relief exhaust port 312 to the second airflow channel 360, and from the second airflow channel 360 to the interior of the air pump for recycling, achieving energy saving and emission reduction, and realizing internal pressure relief of the pressure relief airflow. The internal pressure relief method allows the pressure relief airflow and noise to be absorbed inside the air pump, thereby reducing the noise generated during pressure relief. Furthermore, because of the internal pressure relief method, the internal pressure relief component 800 does not require the addition of sound-absorbing cotton or a pressure regulating cap, thus reducing the manufacturing cost of the air pump. Simultaneously, by placing the internal pressure relief component 800 at the pressure relief hole 311, the frequency vibration generated by the internal pressure relief component 800 during pressure relief can be damped, and resonance between the internal pressure relief component 800 and the upper cover 400 during frequency vibration can be avoided, thereby achieving noise reduction and vibration damping effects.

[0050] Finally, please see Figure 1 and Figure 2 In order to facilitate the assembly of the air pump, in this embodiment, after the base 100, the cup holder 200, the cup piston 500, the valve plate holder 300, the diaphragm block 900 and the top cover 400 are assembled in sequence, the retaining ring 1000 can be used to lock and limit the position between the base 100 and the top cover 400, thereby ensuring the assembly of the air pump. The drive component 600 is fixedly connected to the bottom of the base 100 with screws, which makes the assembly of the air pump more convenient and simple. Example 2

[0051] Please see Figures 9 to 11In another embodiment, the internal leakage assembly 800 includes a guide rod 810 and a spring 820. One end of the guide rod 810 is movably disposed in the middle of the cup fixing seat 200, and the other end has a sealing part 811. The spring 820 is sleeved on the guide rod 810, and its two ends abut against the cup fixing seat 200 and the sealing part 811 respectively. The spring 820 can drive the sealing part 811 to pass through the pressure relief hole 311 to seal the pressure relief through hole 910 by its own elastic force.

[0052] During pressure relief, the pressure relief airflow pushes the sealing part 811 of the guide rod 810 through the pressure relief through hole 910 of the diaphragm block 900. At this time, the sealing part 811 of the guide rod 810 compresses the spring 820, thereby opening the pressure relief through hole 910. The pressure relief airflow then flows along the pressure relief through hole 910 to the pressure relief port 311, then from the pressure relief port 311 to the pressure relief channel 310, and then through the pressure relief exhaust port 312 into the air pump, thus achieving internal pressure relief. When the internal pressure relief is complete... After the spring 820 is released, the sealing part 811 of the guide rod 810 will be reset under the elastic force of the spring 820. The sealing part 811 will then seal the pressure relief hole 910 again. The sealing part 811 of the guide rod 810 and the sealing part 811 of the pressure relief hole 910 of the diaphragm block 900, along with the cooperation between the guide rod 810 and the spring 820, can effectively prevent the guide rod 810 from shaking during operation, thereby stabilizing the pressure relief airflow and noise, ensuring internal pressure relief, and achieving the purpose of noise reduction.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description; however, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model; furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A low-noise internal pressure relief massage lumbar support air pump, characterized in that: It includes a base, a cup holder, a valve plate holder, and a top cover, which are assembled from bottom to top. A cup piston is pressed between the cup holder and the valve plate holder. The base is connected to a driving component, and the driving component is connected to the cup piston through a swing assembly. The base is provided with an air inlet, the top cover is provided with an air outlet, and the valve plate fixing seat is provided with a pressure relief channel. One end of the pressure relief channel is a pressure relief exhaust port, and the other end forms a pressure relief hole, and an internal leakage component is provided at the pressure relief hole.

2. The low-noise internal pressure relief massage waist support air pump according to claim 1, characterized in that: A diaphragm block is also pressed between the valve plate fixing seat and the upper cover, and the diaphragm block is stacked on the valve plate fixing seat, with a pressure relief through hole corresponding to the pressure relief hole position in the middle of the diaphragm block.

3. The low-noise internal pressure relief massage lumbar support air pump according to claim 2, characterized in that: The internal leakage assembly includes a guide rod and a spring. One end of the guide rod is movably disposed in the middle of the cup fixing seat, and the other end has a sealing part. The spring is sleeved on the guide rod, and its two ends abut against the cup fixing seat and the sealing part, respectively. The spring's own elastic force can drive the sealing part to pass through the pressure relief hole and seal the pressure relief through hole.

4. The low-noise internal pressure relief massage lumbar support air pump according to claim 2, characterized in that: The internal leakage assembly includes a guide rod and a spring. One end of the guide rod is movably disposed in the middle of the cup fixing seat, and the other end has a sealing part, on which an elastic valve plug is sleeved. The spring is sleeved on the guide rod, and its two ends abut against the cup fixing seat and the sealing part, respectively. The elastic valve plug can be driven by the elastic force of the spring to seal the pressure relief hole.

5. The low-noise internal pressure relief massage lumbar support air pump according to claim 3 or 4, characterized in that: The valve plate mounting seat is provided with a mounting hole, an air inlet hole and an air outlet hole. The air inlet hole is located at the edge of the mounting hole, and an air inlet valve plate is provided in the mounting hole. The air inlet valve plate can block the air inlet hole.

6. The low-noise internal pressure relief massage lumbar support air pump according to claim 5, characterized in that: The diaphragm block is equipped with an air outlet valve, which can block the air outlet.

7. The low-noise internal pressure relief massage lumbar support air pump according to claim 5, characterized in that: The cup holder is provided with an airflow channel one, the valve plate holder is provided with an airflow channel two, the diaphragm block is provided with an airflow hole, the air inlet, airflow channel one, airflow channel two and the airflow hole are connected in sequence, and the pressure relief exhaust port is connected to airflow channel two.

8. The low-noise internal pressure relief massage lumbar support air pump according to claim 1, characterized in that: The swing assembly includes an eccentric wheel, a rotating shaft, and a swing arm. The eccentric wheel is connected to a drive component, one end of the rotating shaft is connected to the eccentric wheel, and the other end is connected to the swing arm. The swing arm is connected to a piston cup. The drive component drives the eccentric wheel to rotate, thereby driving the swing arm to swing.

9. The low-noise internal pressure relief massage lumbar support air pump according to claim 2, characterized in that: The base, cup fixing seat, cup piston, valve plate fixing seat, diaphragm block and top cover are assembled in sequence and then secured by snap rings.

10. The low-noise internal pressure relief massage waist support air pump according to claim 1, characterized in that: The driving component is a motor, which is fixedly connected to the bottom of the base with screws.

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