阅读说明：本技术 一种实验用屏蔽型电信号设备接线切换装置 (Shielding type electricity signal equipment wiring switching device for experiments ) 是由 褚玉霞 王彦青 冯异 崔文强 陈藤 李茜 马添乐 邱囿淇 于 2019-08-20 设计创作，主要内容包括：本发明属实验设备技术领域,涉及实验用电信号设备接线切换装置,具体涉及一种实验用屏蔽型电信号设备接线切换装置,其主要由左侧盖板、上部滑动式壳体、下部滑动式壳体和右侧盖板组成；所述侧盖板、上部滑动式壳体、下部滑动式壳体和右侧盖板相互连接固定,形成封闭屏蔽壳体；所述封闭屏蔽壳体设有接地端子、电极正负极性转换开关和输入输出接口。经使,用结果表明,所述装置能屏蔽各种外界电磁干扰信号,且可方便拆装壳体,灵活快捷的改变布线方式；所述输入、输出接口母座均采用插拔式连接,方便切换各个设备的接线；所述电极正负极性转换开关具有正负、断开、负正功能；所述装置中还备用输入、输出接口母座,可进行后续扩展使用,本装置尤其适用于医学实验。(The invention belongs to the technical field of experimental equipment, relates to a wiring switching device of experimental electric signal equipment, and particularly relates to a wiring switching device of experimental shielding type electric signal equipment, which mainly comprises a left side cover plate, an upper sliding type shell, a lower sliding type shell and a right side cover plate; the side cover plate, the upper sliding type shell, the lower sliding type shell and the right side cover plate are fixedly connected with one another to form a closed shielding shell; the closed shielding shell is provided with a grounding terminal, an electrode positive and negative polarity change-over switch and an input/output interface. The use result shows that the device can shield various external electromagnetic interference signals, the shell can be conveniently disassembled and assembled, and the wiring mode can be flexibly and quickly changed; the input interface female seat and the output interface female seat are connected in a plug-in manner, so that the wiring of each device is convenient to switch; the electrode positive and negative polarity change-over switch has positive and negative, disconnection and negative and positive functions; the device is also provided with an input interface female seat and an output interface female seat for later expansion and use, and the device is particularly suitable for medical experiments.)

1. A wiring switching device of shielding type electric signal equipment for experiments is characterized by mainly comprising a left side cover plate (1), an upper sliding type shell (2), a lower sliding type shell (3) and a right side cover plate (4); the side cover plate (1), the upper sliding type shell (2), the lower sliding type shell (3) and the right side cover plate (4) are mutually connected and fixed to form a closed shielding shell; the closed shielding shell is provided with a grounding terminal (10), an electrode positive and negative polarity conversion switch (11) and an input/output interface.

2. The experimental shielded type electrical signal equipment connection switching apparatus as claimed in claim 1, wherein said left side cover plate (1), said upper sliding type housing (2), said lower sliding type housing (3) and said right side cover plate (4) are made of metal material and are connected and fixed to each other to form a closed shielding housing.

3. The apparatus for switching the connection of an experimental shielded electric signal equipment according to claim 1, wherein said upper sliding housing (2) and said lower sliding housing (3) are provided.

4. The experimental shielded electrical signal equipment connection switching apparatus as claimed in claim 1, wherein said left side cover plate (1) and said right side cover plate (4) are fixed to both ends of said closed shielding housing by screws.

5. The experimental shielded electrical signal device connection switching apparatus as defined in claim 1, wherein said input/output interface is a plug-in input/output interface;

the input and output interface comprises a BNC output interface female seat A (5), a BNC output interface female seat B (6), a BNC output interface female seat C (7), a BNC output interface female seat D (8), an input interface female seat a (9), an input interface female seat B (12), an input interface female seat C (13), an input interface female seat D (14), an input interface female seat e (15) and an input interface female seat f (16).

6. The experimental shielded electrical signal equipment wiring switching apparatus of claim 5, wherein said BNC output interface female socket A (5) is connected to a preamplifier input, said BNC output interface female socket B (6) is connected to an oscilloscope Y output, said BNC output interface female socket C (7) is connected to an oscilloscope input, said BNC output interface female socket D (8) is in standby, said input interface female socket a (9) is connected to a recording electrode, said input interface female socket B (12) is connected to an audio playback input, said input interface female socket C (13) is connected to a digital-to-analog converter input, said input interface female socket D (14) is connected to an external storage equipment input, said input interface female socket e (15) is connected to an external video playback equipment output, and said input interface female socket f (16) is in standby.

7. The experimental shielded electrical signal equipment wiring switching device according to claim 6, wherein said input interface female socket a (9) is connected to said electrode polarity reversal switch (11) and outputted through said BNC output interface female socket a (5); the grounding terminal (10) is connected with the ground through a grounding wire; the input interface female socket B (12), the input interface female socket c (13) and the input interface female socket d (14) are connected with the Y output of an oscilloscope through the BNC output interface female socket B (6); the input interface female socket e (15) is connected with the input of an oscilloscope through the BNC output interface female socket C (7); and the input interface female socket f (16) is connected with the BNC output interface female socket D (8).

8. The experimental shielded type electrical signal equipment connection switching apparatus as claimed in claim 1, wherein said electrode polarity changeover switch (11) is an electrode polarity changeover switch having 3 steps of positive and negative, open, negative and positive, etc.

9. The experimental shielded electrical signal equipment connection switching apparatus as defined in claim 1 wherein said apparatus is secured to the operating table or equipment support by a hold-down clamp; or the closed shielding shell is provided with screw holes which are connected by screws.

Technical Field

The invention relates to the technical field of experimental equipment, in particular to a wiring switching device of shielding type electric signal equipment for experiments, which can be used for recording biological electric signals, switching positive and negative electrodes, switching wiring between signal processing and storage equipment and the like; the device is particularly suitable for medical experiments.

Background

The prior art discloses that relevant bioelectric signals are used for reflecting the life activity state of organisms, and have the defects of weak signals, nonlinearity, high internal resistance, multiple interference factors and the like, so that the acquisition and processing of the bioelectric signals, equipment connection and the like have higher requirements. The bioelectric signal is collected by usually adopting an electric signal recording electrode, and when different measured organisms are recorded, the positive and negative polarities of the recording electrode are often required to be changed or switched; in the recording process, equipment such as audio playing and the like is required to express the electric signal; the electric signal processing usually adopts a preamplifier, an oscilloscope, a digital-to-analog converter and other equipment to observe, measure, process and the like the amplified bioelectric signal; the electric signal is stored by usually adopting an external storage device, and the stored historical electric signal can be fed back to an oscilloscope for playback through an external video playing device and the like; the wiring switching among the devices needs to be managed in a unified mode, and meanwhile, the convenience and the rapidness of the wiring switching of the devices are achieved.

Based on the current state of the art, the inventors of the present application propose to provide a shielded electrical signal device wiring switching apparatus for experiments, particularly for medical experiments, which can be used for recording bioelectrical signals, switching positive and negative electrodes, switching wiring between signal processing and storage devices, and the like.

Disclosure of Invention

The invention aims to provide a wiring switching device of shielding type electric signal equipment for experiments based on the current situation of the prior art, which can be used for recording biological electric signals, switching positive and negative electrodes, switching wiring between signal processing and storage equipment and the like; the device adopts the metal shell to shield various external electromagnetic interference signals, can change or switch the positive and negative polarities of the recording electrodes, and is convenient to switch the wiring among different devices; the device is particularly suitable for medical experiments.

The invention discloses a wiring switching device of shielding type electric signal equipment for experiments, which is characterized by mainly comprising a left side cover plate 1, an upper sliding type shell 2, a lower sliding type shell 3 and a right side cover plate 4; the side cover plate 1, the upper sliding type shell 2, the lower sliding type shell 3 and the right side cover plate 4 are fixedly connected with each other to form a closed shielding shell; the closed shielding shell is provided with a grounding terminal 10, an electrode positive and negative polarity change-over switch 11 and an input/output interface;

in the invention, the left side cover plate 1, the upper sliding type shell 2, the lower sliding type shell 3 and the right side cover plate 4 are all made of metal materials and are mutually connected and fixed to form a closed shielding shell;

in the invention, the upper sliding type shell 2 and the lower sliding type shell 3 are connected in a sliding manner, so that the shells can be conveniently disassembled and assembled, and the wiring mode can be flexibly and quickly changed;

in the invention, the left side cover plate 1 and the right side cover plate 4 are both fixed at two ends of the closed shielding shell by screws;

in the invention, the device is provided with a grounding terminal 10 which can discharge various electromagnetic interference signals to the ground;

in the invention, the electrode positive and negative polarity change-over switch 11 is an electrode positive and negative polarity change-over switch with 3 grades of functions of positive and negative, disconnection, negative and positive and the like;

in the invention, the input/output interface is a plug-in input/output interface, so that the convenient and fast wiring switching among different devices is realized;

the input and output interface comprises a BNC output interface female seat A5, a BNC output interface female seat B6, a BNC output interface female seat C7, a BNC output interface female seat D8, an input interface female seat a9, an input interface female seat B12, an input interface female seat C13, an input interface female seat D14, an input interface female seat e15 and an input interface female seat f 16;

the BNC output interface female bay a5 may be configured to connect to a preamplifier input, the BNC output interface female bay B6 may be configured to connect to an oscilloscope Y output, the BNC output interface female bay C7 may be configured to connect to an oscilloscope input, the BNC output interface female bay D8 is standby, the input interface female bay a9 may be configured to connect to a recording electrode, the input interface female bay B12 may be configured to connect to an audio playback input, the input interface female bay C13 may be configured to connect to a digital-to-analog converter input, the input interface female bay D14 may be configured to connect to an external storage device input, the input interface female bay e15 may be configured to connect to an external video playback device output, and the input interface female bay f16 is standby;

the input interface female socket a9 is connected to the electrode positive and negative polarity change-over switch 11 and is output through the BNC output interface female socket A5; the grounding terminal 10 is connected with the ground through a grounding wire; the input interface female socket B12, the input interface female socket c13 and the input interface female socket d14 are all connected with the Y output of an oscilloscope through the BNC output interface female socket B6; the input interface female socket e15 is connected with the input of an oscilloscope through the BNC output interface female socket C7; the input interface female socket f16 is connected with the BNC output interface female socket D8;

in the invention, the device can be fixed on an operation table top or an equipment support by adopting a pressing clamp, and the shell can also be provided with screw holes which are connected by adopting screws.

In the present invention, the internal connection lines and the connection method of the device are connected by using the connection lines and connection method specified in the prior art.

The invention provides a wiring switching device of shielding type electric signal equipment for experiments, which can be used for recording bioelectric signals, switching positive and negative electrodes, switching wiring between signal processing and storage equipment and the like; the device adopts the metal shell to shield various external electromagnetic interference signals, can change or switch the positive and negative polarities of the recording electrodes, and is convenient to switch the wiring among different devices; the device is particularly suitable for medical experiments.

The experimental shielding type electric signal equipment wiring switching device has the following advantages:

(1) the closed cavity of the device is surrounded by the metal shell and can shield various external electromagnetic interference signals;

(2) the upper sliding type shell 2 and the lower sliding type shell 3 are connected in a sliding manner, so that the shells are convenient to disassemble and assemble, and the wiring mode is changed flexibly and quickly;

(3) the input interface female seat and the BNC output interface female seat are connected in a plug-in manner, so that the wiring of an electric signal recording electrode, a preamplifier, an oscilloscope, audio playing, a digital-to-analog converter, storage equipment, external storage, external video playing and other equipment can be switched conveniently;

(4) the electrode positive and negative polarity change-over switch has 3 grades of functions of positive and negative, disconnection, negative and positive and the like, and the grounding terminal discharges various electromagnetic interference signals to the ground;

(5) the device is also provided with 1 input interface and 1 output interface female seat for subsequent expansion and use.

Drawings

Fig. 1 is an appearance schematic diagram of the device of the present invention, wherein, a: a left view, a front view, a right view and a back view;

FIG. 2 is a detailed internal wiring diagram of the device of the present invention;

FIG. 3 is a schematic view of the connection of the sliding housing of the present invention;

fig. 4 is an external view of the lower sliding type housing according to the present invention, wherein a: a left view, a front view, a right view and a back view;

fig. 5 is an external view of the upper sliding type housing according to the present invention, wherein a: a left view, a front view, a right view;

in fig. 1 to 5, 1 is a left side cover plate, 2 is an upper sliding type casing, 3 is a lower sliding type casing, 4 is a right side cover plate, 5 is a BNC output interface female socket a (connected to a preamplifier input), 6 is a BNC output interface female socket B (connected to an oscilloscope Y output), 7 is a BNC output interface female socket C (connected to an oscilloscope input), 8 is a BNC output interface female socket D (standby), 9 is an input interface female socket a (connected to a recording electrode), 10 is a ground terminal, 11 is an electrode positive/negative polarity changeover switch, 12 is an input interface female socket B (connected to an audio playing input), 13 is an input interface female socket C (connected to a digital-to-analog converter input), 14 is an input interface female socket D (connected to an external storage device input), 15 is an input interface female socket e (connected to an external video playing device output), and 16 is an input interface female socket f (standby).

Detailed Description

Example 1

As shown in fig. 1 to 5, the wiring switching device for the shielding type electrical signal equipment for experiments mainly comprises a left side cover plate 1, an upper sliding type shell 2, a lower sliding type shell 3 and a right side cover plate 4; the side cover plate 1, the upper sliding type shell 2, the lower sliding type shell 3 and the right side cover plate 4 are fixedly connected with each other to form a closed shielding shell; the closed shielding shell is provided with a grounding terminal 10, an electrode positive and negative polarity change-over switch 11 and an input/output interface;

the left side cover plate 1, the upper sliding type shell 2, the lower sliding type shell 3 and the right side cover plate 4 are all made of metal materials and are mutually connected and fixed to form a closed shielding shell;

the upper sliding type shell 2 and the lower sliding type shell 3 are connected in a sliding manner, so that the shells can be conveniently disassembled and assembled, and the wiring mode can be flexibly and quickly changed;

the left side cover plate 1 and the right side cover plate 4 are fixed at two ends of the closed shielding shell by screws;

the device is provided with a grounding terminal 10 which can discharge various electromagnetic interference signals to the ground;

the electrode positive and negative polarity change-over switch 11 is an electrode positive and negative polarity change-over switch with 3 grades of functions of positive and negative, disconnection, negative and positive and the like;

the input and output interface is a plug-in input and output interface, so that the convenient and fast wiring switching among different devices is realized;

the input and output interface comprises a BNC output interface female seat A5, a BNC output interface female seat B6, a BNC output interface female seat C7, a BNC output interface female seat D8, an input interface female seat a9, an input interface female seat B12, an input interface female seat C13, an input interface female seat D14, an input interface female seat e15 and an input interface female seat f 16;

the BNC output interface female bay a5 may be configured to connect to a preamplifier input, the BNC output interface female bay B6 may be configured to connect to an oscilloscope Y output, the BNC output interface female bay C7 may be configured to connect to an oscilloscope input, the BNC output interface female bay D8 is standby, the input interface female bay a9 may be configured to connect to a recording electrode, the input interface female bay B12 may be configured to connect to an audio playback input, the input interface female bay C13 may be configured to connect to a digital-to-analog converter input, the input interface female bay D14 may be configured to connect to an external storage device input, the input interface female bay e15 may be configured to connect to an external video playback device output, and the input interface female bay f16 is standby;

the input interface female socket a9 is connected to the electrode positive and negative polarity change-over switch 11 and is output through the BNC output interface female socket A5; the grounding terminal 10 is connected with the ground through a grounding wire; the input interface female socket B12, the input interface female socket c13 and the input interface female socket d14 are all connected with the Y output of an oscilloscope through the BNC output interface female socket B6; the input interface female socket e15 is connected with the input of an oscilloscope through the BNC output interface female socket C7; the input interface female socket f16 is connected with the BNC output interface female socket D8;

the device can be fixed on an operation table top or an equipment support by adopting a pressing clamp, and the shell can be provided with screw holes which are connected by adopting screws.

The results of the above embodiments show that the closed cavity of the device of the present invention is surrounded by the metal casing, which can shield various external electromagnetic interference signals; the shell can be conveniently disassembled and assembled, and the wiring mode can be flexibly and quickly changed; the input interface female seat and the output interface female seat are connected in a plug-in manner, so that the wiring of each device is convenient to switch; the electrode positive and negative polarity change-over switch has 3 grades of functions of positive and negative, disconnection, negative and positive and the like, and the grounding terminal discharges various electromagnetic interference signals to the ground; the device is also provided with an input interface female seat and an output interface female seat for subsequent expansion and use.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.