Gas pressure pulse injector

Abstract

The utility model discloses a gas pressure pulse syringe, and belongs to the field of pulse syringes, the gas pressure pulse syringe comprises an inner shell and a pedal switch used for starting pressure pulse, a main controller is fixedly mounted on the inner wall of the inner shell, an external TTL input interface is formed in the outer wall of the main controller, a gas filter is fixedly mounted on the inner wall of the main controller, and the gas filter is fixedly mounted on the outer wall of the main controller. A back pressure device and a pressure regulator are symmetrically and fixedly mounted on the inner wall of the main controller, a panel is mounted at the top of the main controller, and a plurality of buttons are fixedly mounted at the top of the panel; by arranging the pressure regulator, the pressure of gas in the inner cavity of the pipeline can be monitored in real time, so that the precision and stability of pressure control are improved, accurate linear control can still be realized under a high-pressure condition, and by arranging the button, the external TTL input interface and the foot switch, all the components can be used for starting pressure pulse, and the pressure pulse is controlled. And the operation flexibility and the application range of the equipment are improved.

Description

Technical Field

[0001] The present application relates to the technical field of pulse injectors, and in particular to a gas pressure pulse injector. Background Art

[0002] Existing gas pressure control devices mostly use a combination of electronic control systems and mechanical valves to achieve gas pressure regulation. These devices have achieved good results in some specific application scenarios, such as laboratory microinjection and precision coating on industrial production lines. However, as application demand continues to grow, the requirements for gas pressure control are also becoming increasingly stringent, especially for the precise control of pressure pulses. Traditional equipment often struggles to achieve the desired results. In addition, traditional equipment is usually large in size and high in cost, making it difficult to flexibly use in a variety of environments.

[0003] Specific solutions of existing technologies: Currently, common gas pressure control devices are mainly the following:

[0004] Electric valve control: The gas flow is adjusted by opening and closing the electric valve. The advantage is that it can achieve more precise pressure regulation, but the response speed is relatively slow and it is difficult to achieve fast pulse control.

[0005] Solenoid valve control: Gas pulses are achieved through the rapid opening and closing of the solenoid valve. The advantage is fast response speed, but it is prone to wear and tear after long-term use and has low reliability.

[0006] Pneumatic proportional valve control: Linear control of gas pressure is achieved through the adjustment of the pneumatic proportional valve. The advantage is high precision, but the structure is complex and the cost is high.

[0007] These methods have their own advantages and disadvantages, but in practical applications they generally have problems such as slow response speed, low accuracy, and low reliability.

[0008] Deficiencies of existing technology: Although existing gas pressure control equipment can meet basic needs to a certain extent, it still has obvious deficiencies in the following aspects:

[0009] Accuracy issues: Traditional gas pressure control equipment often has difficulty achieving highly precise linear control when regulating pressure, especially when fast switching pressure pulses are required.

[0010] Reliability issues: Due to long-term operation, the mechanical components in the equipment are prone to wear, resulting in performance degradation or even failure.

[0011] Cost issue: High-performance gas pressure control equipment is usually expensive, which limits its popularity in certain low-cost application scenarios.

[0012] Flexibility issues: Most devices are large in size, difficult to carry, and difficult to adapt to the needs of use in different environments. Utility Model Content

[0013] In view of the deficiencies of the prior art, the utility model provides a gas pressure pulse injector, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.

[0014] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a gas pressure pulse injector, comprising an inner shell and a foot switch for starting the pressure pulse, a main controller is fixedly installed on the inner wall of the inner shell, an external TTL input interface is provided on the outer wall of the main controller, a gas filter is fixedly installed on the inner wall of the main controller, a back pressure device and a pressure regulator are symmetrically fixedly installed on the inner wall of the main controller, a panel is installed on the top of the main controller, a plurality of buttons are fixedly installed on the top of the panel, one end of the pipeline is fixedly connected to the outside of the gas filter, the other end of the pipeline is fixedly connected to a sealing plug, the outer edge of the sealing plug is plugged with a body, the inner wall of the body is slidably connected with a piston, and the inner cavity of the gas filter is fixedly installed with a filter element.

[0015] As a preferred embodiment, a through slot is formed through the inner wall of the inner shell, and the through slot corresponds to the position of the external TTL input interface.

[0016] By adopting the above technical solution, the wiring harness can be connected to the external TTL input interface through the through slot. The external TTL input interface uses a standard industrial-grade interface with strong compatibility.

[0017] As a preferred embodiment, a timer is fixedly installed on the top of the panel.

[0018] By adopting the above technical solution, the staff can set the time before the operation, and then observe the operation time in real time, to ensure the accuracy of the injection and avoid discomfort to the patient caused by too long time.

[0019] As a preferred embodiment, the filtration accuracy of the filter element is as high as 0.01 μm, and the measurement error of the pressure regulator is less than ±0.1%.

[0020] By adopting the above technical solution, the purity of the gas entering the system can be ensured, thereby improving the reliability of the equipment and ensuring that precise linear control can still be achieved under high pressure conditions.

[0021] As a preferred embodiment, the side of the gas filter away from the pipeline is fixedly connected to the air inlet pipe, and the air inlet pipe, the gas filter and the pipeline are in communication.

[0022] By adopting the above technical solution, the gas can be discharged through the air inlet pipe, and then filtered by the filter element in the inner cavity of the gas filter before being discharged into the inner cavity of the pipeline, thereby ensuring the cleanliness of the gas.

[0023] As a preferred embodiment, the back pressure device is made of stainless steel, and the button is of high-sensitivity touch type.

[0024] By adopting the above technical solution, the durability of the back pressure device can be improved, ensuring that it will not be easily corroded, and its service life is increased. The high-sensitivity touch type can ensure convenient operation.

[0025] As a preferred embodiment, the number of the inner shells is several and they are arranged in parallel. The bottoms of the several inner shells are provided with outer shells, and the tops are provided with protective plates.

[0026] By adopting the above technical solution, multiple main controllers can be stacked, which is convenient for expansion and maintenance. The outer shell can protect the equipment in the inner cavity of the inner shell and ensure that it is not directly exposed to the outside.

[0027] Beneficial effects of this application:

[0028] 1. This gas pressure pulse injector can monitor the pressure of the gas in the pipeline cavity in real time by setting a pressure regulator, thereby improving the accuracy and stability of pressure control and ensuring precise linear control under high pressure conditions. By setting a button, an external TTL input interface and a foot switch, they can all be used to start the pressure pulse, improving the operational flexibility and applicability of the equipment.

[0029] 2. The gas pressure pulse injector significantly improves the reliability and maintenance convenience of the equipment by setting a gas filter, filter element and back pressure device, ensuring the purity of the gas entering the system and preventing reverse flow caused by capillary action after the pulse. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of this application;

[0031] Figure 2 This is a schematic diagram of the internal structure of this application;

[0032] Figure 3 This is a schematic diagram of the expanded structure of this application;

[0033] Figure 4 This is a schematic diagram of the cross-sectional structure of the main controller of this application;

[0034] Figure 5 This is a schematic diagram of the expanded and cross-sectional structure of the filter element of this application.

[0035] Numbers in the figure: 1. Inner shell; 2. Foot switch; 3. Through slot; 4. Main controller; 5. External TTL input interface; 6. Gas filter; 7. Back pressure device; 8. Pressure regulator; 9. Panel; 10. Button; 11. Timer; 12. Pipeline; 13. Sealing plug; 14. Main body; 15. Piston; 16. Filter element; 17. Outer shell; 18. Protective plate. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0037] Reference Figure 1-5 , a gas pressure pulse injector comprises an inner shell 1 and a foot switch 2 for starting a pressure pulse, a main controller 4 is fixedly mounted on the inner wall of the inner shell 1, an external TTL input interface 5 is provided on the outer wall of the main controller 4, a gas filter 6 is fixedly mounted on the inner wall of the main controller 4, a back pressure device 7 and a pressure regulator 8 are symmetrically fixedly mounted on the inner wall of the main controller 4, a panel 9 is mounted on the top of the main controller 4, a number of buttons 10 are fixedly mounted on the top of the panel 9, one end of a pipe 12 is fixedly connected to the outside of the gas filter 6, the other end of the pipe 12 is fixedly connected to a sealing plug 13, a body 14 is plugged into the outer edge of the sealing plug 13, a piston 15 is slidably connected to the inner wall of the body 14, and a filter element 16 is fixedly mounted in the inner cavity of the gas filter 6.

[0038] See Figure 2 and Figure 3 A through slot 3 is provided through the inner wall of the inner shell 1, and the position of the through slot 3 corresponds to the position of the external TTL input interface 5, so that the wiring harness can be connected to the external TTL input interface 5 through the through slot 3. The external TTL input interface 5 uses a standard industrial-grade interface with strong compatibility.

[0039] See Figure 2 and Figure 3 A timer 11 is fixedly installed on the top of the panel 9, so that the staff can set the time before the operation, and then observe the operation time in real time, to ensure the accuracy of the injection and avoid discomfort to the patient caused by too long time.

[0040] See Figure 4 and Figure 5 The filtration accuracy of the filter element 16 is as high as 0.01 μm, and the measurement error of the pressure regulator 8 is less than ±0.1%, which can ensure the purity of the gas entering the system, thereby improving the reliability of the equipment and ensuring that precise linear control can still be achieved under high pressure conditions.

[0041] See Figure 2and Figure 5 The gas filter 6 is fixedly connected to an air inlet pipe on the side away from the pipeline 12, and the air inlet pipe, the gas filter 6 and the pipeline 12 are connected, so that the gas can be discharged through the air inlet pipe, and then filtered by the filter element 16 in the inner cavity of the gas filter 6 before being discharged into the inner cavity of the pipeline 12, thereby ensuring the cleanliness of the gas.

[0042] See Figure 3 and Figure 4 The back pressure device 7 is made of stainless steel, and the button 10 adopts a high-sensitivity touch type, which can improve the durability of the back pressure device 7, ensure that it will not be easily corroded, and increase its service life. The high-sensitivity touch button 10 can ensure convenient operation.

[0043] See Figure 1 Hehe Figure 2 The number of inner shells 1 is arranged in parallel combination. The bottom of several inner shells 1 is provided with an outer shell 17, and the top of 17 is installed with a protective plate 18, so that multiple main controllers 4 can be stacked, which is convenient for expansion and maintenance. The outer shell 17 can protect the equipment in the inner cavity of the inner shell 1 and ensure that it will not be directly exposed to the outside.

[0044] Working principle: When using the device, the gas is first discharged through the air inlet pipe, and then filtered by the filter element 16 in the inner cavity of the gas filter 6 before being discharged into the inner cavity of the pipe 12, thereby ensuring the cleanliness of the gas. The gas can then push the piston 15 to move on the inner wall of the main body 14, thereby realizing the injection operation. At the same time, the pressure regulator 8 can be used to monitor the pressure of the gas in the inner cavity of the pipe 12 in real time, thereby improving the accuracy and stability of pressure control and ensuring that precise linear control can still be achieved under high pressure conditions. By setting the back pressure device 7, a back pressure of 0-15 psi0-100 kPa can be provided to prevent reverse flow caused by capillary action after the pulse. The button 10, the external TTL input interface 5 and the foot switch 2 can all be used to start the pressure pulse, thereby improving the operational flexibility and applicability of the equipment.

[0045] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "two ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0047] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present invention. Those skilled in the art may make various modifications and variations to the present invention based on the spirit and principles of the present invention, and such modifications and variations are also within the scope of the present invention.

Claims

1. A gas pressure pulse injector comprising an inner housing (1) and a foot switch (2) for initiating a pressure pulse, characterized in that: A main controller (4) is fixedly mounted on the inner wall of the inner shell (1), an external TTL input interface (5) is provided on the outer wall of the main controller (4), a gas filter (6) is fixedly mounted on the inner wall of the main controller (4), a back pressure device (7) and a pressure regulator (8) are symmetrically fixedly mounted on the inner wall of the main controller (4), a panel (9) is mounted on the top of the main controller (4), a plurality of buttons (10) are fixedly mounted on the top of the panel (9), one end of a pipe (12) is fixedly connected to the outer side of the gas filter (6), the other end of the pipe (12) is fixedly connected to a sealing plug (13), the outer edge of the sealing plug (13) is plugged with a body (14), the inner wall of the body (14) is slidably connected with a piston (15), and a filter element (16) is fixedly mounted in the inner cavity of the gas filter (6).

2. The gas pressure pulse injector according to claim 1, characterized in that A through slot (3) is provided through the inner wall of the inner shell (1), and the position of the through slot (3) corresponds to the position of the external TTL input interface (5).

3. The gas pressure pulse injector according to claim 1, characterized in that A timer (11) is fixedly mounted on the top of the panel (9).

4. The gas pressure pulse injector according to claim 1, characterized in that The filtration accuracy of the filter element (16) is as high as 0.01 μm, and the measurement error of the pressure regulator (8) is less than ±0.1%.

5. The gas pressure pulse injector according to claim 1, characterized in that An air inlet pipe is fixedly connected to the side of the gas filter (6) away from the pipeline (12), and the air inlet pipe, the gas filter (6) and the pipeline (12) are in communication.

6. The gas pressure pulse injector according to claim 1, characterized in that The back pressure device (7) is made of stainless steel, and the button (10) is of high-sensitivity touch type.

7. The gas pressure pulse injector according to claim 1, characterized in that The number of the inner shells (1) is several and they are arranged in parallel combination, and the bottoms of the several inner shells (1) are provided with outer shells (17), and the tops of the (17) are provided with protective plates (18).

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