Integrated gas circuit device

Abstract

The utility model provides an integrated gas circuit device, which relates to the technical field of gas circuit design of dispensing machines and comprises a gas circuit valve block component and a flow regulating valve. The gas path valve block assembly comprises a positive pressure connector, a working connector, a gas leakage connector and a negative pressure connector. The gas path valve block assembly further comprises six valve bodies fixed to the upper portion of the gas path valve block assembly. Four gas paths are arranged in the gas path valve block assembly; air ports of the first air channel, the second air channel, the third air channel and the fourth air channel are a positive pressure connector, a working connector, an air leakage connector and a negative pressure connector respectively. According to the integrated gas circuit device, the length of the integrated gas circuit device can be reduced, and miniaturization and portability of dispensing equipment can be achieved conveniently.

Description

Technical Field

[0001] This utility model relates to the field of gas path design technology for dispensing machines, and more specifically, to an integrated gas path device. Background Technology

[0002] In the operating system of a dispensing machine, the handle drive plays a crucial role. Its main operation involves using a specific drive mechanism to achieve the forward and backward movement of the handle. However, the drive mechanisms currently used generally suffer from complex structures, making the switching between the forward and backward movement modes of the handle extremely cumbersome. This significantly hinders the overall efficiency of the dispensing process and fails to meet the actual needs of efficient and accurate dispensing operations. Optimization and improvement are urgently needed to enhance its convenience and smoothness.

[0003] The dispensing machine can use a separate air pump or an air tank plus an air pump as the driving mechanism. By precisely controlling the air pressure and the movement of the air pump, it can achieve high-precision metering and stable delivery of the drug solution. For example, when preparing some drugs with strict dosage requirements, the air circuit system can accurately control the volume of drug solution drawn or discharged by the syringe, ensuring the accurate proportion of components in each dose, thereby guaranteeing the efficacy and safety of the drug.

[0004] In related technologies, multiple pneumatic valve block assemblies are arranged in a straight line and interconnected, forming a relatively long linear structure within the device. In some applications where a compact overall layout is required, such as miniaturized dispensing machines or other precision instruments, this linear layout may occupy a large amount of valuable space, limiting the placement space of other components, or leading to an increase in the overall size of the device, which is not conducive to the miniaturization and portability of the device. Utility Model Content

[0005] The problem solved by this invention is how to reduce the length of the integrated gas path device, so as to facilitate the miniaturization and portability of the dispensing equipment.

[0006] To solve the above problems, this utility model provides an integrated pneumatic circuit device, including: a pneumatic circuit valve block assembly and a flow regulating valve;

[0007] The gas path valve block assembly includes a positive pressure port, a working port, a vent port, and a negative pressure port; the gas path valve block assembly also includes a first valve body, a second valve body, a third valve body, a fourth valve body, a fifth valve body, and a sixth valve body fixed above it; the gas path valve block assembly is provided with a first gas path, a second gas path, a third gas path, and a fourth gas path, wherein the gas ports of the first gas path, the second gas path, the third gas path, and the fourth gas path are respectively the positive pressure port, the working port, the vent port, and the negative pressure port; the positive pressure port is connected to a positive pressure gas source; the working port is connected to the inlet of the flow regulating valve; the vent port is connected to the atmosphere; and the negative pressure port is connected to a negative pressure gas source.

[0008] The first air passage and the second air passage are connected to each other via the first valve body and the fourth valve body, respectively. The first air passage and the fourth air passage are connected via the second valve body. The third air passage and the fourth air passage are connected via the third valve body. The first air passage and the third air passage are connected via the fifth valve body. The second air passage and the third air passage are connected via the sixth valve body.

[0009] Optionally, it also includes an operating handle and a main control board. The operating handle is connected to the main control board and is used to send control commands to the main control board. The main control board is connected to the valve body in the flow regulating valve and the air circuit valve block assembly and is used to control the working state of the air circuit valve block assembly and the flow regulating valve according to the received commands.

[0010] Optionally, the main control board is also provided with a gas flow control button or knob on the host device to control the opening degree of the flow regulating valve.

[0011] Optionally, both the positive pressure gas source and the negative pressure gas source are vacuum pumps, and the positive pressure port (101) and the negative pressure port (104) are respectively connected to the positive pressure port and the negative pressure port of the vacuum pump.

[0012] Optionally, it also includes a power supply for providing electrical power to the pneumatic valve block assembly, the flow regulating valve, the operating handle, and the main control board.

[0013] Optionally, pressure sensors are provided in the first gas path, the second gas path, the third gas path, and the fourth gas path to monitor the gas pressure in the gas path in real time and send it to the main control board.

[0014] Optionally, flow sensors are provided in the first gas path, the second gas path, the third gas path, and the fourth gas path to measure the gas flow rate in the gas path and send it to the main control board.

[0015] Optionally, a gas composition sensor is provided at the outlet of the flow regulating valve to monitor the composition of the gas and send it to the main control board.

[0016] The advantages of this integrated pneumatic circuit device are as follows: multiple pneumatic components (Y1-Y6 solenoid valves) are integrated into one device, and this compact design effectively reduces the space occupied by the pneumatic system in the equipment. Compared with dispersed or linearly arranged pneumatic components, it is more conducive to the miniaturization design of the equipment and is suitable for applications with high space requirements, such as precision medical instruments. At the same time, the compact pneumatic circuit arrangement can save gas flow consumption, and during maintenance, technicians can more easily inspect and repair the entire pneumatic system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an integrated gas circuit device according to the present invention;

[0018] Figure 2 This is a schematic diagram showing the valve body position of the pneumatic valve block assembly of this utility model;

[0019] Figure 3 This is a diagram showing the air circuit connection of the air circuit valve block assembly of this utility model. Explanation of reference numerals:

[0020] 1. Gas valve block assembly; 2. Flow regulating valve; 201. Inlet; 202. Outlet; 3. Operating handle; 4. Main control board; 5. Gas flow control button or knob;

[0021] 101. Positive pressure port; 102. Working port; 103. Vent port; 104. Negative pressure port; 111. First air passage; 112. Second air passage; 113. Third air passage; 114. Fourth air passage; Y1. First valve body; Y2. Second valve body; Y3. Third valve body; Y4. Fourth valve body; Y5. Fifth valve body; Y6. Sixth valve body. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0023] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0024] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0025] like Figures 1 to 3 As shown in the figure, an integrated gas circuit device provided by this utility model embodiment includes a gas circuit valve block assembly 1 and a flow regulating valve 2.

[0026] The gas path valve block assembly 1 includes a positive pressure port 101, a working port 102, a vent port 103, and a negative pressure port 104. The working port 102 of the gas path valve block assembly 1 is connected to the inlet 201 of the flow regulating valve 2, and the gas output from the gas path valve block assembly 1 enters the flow regulating valve 2 for flow regulation. The gas path valve block assembly 1 also includes six valve bodies fixed on it, namely the first valve body Y1, the second valve body Y2, the third valve body Y3, the fourth valve body Y4, the fifth valve body Y5, and the sixth valve body Y6. Among them, the first valve body Y1, the second valve body Y2, the third valve body Y3, and the fourth valve body Y4 are arranged in a square, and the fifth valve body Y5 and the sixth valve body Y6 are arranged on one side of the square structure.

[0027] The air passage valve block assembly 1 has four air passages: a first air passage 111, a second air passage 112, a third air passage 113, and a fourth air passage 114. The air ports of the first air passage 111, the second air passage 112, the third air passage 113, and the fourth air passage 114 are a positive pressure port 101, a working port 102, a vent port 103, and a negative pressure port 104, respectively. The positive pressure port 101 and the working port 102 are located on one side of the air passage valve block assembly 1, while the vent port 103 and the negative pressure port 104 are located on the other side.

[0028] The first air passage 111 and the second air passage 112 are connected by the first valve body Y1 and the fourth valve body Y4, respectively. The first air passage 111 and the fourth air passage 114 are connected by the second valve body Y2. The third air passage 113 and the fourth air passage 114 are connected by the third valve body Y3. The first air passage 111 and the third air passage 113 are connected by the fifth valve body Y5. The second air passage 112 and the third air passage 113 are connected by the sixth valve body Y6.

[0029] It should be noted that each valve body in the flow regulating valve 2 and the air circuit valve block assembly 1 can be controlled mechanically or pneumatically. For example, the valve body can be controlled by manually operating the handle through mechanical transmission or pneumatic drive, or it can be controlled electronically.

[0030] In this embodiment, multiple pneumatic components (such as Y1-Y6 solenoid valves) are integrated into a single device. This compact design effectively reduces the space occupied by the pneumatic system within the equipment. Compared to dispersed or linearly arranged pneumatic components, this design is more conducive to miniaturization and suitable for applications with high space requirements, such as precision medical instruments. Furthermore, during maintenance, technicians can more easily inspect and repair the entire pneumatic system.

[0031] Specifically, in the gas circuit valve block assembly 1, the positive pressure port 101 is connected to the positive pressure gas source; the working port 102 is connected to the air inlet 201 of the flow regulating valve 2, and the gas output from the gas circuit valve block assembly 1 enters the flow regulating valve 2 for flow regulation; the vent port 103 is connected to the atmosphere and is a natural vent port; and the negative pressure port 104 is connected to the negative pressure gas source.

[0032] The outlet 202 of the flow regulating valve 2 is connected to the gas pipeline of the operating handle 3. The gas, after being regulated by the flow regulating valve 2, flows to the operating handle 3 for subsequent operation control.

[0033] Optionally, the integrated pneumatic circuit device also includes an operating handle 3 and a main control board 4. The operating handle 3 is connected to the main control board 4 and is used to send control commands to the main control board. When the operating handle 3 is operated, the main control board 4 controls the working state of the pneumatic circuit valve block assembly 1 and the flow regulating valve 2 according to the received signals, so as to realize the overall coordinated control of the pneumatic circuit system.

[0034] In this optional embodiment, the main control board 4 is connected to the flow regulating valve 2 and the six valve bodies (Y1 to Y6) in the gas path valve block assembly 1, and is used to control the working state of the gas path valve block assembly 1 and the flow regulating valve 2 according to the received instructions. Specifically, it controls the opening degree of the flow regulating valve 2 and controls the gas flow direction and on / off state in the gas path valve block assembly 1.

[0035] The opening and closing state of the solenoid valve in the gas circuit valve block assembly 1 can also be directly affected by the operating handle 3 through mechanical or pneumatic means, thereby realizing different gas circuit functions (such as installing a dissolving device, gas forward, gas backward, etc.).

[0036] Optionally, the main control board 4 is also equipped with a gas flow control button or knob 5 to control the opening of the flow regulating valve 2, thereby adjusting the gas flow rate. This electronic control method can achieve precise flow regulation to meet the gas demand under different operating conditions.

[0037] In this optional embodiment, the pneumatic valve block assembly 1, the flow regulating valve 2, the operating handle 3, and the main control board 4 are connected by pneumatic and electrical connections to form an organic whole, realizing precise control, flow regulation, and operation control of the pneumatic system. By controlling the working state of the pneumatic valve block assembly 1 and the flow regulating valve 2, the overall coordinated control of the pneumatic system is achieved, thereby realizing efficient, precise, and flexible control of the pneumatic system.

[0038] Optionally, both the positive pressure gas source and the negative pressure gas source are vacuum pumps, and the positive pressure port 101 and the negative pressure port 104 are connected to the positive pressure port and the negative pressure port of the vacuum pump, respectively.

[0039] In this optional embodiment, the vacuum pump can switch between positive and negative pressure. By using a vacuum pump that can switch between positive and negative pressure as a gas source, the number of gas source devices can be reduced, making the structure of the entire integrated gas circuit device more compact, occupying less space, and reducing maintenance workload and maintenance costs.

[0040] Optionally, the integrated pneumatic circuit device of this utility model also includes a power supply for providing electrical energy to the pneumatic circuit valve block assembly 1, the flow regulating valve 2, the operating handle 3, and the main control board 4.

[0041] In this optional embodiment, the operator can easily turn the entire integrated pneumatic circuit device on or off by switching the power on or off, without having to search for different power interfaces or switches in the various components of the device.

[0042] Optionally, the diameters of the first air passage 111, the second air passage 112, the third air passage 113, and the fourth air passage 114 are 2 to 12 mm.

[0043] Specifically, the diameters of the first air passage 111, the second air passage 112, the third air passage 113, and the fourth air passage 114 are 2 to 6 mm.

[0044] In this optional embodiment, because the small device is mainly used for precise control of dissolving small doses of drug solution, the gas flow rate requirement is relatively low. In small drug dissolving machines or gas path devices used for drug dissolving in laboratories, a small gas path diameter is sufficient to meet its operating requirements. A small gas path diameter can provide an appropriate gas flow rate while also ensuring good pressure control.

[0045] Optionally, the first gas passage 111, the second gas passage 112, the third gas passage 113 and the fourth gas passage 114 are made of metal materials such as aluminum, preferably aluminum alloy.

[0046] In this optional embodiment, aluminum and other metallic materials possess high strength. Compared to some plastic materials (such as polyvinyl chloride or polyurethane), aluminum alloys can withstand higher pressures. Furthermore, the pneumatic system operates under complex conditions such as frequent pressure changes, temperature variations, and mechanical vibrations. Aluminum alloys exhibit excellent fatigue resistance, enabling them to operate stably for extended periods under these harsh conditions, reducing the likelihood of fatigue-induced cracks or damage and ensuring the reliability of the pneumatic system.

[0047] Optionally, pressure sensors are provided in the first gas path 111, the second gas path 112, the third gas path 113 and the fourth gas path 114, which can monitor the gas pressure in the gas path in real time and send it to the main control board 4.

[0048] In this optional embodiment, the data from the pressure sensor can be fed back to the main control system to achieve precise control of the gas pressure and ensure that the gas pressure is stable within a suitable range.

[0049] Optionally, flow sensors are provided in the first gas path 111, the second gas path 112, the third gas path 113 and the fourth gas path 114, which can measure the flow rate of gas in the gas path and send it to the main control board 4.

[0050] In this optional embodiment, monitoring the flow rate can ensure the accuracy of the gas flow rate required during the drug dissolution process, and can also be used to detect leaks in the gas path. If the flow sensor detects a discrepancy between the actual flow rate and the set flow rate, and normal process variations have been ruled out, abnormalities such as gas path leaks can be detected in a timely manner, triggering an alarm and prompting appropriate measures.

[0051] Optionally, a gas composition sensor is installed at the outlet of the flow regulating valve 2 to monitor the composition of the gas and send it to the main control board 4.

[0052] In this optional embodiment, for some special drug dissolution processes, it may be necessary to monitor the composition of the gas. The gas composition sensor can detect the content of oxygen, nitrogen or other specific components in the gas in real time to ensure that the quality of the gas meets the drug dissolution requirements.

[0053] This utility model discloses an integrated pneumatic circuit device. When not in operation, the first valve body Y1, the second valve body Y2, the fourth valve body Y4, and the sixth valve body Y6 are normally closed, while the third valve body Y3 and the fifth valve body Y5 are normally open. During operation, the operating procedures for different working states are as follows:

[0054] 1. Start-up (clean air) status: Fourth valve Y4 is open.

[0055] At this time, gas enters the first gas path 111 from the positive pressure port 101, passes through the fourth valve body Y4 into the second gas path 112, then enters the flow regulating valve 2, passes through the filter, and finally enters the operating handle 3. It can provide clean air capable of achieving a Class 100 cleanroom environment. The clean air running in the gas path can remove dust, impurities, and other foreign objects that may be present in the gas path. This helps maintain the cleanliness of the gas path, maintains a clean environment at the handle's air outlet, and prevents foreign objects from entering the drug dissolving system and affecting drug quality. Simultaneously, a portion of the gas enters the first gas path 111 from the positive pressure port 101, passes through the fifth valve body Y5 into the third gas path 113, then through the third valve body Y3 into the fourth gas path 114, and finally enters the negative pressure gas source. This path of the gas entering the negative pressure gas source helps balance the pressure inside the gas path system.

[0056] 2. Dissolving device installation status: Fourth valve Y4 is closed.

[0057] At this time, gas enters the first gas path 111 from the positive pressure port 101, passes through the fifth valve body Y5 into the third gas path 113, and then enters the vent 103. This is mainly to ensure that there is no pressure impact on the dissolving device during installation. Expelling the gas in the gas path prevents damage to the dissolving device due to unexpected gas pressure interference during installation, or to prevent inaccurate installation of the dissolving device due to gas flow.

[0058] Simultaneously, a portion of the gas enters the first gas path 111 from the positive pressure port 101, then enters the third gas path 113 via the fifth valve body Y5, then enters the fourth gas path 114 via the third valve body Y3, and finally enters the negative pressure gas source. This primarily maintains the path for gas flow to the negative pressure gas source, ensuring its normal operation.

[0059] 3. When the forward button is pressed: the first valve body Y1 is open and the fifth valve body Y5 is closed.

[0060] At this time, gas enters the first gas path 111 from the positive pressure port 101, passes through the first valve body Y1 into the second gas path 112, then enters the flow regulating valve 2, and finally enters the operating handle 3. This mainly drives the relevant components of the dissolving machine to work in the "forward" direction.

[0061] Simultaneously, gas enters the third gas path 113 from the vent 103, passes through the third valve body Y3 into the fourth gas path 114, and finally enters the negative pressure gas source. This circulation method helps stabilize the pressure within the gas path system.

[0062] 4. Release the forward button: The sixth valve Y6 is open for 5 seconds.

[0063] At this time, gas enters the second gas path 112 from the operating handle 3, passes through the sixth valve body Y6 into the third gas path 113, and then enters the vent 103. This allows residual gas in the operating handle 3 to be discharged and helps the gas path system return to its initial pressure state. This is to prevent residual gas at the operating handle from causing unexpected actions or interfering with the accurate control of the gas path state in the next operation.

[0064] 5. Back button press state: Third valve Y3 is closed, fourth valve Y4 is open.

[0065] At this time, gas enters the fourth gas path 114 from the negative pressure port 104, then enters the second gas path 112, and finally enters the flow regulating valve 2, and then the operating handle 3. This provides reverse power to the operating handle, driving the relevant components of the dissolving machine to work in the "reverse" direction.

[0066] Simultaneously, gas enters the first gas path 111 from the positive pressure port 101, passes through the fifth valve body Y5 into the third gas path 113, and finally enters the vent 103. This is mainly used to balance the distribution of positive and negative pressure gases in the system.

[0067] 6. Release the back button: The sixth valve body Y6 is open.

[0068] At this time, gas enters the second gas path 112 from the operating handle 3, passes through the sixth valve body Y6 into the third gas path 113, and then enters the vent 103. This allows residual gas in the operating handle 3 to be discharged, ensuring that there is no residual gas at the operating handle, and restoring the gas path system to a stable initial state.

[0069] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An integrated gas path device, characterized in that, include: Gas valve block assembly (1) and flow regulating valve (2); The gas valve block assembly (1) includes a positive pressure port (101), a working port (102), a vent port (103), and a negative pressure port (104); the gas valve block assembly (1) also includes a first valve body (Y1), a second valve body (Y2), a third valve body (Y3), a fourth valve body (Y4), a fifth valve body (Y5), and a sixth valve body (Y6) fixed above it; the gas valve block assembly (1) is provided with a first gas passage (111), a second gas passage (112), a third gas passage (113), and a fourth gas passage (114), wherein the first gas passage (111), the second gas passage (112), the third gas passage (113), and the fourth gas passage (114) are provided. The air inlets of the first air passage (111), the second air passage (112), the third air passage (113), and the fourth air passage (114) are the positive pressure port (101), the working port (102), the vent port (103), and the negative pressure port (104), respectively; the positive pressure port (101) is connected to a positive pressure air source; the working port (102) is connected to the air inlet (201) of the flow regulating valve (2); the vent port (103) is connected to the atmosphere; and the negative pressure port (104) is connected to a negative pressure air source. The first air passage (111) and the second air passage (112) are connected by the first valve body (Y1) and the fourth valve body (Y4) respectively. The first air passage (111) and the fourth air passage (114) are connected by the second valve body (Y2). The third air passage (113) and the fourth air passage (114) are connected by the third valve body (Y3). The first air passage (111) and the third air passage (113) are connected by the fifth valve body (Y5). The second air passage (112) and the third air passage (113) are connected by the sixth valve body (Y6).

2. The integrated gas path device according to claim 1, characterized in that, It also includes an operating handle (3) and a main control board (4). The operating handle (3) is connected to the main control board (4) and is used to send control commands to the main control board (4). The main control board (4) is connected to the flow regulating valve (2) and the valve body in the gas circuit valve block assembly (1) and is used to control the working state of the gas circuit valve block assembly (1) and the flow regulating valve (2) according to the received commands.

3. The integrated gas path device according to claim 2, characterized in that, The main control board (4) is also equipped with a gas flow control button or knob (5) to control the opening degree of the flow regulating valve (2).

4. The integrated gas path device according to claim 1, characterized in that, Both the positive pressure gas source and the negative pressure gas source are vacuum pumps, and the positive pressure port (101) and the negative pressure port (104) are respectively connected to the positive pressure port and the negative pressure port of the vacuum pump.

5. The integrated gas path device according to claim 2, characterized in that, It also includes a power supply for providing electrical energy to the pneumatic valve block assembly (1), the flow regulating valve (2), the operating handle (3) and the main control board (4).

6. The integrated gas path device according to claim 2, characterized in that, Pressure sensors are provided in the first gas path (111), the second gas path (112), the third gas path (113) and the fourth gas path (114) to monitor the gas pressure in the gas path in real time and send it to the main control board (4).

7. The integrated gas path device according to claim 2, characterized in that, Flow sensors are provided in the first gas path (111), the second gas path (112), the third gas path (113) and the fourth gas path (114) to measure the flow rate of gas in the gas path and send it to the main control board (4).

8. The integrated gas path device according to claim 2, characterized in that, A gas composition sensor is installed at the outlet of the flow regulating valve (2) to monitor the composition of the gas and send it to the main control board (4).

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