Automobile seat system air pump with noise reduction function

Abstract

The utility model relates to the technical field of automobile seat systems, in particular to an automobile seat system air pump with a silencing function. An automobile seat system air pump with a noise reduction function is characterized in that a driving shaft of a motor is in shaft connection with one end of an eccentric wheel, the other end of the eccentric wheel is connected with the bottom of an ejector rod, the top of the ejector rod is connected with a rubber film, and an overpressure protection plate is arranged above the rubber film; a bare pump lower cover is arranged on the outer side of the rubber film, the top of the bare pump lower cover is connected with a bare pump upper cover, and a motor is arranged at the bottom of the bare pump lower cover. And an airflow channel I and an airflow channel II are respectively arranged on the inner side walls of the bare pump lower cover and the bare pump upper cover. Compared with the prior art, mechanical movement parts for isolating the eccentric wheel and the ejector rod are sealed in a closed space, airflow channels of the bare pump lower cover and the bare pump upper cover are additionally arranged, an air inlet of the air pump is formed in one side of the pump head and does not pass through the eccentric wheel and the ejector rod in the pump head, the airflow trend is changed, and therefore conduction of mechanical noise is isolated.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat systems, in particular to an automobile seat system air pump with a silencing function. Background Art

[0002] Traditional car seat air pumps take in air from the bottom of the pump head, and the air flow passes through the moving parts: the eccentric wheel and the push rod, which are connected to the outside through the air inlet. In this way, the eccentric wheel and the push rod can easily transmit mechanical noise to the outside through the air inlet during movement. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an automobile seat system air pump with a silencing function, which isolates the mechanical moving parts of an eccentric wheel and a push rod, seals them in a closed space, and increases air flow channels of a bare pump lower cover and a bare pump upper cover to change the direction of the air flow, thereby isolating the conduction of mechanical noise.

[0004] In order to achieve the above-mentioned purpose, an automobile seat system air pump with a silencer function is designed, comprising a bare pump upper cover, a bare pump middle cover, a bare pump lower cover, a motor, a rubber membrane, a push rod, and an eccentric wheel, wherein the driving shaft of the motor is connected to one end of the eccentric wheel, the other end of the eccentric wheel is connected to the bottom of the push rod, the top of the push rod is connected to the rubber membrane, and an overpressure protection plate is provided above the rubber membrane; a bare pump lower cover is provided on the outer side of the rubber membrane, the top of the bare pump lower cover is connected to the bare pump upper cover, and a motor is provided at the bottom of the bare pump lower cover; air flow channel 1 and air flow channel 2 are respectively provided on the inner side walls of the bare pump lower cover and the bare pump upper cover.

[0005] A steel ball is embedded inside the upper cover of the bare pump, the lower end of the steel ball abuts against one end of the spring, the other end of the spring abuts against the gasket, and the lower part of the gasket is connected to the overpressure protection plate through the spring base.

[0006] The liner and the overpressure protection plate are embedded in the interior of the bare pump upper cover.

[0007] A vent is provided in the center of the liner.

[0008] The left and right sides of the overpressure protection plate are respectively provided with grooves, and the center of the overpressure protection plate is provided with a vent.

[0009] The bottom of the rubber membrane is provided with four pistons, and the four pistons are positioned and connected with the top of the push rod.

[0010] The lower part of the rubber membrane is supported and positioned by the bare pump middle cover, and the bare pump middle cover is located inside the bare pump lower cover.

[0011] The interior of the push rod and the eccentric wheel is a closed space structure.

[0012] The air flow of the air pump enters from the bottom of the bare pump lower cover, and enters the flow channel 1 of the bare pump lower cover and the air flow channel 2 of the bare pump upper cover in turn, and passes through the grooves on the left and right sides of the overpressure protection plate, and then passes from top to bottom through the air vent in the center of the gasket, the spring base, the air vent in the center of the overpressure protection plate, and enters the four piston chambers of the rubber membrane.

[0013] Compared with the prior art, the utility model provides an automobile seat system air pump with a silencing function, which isolates the mechanical moving parts of the eccentric wheel and the push rod, seals them in a closed space, and increases the air flow channels of the bare pump lower cover and the bare pump upper cover. The air inlet of the air pump is on one side of the pump head, does not pass through the internal eccentric wheel and the push rod, changes the direction of the air flow, and thus isolates the conduction of mechanical noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the structure of the utility model.

[0015] Figure 2 This is an exploded view of the structure of the utility model.

[0016] Figure 3 This is a schematic diagram of the airflow direction of the utility model.

[0017] See also Figures 1 to 3 , 1 is a steel ball, 2 is a spring, 3 is a spring base, 4 is a gasket, 5 is an overpressure protection plate, 6 is a push rod, 7 is an eccentric wheel, 8 is a bare pump middle cover, 9 is a bare pump lower cover, 9-1 is an air flow channel one, 10 is a motor, 11 is a bare pump upper cover, 11-1 is an air flow channel two, and 12 is a rubber membrane. DETAILED DESCRIPTION

[0018] The utility model is further described below with reference to the accompanying drawings.

[0019] like Figure 1 to Figure 3 As shown, the driving shaft of the motor 10 is connected to one end of the eccentric wheel 7, the other end of the eccentric wheel 7 is connected to the bottom of the push rod 6, the top of the push rod 6 is connected to the rubber membrane 12, and an overpressure protection plate 5 is provided above the rubber membrane 12; a bare pump lower cover 9 is provided on the outer side of the rubber membrane 12, the top of the bare pump lower cover 9 is connected to the bare pump upper cover 11, and a motor 10 is provided at the bottom of the bare pump lower cover 9; airflow channel 1 9-1 and airflow channel 2 11-1 are respectively provided on the inner side walls of the bare pump lower cover 9 and the bare pump upper cover 11.

[0020] A steel ball 1 is embedded inside the bare pump cover 11 , the lower end of the steel ball 1 abuts against one end of the spring 2 , the other end of the spring 2 abuts against the gasket 4 , and the lower part of the gasket 4 is connected to the overpressure protection plate 5 through the spring base 3 .

[0021] The gasket 4 and the overpressure protection plate 5 are embedded in the interior of the bare pump upper cover 11 .

[0022] A vent is provided at the center of the pad 4.

[0023] The left and right sides of the overpressure protection plate 5 are respectively provided with grooves, and the center of the overpressure protection plate 5 is provided with a vent.

[0024] Four pistons are provided at the bottom of the rubber membrane 12 , and the four pistons are positioned and connected to the top of the push rod 6 .

[0025] The lower part of the rubber membrane 12 is supported and positioned by the bare pump middle cover 8 , and the bare pump middle cover 8 is located inside the bare pump lower cover 9 .

[0026] The interior of the push rod 6 and the eccentric wheel 7 is a closed space structure.

[0027] The air flow of the air pump enters from the bottom of the bare pump lower cover 9, and enters the flow channel 1 9-1 of the bare pump lower cover 9 and the air flow channel 2 11-1 of the bare pump upper cover 11 in turn, and passes through the grooves on the left and right sides of the overpressure protection plate 5, and then passes from top to bottom through the air vent in the center of the gasket 4, the spring base 3, the air vent in the center of the overpressure protection plate 5, and enters the four piston chambers of the rubber membrane 12.

[0028] When the air pump is working, the airflow passes through the bare pump lower cover 9, bare pump middle cover 8, rubber membrane 12, overpressure protection plate 5, gasket 4 from bottom to top, and then passes through the vent of gasket 4, spring base 3, overpressure protection plate 5 from top to bottom into the four piston chambers of rubber membrane 12. It will not pass through the internal closed space of push rod 6 and eccentric wheel 7, thus isolating the conduction of mechanical noise.

[0029] By isolating the push rod 6 and the eccentric wheel 7, the push rod 6 and the eccentric wheel 7 are disconnected from the outside. The noise of the air pump in the bicycle seat is reduced by isolating the mechanical noise generated when the push rod 6 and the eccentric wheel 7 rotate.

Claims

1. An air pump for a car seat system with a silencing function, comprising a bare pump upper cover, a bare pump middle cover, a bare pump lower cover, a motor, a rubber membrane, a push rod, and an eccentric wheel, characterized in that: The driving shaft of the motor (10) is connected to one end of the eccentric wheel (7), the other end of the eccentric wheel (7) is connected to the bottom of the push rod (6), the top of the push rod (6) is connected to the rubber membrane (12), and an overpressure protection plate (5) is provided above the rubber membrane (12); a bare pump lower cover (9) is provided on the outer side of the rubber membrane (12), the top of the bare pump lower cover (9) is connected to the bare pump upper cover (11), and a motor (10) is provided at the bottom of the bare pump lower cover (9); air flow channel 1 (9-1) and air flow channel 2 (11-1) are respectively provided on the inner side walls of the bare pump lower cover (9) and the bare pump upper cover (11).

2. The automobile seat system air pump with a silencing function according to claim 1, characterized in that: A steel ball (1) is embedded inside the bare pump upper cover (11), the lower end of the steel ball (1) abuts against one end of the spring (2), the other end of the spring (2) abuts against the gasket (4), and the lower part of the gasket (4) is connected to the overpressure protection plate (5) through the spring base (3).

3. The automobile seat system air pump with a silencing function according to claim 2, characterized in that: The gasket (4) and the overpressure protection plate (5) are embedded in the interior of the bare pump upper cover (11).

4. The automobile seat system air pump with a silencing function according to claim 2 or 3, characterized in that: A vent is provided in the center of the cushion (4).

5. The automobile seat system air pump with a silencing function according to claim 2 or 3, characterized in that: The left and right sides of the overpressure protection plate (5) are respectively provided with grooves, and the center of the overpressure protection plate (5) is provided with a vent.

6. The automobile seat system air pump with a silencing function according to claim 1, characterized in that: The bottom of the rubber membrane (12) is provided with four pistons, and the four pistons are positioned and connected to the top of the push rod (6).

7. The automobile seat system air pump with a silencing function according to claim 1 or 6, characterized in that: The lower part of the rubber membrane (12) is supported and positioned by the bare pump middle cover (8), and the bare pump middle cover (8) is located inside the bare pump lower cover (9).

8. The automobile seat system air pump with a silencing function according to claim 1, characterized in that: The interior of the push rod (6) and the eccentric wheel (7) is a closed space structure.

9. The automobile seat system air pump with a silencing function according to claim 1, characterized in that: The air flow of the air pump enters from the bottom of the bare pump lower cover (9), and enters the air flow channel 1 (9-1) of the bare pump lower cover (9) and the air flow channel 2 (11-1) of the bare pump upper cover (11) in turn, and passes through the grooves on the left and right sides of the overpressure protection plate (5), and then passes from top to bottom through the air vent in the center of the gasket (4), the spring base (3), the air vent in the center of the overpressure protection plate (5), and enters the four piston chambers of the rubber membrane (12).

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