Pneumatically and electrically controlled peep control valve body
By using a pneumatically and electrically controlled PEEP control valve body, and employing a combination of permanent magnets and coils, the PEEP valve achieves rapid response and stable, continuously adjustable air pressure, solving the problems of slow response speed and low control accuracy in existing technologies, and reducing equipment costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-04-07
AI Technical Summary
Existing PEEP valves with excitation motor control are bulky, slow in response, have low safety factor and are expensive. Pneumatic PEEP valves have weak pressure relief capacity, slow pressure relief speed, and slow and unstable PEEP pressure response.
The PEEP control valve body, which is pneumatically and electrically controlled, uses a combination of permanent magnets and coils to control air pressure changes with current. Combined with the adjusting rod and guide sleeve structure, it achieves stable and continuously adjustable air pressure, thus solving the problems of slow response speed and low control accuracy.
This achieves rapid response of the PEEP valve and stable, continuously adjustable air pressure, improving control accuracy and safety while reducing equipment costs.
Smart Images
Figure CN224085791U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a pneumatically and electrically controlled PEEP control valve body. Background Technology
[0002] PEEP (Positive End-Expiratory Pressure) refers to the pressure in the airway that is higher than atmospheric pressure at the end of expiration, achieved by the patient or ventilator during inhalation, with the help of a diaphragm or similar device at the expiratory end. The PEEP valve is an essential component of a ventilator. It maintains a positive pressure in the airway at the end of expiration, preventing complete alveolar collapse, allowing collapsed alveoli to expand and atelectasis-free alveoli to re-expand, thus increasing functional residual capacity and lung compliance, and facilitating oxygen diffusion across the respiratory membrane.
[0003] Currently, among the methods for controlling PEEP valves on the market, the excitation motor control method uses an excitation motor for control. However, the excitation motor is large in size, making the product's mechanical structure design complex. Furthermore, the excitation motor has a slow response speed, cannot quickly respond to changes in PEEP pressure, has a low safety factor, and is expensive. Existing pneumatic PEEP valve control methods have relatively weak pressure relief capacity, slow pressure relief speed, slow PEEP pressure response speed, and instability. Therefore, we propose a pneumatically and electrically controlled PEEP control valve body. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pneumatically and electrically controlled peep control valve body.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A pneumatically and electrically controlled PEEP control valve body includes an upper valve body, a middle valve body, and a lower valve body, wherein the middle valve body is located between the upper valve body and the lower valve body, and the upper valve body, the middle valve body, and the lower valve body are all fixedly connected by screws;
[0007] A first connector is fixedly installed on the outer wall of the upper valve body, a third connector is fixedly installed on the outer wall of the upper valve body, a second connector is fixedly installed on the outer wall of the upper valve body, a groove is formed on the lower surface of the upper valve body, a first air passage is formed at the groove of the upper valve body, a second air passage and a third air passage are formed inside the upper valve body, the second air passage is connected to the first air passage through the groove, the first air passage is connected to the third connector, the second air passage is connected to the third air passage, the first connector is connected to the second air passage, and the second connector is connected to the third air passage.
[0008] An aluminum pad is provided in the groove of the upper valve body. A diaphragm is fixedly connected to the lower surface of the aluminum pad. A permanent magnet assembly is fixedly installed on the lower surface of the lower valve body. A coil is installed inside the permanent magnet assembly. A valve stem is sleeved inside the coil. A spring is sleeved at the bottom of the valve stem.
[0009] Preferably, a wire groove is fixedly installed on the outer wall of the lower valve body, and a terminal block is sleeved on the outer wall of the wire groove.
[0010] Preferably, an upper guide sleeve is fixedly sleeved in the middle of the valve body, and the upper guide sleeve is slidably sleeved with the valve stem.
[0011] Preferably, the permanent magnet assembly has a through hole in the middle, and an adjusting sleeve is installed at the threaded hole of the permanent magnet assembly. A lower guide sleeve is sleeved inside the adjusting sleeve, and the lower guide sleeve is sleeved with the valve stem. The lower guide sleeve is located below the spring.
[0012] Preferably, the permanent magnet assembly has a threaded hole at its bottom, and an adjusting rod is threadedly connected to the permanent magnet assembly at the threaded hole.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. In this utility model, when the patient exhales, the external low-pressure air source enters the PEEP valve through the first connector. By changing the input current through the PEEP value, the circuit changes the position of the coil in the valve body within the permanent magnet assembly through the input current to the peep valve, thereby changing the output air pressure through the second connector. This solves the problems of slow response speed and low control accuracy of the peep valve, thus achieving stable, continuous and adjustable output air pressure of the valve body.
[0015] 2. In this utility model, rotating the adjusting rod causes the lower guide sleeve to move, thereby adjusting the position of the lower guide sleeve. The lower guide sleeve pushes the coil through the spring, and the coil pushes the aluminum pad and diaphragm to move through the valve rod. That is, by adjusting the adjusting rod, the initial pressure of the coil is the same when the valve body is not energized. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a pneumatic and electrically controlled peep control valve body according to the present invention.
[0017] Figure 2 This is a top view of a pneumatically and electrically controlled peep control valve body according to the present invention.
[0018] Figure 3 This utility model relates to a pneumatically and electrically controlled PEEP control valve body. Figure 2 A cross-sectional structural diagram of AA.
[0019] Figure 4This is a bottom view of the upper valve body of a pneumatic and electrically controlled peep control valve body according to the present invention.
[0020] Figure 5 This is a schematic diagram of the upper valve body of a pneumatically and electrically controlled PEEP control valve body according to the present invention.
[0021] Figure 6 This utility model relates to a pneumatically and electrically controlled PEEP control valve body. Figure 2 A schematic diagram of the local structure at point A.
[0022] Figure 7 This utility model relates to a pneumatically and electrically controlled PEEP control valve body. Figure 2 A schematic diagram of the local structure at point B.
[0023] The following are the labels in the diagram: 1. Upper valve body; 101. Groove; 102. First air passage; 103. Second air passage; 104. Third air passage; 2. First connector; 3. Second connector; 4. Third connector; 5. Middle valve body; 6. Lower valve body; 7. Permanent magnet assembly; 8. Wire groove; 9. Terminal; 10. Aluminum pad; 11. Diaphragm; 12. Coil; 13. Valve stem; 14. Upper guide sleeve; 15. Adjusting sleeve; 16. Spring; 17. Lower guide sleeve; 18. Adjusting rod. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] As attached Figure 1 To be continued Figure 7 As shown:
[0026] A pneumatically and electrically controlled PEEP control valve body includes an upper valve body 1, a middle valve body 5, and a lower valve body 6. The middle valve body 5 is located between the upper valve body 1 and the lower valve body 6. The upper valve body 1, the middle valve body 5, and the lower valve body 6 are all fixedly connected by screws.
[0027] A first connector 2 is fixedly installed on the outer wall of the upper valve body 1, a third connector 4 is fixedly installed on the outer wall of the upper valve body 1, a second connector 3 is fixedly installed on the outer wall of the upper valve body 1, a groove 101 is formed on the lower surface of the upper valve body 1, a first air passage 102 is formed at the groove 101, a second air passage 103 and a third air passage 104 are formed inside the upper valve body 1, the second air passage 103 is connected to the first air passage 102 through the groove 101, the first air passage 102 is connected to the third connector 4, the second air passage 103 is connected to the third air passage 104, the first connector 2 is connected to the second air passage 103, and the second connector 3 is connected to the third air passage 104.
[0028] An aluminum pad 10 is provided at the groove 101 of the upper valve body 1. A diaphragm 11 is fixedly connected to the lower surface of the aluminum pad 10. A permanent magnet assembly 7 is fixedly installed on the lower surface of the lower valve body 6. A coil 12 is installed inside the permanent magnet assembly 7. A valve stem 13 is sleeved inside the coil 12. A spring 16 is sleeved at the bottom of the valve stem 13.
[0029] As attached Figure 1 To be continued Figure 3 As shown, a wire groove 8 is fixedly installed on the outer wall of the lower valve body 6, and a terminal block 9 is sleeved on the outer wall of the wire groove 8.
[0030] In the above technical solution, terminal 9 is connected to an external power source and is used to supply power to coil 12.
[0031] As attached Figure 6 As shown, an upper guide sleeve 14 is fixedly sleeved in the middle of the valve body 5, and the upper guide sleeve 14 is slidably sleeved with the valve stem 13.
[0032] In the above technical solution, the design of the upper guide sleeve 14 avoids direct contact between the valve stem 13 and the middle valve body 5, thus protecting the middle valve body 5.
[0033] The permanent magnet assembly 7 has a through hole in the middle. An adjusting sleeve 15 is installed at the threaded hole of the permanent magnet assembly 7. A lower guide sleeve 17 is sleeved inside the adjusting sleeve 15. The lower guide sleeve 17 is sleeved with the valve stem 13. The lower guide sleeve 17 is located below the spring 16. A threaded hole is opened at the bottom of the permanent magnet assembly 7. An adjusting rod 18 is threadedly connected at the threaded hole of the permanent magnet assembly 7.
[0034] In the above technical solution, rotating the adjusting rod 18 causes the lower guide sleeve 17 to move, thereby adjusting the position of the lower guide sleeve 17. The lower guide sleeve 17 pushes the coil 12 through the spring 16, and the coil 12 pushes the aluminum pad 10 and diaphragm 11 to move through the valve stem 13. That is, by adjusting the adjusting rod 18, the initial pressure of the coil 12 is the same when the valve body is not energized.
[0035] The specific usage and function of this embodiment are as follows:
[0036] When this utility model is used, when the patient inhales, in order to prevent the patient's alveoli from collapsing, the airway pressure needs to be kept higher than atmospheric pressure. Since the spring 16 pushes the valve stem 13 upward through the coil 12, the valve stem 13 pushes the diaphragm 11 through the aluminum pad 10, so that the diaphragm 11 on the aluminum pad 10 blocks the groove 101. The diaphragm 11 blocks the coil 12, thereby cutting off the exhalation of gas to ensure that the airway pressure is higher than atmospheric pressure. At this time, the upper valve body 1 is connected to the first nozzle 2.
[0037] When the patient exhales, the exhaled air enters the upper valve body 1 through the first nozzle 2. At this time, the current is set according to the positive end-expiratory pressure (PEEP) value set on the ventilator.
[0038] When the PEEP value is 0, terminal 9 is not energized, second connector 3 is closed, and gas can be discharged from the valve body through third connector 4;
[0039] When the PEEP value is not 0, terminal 9 is energized, the second connector 3 is opened, and the magnitude of the energizing current is controlled by the PEEP value. The energized coil 12 moves rapidly under the force of the permanent magnet assembly 7. The coil 12 drives the valve stem 13 to move, and the valve stem 13 drives the diaphragm 11 to move through the aluminum pad 10. Due to the different current in the coil 12, the distance the coil 12 moves is different, so the gas pressure output through the second connector 3 is also different. This solves the problem of slow response speed and low control accuracy of the PEEP valve, thereby realizing stable and continuously adjustable valve body output gas pressure.
[0040] It is worth mentioning that rotating the adjusting rod 18 causes the lower guide sleeve 17 to move, thereby adjusting the position of the lower guide sleeve 17. The lower guide sleeve 17 pushes the coil 12 through the spring 16, and the coil 12 pushes the aluminum pad 10 and diaphragm 11 through the valve stem 13. That is, by adjusting the adjusting rod 18, the initial pressure of the coil 12 is the same when the valve body is not energized, thereby achieving stable and continuously adjustable output air pressure of the valve body.
[0041] Please refer to the above structure and process. Figure 1-7 .
[0042] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A pneumatically and electrically controlled peep control valve body, comprising an upper valve body (1), a middle valve body (5), and a lower valve body (6), characterized in that, The middle valve body (5) is located between the upper valve body (1) and the lower valve body (6), and the upper valve body (1), the middle valve body (5) and the lower valve body (6) are all fixedly connected by screws; The upper valve body (1) is fixedly installed with a first connector (2), a third connector (4), and a second connector (3). The lower surface of the upper valve body (1) is provided with a groove (101). The upper valve body (1) is provided with a first air passage (102) located in the groove (101). The upper valve body (1) is provided with a second air passage (103) and a third air passage (104) inside the upper valve body (1). The second air passage (103) is connected to the first air passage (102) through the groove (101). The first air passage (102) is connected to the third connector (4). The second air passage (103) is connected to the third air passage (104). The first connector (2) is connected to the second air passage (103). The second connector (3) is connected to the third air passage (104). An aluminum pad (10) is provided at the groove (101) of the upper valve body (1). A diaphragm (11) is fixedly connected to the lower surface of the aluminum pad (10). A permanent magnet assembly (7) is fixedly installed on the lower surface of the lower valve body (6). A coil (12) is installed inside the permanent magnet assembly (7). A valve stem (13) is sleeved inside the coil (12). A spring (16) is sleeved at the bottom of the valve stem (13).
2. The pneumatically and electrically controlled PEEP control valve body according to claim 1, characterized in that, The lower valve body (6) has a wire groove (8) fixedly installed on its outer wall, and a terminal block (9) is sleeved on the outer wall of the wire groove (8).
3. The pneumatically and electrically controlled peep control valve body according to claim 1, characterized in that, The middle valve body (5) is fixedly sleeved with an upper guide sleeve (14), which is slidably sleeved with the valve stem (13).
4. The pneumatically and electrically controlled peep control valve body according to claim 1, characterized in that, The permanent magnet assembly (7) has a through hole in the middle. An adjusting sleeve (15) is installed at the threaded hole of the permanent magnet assembly (7). A lower guide sleeve (17) is sleeved inside the adjusting sleeve (15). The lower guide sleeve (17) is sleeved with the valve stem (13). The lower guide sleeve (17) is located below the spring (16).
5. A pneumatically and electrically controlled peep control valve body according to claim 4, characterized in that, The permanent magnet assembly (7) has a threaded hole at its bottom, and an adjusting rod (18) is threadedly connected to the threaded hole.