TW202130907A - Three-stage booster air pump - Google Patents

Abstract

A three-stage booster air pump includes a valve head and a cylinder assembly. The cylinder assembly includes a communication tube, a first cylinder, and a second cylinder. One end of the communication tube is connected to the valve head, and another end of the communication tube is provided with a first piston. The first cylinder is sleeved outside the communication tube and is provided with a second piston adjacent to the valve head. One end of the first cylinder opposite to the valve head is provided with a first end cover. The second cylinder is sleeved outside the first cylinder. One end of the second cylinder is connected to the valve head and the second cylinder is provided with a second end cover opposite to the valve head. One end of the second cylinder adjacent to the valve head is provided with a check valve. The check valve is only for air flow from the outside to the second cylinder. The air pump can pressurize the air easily and quickly through the above structure.

Description

Three-stage pressurized pump

The present invention mainly discloses an inflator, especially a three-section pressurized inflator.

Please refer to the "Variable Pressure Inflator" patent case of my country Patent No. I645111, which is a variable pressure inflator that includes a first cylinder, a second cylinder, a first air pipe, a piston group, a connecting device, and a venting device. The first cylinder, the second cylinder and the first air pipe are coaxially arranged and can move relative to the axial direction. The piston assembly can compress the air in the first cylinder and selectively compress the air in the second cylinder. The connecting device is arranged in the first cylinder and is suitable for connecting the object to be inflated. The air venting device includes a connecting piece and a switching piece. The connecting piece is connected to the second cylinder and has an air bleed hole communicating with the second cylinder. The switching piece is connected to the connecting piece and has an air guiding groove that selectively communicates with the bleed hole and the outside.

The reason why the pump has a variable pressure function is to increase the pressure output so that the user can drive the tire to the preset air pressure in a more time-saving and labor-saving way. However, the above-mentioned pump only has a two-stage pressurization structure Although it can increase the air pressure output of the pump, it still has some shortcomings.

In view of the shortcomings of the above-mentioned conventional structure, the present inventor designed a three-stage pressurized pump, which can overcome all the shortcomings of the above-mentioned conventional structure.

The main purpose of the three-stage pressurized pump of the present invention is to provide a pump including a tuyere head and a cylinder group. The cylinder group includes a connecting pipe, a first cylinder and a second cylinder. One end of the tube is connected to the tuyere head, the communicating pipe is provided with a first piston at one end opposite to the tuyere head, the first cylinder sleeve is arranged outside the communicating pipe, and the first piston contacts the first cylinder On the inner periphery, the first cylinder is provided with a second piston at one end adjacent to the tuyere head, the first cylinder is provided with a first end cover at the end opposite to the tuyere head, and the second cylinder sleeve is provided on the first cylinder. Outside a cylinder, the second piston contacts the outer periphery of the communicating pipe and the inner periphery of the second cylinder, one end of the second cylinder is connected to the tuyere head, and the second cylinder is arranged opposite to the end of the tuyere head There is a second end cover, the second end cover contacts the outer periphery of the first cylinder, the inner space of the second cylinder is provided with a first zone and a second zone, the first zone is arranged on the second piston One side adjacent to the tuyere head, the second zone is arranged on the side of the second piston opposite to the tuyere head, and one end of the second cylinder adjacent to the tuyere head is provided with a one-way valve, the one-way The valve is only for air flow from the outside to the first zone, and the air pump can easily and quickly pressurize the air through the above-mentioned structure.

The inner space of the first cylinder is provided with a third zone and a fourth zone. The third zone is arranged on the side of the first piston adjacent to the tuyere head, and the fourth zone is arranged on the opposite side of the first piston. On one side of the tuyere head, the first piston is only for air flow from the third zone to the fourth zone.

The second piston is only for air flow from the first zone to the second zone, and the first cylinder is provided with a side hole along the radial direction, and the side hole communicates the second zone and the third zone.

A check valve is arranged between the communication pipe and the first piston, and the check valve only allows air flow from the fourth zone to enter the internal space of the communication pipe via the first piston.

The second end cover is only for air flow from the outside to the second zone.

A holding member is connected to the first end cover on one side adjacent to the tuyere head, the holding member is tubular, and the holding member can be sleeved on the outer periphery of the second cylinder.

Other purposes, advantages, and novelty of the present invention will be more apparent from the following detailed description and related drawings.

Regarding the technology, means and effects adopted by the present invention, a preferred embodiment is given below in conjunction with the drawings. This is for illustrative purposes only, and is not limited by this structure in the patent application.

Referring to Figures 1 to 4, the three-stage supercharged pump of the present invention is a three-dimensional appearance view, a three-dimensional exploded view, a drawing of the use state of the drawn cylinder group, and a view of the use state of the compressed cylinder group. The pump 10 of the present invention includes a tuyere head 20 and a cylinder group 30; among them:

The cylinder group 30 includes a communicating pipe 31, a first cylinder 32, and a second cylinder 33. One end of the communicating pipe 31 is connected to the tuyere head 20, and the communicating pipe 31 is opposite to one end of the tuyere head 20. A first piston 311 is provided, the first cylinder 32 is sleeved outside the communicating pipe 31, the first piston 311 contacts the inner periphery of the first cylinder 32, and the first cylinder 32 is adjacent to one end of the tuyere 20 A second piston 321 is provided. One end of the first cylinder 32 opposite to the tuyere head 20 is provided with a first end cover 322. The second cylinder 33 is sleeved outside the first cylinder 32. The second piston 321 contacts the outer periphery of the communicating pipe 31 and the inner periphery of the second cylinder 33. One end of the second cylinder 33 is connected to the tuyere head 20, and the second cylinder 33 is provided with an end opposite to the tuyere head 20. A second end cover 331 which contacts the outer periphery of the first cylinder 32.

The inner space of the second cylinder 33 is provided with a first zone 332 and a second zone 333. The first zone 332 is arranged on the side of the second piston 321 adjacent to the tuyere 20, and the second zone 333 is arranged On the side of the second piston 321 opposite to the tuyere head 20, the second cylinder 33 is provided with a check valve 334 at one end adjacent to the tuyere head 20. The check valve 334 is only for air flow from the outside to the tuyere In the first zone 332, the second piston 321 is only for air flow from the first zone 332 to the second zone 333, and the second end cover 331 is for air flow only from the outside to the second zone 333.

The inner space of the first cylinder 32 is provided with a third zone 323 and a fourth zone 324, the third zone 323 is arranged on the side of the first piston 311 adjacent to the tuyere 20, and the fourth zone 324 is arranged On the side of the first piston 311 opposite to the tuyere head 20, the first piston 311 is only for air flow from the third zone 323 to the fourth zone 324, and the first cylinder 32 is penetrated in the radial direction. The side hole 325 communicates with the second area 333 and the third area 323.

A check valve 312 is provided between the communication pipe 31 and the first piston 311, and the check valve 312 only allows airflow from the fourth zone 324 to enter the internal space of the communication pipe 31 via the first piston 311.

The first end cover 322 is connected to a side adjacent to the nozzle head 20 with a holding member 326, the holding member 326 is tubular, and the holding member 326 can be sleeved on the outer periphery of the second cylinder 33.

The pump 10 can easily and quickly pressurize air through the above-mentioned structure. When the pump 10 is in use, the nozzle head 20 can be connected to the air nozzle 90. When the cylinder group 30 is stretched, external air can be drawn into the first zone 332, because the space of the first zone 332 is In the closed state, when the cylinder group 30 is compressed, air can be squeezed into the second area 333 and the third area 323 by compressing the space of the first zone 332 to achieve the effect of supercharging. Similarly, the cylinder group is compressed At 30 o'clock, the air in the third zone 323 can also be squeezed into the fourth zone 324, and the air in the fourth zone 324 will be squeezed into the interior of the communicating pipe 31, finally achieving a three-stage pressurization effect.

From the above, it can be concluded that the present invention has the following advantages:

1. This is a three-stage pressurized pump of the present invention, wherein the pump includes a tuyere head and a cylinder group, the cylinder group includes a communicating pipe, a first cylinder and a second cylinder, and one end of the communicating pipe Connected to the tuyere head, the communicating pipe is provided with a first piston at one end opposite to the tuyere head, the first cylinder sleeve is arranged outside the communicating pipe, and the first piston contacts the inner periphery of the first cylinder, One end of the first cylinder adjacent to the tuyere head is provided with a second piston, one end of the first cylinder opposite to the tuyere head is provided with a first end cover, and the second cylinder sleeve is provided outside the first cylinder , The second piston contacts the outer periphery of the communicating pipe and the inner periphery of the second cylinder, one end of the second cylinder is connected to the tuyere head, and the second cylinder is provided with a first end opposite to the tuyere head. Two end covers, the second end cover contacts the outer periphery of the first cylinder, the inner space of the second cylinder is provided with a first zone and a second zone, the first zone is arranged on the second piston adjacent to the wind On one side of the nozzle head, the second area is arranged on the side of the second piston opposite to the tuyere head, and one end of the second cylinder adjacent to the tuyere head is provided with a one-way valve. The air flow flows from the outside to the first zone, and the air pump can easily and quickly pressurize the air through the above-mentioned structure.

However, the above are only the preferred embodiments of the present invention. When they cannot be used to limit the scope of implementation of the present invention, all numerical changes or substitutions of equivalent elements or equivalents made in accordance with the scope of the patent application of the present invention are mentioned. Changes and modifications should still fall within the scope of the invention patent.

10: pump 20: wind mouth head 30: cylinder group 31: Connecting pipe 311: First Piston 312: check valve 32: The first cylinder 321: Second Piston 322: first end cap 323: The Third District 324: District Four 325: side hole 326: Grip 33: second cylinder 331: second end cap 332: District One 333: Second District 334: Check valve 90: Gas Mouth

Figure 1: is a three-dimensional appearance view of the three-stage pressurized pump of the present invention. Figure 2: is a three-dimensional exploded view of the three-stage pressurized pump of the present invention. Fig. 3 is a diagram of the use state of the three-stage pressurized pump of the present invention when the cylinder group is pulled out. Figure 4: is a diagram of the use state of the three-stage pressurized pump compression cylinder group of the present invention.

10: pump

20: wind mouth head

30: cylinder group

322: first end cap

326: Grip

33: second cylinder

Claims (6)

A three-stage pressurized pump, which includes: A tuyere A cylinder group, the cylinder group includes a communicating pipe, a first cylinder and a second cylinder, one end of the communicating pipe is connected to the tuyere head, the communicating pipe opposite to the end of the tuyere head is provided with a first A piston, the first cylinder sleeve is arranged outside the communicating pipe, the first piston contacts the inner periphery of the first cylinder, the first cylinder is provided with a second piston at one end adjacent to the tuyere head, the first cylinder On the contrary, a first end cover is provided at one end of the tuyere head, the second cylinder liner is provided outside the first cylinder, the second piston contacts the outer periphery of the communicating pipe and the inner periphery of the second cylinder, the One end of the second cylinder is connected to the tuyere head, and the end of the second cylinder opposite to the tuyere head is provided with a second end cover, the second end cover contacts the outer periphery of the first cylinder, and the second cylinder The inner space is provided with a first zone and a second zone, the first zone is arranged on the side of the second piston adjacent to the tuyere head, and the second zone is arranged on the second piston opposite to the tuyere head On one side of the second cylinder, one end of the second cylinder adjacent to the tuyere head is provided with a one-way valve, and the one-way valve is only for air flow from the outside to the first zone. The three-stage pressurized pump according to claim 1, wherein the inner space of the first cylinder is provided with a third zone and a fourth zone, and the third zone is arranged on the first piston adjacent to the nozzle head On one side, the fourth zone is arranged on the side of the first piston opposite to the tuyere head, and the first piston is only for air flow from the third zone to the fourth zone. The three-stage pressurized pump according to claim 2, wherein the second piston is only for air flow from the first zone to the second zone, and the first cylinder is radially drilled with a side hole, the side hole Connect the second zone and the third zone. The three-stage pressurized pump according to claim 3, wherein a check valve is provided between the communication pipe and the first piston, and the check valve is only for airflow to enter from the fourth zone through the first piston The internal space of the communicating pipe. The three-stage pressurized pump according to claim 4, wherein the second end cover is only for air flow from the outside to the second zone. The three-stage pressurized pump according to claim 5, wherein the first end cover is connected to a side adjacent to the nozzle head with a holding member, the holding member is tubular, and the holding member can be sleeved on The outer periphery of the second cylinder.

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