Filament-wound gas cylinder damage detection device based on acoustic emission characteristics of composite materials

Abstract

The invention discloses a fiber-wound gas cylinder damage detection device based on composite material acoustic emission characteristics, and relates to the technical field of fiber-wound gas cylinder damage detection. The fiber-wound gas cylinder damage detection device based on composite material acoustic emission characteristics comprises a cylinder body, a cover plate is installed on the cylinder body, an oil tank and a cylinder body are installed on the bottom of the cover plate through an adjustment component, a sliding plug is slidably installed in the cylinder body, a transmission rod is installed on the sliding plug, a sliding hole is opened on the cylinder body, the transmission rod passes through the sliding hole, and an impact head is installed on the transmission rod, an acoustic wave receiver is installed on the bottom of the cover plate, and an analysis processor is installed on the cylinder body. By starting a pump and utilizing the instantaneous force of oil on the sliding plug, the transmission rod can drive the impact head to impact the gas cylinder, and the acoustic wave receiver receives the acoustic wave formed by the impact, so that the analysis processor can compare the damage database according to the acoustic wave characteristics, thereby improving the accuracy of gas cylinder damage detection.

Description

Technical Field

[0001] The invention relates to the technical field of damage detection of filament wound gas cylinders, in particular to a damage detection device for filament wound gas cylinders based on the acoustic emission characteristics of composite materials. Background Art

[0002] Fiber-wound gas cylinders, also known as carbon fiber gas cylinders, refer to composite gas cylinders made by winding high-strength fibers such as carbon fiber and glass fiber around the outside of a plastic liner. It is a kind of bottle designed using stress analysis, made of high-quality carbon fiber, imported epoxy resin and other materials, and finely processed through more than a dozen processes such as winding and high-temperature curing. It is a high-strength, lightweight gas container, usually used to store compressed gases such as air, oxygen, nitrogen, etc. Through the composition of fiber materials and resins, this type of gas cylinder usually has the characteristics of good explosion resistance, lightweight, strong carrying capacity, acid and alkali resistance, and high temperature resistance. Carbon fiber-wound composite gas cylinders have a wide range of applications. In the field of aerospace, carbon fiber-wound composite gas cylinders can be used for fuel storage of aircraft and rockets. In the field of transportation, carbon fiber-wound composite gas cylinders can be used in the gas storage system of gas vehicles, which improves the fuel storage efficiency and vehicle range. In addition, carbon fiber-wound composite gas cylinders can also be used in industrial and civilian fields.

[0003] When the existing fiber-wound gas cylinder damage detection device detects the gas cylinder, it usually directly detects the outside of the gas cylinder through the detector, and cannot detect the internal structural damage of the gas cylinder, thereby reducing the detection error of the gas cylinder damage and affecting the detection accuracy of the gas cylinder. Summary of the invention

[0004] The purpose of the present invention is to provide a fiber-wound gas cylinder damage detection device based on the acoustic emission characteristics of composite materials to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the fiber-wound gas cylinder damage detection device based on the acoustic emission characteristics of composite materials includes a cylinder, a detection chamber is provided on the upper part of the cylinder, a storage seat is installed at the bottom of the detection chamber, two fixed blocks are symmetrically installed on the upper part of the cylinder, electric telescopic rods are installed on the two fixed blocks, a connecting plate is installed on the electric telescopic rod, a cover plate is installed on the connecting plate, an oil tank and a cylinder body are installed on the bottom of the cover plate through an adjustment component, a pump is installed on the oil tank, the pump is connected to the oil tank through a first oil pipe, the pump is connected to the cylinder body through a second oil pipe, a sliding plug is slidably installed in the cylinder body, a transmission rod is installed on the sliding plug, and the sliding plug is connected to the cylinder body through a reset spring. A sliding hole is provided on the cylinder body, the transmission rod passes through the sliding hole, and an impact head is installed on the transmission rod, a sound wave receiver is installed at the bottom of the cover plate, and an analysis processor is installed on the cylinder body. When the gas cylinder needs to be tested, the gas cylinder is placed in the storage seat of the detection room, and the electric telescopic rod is started to drive the cover plate to move down to cover and seal the cylinder body. Then, by starting the pump, the oil in the oil tank can be transported into the cylinder body. The instantaneous force of the oil on the sliding plug can be used to compress the reset spring while driving the impact head to impact the gas cylinder through the transmission rod. The sound wave formed by the impact is received by the sound wave receiver, and the analysis processor can compare the damage database according to the characteristics of the sound wave, thereby improving the accuracy of gas cylinder damage detection.

[0006] As a preferred technical solution, the adjustment assembly includes an annular guide rail, a slide seat and a hydraulic lifting rod;

[0007] An annular guide rail is installed at the bottom of the cover plate, a slide seat is slidably installed on the annular guide rail, an oil tank is installed on the slide seat, a hydraulic lifting rod is installed at the bottom of the oil tank, and a cylinder body is installed on the hydraulic lifting rod. By starting the annular guide rail, the slide seat can move in a circular trajectory along the annular guide rail, and by starting the hydraulic lifting rod, the hydraulic lifting rod can drive the cylinder body to perform longitudinal adjustment, so that the impact head can achieve a comprehensive impact on the gas cylinder.

[0008] As a preferred technical solution, the cylinder is provided with a primary detection utilization component and a secondary detection utilization component, and the movement of the cover plate is used to provide operating driving force for the primary detection utilization component and the secondary detection utilization component.

[0009] As a preferred technical solution, the first-level detection component includes a fixing plate, a connecting rod, an extrusion plate, a driving airbag, a support rod, a working cylinder, an air flow channel, an air port, a piston, a first supporting spring, a linkage rod, a through hole, a linkage plate and an air delivery pipe;

[0010] A fixing plate is installed at the lower part of the cylinder body, a connecting rod is installed on the fixing block, an extrusion plate is installed on the connecting rod, the extrusion plate and the fixing plate are connected through a driving airbag, a supporting rod is installed on the upper part of the fixing block, a working cylinder is installed on the supporting rod, an air flow channel is provided in the cylinder wall of the working cylinder, the air flow channel is connected with the inner bottom of the working cylinder through an air port, the upper part of the air flow channel is connected with the driving airbag through an air supply pipe, a piston is slidably installed in the working cylinder, the upper part of the piston is connected with the working cylinder through a first supporting spring, and a linkage rod is installed at the lower part of the piston, a through hole is opened at the bottom of the working cylinder, the linkage rod slides through the through hole, and a linkage plate is installed at the lower part of the linkage rod, when the cover plate seals the cylinder body, the cover plate can drive the extrusion plate to compress the driving airbag through the connecting rod during the movement, so that the airflow in the driving airbag can enter the working cylinder through the air supply pipe and the airflow channel, so that the piston can compress the first supporting spring under the action of the airflow to move upward, so that the piston can drive the linkage plate to move upward synchronously through the linkage rod.

[0011] As a preferred technical solution, an air supply pipe is installed on the air flow channel, a control valve is installed on the air supply pipe, a touch switch is installed at the bottom of the cover plate, the touch switch is electrically connected to the control valve, and the air supply pipe and the air supply pipe are both one-way pipes. When the cover plate completely seals the cylinder body, the control valve is opened by squeezing the touch switch, so that the air flow in the working cylinder can be discharged, so that the piston can drive the linkage plate to move downward synchronously under the elastic force of the first support spring.

[0012] As a preferred technical solution, the first-level detection component also includes a rotating groove, a rotating ring, a perforation, a sliding rod, a fixing ring, a second supporting spring, a force plate, an airflow detector, a connecting rod, a transmission shaft and a spiral track;

[0013] The cover plate is provided with a rotating groove, a rotating ring is rotatably provided in the rotating groove, a plurality of through holes are opened on the rotating ring, and a sliding rod is slidably installed in the plurality of through holes, a fixing ring is installed on the upper end of the sliding rod, the fixing ring and the rotating ring are connected by a second supporting spring, a force plate is installed on the fixing ring, an airflow detector is installed on the lower end of the sliding rod, a connecting rod is installed on the fixing ring, a transmission shaft is rotatably installed on the connecting rod, a spiral track is provided on the side of the working cylinder, and the transmission shaft is slidably inserted in the spiral track, and when the linkage plate moves downward, the linkage plate can press the force plate downward during the downward movement, so that the force plate drives the fixing ring to press The second support spring is compressed and moved downward synchronously, and then the airflow detector can be driven to move downward synchronously in the detection room through the sliding rod, which is beneficial to improving the longitudinal air tightness detection of the gas cylinder during the collision by the airflow detector. At the same time, the fixed ring can be moved downward synchronously through the transmission shaft on the connecting rod during the downward movement, and the spiral sliding cooperation between the transmission shaft and the spiral track can make the fixed ring rotate during the movement, so that the fixed ring can drive the gas detector to rotate synchronously through the sliding rod, which is beneficial to improving the radial air tightness detection of the gas cylinder during the collision by the airflow detector, and realizing the comprehensive detection of the gas cylinder by the airflow detector.

[0014] As a preferred technical solution, the secondary detection component includes a studio, a slide plate, a driven airbag, an elastic rope, a slideway, a moving block, a push-pull rod, a connecting rod, a clamping plate and a rubber pad;

[0015] The lower part of the cylinder is provided with a working chamber, and a slide plate is slidably installed in the working chamber, and the slide plate is connected to the bottom of the working chamber through a driven air bag, and the input end of the driven air bag is connected to the air supply pipe, and the bottom of the slide plate is connected to the bottom of the working chamber through an elastic rope, and a plurality of slideways are provided on the top of the working chamber, and a plurality of sliding ways are slidably installed in the plurality of slideways, and the bottom of the moving block is connected to the slide plate through a push-pull rod, and the two ends of the push-pull rod are hinged to the moving block and the slide plate respectively, and a connecting rod is installed on the upper part of the moving block, and a clamping plate is installed on the connecting rod, and a rubber pad is installed on the clamping plate. When the control valve is opened, the airflow in the working cylinder can enter the driven air bag through the air supply pipe, so that the driven air bag pushes the slide plate to stretch the elastic rope to move upward through volume expansion, and the slide plate can push the moving block in the slideway to move toward the storage seat through the push-pull rod during the upward movement, so that the moving block can drive the clamping plate to clamp and fix the gas cylinder on the storage seat through the connecting rod, which can ensure the stability of the gas cylinder when it is hit.

[0016] As a preferred technical solution, an exhaust pipe is installed on the output end of the driven airbag, an air hole is opened on the working room, the exhaust pipe runs through the air hole, and a constant-pressure exhaust valve and an air release valve are installed on the exhaust pipe, the air release valve is electrically connected to the control valve, when the control valve is opened, the air release valve is controlled to be closed, when the slide plate moves to the highest point in the working room, the air flow continuously transported in the air supply pipe can be discharged through the exhaust pipe on the driven airbag, and through the setting of the constant-pressure exhaust valve, the support of the driven airbag to the slide plate can be guaranteed, when the control valve is closed, the air release valve is opened, and the slide plate can compress the driven airbag under the tension of the elastic rope, so that the air flow in the driven airbag is completely discharged through the air release valve on the exhaust pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When the gas cylinder needs to be inspected, the gas cylinder is placed in the storage seat of the inspection room, and the electric telescopic rod is started to drive the cover plate to move down to cover and seal the cylinder body. The oil in the oil tank can be transported into the cylinder body by starting the pump. The instantaneous force of the oil on the sliding plug can be used to compress the reset spring while driving the impact head to impact the gas cylinder through the transmission rod. The sound wave generated by the impact is received by the sound wave receiver, and the analysis processor can compare the damage database according to the sound wave characteristics, thereby improving the accuracy of gas cylinder damage detection.

[0019] By setting up a first-level detection component, the present application can utilize the movement of the cover plate to drive the airflow detector to perform longitudinal airtightness detection on the gas cylinder during the collision process, and can also utilize the spiral sliding cooperation between the transmission shaft and the spiral track to enable the airflow detector to perform radial airtightness detection on the gas cylinder during the collision process, thereby achieving comprehensive detection of the gas cylinder by the airflow detector.

[0020] The present application uses the secondary detection component setting, and can drive the moving block to move toward the storage seat through the driven airbag, so that the clamping plate can clamp and fix the gas cylinder on the storage seat, which can ensure the stability of the gas cylinder when it is hit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the present invention from a first viewing angle;

[0022] Figure 2 It is a schematic diagram of the structure of the second viewing angle of the present invention;

[0023] Figure 3 It is a schematic diagram of the first cutaway structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the second cross-sectional structure of the present invention;

[0025] Figure 5 yes Figure 3 A is an enlarged structural diagram;

[0026] Figure 6 yes Figure 4 The enlarged structural diagram at B in FIG.

[0027] Figure 7 yes Figure 3 The enlarged structural diagram at C in FIG.

[0028] Figure 8 yes Figure 3 The enlarged structural diagram at D in FIG.

[0029] Fig. 9 yes Figure 4 Schematic diagram of the enlarged structure at E in

[0030] In the figure: 1, cylinder; 2, detection chamber; 3, storage seat; 4, fixing block; 5, electric telescopic rod; 6, connecting plate; 7, cover plate; 8, oil tank; 9, cylinder; 10, pump; 11, first oil pipe; 12, second oil pipe; 13, sliding plug; 14, transmission rod; 15, return spring; 16, sliding hole; 17, impact head; 18, sound wave receiver; 19, analysis processor;

[0031] 20. Adjustment assembly; 2001. Annular guide rail; 2002. Sliding seat; 2003. Hydraulic lifting rod;

[0032] 21. Detection of the first-level utilization component; 2101. Fixed plate; 2102. Linkage rod; 2103. Extrusion plate; 2104. Driving airbag; 2105. Support rod; 2106. Working cylinder; 2107. Air flow channel; 2108. Air port; 2109. Piston; 2110. First support spring; 2111. Linkage rod; 2112. Through hole; 2113. Linkage plate; 2114. Air pipe; 2115. Rotating groove; 2116. Rotating ring; 2117. Perforation; 2118. Sliding rod; 2119. Fixed ring; 2120. Second support spring; 2121. Force plate; 2122. Air flow detector; 2123. Connecting rod; 2124. Transmission shaft; 2125. Spiral track;

[0033] 22. Detection of secondary utilization components; 2201. Workroom; 2202. Slide plate; 2203. Driven airbag; 2204. Elastic rope; 2205. Slideway; 2206. Moving block; 2207. Push-pull rod; 2208. Linking rod; 2209. Clamping plate; 2210. Rubber pad; 2211. Exhaust pipe; 2212. Air hole; 2213. Constant pressure exhaust valve. DETAILED DESCRIPTION

[0034] 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 described embodiments 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.

[0035] Example: Figure 1-Figure 5 As shown, the present invention provides a technical solution for a fiber-wound gas cylinder damage detection device based on the acoustic emission characteristics of a composite material, which is characterized in that: the fiber-wound gas cylinder damage detection device based on the acoustic emission characteristics of a composite material comprises a cylinder 1, a detection chamber 2 is provided on the upper part of the cylinder 1, a storage seat 3 is installed at the bottom of the detection chamber 2, two fixed blocks 4 are symmetrically installed on the upper part of the cylinder 1, electric telescopic rods 5 are installed on the two fixed blocks 4, a connecting plate 6 is installed on the electric telescopic rod 5, a cover plate 7 is installed on the connecting plate 6, an oil tank 8 and a cylinder 9 are installed at the bottom of the cover plate 7 through an adjustment component 20, a pump 10 is installed on the oil tank 8, the pump 10 is connected to the oil tank 8 through a first oil pipe 11, the pump 10 is connected to the cylinder 9 through a second oil pipe 12, a sliding plug 13 is slidably installed in the cylinder 9, a transmission rod 14 is installed on the sliding plug 13, and the sliding plug 13 is connected to the cylinder The cylinder body 9 is connected by a reset spring 15, a sliding hole 16 is provided on the cylinder body 9, the transmission rod 14 passes through the sliding hole 16, and an impact head 17 is installed on the transmission rod 14, a sound wave receiver 18 is installed at the bottom of the cover plate 7, and an analysis processor 19 is installed on the cylinder body 1. When it is necessary to detect the gas cylinder, the gas cylinder is placed in the storage seat 3 of the detection chamber 2, and the electric telescopic rod 5 is started, which can drive the cover plate 7 to move down to cover and seal the cylinder body 1, and then by starting the pump 10, the oil in the oil tank 8 can be transported to the cylinder body 9, and the instantaneous force of the oil on the sliding plug 13 can be used to allow the sliding plug 13 to compress the reset spring 15 while driving the impact head 17 to impact the gas cylinder through the transmission rod 14, and the sound wave formed by the impact is received by the sound wave receiver 18, so that the analysis processor 19 can compare the damage database according to the sound wave characteristics, thereby improving the accuracy of gas cylinder damage detection.

[0036] like Figure 3-Figure 5 As shown, the adjustment assembly 20 includes an annular guide rail 2001, a slide seat 2002 and a hydraulic lifting rod 2003;

[0037] An annular guide rail 2001 is installed at the bottom of the cover plate 7, a slide seat 2002 is slidably installed on the annular guide rail 2001, an oil tank 8 is installed on the slide seat 2002, a hydraulic lifting rod 2003 is installed at the bottom of the oil tank 8, and a cylinder body 9 is installed on the hydraulic lifting rod 2003. By starting the annular guide rail 2001, the slide seat 2002 can move in a circular trajectory along the annular guide rail 2001. By starting the hydraulic lifting rod 2003, the hydraulic lifting rod 2003 can drive the cylinder body 9 to perform longitudinal adjustment, so that the impact head 17 can achieve a comprehensive impact on the gas cylinder.

[0038] The cylinder 1 is provided with a primary detection utilization component 21 and a secondary detection utilization component 22 , and the movement of the cover plate 7 is used to provide a driving force for the primary detection utilization component 21 and the secondary detection utilization component 22 .

[0039] like Figure 1-Figure 7 As shown, the detection first-level utilization component 21 includes a fixing plate 2101, a connecting rod 2102, an extrusion plate 2103, a driving airbag 2104, a support rod 2105, a working cylinder 2106, an air flow channel 2107, an air port 2108, a piston 2109, a first supporting spring 2110, a linkage rod 2111, a through hole 2112, a linkage plate 2113 and an air delivery pipe 2114;

[0040] A fixing plate 2101 is installed at the lower part of the cylinder 1, a connecting rod 2102 is installed on the fixing block 4, an extrusion plate 2103 is installed on the connecting rod 2102, the extrusion plate 2103 is connected to the fixing plate 2101 through a driving airbag 2104, a support rod 2105 is installed on the upper part of the fixing block 4, a working cylinder 2106 is installed on the support rod 2105, an air flow channel 2107 is provided in the cylinder wall of the working cylinder 2106, the air flow channel 2107 is connected to the inner bottom of the working cylinder 2106 through an air port 2108, the upper part of the air flow channel 2107 is connected to the driving airbag 2104 through an air pipe 2114, a piston 2109 is slidably installed in the working cylinder 2106, and the upper part of the piston 2109 is connected to the working cylinder 2106 through a first The supporting spring 2110 is connected, and a linkage rod 2111 is installed at the lower part of the piston 2109. A through hole 2112 is opened at the bottom of the working cylinder 2106. The linkage rod 2111 slides through the through hole 2112, and a linkage plate 2113 is installed at the lower part of the linkage rod 2111. When the cover plate 7 seals the cylinder 1, the cover plate 7 can drive the extrusion plate 2103 to compress the driving airbag 2104 through the connecting rod 2102 during the movement, so that the airflow in the driving airbag 2104 can enter the working cylinder 2106 through the air supply pipe 2114 and the airflow channel 2107, so that the piston 2109 can compress the first supporting spring 2110 and move upward under the action of the airflow, so that the piston 2109 can drive the linkage plate 2113 to move upward synchronously through the linkage rod 2111.

[0041] An air supply pipe is installed on the air flow channel 2107, and a control valve is installed on the air supply pipe. A touch switch is installed at the bottom of the cover plate 7, and the touch switch is electrically connected to the control valve. The air supply pipe 2114 and the air supply pipe are both one-way pipes. When the cover plate 7 completely seals the cylinder 1, the control valve is opened by squeezing the touch switch, and the air flow in the working cylinder 2106 can be discharged, so that the piston 2109 can drive the linkage plate 2113 to move downward synchronously under the elastic force of the first support spring 2110.

[0042] The first-level detection component 21 also includes a rotating groove 2115, a rotating ring 2116, a perforation 2117, a sliding rod 2118, a fixing ring 2119, a second supporting spring 2120, a force plate 2121, an airflow detector 2122, a connecting rod 2123, a transmission shaft 2124 and a spiral track 2125;

[0043] The cover plate 7 is provided with a rotating groove 2115, a rotating ring 2116 is rotatably sleeved in the rotating groove 2115, a plurality of through holes 2117 are opened on the rotating ring 2116, a plurality of through holes 2117 are slidably installed with a slide bar 2118, a fixing ring 2119 is installed on the upper end of the slide bar 2118, the fixing ring 2119 is connected to the rotating ring 2116 through a second supporting spring 2120, and a force plate is installed on the fixing ring 2119 2121, an airflow detector 2122 is installed at the lower end of the sliding rod 2118, a connecting rod 2123 is installed on the fixing ring 2119, a transmission shaft 2124 is rotatably installed on the connecting rod 2123, a spiral track 2125 is provided on the side of the working cylinder 2106, and the transmission shaft 2124 slides and penetrates in the spiral track 2125. When the linkage plate 2113 moves downward, the linkage plate 2113 can be pressed downward during the downward movement. The force-bearing plate 2121 allows the force-bearing plate 2121 to drive the fixing ring 2119 to compress the second supporting spring 2120 and move downward synchronously, and then can drive the airflow detector 2122 to move downward synchronously in the detection chamber 2 through the sliding rod 2118, which is beneficial to improving the longitudinal air tightness detection of the gas cylinder in the collision process by the airflow detector 2122. At the same time, the fixing ring 2119 can be moved downward synchronously through the transmission shaft 2114 on the connecting rod 2123 during the downward movement, and the spiral sliding cooperation between the transmission shaft 2124 and the spiral track 2125 can allow the fixing ring 2119 to rotate during the movement, so that the fixing ring 2119 can drive the gas detector 2122 to rotate synchronously through the sliding rod 2118, which is beneficial to improving the radial air tightness detection of the gas cylinder in the collision process by the airflow detector 2122, and realize the comprehensive detection of the gas cylinder by the airflow detector 2122.

[0044] like Figure 3-Figure 4 and Figure 8-Figure 9 As shown, the secondary detection component 22 includes a studio 2201, a slide plate 2202, a driven airbag 2203, an elastic rope 2204, a slideway 2205, a moving block 2206, a push-pull rod 2207, a connecting rod 2208, a clamping plate 2209 and a rubber pad 2210;

[0045] A working room 2201 is provided at the lower part of the cylinder 1, a slide plate 2202 is slidably installed in the working room 2201, the slide plate 2202 is connected to the bottom of the working room 2201 through a driven air bag 2203, the input end of the driven air bag 2203 is connected to the air supply pipe, the bottom of the slide plate 2202 is connected to the bottom of the working room 2201 through an elastic rope 2204, a plurality of slideways 2205 are provided on the top of the working room 2201, a plurality of slideways 2205 are slidably installed with a moving block 2206, the bottom of the moving block 2206 is connected to the slide plate 2202 through a push-pull rod 2207, and the two ends of the push-pull rod 2207 are respectively hinged to the moving block 2206 and the slide plate 2202, the moving block A connecting rod 2208 is installed on the upper part of 2206, and a clamping plate 2209 is installed on the connecting rod 2208. A rubber pad 2210 is installed on the clamping plate 2209. When the control valve is opened, the airflow in the working cylinder 2106 can enter the driven air bag 2203 through the air supply pipe, so that the driven air bag 2203 pushes the slide plate 2202 to stretch the elastic rope 2204 to move upward through volume expansion. During the upward movement, the slide plate 2202 can push the moving block 2206 in the slideway 2205 toward the storage seat 3 through the push-pull rod 2207, so that the moving block 2206 can drive the clamping plate 2209 to clamp and fix the gas cylinder on the storage seat 3 through the connecting rod 2208, thereby ensuring the stability of the gas cylinder when it is hit.

[0046] An exhaust pipe 2211 is installed on the output end of the driven airbag 2203, and an air hole 2212 is opened on the working room 2201. The exhaust pipe 2211 runs through the air hole 2212, and a constant-pressure exhaust valve 2213 and an air release valve are installed on the exhaust pipe 2211. The air release valve is electrically connected to the control valve. When the control valve is opened, the air release valve is controlled to be closed. When the slide plate 2202 moves to the highest point in the working room 2201, the air flow continuously transported in the air supply pipe can be discharged through the exhaust pipe 2211 on the driven airbag 2203, and through the setting of the constant-pressure exhaust valve 2213, the support of the driven airbag 2203 to the slide plate 2202 can be guaranteed. When the control valve is closed, the air release valve is opened, and the slide plate 2202 can compress the driven airbag 2203 under the tension of the elastic rope 2204, so that the air flow in the driven airbag 2203 is completely discharged through the air release valve on the exhaust pipe 2211.

[0047] Working principle of the present invention:

[0048] When the gas cylinder needs to be inspected, the gas cylinder is placed in the storage seat 3 of the inspection chamber 2, and the electric telescopic rod 5 is started to drive the cover plate 7 to move down to cover and seal the cylinder 1. Then, by starting the pump 10, the oil in the oil tank 8 can be transported to the cylinder 9. The instantaneous force of the oil on the sliding plug 13 can be used to compress the reset spring 15 while driving the impact head 17 to impact the gas cylinder through the transmission rod 14. The sound wave generated by the impact is received by the sound wave receiver 18, and the analysis processor 19 can compare the damage database according to the sound wave characteristics, thereby improving the accuracy of gas cylinder damage detection.

[0049] When the cover plate 7 seals the cylinder 1, the cover plate 7 can drive the extrusion plate 2103 to compress the driving airbag 2104 through the connecting rod 2102 during movement, so that the airflow in the driving airbag 2104 can enter the working cylinder 2106 through the air pipe 2114 and the airflow channel 2107, so that the piston 2109 can compress the first support spring 2110 and move upward under the action of the airflow, so that the piston 2109 can drive the linkage plate 2113 to move upward synchronously through the linkage rod 2111.

[0050] When the cover plate 7 is completely sealed against the cylinder 1, the control valve can be opened by squeezing the touch switch, so that the airflow in the working cylinder 2106 can be discharged, so that the piston 2109 can drive the linkage plate 2113 to move downward synchronously under the elastic force of the first support spring 2110, and the linkage plate 2113 can press down the force plate 2121 during the downward movement, so that the force plate 2121 drives the fixing ring 2119 to compress the second support spring 2120 to move downward synchronously, and then the airflow detector 2122 can be driven to move downward synchronously in the detection chamber 2 through the sliding rod 2118, which is beneficial to improve the collision of the airflow detector 2122 During the collision process, the gas cylinder is tested for air tightness in the longitudinal direction. At the same time, the fixed ring 2119 can be synchronously moved downward through the transmission shaft 2114 on the connecting rod 2123 during the downward movement. The spiral sliding cooperation between the transmission shaft 2124 and the spiral track 2125 can allow the fixed ring 2119 to rotate during the movement, so that the fixed ring 2119 can drive the gas detector 2122 to rotate synchronously through the sliding rod 2118, which is beneficial to improve the radial air tightness detection of the gas cylinder during the collision process by the airflow detector 2122, and realize the comprehensive detection of the gas cylinder by the airflow detector 2122.

[0051] When the control valve is opened, the air flow in the working cylinder 2106 can enter the driven airbag 2203 through the air supply pipe, allowing the driven airbag 2203 to push the slide plate 2202 to stretch the elastic rope 2204 to move upward through volume expansion. During the upward movement, the slide plate 2202 can push the moving block 2206 in the slideway 2205 toward the storage seat 3 through the push-pull rod 2207, so that the moving block 2206 can drive the clamping plate 2209 to clamp and fix the gas cylinder on the storage seat 3 through the connecting rod 2208, thereby ensuring the stability of the gas cylinder when it is hit.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A fiber-wound gas cylinder damage detection device based on the acoustic emission characteristics of composite materials, characterized in that: The fiber-wound gas cylinder damage detection device based on the acoustic emission characteristics of composite materials comprises a cylinder (1), a detection chamber (2) is provided on the upper part of the cylinder (1), a storage seat (3) is installed on the bottom of the detection chamber (2), two fixed blocks (4) are symmetrically installed on the upper part of the cylinder (1), electric telescopic rods (5) are installed on the two fixed blocks (4), a connecting plate (6) is installed on the electric telescopic rod (5), a cover plate (7) is installed on the connecting plate (6), an oil tank (8) and a cylinder (9) are installed on the bottom of the cover plate (7) through an adjustment component (20), a pump (10) is installed on the oil tank (8), and the pump ( 10) is connected to an oil tank (8) through a first oil pipe (11), the pump (10) is connected to a cylinder (9) through a second oil pipe (12), a sliding plug (13) is slidably installed in the cylinder (9), a transmission rod (14) is installed on the sliding plug (13), and the sliding plug (13) and the cylinder (9) are connected through a return spring (15), a sliding hole (16) is opened on the cylinder (9), the transmission rod (14) passes through the sliding hole (16), and an impact head (17) is installed on the transmission rod (14), a sound wave receiver (18) is installed at the bottom of the cover plate (7), and an analysis processor (19) is installed on the cylinder (1); The cylinder (1) is provided with a primary detection utilization component (21) and a secondary detection utilization component (22), and the movement of the cover plate (7) is used to provide operating driving force for the primary detection utilization component (21) and the secondary detection utilization component (22); The first-level detection component (21) includes a fixing plate (2101), a connecting rod (2102), an extrusion plate (2103), a driving airbag (2104), a support rod (2105), a working cylinder (2106), an air flow channel (2107), an air port (2108), a piston (2109), a first supporting spring (2110), a linkage rod (2111), a through hole (2112), a linkage plate (2113) and an air delivery pipe (2114); A fixing plate (2101) is installed at the lower part of the cylinder (1), a connecting rod (2102) is installed on the fixing block (4), an extrusion plate (2103) is installed on the connecting rod (2102), the extrusion plate (2103) and the fixing plate (2101) are connected via a driving airbag (2104), a supporting rod (2105) is installed at the upper part of the fixing block (4), a working cylinder (2106) is installed on the supporting rod (2105), an air flow channel (2107) is provided in the cylinder wall of the working cylinder (2106), and the air flow channel (2107) and the inner bottom of the working cylinder (2106) are connected via an air port (210 8) are connected, the upper part of the air flow channel (2107) is connected to the driving airbag (2104) through the air delivery pipe (2114), a piston (2109) is slidably installed in the working cylinder (2106), the upper part of the piston (2109) is connected to the working cylinder (2106) through the first support spring (2110), and a linkage rod (2111) is installed at the lower part of the piston (2109), a through hole (2112) is opened at the bottom of the working cylinder (2106), the linkage rod (2111) slides through the through hole (2112), and a linkage plate (2113) is installed at the lower part of the linkage rod (2111).

2. The fiber-wound gas cylinder damage detection device based on composite material acoustic emission characteristics according to claim 1 is characterized in that: The adjustment assembly (20) comprises an annular guide rail (2001), a sliding seat (2002) and a hydraulic lifting rod (2003); An annular guide rail (2001) is installed at the bottom of the cover plate (7), a slide seat (2002) is slidably installed on the annular guide rail (2001), an oil tank (8) is installed on the slide seat (2002), a hydraulic lifting rod (2003) is installed at the bottom of the oil tank (8), and a cylinder body (9) is installed on the hydraulic lifting rod (2003).

3. The fiber-wound gas cylinder damage detection device based on composite material acoustic emission characteristics according to claim 1 is characterized in that: An air supply pipe is installed on the air flow channel (2107), and a control valve is installed on the air supply pipe. A touch switch is installed at the bottom of the cover plate (7), and the touch switch is electrically connected to the control valve. The air supply pipe (2114) and the air supply pipe are both one-way pipes.

4. The fiber-wound gas cylinder damage detection device based on composite material acoustic emission characteristics according to claim 3 is characterized in that: The first-level detection utilization component (21) also includes a rotating groove (2115), a rotating ring (2116), a perforation (2117), a sliding rod (2118), a fixing ring (2119), a second supporting spring (2120), a force-bearing plate (2121), an airflow detector (2122), a connecting rod (2123), a transmission shaft (2124) and a spiral track (2125); The cover plate (7) is provided with a rotating groove (2115), a rotating ring (2116) is rotatably sleeved in the rotating groove (2115), a plurality of through holes (2117) are opened on the rotating ring (2116), a plurality of through holes (2117) are slidably installed with a sliding rod (2118), a fixing ring (2119) is installed at the upper end of the sliding rod (2118), and the fixing ring (2119) is connected to the rotating ring (2116) via a second supporting spring (2120). A force plate (2121) is installed on the fixed ring (2119), an airflow detector (2122) is installed at the lower end of the sliding rod (2118), a connecting rod (2123) is installed on the fixed ring (2119), a transmission shaft (2124) is rotatably installed on the connecting rod (2123), a spiral track (2125) is provided on the side of the working cylinder (2106), and the transmission shaft (2124) slides and penetrates in the spiral track (2125).

5. The fiber-wound gas cylinder damage detection device based on composite material acoustic emission characteristics according to claim 4 is characterized in that: The secondary detection utilization component (22) includes a working room (2201), a slide plate (2202), a driven airbag (2203), an elastic rope (2204), a slideway (2205), a moving block (2206), a push-pull rod (2207), a connecting rod (2208), a clamping plate (2209) and a rubber pad (2210); The lower part of the cylinder (1) is provided with a working room (2201), a slide plate (2202) is slidably installed in the working room (2201), the slide plate (2202) is connected to the bottom of the working room (2201) via a driven air bag (2203), the input end of the driven air bag (2203) is connected to the air supply pipe, the bottom of the slide plate (2202) is connected to the bottom of the working room (2201) via an elastic rope (2204), and a plurality of slideways (2205) are provided on the top of the working room (2201). A moving block (2206) is slidably installed in each of the plurality of slideways (2205); the bottom of the moving block (2206) is connected to the slide plate (2202) via a push-pull rod (2207), and the two ends of the push-pull rod (2207) are hinged to the moving block (2206) and the slide plate (2202) respectively; a connecting rod (2208) is installed on the upper part of the moving block (2206), a clamping plate (2209) is installed on the connecting rod (2208), and a rubber pad (2210) is installed on the clamping plate (2209).

6. The fiber-wound gas cylinder damage detection device based on composite material acoustic emission characteristics according to claim 5 is characterized in that: An exhaust pipe (2211) is installed on the output end of the driven airbag (2203), an air hole (2212) is opened on the working chamber (2201), the exhaust pipe (2211) passes through the air hole (2212), and a constant pressure exhaust valve (2213) and an air release valve are installed on the exhaust pipe (2211), and the air release valve is electrically connected to the control valve.

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