CN210106088U

CN210106088U - Dual-purpose inflating pump

Info

Publication number: CN210106088U
Application number: CN201920505984.7U
Authority: CN
Inventors: 陈校波; 陈鑫; 戴志鹏; 叶峰
Original assignee: ZHEJIANG WEIBANG MECHANICAL AND ELECTRICAL TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG WEIBANG MECHANICAL AND ELECTRICAL TECHNOLOGY Co Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-02-21
Anticipated expiration: 2029-04-15

Abstract

The utility model relates to a dual-purpose inflating pump belongs to air pump technical field, including the pump body, handle and intervalve, the top of the pump body is equipped with the upper cover, the top of intervalve is exposed in the upper cover and its top is equipped with the handle, the lower extreme and the intervalve intercommunication of handle form air outlet channel, the bottom of intervalve is equipped with the piston, the inner wall cooperation of piston and the pump body, be equipped with the gas outlet on the handle, on cover the induction port that is equipped with the interior cavity intercommunication with the pump body, be equipped with first one-way diaphragm in the induction port, the bottom of piston is equipped with the one-way diaphragm of second, form the air chamber between piston and the upper cover, form down the air chamber between the bottom of piston and the pump body. The utility model has simple structure, reasonable design, convenient operation and stable connection; meanwhile, the bidirectional inflating and air extracting functions can be realized, and the application range is wide.

Description

Dual-purpose inflating pump

Technical Field

The utility model relates to a dual-purpose inflating pump belongs to air pump technical field.

Background

Along with the popularization of inflatable products, the types of inflating pumps are more and more abundant. The inflating device mainly provides an air source for inflating products, and the inflating becomes the main function of the inflating pump. However, the volume of the inflated product after deflation directly affects the convenience of storage, thus placing a demand for air extraction equipment. There are not few aspirator pumps in the existing market, can take out the product inside into the vacuum, realize the product and accomodate the minimizing of volume, but same product needs two equipment to inflate, bleed, is convenient and economic inadequately.

Patent zl201020111370.x proposes an air pump capable of realizing inflation and air inflation, wherein an air inlet air guide chamber and an air outlet air guide chamber are arranged in a piston of the air pump, one-way valve ports for allowing air to enter a body from the air inlet air guide chamber are formed on the surfaces of upper and lower pistons of the air inlet air guide chamber, and one-way valve ports for allowing air to enter the air outlet air guide chamber from the body are formed on the surfaces of upper and lower pistons of the air outlet air guide chamber. This piston has a drawback in that a plurality of fittings need to be bonded to each piston, so that labor costs are high, and the bonding quality of the fittings affects the airtightness of the air pump. The corresponding inflating pump also adopts a double-pipe structure, so that the overall cost is higher.

In view of this, the present inflation pump can be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a dual-purpose inflating pump for solving the defects in the prior art.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a dual-purpose inflating pump, includes the pump body, handle and intermediate tube, the top of the pump body is equipped with the upper cover, the top of intermediate tube is exposed in the upper cover and its top is equipped with the handle, the lower extreme and the intermediate tube intercommunication of handle form air outlet channel, the bottom of intermediate tube is equipped with the piston, the piston cooperates with the inner wall of the pump body, be equipped with the gas outlet on the handle, on cover the induction port that is equipped with the interior cavity intercommunication with the pump body, be equipped with first one-way diaphragm in the induction port, the bottom of piston is equipped with the one-way diaphragm of second, form the upper air chamber between piston and the upper cover, form air chamber down between the bottom of piston and the pump body.

Preferably, a sealing ring is arranged on the piston. The sealing ring is arranged to ensure the sealing connection between the piston and the inner wall of the pump body.

Preferably, the lower part of the piston is provided with a plurality of bosses attached to the outer wall of the piston, and after the piston is assembled with the sealing ring, a gap is formed between the sealing ring and the bosses or the top end of the piston. The sealing ring moves up and down along with the piston to realize that the sealing ring seals the upper part of the piston so as to enable the gas of the lower air chamber to flow, or realize that the sealing ring seals the lower part of the piston so as to realize the gas flow of the upper air chamber.

Preferably, the upper cover is in threaded connection with the top end of the pump body, and the piston is in threaded connection with the bottom of the middle pipe. The threaded connection is not only tight in connection, but also convenient to take and place, and is convenient and practical.

Preferably, the air outlet and the air suction port are tubular, and the outer walls of the air outlet and the air suction port are provided with threads. The outer parts of the air outlet and the air suction port are provided with threads which are connected with the threads of the air pipe to be inflated or exhausted, so that the structure is stable and the operation is convenient.

Preferably, the bottom of the pump body is provided with a pedal, the top surface of the pedal is provided with a recess, and the top surface and the bottom surface of the pedal are both provided with anti-skidding blocks. The pedal is convenient for pulling the air pump to slide up and down, and the anti-skid block plays a role in stabilizing the air pump.

The utility model has the advantages that:

the utility model has simple structure, reasonable design, convenient operation and stable connection; meanwhile, the bidirectional inflating and air extracting functions can be realized, and the application range is wide.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is a cross-sectional view of the present invention in a depressed state;

FIG. 3 is a diagram of the structure of the piston of the present invention;

FIG. 4 is a state diagram of the air suction port when the utility model is pressed down;

FIG. 5 is a state diagram of the piston when the utility model is pressed down;

FIG. 6 is a state diagram of the air suction port when the utility model is pulled up;

fig. 7 is a state diagram of the piston when the utility model is pulled up.

In the figure: 1-a pump body; 1-1-upper air chamber; 1-2-lower air chamber; 2-an intermediate pipe; 2-1-an air outlet channel; 3-covering the cover; 3-1-suction port; 4-a grip; 4-1-gas outlet; 5-a piston; 6-a first unidirectional membrane; 7-sealing ring; 8-second unidirectional membrane.

Detailed Description

The technical solution of the present invention is further illustrated by the following embodiments and accompanying drawings.

A dual-purpose inflating pump comprises a pump body 1, a handle 4 and a middle pipe 2, wherein an upper cover 3 is arranged at the top end of the pump body 1, the top of the middle pipe 2 is exposed out of the upper cover 3, the handle 4 is arranged at the top of the middle pipe, the lower end of the handle 4 is communicated with the middle pipe 2 to form an air outlet channel 2-1, a piston 5 is arranged at the bottom of the middle pipe 2, the piston 5 is matched with the inner wall of the pump body 1, an air outlet 4-1 is formed in the handle 4, an air suction port 3-1 communicated with the inner cavity of the pump body 1 is formed in the upper cover 3, a first one-way diaphragm 6 is arranged in the air suction port 3-1, a second one-way diaphragm 8 is arranged at the bottom of the piston 5, an upper air chamber 1-1 is formed between the piston 5 and the upper cover 3, and a lower. The utility model has the advantages of simple structure, reasonable in design, convenient operation connects firmly.

In the embodiment of the application, a sealing ring 7 is arranged on the piston 5, a plurality of bosses 5-1 attached to the outer wall of the piston are arranged on the lower portion of the piston, and gaps are formed between the sealing ring 7 and the bosses 5-1 or the top end of the piston 5 after the sealing ring 7 is assembled on the piston 5.

The sealing ring 7 is arranged to ensure the sealing connection between the piston 5 and the inner wall of the pump body 1. The sealing ring 7 moves up and down along with the piston 5, so that the sealing ring 7 seals the upper part of the piston 5 to enable the gas of the lower gas chamber 1-2 to flow, or the sealing ring 7 seals the lower part of the piston 5 to enable the gas of the upper gas chamber 1-1 to flow.

In the embodiment of the application, the upper cover 3 is in threaded connection with the top end of the pump body 1, and the piston 5 is in threaded connection with the bottom of the middle pipe 2; the air outlet 4-1 and the air suction port 3-1 are tubular, and threads are arranged on the outer walls of the air outlet 4-1 and the air suction port 3-1; the bottom of the pump body 1 is provided with a pedal plate, the top surface of the pedal plate is provided with a recess, and the top surface and the bottom surface of the pedal plate are both provided with anti-skidding blocks.

The threaded connection is not only tight in connection, but also convenient to take and place, and convenient and practical; the outer parts of the air outlet 4-1 and the air suction port 3-1 are provided with threads which are connected with air pipes to be inflated or exhausted in a threaded manner, so that the structure is stable and the operation is convenient; the pedal is convenient for pulling the air pump to slide up and down, and the anti-skid block plays a role in stabilizing the air pump.

When the grip 4 is pressed down, the pressure of the lower air chamber 1-2 is increased, at the moment, the second one-way diaphragm 8 at the bottom of the piston 5 is lifted, and the air in the lower air chamber 1-2 enters the air outlet channel 2-1 through the second one-way diaphragm 8 and is discharged from the air outlet 4-1 of the grip 4. Meanwhile, when the piston 5 is pressed down, the air pressure of the upper air chamber 1-1 is reduced to be lower than the atmospheric pressure, the first one-way diaphragm 6 in the air suction port 3-1 of the upper cover is lifted, and air enters the upper air chamber 1-1 from the air suction port 3-1.

When the handle 4 is pulled upwards, the second one-way diaphragm 8 at the bottom of the piston 5 is closed. The air pressure of the upper air chamber 1-1 is increased, at the moment, the first one-way diaphragm 6 in the air suction port 3-1 of the upper cover is closed, and the air of the upper air chamber 1-1 enters the lower air chamber through the gap between the piston 5 and the sealing ring 7 to prepare for next pressing.

The handle 4 is pulled up and pressed down once, which is a cycle. When the air pipe to be inflated is connected with the air outlet 4-1 of the handle 4, inflating the product; when the air pipe to be pumped is connected with the air suction port 3-1 of the upper cover 3, the product is pumped.

The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the claims.

Claims

1. A dual-purpose inflating pump comprises a pump body (1), a handle (4) and a middle pipe (2), wherein an upper cover (3) is arranged at the top end of the pump body (1), the top of the middle pipe (2) is exposed out of the upper cover (3) and provided with the handle (4) at the top, the lower end of the handle (4) is communicated with the middle pipe (2) to form an air outlet channel (2-1), a piston (5) is arranged at the bottom of the middle pipe (2), the piston (5) is matched with the inner wall of the pump body (1),

the novel vacuum pump is characterized in that an air outlet (4-1) is formed in the handle (4), an air suction port (3-1) communicated with an inner cavity of the pump body (1) is formed in the upper cover (3), a first one-way membrane (6) is arranged in the air suction port (3-1), a second one-way membrane (8) is arranged at the bottom of the piston (5), an upper air chamber (1-1) is formed between the piston (5) and the upper cover (3), and a lower air chamber (1-2) is formed between the piston (5) and the bottom of the pump body (1).

2. The dual-purpose inflation pump according to claim 1, wherein the piston (5) is provided with a sealing ring (7).

3. The dual-purpose inflation pump according to claim 2, wherein the lower portion of the piston is provided with a plurality of bosses (5-1) attached to the outer wall of the piston.

4. The dual-purpose inflation pump according to claim 1, wherein the upper cover (3) is screwed with the top end of the pump body (1), and the piston (5) is screwed with the bottom of the intermediate pipe (2).

5. The dual-purpose inflation pump according to claim 1, wherein the air outlet (4-1) and the air inlet (3-1) are tubular, and the outer walls of the air outlet (4-1) and the air inlet (3-1) are provided with threads.

6. The dual-purpose inflation pump according to claim 1, wherein a foot pedal is provided at the bottom of the pump body (1), a recess is provided at the top surface of the foot pedal, and anti-slip blocks are provided at both the top surface and the bottom surface of the foot pedal.