CN110926724A - Insulating glove air tightness detector and using method thereof - Google Patents

Abstract

The invention provides an air tightness detector for insulating gloves and a using method thereof, the air tightness detector comprises an inflating device, a box body and a plurality of standard gloves, a gas pipeline and a control module are arranged in the box body, the control module comprises an MCU and a timer, a preset differential pressure value, a plurality of inflating times t1, a pressure stabilizing time t2, a first pressure retaining time t3 and a second pressure retaining time t4 are arranged in the MCU, an air inlet, a standard glove interface, a to-be-detected glove interface, an exhaust port, a model setting key and a display device are arranged in the MCU, the gas pipeline comprises a first pipeline, a second pipeline and a third pipeline, a first pressure retaining valve is arranged in the first pipeline, a second pressure retaining valve is arranged in the second pipeline, a differential pressure sensor is arranged in the third pipeline, external threads are arranged on the standard glove interface, internal threads matched with the external threads are arranged on the plurality of standard gloves, an annular positioning groove is arranged on the to-be-detected glove interface, to test different types of insulating gloves.

Description

Insulating glove air tightness detector and using method thereof

Technical Field

The invention relates to the technical field of detection devices, in particular to an insulating glove air tightness detector and a using method thereof.

Background

When daily distribution network live working that carries out, insulating gloves are as the protective equipment of the electrified body of direct contact, even broken hourglass that exists is little can't observe to the naked eye, also can produce considerable leakage current when contacting the electrified body, seriously endangers operation personnel's personal safety. Therefore, the air tightness of the insulating gloves is very important to check, and whether the insulating gloves leak air or not is usually checked, one method is to adopt a simple air leakage point detection method, namely, two hands grasp the two sides of the upper opening of the insulating gloves, the gloves are curled towards the direction of fingers, when the gloves are curled to a certain degree, the pressure of the internal air is increased due to the volume reduction, the fingers are partially bulged, and at the moment, the detection is carried out by sensing whether air leakage exists or not through ears or lips; or a simple manual air pump is adopted, effective shutoff is ensured by using a diaphragm stop type reversing valve, air is continuously pumped into the insulating gloves, the volume of the insulating gloves is expanded, the fingers are bulged, and the existence of air leakage is sensed by hearing or touch; the two methods are used for distinguishing whether air leakage exists or not by detecting the auditory sense, the tactile sense and other methods of the personnel, are easily influenced by the environment, rely on the subjective feeling and experience of the operator to obtain a conclusion and judge, have no objectivity, are easy to cause misjudgment, and require the gloves to expand to 1.2-1.5 times of the original state during the inflation test. Meanwhile, the manual detection mode is lack of rigor, the amount of air pressed in is not measured and controlled, only one insulating glove can be detected each time, the efficiency is low, data is not quantized, the insulating glove is easy to over-expand, and the service life of the insulating glove is shortened. In addition, the insulating gloves are repeatedly rolled up and detected manually, the insulating gloves are rolled up and folded for many times, the service life of the insulating gloves is also prolonged to a certain extent, and the input cost of live working equipment is increased.

Disclosure of Invention

The invention aims to provide an insulating glove air tightness detector based on a differential pressure method.

In order to achieve the purpose, the invention adopts the following technical scheme: an airtight detector for insulating gloves comprises an inflation device, a box body and a plurality of standard gloves with different volumes, wherein the standard gloves are arranged corresponding to insulating gloves to be detected with different models one by one, a gas pipeline and a control module are arranged in the box body, the control module comprises an MCU and a timer, a preset differential pressure value, an inflation time t1, a pressure stabilizing time t2, a first pressure retaining time t3 and a second pressure retaining time t4 are arranged in the MCU, the t1 is provided with a plurality of insulating gloves to be detected, the insulating gloves to be detected are arranged corresponding to the insulating gloves to be detected with different models one by one, the box body is provided with a gas inlet, a standard glove interface, a glove interface to be detected, a gas outlet, a model setting key for selecting t1 and a display device for displaying an airtight detection result of the gloves to be detected, the gas pipeline comprises a first pipeline for communicating the gas inlet with the standard glove interface, a second pipeline for communicating the, air inlet and aerating device intercommunication and air inlet department are equipped with the admission valve, be equipped with first retaining valve in the first pipeline, be equipped with the second retaining valve in the second pipeline, be equipped with differential pressure sensor in the third pipeline, the admission valve, first retaining valve, the second retaining valve, differential pressure sensor, model set key and display device all are connected with the control module electricity, be equipped with the external screw thread on the standard gloves interface, all be equipped with on a plurality of standard gloves with screw-thread fit's internal thread, be equipped with annular positioning groove on the gloves interface that awaits measuring, the cover is equipped with the elastic sleeve that the insulating gloves cover that will await measuring is tight on the gloves interface that await.

Furthermore, the standard gloves are metal gloves, and the volume of the standard gloves is 1.5 times of the volume of the corresponding insulating gloves to be tested before inflation.

Furthermore, the number of the to-be-detected glove interfaces is two, and the display device is also provided with two to-be-detected glove interfaces which are arranged in one-to-one correspondence.

Furthermore, the second pipeline also is provided with two, and two second pipelines communicate with two gloves interfaces that await measuring respectively, and two second pipelines are located the both sides of first pipeline respectively and set up along first pipeline symmetry.

Further, be provided with the selection button that steerable second pressure retaining valve opened on the box, selection button is provided with two and corresponds two second pressure retaining valve settings respectively.

Furthermore, the first pipeline and the second pipeline are communicated with the air inlet through a main pipeline, and the air outlet is located on the main pipeline.

Further, be equipped with air pressure adjusting device on the main line, air pressure adjusting device includes air pressure regulating valve and air pressure detection table, and air pressure detection table and air pressure regulating valve all are connected with the MCU electricity, are equipped with in the MCU and predetermine the atmospheric pressure value.

Further, the display device comprises two indicator lights with different colors; alternatively, the display device comprises two differently shaped indicator lights.

Further, the gas pipeline adopts a BNG pressure-resistant explosion-proof pipe.

The invention also discloses a using method of the insulating glove air tightness detector, and the insulating glove air tightness detector adopts the insulating glove air tightness detector in any one of the technical schemes, and comprises the following steps:

s100, an installation step: sleeving an insulating glove to be tested on a glove interface to be tested, matching and fastening the insulating glove to be tested with an annular positioning groove through an elastic sleeve, selecting a standard glove with a corresponding volume according to the type of the insulating glove to be tested, and fixing the standard glove on the standard glove interface through threads;

s200, an inflation step: turning on a power switch, selecting corresponding inflation time t1 through a model setting key according to the model of the insulating glove to be tested, pressing a start key, opening an air inlet valve, starting inflation of the inflation device and starting timing of a timer;

s300, voltage stabilization: after time t1, the intake valve is closed and the timer is restarted;

s400, pressure maintaining detection: after the time t2, the first pressure retaining valve and the second pressure retaining valve are closed, and the timer is restarted; after time t3, the differential pressure sensor works to measure a first differential pressure value, and the timer is restarted; after time t4, the differential pressure sensor works to measure a second differential pressure value;

s500, a display step: the MCU calculates a difference value between the first differential pressure value and the second differential pressure value, and if the difference value is larger than a preset differential pressure value, the display device displays that the air tightness of the insulating glove to be tested is unqualified; if the difference value is smaller than the preset differential pressure value, the display device displays that the air tightness of the insulating glove to be detected is qualified;

s600, exhausting: and the first pressure retaining valve, the second pressure retaining valve and the exhaust port are opened to exhaust.

After the technical scheme is adopted, the invention has the following advantages:

1. the standard gloves with different volumes are arranged, the plurality of standard gloves and the insulating gloves with different models are arranged in a one-to-one correspondence mode, the standard gloves can be used for detecting the insulating gloves with different models, external threads are arranged on a standard glove interface, internal threads matched with the external threads are arranged on the different standard gloves, the standard gloves with different volumes can be arranged on the standard glove interface through the matching of the internal threads and the external threads, and the air tightness between the standard gloves and the standard glove interface is ensured; the to-be-tested glove interface is provided with an annular positioning groove, insulating gloves to be tested of different types can be sleeved on the to-be-tested glove interface, the to-be-tested insulating gloves are tightly sleeved on the to-be-tested glove interface through elastic belts, and the air tightness between the to-be-tested insulating gloves and the to-be-tested glove interface is guaranteed; through setting up a plurality of inflation time t1, the different inflation time can be selected to the insulating gloves that await measuring of different models for the volume that the insulating gloves that await measuring aerify back equals the volume that corresponds standard gloves, and then makes the insulating gloves of different models can be detected to same insulating gloves gas tightness detector. Setting pressure stabilizing time, first pressure maintaining time and second pressure maintaining time, after inflation for t1 time, closing an air inlet valve to enter a pressure stabilizing state, stabilizing pressure for t2 time, closing a first pressure maintaining valve and a second pressure maintaining valve to enter a pressure maintaining state, maintaining pressure for t3 time, detecting the work of a differential pressure sensor to obtain a first differential pressure value, maintaining pressure for t4 time, detecting the work of the differential pressure sensor to obtain a second differential pressure value, and displaying that the air tightness of the insulating gloves to be tested is unqualified by a display device when the difference value between the first differential pressure value and the second differential pressure value is larger than a preset differential pressure value; when the difference value of the first differential pressure value and the second differential pressure value is smaller than the preset differential pressure value, the display device displays that the air tightness of the insulating gloves to be detected is qualified, the pressure stabilizing time is set, the detection accuracy and reliability of the air tightness detector for the insulating gloves are improved, and the detection accuracy and reliability of the air tightness detector for the insulating gloves are further guaranteed by comparing the difference value of the differential pressure values after the first pressure maintaining time and the second pressure maintaining time.

2. The standard gloves are metal gloves, air tightness of the standard gloves is guaranteed, the volume of the standard gloves is 1.5 times of the volume of the corresponding insulating gloves to be tested before inflation, differential pressure testing is conducted after the insulating gloves to be tested are inflated and expanded to 1.5 times of the original state, air pressure in the insulating gloves to be tested is guaranteed to be consistent with air pressure in the standard gloves, and detection accuracy of the insulating glove air tightness detector is improved.

3. Through setting up two gloves interfaces that await measuring, can detect two insulating gloves simultaneously, promote detection efficiency, through setting up two display device, can see two insulating gloves's that await measuring testing result respectively, can not produce mutual interference.

4. Through setting up two second pipelines, two second pipelines communicate with two gloves interfaces that await measuring respectively for two insulating gloves that await measuring detect mutually independent, can not exert an influence each other, two second pipelines are located the both sides of first pipeline respectively and set up along first pipeline symmetry simultaneously, reduce as far as possible and offset the pressure variation that pressure retaining valve and pipeline revealed and arouse, make two insulating gloves that await measuring be in under the same detection condition as far as possible.

5. The invention also discloses a using method of the insulating glove air tightness detector, because the insulating glove air tightness detector can detect insulating gloves of different types, the detection efficiency of the air tightness of the insulating gloves is improved, the detection cost is reduced, the detection is carried out through a differential pressure detection method, the detection value distortion caused by air pressure meter errors or external environments in the existing detection work is overcome, the detection precision and the resolution ratio are improved, the external environment influence and the air pressure change are greatly reduced through a voltage stabilizing step and a pressure maintaining detection step, the detection accuracy is further improved, the air tightness result of the insulating gloves to be detected is intuitively reflected through a display step, and the problem of low resolution ratio in the existing detection work is avoided.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural view of the airtightness detector for the insulating gloves of the present invention.

FIG. 2 is a schematic diagram of the insulating glove airtightness detector of the present invention in cooperation with an insulating glove to be tested and a standard glove.

FIG. 3 is a schematic structural diagram of a gas pipeline in the airtightness detector for the insulating gloves.

The direction of the arrows in the figure is the direction of airflow during inflation.

The names of the components marked in the figures are as follows:

100. a box body; 110. an air inlet; 111. an intake valve; 120. a standard glove interface; 121. an external thread; 130. a glove interface to be tested; 131. an annular positioning groove; 132. an elastic sleeve; 140. an exhaust port; 141. an exhaust valve; 150. a model setting key; 160. an indicator light; 170. a power switch; 180. a start key; 190. a selection button; 200. a standard glove; 300. insulating gloves to be tested; 400. a first conduit; 410. a first pressure retaining valve; 500. a second conduit; 510. a second pressure retaining valve; 600. a third pipeline; 610. a differential pressure sensor; 700. an inflator; 800. a main conduit; 900. an air pressure adjusting device; 910. an air pressure regulating valve; 920. an air pressure detecting meter.

Detailed Description

The invention is further described with reference to the following figures and specific examples. It is to be understood that the following terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like are used merely to indicate an orientation or positional relationship relative to one another as illustrated in the drawings, merely to facilitate describing and simplifying the invention, and are not intended to indicate or imply that the device/component so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore are not to be considered limiting of the invention.

As shown in fig. 1 to 3, the present invention provides an airtight detector for insulating gloves, comprising an inflator 700, a box 100 and a plurality of standard gloves 200 with different volumes, wherein the standard gloves are metal gloves to ensure the airtightness of the standard gloves, the plurality of standard gloves 200 are arranged corresponding to the insulating gloves 300 to be detected with different models one by one, in this embodiment, the insulating gloves to be tested comprise small-size insulating gloves, medium-size insulating gloves and large-size insulating gloves, the standard gloves comprise small-size standard gloves corresponding to the small-size insulating gloves, medium-size standard gloves corresponding to the medium-size insulating gloves and large-size standard gloves corresponding to the large-size insulating gloves, the volume of each small-size standard glove is 1.5 times of the volume of each small-size insulating glove before inflation, the volume of each medium-size standard glove is 1.5 times of the volume of each medium-size insulating glove before inflation, and the volume of each large-size standard glove is 1.5 times of the volume of each large-size insulating glove before inflation. Be equipped with gas pipeline and control module in the box 100, control module includes MCU and time-recorder, be equipped with in the MCU and predetermine the differential pressure value, air time t1, hold-down time t2, first hold-down time t3 and second hold-down time t4, t1 is equipped with a plurality ofly and sets up with the insulating gloves one-to-one that awaits measuring of different models, the insulating gloves that await measuring of different models can select different air time, in this embodiment, t1 is provided with 3, be corresponding to small size insulating gloves respectively, medium size insulating gloves and large size insulating gloves, t1 aerifys the time setting that reaches 1.5 times volume according to the insulating gloves that await measuring, make the volume of the insulating gloves that await measuring after aerifing equal the volume of standard gloves. The box body 100 is provided with a power switch 170, a start key 180, an air inlet 110, a standard glove interface 120, a glove interface 130 to be tested, an air outlet 140, a model setting key 150 for selecting t1 and a display device for displaying the air tightness detection result of the glove to be tested, the start key 180 is connected with the MCU through a lead, the model setting key 150 comprises three setting keys respectively corresponding to a small insulating glove, a medium insulating glove and a large insulating glove, and fonts 'small', 'medium', 'large' are respectively printed on the three setting keys, so that an operator can conveniently set the three setting keys. The gas pipeline comprises a first pipeline 400 communicating the gas inlet 110 with the standard glove interface 120, a second pipeline 500 communicating the gas inlet 110 with the glove interface 130 to be tested, and a third pipeline 600 communicating the first pipeline 400 with the second pipeline 500, wherein the gas inlet 110 is communicated with the inflator 700, an air inlet valve 111 is arranged at the gas inlet 110, a first pressure retaining valve 410 is arranged in the first pipeline 400, a second pressure retaining valve 510 is arranged in the second pipeline 500, a differential pressure sensor 610 is arranged in the third pipeline 600, the air inlet valve 111, the first pressure retaining valve 410 and the second pressure retaining valve 510 are all diaphragm type electromagnetic valves and are all connected with the MCU through conducting wires, the control module can control the opening and closing of the standard gloves through the MCU, the standard glove interface 120 is provided with external threads 121, a plurality of standard gloves 200 are all provided with internal threads matched with the external threads 121, standard gloves with different volumes can be installed on the standard glove interface through matching of the, the air tightness between the standard glove and the standard glove interface is ensured; be equipped with annular positioning groove 131 on the gloves interface 130 that awaits measuring, the insulating gloves that await measuring of different models all can overlap on the gloves interface that awaits measuring to tightly cover the insulating gloves that await measuring on the gloves interface that awaits measuring through elastic webbing 132, the elastic webbing can not cause the damage to the insulating gloves that await measuring, guarantees the gas tightness between the insulating gloves that await measuring and the gloves interface that awaits measuring simultaneously, makes same insulating gloves gas tightness detector can detect the insulating gloves of different models.

After the air inlet valve 111 is opened and the inflating device 700 starts to work, the timer starts to time, the time t1 is passed, the air inlet valve 111 is closed, the pressure stabilizing state is entered, the timer restarts to time, after the time t2 is passed, the first pressure retaining valve 410 and the second pressure retaining valve 510 are closed, the pressure retaining state is entered, the timer restarts to time, after the time t3 is passed, the differential pressure sensor 610 works to measure a first differential pressure value, the timer restarts to time, after the time t4 is passed, the differential pressure sensor works 610 to measure a second differential pressure value, the MCU calculates the difference value between the first differential pressure value and the second differential pressure value, and if the difference value is greater than the preset differential pressure value, the display device displays that the air tightness of the insulating gloves to; if the difference value is smaller than the preset differential pressure value, the display device displays that the air tightness of the insulating gloves to be detected is qualified, the first pressure retaining valve 410, the second pressure retaining valve 510 and the air outlet 140 are opened to exhaust air, the power switch 170 is closed, and the detection is completed. Through setting up steady voltage time, improve the accuracy nature and the reliability that insulating gloves gas tightness detector detected, through the difference of the differential pressure value behind first dwell time and the second dwell time of comparison, further guaranteed the accuracy nature and the reliability that insulating gloves gas tightness detector detected.

In this embodiment, two glove interfaces 130 to be detected are provided, so that two insulating gloves can be detected simultaneously, the detection efficiency is improved, and the detection cost is reduced; the display devices are also provided with two interfaces 130 corresponding to the two to-be-detected gloves one by one, and the detection results of the two to-be-detected insulating gloves can be seen respectively through the two display devices, so that mutual interference can be avoided.

The second pipeline 500 is also provided with two, two second pipelines 500 communicate with two gloves interfaces 130 that await measuring respectively for two insulating gloves that await measuring detect mutually independently, can not exert an influence each other, two second pipelines 500 are located the both sides of first pipeline 400 respectively and set up along first pipeline 400 symmetry simultaneously, reduce as far as possible and offset the pressure variation that both sides pressure retaining valve and pipeline revealed and arouse, make two insulating gloves that await measuring be in under the same detection condition as far as possible.

The punishment of two gloves interfaces 130 that await measuring is equipped with selection button 190 respectively, the opening of second pressure retaining valve 510 in the steerable second pipeline 500 that corresponds of selection button 190, if two gloves interfaces 130 that await measuring detect two insulating gloves simultaneously, then press two selection buttons 190, if only one of them gloves interface that await measuring is used for detecting insulating gloves, then press the selection button that work gloves interface that await measuring corresponds, the second pressure retaining valve in the second pipeline of the gloves interface intercommunication that await measuring that does not press selection button is in the closed condition always, thereby realize both can detect two insulating gloves simultaneously, can only detect an insulating glove again.

The first pipeline 400 and the second pipeline 500 are communicated with the air inlet 110 through the main pipeline 800, the air outlet 140 is located on the main pipeline 800, the air outlet 140 is provided with an air outlet valve 141, the air outlet valve 141 is connected with the MCU through a conducting wire, and after detection is completed, the air outlet valve is opened to achieve air outlet.

Be equipped with atmospheric pressure adjusting device 900 on main pipeline 800, atmospheric pressure adjusting device 900 includes atmospheric pressure governing valve 910 and air pressure detection table 920, atmospheric pressure detection table 920 and air pressure governing valve 910 all are connected with the MCU electricity, be equipped with preset pressure value in the MCU, if accomplish and aerify the back, the internal pressure value that atmospheric pressure detection table 920 measured is greater than preset pressure value, then make internal pressure value equal to preset pressure value through atmospheric pressure governing valve 910, ensure the accuracy that insulating gloves gas tightness detector detected.

The display device comprises indicator lamps 160 with two different colors, specifically a red indicator lamp for indicating that the air tightness of the insulating gloves to be tested is unqualified and a green indicator lamp for indicating that the air tightness of the insulating gloves to be tested is qualified.

It will be appreciated that the display device may also comprise two indicator lights of different shapes.

Specifically, the inflator 700 is an electric inflator, and the gas pipeline adopts a BNG pressure-resistant explosion-proof pipe, so that the use safety of the detector is ensured.

The invention also discloses a using method of the insulating glove air tightness detector, and the insulating glove air tightness detector in any technical scheme specifically comprises the following steps:

s100, an installation step: sleeving an insulating glove to be tested on a glove interface to be tested, matching and fastening the insulating glove to be tested with an annular positioning groove through an elastic sleeve, selecting a standard glove with a corresponding volume according to the type of the insulating glove to be tested, and fixing the standard glove on the standard glove interface through threads;

s200, an inflation step: turning on a power switch, selecting corresponding inflation time t1 through a model setting key according to the model of the insulating glove to be tested, pressing a start key, opening an air inlet valve, starting inflation of the inflation device and starting timing of a timer;

s300, voltage stabilization: after time t1, the intake valve is closed and the timer is restarted;

s400, pressure maintaining detection: after the time t2, the first pressure retaining valve and the second pressure retaining valve are closed, and the timer is restarted; after time t3, the differential pressure sensor works to measure a first differential pressure value, and the timer is restarted; after time t4, the differential pressure sensor works to measure a second differential pressure value;

s500, a display step: the MCU calculates a difference value between the first differential pressure value and the second differential pressure value, and if the difference value is larger than a preset differential pressure value, the display device displays that the air tightness of the insulating glove to be tested is unqualified; if the difference value is smaller than the preset differential pressure value, the display device displays that the air tightness of the insulating glove to be detected is qualified;

s600, exhausting: and the first pressure retaining valve, the second pressure retaining valve and the exhaust port are opened to exhaust.

This insulating gloves of different models of insulating gloves gas tightness detector detectable, detection efficiency is improved, the detection cost has been reduced simultaneously, detect through the differential pressure detection method, overcome the detected value distortion that barometer error or external environment lead to among the current testing work, detection precision and resolution ratio have been improved, and through steady voltage step and pressurize detection procedure, external environment influence and atmospheric pressure change have been reduced greatly, and then the degree of accuracy that detects has been improved, through showing the step, the gas tightness result of the insulating gloves that await measuring is reacted directly perceivedly, the problem that the resolution ratio is low among the current testing work has been avoided.

And an S210 and a pressure regulating step are also arranged between the air inflation step and the pressure stabilizing step: the air pressure detection meter detects the air pressure in the main pipeline, and if the measured value is not equal to the preset air pressure value, the air pressure regulating valve regulates the air pressure in the main pipeline, so that the air pressure in the main pipeline reaches the preset value.

Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.

Claims (10)

1. An airtight detector for insulating gloves comprises an inflation device, a box body and a plurality of standard gloves with different volumes, wherein the standard gloves are arranged corresponding to insulating gloves to be detected in different models one by one, and the airtight detector is characterized in that a gas pipeline and a control module are arranged in the box body, the control module comprises an MCU and a timer, a preset differential pressure value, an inflation time t1, a pressure stabilizing time t2, a first pressure maintaining time t3 and a second pressure maintaining time t4 are arranged in the MCU, the t1 is provided with a plurality of insulating gloves to be detected in different models one by one, the box body is provided with a gas inlet, a standard glove interface, a glove interface to be detected, a gas outlet, a model setting key for selecting t1 and a display device for displaying the detection result of the airtight gloves to be detected, the gas pipeline comprises a first pipeline for communicating the gas inlet and the standard glove interface, a second pipeline for communicating the gas inlet and the glove interface to be detected, and a third pipeline, air inlet and aerating device intercommunication and air inlet department are equipped with the admission valve, be equipped with first retaining valve in the first pipeline, be equipped with the second retaining valve in the second pipeline, be equipped with differential pressure sensor in the third pipeline, the admission valve, first retaining valve, the second retaining valve, differential pressure sensor, model set key and display device all are connected with the control module electricity, be equipped with the external screw thread on the standard gloves interface, all be equipped with on a plurality of standard gloves with screw-thread fit's internal thread, be equipped with annular positioning groove on the gloves interface that awaits measuring, the cover is equipped with the elastic sleeve that the insulating gloves cover that will await measuring is tight on the gloves interface that await.

2. The instrument of claim 1, wherein the standard glove is a metal glove, and the volume of the standard glove is 1.5 times of the volume of the corresponding insulating glove to be tested before inflation.

3. The airtightness detector for the insulating gloves according to claim 1, wherein there are two interfaces for the gloves to be tested, and there are two display devices corresponding to the two interfaces for the gloves to be tested.

4. The instrument for detecting the airtightness of the insulating gloves according to claim 3, wherein there are also two second conduits, the two second conduits are respectively communicated with the two interfaces of the gloves to be tested, and the two second conduits are respectively located at two sides of the first conduit and symmetrically arranged along the first conduit.

5. The instrument for detecting the airtightness of the insulating gloves according to claim 4, wherein the box body is provided with a selection button capable of controlling the second pressure retaining valves to be opened, and the selection button is provided with two selection buttons which respectively correspond to the two second pressure retaining valves.

6. The instrument of claim 1, wherein the first and second conduits are both in communication with the inlet port via a manifold, and the exhaust port is located on the manifold.

7. The instrument for detecting the airtightness of the insulating gloves according to claim 6, wherein the main duct is provided with an air pressure adjusting device, the air pressure adjusting device comprises an air pressure adjusting valve and an air pressure detecting gauge, the air pressure detecting gauge and the air pressure adjusting valve are both electrically connected to the MCU, and a preset air pressure value is provided in the MCU.

8. The instrument of claim 1, wherein the display device comprises two indicator lights of different colors; alternatively, the display device comprises two differently shaped indicator lights.

9. The instrument of claim 1, wherein the gas conduit is a BNG explosion-proof pressure-proof tube.

10. The using method of the insulating glove air tightness detector is characterized in that the insulating glove air tightness detector is the insulating glove air tightness detector disclosed by any one of claims 1-9, and comprises the following steps of:

s100, an installation step: sleeving an insulating glove to be tested on a glove interface to be tested, matching and fastening the insulating glove to be tested with an annular positioning groove through an elastic sleeve, selecting a standard glove with a corresponding volume according to the type of the insulating glove to be tested, and fixing the standard glove on the standard glove interface through threads;

s200, an inflation step: turning on a power switch, selecting corresponding inflation time t1 through a model setting key according to the model of the insulating glove to be tested, pressing a start key, opening an air inlet valve, starting inflation of the inflation device and starting timing of a timer;

s300, voltage stabilization: after time t1, the intake valve is closed and the timer is restarted;

s400, pressure maintaining detection: after the time t2, the first pressure retaining valve and the second pressure retaining valve are closed, and the timer is restarted; after time t3, the differential pressure sensor works to measure a first differential pressure value, and the timer is restarted; after time t4, the differential pressure sensor works to measure a second differential pressure value;

s500, a display step: the MCU calculates a difference value between the first differential pressure value and the second differential pressure value, and if the difference value is larger than a preset differential pressure value, the display device displays that the air tightness of the insulating glove to be tested is unqualified; if the difference value is smaller than the preset differential pressure value, the display device displays that the air tightness of the insulating glove to be detected is qualified;

s600, exhausting: and the first pressure retaining valve, the second pressure retaining valve and the exhaust port are opened to exhaust.

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