TW201835445A - Double-acting pneumatic pump - Google Patents

Abstract

The invention relates to a double-acting pneumatic pump. Primarily, a main body of the pump is divided into two chambers by three partitions. The first partition disposed between the two chambers is inserted with a piston rod, and a first piston and a second piston provided at two ends of the piston rod are arranged in the two chambers respectively. The first partition is connected with a switching valve and an air flow valve by pipelines at inlets in sequence. The two chambers are respectively provided with the second and third partitions which are disposed at the opposite ends of the chambers connected to the first partition. Furthermore, inlets and outlets of the second and third partitions are connected to working piping respectively. By the valve position switch of the switching vale, the pistons within the two chambers can be driven to pressurize and output the fluid within the chambers. Furthermore, the piston feed rate can be controlled by the air flow valve. Accordingly, it can achieve the effects of outputting the fluid at two different areas at one time and adjusting the delivering frequency and the flow rate of the fluid flexibly.

Description

Pneumatic double acting pump

The invention relates to a pneumatic double-acting pump, in particular to a pneumatic double-action pump which can output fluids of at least two different regions at a time, and can easily and accurately adjust the fluid delivery frequency and flow rate.

According to the conventional pump system, the main body is composed of a body, a motor and a blade. The motor is mounted on one side of the body, and the drive shaft connected to the motor is inserted into the body to be combined with the blades located in the body. When the motor is actuated, the fluid is introduced into the body from the inlet of the body side, and is pressurized by the blade to output the fluid from the outlet of the body, thereby increasing the fluid delivery pressure and lowering the fluid from low to high. Push at the place.

However, the hydraulic thrust of the existing pump is caused by the centrifugal force generated by the motor to drive the blade. In order to obtain the centrifugal force required to pressurize the fluid, the motor speed must maintain a high rotational speed; however, the high-speed running motor not only consumes energy and causes component wear, but It will also cause the internal temperature of the pump to damage the fluid quality. If the motor speed is to be reduced to reduce the damage rate of the pump and the damage to the fluid, it is found that the low-speed running motor cannot drive the blade to generate the centrifugal force of the pushing fluid and lose the pump function. Therefore, the existing pump is only suitable for rapid conveying and low fluid quality for conveying quality, and it is not suitable for thick fluids that need to be transported slowly, and the existing pump can only be used for single fluid transportation at one time, instead of Effects such as fluid transport in two or more areas.

The reason for this is that the present inventors have invented the present invention in view of the above-mentioned deficiencies in the use of the existing gangs, and by virtue of their many years of manufacturing and design experience and knowledge in related fields, and through various ingenuity.

The invention relates to a pneumatic double-acting pump, the main purpose of which is to provide a pneumatic double action which can output fluids of at least two different regions at a time, and can easily and accurately adjust the fluid delivery frequency and flow rate. Pump.

In order to achieve the above-mentioned implementation, the inventors have developed a pneumatic double-acting pump, which is mainly provided with a hollow pump body, and the pump body is separated by at least three partitions to form at least two chambers, and The three partitions of the two compartments respectively form two end walls of the two chambers, and the partition between the two chambers is provided with a perforation at the center thereof, and a piston rod is disposed in the perforations And connecting a piston to each end of the piston rod, so that the two pistons are respectively located in the two chambers, and the two chambers are respectively formed with at least one inlet and at least one outlet at the two end walls thereof. And passing the inlet and outlet through the partition formed therein.

The pneumatic double acting pump as described above, wherein the three partitions are defined as a first partition, a second partition and a third partition, and the two chambers are defined as a first chamber and a second chamber. a partition, and the partition between the first chamber and the second chamber is a first partition, and the first chamber and the second chamber are opposite to the first partition The second partition and the third partition are respectively connected to the first partition, and at least a first inlet and a second inlet are formed on the first partition, and the first inlet and the second inlet are inserted through the first partition The first chamber and the second chamber end wall of the plate are respectively connected to the first chamber and the second chamber, and at least one inlet is formed on each of the second partition and the third partition And the inlets of the second partition and the third partition respectively penetrate the first chamber and the second chamber end wall formed by the second partition and the third partition, and the first capacity The second partition is connected to the second chamber, and the second partition is formed with an outlet on the other side of the inlet, and the outlet of the second partition extends through the first chamber end formed by the second partition. And communicating with the first chamber, the third partition is formed with an outlet on the other side of the inlet, and the outlet of the third partition is inserted through the second chamber end formed by the third partition a wall that communicates with the second chamber.

The pneumatic double-acting pump as described above, wherein the pneumatic double-action pumping system further comprises a plurality of working pipes, wherein the second and third baffles are connected to each of the inlet and the outlet thereof The road is provided with a check valve in the working pipe.

The pneumatic double-acting pump as described above, wherein the pneumatic double-acting pump system further comprises a switching valve, and the first inlet and the second inlet of the first partition are respectively a pipeline and the switching valve Connected.

The pneumatic double acting pump as described above, wherein the three partitions are defined as a first partition, a second partition and a third partition, and the two chambers are defined as a first chamber and a second chamber. a partition, and the partition between the first chamber and the second chamber is a first partition, and the first chamber and the second chamber are opposite to the first partition The second partition and the third partition are respectively connected to the first partition, and at least a first inlet and a second inlet are formed on the first partition, and the first inlet and the second inlet are inserted through the first partition The first chamber and the second chamber end wall are respectively formed to communicate with the first chamber and the second chamber, and at least one inlet is formed on the second partition and the third partition. And passing the inlets of the second partition plate and the third partition plate through the first chamber and the second chamber end wall formed by the second partition plate and the third partition plate to respectively respectively and the first chamber And communicating with the second chamber, the first partition is formed with an outlet on the other side of the first inlet and the second inlet, and the outlet is formed through the first partition to form the first chamber a wall, and communicating with the first chamber, the second partition is formed with an outlet on the other side of the inlet, and the outlet of the second partition is inserted through the first chamber formed by the second partition The end wall is in communication with the first chamber.

The pneumatic double acting pump as described above, wherein the pneumatic double acting pumping system further comprises a plurality of working pipes, the first inlet and the outlet of the first partition, and the inlet of the second partition A working pipe is connected to each of the outlets, and a check valve is arranged in the working pipe.

The pneumatic double-acting pump as described above, wherein the pneumatic double-action pumping system further comprises a switching valve, and the inlets of the second inlet and the third partition of the first partition are respectively connected by a pipeline The switching valves are connected.

The pneumatic double acting pump as described above, wherein the three partitions are defined as a first partition, a second partition and a third partition, and the two chambers are defined as a first chamber and a second chamber. a partition, and the partition between the first chamber and the second chamber is a first partition, and the first chamber and the second chamber are opposite to the first partition The second partition and the third partition are respectively connected to the first partition, and at least a first inlet and a second inlet are formed on the first partition, and the first inlet and the second inlet are inserted through the first partition The first chamber and the second chamber end wall are respectively formed to communicate with the first chamber and the second chamber, and at least one inlet is formed on the second partition and the third partition. And passing the inlets of the second partition and the third partition through the first chamber and the second chamber end wall formed by the second partition and the third partition, respectively, and the first chamber and The second chamber is connected to the first partition, and the first partition and the second inlet are formed on the other side thereof with a first outlet and a second outlet, and the first outlet and the second outlet are penetrated A first separator constituted of the first chamber and a second chamber end wall, respectively communicating with the first chamber and the second chamber.

a pneumatic double acting pump as described above, wherein the pneumatic double acting pumping system further comprises a plurality of working lines for the first inlet and the second inlet of the first partition, and the first partition The first outlet and the second outlet are each connected to the working pipeline, and a check valve is arranged in the working pipeline.

The pneumatic double-acting pump as described above, wherein the pneumatic double-action pumping system further comprises a switching valve, and the inlets of the second partition plate and the third partition plate are each connected to the switching valve by a pipeline connection.

The pneumatic double-acting pump as described above, wherein the pneumatic double-action pumping system further comprises an air flow valve, such that the switching valve is connected to the air flow valve by a line.

The pneumatic double-acting pump as described above, wherein the switching valve is a four-port two-position valve.

Thereby, the pneumatic double-acting pumping system of the invention can drive the pistons of the various chambers to pressurize the fluid in the chamber by using the valve position change of the switching valve, so as to achieve the fluid output of at least two different regions at a time. The effect, by adjusting the switching frequency of each valve position of the switching valve, can easily and accurately achieve the function of controlling the fluid output frequency in each chamber, and the air flow valve can control the high-pressure air output flow, thereby controlling the piston feed speed. Achieve simple and precise adjustment of fluid delivery flow rate effects.

In order to make the technical means of the present invention and the effects thereof can be more completely and clearly disclosed, the following is a detailed description. Please refer to the disclosed drawings and drawings:

First, as shown in the first figure, the pneumatic double-acting pump of the present invention is mainly provided with a hollow pump body (1), and the hollow pump body (1) is composed of at least three partitions (2). Dividing into at least two chambers, and three partitions (2) separating the two chambers respectively constitute two end walls of the two chambers, and the present invention defines the three partitions (2) as the first partitions (21), a second partition (22) and a third partition (23), wherein the two chambers are defined as a first chamber (11) and a second chamber (12), and are located in the first chamber The partition (2) between the (11) and the second chamber (12) is a first partition (21), and the first chamber (11) and the second chamber (12) are opposite to the first The second partition (22) and the third partition (23) are respectively connected to the other ends of the partitions (21), and the first partitions (21) are provided with a perforation at the center thereof (211). And a piston rod (3) is pierced in the through hole (211), and the first end of the piston rod (3) is connected to the first live (31) and a second piston (32), and the first piston (31) and the second piston (32) are respectively located in the first chamber (11) and the second chamber (12), The distance between the first chamber (11) and the second chamber (12) formed by the first partition (21), the second partition (22) and the third partition (23) is The actuation strokes of the first piston (31) and the second piston (32) further connect at least one leakage preventing washer (33) to each of the peripheral walls of the first piston (31) and the second piston (32) to enable the The first piston (31) and the second piston (32) are in contact with the chamber walls of the first chamber (11) and the second chamber (12) by the leakage preventing washer (33), and A partition (21) has a perforated (211) hole wall and is also provided with at least one leakage preventing washer (212) to make the piston rod (3) and the leakage preventing washer (212) of the perforating (211) hole wall Contacting, and forming a first inlet on one side of the first partition (21) (2 3) and a second inlet (214), and the first inlet (213) extends through the end wall of the first chamber (11) formed by the first partition (21), and the first chamber (11) Cooperating, the second inlet (214) is penetrated through the end wall of the second chamber (12) formed by the first partition (21), and communicates with the second chamber (12), and the first The inlet (213) and the second inlet (214) are respectively connected to a switching valve (4) by a pipeline, the switching valve (4) is a four-port two-position valve, and the switching valve (4) is also pipelined. Connected to an air flow valve (5), and the second partition (22) and the third partition (23) are respectively formed with an inlet (221), (231) and an outlet (222) at two sides thereof. And (232), and the inlet (221) and the outlet (222) of the second partition (22) extend through the end wall of the first chamber (11) formed by the second partition (22), and The first chamber (11) communicates with the third partition (2) 3) the inlet (231) and the outlet (232) extend through the end wall of the second chamber (12) formed by the third partition (23), and communicate with the second chamber (12), and make the first The two partitions (22) and the third partition (23) have a working pipe (6) connected to each of the inlets (221), (231) and the outlets (222) and (232), and the working pipe (6) ) each having a check valve (61), the second baffle (22) and the third baffle (23) having a check valve in the working line (6) connected to the inlet (221) and (231) (61) preventing fluid from flowing back into the first chamber (11) and the second chamber (12), and the second partition (22) and the third partition (23) having an outlet (222) And (232) the check valve (61) in the connected working pipe (6) prevents the fluid from being discharged from the first chamber (11) and the second chamber (12) and then flows back to the first volume Room (11) and second chamber (12).

Accordingly, when used, the air flow valve (5) is connected to an air compressor by a pipeline, and the switching valve (4) and the air flow valve (5) are coupled to a control unit. The valve position switching of the switching valve (4) is controlled by the control unit, and the air flow valve (5) outputs air flow rate adjustment and the like. When the first fluid is introduced into the first chamber (11) from the working line (6) through the inlet (221) of the second partition (22), the second fluid is also passed through the working line (6) through the third The inlet (231) of the partition (23) is injected into the second chamber (12), and the check valve (61) is provided in the working line (6) to prevent injection into the first chamber (11) and The fluid in the second chamber (12) flows countercurrently.

Here, as shown in the second figure, when the first fluid in the first chamber (11) is to be pressurized, the control unit drives the switching valve (4) to actuate the switching valve ( 4) Adjust to the first valve position. At this time, the high-pressure air output by the air compressor through the air flow valve (5) will be guided by the first position of the switching valve (4). The first inlet (213) of the partition (21) enters the first chamber (11), and pushes the first piston (31) located in the first chamber (11) toward the second partition (22) And the first fluid injected into the first chamber (11) is pressed by the first piston (31), and the outlet (222) provided by the second partition (22) is connected to the working pipeline ( 6) Pressurizing the output, and using the check line (61) in the working line (6) to prevent the fluid output from the outlet (222) of the second partition (22) from flowing back to the first chamber ( 11) inside. When the second fluid in the second chamber (12) is to be pressurized, the control unit drives the switching valve (4) to be adjusted to the second valve position, so that high-pressure air is applied to the switching valve (4). The second valve position is guided by the hole position, enters the second chamber (11) through the second inlet (214) of the first partition (21), and the second chamber (12) The second piston (32) is pushed in the direction of the third partition (23) so that the second fluid injected into the second chamber (12) is pressed by the second piston (32) by the third partition (23). The outlet (232) is pressurized output through the connected working pipe (6), and the check valve (61) provided in the working pipe (6) is used to prevent the outlet of the third partition (23) from being 232) The output fluid flows back into the second chamber (12).

According to the pneumatic double-acting pump design of the present invention, at least two different fluids, such as the first fluid and the second fluid, can be transported at one time to provide fluid output operations of at least two different regions, and another In the invention, the working pipe (6) and the second partition (22) and the third partition (23) are arranged differently, and the inlets (222), (232), (221), and (231) are differently arranged. Different working efficiencies can be generated, such as connecting the outlet (222) of the second partition (22) with the inlet (231) of the third partition (23) with the working line (6), and the third partition ( 23) The outlet (232) and the inlet (221) of the second partition (22) are connected by the working line (6), so that the fluid can be made to the first chamber (11) and the second chamber. (12) Reciprocating reflow effect. Furthermore, the present invention can adjust the pair of the first piston (31) and the second piston (32) by controlling the switching valve (4) to switch the frequency at the first valve position and the second valve position. First chamber (1 And the fluid in the second chamber (12) is pressurized to deliver the frequency, and the air flow valve (5) is used to control the high-pressure air output flow, thereby adjusting the feed of the first piston (31) and the second piston (32) The speed is fast, so as to achieve simple and precise adjustment of the fluid delivery frequency and flow rate, etc., to meet the needs of different concentrations of fluid transport.

Please also refer to the third figure, which is an embodiment of the pneumatic double-acting pump of the present invention, which is the first inlet (213) and the second inlet (214) of the first partition (21). An outlet (215) is formed on the opposite side, and the outlet (215) is penetrated through the end wall of the first chamber (11) formed by the first partition (21), and communicates with the first chamber (11) And omitting the outlet (232) of the third partition (23), and the second inlet (214) of the first partition (21) and the inlet (231) of the third partition (23) are each a pipeline Connected to the switching valve (4), the first inlet (213) of the first partition (21) and its outlet (215), and the inlet (221) and outlet (222) of the second partition (22) A working pipe (6) is respectively connected, whereby the working pipe (6) connected by the inlet (221) of the second partition (22) and the first inlet (213) of the first partition (21) The first fluid and the first The fluid is input into the first chamber (11), and the inlet (221) of the second partition (22) and the working inlet (6) of the first partition (213) of the first partition (21) are connected. The check valve (61) is disposed to prevent the first fluid input into the first chamber (11) from the inlet (221) of the second partition (22) from flowing back from the first chamber (11), and preventing The second fluid input into the first chamber (11) from the first inlet (213) of the first partition (21) is flowed back from the first chamber (11), and then injected into the first chamber (11) The first fluid and the second fluid are separated by the first piston (31). When the switching valve (4) is adjusted to the first valve position, the high pressure air system is guided by the hole position of the first valve position. Entering the second chamber (12) from the second inlet (214) of the first partition (21) to push the second piston (32) toward the third partition (23), at this time, a second piston (32) connected by a piston rod (3) to the first piston ( 1) feeding in the direction of the first partition (21) to squeeze the second fluid injected between the first piston (31) and the first partition (21), so that the second fluid is made of the first partition ( 21) The outlet (215) is pressurized through the working line (6), and the check valve (61) is provided in the working line (6) connected by the outlet (215) of the first partition (21). , the second fluid outputted from the outlet (215) of the first partition (21) can be prevented from flowing back into the first chamber (11), and when the switching valve (4) is adjusted to the second valve position, Then, the high-pressure air is guided by the hole position of the second valve position of the switching valve (4), and enters the second chamber (12) from the inlet (231) of the third partition (23) to press the second piston. (32) abutting in the direction of the first partition (21), and at the same time, the first piston (31) connected to the piston rod (3) of the second piston (32) is directed to the second partition (22) Directional feed to squeeze between the first piston (31) and the second partition (22) The first fluid is pressurized by the outlet (222) of the second partition (22) via the working line (6), and the working line (6) is connected by the outlet (222) of the second partition (22). The check valve (61) is arranged to prevent the first fluid outputted from the outlet (222) of the second partition (22) from flowing back into the first chamber (11), thereby achieving the same The fluids in two different areas are transported, and the effects of fluid delivery frequency and flow rate are adjusted.

In addition, as shown in the fourth figure, another embodiment of the pneumatic double-acting pump of the present invention is the first inlet (213) and the second inlet (214) of the first partition (21). Forming a first outlet (216) and a second outlet (217) opposite to the other side, and passing the first outlet (216) and the second outlet (217) through the first partition (21) The chamber (11) and the second chamber (12) end wall communicate with the first chamber (11) and the second chamber (12), respectively, and the second partition (22) and the third partition are omitted. (23) The outlets (222) and (232) are arranged, and the inlets (221) and (231) of the second partition (22) and the third partition (23) are each a pipeline and a switching valve (4). The first partition (213), the second inlet (214), the first outlet (216) and the second outlet (217) of the first partition (21) are respectively connected with a working pipeline (6). ), here, the first partition a working line (6) connected to the first inlet (213) and the second inlet (214) of (21) respectively injecting the first fluid and the second fluid into the first chamber (11) and the second chamber (12) In the working pipe (6) connected to the first inlet (213) of the first partition (21) and the second inlet (214), the check valve (61) is disposed, thereby preventing the first partition The first inlet (213) of the plate (21) is fed back into the first chamber (11) by the first chamber (11), and the second inlet is prevented by the first partition (21). (214) The second fluid input to the second chamber (12) is flowed backward by the second chamber (12). When the switching valve (4) is adjusted to the first valve position, the hole is guided at the first valve position. In turn, the high-pressure air system enters the first chamber (11) from the inlet (221) of the second partition (22) to push the first piston (31) toward the first partition (21). And squeezing the first fluid injected into the first chamber (11) by a first outlet (216) of a partition (21) is pressurized and outputted through a working pipe (6), and a working pipe (6) connected by a first outlet (216) of the first partition (21) The check valve (61) is arranged to prevent the first fluid outputted from the first outlet (216) of the first partition (21) from flowing back into the first chamber (11), and the switching valve is additionally (4) When adjusting to the second valve position, the high pressure air is guided by the hole position of the second valve position of the switching valve (4), and enters the second capacity by the inlet (231) of the third partition plate (23). In the chamber (12), the second piston (32) is pushed against the first partition (21), and the second fluid injected into the second chamber (12) is pressed by the first partition (21). The second outlet (217) is pressurized and outputted through the working line (6), and the check valve (6) is connected in the working line (6) connected by the second outlet (217) of the first partition (21). 61), it is possible to prevent the output of the second outlet (217) of the first partition (21) The two fluids flow back into the second chamber (12), thereby achieving the functions of simply transporting fluids in two different regions and adjusting fluid delivery frequency and flow rate.

The foregoing embodiments or drawings are not intended to limit the embodiments of the present invention. Any changes or modifications made by those skilled in the art should be considered as not departing from the scope of the invention.

As can be seen from the above structures and embodiments, the present invention has the following advantages:

1. The pneumatic double-acting pumping system of the present invention is provided with at least two chambers, and pistons are arranged in each chamber, and the pistons of the chambers are coaxially connected, thereby utilizing the valve position change of the switching valve The piston of each chamber can be driven to pressurize the fluid in the chamber, thereby achieving the effect of discharging the fluid in at least two different regions at a time.

2. The pneumatic double-acting pumping system of the invention can achieve the function of simple and precise control of the fluid output frequency in the chamber by adjusting the switching frequency of each valve position of the switching valve, and the high-pressure air output flow can be controlled by the air flow valve. In turn, the piston feed speed is controlled to easily and accurately achieve the effect of adjusting the fluid delivery flow rate, and accordingly, it is suitable for various fluids such as different consistency.

3. The pneumatic double-acting pumping system of the present invention can effectively avoid the generation of high temperature in the chamber for providing fluid injection and output, thereby preventing the damage of fluid quality caused by improper high temperature, and the invention can be applied to the conveying. The quality of the fluid is required to transport the operator.

In summary, the embodiments of the present invention can achieve the expected functions, and the specific structures disclosed therein have not been seen in the same products, nor have they been disclosed before the application, and have fully complied with the provisions of the Patent Law. It is required that if an application for a patent for invention is filed in accordance with the law, and if the application is granted, the patent will be granted.

(1) ‧‧‧ 浦浦主

(11) ‧ ‧ first room

(12) ‧ ‧ second room

(2) ‧ ‧ partition

(21)‧‧‧First partition

(211)‧‧‧Perforation

(212) ‧‧‧ leakproof washers

(213) ‧ ‧ first entrance

(214) ‧ ‧ second entrance

(215)‧‧‧Export

(216) ‧ ‧ first exit

(217) ‧ ‧ second exit

(22)‧‧‧Second partition

(221)‧‧‧ Entrance

(222)‧‧‧Export

(23)‧‧‧ Third partition

(231)‧‧‧ Entrance

(232)‧‧‧Export

(3)‧‧‧Piston rod

(31)‧‧‧First Piston

(32)‧‧‧Second Piston

(33) ‧‧‧ leakproof washers

(4)‧‧‧Switching valve

(5)‧‧‧Air flow valve

(6) ‧‧‧Working lines

(61) ‧‧‧ check valve

First Figure: Cutaway view of the present invention

Second figure: use state diagram of the present invention

Third drawing: a cross-sectional view of a second embodiment of the present invention

Fourth Figure: Cutaway view of another embodiment of the present invention

Claims (12)

A pneumatic double-acting pump is mainly provided with a hollow pump body, and the pump body is separated by at least three partitions to form at least two chambers, and the three partitions of the two compartments respectively constitute the The two end walls of the two chambers further define a partition at the center of the partition between the two chambers, and a piston rod is disposed in the through hole, and a piston is connected to each end of the piston rod So that the two pistons are respectively located in the two chambers, and the two chambers are formed with at least one inlet and at least one outlet at the two end walls thereof, and the inlet and the outlet are formed through the partition plate formed by the inlet and the outlet. . The pneumatic double-acting pump according to claim 1, wherein the three partitions are defined as a first partition, a second partition, and a third partition, and the second chamber is defined as the first a chamber and a second chamber, wherein the partition between the first chamber and the second chamber is a first partition, and the first chamber and the second chamber are opposite to the first partition The second partition and the third partition are respectively connected to the other ends of the first partition, so that at least a first inlet and a second inlet are formed on the first partition, and the first inlet and the second inlet are formed. The first chamber and the second chamber end wall formed by the first partition are respectively communicated with the first chamber and the second chamber, and the second partition and the third partition are respectively Each of the at least one inlet is formed, and the inlets on the second and third partitions respectively extend through the first and second chamber end walls of the second and third partitions, and Interconnecting with the first chamber and the second chamber, the second partition is formed with an outlet on the other side of the inlet, and the outlet of the second partition is formed through the second partition. The first chamber end wall is in communication with the first chamber, and the third partition is formed with an outlet on the other side of the inlet, and the outlet of the third partition is formed through the third partition. The second chamber end wall is in communication with the second chamber. The pneumatic double-acting pump according to claim 2, wherein the pneumatic double-action pumping system further comprises a plurality of working pipes, wherein the second and third partitions have their inlets and outlets respectively A working pipe is connected, and a check valve is arranged in the working pipe. The pneumatic double-acting pump according to claim 2, wherein the pneumatic double-action pump system further comprises a switching valve, and the first inlet and the second inlet of the first partition are respectively A line is connected to the switching valve. The pneumatic double-acting pump according to claim 1, wherein the three partitions are defined as a first partition, a second partition, and a third partition, and the second chamber is defined as the first a chamber and a second chamber, wherein the partition between the first chamber and the second chamber is a first partition, and the first chamber and the second chamber are opposite to the first partition The second partition and the third partition are respectively connected to the other ends of the first partition, so that at least a first inlet and a second inlet are formed on the first partition, and the first inlet and the second inlet are formed. The first chamber and the second chamber end wall formed by the first partition are respectively communicated with the first chamber and the second chamber, and the second partition and the third partition are respectively Forming at least one inlet, and the inlets on the second and third partitions extend through the first and second chamber end walls of the second and third partitions to respectively The first chamber and the second chamber are in communication, and the first partition is formed with an outlet on the other side of the first inlet and the second inlet, and the outlet is formed through the first partition. The first chamber end wall is in communication with the first chamber, and the second partition is formed with an outlet on the other side of the inlet, and the second partition has an outlet extending through the second partition. The first chamber end wall is configured to communicate with the first chamber. The pneumatic double acting pump according to claim 5, wherein the pneumatic double acting pumping system further comprises a plurality of working pipes, wherein the first inlet and the outlet of the first partition, and the first The working pipe is connected to each of the inlet and the outlet of the two partitions, and a check valve is arranged in the working pipe. The pneumatic double-acting pump according to claim 5, wherein the pneumatic double-action pump further comprises a switching valve, and the second inlet and the third partition of the first partition are connected Connected to the switching valve by a line. The pneumatic double-acting pump according to claim 1, wherein the three partitions are defined as a first partition, a second partition, and a third partition, and the second chamber is defined as the first a chamber and a second chamber, wherein the partition between the first chamber and the second chamber is a first partition, and the first chamber and the second chamber are opposite to the first partition The second partition and the third partition are respectively connected to the other ends of the first partition, so that at least a first inlet and a second inlet are formed on the first partition, and the first inlet and the second inlet are formed. The first chamber and the second chamber end wall formed by the first partition are respectively communicated with the first chamber and the second chamber, and the second partition and the third partition are respectively Forming at least one inlet, and the inlets on the second and third partitions extend through the first and second chamber end walls of the second and third partitions, respectively The first chamber and the second chamber are connected to each other, and the first partition is formed with a first outlet and a second outlet on the other side of the first inlet and the second inlet, and the first outlet and the first outlet are The second outlet extends through the first chamber and the second chamber end wall formed by the first partition, and communicates with the first chamber and the second chamber, respectively. The pneumatic double acting pump according to claim 8, wherein the pneumatic double acting pumping system further comprises a plurality of working pipes, wherein the first inlet and the second inlet of the first partition, and The working outlet is connected to each of the first outlet and the second outlet of the first partition, and a check valve is disposed in the working pipeline. The pneumatic double-acting pump according to claim 8 , wherein the pneumatic double-action pump further comprises a switching valve, and the inlets of the second partition and the third partition are each a pipeline Connected to the switching valve. The pneumatic double-acting pump according to claim 4, 7 or 10, wherein the pneumatic double-acting pump further comprises an air flow valve, such that the switching valve is a line and the air flow valve Connected. The pneumatic double-acting pump according to claim 4, 7 or 10, wherein the switching valve is a four-port two-position valve.