High pressure resistance detection device and method based on glass fiber pipe production

Abstract

The invention discloses a high pressure resistance detection device and method based on glass fiber tube production, and relates to the technical field of glass fiber tube detection. According to the high-pressure-resistant detection device based on fiberglass pipe production, a plurality of clamping mechanisms are uniformly arranged on the turntable, a plurality of fiberglass pipes to be detected can be borne at the same time, the air supply mechanism is correspondingly equipped with conventional, low, medium, high and ultrahigh pressure air taps, and the air supply mechanism is connected with different air pressure sources through a plurality of inflation holes and air taps of the annular frame in cooperation with a high-pressure hose; according to the device, normal-pressure, low-pressure, medium-pressure, high-pressure and ultrahigh-pressure gas can be conveyed to different stations at the same time, pressure resistance detection of glass fiber pipes located on different detection stations under different pressures can be carried out synchronously, the detection efficiency is remarkably improved, the normal pressure corresponds to the actual working environment, and the other four kinds of pressure are gradient pressure higher than the normal pressure. The full-scene pressure-resistant performance of the glass fiber pipe from daily use to extreme high pressure can be simulated, and the detection result better meets the actual application requirement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass fiber pipe detection, in particular to a high-pressure resistance detection device and method based on glass fiber pipe production. BACKGROUND

[0002] Glass fiber pipes are widely used to transport high-pressure fluids or work in high-pressure environments. If the high-pressure resistance performance is not up to standard, the pipe may burst due to pressure exceeding the bearing limit during use, causing leakage of the transported medium, which may cause fire, explosion, environmental pollution or personnel injury, and other serious safety accidents. Therefore, it is necessary to detect the high-pressure resistance of the completed glass fiber pipe.

[0003] Referring to the high-temperature treated alkali-free glass fiber strength detection guide wire equipment disclosed in the patent application with publication number CN208888047U, the principle of yarn guiding of an air jet loom is used to pass compressed air through the guide wire pipe to reach the designated position, and has an electric heating cutting function. The device is supported by the shell, and has a movable opening and closing box door, which is matched with a sealing ring, a movable hook and a hook, so that the opening and closing of the box door can be easily realized. The external pipe port is used to connect the external high-pressure air, so that the sealing ring between the box door and the shell can prevent the high-pressure air in the shell from leaking from the box door, affecting the function of the device, ensuring that the pressure of the compressed air passing through the guide wire pipe is sufficient, and the device is more reasonable and compact, which is more convenient for operators to use.

[0004] The above-mentioned glass fiber strength detection equipment in the prior art has the following defects in actual use:

[0005] When the current glass fiber pipe testing device tests the pressure resistance, the testing device only supports single pipe testing at a time. In a large batch testing scenario, the operator needs to manually install the next pipe to the testing station after the previous pipe testing is completed, which leads to a complicated testing process and cannot adapt to batch testing requirements, resulting in low overall testing efficiency. In addition, if the same glass fiber pipe needs to be tested at different pressure levels, it needs to be disassembled from the current station and reconnected to the testing station of other pressure specifications. This operation not only increases the complexity of the testing steps, but also prolongs the testing time of a single pipe, making it difficult to achieve efficient testing operation.

[0006] Therefore, the present application proposes a high-pressure resistance detection device and method based on glass fiber pipe production to solve the above problems. SUMMARY

[0007] In view of the deficiencies of the prior art, the present application provides a high-pressure-resistant detection device and method based on glass fiber pipe production, which solves the problem that the current glass fiber pipe testing device only supports single pipe testing at a time, in a large batch testing scenario, the operator needs to wait for the previous pipe testing to end before manually installing the next pipe to the testing station, resulting in a complicated testing process that cannot adapt to batch testing requirements, and the overall testing efficiency is low, and if the same glass fiber pipe needs to be tested at different pressure levels, it needs to be disassembled from the current station and reconnected to the testing station of other pressure specifications, which not only increases the complexity of the testing steps, but also prolongs the testing time of a single pipe, making it difficult to achieve efficient testing operation.

[0008] To achieve the above purpose, the present application is implemented by the following technical solutions: a high-pressure-resistant detection device based on glass fiber pipe production, comprising a test table and a control console fixedly arranged on one side of the top of the test table by a support, further comprising:

[0009] A turntable is rotatably arranged on the top of the test table and driven to rotate by a servo motor, for simultaneously carrying multiple glass fiber pipes to be detected for pressure resistance detection;

[0010] A plurality of clamping mechanisms are uniformly arranged on the top of the turntable for sealing and clamping the two ends of the glass fiber pipe to be detected, automatically adjusting the sealing clamping force of the two ends of the glass fiber pipe according to the detection pressure, and detecting the shape change of the outer wall of the glass fiber pipe to evaluate the pressure resistance of the glass fiber pipe under different detection pressures;

[0011] A gas supply mechanism is arranged below the control console for simultaneously supplying detection gas of different pressure to the stations where the clamping mechanisms are located, and cooperating with the intermittently rotating turntable to test each glass fiber pipe to be tested under normal pressure, low pressure, medium pressure, high pressure and super-high pressure application environment;

[0012] A controller is fixedly arranged on the front of the control console for controlling the operation of all electrical equipment.

[0013] Further, the gas supply mechanism comprises a ring-shaped frame and a sliding block fixedly arranged on one side of the outer wall of the ring-shaped frame, the outer part of the sliding block is slidably sleeved with a sliding rail, a ring-shaped groove is formed on the inner wall of the ring-shaped frame, a plurality of inflation holes are uniformly formed on the inner wall of the ring-shaped groove, and a gas nozzle corresponding to each inflation hole is fixedly arranged on the top of the ring-shaped frame, each gas nozzle is in communication with the inflation hole at the adjacent position, and a pressure relief port is formed between the adjacent two gas nozzles on the outer wall of the ring-shaped frame.

[0014] Further, the inner sealing sliding of the annular groove is provided with a bearing disc, the top of the bearing disc is uniformly provided with a plurality of separated gaps, a support flat plate is formed between adjacent two separated gaps, a gas supply channel for supplying detection gas to the corresponding position of the clamping mechanism is formed on the sidewall of the support flat plate, and an electric push rod is fixedly arranged at the bottom of the control console and above the bearing disc, and the output shaft of the electric push rod is rotationally arranged at the top center position of the bearing disc.

[0015] Further, the top of the control console is further fixedly provided with a bearing ring, the top of the bearing ring is uniformly fixedly provided with a regular pressure gas nozzle, a low-pressure gas nozzle, a medium-pressure gas nozzle, a high-pressure gas nozzle and an ultrahigh-pressure gas nozzle, the regular pressure gas nozzle, the low-pressure gas nozzle, the medium-pressure gas nozzle, the high-pressure gas nozzle and the ultrahigh-pressure gas nozzle are connected with the adjacent position of the gas nozzle through one high-pressure hose respectively, the regular pressure gas nozzle, the low-pressure gas nozzle, the medium-pressure gas nozzle, the high-pressure gas nozzle and the ultrahigh-pressure gas nozzle are connected with an external regular gas pressure source, a low-pressure gas pressure source, a medium-pressure gas pressure source, a high-pressure gas pressure source and an ultrahigh-pressure gas pressure source respectively, and the gas pressure supply amount of different gas pressure sources is controlled through a controller.

[0016] Further, the clamping mechanism comprises a lower clamping assembly fixedly arranged at the top of the rotating disc and an upper clamping assembly arranged directly above the lower clamping assembly, the lower clamping assembly and the upper clamping assembly are used for sealingly clamping two ends of the glass fiber pipe respectively, the outside of the lower clamping assembly is further provided with a deformation detection assembly for detecting the deformation amount of the glass fiber pipe, and the inside of the upper clamping assembly is further provided with a catheter.

[0017] Further, the lower clamping assembly comprises a base and an outer limiting cylinder and an inner limiting cylinder fixedly arranged at the top of the base, a clamping gap is formed between the inner limiting cylinder and the outer limiting cylinder, a plurality of filling rings with an outer diameter gradually decreasing in proportion are detachably arranged on the inner wall of the outer limiting cylinder and in the clamping gap, a plurality of magnetic attraction columns are uniformly fixedly arranged at the bottom of the filling ring, a magnetic attraction hole corresponding to the position of the plurality of magnetic attraction columns is uniformly arranged at the bottom of the clamping gap, and the size of the clamping gap is controlled by increasing or reducing the number of the filling rings to adapt to glass fiber pipes with various outer diameters.

[0018] Further, the outer wall of the inner limiting cylinder is fixedly provided with an upper sealing ring and a lower sealing ring at upper and lower positions respectively, for increasing the sealing between the inner wall of the glass fiber pipe and the inner limiting cylinder, and a sealing air bag is further fixedly sleeved on the outer wall of the inner limiting cylinder between the upper sealing ring and the lower sealing ring, air holes for inflating the sealing air bag are formed on both sides of the inner wall of the inner limiting cylinder, a horizontal plate is further fixedly arranged on the inner wall of the inner limiting cylinder, a lifting rod is slidably arranged in the horizontal plate, a piston is fixedly arranged on the top of the lifting rod, the piston is sealingly and slidably arranged in the inner limiting cylinder, a spring is slidably sleeved on the outer wall of the lifting rod between the piston and the horizontal plate, and limiting blocks for controlling the downward movement of the piston are fixedly arranged on both sides of the inner wall of the spring.

[0019] Further, the upper clamping assembly and the lower clamping assembly are the same in structure, and the only difference is that the inner part of the lifting rod in the upper clamping assembly is a hollow cavity, and the catheter is sealingly and slidably arranged in the hollow cavity, the top end of the catheter is fixedly penetrated through the upper clamping assembly and extends to the outside, and the bottom end of the catheter is slidably penetrated through the upper clamping assembly and extends to the outside.

[0020] Further, the deformation detection assembly comprises oppositely arranged first and second guide rods, a first detection ring, a second detection ring and a third detection ring are slidably sleeved on the outer walls of the first and second guide rods from top to bottom, the first, second and third detection rings are locked with the first and second guide rods through fastening bolts, a plurality of mounting through holes are formed in the outer walls of the first, second and third detection rings, and a detection unit is arranged in each mounting through hole.

[0021] The detection unit comprises a screw rod which is threadedly connected in the mounting through hole, knobs and mounting sleeves are fixedly arranged at both ends of the screw rod, a pressure sensor is fixedly arranged in the inner part of the mounting sleeve, the detection end of the pressure sensor protrudes from the mounting sleeve, an annular sliding groove is formed in the end of the knob close to the screw rod, a scale is slidably arranged in the annular sliding groove, and the scale slidably penetrates through the first detection ring and extends to the inside.

[0022] The application also discloses a high-pressure resistance detection method for glass fiber pipe production, and a high-pressure resistance detection device for glass fiber pipe production.

[0023] Step 1: First, the glass fiber pipe sample to be detected is cut into a length suitable for detection by using a cutting device, and the cut glass fiber pipe is numbered for standby;

[0024] Step 2: A plurality of cut glass fiber pipes are sequentially placed in a plurality of clamping mechanisms, and the two ends of the glass fiber pipes are tightly pressed by using a gas supply mechanism to complete the sealing of the two ends of the glass fiber pipes.

[0025] Step 3, through the external conventional gas source, low pressure gas source, medium pressure gas source, high pressure gas source and super high pressure gas source, the detection gas with different pressure sizes is transported to the clamping mechanism at different positions through the gas supply mechanism at the same time, and the morphological change of the glass fiber pipe is observed;

[0026] Step 4, the servo motor drives the rotating disc to rotate intermittently to switch the clamping mechanism at different positions to be connected with the conventional gas source, low pressure gas source, medium pressure gas source, high pressure gas source and super high pressure gas source in turn, the pressure resistance of the glass fiber pipe under different pressure environments is detected, and the state of the glass fiber pipe with different numbers under different detection pressures is recorded.

[0027] The application provides a high-pressure resistance detection device and method based on glass fiber pipe production.

[0028] 1. A high-pressure resistance detection device and method based on glass fiber pipe production, a plurality of clamping mechanisms are uniformly arranged on the rotating disc, a plurality of glass fiber pipes to be detected can be simultaneously carried, a gas supply mechanism is correspondingly provided with a plurality of gas nozzles of conventional, low, medium, high and super high pressure, the gas supply mechanism is connected with different gas pressure sources through a plurality of inflation holes and gas nozzles of the annular frame and a high-pressure hose, can simultaneously supply conventional pressure, low pressure, medium pressure, high pressure and super high pressure gas to different stations, realizes synchronous pressure resistance detection of the glass fiber pipes in different detection stations under different pressures, significantly improves the detection efficiency, the conventional pressure corresponds to the actual working environment, the other four are gradient pressures higher than the conventional pressure, can simulate the full-scene pressure resistance performance of the glass fiber pipe from daily use to extreme high pressure, and the detection result is more suitable for actual application requirements.

[0029] 2. A high-pressure resistance detection device and method based on glass fiber pipe production, the rotating disc is intermittently rotated and switched by a servo motor, the sample that has completed the previous pressure detection enters the next detection station and is not subjected to another gas pressure detection, a new sample can be clamped in the conventional pressure detection station, the purpose of feeding during the detection gap is realized, and the detection efficiency of the glass fiber pipe is further improved; in addition, the pressure relief port on the annular frame is synchronous with the rotation of the rotating disc, when the sample switches the station, the gas supply channel is automatically released from the pressure relief port, manual pressure relief is not needed, the next station can be directly inflated and detected, the continuous change of the glass fiber pipe in the working state and the empty state can be simulated, so that the working environment of the glass fiber is more truly restored.

[0030] 3. A high-pressure resistant testing device and method based on glass fiber tube production, wherein the sealing air bladder in the clamping mechanism is linked to the detection air pressure. That is, as the detection air pressure inside the glass fiber tube to be tested increases, the piston moves down and squeezes the air in the inner limiting cylinder, which is then filled into the sealing air bladder through the air hole. The higher the air pressure, the more fully the air bladder expands and the tighter it fits against the inner wall of the sample, thus achieving the effect of stronger sealing with higher air pressure. At the same time, the upper and lower sealing rings are used to prevent gas leakage and avoid deviations in the test results caused by air leakage.

[0031] 4. A high-pressure resistant testing device and method based on glass fiber tube production, comprising a deformation detection component, wherein three detection rings (number one, two, and three) can slide up and down along a guide rod and be locked, covering different heights of the tube (upper, middle, and lower). Each detection ring contains multiple pressure sensors, enabling comprehensive monitoring of the glass fiber tube's deformation at multiple heights axially and multiple points circumferentially, avoiding the limitations of single-point monitoring. Furthermore, by rotating a screw with a knob to push the pressure sensor, combined with a scale, the initial preset gap between the sensor and the outer wall of the tube can be precisely adjusted, representing the reasonable deformation of the glass fiber ring under a preset testing pressure. Since the initial distance is known, subsequent deformation can be quantified by the magnitude of the extrusion pressure; that is, the greater the deformation, the greater the pressure value. This replaces the subjective judgment of traditional visual observation, thereby improving detection accuracy.

[0032] 5. A high-pressure resistant testing device and method based on glass fiber tube production, wherein the size of the clamping gap formed by the outer limiting cylinder and the inner limiting cylinder in the clamping assembly can be adjusted by adding or removing filler rings. The filler rings are 1mm thick and have magnetic suction posts, which facilitates installation and disassembly. Furthermore, by increasing or decreasing the number of filler rings, glass fiber tubes with an outer diameter difference of 1mm can be adapted. The device can be compatible with various outer diameter requirements without replacing the entire clamping assembly, thus enabling it to adapt to the testing of various glass fiber rings.

[0033] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the first overall three-dimensional structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of the present invention without the test bench and control console;

[0036] Figure 3 This is a schematic diagram of the second overall three-dimensional structure of the present invention;

[0037] Figure 4 The exploded view of the carrier plate and the ring holder of the present application;

[0038] Figure 5 The enlarged view of the A part in the present application Figure 4 ;

[0039] Figure 6 The cross-sectional view of the carrier plate of the present application;

[0040] Figure 7 The enlarged view of the B part in the present application Figure 6 ;

[0041] Figure 8 The exploded view of the clamping mechanism of the present application;

[0042] Figure 9 The cross-sectional view of the lower clamping assembly of the present application;

[0043] Figure 10 The exploded view of the filling ring and the base of the present application;

[0044] Figure 11 The cross-sectional view of the upper clamping assembly of the present application;

[0045] Figure 12 The structure view of the deformation detection assembly of the present application;

[0046] Figure 13 The enlarged view of the C part in the present application Figure 12 ;

[0047] Figure 14 The structure view of the detection unit of the present application.

[0048] In the figure: 1, test bench; 2, control console; 3, turntable; 4, clamping mechanism; 41, lower clamping assembly; 411, base; 412, outer limiting cylinder; 413, inner limiting cylinder; 414, filling ring; 415, magnetic suction column; 416, upper sealing ring; 417, lower sealing ring; 418, sealing air bag; 419, air hole; 4110, cross plate; 4111, piston; 4112, lifting rod; 4113, spring; 4114, limiting block; 42, upper clamping assembly; 43, deformation detection assembly; 431, first guide rod; 432, second guide rod; 433, No. 1 detection ring; 434, No. 2 detection ring; 435, No. 3 detection ring; 436, fastening bolt; 437, detection unit; 4371, screw; 4372, knob; 4373, mounting sleeve; 4374, pressure sensor; 4375, annular sliding groove; 4376, scale; 44, guide pipe; 5, gas supply mechanism; 51, annular frame; 52, sliding block; 53, sliding rail; 54, annular groove; 55, inflation hole; 56, air nozzle; 57, pressure relief port; 58, bearing disc; 59, separation gap; 510, gas conveying channel; 511, bearing ring; 512, normal pressure air nozzle; 513, low pressure air nozzle; 514, medium pressure air nozzle; 515, high pressure air nozzle; 516, ultrahigh pressure air nozzle; 517, high pressure hose; 518, electric push rod. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0050] The present application provides two technical solutions: a high-pressure-resistant detection device based on glass fiber pipe production, specifically including the following embodiments:

[0051] As Figures 1-7 The first embodiment is shown: a high-pressure-resistant detection device based on glass fiber pipe production, including a test bench 1 and a control console 2 fixedly arranged on one side of the top thereof through a support, further comprising:

[0052] A turntable 3 is rotatably arranged on the top of the test bench 1 and driven to rotate by a servo motor, for simultaneously carrying a plurality of glass fiber pipes to be detected for pressure detection;

[0053] A plurality of clamping mechanisms 4 are evenly arranged on the top of the rotating disc 3, and are used for sealing and clamping the two ends of the glass fiber pipe to be detected, and automatically adjust the sealing clamping force of the two ends of the glass fiber pipe according to the detection pressure, and evaluate the pressure resistance of the glass fiber pipe under different detection pressures through the detection of the shape change of the outer wall of the glass fiber pipe.

[0054] The gas supply mechanism 5 is arranged below the console 2, and is used for supplying detection gas with different pressure values to the working positions of the plurality of clamping mechanisms 4, and cooperating with the intermittently rotating rotating disc 3 to test the glass fiber pipe under the application environment of normal pressure, low pressure, medium pressure, high pressure and ultrahigh pressure. The normal pressure is the actual working environment pressure of the glass fiber pipe, and the low pressure, medium pressure, high pressure and ultrahigh pressure are all detection pressures higher than the normal pressure, and the pressure values increase in turn.

[0055] The controller is fixedly arranged on the front surface of the console 2, and is used for controlling the operation of all electrical equipment.

[0056] In the embodiment, the gas supply mechanism 5 includes a ring-shaped frame 51 and a sliding block 52 fixedly arranged on one side of the outer wall of the ring-shaped frame 51. The outer part of the sliding block 52 is slidably sleeved with a sliding rail 53, and the inner wall of the ring-shaped frame 51 is provided with a ring-shaped groove 54. The inner wall of the ring-shaped groove 54 is evenly provided with a plurality of inflation holes 55 corresponding to the number of clamping mechanisms 4, and the top of the ring-shaped frame 51 is evenly provided with a plurality of air nozzles 56 corresponding to the positions of the plurality of inflation holes 55. Each air nozzle 56 is in communication with the inflation hole 55 at the adjacent position, and the outer wall of the ring-shaped frame 51 is provided with a pressure relief port 57 between the adjacent two air nozzles 56. The plurality of support plates are one-to-one corresponding to the plurality of inflation holes 55, and the gas supply channel 510 on each support plate is in communication with the inflation hole 55 at the corresponding position. The servo motor is intermittently rotated through program control, and after each rotation, the plurality of gas supply channels 510 are always connected with the inflation hole 55 at one position.

[0057] In the embodiment, the inner part of the annular groove 54 is sealingly provided with a bearing disc 58, the top of the bearing disc 58 is uniformly provided with a plurality of partition gaps 59, the support flat plate is formed between two adjacent partition gaps 59, the sidewall of the support flat plate is provided with a gas supply channel 510 for supplying detection gas to the corresponding clamping mechanism 4, the bottom of the control console 2 and above the bearing disc 58 is fixedly provided with an electric push rod 518, the output shaft of the electric push rod 518 is rotationally arranged at the top center position of the bearing disc 58. The top of the control console 2 is also fixedly provided with a bearing ring 511, the top of the bearing ring 511 is uniformly fixedly provided with a conventional pressure gas nozzle 512, a low-pressure gas nozzle 513, a medium-pressure gas nozzle 514, a high-pressure gas nozzle 515 and an ultrahigh-pressure gas nozzle 516, the conventional pressure gas nozzle 512, the low-pressure gas nozzle 513, the medium-pressure gas nozzle 514, the high-pressure gas nozzle 515 and the ultrahigh-pressure gas nozzle 516 are connected with the gas nozzle 56 at the adjacent position through a high-pressure hose 517 respectively, the conventional pressure gas nozzle 512, the low-pressure gas nozzle 513, the medium-pressure gas nozzle 514, the high-pressure gas nozzle 515 and the ultrahigh-pressure gas nozzle 516 are connected with an external conventional gas pressure source, a low-pressure gas pressure source, a medium-pressure gas pressure source, a high-pressure gas pressure source and an ultrahigh-pressure gas pressure source respectively, and the gas pressure supply amount of different gas pressure sources is controlled by a controller. The output end of the conventional gas pressure source, the low-pressure gas pressure source, the medium-pressure gas pressure source, the high-pressure gas pressure source and the ultrahigh-pressure gas pressure source is fixedly provided with a flow meter for monitoring the output gas amount. A rotary damper is further arranged between the output end of the electric push rod 518 and the bearing disc 58, for ensuring the relative stability of the position of the bearing disc 58.

[0058] As Figures 8-14 A second embodiment is shown, which is different from the first embodiment in that the clamping mechanism 4 comprises a lower clamping assembly 41 fixedly arranged on the top of the rotating disc 3 and an upper clamping assembly 42 arranged directly above the lower clamping assembly 41, the lower clamping assembly 41 and the upper clamping assembly 42 are used for sealingly clamping the two ends of the glass fiber pipe respectively, the outer part of the lower clamping assembly 41 is further provided with a deformation detection assembly 43 for detecting the deformation amount of the glass fiber pipe, and the inner part of the upper clamping assembly 42 is further provided with a catheter 44. The upper clamping assembly 42 is fixedly arranged on the bottom of the bearing disc 58. Each catheter 44 is communicated with the corresponding gas supply channel 510, and the gas supply channel 510 supplies detection gas into the glass fiber pipe between the lower clamping assembly 41 and the upper clamping assembly 42 through the catheter 44.

[0059] In the embodiment, the lower clamping assembly 41 comprises a base 411 and an outer limiting cylinder 412 and an inner limiting cylinder 413 fixedly arranged on the top of the base 411, a clamping gap is formed between the inner limiting cylinder 413 and the outer limiting cylinder 412, a plurality of filling rings 414 with outer diameters gradually decreasing are detachably arranged on the inner wall of the outer limiting cylinder 412 and in the clamping gap, a plurality of magnetic attraction columns 415 are uniformly fixed on the bottom of each filling ring 414, a plurality of magnetic attraction holes corresponding to the magnetic attraction columns 415 are uniformly arranged on the bottom of the clamping gap, the size of the clamping gap is controlled by increasing or decreasing the number of the filling rings 414 to adapt to glass fiber tubes with various outer diameters. The thickness of the filling ring 414 is one millimeter, and the outer diameter of the corresponding glass fiber tube is reduced by one millimeter for each filling ring 414 arranged in the clamping gap.

[0060] In the embodiment, the outer wall of the inner limiting cylinder 413 is fixedly arranged with an upper sealing ring 416 and a lower sealing ring 417 at upper and lower positions respectively, so as to increase the sealing between the inner wall of the glass fiber tube and the inner limiting cylinder 413, and the outer wall of the inner limiting cylinder 413 is further fixedly arranged with a sealing air bag 418 between the upper sealing ring 416 and the lower sealing ring 417, the inner wall of the inner limiting cylinder 413 is arranged with air holes 419 on both sides for inflating the sealing air bag 418, and the inner wall of the inner limiting cylinder 413 is further fixedly arranged with a horizontal plate 4110, the inside of the horizontal plate 4110 is slidably arranged with a lifting rod 4112, the top of the lifting rod 4112 is fixedly arranged with a piston 4111, the piston 4111 is sealingly and slidably arranged in the inner limiting cylinder 413, the outer wall of the lifting rod 4112 is slidably arranged with a spring 4113 between the piston 4111 and the horizontal plate 4110, and the inner wall of the spring 4113 is fixedly arranged with limiting blocks 4114 on both sides for controlling the downward movement of the piston 4111.

[0061] In the embodiment, the structure between the upper clamping assembly 42 and the lower clamping assembly 41 is the same, and the only difference is that the lifting rod 4112 inside the upper clamping assembly 42 is a hollow cavity, the conduit 44 is sealingly and slidingly arranged in the hollow cavity, the top end of the conduit 44 is fixedly penetrated through the upper clamping assembly 42 and extends to the outside, and the bottom end of the conduit 44 is slidingly penetrated through the upper clamping assembly 42 and extends to the outside, the shape change detection assembly 43 comprises oppositely arranged first guide rod 431 and second guide rod 432, and a first detection ring 433, a second detection ring 434 and a third detection ring 435 are slidingly sleeved on the outer wall of the first guide rod 431 and the second guide rod 432 from top to bottom, the first detection ring 433, the second detection ring 434 and the third detection ring 435 are locked between the first guide rod 431 and the second guide rod 432 through the fastening bolt 436, a plurality of mounting holes are formed in the outer wall of the first detection ring 433, the second detection ring 434 and the third detection ring 435, and a detection unit 437 is arranged in each mounting hole.

[0062] In the embodiment, the detection unit 437 comprises a screw rod 4371 threadedly connected in the mounting hole, knobs 4372 and mounting sleeves 4373 are fixedly arranged at both ends of the screw rod 4371, a pressure sensor 4374 is fixedly arranged in the inside of the mounting sleeve 4373, the detection end of the pressure sensor 4374 protrudes from the mounting sleeve 4373, an annular sliding groove 4375 is formed in the end of the knob 4372 close to the screw rod 4371, a scale 4376 is slidingly arranged in the annular sliding groove 4375, and the scale 4376 slidingly penetrates through the first detection ring 433 and extends to the inside. The first guide rod 431 and the second guide rod 432 are fixedly arranged on the top of the base 411.

[0063] The application also provides a high-pressure resistance detection method for glass fiber pipe production and a high-pressure resistance detection device for glass fiber pipe production.

[0064] Step 1: first, the glass fiber pipe sample to be detected is cut into a length suitable for detection by using a cutting device, and the cut glass fiber pipe is numbered for standby;

[0065] Step 2: a plurality of cut glass fiber pipes are placed in a plurality of clamping mechanisms 4 in turn, and the two ends of the glass fiber pipe are pressed tightly by using the gas supply mechanism 5 to complete the sealing of the two ends of the glass fiber pipe;

[0066] Step 3: the external conventional gas source, low-pressure gas source, medium-pressure gas source, high-pressure gas source and ultrahigh-pressure gas source simultaneously supply detection gas with different pressures to the clamping mechanisms 4 at different positions through the gas supply mechanism 5, and the morphological changes of the glass fiber pipe are observed;

[0067] Step 4, the servo motor drives the rotating disc 3 to rotate intermittently to switch the clamping mechanism 4 in different positions to be connected with the normal gas source, the low-pressure gas source, the medium-pressure gas source, the high-pressure gas source and the super-high pressure gas source in turn, detect the pressure resistance of the glass fiber pipe under different pressure environments, and record the state of the glass fiber pipe with different numbers under different detection pressures.

[0068] The specific process is: the glass fiber pipe to be detected and the outer diameter size of the inner limiting cylinder 413 are matched, the number of the filling rings 414 is adjusted according to the outer diameter size of the glass fiber pipe to be detected, so that the clamping gap size after the filling ring 414 is assembled is matched with the outer diameter of the glass pipe to be detected, then the end of the glass fiber pipe after cutting is inserted into the outside of the inner limiting cylinder 413 opposite to the normal pressure gas nozzle 512, so that the bottom end of the glass fiber pipe abuts against the bottom of the clamping gap, at this time, the clamping gap is completely filled with the glass fiber pipe to be detected.

[0069] Then, the fastening bolts 436 of the first detection ring 433, the second detection ring 434 and the third detection ring 435 are loosened, the first detection ring 433, the second detection ring 434 and the third detection ring 435 are slid along the first guide rod 431 and the second guide rod 432 in turn, so that the first detection ring 433, the second detection ring 434 and the third detection ring 435 are uniformly distributed on the outer walls of the first guide rod 431 and the second guide rod 432, since the distance between the detection end of the pressure sensor 4374 and the center of the first guide rod 431 or the second guide rod 432 or the first detection ring 433 in the initial state is a known value, at this time, the knob 4372 is rotated to push the pressure sensor 4374 close to the glass fiber pipe to be detected according to the outer diameter size of the glass fiber pipe to be detected, the position of the pressure sensor 4374 is observed by referring to the scale 4376, and a preset gap is set between the end of the pressure sensor 4374 and the outer wall of the glass fiber pipe to be detected, the preset gap is a reasonable deformation amount of the glass fiber pipe to be detected;

[0070] Next, the carrier disc 58 and the annular frame 51 are pushed down by the electric push rod 518, so that the lower clamping assembly 41 and the upper clamping assembly 42 at the corresponding position complete the sealing clamping work of the glass fiber pipe. At the same time, the controller is used to open the normal gas source, the low-pressure gas source, the medium-pressure gas source, the high-pressure gas source and the ultrahigh-pressure gas source. The air output by the normal gas source enters the inflation hole 55 through the normal pressure gas nozzle 512, the high-pressure hose 517 connected with the normal pressure gas nozzle 512, the gas nozzle 56 and the inflation hole 55. The gas enters the gas conveying channel 510 through the inflation hole 55, so as to simulate the state of the glass fiber pipe in actual work. Next, the gas enters the glass fiber pipe which has completed clamping through the gas conveying channel 510 and the conduit 44. With the increase of the gas pressure, the pistons 4111 in the lower clamping assembly 41 and the upper clamping assembly 42 move in the direction away from each other. For example, the piston 4111 in the lower clamping assembly 41 moves downward along the inner wall of the inner limiting cylinder 413. When the piston 4111 moves downward, the air in the inner limiting cylinder 413 is extruded and enters the sealing air bag 418 through the air hole 419. After the sealing air bag 418 is inflated with the air, the sealing air bag 418 gradually expands, so that the outer wall of the sealing air bag 418 tightly abuts against the inner wall of the glass fiber pipe, thereby achieving a further sealing effect. With the increase of the detection gas pressure, the distance that the piston 4111 moves downward is further increased. The sealing air bag 418 is inflated with more air within the allowable range, so that the sealing force between the sealing air bag 418 and the inner wall of the glass fiber pipe is further increased, thereby preventing the situation that the detection gas pressure is too large and air leakage occurs.

[0071] After the normal gas pressure detection is completed, the controller is used to control the servo motor to rotate intermittently by a preset angle, so that the glass fiber pipe which has completed the normal gas pressure detection is rotated to the low-pressure gas nozzle 513 position corresponding to the low-pressure gas source detection station. During the rotation of the rotating disc 3, the carrier disc 58 rotates synchronously. When the gas conveying channel 510 rotates to the position opposite to the pressure relief port 57, the gas in the glass fiber pipe is released through the pressure relief port 57. In the low-pressure gas source detection station, the low-pressure gas source is used to inflate the glass fiber pipe with low-pressure gas through the low-pressure gas nozzle 513 connected with the low-pressure gas nozzle 513, the high-pressure hose 517, the gas nozzle 56 and the inflation hole 55, so as to simulate the low-pressure state in which the fluid pressure in the glass fiber pipe is higher than the normal pressure. Similarly, when the rotating disc 3 rotates to the medium-pressure, high-pressure and ultrahigh-pressure detection stations in sequence, the glass fiber pipe to be detected is respectively inflated with medium-pressure, high-pressure and ultrahigh-pressure detection gas. The detection process is the same as the normal gas pressure detection and the low-pressure detection process.

[0072] If the glass fiber pipe deforms during the detection process because it cannot withstand the detection gas pressure, the deformed glass fiber pipe contacts the pressure sensor 4374 and generates a certain extrusion force on the detection end of the pressure sensor 4374. The pressure sensor 4374 sends the detection pressure to the terminal equipment in a wireless transmission mode. The deformation amount of the glass fiber pipe is analyzed by analyzing the size of the extrusion force value. That is, the larger the deformation amount is, the larger the pressure value detected by the detection end of the pressure sensor 4374 is.

[0073] When the rotary disc 3 rotates to switch the detection station, i.e. from the previous detection station to the next detection station, all the detection gas sources can be closed, the carrying disc 58 and the annular frame 51 are pulled up by the electric push rod 518, so that the lower clamping assembly 41 and the upper clamping assembly 42 at the corresponding position are separated, then a new glass fiber pipe to be detected can be placed again at the conventional gas pressure detection station, and then the lower clamping assembly 41 and the upper clamping assembly 42 at the corresponding position clamp and seal the two ends of the glass fiber pipe to be detected again.

[0074] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0075] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure resistance testing device based on glass fiber tubes, comprising a test bench and a control console fixedly mounted on one side of its top via a bracket, characterized in that, Also includes: The turntable, which is mounted on the top of the test bench and driven to rotate by a servo motor, is used to simultaneously carry multiple glass fiber tubes to be tested for pressure resistance testing. Multiple clamping mechanisms are evenly arranged on the top of the turntable to seal and clamp the two ends of the glass fiber tube to be tested. The sealing and clamping force at both ends of the glass fiber tube is automatically adjusted according to the test pressure. The pressure resistance of the glass fiber tube under different test pressures is evaluated by detecting the change in the shape of the outer wall of the glass fiber tube. The gas supply mechanism, located below the control console, is used to simultaneously deliver test gas of different pressures to multiple clamping mechanism workstations. It works in conjunction with an intermittently rotating turntable to perform routine pressure, low pressure, medium pressure, high pressure and ultra-high pressure application environment tests on each glass fiber tube to be tested. The controller, fixedly mounted on the front of the console, is used to control the operation of all electrical equipment.

2. The high-pressure resistance testing device based on glass fiber tube production according to claim 1, characterized in that: The air supply mechanism includes an annular frame and a slider fixedly disposed on one side of its outer wall. The slider is slidably fitted with a slide rail. An annular groove is formed on the inner wall of the annular frame. An inflation hole is evenly formed on the inner wall of the annular groove, which is adapted to the number of clamping mechanisms. An air nozzle is evenly fixedly disposed on the top of the annular frame, which corresponds to the positions of the multiple inflation holes. Each air nozzle is connected to an adjacent inflation hole. A pressure relief port is formed on the outer wall of the annular frame between two adjacent air nozzles.

3. The high-pressure resistance testing device based on glass fiber tube production according to claim 2, characterized in that: The annular groove is sealed and slidably fitted with a support plate. The top of the support plate is evenly provided with multiple partition gaps, and a support plate is formed between two adjacent partition gaps. The side wall of the support plate is provided with an air supply channel for supplying gas to the clamping mechanism at the corresponding position. An electric push rod is fixedly installed at the bottom of the control console and above the support plate. The output shaft of the electric push rod is rotatably located at the top center of the support plate.

4. The high-pressure resistance testing device based on glass fiber tube production according to claim 2, characterized in that: The top of the control console is also fixedly equipped with a support ring. The top of the support ring is uniformly equipped with conventional pressure air nozzles, low-pressure air nozzles, medium-pressure air nozzles, high-pressure air nozzles, and ultra-high-pressure air nozzles. Each of the conventional pressure air nozzles, low-pressure air nozzles, medium-pressure air nozzles, high-pressure air nozzles, and ultra-high-pressure air nozzles is connected to an adjacent air nozzle through a high-pressure hose. The conventional pressure air nozzles, low-pressure air nozzles, medium-pressure air nozzles, high-pressure air nozzles, and ultra-high-pressure air nozzles are respectively connected to an external conventional air pressure source, low-pressure air pressure source, medium-pressure air pressure source, high-pressure air pressure source, and ultra-high-pressure air pressure source, and the air pressure supply of different air pressure sources is controlled by a controller.

5. The high-pressure resistance testing device based on glass fiber tube production according to claim 1, characterized in that: The clamping mechanism includes a lower clamping assembly fixedly mounted on the top of the turntable and an upper clamping assembly positioned directly above the lower clamping assembly. The lower and upper clamping assemblies are used to seal and clamp both ends of the glass fiber tube, respectively. A deformation detection assembly is also provided on the outside of the lower clamping assembly to detect the deformation of the glass fiber tube. A conduit is also provided inside the upper clamping assembly.

6. The high-pressure resistance testing device based on glass fiber tube production according to claim 5, characterized in that: The lower clamping assembly includes a base and an outer limiting cylinder and an inner limiting cylinder fixedly disposed on the top of the base. A clamping gap is formed between the inner limiting cylinder and the outer limiting cylinder. Multiple filling rings with proportionally decreasing outer diameters are detachably disposed on the inner wall of the outer limiting cylinder and within the clamping gap. Multiple magnetic suction posts are uniformly fixedly disposed at the bottom of the filling rings. Magnetic suction holes corresponding one-to-one with the positions of the multiple magnetic suction posts are uniformly opened at the bottom of the clamping gap. The size of the clamping gap can be controlled by increasing or decreasing the number of filling rings to adapt to glass fiber tubes with various outer diameters.

7. A high-pressure resistant testing device based on glass fiber tube production according to claim 6, characterized in that: An upper sealing ring and a lower sealing ring are fixedly installed on the upper and lower positions of the outer wall of the inner limiting cylinder, respectively, to increase the sealing between the inner wall of the glass fiber tube and the inner limiting cylinder. A sealing airbag is also fixedly sleeved on the outer wall of the inner limiting cylinder between the upper and lower sealing rings. Air holes for inflating the sealing airbag are opened on both sides of the inner wall of the inner limiting cylinder. A horizontal plate is also fixedly installed on the inner wall of the inner limiting cylinder. A lifting rod is slidably installed inside the horizontal plate. A piston is fixedly installed at the top of the lifting rod. The piston is slidably installed inside the inner limiting cylinder. A spring is slidably sleeved on the outer wall of the lifting rod between the piston and the horizontal plate. Limiting blocks for controlling the lower limit of the piston movement are fixedly installed on both sides of the inner wall of the spring.

8. A high-pressure resistance testing device based on glass fiber tube production according to claim 7, characterized in that: The upper clamping assembly and the lower clamping assembly have the same structure. The only difference is that the lifting rod inside the upper clamping assembly is a hollow cavity. The conduit is sealed and slidably disposed in the hollow cavity. The top end of the conduit is fixedly inserted through the upper clamping assembly and extends to the outside, and the bottom end of the conduit slides through the upper clamping assembly and extends to the outside.

9. A high-pressure resistance testing device based on glass fiber tube production according to claim 5, characterized in that: The deformation detection assembly includes a first guide rod and a second guide rod arranged opposite to each other. A first detection ring, a second detection ring, and a third detection ring are slidably sleeved on the outer walls of the first and second guide rods from top to bottom. The first detection ring, the second detection ring, and the third detection ring are all locked to the first guide rod and the second guide rod by fastening bolts. The outer walls of the first detection ring, the second detection ring, and the third detection ring are all provided with multiple mounting through holes, and a detection unit is provided in each mounting through hole. The detection unit includes a screw threaded into a mounting through hole. A knob and a mounting sleeve are fixedly installed at both ends of the screw. A pressure sensor is fixedly installed inside the mounting sleeve. The detection end of the pressure sensor protrudes from the mounting sleeve. An annular groove is provided at the end of the knob near the screw. A scale is slidably installed in the annular groove. The scale slides through the first detection ring and extends into the interior.

10. A method for testing the high-pressure resistance of glass fiber tubes, characterized in that: A high-pressure resistance testing device for the production of glass fiber tubes as described in any one of claims 1-9, the method comprising the following steps: Step 1: First, cut the glass fiber tube sample to be tested into a length suitable for testing using a cutting device, and number the cut glass fiber tubes for later use. Step 2: Place multiple cut glass fiber tubes into multiple clamping mechanisms in sequence, and use the air supply mechanism to press the two ends of the glass fiber tubes together to seal the two ends of the glass fiber tubes. Step 3: Simultaneously supply test gas of different pressures to the clamping mechanisms at different positions through the gas supply mechanism using an external conventional gas source, low-pressure gas source, medium-pressure gas source, high-pressure gas source and ultra-high-pressure gas source, and observe the morphological changes of the glass fiber tube. Step 4: The servo motor drives the turntable to rotate intermittently, switching the clamping mechanism at different positions to connect to the conventional air source, low-pressure air source, medium-pressure air source, high-pressure air source and ultra-high-pressure air source in sequence, to test the pressure resistance of the glass fiber tube under different pressure environments, and record the status of glass fiber tubes with different numbers under different test pressures.

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