Pressure stabilizing negative pressure valve with digital intelligent regulation and control function

Abstract

The utility model discloses a pressure stabilizing negative pressure valve with a digital intelligent regulation and control function, and belongs to the technical field of valves. Comprising an air valve body and a valve cover fixedly arranged on the air valve body, a valve cavity is formed in the air valve body, a pressure regulating valve element assembly is arranged in the valve cavity, the left end of the air valve body fixedly communicates with an air inlet and is connected with a hospital negative pressure pipe network, the right end of the air valve body fixedly communicates with a negative pressure air outlet, and a stable negative pressure environment is provided. According to the negative pressure valve with the digital intelligent regulation and control function, the pressure measuring air chamber is arranged in the negative pressure air valve, the negative pressure sensor is installed, the negative pressure passing through the valve cavity can be monitored in real time, the driving mechanism is controlled by the single-chip microcomputer controller to conduct regulation, and therefore the output negative pressure can be automatically balanced, and the working efficiency is improved. The negative pressure at the outlet end is always maintained at a constant negative pressure value, the requirement for the ideal clinical negative pressure environment is met, installation and use are easy, flexibility is achieved through a control panel, the current negative pressure can be digitally displayed in real time, and applicability is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to digital, adjustable, constant pressure air valve technical field, concretely is a kind of digital intelligent control function's steady voltage negative pressure valve. BACKGROUND

[0002] With the development of medical treatment, in clinical, negative pressure closed drainage technology matures increasingly, and more and more patients who are treated for wound repair choose to apply negative pressure closed drainage to promote wound healing, and in hospital pipe network, negative pressure cannot satisfy the negative pressure value required by wound in real time, stable negative pressure environment can remove necrotic tissue and secretion of wound, reduce infection risk, promote granulation tissue growth and wound healing.Negative pressure valve provides stable output negative pressure environment, and can satisfy the needs of different wound repair in clinic.In wound repair department, negative pressure closed technology is widely used in clinical wound repair, burn patients, diabetic wound patients, and negative pressure aspirator is needed, in order to make the negative pressure value of negative pressure aspirator more stable, constant pressure air valve is installed on negative suction pipeline.Common negative pressure valve mainly adjusts the air pressure size of negative pressure entering air valve by internal spring structure.

[0003] Current negative pressure closed drainage technology is mainly adjusted manually, which cannot satisfy negative pressure environment in real time, and large and small negative pressure environment during negative pressure closed drainage affects wound healing, which may cause secondary infection and other problems.Negative pressure in pipe network is unstable, air pressure valve control pressure is not accurate, and it does not have the function of intelligent adjustment, so it cannot flexibly adjust the size of air pressure according to actual negative suction condition. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of steady voltage negative pressure valve with digital intelligent control function to solve the ideal negative pressure environment that air pressure valve control pressure is not stable, does not have the function of intelligent adjustment, cannot satisfy clinical needs in the background technique.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: A steady voltage negative pressure valve with digital intelligent regulation and control function, including intelligence control box and the box cover of clamping setting at the top of intelligence control box, the inside fixed mounting of intelligence control box has the valve body of gas valve, install valve cover on the valve body of gas, the inside of valve cavity is equipped with pressure regulating valve core assembly, one end of the valve body of gas is fixedly connected with the gas inlet, the other end of the valve body of gas is fixedly connected with the gas outlet, the inside fixed mounting of valve cover is used for the drive mechanism for balancing valve body gas pressure, the top fixed mounting of valve cover has the top seat, the top seat is fixedly installed on the power component, one side fixed mounting of valve cover has singlechip controller, the top cover of valve cover is equipped with the protection cover, the inboard fixed mounting of gas outlet has gas pressure sensor, for real -time monitoring export end's negative pressure value, the front fixed mounting of intelligence control box has the control panel.

[0006] Further preferably, the surface of the control panel is fixedly installed with a digital display screen, an emergency stop button and a negative pressure adjusting button, the touch display, the emergency stop button, the gas pressure sensor and the negative pressure adjusting button are electrically connected with the single-chip microcomputer controller.

[0007] Further preferably, the drive mechanism comprises a servo motor and a pressure regulating screw rod fixedly installed at the output end of the servo motor, a screw rod sliding block is transmissionally connected to the middle part of the pressure regulating screw rod, a spring sheet is fixedly arranged on the outer side of the screw rod sliding block, and the servo motor is electrically connected with the single-chip microcomputer controller.

[0008] Further preferably, the pressure regulating valve core assembly comprises a valve rod and a pressure control valve plug fixedly arranged at the bottom end of the valve rod, a rod head is fixedly arranged at the top end of the valve rod, a sealing ring is fixedly arranged on the outer side of the rod head, an extension cylinder is arranged at the top end of the rod head, the bottom end of the pressure regulating screw rod extends into the inside of the extension cylinder, and the screw rod sliding block is fixedly arranged on the rod head.

[0009] Further preferably, the power component comprises a battery compartment and a backup battery clampedly arranged in the inside of the battery compartment, a battery cover is clampedly arranged at the top end of the battery compartment, and the backup power supply is electrically connected with an external power supply.

[0010] Further preferably, an alarm is fixedly installed at the top end of the protection cover for buzzer alarm prompt when the pipeline at the export end is blocked, and the alarm is electrically connected with the single-chip microcomputer controller.

[0011] Further preferably, anti-skid rubber blocks are fixedly arranged at the four corners of the bottom end of the intelligence control box.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The constant pressure air valve is internally provided with an air pressure pressure sensor, which can monitor the balanced air pressure in the valve cavity in real time in application, and intelligently adjusts the driving mechanism through a single-chip microcomputer controller, so that the air pressure in the valve cavity can be automatically balanced, the negative air pressure is always maintained at a constant value, the structure is compact, the installation and use are convenient, the air pressure is flexibly adjusted, the valve cavity air pressure can be displayed in real time, a backup power supply is internally provided, and the applicability is better. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the constant pressure air valve of the utility model;

[0015] Figure 2 It is a structural schematic view of the air valve body of the utility model;

[0016] Figure 3 It is a front view sectional view of the constant pressure air valve of the utility model;

[0017] Figure 4 It is a front view sectional view of the air valve body of the utility model;

[0018] Figure 5 It is a front view sectional view of the pressure regulating valve core assembly of the utility model.

[0019] In the drawing: 1, air valve body; 2, valve cover; 3, air inlet; 4, air outlet; 5, control panel part; 6, box cover; 7, intelligent control box; 8, digital display screen; 9, protective cover; 10, valve cavity; 11, pressure regulating valve core assembly; 111, valve rod; 112, pressure control valve plug; 113, rod head; 114, sealing ring; 115, extension cylinder; 12, servo motor; 13, single-chip microcomputer controller; 14, pressure regulating screw rod; 15, screw rod sliding block; 16, elastic sheet; 17, air pressure pressure sensor; 18, top seat; 19, battery compartment; 20, backup battery; 21, battery cover; 22, alarm; 23, anti-skid rubber block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0021] Please refer to Figures 1-5The utility model provides a kind of negative pressure valve with digital intelligent control function, including intelligent control box 7 and the box cover 6 being engaged in the top of intelligent control box 7, the inside fixed mounting of intelligent control box 7 has gas valve body 1, valve cover 2 is installed on gas valve body 1, valve cavity 10 is arranged in the inside of gas valve body 1, valve cavity 10 is equipped with pressure regulating valve core assembly 11, one end of gas valve body 1 is fixedly connected with air inlet 3, the other end of gas valve body 1 is fixedly connected with air outlet 4, the inside fixed mounting of valve cover 2 is equipped with the drive mechanism for balancing valve body air pressure, the top of valve cover 2 is fixedly installed with top seat 18, power supply assembly is fixedly installed on top seat 18, one side of valve cover 2 is fixedly installed with single-chip microcomputer controller 13, the top of valve cover 2 is equipped with protective cover 9, air pressure pressure sensor 17 is fixedly installed on the inboard of air outlet 4, for real-time monitoring the negative pressure value of export end, the front of intelligent control box 7 is fixedly installed with control panel part 5, the surface of control panel part 5 is fixedly installed with digital display screen 8, emergency stop button and negative pressure adjusting knob, digital display screen 8, emergency stop button, air pressure pressure sensor 17 and negative pressure adjusting knob are electrically connected with single-chip microcomputer controller 13, the top of protective cover is fixedly installed with buzzer alarm 22, for alarm prompt when the pipeline of export end is blocked, buzzer alarm 22 is electrically connected with single-chip microcomputer controller 13, four corners of the bottom of intelligent control box 7 are fixedly provided with anti-skid rubber pad 23.

[0022] In the embodiment, refer to Figure 1 、 Figure 2 and Figure 3 , further, the drive mechanism includes servo motor 12 and the pressure regulating screw rod 14 fixedly installed at the output end of servo motor 12, the middle part transmission of pressure regulating screw rod 14 is connected with screw rod sliding block 15, the outside of screw rod sliding block 15 is fixedly provided with spring 16, servo motor 12 is electrically connected with single-chip microcomputer controller 13.

[0023] When using, medical staff inputs the size of negative pressure value through negative pressure pressing digital button 7, the input instruction is analyzed by single-chip microcomputer controller 13, and servo motor 12 is controlled to work, servo motor 12 drives pressure regulating screw rod 14 to rotate, and then drives screw rod sliding block 15 to move, screw rod sliding block 15 drives pressure regulating valve core assembly 11 to move, and then adjusts the opening and closing size of valve cavity 10, so as to adjust the size of negative pressure value, in the working process of valve body, air pressure pressure sensor 17 can measure the air pressure size inside in real time, when the air pressure size deviates from the set value, can automatically carry out frequency conversion adjustment, so as to stabilize air pressure, make air pressure maintain in the required negative pressure environment range all the time, provide a constant negative pressure air pressure environment.

[0024] In the embodiment, refer to Figure 2 、 Figure 3 and Figure 4Further, the pressure regulating valve core assembly 11 comprises a valve rod 111 and a pressure control valve plug 112 fixedly arranged at the bottom end of the valve rod 111, the top end of the valve rod 111 is fixedly provided with a rod head 113, the outer side of the rod head 113 is fixedly provided with a sealing ring 114, the top end of the rod head 113 is provided with an extension cylinder 115, the bottom end of the pressure regulating screw rod 14 extends into the inside of the extension cylinder 115, and the screw rod sliding block 15 is fixedly arranged on the rod head 113;

[0025] In use, when the valve rod 111 drives the pressure control valve plug 112 to move upwards, the pressure control valve plug 112 is close to the air inlet channel of the valve cavity 10, so as to adjust the flow of the gas, and when the pressure control valve plug 112 moves downwards, the pressure control valve plug 112 is away from the air inlet channel of the valve cavity 10, the opening degree is increased, so as to increase the flow of the gas.

[0026] In the embodiment, referring to Figure 2 and Figure 3 Further, the power supply assembly comprises a battery compartment 19 and a backup battery 20 clamped in the inside of the battery compartment 19, the top end of the battery compartment 19 is clamped with a battery cover 21, and the backup battery 20 is electrically connected with the external power supply;

[0027] In use, the single-chip microcomputer controller 13 and the servo motor 12 are electrically connected with the backup battery 20, and after the external power supply is cut off, the air pressure balance valve can still work normally, and the applicability is improved.

[0028] In use, the medical staff inputs the size of pressure regulation by pressing the digital button 7 under negative pressure, the input instruction is analyzed by the single-chip microcomputer controller 13, the servo motor 12 is controlled to work, the servo motor 12 drives the pressure regulating screw rod 14 to rotate, and then drives the screw rod sliding block 15 to move, the screw rod sliding block 15 drives the valve rod 111 to move through the rod head 113, and then drives the pressure control valve plug 112 to move upwards or downwards, the pressure control valve plug 112 is close to or away from the air inlet channel of the valve cavity 10, so as to adjust the flow of the gas, the opening and closing size of the valve cavity 10 is adjusted, so as to adjust the size of the negative pressure, in the working process of the valve body, the air pressure sensor 17 can measure the size of the internal air pressure in real time, when the size of the air pressure deviates from the set value, the frequency conversion adjustment can be automatically performed, so as to stabilize the air pressure, and a constant air pressure environment is provided, the touch display 8 can display the size of the air pressure in the valve cavity 10 in real time, and the medical staff can view conveniently.

[0029] The basic principle, main features and advantages of the present application are shown and described above. The technical personnel in the industry should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A stable pressure and negative pressure valve with digital intelligent control function, comprising an intelligent control box (7) and a box cover (6) which is clamped on the top end of the intelligent control box (7), characterized in that: The inside of the intelligent control box (7) is fixedly installed with a gas valve body (1), the gas valve body (1) is installed with a valve cover (2), the inside of the gas valve body (1) is provided with a valve cavity (10), the inside of the valve cavity (10) is provided with a pressure regulating valve core assembly (11), one end of the gas valve body (1) is fixedly communicated with an air inlet (3), the other end of the gas valve body (1) is fixedly communicated with an air outlet (4), the inside of the valve cover (2) is fixedly installed with a driving mechanism for balancing the gas pressure of the valve body, the top end of the valve cover (2) is fixedly installed with a top seat (18), the top seat (18) is fixedly installed with a power supply assembly, one side of the valve cover (2) is fixedly installed with a single-chip microcomputer controller (13), the top end of the valve cover (2) is sleeved with a protective cover (9), the inside of the air outlet (4) is fixedly installed with a gas pressure sensor (17) for monitoring the negative pressure value of the outlet end in real time, and the front surface of the intelligent control box (7) is fixedly installed with a control panel portion (5).

2. The stable pressure and negative pressure valve with digital intelligent control function according to claim 1, characterized in that: The surface of the control panel portion (5) is fixedly installed with a digital display screen (8), an emergency stop button and a negative pressure digital adjusting button, and the digital display screen (8), the emergency stop button, the gas pressure sensor (17) and the negative pressure adjusting knob are electrically connected with the single-chip microcomputer controller (13).

3. The stable pressure and negative pressure valve with digital intelligent control function according to claim 1, characterized in that: The driving mechanism comprises a servo motor (12) and a pressure regulating lead screw (14) fixedly installed at the output end of the servo motor (12), the middle part of the pressure regulating lead screw (14) is transmissionally connected with a lead screw sliding block (15), the outer side of the lead screw sliding block (15) is fixedly provided with an elastic sheet (16), and the servo motor (12) is electrically connected with the single-chip microcomputer controller (13).

4. The stable pressure and negative pressure valve with digital intelligent control function according to claim 3, characterized in that: The pressure regulating valve core assembly (11) comprises a valve rod (111) and a pressure control valve plug (112) fixedly arranged at the bottom end of the valve rod (111), the top end of the valve rod (111) is fixedly provided with a rod head (113), the outer side of the rod head (113) is fixedly provided with a sealing ring (114), the top end of the rod head (113) is provided with an extension cylinder (115), the bottom end of the pressure regulating lead screw (14) extends into the inside of the extension cylinder (115), and the lead screw sliding block (15) is fixedly arranged on the rod head (113).

5. The stable pressure and negative pressure valve with digital intelligent control function according to claim 1, characterized in that: The power supply assembly comprises a battery compartment (19) and a backup battery (20) clamped in the inside of the battery compartment (19), the top end of the battery compartment (19) is clamped with a battery cover (21), and the backup battery (20) is electrically connected with an external power supply.

6. The stable pressure and negative pressure valve with digital intelligent control function according to claim 1, characterized in that: The top end of the protective cover (9) is fixedly installed with a buzzer alarm (22) for alarming when the pipeline of the outlet end is blocked, and the buzzer alarm (22) is electrically connected with the single-chip microcomputer controller (13).

7. The stable pressure and negative pressure valve with digital intelligent control function according to claim 1, characterized in that: The four corners of the bottom end of the intelligent control box (7) are fixedly provided with anti-skid rubber blocks (23).

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