Device and method for detecting air tightness of protective clothing

Abstract

The invention discloses an air tightness detection device and detection method for protective clothing, and relates to the technical field of air tightness detection.The air tightness detection device comprises a detection fixing mechanism and a material mixing box installed at the top of the detection fixing mechanism, a protection mechanism is arranged on the outer side of the detection fixing mechanism, and a collection barrel is arranged on the back of the protection mechanism; the detection fixing mechanism comprises a rotating support, one side of the rotating support is fixedly provided with a rotating motor, the output end of the rotating motor is fixedly connected with a rotating worm, one side of the rotating worm is connected with a rotating worm gear in a meshed mode, and the center of the top of the rotating worm gear is fixedly provided with an opening and closing support. The opening and closing motor is started to drive the opening and closing two-way threaded rod to rotate, the two opening and closing threaded sleeves rotate relatively, the positions of the two opening and closing threaded sleeves can be adjusted to adapt to protective clothing trouser legs of different sizes, and colored gas or liquid can be pumped into the collecting box to be collected through the connecting guide pipes at the bottoms of the opening and closing threaded sleeves under the action of the draw-off pump.

Description

Technical Field

[0001] The present invention relates to the technical field of air tightness detection, and in particular to an air tightness detection device and a detection method for protective clothing. Background Art

[0002] Types of protective clothing include fire protection clothing, industrial protective clothing, medical protective clothing, military protective clothing and protective clothing for special groups. Protective clothing is mainly used in fire protection, military industry, shipbuilding, petroleum, chemical industry, painting, cleaning and disinfection, laboratories and other industries and departments. Good air tightness of protective clothing is the most basic and important indicator of its protection. For manufacturers, air tightness testing of protective clothing is a necessary task, and for consumers, they need to always understand the use status of protective clothing to ensure their safety and peace of mind.

[0003] Announcement No. CN214893907U discloses an air tightness detection device for protective clothing. A total of five inflatable sealing mechanisms are arranged at the top, waist and bottom of the mounting frame, which respectively seal and inflate the cuffs, trouser legs and neck of the protective clothing, so as to fully seal the protective clothing and ensure the sealing of various openings such as cuffs when detecting air tightness, thereby improving the detection accuracy. The inflatable sealing mechanism includes a sealing block, a through stepped hole is arranged inside the sealing block, a sliding rod is arranged at a section with a smaller diameter of the stepped hole, and a sliding rod is arranged at one end to There is one less inflatable sealing ring. The interior of the slide bar is provided with a first airflow channel and a second airflow channel. The first airflow channel is butted with the inflatable sealing ring. The second airflow channel runs through the slide bar. The other end of the slide bar is connected to the air pump. The cuffs, trouser legs and other openings of the protective clothing are inserted into the inflatable sealing ring of the slide bar and inflated and sealed. The inflatable sealing method not only has good sealing performance, but also will not cause damage to the protective clothing. In addition, the inflatable sealing and the inflatable detection can be performed at the same time, which greatly improves the detection efficiency and detection accuracy. However, the above patent still has the following problems in actual use:

[0004] Although the air tightness detection device for protective clothing can perform air tightness detection on protective clothing, colored gas is pumped into the interior of the protective clothing by means of an air pump, and the connection of the protective clothing cannot be sealed. When the protective clothing is tested, gas will overflow from the connection between the protective clothing and the air pump, thereby affecting the accuracy of the air tightness detection of the protective clothing.

[0005] Therefore, an air tightness detection device and a detection method for protective clothing are proposed to solve the above-mentioned problems. Summary of the invention

[0006] The object of the present invention is to provide an air tightness detection device and method for protective clothing, so as to solve the problem proposed in the above-mentioned background technology that colored gas is pumped into the interior of the protective clothing by means of an air pump, the connection of the protective clothing cannot be sealed, and when the protective clothing is tested, the gas will overflow from the connection between the protective clothing and the air pump, thereby affecting the accuracy of the air tightness detection of the protective clothing.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an air tightness detection device and detection method for protective clothing, comprising a detection fixing mechanism, and a mixing box installed on the top of the detection fixing mechanism;

[0008] A protective mechanism is arranged on the outer side of the detection and fixing mechanism, and a collecting bucket is arranged on the back of the protective mechanism;

[0009] Also includes:

[0010] The detection and fixing mechanism comprises a rotating support, a rotating motor is fixedly mounted on one side of the rotating support, a rotating worm is fixedly connected to the output end of the rotating motor, and a rotating worm wheel is meshedly connected to one side of the rotating worm;

[0011] Wherein, an opening and closing bracket is fixedly installed at the top center position of the rotating worm wheel, and an opening and closing motor is fixedly installed on one side of the opening and closing bracket;

[0012] Among them, the output end of the opening and closing motor is fixedly connected with an opening and closing bidirectional threaded rod, and the outer side of the opening and closing bidirectional threaded rod is symmetrically threadedly connected with an opening and closing threaded sleeve.

[0013] Preferably, a connecting conduit is symmetrically installed at the bottom of the opening and closing threaded sleeve, an extraction pump is fixedly installed at the end of the connecting conduit, a collecting box is fixedly installed at the bottom of the extraction pump, a first support frame is fixedly installed on the opening and closing threaded sleeve near the top of the connecting conduit, and an electric telescopic rod is fixedly installed at the top center position of the first support frame.

[0014] By adopting the above technical scheme, the rotating motor is used to drive the rotating worm to rotate, and the meshing connection between the rotating worm and the rotating worm wheel is utilized to enable the rotating worm wheel to drive the opening and closing bracket to rotate, so that the protective clothing can be rotated, which is convenient for observing the leakage part. At the same time, the opening and closing motor is started to drive the opening and closing bidirectional threaded rod to rotate, so that the two opening and closing threaded sleeves can rotate relative to each other, and the positions of the two opening and closing threaded sleeves can be adjusted to adapt to protective clothing trouser legs of different sizes. Through the connecting conduit at the bottom of the opening and closing threaded sleeve, the colored gas or liquid can be pumped into the collection box for collection under the action of the extraction pump, and the colored gas or colored liquid can be recycled, thereby achieving the effect of saving resources, and the first valve inside the opening and closing threaded sleeve can achieve the sealing of liquid or gas.

[0015] Preferably, a first valve is symmetrically installed inside the opening and closing threaded sleeve, a valve protrusion is fixedly installed on the inner side of the bottom of the first valve, a second support frame is fixedly installed on the inner side of the top of the first valve, a valve telescopic rod is fixedly installed at the bottom center position of the second support frame, a valve spring is arranged on the outer side of the valve telescopic rod, a valve piston is fixedly installed on the bottom of the valve spring, and the valve piston is fit-connected with the valve protrusion.

[0016] By adopting the above technical solution, under the action of the electric telescopic rod, the electric telescopic rod can drive the valve piston to squeeze the valve telescopic rod and the valve spring. When the valve piston is separated from the valve protrusion, liquid and gas can be recovered.

[0017] Preferably, a lifting bracket is fixedly installed on the top of the rotating worm gear, a lifting motor is fixedly installed on the top of the lifting bracket, a lifting threaded rod is fixedly connected to the output end of the lifting motor, the outer side of the lifting threaded rod is threadedly connected to a lifting threaded sleeve, lifting limit plates are fixedly installed on both sides of the lifting threaded sleeve, and adjustment brackets are fixedly installed on the outer sides of the two lifting limit plates.

[0018] By adopting the above technical solution, the lifting motor is started to drive the lifting threaded rod to rotate, so that the lifting threaded sleeve drives the lifting limit plate and the adjustment bracket to move up and down, and at the same time, the adjusting knob is turned to drive the adjustment threaded rod to rotate, thereby changing the position of the adjustment threaded bracket, which can adapt to protective clothing of different sizes.

[0019] Preferably, an adjusting knob is rotatably connected to the outer side of the adjusting bracket, an adjusting threaded rod is fixedly connected to the end of the adjusting knob, an adjusting threaded bracket is threadedly connected to the outer side of the adjusting threaded rod, a mixing motor is fixedly installed at the top center position of the mixing box, a mixing auger is fixedly connected to the output end of the mixing motor, and mixing brackets are fixedly installed on the top and bottom of the mixing auger.

[0020] By adopting the above technical solution, the mixing motor drives the mixing auger, mixing bracket and mixing spiral blades to rotate, and under the action of the mixing blades, the colored gas and liquid can be fully mixed, thereby improving the uniformity of the colored liquid and gas.

[0021] Preferably, a mixing spiral blade is fixedly installed on the outer side between the two mixing brackets, a mixing paddle blade is fixedly installed between the two mixing brackets, discharge valves are symmetrically installed on both sides of the bottom of the mixing box, an air pump and a water pump are fixedly installed on the outer sides of the two discharge valves, respectively, connecting pipes are fixedly connected to the ends of the air pump and the water pump, and a collecting valve is fixedly installed between the two connecting pipes.

[0022] By adopting the above technical solution, the air tightness of the protective clothing is double-tested by using colored liquid and colored gas, thereby improving the detection effect.

[0023] Preferably, the bottom of the summary valve is rotatably connected to a telescopic spray head, and the outer sides of the opening and closing threaded sleeve, the adjusting threaded bracket and the telescopic spray head are all provided with fixed threaded sleeves, the top of the fixed threaded sleeve is fixedly installed with a mounting ring, the internal threads of the fixed threaded sleeve are connected to a variable threaded bracket, and the variable threaded bracket is respectively fixedly connected to the opening and closing threaded sleeve, the adjusting threaded bracket and the telescopic spray head, a connecting spring is fixedly installed on the inner side of the variable threaded bracket, and a rubber support block is fixedly installed on the end of the connecting spring.

[0024] By adopting the above technical solution, the neck, legs and arms of the protective suit are installed on the outside of the mounting tube, the fixed threaded sleeve is driven to rotate by rotating the mounting ring, and the variable threaded sleeve is threadedly connected to the variable threaded bracket. The variable threaded bracket can be deformed by utilizing the characteristics of the threaded connection between the fixed threaded sleeve and the variable threaded bracket, and the rubber support block can squeeze the protective suit under the action of the connecting spring.

[0025] Preferably, a mounting tube is fixedly installed at the center position of the opening and closing threaded sleeve, the adjusting threaded bracket and the telescopic nozzle, a plurality of locking rubber blocks are fixedly installed on the outer side of the mounting tube, the locking rubber blocks are snap-connected with the rubber support blocks, a plurality of fixed leather rings are provided on the outer side of the mounting ring, and a plurality of sliding conical blocks are fixedly installed on the top of the mounting ring.

[0026] By adopting the above technical solution, the protective clothing can be tightly connected to the mounting tube by utilizing the characteristics of the snap-fit ​​connection between the rubber support block and the snap-fit ​​rubber block, and the fixed leather ring on the outside of the mounting ring is installed to the outside of the mounting tube under the action of the sliding conical block, thereby performing secondary fixation on the protective clothing, further improving the sealing of the mounting part of the protective clothing, and facilitating the sealing detection of the protective clothing.

[0027] Preferably, the protective mechanism includes a protective cover body, support legs are fixedly installed around the bottom of the protective cover body, a sealing door is symmetrically rotatably connected to the front of the protective cover body, dust collecting boxes are symmetrically installed on both sides of the interior of the protective cover body, a dust cover is fixedly installed on the outer side of the dust collecting box, a dust suction pipe is fixedly installed on the side of the dust collecting box away from the dust cover, the collecting bucket is fixedly installed on the back of the protective cover body, the dust suction pipe is symmetrically installed on both sides of the collecting bucket, the internal thread of the collecting bucket is connected with a mounting thread block, a plurality of unlocking glass slides are fixedly installed on the outer side of the mounting thread block, a suction hood is fixedly installed on the outer side of the mounting thread block, a suction fan is fixedly installed on the interior of the suction hood, a protective net is fixedly installed on the outer side of the suction fan, a mounting plate is fixedly installed on the inner side of the mounting thread block, a collecting pipe is fixedly installed on the inner side of the mounting plate, and a filter element is provided on the outer side of the collecting pipe.

[0028] By adopting the above technical scheme, the protective cover body is used to provide a sealed environment for the sealing detection of the protective clothing. At the same time, by starting the suction fan on the back of the protective cover body, the leaked gas can be recovered under the action of the dust collecting box and the dust cover to avoid environmental pollution caused by the leakage of non-ferrous gas. The extracted non-ferrous gas can be filtered through the collection tube and the filter element to avoid the dust and impurities in the non-ferrous gas from damaging the suction fan and affecting the service life of the suction fan. By unlocking the glass slide and driving the installation threaded block, the filter element can be taken out from the inside of the collection barrel to facilitate the cleaning of the filter element.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: the air tightness detection device and detection method of the protective clothing, the opening and closing motor is started to drive the opening and closing bidirectional threaded rod to rotate, so that the two opening and closing threaded sleeves rotate relatively, and the positions of the two opening and closing threaded sleeves can be adjusted to adapt to the protective clothing trouser legs of different sizes. Through the connecting conduit at the bottom of the opening and closing threaded sleeve, the colored gas or liquid can be pumped into the collection box for collection under the action of the extraction pump, and the protective cover body is used to provide a sealed environment for the sealing detection of the protective clothing. At the same time, by starting the suction fan on the back of the protective cover body, the leaked gas can be recovered under the action of the dust box and the dust cover. The specific contents are as follows:

[0030] 1. By setting up the detection and fixing mechanism, not only can the rotating motor be used to drive the rotating worm to rotate, but also the characteristics of the meshing connection between the rotating worm and the rotating worm wheel can be used to drive the rotating worm wheel to drive the opening and closing bracket to rotate, so as to realize the rotation of the protective clothing, and facilitate the observation of the leakage part. At the same time, the opening and closing motor is started to drive the opening and closing bidirectional threaded rod to rotate, so that the two opening and closing threaded sleeves rotate relatively, and the positions of the two opening and closing threaded sleeves can be adjusted to adapt to the trouser legs of protective clothing of different sizes. Through the connecting conduit at the bottom of the opening and closing threaded sleeve, the colored gas or liquid can be pumped into the collection box for collection under the action of the extraction pump, and the colored gas or colored liquid can be recycled, so as to achieve the effect of saving resources. The first valve inside the opening and closing threaded sleeve can realize the sealing of liquid or gas. At the same time, under the action of the electric telescopic rod, the electric telescopic rod can drive the valve piston to squeeze the valve telescopic rod and the valve spring. When the valve piston is separated from the valve protrusion, the liquid and gas can be recovered. The lifting motor is started to drive the lifting threaded rod to rotate, so that the lifting threaded sleeve drives the lifting limit plate and the adjustment bracket to move up and down, and at the same time, the adjusting knob is rotated to drive the adjusting threaded rod to rotate, thereby changing the adjusting thread The position of the bracket can adapt to protective clothing of different sizes. The mixing motor drives the mixing auger, mixing bracket and mixing spiral blade to rotate. Under the action of the mixing blade, the colored gas and liquid can be fully mixed, thereby improving the uniformity of the colored liquid and gas, facilitating the air tightness detection of the protective clothing. The air tightness of the protective clothing is double-detected by colored liquid and colored gas, thereby improving the detection effect. The neck, legs and arms of the protective clothing are installed on the outside of the installation tube, and the fixed thread sleeve is driven to rotate by rotating the installation ring. The fixed thread sleeve and the variable thread The characteristic of the threaded connection of the bracket can cause the variable threaded bracket to deform, and under the action of the connecting spring, the rubber support block squeezes the protective clothing. At the same time, the characteristics of the snap connection between the rubber support block and the snap-fit ​​rubber block can be used to achieve a tight connection between the protective clothing and the mounting tube. The fixed leather ring on the outside of the mounting ring is installed to the outside of the mounting tube under the action of the sliding conical block, thereby performing a secondary fixation on the protective clothing, further improving the sealing of the protective clothing installation part, and facilitating the sealing test of the protective clothing. The rubber support block and the snap-fit ​​rubber block can be used to achieve clamping and sealing of protective clothing of different sizes.

[0031] 2. By setting up the protection mechanism, not only can the protective cover body provide a sealed environment for the sealing detection of the protective clothing, but also by starting the suction fan on the back of the protective cover body, the leaked gas can be recovered under the action of the dust collecting box and the dust cover to avoid the leakage of non-ferrous gas and cause environmental pollution. The extracted non-ferrous gas can be filtered through the collection tube and the filter element to avoid the dust and impurities in the non-ferrous gas from damaging the suction fan and affecting the service life of the suction fan. By unlocking the glass slide to drive the installation threaded block, the filter element can be taken out from the inside of the collection barrel to facilitate the cleaning of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the three-dimensional structure of the detection and fixing mechanism in the present invention;

[0034] Figure 3 It is a schematic diagram of the three-dimensional structure of the cross section of the rotating worm gear and the opening and closing bracket in the present invention;

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the cross section of the first valve in the present invention;

[0036] Figure 5 It is a schematic diagram of the three-dimensional structure of the cross section of the adjustable bracket in the present invention;

[0037] Figure 6 It is a schematic diagram of the three-dimensional structure of the mixing box cross section in the present invention;

[0038] Figure 7 It is a schematic diagram of the three-dimensional structure of the mixing spiral blade and the mixing paddle blade in the present invention;

[0039] Figure 8 It is a schematic diagram of the three-dimensional structure of the cross section of the fixed thread sleeve and the variable thread bracket in the present invention;

[0040] Fig. 9 It is a schematic diagram of the three-dimensional structure of the protection mechanism in the present invention;

[0041] Fig.10 It is a schematic diagram of the three-dimensional structure of the dust collecting box and the dust cover in the present invention;

[0042] Fig.11 It is a schematic diagram of the three-dimensional structure of the collection barrel cross section in the present invention.

[0043] In the figure: 1. detection fixing mechanism; 101. rotating support; 102. rotating motor; 103. rotating worm; 104. rotating worm wheel; 105. opening and closing bracket; 106. opening and closing motor; 107. opening and closing bidirectional threaded rod; 108. opening and closing threaded sleeve; 109. connecting conduit; 110. extraction pump; 111. collection box; 112. first support frame; 113. electric telescopic rod; 114. first valve; 115. valve protrusion; 116, second support frame; 117, valve telescopic rod; 118, valve spring; 119, valve piston; 120, lifting bracket; 121, lifting motor; 122, lifting threaded rod; 123, lifting threaded sleeve; 124, lifting limit plate; 125, adjustment bracket; 126, adjustment knob; 127, adjustment threaded rod; 128, adjustment threaded bracket; 129, mixing box; 130, mixing motor; 131, Mixing auger; 132, mixing bracket; 133, mixing spiral blade; 134, mixing paddle; 135, discharge valve; 136, air pump; 137, water pump; 138, connecting pipe; 139, collection valve; 140, telescopic nozzle; 141, fixed thread sleeve; 142, mounting ring; 143, variable thread bracket; 144, connecting spring; 145, rubber support block; 146, mounting pipe; 147, clamping rubber block; 1 48. Fixed leather ring; 149. Sliding conical block; 2. Protection mechanism; 201. Protection cover body; 202. Support legs; 203. Sealing door; 204. Dust box; 205. Dust cover; 206. Dust suction pipe; 207. Collection bucket; 208. Install threaded block; 209. Unlocking glass slide; 210. Suction hood; 211. Suction fan; 212. Protection net; 213. Installation plate; 214. Collection pipe; 215. Filter element. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1-Figure 11The present invention provides a technical solution: an air tightness detection device and a detection method for protective clothing, comprising a detection fixing mechanism 1, and a mixing box 129 installed on the top of the detection fixing mechanism 1, a protective mechanism 2 is arranged on the outside of the detection fixing mechanism 1, and a collecting bucket 207 is arranged on the back of the protective mechanism 2, the detection fixing mechanism 1 comprises a rotating support 101, a rotating motor 102 is fixedly installed on one side of the rotating support 101, a rotating worm 103 is fixedly connected to the output end of the rotating motor 102, and a rotating worm wheel 104 is meshedly connected to one side of the rotating worm 103, wherein an opening and closing bracket 105 is fixedly installed at the top center position of the rotating worm wheel 104, and an opening and closing motor 106 is fixedly installed on one side of the opening and closing bracket 105, wherein, The output end of the opening and closing motor 106 is fixedly connected to an opening and closing bidirectional threaded rod 107, the outer side of the opening and closing bidirectional threaded rod 107 is symmetrically threadedly connected to an opening and closing threaded sleeve 108, a connecting conduit 109 is symmetrically installed at the bottom of the opening and closing threaded sleeve 108, an extraction pump 110 is fixedly installed at the end of the connecting conduit 109, a collecting box 111 is fixedly installed at the bottom of the extraction pump 110, a first support frame 112 is fixedly installed on the top of the opening and closing threaded sleeve 108 near the connecting conduit 109, an electric telescopic rod 113 is fixedly installed at the top center of the first support frame 112, a first valve 114 is symmetrically installed inside the opening and closing threaded sleeve 108, a valve protrusion 115 is fixedly installed on the inner side of the bottom of the first valve 114, and a valve protrusion 115 is fixedly installed on the inner side of the bottom of the first valve 114. A second support frame 116 is fixedly installed on the inner side of the top, a valve telescopic rod 117 is fixedly installed at the bottom center position of the second support frame 116, a valve spring 118 is arranged on the outer side of the valve telescopic rod 117, a valve piston 119 is fixedly installed on the bottom of the valve spring 118, the valve piston 119 is closely connected with the valve protrusion 115, a lifting bracket 120 is fixedly installed on the top of the rotating worm gear 104, a lifting motor 121 is fixedly installed on the top of the lifting bracket 120, a lifting threaded rod 122 is fixedly connected to the output end of the lifting motor 121, a lifting threaded sleeve 123 is threadedly connected to the outer side of the lifting threaded rod 122, lifting limit plates 124 are fixedly installed on both sides of the lifting threaded sleeve 123, and the two lifting limit plates 124 are fixedly installed. 4 are fixedly installed with adjustment brackets 125, the outer side of the adjustment bracket 125 is rotatably connected with an adjustment knob 126, the end of the adjustment knob 126 is fixedly connected with an adjustment threaded rod 127, the outer side of the adjustment threaded rod 127 is threadedly connected with an adjustment threaded bracket 128, a mixing motor 130 is fixedly installed at the top center of the mixing box 129, the output end of the mixing motor 130 is fixedly connected with a mixing auger 131, the top and bottom of the mixing auger 131 are fixedly installed with mixing brackets 132, the outer side between the two mixing brackets 132 is fixedly installed with a mixing spiral blade 133, and the mixing paddle blade 134 is fixedly installed between the two mixing brackets 132. Discharging valves 135 are symmetrically installed on both sides of the bottom of the mixing box 129.An air pump 136 and a water pump 137 are fixedly installed on the outside of the two discharge valves 135, and a connecting pipe 138 is fixedly connected to the ends of the air pump 136 and the water pump 137. A collection valve 139 is fixedly installed between the two connecting pipes 138. The bottom of the collection valve 139 is rotatably connected to a telescopic nozzle 140. A fixed threaded sleeve 141 is arranged on the outside of the opening and closing threaded sleeve 108, the adjusting threaded bracket 128 and the telescopic nozzle 140. A mounting ring 142 is fixedly installed on the top of the fixed threaded sleeve 141. The internal thread of the fixed threaded sleeve 141 is connected to a variable threaded bracket 143, and the variable threaded bracket 143 is respectively connected to the opening and closing threaded sleeve 108, the adjusting threaded bracket 128 and the telescopic nozzle 140 are fixedly connected, a connecting spring 144 is fixedly installed on the inner side of the variable threaded bracket 143, a rubber support block 145 is fixedly installed on the end of the connecting spring 144, a mounting tube 146 is fixedly installed at the center of the opening and closing threaded sleeve 108, the adjusting threaded bracket 128 and the telescopic nozzle 140, a plurality of engaging rubber blocks 147 are fixedly installed on the outer side of the mounting tube 146, and the engaging rubber blocks 147 are engaged with the rubber support block 145, a plurality of fixed leather rings 148 are sleeved on the outer side of the mounting ring 142, and a plurality of sliding conical blocks 149 are fixedly installed on the top of the mounting ring 142,

[0046] The protection mechanism 2 includes a protection cover body 201, support legs 202 are fixedly installed around the bottom of the protection cover body 201, a sealing door 203 is symmetrically rotatably connected to the front of the protection cover body 201, dust boxes 204 are symmetrically installed on both sides of the inside of the protection cover body 201, a dust cover 205 is fixedly installed on the outside of the dust box 204, a dust suction pipe 206 is fixedly installed on the side of the dust box 204 away from the dust cover 205, a collection barrel 207 is fixedly installed on the back of the protection cover body 201, and the dust suction pipe 206 is symmetrically installed on both sides of the collection barrel 207, the collection barrel 207 is internally threadedly connected with a mounting thread block 208, a plurality of unlocking glass slides 209 are fixedly installed on the outside of the mounting thread block 208, a suction hood 210 is fixedly installed on the outside of the mounting thread block 208, a suction fan 211 is fixedly installed inside the suction hood 210, and a protection Net 212, an installation disk 213 is fixedly installed on the inner side of the installation threaded block 208, a collecting pipe 214 is fixedly installed inside the installation disk 213, and a filter element 215 is arranged on the outer side of the collecting pipe 214. The protective cover body 201 is used to provide a sealed environment for the sealing detection of the protective clothing. At the same time, by starting the suction fan 211 on the back of the protective cover body 201, under the action of the dust collecting box 204 and the dust cover 205, the leaked gas can be recovered to avoid the leakage of colored gas and cause environmental pollution. The extracted colored gas can be filtered through the collecting tube 214 and the filter element 215 to avoid the dust and impurities in the colored gas from damaging the suction fan 211 and affecting the service life of the suction fan 211. By unlocking the glass slide 209 to drive the installation threaded block 208, the filter element 215 can be taken out from the inside of the collecting barrel 207 to facilitate the cleaning of the filter element 215.

[0047] Working principle: Before using the air tightness detection device and detection method of this protective clothing, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Fig.11As shown, first, the rotating motor 102 is used to drive the rotating worm 103 to rotate, and the meshing connection between the rotating worm 103 and the rotating worm wheel 104 is used to enable the rotating worm wheel 104 to drive the opening and closing bracket 105 to rotate, so that the protective clothing can be rotated, which is convenient for observing the leakage position. At the same time, the opening and closing motor 106 is started to drive the opening and closing bidirectional threaded rod 107 to rotate, so that the two opening and closing threaded sleeves 108 can rotate relative to each other, and the positions of the two opening and closing threaded sleeves 108 can be adjusted to adapt to protective clothing trouser legs of different sizes. Through the connecting conduit 109 at the bottom of the opening and closing threaded sleeve 108, the colored gas or liquid can be pumped into the collection box 111 for collection under the action of the extraction pump 110, and the colored gas or colored liquid can be recycled. The liquid or gas can be recycled and utilized, thereby achieving the effect of saving resources. The first valve 114 inside the threaded sleeve 108 can be opened and closed to seal the liquid or gas. At the same time, under the action of the electric telescopic rod 113, the electric telescopic rod 113 can drive the valve piston 119 to squeeze the valve telescopic rod 117 and the valve spring 118. When the valve piston 119 is separated from the valve protrusion 115, the liquid and gas can be recycled. The lifting motor 121 is started to drive the lifting threaded rod 122 to rotate, so that the lifting threaded sleeve 123 drives the lifting limit plate 124 and the adjusting bracket 125 to move up and down. At the same time, the adjusting knob 126 is turned to drive the adjusting threaded rod 127 to rotate, thereby changing the position of the adjusting threaded bracket 128, which can adapt to protective clothing of different sizes.

[0048] Secondly, the mixing auger 131, the mixing bracket 132 and the mixing spiral blade 133 are driven to rotate by the mixing motor 130. Under the action of the mixing blade 134, the colored gas and the liquid can be fully mixed, thereby improving the uniformity of the colored liquid and the gas, facilitating the air tightness detection of the protective clothing. The air tightness of the protective clothing is double-detected by the colored liquid and the colored gas, thereby improving the detection effect. By installing the neck, legs and arms of the protective clothing to the outside of the mounting tube 146, the fixed threaded sleeve 141 is driven to rotate by rotating the mounting ring 142, and the fixed threaded sleeve 141 is threadedly connected to the variable threaded bracket 143. The variable threaded bracket 143 can be deformed, and under the action of the connecting spring 144, the rubber support block 145 squeezes the protective clothing. At the same time, the characteristics of the snap connection between the rubber support block 145 and the snap-fit ​​rubber block 147 can be used to achieve a tight connection between the protective clothing and the mounting tube 146. The fixed leather ring 148 on the outside of the mounting ring 142 is installed to the outside of the mounting tube 146 under the action of the sliding conical block 149, thereby performing a secondary fixation on the protective clothing, further improving the sealing of the protective clothing installation part, and facilitating the sealing detection of the protective clothing. The rubber support block 145 and the snap-fit ​​rubber block 147 can be used to achieve clamping and sealing of protective clothing of different sizes.

[0049] Finally, the protective cover body 201 is used to provide a sealed environment for the sealing detection of the protective clothing. At the same time, by starting the suction fan 211 on the back of the protective cover body 201, the leaked gas can be recovered under the action of the dust collecting box 204 and the dust cover 205 to avoid the leakage of colored gas and cause environmental pollution. The extracted colored gas can be filtered through the collection tube 214 and the filter element 215 to avoid the dust and impurities in the colored gas from damaging the suction fan 211 and affecting the service life of the suction fan 211. By unlocking the glass slide 209 and driving the installation threaded block 208, the filter element 215 can be taken out from the inside of the collection barrel 207 to facilitate the cleaning of the filter element 215.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective clothing air tightness detection device, comprising a detection fixing mechanism (1), and a mixing box (129) mounted on the top of the detection fixing mechanism (1); A protective mechanism (2) is arranged on the outside of the detection and fixing mechanism (1), and a collection bucket (207) is arranged on the back of the protective mechanism (2); It is characterized in that Also includes: The detection fixing mechanism (1) comprises a rotating support (101), a rotating motor (102) is fixedly mounted on one side of the rotating support (101), a rotating worm (103) is fixedly connected to the output end of the rotating motor (102), and a rotating worm wheel (104) is meshedly connected to one side of the rotating worm (103); Wherein, an opening and closing bracket (105) is fixedly installed at the top center position of the rotating worm wheel (104), and an opening and closing motor (106) is fixedly installed on one side of the opening and closing bracket (105); The output end of the opening and closing motor (106) is fixedly connected to an opening and closing bidirectional threaded rod (107), and the outer side of the opening and closing bidirectional threaded rod (107) is symmetrically threadedly connected to an opening and closing threaded sleeve (108).

2. The air tightness detection device for protective clothing according to claim 1, characterized in that: A connecting conduit (109) is symmetrically mounted at the bottom of the opening and closing threaded sleeve (108); an extraction pump (110) is fixedly mounted at the end of the connecting conduit (109); a collecting box (111) is fixedly mounted at the bottom of the extraction pump (110); a first support frame (112) is fixedly mounted near the top of the connecting conduit (109) of the opening and closing threaded sleeve (108); and an electric telescopic rod (113) is fixedly mounted at the center of the top of the first support frame (112).

3. The air tightness detection device for protective clothing according to claim 2, characterized in that: A first valve (114) is symmetrically mounted inside the opening and closing threaded sleeve (108); a valve protrusion (115) is fixedly mounted on the inner side of the bottom of the first valve (114); a second support frame (116) is fixedly mounted on the inner side of the top of the first valve (114); a valve telescopic rod (117) is fixedly mounted at the center position of the bottom of the second support frame (116); a valve spring (118) is arranged on the outer side of the valve telescopic rod (117); a valve piston (119) is fixedly mounted on the bottom of the valve spring (118); and the valve piston (119) is fit-connected to the valve protrusion (115).

4. The air tightness detection device for protective clothing according to claim 3, characterized in that: A lifting bracket (120) is fixedly mounted on the top of the rotating worm wheel (104); a lifting motor (121) is fixedly mounted on the top of the lifting bracket (120); a lifting threaded rod (122) is fixedly connected to the output end of the lifting motor (121); a lifting threaded sleeve (123) is threadedly connected to the outer side of the lifting threaded rod (122); lifting limit plates (124) are fixedly mounted on both sides of the lifting threaded sleeve (123); and adjustment brackets (125) are fixedly mounted on the outer sides of the two lifting limit plates (124).

5. The air tightness detection device for protective clothing according to claim 4, characterized in that: The outer side of the adjustment bracket (125) is rotatably connected to an adjustment knob (126), the end of the adjustment knob (126) is fixedly connected to an adjustment threaded rod (127), the outer side of the adjustment threaded rod (127) is threadedly connected to an adjustment threaded bracket (128), a mixing motor (130) is fixedly installed at the top center position of the mixing box (129), the output end of the mixing motor (130) is fixedly connected to a mixing auger (131), and mixing brackets (132) are fixedly installed at the top and bottom of the mixing auger (131).

6. The air tightness detection device for protective clothing according to claim 5, characterized in that: A mixing spiral blade (133) is fixedly installed on the outer side between the two mixing brackets (132), a mixing paddle blade (134) is fixedly installed between the two mixing brackets (132), discharge valves (135) are symmetrically installed on both sides of the bottom of the mixing box (129), an air pump (136) and a water pump (137) are fixedly installed on the outer sides of the two discharge valves (135), and connecting pipes (138) are fixedly connected to the ends of the air pump (136) and the water pump (137), and a collection valve (139) is fixedly installed between the two connecting pipes (138).

7. The air tightness detection device for protective clothing according to claim 6, characterized in that: The bottom of the summary valve (139) is rotatably connected to a telescopic spray head (140); the outer sides of the opening and closing threaded sleeve (108), the adjusting threaded bracket (128) and the telescopic spray head (140) are all provided with a fixed threaded sleeve (141); the top of the fixed threaded sleeve (141) is fixedly installed with a mounting ring (142); the internal thread of the fixed threaded sleeve (141) is connected with a variable threaded bracket (143); the variable threaded bracket (143) is respectively fixedly connected to the opening and closing threaded sleeve (108), the adjusting threaded bracket (128) and the telescopic spray head (140); the inner side of the variable threaded bracket (143) is fixedly installed with a connecting spring (144); the end of the connecting spring (144) is fixedly installed with a rubber support block (145).

8. The air tightness detection device for protective clothing according to claim 7, characterized in that: A mounting tube (146) is fixedly installed at the center of the opening and closing threaded sleeve (108), the adjusting threaded bracket (128) and the telescopic nozzle (140); a plurality of engaging rubber blocks (147) are fixedly installed on the outer side of the mounting tube (146); the engaging rubber blocks (147) are engaged and connected with the rubber support blocks (145); a plurality of fixed leather rings (148) are sleeved on the outer side of the mounting ring (142); and a plurality of sliding conical blocks (149) are fixedly installed on the top of the mounting ring (142).

9. The air tightness detection device for protective clothing according to claim 8, characterized in that: The protection mechanism (2) comprises a protection cover body (201), support legs (202) are fixedly mounted around the bottom of the protection cover body (201), a sealing door (203) is symmetrically rotatably connected to the front of the protection cover body (201), dust collection boxes (204) are symmetrically mounted on both sides of the interior of the protection cover body (201), a dust cover (205) is fixedly mounted on the outside of the dust collection box (204), a dust suction pipe (206) is fixedly mounted on the side of the dust collection box (204) away from the dust cover (205), the collection bucket (207) is fixedly mounted on the back of the protection cover body (201), and the dust suction pipe (206) is symmetrically mounted on both sides of the collection bucket (207). On the side, the internal thread of the collection barrel (207) is connected to a mounting thread block (208), a plurality of unlocking glass slides (209) are fixedly mounted on the outer side of the mounting thread block (208), a suction hood (210) is fixedly mounted on the outer side of the mounting thread block (208), a suction fan (211) is fixedly mounted inside the suction hood (210), a protective net (212) is fixedly mounted on the outer side of the suction fan (211), a mounting plate (213) is fixedly mounted on the inner side of the mounting thread block (208), a collection pipe (214) is fixedly mounted inside the mounting plate (213), and a filter element (215) is arranged on the outer side of the collection pipe (214).

10. A method for detecting the air tightness of protective clothing, using the air tightness detection device of protective clothing as claimed in claim 9, characterized in that: The detection method steps are as follows: Step 1: Using the rotating motor (102) to drive the rotating worm (103) to rotate, and using the meshing connection between the rotating worm (103) and the rotating worm wheel (104), the rotating worm wheel (104) can drive the opening and closing bracket (105) to rotate, so that the protective clothing can be rotated, which is convenient for observing the leakage position. At the same time, the opening and closing motor (106) is started to drive the opening and closing bidirectional threaded rod (107) to rotate, so that the two opening and closing threaded sleeves (108) can rotate relative to each other, and the positions of the two opening and closing threaded sleeves (108) can be adjusted to adapt to the protective clothing trouser legs of different sizes. Through the connecting conduit (109) at the bottom of the opening and closing threaded sleeve (108), the colored gas or liquid can be pumped into the collection box (111) for collection under the action of the extraction pump (110), and the colored gas or colored liquid can be recycled. Thus, the effect of saving resources is achieved. By opening and closing the first valve (114) inside the threaded sleeve (108), the sealing of liquid or gas can be achieved. At the same time, under the action of the electric telescopic rod (113), the electric telescopic rod (113) can drive the valve piston (119) to squeeze the valve telescopic rod (117) and the valve spring (118). When the valve piston (119) is separated from the valve protrusion (115), the recovery of liquid and gas can be achieved. The lifting motor (121) is started to drive the lifting threaded rod (122) to rotate, so that the lifting threaded sleeve (123) drives the lifting limit plate (124) and the adjustment bracket (125) to move up and down. At the same time, the adjustment knob (126) is turned to drive the adjustment threaded rod (127) to rotate, thereby changing the position of the adjustment threaded bracket (128), so as to adapt to protective clothing of different sizes. Step 2: The mixing motor (130) drives the mixing auger (131), the mixing bracket (132) and the mixing spiral blade (133) to rotate. Under the action of the mixing blade (134), the colored gas and the liquid can be fully mixed, thereby improving the uniformity of the colored liquid and the gas, facilitating the air tightness detection of the protective clothing. The air tightness of the protective clothing is double-detected by the colored liquid and the colored gas, thereby improving the detection effect. The neck, legs and arms of the protective clothing are installed on the outside of the installation tube (146), and the fixed threaded sleeve (141) is driven to rotate by rotating the installation ring (142). The fixed threaded sleeve (141) is threadedly connected to the variable threaded bracket (143). The variable thread bracket (143) is deformed, and under the action of the connecting spring (144), the rubber support block (145) squeezes the protective clothing. At the same time, the characteristics of the snap connection between the rubber support block (145) and the snap-fit ​​rubber block (147) are utilized to achieve a tight connection between the protective clothing and the mounting tube (146). The fixed leather ring (148) on the outside of the mounting ring (142) is installed to the outside of the mounting tube (146) under the action of the sliding conical block (149), thereby performing a secondary fixation on the protective clothing, further improving the sealing performance of the protective clothing installation part, and facilitating the sealing performance test of the protective clothing. The rubber support block (145) and the snap-fit ​​rubber block (147) can be used to achieve clamping and sealing of protective clothing of different sizes. Step three: Use the protective cover body (201) to provide a sealed environment for the sealing test of the protective clothing. At the same time, by starting the suction fan (211) on the back of the protective cover body (201), the leaked gas can be recovered under the action of the dust collecting box (204) and the dust cover (205), so as to avoid the leakage of colored gas and cause environmental pollution. The extracted colored gas can be filtered through the collection pipe (214) and the filter element (215), so as to avoid the dust and impurities in the colored gas from damaging the suction fan (211) and affecting the service life of the suction fan (211). By unlocking the glass slide (209) and driving the installation threaded block (208), the filter element (215) can be taken out from the inside of the collection barrel (207), so as to facilitate the cleaning of the filter element (215).

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