TW201427799A - Fluid pumping device with flow diversion structure - Google Patents

Abstract

The present invention provides a fluid pumping device with a pressure reduction structure, which keeps the outlet end of the fluid pumping device to maintain communication with the atmosphere during the process of the fluid pumping device discharging fluid inside a container, so that the outlet end is not completely closed. Accordingly, the high-pressure gas entering into the fluid pumping device forms a pressurized subflow and a discharge subflow and the discharge subflow is guided to the atmosphere via the outlet end.

Description

Fluid delivery device with split structure

The present invention relates to pneumatic tool technology, and more particularly to a fluid delivery device having a split configuration.

According to the fluid delivery device based on the venturi principle, there are many different specific technical contents in the prior art. For example, there is a new type of patent application No. 089222099. The disclosed fluid delivery device specifically provides a flow path for controlling the gas in the venturi, thereby providing a smokable and efficacious use effect, and greatly improving workability.

Furthermore, in the case of the new patent No. 098,222,559, the focus of the prior art is to further improve the fluid delivery device of the prior art, in order to change the external high pressure gas into the state of use of the fluid delivery device. The flow rate of the flow, when the external fluid is sucked into the interior of the container by the conventional fluid delivery device, the flow of the external high-pressure gas can be controlled, and the larger inflow velocity and the inflow can provide better suction. However, when the internal fluid of the container is discharged outward by a conventional fluid delivery device, the flow rate of the external high-pressure gas needs to be restricted, and the inside of the container is prevented from entering due to an instantaneous large amount of gas, so that the fluid in the container is not discharged and the gas is accumulated. In the container, the container is inflated and deformed, and at the same time, the speed of fluid discharge in the container is slowed down; in addition, the new patent has a safety valve to prevent the container from bursting.

The front opening improvement technology can control the inflow of high pressure gas through the inflow end, but In general use, there is usually no additional air pressure adjustment mechanism between the upper fluid feed device and the high pressure gas source. Therefore, the flow rate of the high pressure gas into the container is limited, and the gas pressure inside the container is still very high. However, the expansion of the container cannot be completely avoided, and the safety valve for relieving pressure has been set up, but the safety valve is activated above a set minimum starting pressure, and the safety valve is not yet reached when the starting pressure has not been reached. It does not act, and it is impossible to avoid the expansion of the container. The containers are generally made of polymer materials. After long-term use, the repeated expansion of the pre-opening improvement technology means that The container itself is still repeatedly subjected to external force, which is easy to reduce the strength of the container itself, and is easy to be degenerated, and there is still a need for improvement, and when the pressure value inside the container is near the minimum starting pressure value, The pressure inside the container is not fixed. Therefore, the safety valve will also be activated and closed repeatedly, which will affect the use.

Accordingly, the main object of the present invention is to provide a fluid delivery device having a reduced pressure structure for maintaining a fluid delivery device and an atmosphere at one of the outlets of the fluid delivery device during fluid discharge in the container. Maintaining communication, the outlet end is not completely closed, so that the high pressure gas entering the inside of the fluid delivery device forms a pressurized split and a discharge split, and the discharge split is guided to the atmosphere via the outlet end. .

In order to achieve the above object, the present invention provides a fluid delivery device with a splitting structure, the main technical feature of which is that at the outlet end position of the conventional fluid delivery device, an additional arrangement is provided to guide the gas to The drainage channel in the atmosphere, specifically, the structure comprises a container having an inner closed chamber, a feed port for connecting the inside and the outside of the chamber; a pressure difference generating portion disposed at the The container has an inlet end and an outlet end, and a hollow a pressure difference generating member is disposed between the air inlet end and the air outlet end, and a passage is connected to the pressure difference generating member and the chamber; a gas blocking portion is disposed on the pressure difference generating portion, and Displacement between a blocking and an open position; an air inlet portion is disposed on the container and connected to the air inlet end for connecting with an external high pressure gas delivery line to form an external high pressure gas into the a flow path at the inlet end; and the feature is that when the gas block is located at the blocking position, the gas outlet end is not completely blocked, so that the gas outlet end is connected to the atmosphere; When the gas blocking portion is located at the blocking position, the external high pressure gas entering from the inlet end is split into a pressurized split and a discharge split, so that the pressurized split enters the chamber via the differential pressure generating portion. And causing the discharge split to escape to the atmosphere via the gas outlet.

Further, the outlet end may be a single-hole gas flow passage, and may also be a plurality of gas flow passages, and the movement path of the gas barrier portion between the blocking position and the open position may be relative to the The reciprocating axial movement of the outlet end shaft axis in the axial direction may also be a reciprocating rotation in the radial direction with respect to the outlet end.

Further, when the air outlet end is a single-hole gas flow passage and the gas-blocking portion is rotated radially, the gas barrier portion may have a pivot shaft, and the one-piece rotor body is located at one axial end of the pivot shaft. And attaching one side of the sheet surface to the peripheral side of the orifice of the outlet end, so that the pivot shaft pivots between the open position and the blocked position.

Wherein, the gas blocking portion further comprises a notch disposed on the rotating body, and when the rotating body is located at the blocking position, the exhausting notch and the outlet opening are staggered to form an intersection An exhaust space for the discharge split to escape to the atmosphere.

Wherein, the other end opening of the air outlet end and the notch system are respectively fan-shaped.

Further, when the gas outlet end is a single pore-shaped gas flow channel and the gas barrier portion is axially moved, the gas barrier portion may have a shaft plug with an end coaxially facing the orifice of the gas outlet end. And axially shifting between the open position and the blocking position along the axial direction thereof, and when located at the blocking position, one end abuts against the opening of the air outlet end, and blocks one of the outlet end orifices unit.

Wherein, the gas blocking portion further has a gas discharge gap, and is disposed on one end of the shaft plug. When the shaft plug is located at the blocking position, one end of the shaft plug abuts the opening of the gas outlet end. The exhaust gap connects the outlet end to the atmosphere.

Further, when the gas outlet end is a plurality of pore-shaped gas flow passages, the gas outlet end has an air outlet hole, and a gas outlet hole having a smaller hole diameter than the air outlet hole, when the gas barrier portion is located at the blocking position In the upper case, the orifice of the air outlet is closed, and the air outlet is connected to the atmosphere.

(10) (10') ‧‧‧ Fluid delivery device with split structure

(20) (20’) ‧ ‧ containers

(21)‧‧‧

(22)‧‧‧Capping

(23) ‧ ‧ ‧ room

(24) ‧‧‧Inlet

(30) (30') ‧ ‧ Pressure Difference Generation Department

(31) ‧‧‧Pressure difference generating parts

(32) ‧‧‧ inlet end

(33) (33') ‧ ‧ venting end

(331) (331') ‧ ‧ vents

(332) ‧‧‧End caps

(34) ‧‧‧ channels

(40) (40’) ‧ ‧ dam

(41)‧‧‧ shaft plug

(41’) ‧‧‧ pivot

(42) ‧‧‧ Venting gap

(42’) ‧ ‧ Swiveling

(43’) ‧‧‧Lift

(44’) ‧ ‧ gap

(45’) ‧‧‧Exhaust space

(50) (50’) ‧ ‧ Air intake

(a) ‧ ‧ airflow

(a1) ‧‧‧Pressure shunt

(a2) ‧ ‧ discharge diversion

The first figure is an exploded perspective view of a first preferred embodiment of the present invention.

The second drawing is a combined perspective view of a first preferred embodiment of the present invention.

Figure 3 is a cross-sectional view of the first preferred embodiment of the present invention taken along the line a-a of Figure 2, wherein the gas barrier is located in the open position.

Figure 4 is a cross-sectional view of the first preferred embodiment of the present invention taken along the line a-a of Figure 2, wherein the gas barrier is located at the blocking position.

Figure 5 is an exploded perspective view of a second preferred embodiment of the present invention.

Figure 6 is a combined perspective view of a second preferred embodiment of the present invention.

Figure 7 is a cross-sectional view of the second preferred embodiment of the present invention taken along the line bis of Figure 6b-b, wherein the gas barrier is located in the open position.

Figure 8 is a plan view showing the gas barrier portion of the second preferred embodiment of the present invention, wherein the gas barrier portion is located at the open position.

Figure 9 is a cross-sectional view of a second preferred embodiment of the present invention taken along the line bis of Figure 6b-b, wherein the gas barrier is located at the blocking position.

Figure 11 is a plan view showing the gas barrier portion of the second preferred embodiment of the present invention, wherein the gas barrier portion is located at the blocking position.

First, referring to the first to fourth figures, the fluid delivery device (10) having the shunting structure provided in the first preferred embodiment of the present invention is disclosed in the above-mentioned patent application No. 098,222,559. The same, but the difference is that the shunting structure disclosed in this embodiment belongs to the prior art. In particular, the fluid delivery device (10) with the shunting structure mainly includes There is a container (20), a pressure difference generating portion (30), a gas blocking portion (40) and an air inlet portion (50).

The container (20) has a hollow top-opening cylinder (21), and a cylinder cover (22) for closing the top end of the barrel (21) to be closed by the cylinder cover (22) The top end of the barrel (21) is open to close the inner chamber (23) of the barrel (21), and a tubular inlet (24) communicates with the inside and outside of the chamber (23).

The pressure difference generating portion (30) is disposed on the cylinder cover (22) and has a hollow pressure difference generating member (31) formed by a venturi tube, and is disposed in the cylinder cover (22). End (32) with one out The air end (33) is disposed on the cylinder cover (22) and communicates with the pressure difference generating member (31) and the outside of the cylinder cover (22), and a passage (34) is disposed on the cylinder cover (22). The upper portion is used to connect the pressure difference generating member (31) with the chamber (23).

The gas barrier portion (40) is disposed on the pressure difference generating portion (30) and adjacent to the gas outlet end (33) for controlling the communication state between the gas outlet end (33) and the atmosphere. Actuating between an open position and a blocking position, generally, when located in the open position, as shown in the third figure, the gas barrier (40) does not interfere with the gas outlet (33) In communication with the atmosphere, gas is allowed to flow between the entire space of the gas outlet (33) and the atmosphere.

The air inlet portion (50) is tubular and communicates with the air inlet end (32) for connecting with a delivery line of an external high-pressure gas source for forming a flow passage through which the gas of the external high-pressure gas source passes. The inlet end (32) enters the pressure difference generating member (31).

The above-mentioned descriptions are known to the prior art, and need not be described in detail in the present embodiment, and only the above description will be briefly described.

The following description is the characteristic part of the technology of the present invention. Specifically, the air outlet end (33) has a circular hole-shaped air outlet hole (331), and one end of the hole shaft is connected to the pressure difference generating member ( 31) communicating, the other end opening is located at the end side of the cylinder cover (22), and is open to communicate with the atmosphere, and a cylindrical end cover (332) is disposed on the cylinder cover (22) with an open end. And located on the outer side of the other end of the air outlet (331).

The gas blocking portion (40) has a screw-shaped shaft plug (41) which is screwed on the end cover (332) and coaxially corresponds to one end of the outlet hole (321). The self-axial axis reciprocates axially between the open position and the blocked position, and an exhaust notch (42) is attached to the shaft plug (41) at one end, according to which the shaft plug (41) is located at the blocking position, and one end of the axial direction abuts against the other end of the air outlet (331), which blocks the air outlet (331) At the same time, the exhaust gap (42) is connected to the other end of the air outlet (331) and the atmosphere, and as shown in the fourth figure, the gas located in the air outlet (331) is received by the shaft plug. (41) Blocking, but still has to escape to the atmosphere via the exhaust gap (42).

By the composition of the above-mentioned members, the fluid delivery device (10) having the split structure performs the operation of collecting the external fluid into the interior of the chamber (23) as shown in the third figure. The gas blocking portion (40) is located at the open position, and the external high-pressure gas is generated from the gas inlet end (32) via the pressure difference generating member (31), and the pressure difference is generated when the gas outlet end (33) is sprayed to the atmosphere. The low static pressure zone formed by the member (31) reduces the pressure in the chamber (23), so that a suction force is obtained to trap the external fluid into the chamber (23).

When the fluid delivery device (10) having the splitting structure performs the operation of pushing the fluid inside the chamber (23) outward, the gas barrier portion (40) is located at the blocking position. Accordingly, when the external high-pressure gas enters the pressure difference generating member (31) from the inlet end (32), since the outlet end (33) has been blocked most, the flow direction of the gas is changed, and the gas cannot be changed. When the venturi effect is generated, the gas stream (a) entering the pressure difference generating member (31) is split into a pressurized split (a1) and a discharge split (a2), wherein the pressurized split (a1) is Entering the chamber (23) via the passage (34) to increase the air pressure in the chamber (23), and the discharge split (a2) escapes to the atmosphere via the exhaust gap (42) By the structure in which the exhaust gas (42) is connected to the atmosphere and the air outlet (331), the flow rate of the pressure split (a1) and the discharge split (a2) can be automatically adjusted through atmospheric pressure to avoid excessive The gas is accumulated in the chamber (23), and the cylinder wall of the barrel (21) is expanded to ensure the fluid flow of the barrel (21). More gentle, in order to facilitate the use.

Continuing to refer to the fifth to tenth embodiments, a fluid delivery device (10') having a split structure is provided in the second preferred embodiment of the present invention, which is substantially the same as the first one. The same structure as the preferred embodiment, it is easy to say that the fluid delivery device (10') having the split structure also includes a container (20'), a pressure difference generating portion (30'), and a gas barrier portion. (40') and an air intake (50').

What is different from the first preferred embodiment is that the air outlets (331') of the air outlet end (33') are fan-shaped.

The gas blocking portion (40') has a pivot (41') that is pivotally connected to the end cap (332'), and a fan-shaped flap (42') is fixed to the pivot One end of the shaft (41') is attached to the peripheral end surface of the other end opening of the air outlet (331') with one side surface, and the pivot (41') is the axis along the air outlet ( The radial direction of the 331') is reciprocally pivoted between the open position and the blocked position, and a lever (43') is vertically fixed to the pivot (41') to protrude the end cover (332'). The other end of the outer side is for biasing the rotating body (42'), and a fan-shaped notch (44') is attached to the rotating body (42').

Accordingly, when the rotating body (42') is located at the open position, as shown in the seventh and eighth figures, the notch (44') and the other end of the air outlet (331') are provided. The orifices overlap to open all of the other orifices of the outlet (331') so that the gas is allowed to flow through the entire space provided by the outlet (331') as a flow passage to the atmosphere.

When the rotating body (42') is located at the blocking position, as shown in the ninth and tenth figures, the notch (44') is connected to the other end of the air outlet (331'). The ports are interlaced with each other, and an exhaust space (45') is formed at a position where they intersect each other, whereby the discharge split (a2) is passed through the exhaust The space (45') escapes into the atmosphere, thereby achieving the same effects as those disclosed in the first preferred embodiment described above.

The first and second preferred embodiments are both described in the structure in which the outlet end has only a single air outlet, and the end surface of the air blocking portion is partially abutted against the air outlet opening.俾 俾 俾 之 之 之 之 之 之 之 之 之 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 098 The length of the gas blocking portion is such that when the gas blocking portion is located at the blocking position, the end surface of the hole-shaped outlet originally used for the gas outlet end is separated from the hole outlet of the gas outlet end by a slight The gap, according to the escape flow of the discharge split, and the technical content of the specific small gap can be achieved by shortening the length of the gas barrier or by having an appropriate positioning structure. It should be within the scope of the invention to be protected.

In addition, the outlet end is not limited to a single vent structure. For example, the outlet end has a larger aperture and a smaller aperture vent, respectively. The pressure difference generating member and the atmosphere, according to which the structure of the gas barrier portion is used in the same manner as in the prior art of the prior art No. 098,222,559, so that the gas barrier portion is completely blocked when the gas blocking portion is located at the blocking position. The vent hole is connected to the atmosphere only by the vent hole, and accordingly, the same effect as that disclosed in the previous embodiments can be achieved.

In other words, the main technical feature of the present invention is that when the gas blocking portion is located at the blocking position, a communication passage connecting the pressure difference generating member and the atmosphere is provided to make the air flow (a) The flow split (a1) and the discharge split (a2) can be split, so that the flow rate of each split can be automatically adjusted by atmospheric pressure to ensure component damage and smoothly send the fluid for use. That is to say, those who have the technical characteristics shall be within the scope of the protection claimed in this case.

(21)‧‧‧

(22)‧‧‧Capping

(23) ‧ ‧ ‧ room

(31) ‧‧‧Pressure difference generating parts

(32) ‧‧‧ inlet end

(33) ‧ ‧ venting end

(331)‧‧‧ Vents

(34) ‧‧‧ channels

(41)‧‧‧ shaft plug

(42) ‧‧‧ Venting gap

(50)‧‧‧Intake Department

(a) ‧ ‧ airflow

(a1) ‧‧‧Pressure shunt

(a2) ‧ ‧ discharge diversion

Claims (10)

A fluid delivery device having a splitting structure, comprising: a container having an inner closed chamber, a feed port for connecting the inside and the outside of the chamber; a pressure difference generating portion disposed on the container, having a gas pressure end and an air outlet end, a hollow pressure difference generating member is between the air inlet end and the air outlet end, and a passage is connected to the pressure difference generating member and the chamber; a gas barrier portion, The pressure difference generating portion is arranged to be movable between a blocking and an open position; an air inlet portion is disposed on the container and connected to the air inlet end for conveying with an external high pressure gas The pipeline is connected to form a flow passage of the external high-pressure gas into the inlet end; wherein when the gas barrier is located at the blocking position, the outlet end is not completely blocked, so that the outlet end is Connected to the atmosphere; according to this, when the gas blocking portion is located at the blocking position, the external high pressure gas entering from the inlet end is split into a pressurized split and a discharge split, so that the pressurized split is passed through the The pressure difference generating portion enters the chamber and causes the row The outlet end of the shunt to the atmosphere via the Yi. A fluid delivery device having a split structure according to claim 1, wherein the air outlet has an air outlet end connected to the pressure difference generating member at one end. According to the fluid delivery device with a split structure according to the second application of the patent application scope, The gas blocking portion is attached to the peripheral end surface of the other end opening of the air outlet by one side, and is movable between the open position and the blocking position along the radial direction of the air outlet. According to the fluid delivery device of the shunting structure of claim 2, wherein the gas blocking portion has a pivot shaft, and the one-piece rotating body is located at one axial end of the pivot shaft, and is pasted on one side. Connected to the peripheral side of the other end of the air outlet, the pivot is pivoted between the open position and the blocked position. The fluid delivery device of the shunting structure according to the fourth aspect of the invention, wherein the gas barrier further comprises a notch disposed on the rotating body, when the rotating body is located at the blocking position, The exhaust gas notch and the other end of the gas outlet are staggered to each other to form an exhaust space for the discharge split to escape to the atmosphere. The fluid delivery device with a split structure according to the fifth aspect of the invention, wherein the other end opening of the air outlet and the notch are respectively fan-shaped. The fluid delivery device with a split structure according to the second aspect of the invention, wherein the gas barrier portion has one end facing the other end of the air outlet, and the axial direction of the air outlet is Open and move between the blocking positions. The fluid delivery device with a split structure according to the seventh aspect of the invention, wherein the gas barrier portion has a shaft plug that is coaxially oriented at one end toward the other end of the air outlet hole Shafting between the open position and the blocking position, when in the blocking position, one end abuts against the other end of the air outlet, and blocks one end of the other end of the air outlet. The fluid delivery device according to claim 8 , wherein the gas barrier further has a gas venting opening, and is disposed on one end of the shaft plug, wherein the shaft plug is located at the blocking position. In the upper direction, one end of the shaft plug abuts the other end opening of the air outlet, and the exhaust gap communicates with the air outlet and the atmosphere. The fluid delivery device according to claim 3, wherein the outlet end further comprises a venting hole having a smaller aperture than the venting opening and communicating with the pressure difference generating member at one end. When the gas blocking portion is located at the blocking position, the other end opening of the air outlet hole is closed, and the air discharging hole is communicated with the atmosphere.