JP3179711U - Air pump with good airtightness - Google Patents

Abstract

An air pump having excellent airtightness, a simple structure and convenient assembly is provided.
An air suction member 20 and an air discharge member 30 are provided. The air suction member has an air chamber. The air chamber has a hollow telescopic portion, an intake valve, and a flexible tube. The hollow telescopic portion is compressed or expanded by driving a motor, and the intake valve is hollow telescopic. Air is allowed to pass through when the part is compressed, and the flexible tube is divided into a plurality of exhaust valve plates with a plurality of kerfs, and each exhaust valve plate opens and closes an exhaust passage on the surface of each exhaust valve plate Reinforcing ribs are provided. The air discharge member is provided in the air chamber and has an exhaust hole 32 and a guide groove 34. The exhaust hole accommodates the flexible tube therein, and the guide groove has an air flow so as to guide air into the hollow telescopic part. It communicates with the hollow telescopic part of the chamber and the intake valve.
[Selection] Figure 2

Description

  The present invention relates to an air pump, and more particularly, to an air pump having good airtightness.

  The conventional air pump is mainly composed of a combination of an exhaust valve plate, a baffle plate, an air chamber set, a plurality of intake hole plugs, and a control lever, and by raising or lowering the control lever by driving a motor, Each air chamber of the set can be moved to compress or expand. Air supply and exhaust are realized by inhaling air through each intake hole plug when the air chamber is compressed and exhausting air through the exhaust valve plate when expanding.

  However, in the structure described above, the quantity of each part is large, and the parts are assembled after being manufactured separately. It affects sex. Along with this, the sound during intake and exhaust becomes louder, so there is a need for improvement.

  The main object of the present invention is to provide an air pump that is excellent in airtightness, simple in structure, and convenient to assemble.

In order to achieve the above object, an air pump of the present invention includes an air suction member and an air discharge member. The air suction member has an air chamber fixed base and an air chamber, the air chamber fixed base has a storage hole and an air hole, and the air chamber is provided on the air chamber fixed base and is a plate A plate, the plate is fixed to the air chamber fixed base, and the hollow stretchable portion is moved between a compressed position and an expanded position by driving a motor. In order to operate, the plate extends outward from one surface of the plate body and is accommodated in the accommodation hole of the air chamber fixed base, and the intake valve is air-operated when the hollow telescopic portion is in the compression position. The air hole of the air chamber fixed base is movably covered so as to be passed through the plate.
The flexible tube body extends outward from the other side surface of the plate body and has a plurality of kerfs, and is divided into a plurality of exhaust valve plates by the kerfs, Reinforcing ribs are provided on the inner wall surfaces of the exhaust valve plates so that the passage of air is blocked by the exhaust valve plates when the portion is in the extended position.
The air exhaust member is covered with an air chamber of the air suction member and has an exhaust hole and a guide groove, and the exhaust hole communicates with a hollow telescopic portion of the air chamber and the air chamber And the guide groove communicates between the hollow telescopic part of the air chamber and the intake valve so as to guide the air passing through the intake valve into the hollow telescopic part. .

  From the above, the air pump of the present invention can simplify the assembly process by reducing the total number of parts by integrally aligning the hollow telescopic part of the air chamber, the intake valve, and the flexible tube, In addition, the design in which the reinforcing rib is provided on the flexible tube of the air chamber can ensure that the entire structure has good airtightness.

1 is a three-dimensional assembly view of a preferred embodiment of the present invention. 1 is a partially exploded view of a preferred embodiment of the present invention. 1 is an exploded view of an air suction member provided by a preferred embodiment of the present invention. 1 is a plan view of an air chamber provided by a preferred embodiment of the present invention. 1 is a bottom view of an air chamber provided by a preferred embodiment of the present invention. FIG. 2 is a partial cross-sectional view of a preferred embodiment of the present invention, mainly showing a state where air passes through an intake valve. It is sectional drawing of the preferable Example of this invention, and mainly shows the flow state of air. It is sectional drawing of the preferable Example of this invention, and mainly shows the flow state of air.

  The preferred embodiments of the present invention will be described below with reference to the drawings, and the structure and effects of the present invention will be described in detail.

  Please refer to FIGS. 1 and 2 first. The air pump 10 of the preferred embodiment of the present invention performs supply and exhaust operations by driving a motor 12. The motor 12 shown in the figure is fixed to the motor fixing base 14 and has a rotating shaft 122. As shown in FIG. 6B, the rotating crank 16 is fitted on the rotating shaft 122, and the rotating crank 16 is inclined. Has an eccentric shaft 162. The air pump 10 of the present invention includes an air suction member 20 and an air discharge member 30.

3 to 5 in conjunction with the above, the air suction member 20 includes an air chamber fixing base 40, an air chamber 50, and a pressure control lever 60.
The air chamber fixing base 40 has three storage holes 42 and three air holes 44 arranged alternately.
The air chamber 50 includes a plate body 51, three hollow expansion / contraction portions 52, three intake valves 53, and a flexible tube body 54, and the plate body 51 is the top surface of the air chamber fixing base 40. Each hollow telescopic part 52 extends outward from the bottom surface of the plate body 51 and is accommodated in the accommodation hole 42 of the air chamber fixing base 40, and each intake valve 53 has a valve body 532 and three connecting ribs 534. The valve body 532 covers the air hole 44 of the air chamber fixing base 40, and each connecting rib 534 is formed between the plate body 51 and the valve body 532 so that the position of the valve body 532 is stably fixed. They are connected.
As shown in FIGS. 3 to 5, the flexible tube 54 extends outward from the top surface of the plate body 51 and is provided with three cut grooves 542, and the cut grooves 542 provide three exhaust valve plates. Two exhaust ribs 546 are provided on the inner wall surface of each exhaust valve plate 544.
An insertion hole 62 is provided in the center of the bottom surface of the pressure control lever 60 so that the eccentric shaft 162 of the rotary crank 16 is inserted, and the pressure control lever 60 has three clamp portions 64. Each clamp part 64 is provided with a fixing hole 642 and a groove 644 communicating with the fixing hole 642, and when assembled, the bottom end of the hollow telescopic part 52 of the air chamber 50 is connected to the fixing hole 642 via the groove 644. It can be pinched and fixed inside.

  The air discharge member 30 is fixed to the top surface of the plate body 51 of the air chamber 50 and has an exhaust hole 32 and three guide grooves 34. The flexible tube 54 of the air chamber 50 is housed inside, and each guide groove 34 has a hollow expansion / contraction adjacent to the air chamber 50 so as to guide the air passing through the intake valve 53 into the hollow expansion / contraction part 52. The portion 52 and the intake valve 53 communicate with each other.

When actually used, the operation flow of each of the hollow stretchable parts 52 of the air chamber 50 is completely the same, so for convenience of paper width, only one set will be described here.
First, the rotary crank 16 is rotated by driving the motor 12, and then the rotary crank 16 raises or lowers the clamp part 64 of the pressure control lever 60 through the eccentric shaft 162, and the hollow telescopic part 52 of the air chamber 50 is interlocked. It operates between the compression position P1 and the expansion position P2. When the hollow telescopic part 52 of the air chamber 50 is in the extended position P2, as shown in FIG. 6A, air in the motor fixing base 14 is sucked and passes through the air holes 44 of the air chamber fixing base 40, and then the air chamber The valve body 532 of the 50 intake valves 53 is opened to enter the guide groove 34 of the air discharge member 30. As shown in FIG. 6B, the air finally enters the hollow elastic part 52 of the air chamber 50 from the guide groove 34 of the air discharge member 30 again, and the air supply to the hollow elastic part 52 of the air chamber 50 is started.
When the operation of the motor 12 is continued, as shown in FIG. 6C, the hollow telescopic part 52 of the air chamber 50 moves to the compression position P <b> 1 under the pressure of the clamp part 64 of the pressure control lever 60. Air in the hollow telescopic part 52 is pushed out, opens the exhaust valve plate 544 of the flexible tube 54 of the air chamber 50, and is discharged from the exhaust hole 32 of the air discharge member 30. Once exhaust is complete, the opened exhaust valve plate 544 returns to its original position by the action of the reinforcing ribs 546 and prevents air from continuing to pass through. In this way, by operating the motor 12 continuously, the air expansion and contraction part 52 of the air chamber 50 can supply and exhaust air without interruption, and the air supply operation can be performed.

  As described above, the air pump 10 of the present invention reduces the total number of parts by integrally aligning the hollow telescopic part 52 of the air chamber 50, the intake valve 53, and the flexible tube 54. The assembly process can be simplified, and the exhaust ribs 546 of the intake valve 53 and the reinforcing ribs 546 of the exhaust valve plate 544 of the flexible tube 54 are provided to exhaust the intake valve 53 and the flexible tube 54. It can be ensured that all the valve plates 544 have good airtightness, thereby achieving the object of the present invention.

DESCRIPTION OF SYMBOLS 10 Air pump 12 Motor 122 Rotating shaft 14 Motor fixed base 16 Rotating crank 162 Eccentric shaft 20 Air suction member 30 Air discharge member 32 Exhaust hole 34 Guide groove 40 Air chamber fixed base 42 Storage hole 44 Air hole 50 Air chamber 51 Plate body 52 Hollow Extendable part 53 Intake valve 532 Valve body 534 Connecting rib 54 Flexible tube 542 Cut groove 544 Exhaust valve plate 546 Reinforcement rib 60 Pressure control lever 62 Insertion hole 64 Clamp part 642 Fixing hole 644 Groove P1 Compression position P2 Expansion position

Claims (5)

An air pump having good airtightness that performs air supply and exhaust operations by driving a motor,
An air suction member having an air chamber fixed base and an air chamber, and an air discharge member;
The air chamber fixing base has a storage hole and an air hole,
The air chamber has a plate, a hollow telescopic part, an intake valve, and a flexible tube, the plate is fixed to the air chamber fixed base, and the hollow telescopic part drives the motor. So as to operate between the compressed position and the expanded position, the plate body extends outward from one surface of the plate body and is accommodated in the storage hole of the air chamber fixing base, and the intake valve is attached to the plate body. Provided to movably cover an air hole of the air chamber fixing base, the flexible tube extending outward from the other side surface of the plate body, and provided with a plurality of kerfs, Are divided into a plurality of exhaust valve plates, and a reinforcing rib is provided on the inner wall surface of each exhaust valve plate,
The air discharge member is provided to cover the air chamber of the air suction member and has an exhaust hole and a guide groove, and the exhaust hole communicates with a hollow telescopic portion of the air chamber. A flexible tube is housed inside, and the guide groove communicates between the hollow telescopic part of the air chamber and the intake valve so as to guide the air passing through the intake valve into the hollow telescopic part. Air pump with good airtightness.   The air suction member connects the motor and the hollow expansion / contraction part of the air chamber, and drives the motor to operate the hollow expansion / contraction part of the air chamber between the compression position and the expansion position. The air pump having good airtightness according to claim 1, further comprising:   The pressure control lever has a clamp portion provided with a fixing hole and a groove communicating with the fixing hole, and a bottom end of a hollow telescopic portion of the air chamber is sandwiched in the fixing hole via the groove. The air pump having good airtightness according to claim 2, which is fixed.   The intake valve of the air chamber has a valve body that covers an air hole of the air chamber fixed base, and at least two connecting ribs connected between the plate body and the valve body. The air pump which has favorable airtightness as described in any one of these.   The air pump having good airtightness according to claim 4, wherein the number of the connecting ribs is 3 and they are installed at equal intervals.

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