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CN-224214319-U - Inflating mechanism of inflator pump

CN224214319UCN 224214319 UCN224214319 UCN 224214319UCN-224214319-U

Abstract

The application provides an inflating mechanism of an inflator pump, which comprises a brushless motor, a cylinder seat and a piston rod, wherein a cam is fixed on an output shaft of the brushless motor, the cam is eccentrically connected with the piston rod, a piston cavity is arranged in the cylinder seat, a piston head of the piston rod is hermetically arranged in the piston cavity, one end of the piston cavity is communicated with an air outlet hole, the brushless motor is used for driving the cam to rotate, the cam enables the piston rod to stretch in the piston cavity, and generated gas is discharged from the air outlet hole. According to the inflation mechanism of the inflator pump, the motor and the piston rod can be directly driven through the eccentric connection of the piston rod on the cam, the connecting rod is not required to be added for driving, the driving structure is more stable and is not easy to damage, and therefore the overall inflation efficiency of the inflator pump is improved and the service life is prolonged.

Inventors

  • YU LIJUN

Assignees

  • 浙江玛莎蒂厨具有限公司

Dates

Publication Date
20260508
Application Date
20250709

Claims (9)

  1. 1. The utility model provides an inflating pump's inflating mechanism, includes brushless motor (1), cylinder block (2) and piston rod (3), its characterized in that, be fixed with cam (4) on the output shaft of brushless motor (1), eccentric connection on cam (4) piston rod (3), cylinder block (2) inside is equipped with piston chamber (6), piston head (7) of piston rod (3) are sealed to be arranged in piston chamber (6), the one end intercommunication of piston chamber (6) has venthole (8), brushless motor (1) are used for driving cam (4) rotate, cam (4) make piston rod (3) are in carry out flexible motion in piston chamber (6), will produce the gas follow venthole (8) are discharged.
  2. 2. The inflation mechanism of the inflator pump according to claim 1, wherein the cam (4) is semicircular, one side of which is extended to form a connecting portion (5), and the piston rod (3) is mounted on the connecting portion (5).
  3. 3. The inflation mechanism of an inflator pump according to claim 2, wherein a connecting shaft (9) is fixed to the connecting portion (5), and the end of the piston rod (3) is fixed to the connecting shaft (9).
  4. 4. The inflation mechanism of an inflator pump according to claim 1, wherein one end of the cylinder block (2) is connected with a cylinder head bracket (10), and the air outlet hole (8) is provided at one side of the cylinder head bracket (10).
  5. 5. The inflation mechanism of the inflator pump according to claim 4, wherein a circulation cavity (11) is arranged in the cylinder cover bracket (10), and the circulation cavity (11) is communicated with the air outlet hole (8) and the piston cavity (6).
  6. 6. The inflation mechanism of an inflator pump according to claim 5, wherein a through hole (12) is provided at one side of the flow chamber (11), and a check valve (13) is installed between the through hole (12) and the flow chamber (11).
  7. 7. The inflation mechanism of the inflator pump according to claim 1, wherein a sealing ring (14) is sleeved on the piston head (7), and the sealing ring (14) is attached to the inner wall of the piston chamber (6).
  8. 8. The inflation mechanism of an inflator pump according to claim 4, wherein a plurality of positioning posts (15) are provided on the cylinder head bracket (10), and the positioning posts (15) are fixed on the cylinder block (2).
  9. 9. The inflation mechanism of an inflator pump according to claim 1, wherein a mounting seat (16) is provided on one side of the cylinder block (2), and the brushless motor (1) is fixed to the mounting seat (16).

Description

Inflating mechanism of inflator pump Technical Field The application relates to the technical field of air pumps, in particular to an air charging mechanism of an air pump. Background The inflator pump is an inflating tool which works by the operation of a motor, is widely applied to the inflation of tires of automobiles, motorcycles, bicycles, rubber balls, rubber boats and other articles, and generally has the structure comprising a motor, a transmission assembly, a piston rod, a one-way valve and an air cylinder. The principle is that the motor drives the transmission assembly to enable the piston rod to reciprocate in the cylinder, so that the inflation function is realized, the conventional inflator pump usually realizes the transmission of the motor and the piston rod in a connecting rod mode, the structural stability is poor, and after long-term use, parts are easy to fatigue and lose efficacy, so that the service life is short. Disclosure of Invention First, the technical problem to be solved The utility model aims to solve the problem of providing an inflation mechanism of an inflator pump, so as to overcome the defect of short service life caused by unstable transmission structure of the inflator pump in the prior art. (II) technical scheme The embodiment of the specification provides the following technical scheme: The embodiment of the specification provides an inflating mechanism of an inflator pump, which comprises a brushless motor, a cylinder seat and a piston rod, wherein a cam is fixed on an output shaft of the brushless motor, the cam is eccentrically connected with the piston rod, a piston cavity is arranged in the cylinder seat, a piston head of the piston rod is arranged in the piston cavity in a sealing manner, one end of the piston cavity is communicated with an air outlet hole, the brushless motor is used for driving the cam to rotate, the cam enables the piston rod to stretch and retract in the piston cavity, and generated gas is discharged from the air outlet hole. In some embodiments, the cam is semicircular, a connecting part is formed by extending one side of the cam, the piston rod is installed on the connecting part, a connecting shaft is fixed on the connecting part, the tail end of the piston rod is fixed on the connecting shaft, and the connecting shaft enables the tail end of the piston rod to be eccentrically arranged relative to the cam, so that the cam can drive the piston rod to swing back and forth when rotating, and the piston rod can stretch and retract in the piston cavity to generate gas. In some embodiments, one end of the cylinder seat is connected with a cylinder cover support, the air outlet hole is arranged on one side of the cylinder cover support, a circulation cavity is arranged in the cylinder cover support, the circulation cavity is communicated with the air outlet hole and the piston cavity, a through hole is arranged on one side of the circulation cavity, and a one-way valve is arranged between the through hole and the circulation cavity. In some embodiments, a sealing ring is sleeved on the piston head, the sealing ring is attached to the inner wall of the piston cavity, a plurality of positioning columns are arranged on the cylinder cover support, and the positioning columns are fixed on the cylinder seat. In some embodiments, a mounting seat is provided on one side of the cylinder seat, and the brushless motor is fixed on the mounting seat. (III) beneficial effects Compared with the prior art, the at least one technical scheme adopted by the embodiment of the specification has the beneficial effects that the motor and the piston rod can be directly driven by the eccentric connection of the piston rod on the cam, the connecting rod is not required to be added for driving, the driving structure is more stable and is not easy to damage, and therefore the whole inflation efficiency of the inflator pump is improved and the service life is prolonged. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. FIG. 1 is a perspective view of the present application; FIG. 2 is a cross-sectional view of the present application; FIG. 3 is a perspective view of a cam and piston rod of the present application; FIG. 4 is a perspective view of a brushless motor and cam of the present application; fig. 5 is a perspective view of a cylinder block and a cylinder bracket in the present application. The corresponding part names of the reference numerals in the figure are 1, a brushless motor, 2, a cylinder seat, 3, a piston rod, 4, a cam, 5, a connecting part, 6, a piston cavity, 7, a piston