A dispensing system

Abstract

The utility model discloses a dispensing system belongs to dispensing technical field. It includes: air pump is provided with the air suction mouth and push air port, and the air suction mouth is connected with third electromagnetic valve, and third electromagnetic valve is connected with handle operating end, and push air port is connected with fourth electromagnetic valve, and fourth electromagnetic valve is connected with handle operating end, and the pressure tank is connected with first electromagnetic valve in output, and first electromagnetic valve is connected with handle operating end, and the vacuum ware is connected with fifth electromagnetic valve in output, and fifth electromagnetic valve is connected with handle operating end, and seventh electromagnetic valve is connected in push air port, fourth electromagnetic valve and pressure tank respectively. When needing larger push power, fourth electromagnetic valve and first electromagnetic valve are opened simultaneously, make air pump and pressure tank provide push power simultaneously, thereby can provide larger push power. When needing larger suction power, third electromagnetic valve and fifth electromagnetic valve are opened simultaneously, make air pump and vacuum ware provide suction power simultaneously, thereby can provide larger suction power.

Description

Technical Field

[0001] This utility model relates to the field of drug dispensing technology, and in particular to a drug dispensing system. Background Technology

[0002] When preparing medications, medical staff control the pushing or pulling of a dispensing device (such as a syringe) via a solenoid valve connected to an air pump. This allows the dispensing device to draw and inject the medication into a medicine bag or bottle, mixing the solutions to obtain a specific ratio of medication. However, some medications, due to their high viscosity, require significant force to complete the pushing or pulling process, or require considerable power to start the dispensing device. The air pump may not provide enough power to complete this process. Utility Model Content

[0003] The purpose of this invention is to provide a drug dispensing system to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows: a drug dispensing system for providing power to a handle operating end, the drug dispensing system comprising: an air pump having an air inlet and an air outlet, the air inlet being connected to a third solenoid valve, the third solenoid valve being connected to the handle operating end, the air outlet being connected to a fourth solenoid valve, the fourth solenoid valve being connected to the handle operating end; a pressure tank having an output end connected to a first solenoid valve, the first solenoid valve being connected to the handle operating end; a vacuum device having an output end connected to a fifth solenoid valve, the fifth solenoid valve being connected to the handle operating end; and a seventh solenoid valve, which is connected to the air outlet, the fourth solenoid valve, and the pressure tank respectively.

[0005] This technical solution has at least the following beneficial effects: The air pump's push port provides pressure to the handle's operating end through the fourth solenoid valve, thus achieving the pushing power. When not in operation, the air pump stores compressed gas in the pressure tank through the seventh solenoid valve, ensuring the gas in the pressure tank reaches a preset pressure value. When a larger pushing power is needed, the fourth and first solenoid valves are opened simultaneously, allowing the air pump and pressure tank to provide pushing power simultaneously, thereby providing a larger pushing power to the handle's operating end. The air pump's suction port provides suction power to the handle's operating end through the third solenoid valve, thus achieving the suction power. When a larger suction power is needed, the third and fifth solenoid valves are opened simultaneously, allowing the air pump and vacuum device to provide suction power simultaneously, thereby providing a larger suction power to the handle's operating end.

[0006] As a further improvement to the above technical solution, a sixth solenoid valve is connected between the pressure tank and the vacuum device, and the pressure tank can provide power to the vacuum device.

[0007] As a further improvement to the above technical solution, the third solenoid valve is connected to the fourth solenoid valve, and the third solenoid valve is also connected to a second solenoid valve. The second solenoid valve is connected to the operating end of the handle, and an exhaust port is provided between the second solenoid valve and the third solenoid valve.

[0008] As a further improvement to the above technical solution, the air inlet is also connected to a ninth solenoid valve, and the ninth solenoid valve is connected to a vent.

[0009] As a further improvement to the above technical solution, a manifold is also included. The manifold is provided with a closed first channel. The manifold is provided with a first hole connected to the handle operating end, a second hole connected to the pressure tank, a third hole forming the exhaust port, and a fourth hole connected to the intake port. The first hole is connected to the first channel, the second hole is connected to the first channel through the first solenoid valve, the third hole is connected to the first channel through the second solenoid valve, and the fourth hole is connected to the first channel through the third solenoid valve.

[0010] As a further improvement to the above technical solution, the manifold is provided with a vent hole, an eighth hole, a ninth hole, a tenth hole, and a second channel, a first closed hole, a second closed hole, and a third closed hole, all of which are closed. The first closed hole, the second closed hole, and the third closed hole are all connected to the second channel. The first closed hole is connected to the first channel through the fourth solenoid valve. The second closed hole is connected to the eighth hole through the seventh solenoid valve. The eighth hole is connected to the ninth hole. The tenth hole is connected to the seventh solenoid valve. The vent hole forms the vent outlet. The third closed hole is connected to the vent hole through the ninth solenoid valve.

[0011] As a further improvement to the above technical solution, the manifold is provided with a closed third channel, which is connected to the second solenoid valve, the third solenoid valve and the fourth solenoid valve respectively, and the third channel is connected to the third hole.

[0012] As a further improvement to the above technical solution, the manifold is also provided with a fifth hole, a sixth hole and a seventh hole. The fifth hole and the sixth hole are connected through the sixth solenoid valve, the seventh hole is connected to the vacuum device, and the seventh hole is connected to the first channel through the fifth solenoid valve.

[0013] As a further improvement to the above technical solution, all channels and holes on the busbar are straight groove structures.

[0014] As a further improvement to the above technical solution, the top of the manifold is provided with multiple through holes with straight groove structures. The first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the sixth solenoid valve and the seventh solenoid valve are all connected to the corresponding channels or holes through the corresponding through holes, and are all installed on the top of the manifold. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a connection diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a bottom schematic diagram of the busbar in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the installation of the solenoid valve and the manifold in an embodiment of this utility model;

[0019] Figure 4 This is a top view of the busbar in an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the second side of the busbar in an embodiment of the present invention;

[0021] Figure 6 for Figure 5 A cross-sectional schematic diagram of AA in the middle;

[0022] Figure 7 for Figure 5 Cross-sectional schematic diagram of BB;

[0023] Figure 8 This is a perspective view of the busbar in an embodiment of this utility model.

[0024] 100. Air pump; 110. Inlet; 120. Outlet; 130. Handle operating end; 140. Pressure tank; 150. Vacuum device; 201. First solenoid valve; 202. Second solenoid valve; 203. Third solenoid valve; 204. Fourth solenoid valve; 205. Fifth solenoid valve; 206. Sixth solenoid valve; 207. Seventh solenoid valve; 209. Ninth solenoid valve; 300. Exhaust port; 310. Vent port; 400. Manifold Plate; 410, First Channel; 420, Second Channel; 430, Third Channel; 501, First Hole; 502, Second Hole; 503, Third Hole; 504, Fourth Hole; 505, Fifth Hole; 506, Sixth Hole; 507, Seventh Hole; 600, Vent Hole; 508, Eighth Hole; 509, Ninth Hole; 510, Tenth Hole; 701, First Closed Hole; 702, Second Closed Hole; 703, Third Closed Hole; 800, Through Hole. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figure 1The dispensing device used for dispensing medicine is driven by the handle operating end 130. The dispensing system is connected to the handle operating end 130, so that the dispensing system provides power to the handle operating end 130.

[0030] The drug dispensing system includes an air pump 100, a pressure tank 140, a vacuum generator 150, a first solenoid valve 201, a second solenoid valve 202, a third solenoid valve 203, a fourth solenoid valve 204, a fifth solenoid valve 205, a sixth solenoid valve 206, a seventh solenoid valve 207, and a ninth solenoid valve 209. The vacuum generator 150 is a vacuum generator.

[0031] Among them, the first solenoid valve 201, the second solenoid valve 202, the fifth solenoid valve 205, the sixth solenoid valve 206, and the ninth solenoid valve 209 are all two-way valves. The third solenoid valve 203, the fourth solenoid valve 204, and the seventh solenoid valve 207 are all three-way valves.

[0032] The output end of the air pump 100 includes an air inlet 110 and an air outlet 120. The air inlet 110 generates negative pressure and has suction power, while the air outlet 120 generates positive pressure and has pushing power.

[0033] The air pump 100's push port 120 is connected to the first valve port of the seventh solenoid valve 207. The second valve port of the seventh solenoid valve 207 is connected to the first valve port of the fourth solenoid valve 204. The second valve port of the seventh solenoid valve 207 is also connected to the first valve port of the ninth solenoid valve 209. The second valve port of the ninth solenoid valve 209 is connected to a vent port 310 that connects to the outside. The third valve port of the seventh solenoid valve 207 is connected to the input end of the pressure tank 140.

[0034] The second port of the fourth solenoid valve 204 is connected to the third port of the third solenoid valve 203. The second port of the fourth solenoid valve 204 is also connected to the first port of the second solenoid valve 202. The second port of the second solenoid valve 202 is connected to the handle operating end 130. An exhaust port 300, connecting to the outside, is provided between the second port of the fourth solenoid valve 204 and the third port of the third solenoid valve 203. The third port of the fourth solenoid valve 204 is connected to the handle operating end 130.

[0035] The air pump 100's intake port 110 is connected to the first valve port of the third solenoid valve 203, and the second valve port of the third solenoid valve 203 is connected to the handle operation end 130.

[0036] The output end of the pressure tank 140 is connected to the first valve port of the first solenoid valve 201, and the second valve port of the first solenoid valve 201 is connected to the handle operation end 130.

[0037] The first port of the sixth solenoid valve 206 is connected to the input and / or output of the pressure tank 140, and the second port of the sixth solenoid valve 206 is connected to the input of the vacuum device 150. The output of the vacuum device 150 is connected to the first port of the fifth solenoid valve 205, and the second port of the fifth solenoid valve 205 is connected to the handle operating end 130.

[0038] In one embodiment, the sixth solenoid valve 206 can be connected only to the input end of the pressure tank 140. When the air pump 100's push port 120 inputs high-pressure gas into the pressure tank 140, a compressed airflow is formed at the input end of the vacuum device 150, and the vacuum device 150 uses the flow of compressed air to create a certain degree of vacuum. In another embodiment, the sixth solenoid valve 206 can be connected only to the output end of the pressure tank 140. When the pressure tank 140 outputs high-pressure gas, a compressed airflow is formed at the input end of the vacuum device 150, and the vacuum device 150 uses the flow of compressed air to create a certain degree of vacuum. In other embodiments, the sixth solenoid valve 206 can also be connected to both the input and output ends of the pressure tank 140. When the air pump 100's push port 120 inputs high-pressure gas into the pressure tank 140, and when the pressure tank 140 outputs high-pressure gas, a compressed airflow is formed at the input end of the vacuum device 150, and the vacuum device 150 uses the flow of compressed air to create a certain degree of vacuum. In other embodiments, the sixth solenoid valve 206 may be omitted, and the vacuum device 150 may be driven by an independent power source to generate a vacuum.

[0039] In addition, a pressure switch is provided in the pressure tank 140. The pressure switch is used to detect the pressure of the pressure tank 140. When the pressure of the pressure tank 140 is lower than the preset value and the handle operation end is not in the injection state, the first valve port and the third valve port of the seventh solenoid valve 207 are opened, and the pressure of the pressure tank 140 is increased by the air pump 100 for use when injecting forcefully.

[0040] During normal injection, the second port of the third solenoid valve 203, the first port of the ninth solenoid valve 209, the third port of the seventh solenoid valve 207, the second port of the fourth solenoid valve 204, the second port of the second solenoid valve 202, the second port of the first solenoid valve 201, and the second port of the fifth solenoid valve 205 are closed. At the same time, the first and second ports of the seventh solenoid valve 207, the first port and the third port of the fourth solenoid valve 204 are opened, so that the air pump 100 can output compressed gas through the air push port 120 and pass through the seventh solenoid valve 207 and the fourth solenoid valve 204 in sequence to reach the handle operation end 130, providing injection power to the handle operation end 130.

[0041] Furthermore, under normal injection conditions, adjusting the opening of the ninth solenoid valve 209 can regulate the injection force, thereby achieving a micro-injection effect. By opening the second port of the fourth solenoid valve 204, the pressurized gas injected can be released.

[0042] During normal suction, the third valve port of the third solenoid valve 203, the second valve port of the second solenoid valve 202, the third valve port of the fourth solenoid valve 204, the second valve port of the first solenoid valve 201, and the second valve port of the fifth solenoid valve 205 are closed; at the same time, the first and second valve ports of the third solenoid valve 203 are opened, so that the suction port 110 of the air pump 100 can form a negative pressure gas and pass through the third solenoid valve 203 to reach the handle operating end 130, providing suction power for the handle operating end 130.

[0043] When a strong injection is required, the second port of the third solenoid valve 203, the first port of the ninth solenoid valve 209, the third port of the seventh solenoid valve 207, the second port of the fourth solenoid valve 204, the second port of the second solenoid valve 202, and the second port of the fifth solenoid valve 205 are closed. At the same time, the first and second ports of the seventh solenoid valve 207, the first and third ports of the fourth solenoid valve 204, and the first and second ports of the first solenoid valve 201 are opened. In addition to the compressed gas output from the air pump 100's push port 120 passing through the seventh solenoid valve 207 and the fourth solenoid valve 204 in sequence to reach the handle operating end 130, the compressed gas from the pressure tank 140 can also reach the handle operating end 130 through the first solenoid valve 201, thereby providing a larger injection force to the handle operating end 130.

[0044] When strong suction is required, the third valve port of the third solenoid valve 203, the second valve port of the second solenoid valve 202, the third valve port of the fourth solenoid valve 204, and the second valve port of the first solenoid valve 201 are closed; at the same time, the first and second valve ports of the third solenoid valve 203 and the first and second valve ports of the fifth solenoid valve 205 are opened. In addition to the air pump 100's suction port 110 forming negative pressure gas and passing through the third solenoid valve 203 to the handle operation end 130, the negative pressure gas formed at the output end of the vacuum device 150 can also pass through the fifth solenoid valve 205 to the handle operation end 130, thereby providing greater suction power to the handle operation end 130.

[0045] Furthermore, refer to Figure 2-8 The medication dispensing system also includes a manifold 400. The manifold 400 includes four sides, a top surface, and a bottom surface. The four sides are connected in sequence as a first side, a second side, a third side, and a fourth side. The first side and the third side are arranged opposite each other, and the second side and the fourth side are arranged opposite each other.

[0046] The first side of the manifold 400 has a first channel 410 and a third channel 430, and the third side of the manifold 400 has a second channel 420 and a ninth hole 509. The first channel 410, second channel 420, third channel 430, and ninth hole 509 are all straight groove structures that can be formed by directly drilling holes from their respective sides. After drilling holes from their respective sides, sealing plugs are screwed into the open ends of the first channel 410, second channel 420, and third channel 430, respectively, thereby sealing the first channel 410, second channel 420, and third channel 430.

[0047] The second side of the manifold 400 is provided with a first hole 501, a second hole 502, a third hole 503, a fourth hole 504, a first closed hole 701, a second closed hole 702, a tenth hole 510, a third closed hole 703, and a vent hole 600. The first hole 501, the second hole 502, the third hole 503, the fourth hole 504, the first closed hole 701, the second closed hole 702, the tenth hole 510, the third closed hole 703, and the vent hole 600 are all straight groove structures that can be formed by directly drilling holes from the corresponding side.

[0048] The fourth side of the busbar 400 has a seventh hole 507, a sixth hole 506, a fifth hole 505, and an eighth hole 508 sequentially formed. The seventh hole 507, the sixth hole 506, the fifth hole 505, and the eighth hole 508 are all straight groove structures that can be formed by directly drilling holes from their respective sides. The seventh hole 507 penetrates through both the fourth and second sides of the busbar 400.

[0049] Nineteen through holes 800 are also provided on the top of the busbar 400. The through holes 800 are straight groove structures that can be formed by drilling directly from the corresponding side.

[0050] The first solenoid valve 201, the second solenoid valve 202, the third solenoid valve 203, the fourth solenoid valve 204, the fifth solenoid valve 205, the sixth solenoid valve 206, the seventh solenoid valve 207, and the ninth solenoid valve 209 are sequentially installed on the top of the manifold 400, and the manifold 400 has two mounting holes corresponding to the position of each solenoid valve.

[0051] The first hole 501 is connected to the first channel 410, and the opening of the first hole 501 is connected to the handle operation end 130.

[0052] The second hole 502 is connected to the first channel via the first solenoid valve 201. It can be understood that one end of the second hole 502 is connected to the second valve port of the first solenoid valve 201 via a corresponding through hole 800, and the first valve port of the first solenoid valve 201 is connected to the first channel via the corresponding through hole 800. The opening of the second hole 502 is connected to the output end of the pressure tank 140.

[0053] The third hole 503 is connected to the first channel 410 via the second solenoid valve 202. It can be understood that the first valve port of the second solenoid valve 202 is connected to the third hole 503 via a corresponding through hole 800, and the second valve port of the second solenoid valve 202 is connected to the first channel 410 via a corresponding through hole 800. The opening of the third hole 503 connects to the outside as an exhaust port 300, and the third hole 503 is connected to the third channel 430.

[0054] The fourth port 504 is connected to both the first channel 410 and the third channel 430 via the third solenoid valve 203. It can be understood that the first valve port of the third solenoid valve 203 is connected to the fourth port 504 via a corresponding through-hole 800, and the opening of the fourth port 504 is used to connect to the air intake port 110 of the air pump 100. The second valve port of the third solenoid valve 203 is connected to the first channel 410 via a corresponding through-hole 800, and the third valve port of the third solenoid valve 203 is connected to the third channel 430 via a corresponding through-hole 800.

[0055] After drilling holes from the corresponding sides, sealing plugs are screwed into the open ends of the first closed hole 701, the second closed hole 702, and the third closed hole 703, respectively, thereby sealing the first closed hole 701, the second closed hole 702, and the third closed hole 703. The first closed hole 701, the second closed hole 702, and the third closed hole 703 are all connected to the second channel 420.

[0056] The first closed orifice 701 is connected to the first channel 410 and the third channel 430 respectively through the fourth solenoid valve 204. It can be understood that the first valve port of the fourth solenoid valve 204 is connected to the first closed orifice 701 through the corresponding through hole 800, the second valve port of the fourth solenoid valve 204 is connected to the third channel 430 through the corresponding through hole 800, and the third valve port of the fourth solenoid valve 204 is connected to the first channel 410 through the corresponding through hole 800.

[0057] The second closed port 702 is connected to the tenth port 510 and the eighth port 508 via the seventh solenoid valve 207. It can be understood that the first valve port of the seventh solenoid valve 207 is connected to the tenth port 510 via a corresponding through-hole 800, and the opening of the tenth port 510 is connected to the air pump port 120 of the air pump 100. The second valve port of the seventh solenoid valve 207 is connected to the second closed port 702 via a corresponding through-hole 800. The third valve port of the seventh solenoid valve 207 is connected to the eighth port 508 via a corresponding through-hole 800, and the opening of the eighth port 508 is connected to the input end of the pressure tank 140.

[0058] The third closed orifice 703 is connected to the vent 600 via the ninth solenoid valve 209. It can be understood that the first valve port of the ninth solenoid valve 209 is connected to the third closed orifice 703 via the corresponding through hole 800, and the second valve port of the ninth solenoid valve 209 is connected to the vent 600 via the corresponding through hole 800. The opening of the vent 600 forms the vent 310.

[0059] The fifth port 505 is connected to the sixth solenoid valve 206. It can be understood that the first valve port of the sixth solenoid valve 206 is connected to the fifth port 505 through the corresponding through hole 800, and the second valve port of the sixth solenoid valve 206 is connected to the sixth port 506 through the corresponding through hole 800.

[0060] The opening of the fifth hole 505 connects to the opening of the seventh hole 507. Since the seventh hole 507 passes through both sides of the manifold 400, the opening of the seventh hole 507 is far from the opening connected to the fifth hole 505 and connects to the vacuum device 150. When the opening of the sixth hole 506 connects to the input end of the pressure tank 140, the opening of the sixth hole 506 can connect to the opening of the ninth hole 509, thus connecting both the sixth hole 506 and the eighth hole 508 to the input end of the pressure tank. When the opening of the sixth hole 506 connects to the output end of the pressure tank 140, the opening of the sixth hole 506 and the opening of the second hole 502 are jointly connected to the output end of the pressure tank 140.

[0061] The opening of the seventh hole 507 is connected to the first channel 410 through the fifth solenoid valve 205. It can be understood that the first valve port of the fifth solenoid valve 205 is connected to the seventh hole through the corresponding through hole 800, and the second valve port of the fifth solenoid valve 205 is connected to the first channel 410 through the corresponding through hole 800.

[0062] In this embodiment, when the manifold 400 is in use, the first solenoid valve 201, the second solenoid valve 202, the third solenoid valve 203, the fourth solenoid valve 204, the fifth solenoid valve 205, the sixth solenoid valve 206, the seventh solenoid valve 207, and the ninth solenoid valve 209 are installed side by side on the top surface of the first manifold 400. Each solenoid valve is connected to the corresponding channel or hole through the corresponding through hole 800. The opening of the first hole 501 is connected to the handle operating end 130; the opening of the second hole 502 is connected to the output end of the pressure tank; the opening of the third hole 503 is connected to the outside as an exhaust port 300; the opening of the fourth hole 504 is connected to the air intake port 110 of the air pump 100; the opening of the fifth hole 505 is connected to one end of the seventh hole 507; the other end of the seventh hole 507 is connected to the vacuum device 150; the opening of the sixth hole 506 is connected to the output end of the pressure tank 140 or to the input end of the pressure tank 140 through the ninth hole 509; the opening of the eighth hole 508 is connected to the input end of the pressure tank 140; and the opening of the tenth hole 510 is connected to the air push port 120 of the air pump 100.

[0063] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A dispensing system for providing power to a handle operating end, characterized in that, The medication dispensing system includes: An air pump is provided with an air inlet and an air outlet. The air inlet is connected to a third solenoid valve, which is connected to the operating end of the handle. The air outlet is connected to a fourth solenoid valve, which is connected to the operating end of the handle. The pressure tank has a first solenoid valve connected to its output end, and the first solenoid valve is connected to the operating end of the handle. The vacuum device has a fifth solenoid valve connected to its output end, and the fifth solenoid valve is connected to the operating end of the handle. The seventh solenoid valve is connected to the air inlet, the fourth solenoid valve, and the pressure tank.

2. The dispensing system according to claim 1, characterized in that: A sixth solenoid valve is connected between the pressure tank and the vacuum device, and the pressure tank can provide power to the vacuum device.

3. The dispensing system according to claim 2, characterized in that: The third solenoid valve is connected to the fourth solenoid valve, and the third solenoid valve is also connected to a second solenoid valve. The second solenoid valve is connected to the operating end of the handle, and an exhaust port is provided between the second solenoid valve and the third solenoid valve.

4. The dispensing system according to claim 3, characterized in that: The air inlet is also connected to a ninth solenoid valve, and the ninth solenoid valve is connected to a vent.

5. The dispensing system according to claim 4, characterized in that: It also includes a manifold, which has a closed first channel. The manifold has a first hole connected to the handle operating end, a second hole connected to the pressure tank, a third hole forming the exhaust port, and a fourth hole connected to the intake port. The first hole is connected to the first channel, the second hole is connected to the first channel through the first solenoid valve, the third hole is connected to the first channel through the second solenoid valve, and the fourth hole is connected to the first channel through the third solenoid valve.

6. The dispensing system according to claim 5, characterized in that: The manifold is provided with a vent hole, an eighth hole, a ninth hole, a tenth hole, and a second channel, a first closed hole, a second closed hole, and a third closed hole, all of which are closed. The first closed hole, the second closed hole, and the third closed hole are all connected to the second channel. The first closed hole is connected to the first channel through the fourth solenoid valve. The second closed hole is connected to the eighth hole through the seventh solenoid valve. The eighth hole is connected to the ninth hole. The tenth hole is connected to the seventh solenoid valve. The vent hole forms the vent outlet. The third closed hole is connected to the vent hole through the ninth solenoid valve.

7. The dispensing system according to claim 6, characterized in that: The manifold is provided with a closed third channel, which is connected to the second solenoid valve, the third solenoid valve and the fourth solenoid valve respectively, and the third channel is connected to the third hole.

8. The dispensing system according to claim 7, characterized in that: The manifold is also provided with a fifth hole, a sixth hole and a seventh hole. The fifth hole and the sixth hole are connected through the sixth solenoid valve, the seventh hole is connected to the vacuum device, and the seventh hole is connected to the first channel through the fifth solenoid valve.

9. A dispensing system according to claim 8, characterized in that: All channels and holes on the busbar are straight groove structures.

10. A dispensing system according to claim 8, characterized in that: The top of the manifold has multiple through holes with straight groove structures. The first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the sixth solenoid valve and the seventh solenoid valve are all connected to the corresponding channels or holes through the corresponding through holes, and are all installed on the top of the manifold.

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