CN211346285U

CN211346285U - Medical instrument drying and sterilizing device

Info

Publication number: CN211346285U
Application number: CN201922456918.8U
Authority: CN
Inventors: 郭钦; 顾建; 茅娟莉; 陈剑峰; 林金禄; 陈永生
Original assignee: Fujian Tiancheng Star Medical Technology Co ltd
Current assignee: Fujian Tiancheng Star Medical Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-25
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a medical instrument stoving degassing unit belongs to medical instrument auxiliary assembly technical field, has solved the aspect of the safety in utilization problem, and its technical scheme main points are including the casing, set up in the casing through the electric wire connection external power source the stoving disinfecting equipment, be used for surveying the human pyroelectric infrared sensor who is close to the distance and be used for the switch of control power break-make, still be provided with control module on stoving disinfecting equipment's the power supply line, control module includes comparator, benchmark regulator, "not" gate circuit, "and" gate circuit, triode and normally open relay, through the controller, reliable control has reached the effect that improves operation safety.

Description

Medical instrument drying and sterilizing device

Technical Field

The utility model relates to a medical instrument auxiliary assembly field especially relates to a medical instrument drying and sterilizing device.

Background

Generally, a drying and sterilizing device for medical instruments is a mature product with a relatively mature technology, and the existing device meets the requirements and standards of the medical instruments and can dry and sterilize the medical instruments. Its major structure mainly includes casing, inside drying equipment and disinfecting equipment and controller, and we know, this equipment needs the connection socket, uses under the condition of power supply in the hospital, and when using, the investigation finds, because some special and unexpected condition can't be artificial prediction, has caused the equipment power consumption in-process, and the condition that personnel close too and scald takes place, consequently is worth studying to the safety problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem in the correlation technique to a certain extent at least to the weak point of prior art, provide a medical instrument stoving degassing unit to reach and improve safe handling, reduce dangerous purpose.

In order to solve the technical problem, the technical scheme of the utility model is that: a medical instrument drying and disinfecting device comprises a shell, drying and disinfecting equipment, a pyroelectric infrared sensor and a power switch, wherein the drying and disinfecting equipment is arranged in the shell and is connected with an external power supply through a wire;

the power switch is connected to the input end of an 'AND' gate circuit, the pyroelectric infrared sensor is connected with the in-phase input end of a comparator, the reference regulator is connected with the anti-phase input end of the comparator, the output end of the comparator passes through the input end of the 'NOT' gate circuit, the output end of the 'NOT' gate circuit is connected with the base electrode of a triode, the collector electrode of the triode is connected with one end of a coil of a normally open relay, the other end of the coil is connected with a voltage source, the emitting electrode of the triode is grounded, and the normally open contact.

As a specific aspect of the present invention, it may be preferable that: and an indicating lamp is connected in series to a coil of the normally open relay.

As a specific aspect of the present invention, it may be preferable that: the top of the shell is raised, the pyroelectric infrared sensor is installed at the raised part, and the sensing range is 0-50 cm.

As a specific aspect of the present invention, it may be preferable that: the reference regulator comprises a reference voltage source, a divider resistor and an adjusting resistor, wherein the reference voltage source is grounded after passing through the divider resistor and the adjusting resistor which are connected in series, and an adjusting end of the adjusting resistor provides a reference signal to the comparator.

As a specific aspect of the present invention, it may be preferable that: the power switch is arranged on the side face of the shell.

As a specific aspect of the present invention, it may be preferable that: the control module adopts an independent power supply to supply power.

The utility model discloses technical effect mainly embodies in following aspect: through control module, realize safe operation, at first need closed switch, the human pyroelectric infrared sensor that also is close to this moment, then comparator output high level, convert the low level into through "not" gate circuit this moment, then can't drive the triode through "and" gate circuit and switch on, then the relay does not act, disinfection drying equipment does not switch on, can't acquire external power source, keep away from when the human body this moment, pyroelectric infrared sensor can't not detect the human body, then "with" gate circuit drive triode switches on, the relay closure acts, disinfection drying equipment begins to work. If the power supply switch needs to be closed, only a human body needs to approach the power supply switch, the relay disconnects the power supply loop, and then the power switch is disconnected.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a housing;

FIG. 2 is a circuit diagram of a portion of a control module in an embodiment;

FIG. 3 is a control circuit diagram of another part of the control module in the embodiment.

Reference numerals: 1. a housing; 2. an external power supply; 3. drying and sterilizing equipment; 4. a pyroelectric infrared sensor; 5. a power switch; 6. a control module; 61. a comparator; 62. a reference regulator; 621. a reference voltage source; 622. a voltage dividing resistor; 623. adjusting the resistance; 63. a NOT gate circuit; 64. an AND gate circuit; 65. a triode; 66. a normally open relay; 67. and an indicator light.

Detailed Description

The embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings, and the embodiments described below by referring to the drawings are exemplary and intended to explain the present invention so that the technical solutions of the present invention can be more easily understood and grasped, and cannot be construed as limiting the present invention.

Example (b):

a medical instrument drying and disinfecting device is shown in figures 1 and 3 and comprises a shell 1, drying and disinfecting equipment 3 arranged in the shell 1 and connected with an external power supply 2 through an electric wire, a pyroelectric infrared sensor 4 used for detecting the approach distance of a human body, and a power switch 5 used for controlling the on-off of the power supply. The shell 1 is provided with a cabinet door, and instruments can be placed into the cabinet door for drying and disinfection after the cabinet door is opened. The drying and sterilizing can be carried out by hot air and ultraviolet rays. The shell of the product is convex due to the fact that the pyroelectric infrared sensor 4 is additionally arranged on the upper right corner. Namely: the top of the shell 1 is raised, the pyroelectric infrared sensor 4 is arranged at the raised part, and the sensing range is 0-50 cm. After the human body enters the sensing range of the pyroelectric infrared sensor 4, the sensor outputs a high level signal, otherwise, a low level signal is output. The power supply of the solar energy power supply device is also an independent power supply, and the independent power supply can be a battery or a button battery and the like.

As will be understood from fig. 2 and 3, the power supply line of the drying and sterilizing apparatus 3 is further provided with a control module 6, and the control module 6 includes a comparator 61, a reference regulator 62, a "not" gate 63, an "and" gate 64, a triode 65, and a normally open relay 66.

The switch signal source that switch 5 connects is the high level signal that independent power provided, switch 5 is connected to "and" gate circuit 64's input, pyroelectric infrared sensor 4 connects comparator 61's homophase input, reference regulator 62 connects comparator 61's inverting input, comparator 61's output passes through "not" gate circuit 63's input, "not" gate circuit 63's output connects triode 65's base, normally open relay 66's coil one end is connected to triode 65's collecting electrode, the coil other end is connected the voltage source, triode 65's emitter ground, the power supply circuit of stoving disinfecting equipment 3 is connected to normally open relay 66's normally open contact.

An indicator lamp 67 is connected in series to the coil of the normally open relay 66. The operating state of the indicator lamp 67 is accompanied by a normally open relay 66. Namely: the normally open relay 66 is energized, the indicator lamp 67 is lit, the normally open relay 66 is de-energized, and the indicator lamp 67 is extinguished. The indicator light 67 is positioned on the housing 1 to be viewed by the user. The user can judge the state of the normally open relay 66 based on the state of the indicator lamp 67.

The reference regulator 62 includes a reference voltage source 621, a voltage dividing resistor 622, and an adjusting resistor 623, the reference voltage source 621 is grounded through the voltage dividing resistor 622 and the adjusting resistor 623 connected in series, and an adjusting terminal of the adjusting resistor 623 provides a reference signal to the comparator 61. The voltage of the reference signal is changed by adjusting the resistor 623, so that the size of the sensing range of the pyroelectric infrared sensor 4 can be adjusted. The design has the effect of facilitating debugging and can meet the safe operation of a user.

The power switch 5 is disposed at a side position of the housing 1. In this way, the safety of control can be further improved, and the power source switch 5 is less likely to be erroneously triggered.

The control module 6 is powered by an independent power supply. The reference voltage source 621Vcc in fig. 2 is also provided by an independent power source, and may be 5V, 6V, 12V, etc.

With reference to fig. 1, 2 and 3, a safe operating mode is achieved by the control module 6.

When in work: the human body is close to switch 5 and goes to the closure, and the human body is also close to pyroelectric infrared sensor 4 this moment, then comparator 61 output high level, converts low level into through "not" gate circuit 63 this moment, then can't drive triode 65 through "AND" gate circuit 64 and switch on, then the relay does not move, and pilot lamp 67 is not bright, and disinfection drying equipment does not switch on, can't acquire external power source 2.

At this time, when the human body retreats for a certain distance and the pyroelectric infrared sensor 4 cannot detect the human body, the AND gate circuit 64 drives the triode 65 to be conducted, the relay is closed to act, the indicator lamp 67 is lightened, and the disinfection drying equipment starts to work.

If need close disinfection drying equipment, only need the human body to be close to, then the relay breaks off power supply circuit, then disconnects switch 5, here can see, can let the staff operate under the circumstances of outage, improves the security.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. A medical instrument drying and disinfecting device comprises a shell, drying and disinfecting equipment, a pyroelectric infrared sensor and a power switch, wherein the drying and disinfecting equipment is arranged in the shell and is connected with an external power supply through a wire;

2. The medical instrument drying and sterilizing device of claim 1, wherein: and an indicating lamp is connected in series to a coil of the normally open relay.

3. The medical instrument drying and sterilizing device of claim 2, wherein: the top of the shell is raised, the pyroelectric infrared sensor is installed at the raised part, and the sensing range is 0-50 cm.

4. The medical instrument drying and sterilizing device of claim 1, wherein: the reference regulator comprises a reference voltage source, a divider resistor and an adjusting resistor, wherein the reference voltage source is grounded after passing through the divider resistor and the adjusting resistor which are connected in series, and an adjusting end of the adjusting resistor provides a reference signal to the comparator.

5. The medical instrument drying and sterilizing device of claim 1, wherein: the power switch is arranged on the side face of the shell.

6. The medical instrument drying and sterilizing device of claim 1, wherein: the control module adopts an independent power supply to supply power.