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CN-224214337-U - Air pump with smaller noise

CN224214337UCN 224214337 UCN224214337 UCN 224214337UCN-224214337-U

Abstract

The utility model provides an air pump with smaller noise, which comprises an upper cover, a lower cover, a cylinder body, a motor mounting seat and a motor, wherein a fixing screw sequentially penetrates through the upper cover, the lower cover, the cylinder body, the motor mounting seat and the motor from top to bottom to be fixedly connected, an air inlet cavity and an air outlet cavity are arranged in an inner cavity of the upper cover at intervals, a bulge part is arranged on the lower cover in an outward extending mode, an air inlet nozzle and an air outlet nozzle are arranged on the bottom surface of the bulge part, a one-way valve plate is further arranged between the upper cover and the lower cover, a rubber cup is arranged on the cylinder body, the air inlet cavity and the air outlet cavity penetrate through the one-way valve plate to be communicated with the inner cavity of the rubber cup, the bottom of the rubber cup is connected with an eccentric rocker assembly, the lower end of the eccentric rocker assembly is connected with the output end of the motor, and the motor is used for driving the eccentric rocker assembly to extrude the rubber cup to pump. The utility model has the advantages of simpler and more convenient assembly, lower production and manufacturing cost, lower using noise and longer service life.

Inventors

  • Xiang na
  • Long Peitian

Assignees

  • 东莞市清田御实业有限公司

Dates

Publication Date
20260508
Application Date
20250627

Claims (7)

  1. 1. The utility model provides a noise less air pump, its characterized in that, includes upper cover, lower cover, cylinder body, motor mount pad and motor, and the fixed screw passes upper cover, lower cover, cylinder body, motor mount pad and motor fixed connection from last to down in proper order, and upper cover intracavity interval is provided with the air inlet chamber and gives vent to anger the chamber, and the lower cover extends to the outside and is provided with the bulge, the bulge bottom surface is provided with air inlet nozzle and air outlet nozzle, the air inlet nozzle is linked together with the air inlet chamber and sets up, and the air outlet nozzle is linked together with the chamber of giving vent to anger and sets up, still is provided with the check valve piece between upper cover and the lower cover, installs rubber cup on the cylinder body, and the air inlet chamber passes check valve piece and rubber cup inner chamber intercommunication setting with the chamber of giving vent to anger, and rubber cup bottom links to each other with eccentric rocker subassembly, and eccentric rocker subassembly lower extreme links to each other with the motor output, the motor is used for driving eccentric rocker subassembly extrusion rubber cup and pumps.
  2. 2. The air pump with lower noise according to claim 1, wherein the lower cover is provided with a plurality of exhaust holes corresponding to the inner cavity of the rubber cup, the one-way valve plate is provided with a through hole corresponding to the rubber cup, a first one-way valve plate structure is arranged in the through hole in a extending manner along the direction of the exhaust hole, and the bottom surface of the first one-way valve plate structure is covered on the exhaust holes.
  3. 3. The air pump with lower noise according to claim 1, wherein the one-way valve plate, the lower cover and the cylinder body are provided with air inlets which are opposite to each other, the upper ends of the air inlets are communicated with the air inlet cavity, and the lower ends of the air inlets are communicated with the inner cavity of the motor mounting seat.
  4. 4. The air pump with smaller noise according to claim 1, wherein an air outlet is further arranged in the middle of the cylinder body, a second one-way valve plate structure is arranged at a covering position of the rubber cup relative to the air outlet, and the inner cavity of the motor mounting seat is arranged in one-way communication with the inner cavity of the rubber cup through the air outlet.
  5. 5. The air pump with smaller noise as claimed in claim 1, wherein a slope boss structure is arranged at the outer side surface of the upper end of the rubber cup opposite to the installation surface of the cylinder body.
  6. 6. The air pump with lower noise according to claim 1, wherein the eccentric swing frame assembly comprises an eccentric part, steel balls, a rotating shaft and a swing frame, a motor shaft mounting hole is formed in the bottom of the eccentric part, an output shaft of the motor assembly penetrates through the motor shaft mounting hole, the upper portion of the eccentric part is further provided with the rotating shaft mounting hole, the steel balls are arranged in the rotating shaft mounting hole, the swing frame is arranged above the eccentric part, the rotating shaft is fixed at the bottom of the swing frame, the rotating shaft is arranged in the rotating shaft mounting hole, and the upper end of the swing frame is connected with a rubber cup.
  7. 7. The air pump with smaller noise according to claim 1, wherein a positioning slot is further formed on the outer peripheral side of the upper surface of the cylinder body, a positioning sheet is arranged on the upper end face of the rubber cup in a protruding mode to the outer side, and the positioning sheet is embedded with the positioning slot.

Description

Air pump with smaller noise Technical Field The utility model relates to the technical field of diaphragm pumps, in particular to an air pump with smaller noise. Background Conventional air pumps (e.g., small piston or diaphragm type air pumps) often employ metal or hard plastic umbrella-type check valves (intake and exhaust valves). This structure has the following disadvantages: The noise is big, when the umbrella is opened and closed, the head of the umbrella can slash against the valve seat or the limiting structure, and obvious 'pyridazine' knocking sound is generated, which is one of the main noise sources of the air pump. The umbrella is relatively complex in structure, and the umbrella usually needs an independent valve seat, a spring (or reset by self elasticity), a limiting structure and the like, so that the number of parts is large, and the assembly is relatively complicated. Frequent impacts may cause fatigue damage to umbrella Ding Toubu, valve seat, or springs, affecting life and tightness. There is a need for a less noisy air pump that solves the above-mentioned problems. Disclosure of utility model The utility model provides an air pump with smaller noise, which solves the problems of complex structure and larger using noise of the existing air pump by performing technical transformation on the existing air pump. In order to achieve the above purpose, the utility model adopts the following technical scheme: The utility model provides a lower air pump of noise, includes upper cover, lower cover, cylinder body, motor mount pad and motor, and the fixed screw passes upper cover, lower cover, cylinder body, motor mount pad and motor fixed connection from last to down in proper order, and upper cover intracavity interval is provided with the chamber of admitting air and gives vent to anger the chamber, and the lower cover extends to the outside and is provided with the bulge, the bulge bottom surface is provided with inlet nozzle and air outlet nozzle, inlet nozzle and chamber of admitting air are linked together and are set up, the air outlet nozzle is linked together with the chamber of giving vent to anger and is set up, still is provided with one-way valve block between upper cover and the lower cover, installs the rubber cup on the cylinder body, and inlet chamber and the chamber of giving vent to anger pass one-way valve block and rubber cup inner chamber intercommunication setting, and rubber cup bottom links to each other with eccentric rocker subassembly, and eccentric rocker subassembly lower extreme links to each other with the motor output, the motor is used for driving eccentric rocker subassembly extrusion rubber cup and pumps. Preferably, the lower cover is provided with a plurality of exhaust holes at positions corresponding to the inner cavity of the rubber cup, the one-way valve plate is provided with a through hole at positions corresponding to the rubber cup, a first one-way valve plate structure is arranged in the through hole in a extending manner along the direction of the exhaust holes in the lateral direction, and the bottom surface of the first one-way valve plate structure is covered on the exhaust holes. Preferably, the one-way valve plate, the lower cover and the cylinder body are provided with air inlets which are opposite in position, the upper ends of the air inlets are communicated with the air inlet cavity, and the lower ends of the air inlets are communicated with the inner cavity of the motor mounting seat. Preferably, the middle part of the cylinder body is also provided with an air outlet, the covering position of the rubber cup relative to the air outlet is provided with a second one-way valve plate structure, and the inner cavity of the motor mounting seat is arranged in one-way communication with the inner cavity of the rubber cup through the air outlet. Preferably, a slope boss structure is arranged at the position of the outer side surface of the upper end of the rubber cup, which is opposite to the mounting surface of the cylinder body. Preferably, the eccentric rocker assembly comprises an eccentric part, steel balls, a rotating shaft and a rocker, wherein a motor shaft mounting hole is formed in the bottom of the eccentric part, an output shaft of the motor assembly penetrates through the motor shaft mounting hole, the rotating shaft mounting hole is further formed in the upper portion of the eccentric part, the steel balls are arranged in the rotating shaft mounting hole, the rocker is arranged above the eccentric part, the rotating shaft is fixed at the bottom of the rocker, the rotating shaft is arranged in the rotating shaft mounting hole, and the upper end of the rocker is connected with a rubber cup. Preferably, a positioning clamping groove is further formed in the peripheral side of the upper surface of the cylinder body, a positioning sheet is arranged on the upper end face of the rubber cup in a protruding mode to the outer side, and the pos