TWM615735U - Double piston pump - Google Patents

Abstract

This creative double-piston pump includes a nozzle head and a cylinder group. The cylinder group includes a first cylinder, a second cylinder and a connecting pipe. One end of the first cylinder is connected to the nozzle head, and the connecting pipe is adjacent to the air nozzle. One end of the nozzle head is provided with a first piston, the first piston is in contact with the inner periphery of the first cylinder, and the communicating tube is opposite to the end of the nozzle head with a second piston, the second piston contacts the second cylinder On the inner periphery, the connecting pipe connects the first cylinder and the second cylinder, and the air pump can provide a more intuitive way of use through the above structure.

Description

Double piston pump

This creation mainly reveals a kind of pump, especially a double-piston pump.

Please refer to the "simple pump" patent case of China Patent No. I689662, which is an inflator that includes a body, a pressurizing component, and a nozzle head component. The body is provided with a barrel and a head. , The barrel is connected with the head to form an integral structure, the head is connected to one end of the barrel, a pressurizing space is provided in the barrel, a through slot is penetrated in the head, and a through slot is provided between the pressurized space There is a connecting channel which connects the slot and the pressurizing space. One end of the pressurizing assembly is slidably arranged in the pressurizing space relative to the body. The tuyere head assembly includes a pressing device which is arranged in the pressurizing space. In the groove, the pressing device includes an ejector seat, and the sleeve of the ejector seat is provided with a one-way anti-return ring, and the one-way anti-return ring is only used for the passage of gas from the connecting channel to the socket end.

In order to facilitate the operation of the user, a handle is provided at the end of the above-mentioned pump, but the setting of the handle will increase the length of the pump. In order to reduce the length of the pump, the handle of the above-mentioned pump will be sleeved on the barrel after the compression assembly is compressed. In addition, however, the pump needs to be operated with both hands. One hand holds the handle and the other holds the barrel. If the user's hand holding the barrel is accidentally too far back, the handle may hit the grip after the compression assembly is compressed. The hand of the barrel, the user's hand may even be caught in the gap between the barrel and the handle and be injured, or the user may not press the handle to the bottom when compressing the pressurizing component to avoid injury, causing the pump to inflate low efficiency.

In view of the lack of the above-mentioned conventional structure, the author designed a double-piston pump, which can overcome all the shortcomings of the above-mentioned conventional structure.

The main purpose of the double-piston pump of this invention is to provide a pump including a tuyere head and a cylinder group. The cylinder group includes a first cylinder, a second cylinder and a connecting pipe. The first cylinder One end of the communicating tube is connected to the tuyere head, and one end of the communicating pipe adjacent to the tuyere head is provided with a first piston, the first piston contacts the inner periphery of the first cylinder, and the communicating pipe is opposite to the tuyere head A second piston is provided at one end of the second cylinder. The second piston contacts the inner periphery of the second cylinder. The connecting pipe connects the first cylinder and the second cylinder. The pump can provide a more intuitive How to use it.

The end of the first cylinder opposite to the tuyere head is provided with a first end cover, the end of the second cylinder adjacent to the tuyere head is provided with a second end cover, and the communicating pipe passes through one end adjacent to the tuyere head. Through the first end cover, the end of the communicating tube opposite to the tuyere head passes through the second end cover.

The first piston is sleeved on one end of the communicating pipe and is connected to the communicating pipe in a screw-locking manner, and the second piston is sleeved on an end of the communicating pipe opposite to the first piston and is connected to the communicating pipe in a screw-locking manner. Tube.

The inner space of the first cylinder is provided with a first zone and a second zone. The first zone is arranged on a side of the first piston adjacent to the tuyere head. The first zone communicates with the tuyere head. The second zone is arranged between the first piston and the first end cover. The first piston is only for air flow from the second zone to the first zone. The inner space of the second cylinder is provided with a third zone and A fourth zone, the third zone is arranged between the second piston and the second end cover, the fourth zone is arranged on the side of the second piston opposite to the tuyere head, and the second piston is only The air flow flows from the third zone to the fourth zone. When the cylinder group is stretched, the air in the second zone flows to the first zone, and the air in the third zone flows to the fourth zone. When the cylinder group is compressed, the air in the second zone flows to the fourth zone. The air in the fourth zone flows to the first zone through the communicating pipe and enters the tuyere head.

When the cylinder group is compressed, the second end cover abuts against the first end cover, and when the cylinder group is stretched, the first end cover and the second end cover are separated from each other.

The cross-sectional shape of the outer periphery of the first cylinder in the radial direction is the same as that of the second cylinder in the radial direction. The width of the outer periphery of the first cylinder in the radial direction is the same as that of the second cylinder in the radial direction The width of the outer periphery is the same.

The first cylinder forms a first length from an end adjacent to the tuyere head to an end opposite to the tuyere head, and the second cylinder forms a first length from an end adjacent to the tuyere head to an end opposite to the tuyere head A second length equals the first length. The cross-sectional shape of the inner peripheral edge of the first cylinder in the radial direction is the same as the cross-sectional shape of the inner peripheral edge of the second cylinder in the radial direction. The width of the inner periphery of the cylinder in the radial direction is the same as the width of the inner periphery of the second cylinder in the radial direction.

The end of the second cylinder opposite to the first cylinder is connected with a back cover, and the back cover closes the end of the second cylinder opposite to the first cylinder.

One end of the tuyere head adjacent to the first cylinder is provided with a one-way valve, and the one-way valve only allows airflow to enter the tuyere head from the first cylinder.

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

Regarding the technology, means and effects used in this creation, a preferred embodiment is given in conjunction with the detailed description below, which is for illustrative purposes only, and is not limited by this structure in the patent application.

Refer to Figures 1 to 5, which are the three-dimensional appearance, three-dimensional exploded view, cross-sectional structure diagram, the use state diagram when the cylinder group is stretched, and the use state diagram when the cylinder group is compressed. The creative pump 10 includes a tuyere head 20 and a cylinder group 30; among them:

The cylinder group 30 includes a first cylinder 31, a second cylinder 32, and a connecting pipe 33. One end of the first cylinder 31 is connected to the tuyere head 20, and the first cylinder 31 is opposite to the tuyere head 20. A first end cover 311 is provided at one end of the second cylinder 32, a second end cover 321 is provided at one end of the second cylinder 32 adjacent to the tuyere head 20, and an end of the communication pipe 33 adjacent to the tuyere head 20 passes through the first The end cover 311 is also provided with a first piston 331 at the end, the first piston 331 contacts the inner periphery of the first cylinder 31, and the communicating pipe 33 passes through the second end cover opposite to the end of the tuyere 20 321 is provided with a second piston 332 at the end, the second piston 332 contacts the inner periphery of the second cylinder 32, the communication pipe 33 connects the first cylinder 31 with the second cylinder 32, the first piston 331 The second piston 332 is sleeved on one end of the communicating pipe 33 and connected to the communicating pipe 33 in a screw-locking manner. The second piston 332 is sleeved on an end of the communicating pipe 33 opposite to the first piston 331 and is connected to the communicating pipe 33 in a screw-locking manner. Connecting pipe 33.

The inner space of the first cylinder 31 is provided with a first zone 312 and a second zone 313. The first zone 312 is arranged on the side of the first piston 331 adjacent to the tuyere head 20, and the first zone 312 is connected to The tuyere head 20 communicates, the second zone 313 is arranged between the first piston 331 and the first end cover 311, and the first piston 331 is only for air flow from the second zone 313 to the first zone 312, The inner space of the second cylinder 32 is provided with a third zone 322 and a fourth zone 323, the third zone 322 is arranged between the second piston 332 and the second end cover 321, and the fourth zone 323 is arranged On the side of the second piston 332 opposite to the tuyere head 20, the second piston 332 is only for air flow from the third zone 322 to the fourth zone 323. When the cylinder group 30 is stretched (as shown in FIG. 4) (Shown), the air in the second zone 313 flows to the first zone 312, the air in the third zone 322 flows to the fourth zone 323, when the cylinder group 30 is compressed (as shown in FIG. 5), the fourth zone 323 The air flows to the first zone 312 through the communication pipe 33 and enters the tuyere 20.

When the cylinder group 30 is compressed, the second end cover 321 abuts against the first end cover 311, and when the cylinder group 30 is stretched, the first end cover 311 and the second end cover 321 are separated from each other.

The cross-sectional shape of the outer periphery of the first cylinder 31 in the radial direction is the same as that of the second cylinder 32 in the radial direction. The width of the outer periphery of the first cylinder 31 in the radial direction is the same as that of the second cylinder 32. The width of the outer periphery in the radial direction is the same.

The first cylinder 31 forms a first length L1 from an end adjacent to the tuyere head 20 to an end opposite to the tuyere head 20, and the second cylinder 32 forms a first length L1 from an end adjacent to the tuyere head 20 to an end opposite to the tuyere head 20. The distance between one end of the tuyere head 20 forms a second length L2, the second length L2 is equal to the first length L1, the cross-sectional shape of the inner peripheral edge of the first cylinder 31 in the radial direction and the second cylinder 32 along the same The cross-sectional shape of the inner periphery in the radial direction is the same, and the width of the inner periphery of the first cylinder 31 in the radial direction is the same as the width of the inner periphery of the second cylinder 32 in the radial direction.

The end of the second cylinder 32 opposite to the first cylinder 31 is connected with a rear cover 324, and the rear cover 324 closes the end of the second cylinder 32 opposite to the first cylinder 31.

An end of the tuyere head 20 adjacent to the first cylinder 31 is provided with a one-way valve 21, and the one-way valve 21 only allows airflow to enter the tuyere head 20 from the first cylinder 31.

The pump 10 can provide a more intuitive way of use through the above-mentioned structure. When the pump 10 is in use, the user can hold the first cylinder 31 and the second cylinder 32 with both hands. Because the first cylinder 31 and the second cylinder 32 will not overlap, the user can operate with confidence , There will be no pinch problems.

From the above, it can be concluded that this creation has the following advantages:

1. The double-piston pump of this creation, where the pump includes a tuyere head and a cylinder group, the cylinder group includes a first cylinder, a second cylinder and a connecting pipe, one end of the first cylinder is connected In the tuyere head, a first piston is provided at one end of the communicating pipe adjacent to the tuyere head, the first piston contacts the inner periphery of the first cylinder, and the communicating pipe is opposite to one end of the tuyere head The part is provided with a second piston, the second piston contacts the inner periphery of the second cylinder, the connecting pipe connects the first cylinder and the second cylinder, and the pump can provide a more intuitive way of use through the above-mentioned structure.

However, the above is only the preferred embodiment of this creation, and when it cannot be used to limit the scope of implementation of this creation, so all numerical changes or replacement of equivalent components or equivalents made in accordance with the scope of the patent application for this creation are mentioned. Changes and modifications should still fall within the scope of this new patent.

10: pump 20: wind mouth head 21: Check valve 30: cylinder group 31: The first cylinder 311: first end cap 312: District One 313: Second District 32: second cylinder 321: second end cap 322: The Third District 323: District Four 324: back cover 33: Connecting pipe 331: First Piston 332: Second Piston L1: first length L2: second length

Figure 1: The three-dimensional appearance of the double-piston pump for this creation. Figure 2: The three-dimensional exploded view of the double-piston pump for this creation. Figure 3: The cross-sectional structure diagram of the double-piston pump for this creation. Figure 4: The drawing of the use state of the double-piston pump cylinder group in this creation. Figure 5: The use state diagram of the double-piston pump cylinder group of this creation when it is compressed.

10: pump

20: wind mouth head

30: cylinder group

31: The first cylinder

32: second cylinder

324: back cover

Claims (9)

A double-piston pump, which includes: A tuyere A cylinder group, the cylinder group includes a first cylinder, a second cylinder and a communicating pipe, one end of the first cylinder is connected to the tuyere head, the communicating pipe is provided with one end adjacent to the tuyere head A first piston that contacts the inner periphery of the first cylinder, and one end of the communication pipe opposite to the tuyere is provided with a second piston, the second piston contacts the inner periphery of the second cylinder , The communication pipe connects the first cylinder and the second cylinder. The dual-piston pump according to claim 1, wherein the first cylinder is provided with a first end cover at the end opposite to the tuyere head, and the second cylinder is provided with a second end at the end adjacent to the tuyere head An end of the communicating tube adjacent to the tuyere head passes through the first end cap, and an end of the communicating pipe opposite to the tuyere head passes through the second end cap. The dual-piston pump according to claim 2, wherein the first piston is sleeved on one end of the communicating pipe and is screw-locked to the communicating pipe, and the second piston is sleeved on the communicating pipe opposite to the first piston One end of a piston is connected to the communication pipe in a screw lock manner. The double-piston air pump according to claim 2 or 3, wherein the inner space of the first cylinder is provided with a first zone and a second zone, and the first zone is arranged on the first piston adjacent to the tuyere head On one side, the first zone communicates with the tuyere head, the second zone is arranged between the first piston and the first end cap, and the first piston is only for air flow from the second zone to the first zone , The inner space of the second cylinder is provided with a third zone and a fourth zone, the third zone is arranged between the second piston and the second end cover, and the fourth zone is arranged opposite to the second piston On one side of the nozzle head, the second piston is only for air flow from the third zone to the fourth zone. When the cylinder group is stretched, the air in the second zone flows to the first zone, and the third zone The air flows to the fourth zone, and when the cylinder group is compressed, the air in the fourth zone flows to the first zone through the connecting pipe and enters the tuyere head. The double-piston pump according to claim 4, wherein when the cylinder group is compressed, the second end cover abuts against the first end cover, and when the cylinder group is stretched, the first end cover and the second end cover The covers are separated from each other. The double-piston pump according to claim 5, wherein the cross-sectional shape of the outer peripheral edge of the first cylinder in the radial direction is the same as the cross-sectional shape of the outer peripheral edge of the second cylinder in the radial direction, and the first cylinder is in the radial direction The width of the outer periphery of the second cylinder is the same as the width of the outer periphery of the second cylinder in the radial direction. The double-piston pump according to claim 6, wherein the first cylinder forms a first length from an end adjacent to the tuyere head to an end opposite to the tuyere head, and the second cylinder is formed by a distance adjacent to the tuyere head. The distance from one end of the nozzle head to the end opposite to the nozzle head forms a second length, and the second length is equal to the first length. The cross-sectional shape of the inner periphery in the radial direction is the same, and the width of the inner periphery of the first cylinder in the radial direction is the same as the width of the inner periphery of the second cylinder in the radial direction. The dual-piston pump according to claim 7, wherein the end of the second cylinder opposite to the first cylinder is connected with a back cover, and the back cover closes the end of the second cylinder opposite to the first cylinder. The dual-piston air pump according to claim 8, wherein the tuyere head is provided with a one-way valve at one end adjacent to the first cylinder, and the one-way valve only allows airflow to enter the tuyere head from the first cylinder.

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