Polytetrafluoroethylene corrugated pipe performance detection device

Abstract

The invention relates to the technical field of pipeline detection, particularly discloses a polytetrafluoroethylene corrugated pipe performance detection device, and aims to solve the problem of inconvenience in testing in the prior art. Comprising a test box, a perspective door group is arranged on the outer side of the test box, a bearing part for supporting a corrugated pipe A is arranged in the test box, and the position of the corrugated pipe A is transferred through the bearing part so that the position of the corrugated pipe A can be rapidly adjusted. And the two ends of the corrugated pipe A are plugged through the expansion parts. The device is designed according to existing requirements, the corrugated pipe can be conveniently and rapidly adjusted and positioned, then the corrugated pipe is rapidly detected according to the filling pressure by rapidly clamping and plugging the two ends and matching with filling of liquid and gas, and the test can be visually observed in the detection process.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline detection, in particular to a polytetrafluoroethylene bellows performance detection device. Background Art

[0002] Polytetrafluoroethylene corrugated pipe is a new type of lightweight pipe made of high-density polyethylene. Its excellent wall structure design has excellent chemical stability, strong resistance to external pressure, small friction coefficient, large flow, long service life, aging resistance and environmental stress cracking resistance. At present, high-density polyethylene HDPE double-wall corrugated pipe needs to be inspected after production to prevent unqualified corrugated pipes from entering the market. Therefore, it is necessary to detect cracks in its pipe wall. The existing patent announcement number CN113984303B discloses a corrugated pipe performance detection device, which uses the rise and fall of the liquid and the pressure change of the gas at the top of the outer side to achieve the effect of detecting the location of the sealing defect. After that, the device after the air tightness detection is used to continue to detect the compressive performance of the corrugated pipe. However, when testing the corrugated pipe here, the pipeline needs to be built-in, and the actual test of the pipeline cannot be observed intuitively. In addition, it is not convenient to test different pipelines when testing here, and the test limitations are large. And it is more complicated to seal the corrugated pipe, which is not conducive to improving efficiency.

[0003] Based on this, a polytetrafluoroethylene bellows performance detection device is now provided, which can eliminate the disadvantages of the existing device. Summary of the invention

[0004] The purpose of the present invention is to provide a polytetrafluoroethylene bellows performance detection device, which solves the problem of inconvenient testing in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions: A polytetrafluoroethylene bellows performance testing device comprises a test box, a perspective door group is provided on the outside of the test box, a bearing component for supporting the bellows A is provided inside the test box, the position of the bellows A is shifted by the bearing component so as to quickly adjust the position of the bellows A, two symmetrically arranged expansion components are provided inside the test box, both ends of the bellows A are blocked by the expansion components, the expansion components are connected to a filling component for filling gas or liquid into the bellows A so as to test the actual use status of the bellows A, and the expansion components and the bearing components are electrically connected to a control panel arranged on the outside of the test box.

[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional scheme: the expansion component includes a blocking tube, a conical head is provided at the end of the blocking tube, a discharge port is provided at the end of the conical head, a connection port for docking with the filling component is provided at the tail of the blocking tube, a receiving ring groove is provided on the outer side of the blocking tube near the conical head, an expansion rubber ring is provided at the position of the receiving ring groove, a cache ring box is rotatably provided on the outer side of the blocking tube, the cache ring box is connected to the receiving ring groove through a plurality of air guide channels, a vertical hanger is connected to the outer side of the cache ring box, an airway is provided inside the vertical hanger, the vertical hanger is connected to a feed drive component for driving it to approach or move away from the bellows A, and the blocking tube is also connected to a flip drive component for driving it to rotate.

[0007] In an optional solution: the flipping drive component includes an adjusting bracket fixedly connected to the vertical suspension rod, an adjusting motor is fixedly provided on the adjusting bracket, an adjusting worm is provided at the output end of the adjusting motor, the adjusting worm is rotatably connected to the adjusting bracket, an adjusting worm wheel is provided on the outer side of the blocking tube, and the adjusting worm wheel and the adjusting worm are meshed with each other.

[0008] In an optional scheme: the feed drive component includes two feed sliders, the two feed sliders are slidably set on a transverse cross bar, the two ends of the transverse cross bar are fixedly connected to the inner wall of the test box, the lower end of the feed slider is connected to the vertical suspension rod, two threaded blocks are provided between the two feed sliders, the two threaded blocks are threadedly set on a threaded rod, one end of the threaded rod is rotatably connected to the inner wall of the test box, and the other end of the threaded rod is connected to a feed motor for driving it to rotate, the feed motor is fixedly installed on the outside of the test box, each threaded block is provided with an extrusion vertical plate at the lower end, the threaded rod is provided with a threaded area matching the two threaded blocks, the two threaded areas have opposite rotation directions, a limiting traction member is provided between the feed slider and the threaded block, and an inflatable member corresponding to the extrusion vertical plate is provided under the transverse cross bar for inflating the expansion member.

[0009] In an optional scheme: the inflatable part includes a horizontally arranged piston cylinder, the outer side of the piston cylinder is connected and fixed to the inner wall of the test box by a positioning rod, a piston plate is slidably provided at each end of the piston cylinder, the outer end of the piston plate is connected to the piston rod, a positioning sleeve is fixedly provided at the end of the piston cylinder, the positioning sleeve is provided with a through hole that slides with the piston rod, a piston push plate is provided at the outer end of the piston rod, the piston push plate and the positioning sleeve are connected by a piston return spring, an exhaust cylinder is connected to the middle position on the lower side of the piston cylinder, and the exhaust cylinder is connected to the vertical suspension rod through an air guide hose.

[0010] In an optional solution: the limiting traction member includes a first traction block arranged on the outside of the feed slider, a second traction block is arranged on the outside of the threaded block, the second traction block and the first traction block are connected by an elastic traction rope, the feed slider is provided with an avoidance gap for facilitating the passage of the threaded rod, the transverse cross bar is provided with a limiting block for limiting the stroke of the feed slider, and a return spring is provided between the limiting block and the feed slider.

[0011] In an optional solution: the filling component includes a first pipe rotatably arranged at the outer end of the blocking tube, a second pipe is slidably arranged at the end of the first pipe, a sealing ring is arranged between the second pipe and the first pipe, one of the second pipes is connected to a feeding unit for feeding material into the bellows A, and the other second pipe is connected to a receiving unit for recovering liquid or gas in the bellows A.

[0012] In an optional scheme: the feeding unit includes a liquid inlet pipe and a gas inlet pipe connected to the outside of a second pipeline, a first solenoid valve is provided on the liquid inlet pipe, the lower end of the liquid inlet pipe is connected to a liquid pump, the suction end of the liquid pump extends to the liquid storage box, and a second solenoid valve is provided on the gas inlet pipe. The lower end of the gas inlet pipe is connected to the output end of the air pump, and the suction end of the air pump extends to the gas storage box.

[0013] In an optional scheme: the material receiving unit includes a gas recovery pipe and a third solenoid valve connected to the outside of another second pipeline, the lower end of the gas recovery pipe is connected to the gas recovery box, and a fourth solenoid valve is provided on the gas recovery pipe, the lower end of the third solenoid valve is connected to the liquid recovery box, and a liquid recovery pipe is provided on the third solenoid valve.

[0014] In an optional solution: the bearing component includes a horizontally arranged bearing plate, a guide member is provided between the bearing plate and the test box, a displacement push rod is installed on the test box, the output end of the displacement push rod is connected to the bearing plate through a pushing connecting rod, and a fine-tuning support member for fine-tuning the position of the bellows A is provided at the upper end of the bearing plate.

[0015] In an optional scheme: the fine-tuning support member includes a supporting slide symmetrically arranged on a supporting plate, the supporting slide and the supporting plate are slidingly arranged, a transmission screw hole is provided in the middle position of the two supporting slides, and a fine-tuning screw is matched with the two transmission screw holes, and the fine-tuning screw is provided with a threaded area matching the two supporting slides, and the thread rotation directions of the two threaded areas are opposite, one end of the fine-tuning screw is connected to the output end of the fine-tuning motor, and the other end of the fine-tuning screw is rotatably connected to the fixed block on the supporting plate, the fine-tuning motor is fixedly connected to the upper end of the supporting plate, and a plurality of triangular support blocks are provided on the upper ends of the two supporting slides, and the two rows of triangular support blocks constitute a V-shaped support surface for supporting the corrugated pipe A.

[0016] In an optional solution: the guide member includes at least two displacement sleeves connected to the test box, and a displacement slide rod connected to a bearing plate is slidably provided on the displacement sleeve.

[0017] In an optional solution: the perspective door group includes a sliding opening arranged on the front side of the test box, and a movable door is slidably matched at the sliding opening. The movable door is provided with an observation window for easy observation, and the observation window is tempered glass.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention is designed according to existing needs, and is convenient for quickly adjusting and positioning the bellows. Then, the two ends are quickly clamped and sealed, and liquid and gas are filled to quickly detect the bellows according to the filling pressure. The test can be observed intuitively during the detection process. In addition, the bellows in the test state can be turned over to observe its surroundings to avoid the problem of blind spots in observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of one side of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the other side of the present invention.

[0021] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0022] Figure 4 This is a schematic structural diagram of the perspective door assembly of the present invention when it is opened.

[0023] Figure 5 It is a schematic diagram of the structure of the feed drive component of the present invention.

[0024] Figure 6 For the present invention Figure 5 A partial enlarged view of the structure.

[0025] Figure 7 It is a schematic diagram of the expansion component structure of the present invention.

[0026] Figure 8 It is a schematic diagram of the structure of the bearing component of the present invention.

[0027] Reference numerals: test box 100, movable door 101, observation window 102, control panel 103; First pipeline 201, second pipeline 202, first solenoid valve 203, liquid pump 204, liquid storage box 205, air pump 206, gas storage box 207, second solenoid valve 208, liquid recovery box 209, liquid recovery pipe 210, third solenoid valve 211, gas recovery box 212, fourth solenoid valve 213, gas recovery pipe 214; Expansion component 300, adjustment worm gear 301, adjustment motor 302, adjustment worm 303, adjustment bracket 304, buffer ring box 305, vertical suspension rod 306, air guide channel 307, expansion rubber ring 308, cone head 309, blocking cannula 310, storage ring groove 311, piston cylinder 312, positioning sleeve 313, positioning bracket rod 314, piston return spring 315, piston push plate 316, exhaust cylinder 317, piston plate 318, air guide hose 319; Feed drive component 400, feed slider 401, avoidance gap 402, return spring 403, threaded block 404, threaded rod 405, transverse crossbar 406, first traction block 407, elastic traction rope 408, second traction block 409, extrusion vertical plate 410, feed motor 411, limit stopper 412; The bearing component 500, the bearing plate 501, the supporting slide 502, the displacement slide rod 503, the displacement sleeve 504, the displacement push rod 505, the push connecting rod 506, the triangular support block 507, the fine-tuning motor 508, and the fine-tuning screw 509; Bellows A. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figure 1-Figure 8 As shown, an embodiment of the present invention provides a polytetrafluoroethylene bellows performance testing device, including a test box 100, a perspective door group is provided on the outside of the test box 100, a bearing component 500 for supporting the bellows A is provided inside the test box 100, the position of the bellows A is transferred by the bearing component 500, so as to quickly adjust the position of the bellows A, two symmetrically arranged expansion components 300 are provided inside the test box 100, the two ends of the bellows A are blocked by the expansion components 300, the expansion components 300 are connected to a filling component for filling gas or liquid into the bellows A, so as to test the actual use state of the bellows A, and the expansion component 300 and the bearing component 500 are electrically connected to a control panel 103 arranged on the outside of the test box 100; The expansion component 300 includes a plugging cannula 310, a conical head 309 is provided at the end of the plugging cannula 310, a discharge port is provided at the end of the conical head 309, a connection port for docking with the filling component is provided at the tail of the plugging cannula 310, a receiving ring groove 311 is provided on the outer side of the plugging cannula 310 near the conical head 309, an expansion rubber ring 308 is provided at the position of the receiving ring groove 311, a cache ring box 305 is provided on the outer side of the plugging cannula 310 for rotation, and the cache ring box 305 is connected to the receiving ring groove 311 through multiple air guide channels 307, and the cache ring The outside of the box 305 is connected to a vertical suspension rod 306, and an air passage is provided inside the vertical suspension rod 306. The vertical suspension rod 306 is connected to a feed drive component 400 for driving it to approach or move away from the bellows A. The feed drive component 400 can not only insert the blocking cannula 310 into the bellows A, but also seal the blocking cannula 310 with the inner wall of the bellows A, which kills two birds with one stone and helps to improve the processing efficiency. The blocking cannula 310 is also connected to a flip drive component for driving it to rotate. The flip drive component can drive the bellows A to rotate, so that the bellows A under test can be observed all around; The flip driving member includes an adjusting bracket 304 fixedly connected to a vertical suspension rod 306, an adjusting motor 302 is fixedly provided on the adjusting bracket 304, an adjusting worm 303 is provided at the output end of the adjusting motor 302, the adjusting worm 303 is rotatably connected to the adjusting bracket 304, an adjusting worm wheel 301 is provided on the outer side of the blocking cannula 310, the adjusting worm wheel 301 and the adjusting worm 303 are meshed with each other, so that the adjusting motor 302 can drive the adjusting worm 303 to rotate, and the adjusting worm 303 matches the adjusting worm wheel 301 to drive the blocking cannula 310 to rotate, so that the bellows A can be turned; The feed drive component 400 includes two feed sliders 401, which are slidably arranged on a transverse crossbar 406, both ends of which are fixedly connected to the inner wall of the test box 100, and the lower end of the feed slider 401 is connected to the vertical suspension rod 306. Two threaded blocks 404 are arranged between the two feed sliders 401, and the two threaded blocks 404 are threadedly arranged on a threaded rod 405. One end of the threaded rod 405 is rotatably connected to the inner wall of the test box 100, and the other end of the threaded rod 405 is connected to a feed motor 411 for driving the rotation thereof, and the feed motor 411 is fixedly installed on the outside of the test box 100. An extrusion vertical plate 410 is arranged at the lower end of each threaded block 404, and a vertical plate 410 is arranged on the threaded rod 405. The threaded areas of the two threaded blocks 404 match each other, and the rotation directions of the two threaded areas are opposite. A limiting traction member is provided between the feed slider 401 and the threaded block 404. The threaded rod 405 is driven to rotate by the feed motor 411. The threaded rod 405 matches the threaded block 404, so that the threaded block 404 slides along the transverse crossbar 406. When the threaded block 404 slides, the limiting traction member can drive the feed slider 401 to move a fixed distance toward the bellows A. An inflatable member corresponding to the extrusion vertical plate 410 for inflating the expansion component 300 is provided below the transverse crossbar 406. The inflatable member can expand the expansion rubber ring 308 in the expansion component 300, so that the outer side of the expansion rubber ring 308 presses against the inner wall of the bellows A to achieve sealing; The inflatable part includes a horizontally arranged piston cylinder 312, the outer side of the piston cylinder 312 is connected and fixed to the inner wall of the test box 100 through a positioning frame rod 314, a piston plate 318 is slidably provided at both ends of the piston cylinder 312, the outer end of the piston plate 318 is connected to the piston rod, a positioning sleeve 313 is fixedly provided at the end of the piston cylinder 312, the positioning sleeve 313 is provided with a through hole that slides with the piston rod, a piston push plate 316 is provided at the outer end of the piston rod, the piston push plate 316 is connected to the positioning sleeve 313 through a piston return spring 315, and an exhaust cylinder 317 is connected to the middle position of the lower side of the piston cylinder 312. The gas cylinder 317 is connected to the vertical suspension rod 306 through the gas guide hose 319. When the threaded block 404 moves horizontally, the extrusion vertical plate 410 at the lower end of the threaded block 404 will generate thrust on the piston push plate 316, so that the piston plate 318 squeezes the air inside the piston cylinder 312, so that the gas enters the vertical suspension rod 306 along the exhaust cylinder 317 and the gas guide hose 319, so as to inflate the expansion component 300, and the gas enters the buffer ring box 305 along the vertical suspension rod 306, and then enters the storage ring groove 311 along the buffer ring box 305 and the gas guide channel 307, so that the expansion rubber ring 308 expands to achieve inflation and sealing; The limiting traction member includes a first traction block 407 arranged on the outside of the feed slider 401, a second traction block 409 is arranged on the outside of the threaded block 404, the second traction block 409 and the first traction block 407 are connected by an elastic traction rope 408, the feed slider 401 is provided with an avoidance gap 402 for the threaded rod 405 to pass through, the transverse crossbar 406 is provided with a limiting block 412 for limiting the stroke of the feed slider 401, and a return spring 403 is arranged between the limiting block 412 and the feed slider 401. When the threaded block 404 moves along the threaded rod 405, the second traction block 409, the elastic traction rope 408 and the first traction block 407 cooperate to drive the feed slider 401 to slide along the transverse crossbar 406. When sliding to the position of the limiting block 412, the feed slider 401 stops moving forward, and the blocking cannula 310 in the expansion component 300 has entered the corrugated tube A at this time; The filling component includes a first pipe 201 rotatably arranged at the outer end of the plugging insert 310, a second pipe 202 is slidably arranged at the end of the first pipe 201, a sealing ring is arranged between the second pipe 202 and the first pipe 201, one of the second pipes 202 is connected to a feeding unit for feeding material into the bellows A, and the other second pipe 202 is connected to a receiving unit for recovering liquid or gas in the bellows A, and the test of the bellows A is completed by the cooperation of the receiving unit and the feeding unit; The feeding unit includes a liquid inlet pipe and a gas inlet pipe connected to the outside of a second pipeline 202. A first solenoid valve 203 is provided on the liquid inlet pipe. The lower end of the liquid inlet pipe is connected to a liquid pump 204. The suction end of the liquid pump 204 extends to a liquid storage box 205. A second solenoid valve 208 is provided on the gas inlet pipe. The lower end of the gas inlet pipe is connected to an output end of an air pump 206. The suction end of the air pump 206 extends to a gas storage box 207. In this way, the gas stored in the gas storage box 207 can be sent to the bellows A through the air pump 206 to perform testing. The material receiving unit includes a gas recovery pipe 214 and a third solenoid valve 211 connected to the outside of another second pipe 202. The lower end of the gas recovery pipe 214 is connected to the gas recovery box 212. The gas recovery pipe 214 is provided with a fourth solenoid valve 213. The lower end of the third solenoid valve 211 is connected to the liquid recovery box 209. The third solenoid valve 211 is provided with a liquid recovery pipe 210. When recovering gas, the tested gas enters the second pipe 202 along the first pipe 201, and then enters the gas recovery box 212 along the gas recovery pipe 214. Similarly, the liquid will enter the liquid recovery box 209 along the third solenoid valve 211. The liquid and gas here are controlled by valves, so there is no need to worry about cross flow; The bearing component 500 includes a horizontally arranged bearing plate 501, a guide member is arranged between the bearing plate 501 and the test box 100, a displacement push rod 505 is installed on the test box 100, and the output end of the displacement push rod 505 is connected to the bearing plate 501 through a push connecting rod 506, so that the displacement push rod 505 can drive the push connecting rod 506 to move, and the push connecting rod 506 can drive the bearing plate 501 to move horizontally, so as to push the bearing plate 501 out of the test box 100, which is convenient for loading the bellows A. A fine-tuning support member for fine-tuning the position of the bellows A is arranged on the upper end of the bearing plate 501, and the position of the bellows A can be quickly adjusted by the fine-tuning support member; The fine-tuning support member includes a support slide 502 symmetrically arranged on the carrier plate 501, the support slide 502 and the carrier plate 501 are slidably arranged, a transmission screw hole is arranged in the middle position of the two support slides 502, and a fine-tuning screw 509 is matched in the two transmission screw holes, the fine-tuning screw 509 is provided with a threaded area matching the two support slides 502, and the thread rotation directions of the two threaded areas are opposite, one end of the fine-tuning screw 509 is connected to the output end of the fine-tuning motor 508, and the other end of the fine-tuning screw 509 is rotatably connected to the fixed block on the carrier plate 501, and the fine-tuning motor 508 is fixed to the upper end of the carrier plate 501. Fixed connection, the upper ends of the two support slides 502 are provided with a plurality of triangular support blocks 507, and the two rows of triangular support blocks 507 constitute a V-shaped support surface for supporting the bellows A. Since the bellows A is a cylindrical structure, the V-shaped support surface here can quickly adjust the centering of the bellows A. When the height of the bellows A needs to be adjusted, it is only necessary to drive the fine-tuning screw 509 and the support slide 502 to rotate relative to each other through the fine-tuning motor 508. Under the action of the thread, the two support slides 502 are relatively close to or away from each other, thereby adjusting the support height of the bellows A, which is convenient for the later plugging operation, so that bellows with different diameters can be adjusted; The guide member includes at least two displacement sleeves 504 connected to the test box 100, and a displacement slide rod 503 connected to a bearing plate 501 is slidably provided on the displacement sleeve 504, so that the bearing plate 501 can slide horizontally and smoothly; The perspective door assembly includes a sliding opening arranged on the front side of the test box 100, and a movable door 101 is slidably matched at the sliding opening. The movable door 101 is provided with an observation window 102 for easy observation. In this way, when testing, the movable door 101 needs to be closed, and the test status can be observed through the observation window 102. The observation window 102 here is tempered glass.

[0030] Working principle: when in use, first obtain the bellows A of the target length, and then place the bellows A on the bearing component 500. Since the bellows A is a cylindrical structure, the V-shaped support surface here can quickly adjust the center of the bellows A. When the height of the bellows A needs to be adjusted, it is only necessary to drive the fine-tuning screw 509 and the support slide 502 to rotate relative to each other through the fine-tuning motor 508. Under the action of the thread, the two support slides 502 are relatively close or far away, thereby adjusting the support height of the bellows A, which is convenient for the subsequent plugging operation. In this way, the bellows of different diameters can be adjusted, and then the bellows A is transferred to the inside of the test box 100, and the perspective door group is closed; The threaded rod 405 is driven to rotate by the feed motor 411, and the threaded rod 405 matches the threaded block 404, so that the threaded block 404 slides along the transverse crossbar 406. When the threaded block 404 slides, the feed slider 401 can be driven to move a fixed distance toward the corrugated tube A through the limit traction member. An inflatable member corresponding to the extrusion vertical plate 410 for inflating the expansion component 300 is provided below the transverse crossbar 406; Through the sealing of the end of the bellows A of the inflatable member, when the threaded block 404 moves horizontally, the squeezing vertical plate 410 at the lower end of the threaded block 404 will generate thrust on the piston push plate 316, so that the piston plate 318 squeezes the air inside the piston cylinder 312, so that the gas enters the vertical suspension rod 306 along the exhaust cylinder 317 and the air guide hose 319, so as to inflate the expansion component 300, and the gas enters the cache ring box 305 along the vertical suspension rod 306, and then enters the storage ring groove 311 along the cache ring box 305 and the air guide channel 307, so that the expansion rubber ring 308 expands, so as to achieve inflation and sealing; Liquid or gas can be fed into the bellows A through the feeding unit. A pressure gauge is also provided on the first pipeline 201 to detect the pressure value, which is convenient for controlling the amount of material being rushed and can also test the ultimate pressure bearing capacity of the bellows A. The liquid or gas is then collected through the collecting unit.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A polytetrafluoroethylene bellows performance testing device, comprising a test box (100), wherein a perspective door group is provided on the outside of the test box (100), characterized in that: The test box (100) is provided with a bearing component (500) for supporting the bellows A. The position of the bellows A is transferred by the bearing component (500) so as to quickly adjust the position of the bellows A. The test box (100) is provided with two symmetrically arranged expansion components (300). The two ends of the bellows A are blocked by the expansion components (300). The expansion components (300) are connected to a filling component for filling the bellows A with gas or liquid.

2. The polytetrafluoroethylene bellows performance detection device according to claim 1, characterized in that: The expansion component (300) comprises a plugging tube (310), a conical head (309) is provided at the end of the plugging tube (310), a discharge port is provided at the end of the conical head (309), a connection port for docking with the filling component is provided at the tail of the plugging tube (310), a receiving ring groove (311) is provided on the outer side of the plugging tube (310) close to the conical head (309), an expansion rubber ring (308) is provided at the position of the receiving ring groove (311), and the plugging tube (310) is provided with a plurality of expansion rubber rings (308). 10) A buffer ring box (305) is provided for rotation on the outside, and the buffer ring box (305) is connected to the storage ring groove (311) through multiple air guide channels (307). The outside of the buffer ring box (305) is connected to a vertical suspension rod (306), and an air channel is provided inside the vertical suspension rod (306). The vertical suspension rod (306) is connected to a feed drive component (400) for driving it to move closer to or away from the bellows A. The blocking tube (310) is also connected to a flip drive component for driving it to rotate.

3. The polytetrafluoroethylene bellows performance detection device according to claim 2, characterized in that: The flip driving member comprises an adjusting bracket (304) fixedly connected to the vertical suspension rod (306); an adjusting motor (302) is fixedly provided on the adjusting bracket (304); an adjusting worm (303) is provided at the output end of the adjusting motor (302); the adjusting worm (303) is rotatably connected to the adjusting bracket (304); an adjusting worm wheel (301) is provided on the outer side of the blocking cannula (310); the adjusting worm wheel (301) and the adjusting worm wheel (303) are meshed with each other.

4. The polytetrafluoroethylene bellows performance detection device according to claim 2, characterized in that: The feed drive component (400) comprises two feed sliders (401), the two feed sliders (401) are slidably arranged on a transverse crossbar (406), both ends of the transverse crossbar (406) are fixedly connected to the inner wall of the test box (100), the lower end of the feed slider (401) is connected to the vertical suspension rod (306), two threaded blocks (404) are arranged between the two feed sliders (401), the two threaded blocks (404) are threadedly arranged on a threaded rod (405), one end of the threaded rod (405) is rotatably connected to the inner wall of the test box (100), and the threaded rod (405) is connected to the inner wall of the test box (100). 05) and the other end is connected to a feed motor (411) for driving the feed motor to rotate. The feed motor (411) is fixedly mounted on the outside of the test box (100). An extrusion vertical plate (410) is provided at the lower end of each threaded block (404). A threaded area matching the two threaded blocks (404) is provided on the threaded rod (405). The two threaded areas have opposite rotation directions. A limiting traction member is provided between the feed slider (401) and the threaded block (404). An inflatable member corresponding to the extrusion vertical plate (410) for inflating the expansion member (300) is provided below the transverse crossbar (406).

5. The polytetrafluoroethylene bellows performance detection device according to claim 4, characterized in that: The inflatable member comprises a horizontally arranged piston cylinder (312), the outer side of the piston cylinder (312) being connected and fixed to the inner wall of the test box (100) via a positioning frame rod (314), a piston plate (318) being slidably provided at each end of the piston cylinder (312), the outer end of the piston plate (318) being connected to the piston rod, a positioning sleeve (313) being fixedly provided at the end of the piston cylinder (312), the positioning sleeve (313) being provided with a through hole for slidingly cooperating with the piston rod, a piston push plate (316) being provided at the outer end of the piston rod, the piston push plate (316) being connected to the positioning sleeve (313) via a piston return spring (315), an exhaust cylinder (317) being connected to the middle position of the lower side of the piston cylinder (312), and the exhaust cylinder (317) being connected to the vertical suspension rod (306) via an air guide hose (319).

6. The polytetrafluoroethylene bellows performance detection device according to claim 4, characterized in that: The limiting traction member comprises a first traction block (407) arranged on the outside of the feed slider (401); a second traction block (409) is arranged on the outside of the threaded block (404); the second traction block (409) and the first traction block (407) are connected via an elastic traction rope (408); the feed slider (401) is provided with an avoidance notch (402) for facilitating the threaded rod (405) to pass through; the transverse crossbar (406) is provided with a limiting block (412) for limiting the travel of the feed slider (401); and a return spring (403) is arranged between the limiting block (412) and the feed slider (401).

7. The polytetrafluoroethylene bellows performance detection device according to claim 1, characterized in that: The filling component comprises a first pipe (201) rotatably arranged at the outer end of the blocking insert (310), a second pipe (202) being slidably arranged at the end of the first pipe (201), a sealing ring being arranged between the second pipe (202) and the first pipe (201), one of the second pipes (202) being connected to a feeding unit for feeding material into the bellows A, and the other second pipe (202) being connected to a receiving unit for recovering liquid or gas in the bellows A.

8. The polytetrafluoroethylene bellows performance detection device according to claim 1, characterized in that: The bearing component (500) comprises a horizontally arranged bearing plate (501), a guide member is provided between the bearing plate (501) and the test box (100), a displacement push rod (505) is installed on the test box (100), an output end of the displacement push rod (505) is connected to the bearing plate (501) via a push connecting rod (506), and a fine-tuning support member for fine-tuning the position of the bellows A is provided at the upper end of the bearing plate (501).

9. The polytetrafluoroethylene bellows performance detection device according to claim 8, characterized in that: The fine-tuning support member comprises a support slide (502) symmetrically arranged on a bearing plate (501), the support slide (502) and the bearing plate (501) being slidably arranged, a transmission screw hole being arranged in the middle of the two support slides (502), a fine-tuning screw rod (509) being arranged in cooperation with the two transmission screw holes, the fine-tuning screw rod (509) being provided with a threaded area matching the two support slides (502), the threaded directions of the two threaded areas being opposite, one end of the fine-tuning screw rod (509) being connected to an output end of a fine-tuning motor (508), the other end of the fine-tuning screw rod (509) being rotatably connected to a fixed block on the bearing plate (501), the fine-tuning motor (508) being fixedly connected to an upper end of the bearing plate (501), a plurality of triangular support blocks (507) being arranged at the upper ends of the two support slides (502), and two rows of triangular support blocks (507) forming a V-shaped support surface for supporting the corrugated pipe A.

10. The polytetrafluoroethylene bellows performance detection device according to claim 1, characterized in that: The perspective door assembly comprises a sliding opening arranged on the front of the test box (100), a movable door (101) slidably matched at the sliding opening, an observation window (102) for easy observation being provided on the movable door (101), and the observation window (102) is made of tempered glass.

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