Hose aging detection structure for oiling machine verification

Abstract

The invention relates to the technical field of oiling machine verification, in particular to a hose aging detection structure for oiling machine verification, which comprises a base, a fixing frame is bolted to the top of the base, a hose main body penetrates through the interior of the fixing frame, and fixing plates are bolted to both sides of the front side of the fixing frame. A lead screw is rotationally connected between the opposite sides of the two fixing plates, the surface of the lead screw is in threaded connection with a threaded block, a detection mechanism is arranged in the fixing frame, and the hose body is located in the detection mechanism. The invention provides a hose aging detection structure for oiling machine verification, which can detect the flexibility and the performance of an oiling machine hose under pressure fluctuation at the same time, realizes comprehensive evaluation of the aging condition of the hose, and compared with a single performance detection method in the prior art, the hose aging detection structure has the advantages that the reliability is high; and the aging degree of the hose can be reflected more comprehensively and accurately.

Description

Technical Field

[0001] The invention relates to the technical field of fuel dispenser calibration, and in particular to a hose aging detection structure for fuel dispenser calibration. Background Art

[0002] As we all know, in the daily operation of gas stations, the fuel dispenser hose is a key component for oil transportation. Its aging degree is directly related to the normal transportation of oil and the safe operation of gas stations. Therefore, it is very important to conduct accurate and efficient aging detection of the fuel dispenser hose.

[0003] At present, there are many defects in the common fuel dispenser hose aging detection technology. Some tests only test a single performance of the hose, such as only testing the hose's pressure resistance, while ignoring other important indicators such as flexibility, and cannot make a comprehensive assessment of the overall aging condition of the hose. For some methods that use non-destructive testing technology, such as ultrasonic testing and infrared thermal imaging testing, although internal defects can be detected, the equipment is expensive, the operation is complicated, and the requirements for the testing environment are high. It is difficult to promote and apply them in some small gas stations or places with limited testing conditions. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a hose aging detection structure for fuel dispenser calibration, which can simultaneously detect the flexibility and performance of the fuel dispenser hose under pressure fluctuations, thereby achieving a comprehensive evaluation of the hose aging condition. Compared with the single performance detection method in the prior art, it has the advantage of being able to more comprehensively and accurately reflect the degree of hose aging.

[0006] (II) Technical solution

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: A hose aging detection structure for fuel dispenser calibration, comprising a base, a fixing frame bolted to the top of the base, a hose body penetrating the inside of the fixing frame, fixing plates bolted to both sides of the front side of the fixing frame, a screw rod rotatably connected between the opposite sides of the two fixing plates, a screw block threadedly connected to the surface of the screw rod, a detection mechanism disposed inside the fixing frame, and the hose body is inside the detection mechanism;

[0008] The detection mechanism includes a positioning frame, which is bolted to the inside of a fixing frame. A flexibility detection component is arranged inside the positioning frame, and the flexibility detection component is sleeved on the surface of a hose body. An electric push rod is bolted to the front side of the flexibility detection component, and the front side of the electric push rod extends to the outside of the positioning frame and is bolted to a screw block. A moving contact is bolted to the rear side of the flexibility detection component, and a plurality of static contacts are arranged on the right side of an inner wall of the positioning frame. The static contacts are used in conjunction with the moving contacts. A pressure fluctuation component is bolted to the right side of the fixing frame, and one end of the pressure fluctuation component is connected to the hose body.

[0009] By adopting the above technical scheme, through setting up a detection mechanism, and through the coordinated use of the pressure fluctuation component and the flexibility detection component, the flexibility of the fuel dispenser hose body and the performance under pressure fluctuation can be tested at the same time, thereby realizing a comprehensive evaluation of the aging condition of the hose body. Compared with the single performance detection method in the prior art, it can more comprehensively and accurately reflect the aging degree of the hose body, and provide a more scientific basis for the replacement and maintenance of the hose body. In addition, the detection process can simultaneously perform detection of multiple indicators, which greatly improves the detection efficiency and saves detection time and labor costs.

[0010] The present invention is further configured as follows: the flexibility detection component includes a ring, the ring is sleeved on the surface of the hose body, and the front side of the ring is bolted to the electric push rod, push rings are provided on both sides of the ring, and the inner wall of the push ring is in contact with the inner wall of the hose body, a pressure sensor is bolted to the front side of the inner wall of the push ring, the surface of the push ring is bolted with a connecting frame in an annular shape, and the connecting frame is bolted to the side close to the ring, the inside of the ring is bolted with a marking part in an annular shape, and the marking part is used in conjunction with the hose body.

[0011] By adopting the above technical solution, by setting up a flexibility detection component, the ring can be driven to move by the electric push rod, and the pushing rings on both sides of the ring move on the surface of the hose body and exert force. At the same time, the pressure sensor on the inner wall of the pushing ring can monitor the pressure change during the pushing process in real time, by measuring the pressure required to push the hose body to bend. Since the flexibility of the aging hose body decreases, greater pressure is required when pushing. The aging of the hose body is evaluated according to the change in pressure. In this way, the flexibility of the hose body in different positions and different forces can be fully detected, avoiding the problem of only focusing on a single performance and ignoring flexibility detection in the prior art, and more accurately reflecting the flexibility change of the hose body due to aging. In addition, when the bending position is changed, when the hose body leaks, the marking part can mark the leakage position, which is convenient for intuitively understanding the leakage location of the hose body.

[0012] The present invention is further configured as follows: a guide rod is bolted to the rear side between the two opposite sides of the two fixing plates, and a sliding block is sleeved on the surface of the guide rod, and the top of the sliding block is bolted to the electric push rod.

[0013] By adopting the above technical solution, the movement direction of the electric push rod is limited through the cooperation of the guide rod and the slider, thereby avoiding the electric push rod from deflecting or shaking during movement, so that the flexibility detection component can move more stably and accurately on the surface of the hose body, thereby improving the accuracy of flexibility detection.

[0014] The present invention is further configured as follows: an adjustment plate is provided on the rear side of the inner wall of the positioning frame, and the static contacts are respectively bolted to the middle and both sides of the front side of the adjustment plate, the rear side of the adjustment plate is rotatably connected with an adjustment bolt, the rear side of the adjustment bolt extends to the outside of the positioning frame, and the adjustment bolt is threadedly connected to the positioning frame.

[0015] By adopting the above technical scheme, the coordination position of the moving contact and the static contact may be different for fuel dispenser hose bodies of different specifications and hose bodies of different degrees of aging during the flexibility test. By adjusting the position of the static contact, it can be flexibly adjusted according to actual testing needs, so that the detection structure can adapt to various types of hose body detection, thereby improving the versatility of the equipment.

[0016] The present invention is further configured as follows: the marking portion includes an arc-shaped plate, which is arranged in an annular shape inside the ring, a fixed cylinder is passed through the interior of the arc-shaped plate, and the fixed cylinder is bolted to the inner wall of the ring on one side, a moving rod is slidably arranged inside the fixed cylinder, and a pressure plate is bolted to one side of the moving rod, a sponge ring is provided on the side of the pressure plate away from the moving rod, a piston plate is bolted to the side of the moving rod close to the inner wall of the fixed cylinder, a first return spring is sleeved on the surface of the moving rod, and the first return spring is respectively connected to the piston plate and the inner wall of the fixed cylinder on one side, both sides of the arc plate close to the inner wall of the ring are bolted to pushing members, and the pushing members are used in conjunction with the fixed cylinder.

[0017] By adopting the above technical solution and setting the marking part, when the ring moves to the leakage part of the hose main body, the high-pressure gas filled in the hose main body will be discharged from the leakage part. Therefore, under the action of the gas pressure, the arc plate will be pushed to move on the surface of the fixed cylinder and the pushing member will contract, so that the moving rod in the fixed cylinder can be moved out of the interior of the fixed cylinder and the pressure plate and the sponge ring can be brought into contact with the hose main body. Since liquid pigment is pre-stored in the sponge ring, the leakage part will be marked with the liquid pigment under the action of pressure, which is convenient for intuitively understanding the leakage part of the hose main body.

[0018] The present invention is further configured as follows: the pushing member includes a movable rod, the side of the movable rod close to the arc plate is bolted to the arc plate, the surface of the movable rod is slidably sleeved with an outer cylinder, the side of the outer cylinder close to the inner wall of the ring is connected to it, the side of the outer cylinder close to the fixed cylinder is connected to a connecting pipe, and the side of the connecting pipe close to the fixed cylinder is connected to it, a second return spring is provided on one side of the movable rod, and the side of the second return spring close to the inner wall of the outer cylinder is connected to it, and oil is filled between the movable rod and the inner wall of the outer cylinder.

[0019] By adopting the above technical solution, a pushing member is set. When the arc plate moves, it will push the movable rod to slide in the outer cylinder and compress the second return spring, while squeezing the oil. The oil transmits pressure to the fixed cylinder through the connecting pipe, pushing the piston plate and the movable rod to move, thereby realizing the marking action. When the resistance disappears, the elastic force of the second return spring resets the movable rod and releases the squeezing of the oil. Therefore, the first return spring overcomes the pressure of the oil and pushes the oil back to the inside of the outer cylinder, thereby resetting the marking part and facilitating the next marking work.

[0020] The present invention is further configured as follows: the pressure fluctuation component includes a fixed shell, the fixed shell is arranged on the right side of the fixed frame, a silicone tube is arranged on the top of the interior of the fixed shell, one side of the silicone tube is connected to the hose body, a fixed shaft is rotatably connected inside the fixed shell, and positioning plates are welded on the front and rear sides of the surface of the fixed shaft, a plurality of rollers are rotatably connected between the opposite sides of the two positioning plates, and the rollers are used in conjunction with the silicone tube, a connecting shaft is bolted to the front side of the fixed shaft, and the front side of the connecting shaft extends to the outside of the fixed shell.

[0021] By adopting the above technical solution, a pressure fluctuation component is set up. When the screw rotates, the connecting shaft will be driven to rotate synchronously. The connecting shaft drives the fixed shaft to rotate, and the roller on the fixed shaft rotates accordingly and squeezes the silicone tube. After the silicone tube is squeezed, the internal pressure will change. This pressure change is transmitted to the hose body connected to it through the silicone tube, simulating the pressure fluctuation that the hose body is subjected to when the fuel dispenser is working, so that the test results are more in line with the actual use scenarios, and the aging condition of the hose body under dynamic pressure can be detected more accurately, avoiding the limitations of some existing detection methods that only focus on static performance.

[0022] The present invention is further configured as follows: an arc-shaped groove is arranged on the top of the inner wall of the fixed shell, the silicone tube is located inside the arc-shaped groove, and the middle part of the silicone tube is arranged to bulge upward in an arc shape.

[0023] By adopting the above technical scheme, the special design of the arc groove and the silicone tube ensures that the pressure fluctuation generated in the silicone tube during the roller extrusion process is more stable and regular, avoiding the randomness and instability of the pressure fluctuation and improving the accuracy and reliability of pressure fluctuation detection.

[0024] The present invention is further configured as follows: a protective shell is bolted to the right side of the right fixing plate, a shaft is bolted to the right side of the screw rod, and the right side of the shaft rod extends to the interior of the protective shell and is provided with a first bevel gear, the front side of the connecting shaft extends to the interior of the protective shell and is provided with a second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0025] By adopting the above technical solution, when the screw rotates, the shaft rotates accordingly, and through the transmission of the first bevel gear and the second bevel gear, the connecting shaft is driven to rotate. The rotation of the connecting shaft then drives the fixed shaft in the pressure fluctuation component to rotate, so that the roller squeezes the silicone tube to produce pressure fluctuations, thereby realizing the power linkage between the flexibility detection component and the pressure fluctuation component, so that while the flexibility of the hose body is being tested, the pressure fluctuation test can be carried out simultaneously, thereby improving the detection efficiency and reducing the detection time.

[0026] The present invention is further configured as follows: two fixed blocks are bolted on both sides of the fixed frame, the fixed shell is bolted between the right sides of the two fixed blocks on the right side, a fixed card block and a sliding card block are bolted on opposite sides of the two fixed blocks, and the inner walls of the fixed card block and the sliding card block are in close contact with the surface of the hose body, an electric cylinder is bolted on the rear side of the sliding card block, and the rear side of the electric cylinder extends to the outside of the rear fixed block.

[0027] By adopting the above technical solution, the movement of the sliding block is controlled by the electric cylinder, so the installation and disassembly of the hose body can be conveniently and quickly realized, which reduces the preparation time before detection and the cleaning time after detection, and improves the efficiency of the detection work. In addition, the fixed block and the sliding block can tightly clamp the hose body to ensure the stable position of the hose body during the detection process, avoiding the accuracy of the detection result being affected by the shaking or displacement of the hose body. At the same time, this clamping method can also prevent the hose body from leaking during the pressure fluctuation detection process.

[0028] (III) Beneficial effects

[0029] Compared with the prior art, the present invention provides a hose aging detection structure for fuel dispenser calibration, which has the following beneficial effects:

[0030] The hose aging detection structure for fuel dispenser calibration, by setting up a detection mechanism and using a pressure fluctuation component in conjunction with a flexibility detection component, can simultaneously detect the flexibility of the fuel dispenser hose and its performance under pressure fluctuations, thereby achieving a comprehensive evaluation of the hose aging condition. Compared with a single performance detection method in the prior art, it can more comprehensively and accurately reflect the degree of hose aging, providing a more scientific basis for hose replacement and maintenance, and the detection process can simultaneously detect multiple indicators, thereby greatly improving detection efficiency and saving detection time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the connection between the flexibility detection component, the positioning frame and the hose body in the present invention;

[0033] Figure 3 is a schematic diagram of the flexibility detection component structure of the present invention;

[0034] Figure 4 It is a schematic diagram of the structure of the marking part in the present invention;

[0035] Figure 5 is a schematic diagram of the pusher structure in the present invention;

[0036] Figure 6 It is a connection diagram of the adjustment plate and the positioning frame in the present invention;

[0037] Figure 7 It is a schematic diagram of the connection between the pressure fluctuation component and the hose body in the present invention;

[0038] Figure 8 It is a connection schematic diagram of the screw rod and the connecting shaft in the present invention.

[0039] In the figure: 1, base; 2, detection mechanism; 3, positioning frame; 4, flexibility detection assembly; 41, collar; 42, push ring; 43, pressure sensor; 44, connecting frame; 45, marking part; 451, arc plate; 452, fixed cylinder; 453, moving rod; 454, pressure plate; 455, sponge ring; 456, piston plate; 457, first return spring; 458, push member; 4581, movable rod; 4582, outer cylinder; 4583, connecting pipe; 4584, second return spring; 5, electric push rod; 6, Moving contact; 7. Static contact; 8. Pressure fluctuation component; 81. Fixed shell; 82. Silicone tube; 83. Fixed shaft; 84. Positioning plate; 85. Roller; 86. Connecting shaft; 9. Fixed frame; 10. Hose body; 11. Fixed plate; 12. Screw rod; 13. Screw block; 14. Guide rod; 15. Slider; 16. Adjustment plate; 17. Adjustment bolt; 18. Protective shell; 19. Shaft; 20. First bevel gear; 21. Second bevel gear; 22. Fixed block; 23. Fixed clamp block; 24. Sliding clamp block; 25. Electric cylinder. DETAILED DESCRIPTION

[0040] 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.

[0041] Example 1: Please refer to Figure 1-6 A hose aging detection structure for fuel dispenser calibration includes a base 1, a fixing frame 9 is bolted to the top of the base 1, and a hose body 10 is penetrated inside the fixing frame 9, fixing plates 11 are bolted to both sides of the front side of the fixing frame 9, a screw rod 12 is rotatably connected between the opposite sides of the two fixing plates 11, and a screw block 13 is threadedly connected to the surface of the screw rod 12, a detection mechanism 2 is arranged inside the fixing frame 9, and the hose body 10 is inside the detection mechanism 2;

[0042] The detection mechanism 2 includes a positioning frame 3, the positioning frame 3 is bolted to the inside of the fixing frame 9, a flexibility detection component 4 is arranged inside the positioning frame 3, the flexibility detection component 4 is sleeved on the surface of the hose body 10, and the front side of the flexibility detection component 4 is bolted to an electric push rod 5, the front side of the electric push rod 5 extends to the outside of the positioning frame 3 and is bolted to the screw block 13, the rear side of the flexibility detection component 4 is bolted to a moving contact 6, and a plurality of static contacts 7 are arranged on the right side of the inner wall of the positioning frame 3, the static contact 7 is used in conjunction with the moving contact 6, a pressure fluctuation component 8 is bolted to the right side of the fixing frame 9, and one end of the pressure fluctuation component 8 is connected to the hose body 10. The pipe body 10 is connected. By setting up the detection mechanism 2 and using the pressure fluctuation component 8 in conjunction with the flexibility detection component 4, the flexibility of the fuel dispenser hose body 10 and its performance under pressure fluctuation can be detected at the same time, thereby realizing a comprehensive evaluation of the aging condition of the hose body 10. Compared with the single performance detection method in the prior art, it can more comprehensively and accurately reflect the aging degree of the hose body 10, providing a more scientific basis for the replacement and maintenance of the hose body 10, and the detection process can simultaneously detect multiple indicators, thereby greatly improving the detection efficiency and saving detection time and labor costs.

[0043] Among them, the flexibility detection component 4 includes a ring 41, which is sleeved on the surface of the hose body 10, and the front side of the ring 41 is bolted to the electric push rod 5, and push rings 42 are arranged on both sides of the ring 41, and the inner wall of the push ring 42 contacts the inner wall of the hose body 10, and the front side of the inner wall of the push ring 42 is bolted to a pressure sensor 43, and the surface of the push ring 42 is bolted with a connecting frame 44 in an annular shape, and the connecting frame 44 is bolted to the side close to the ring 41, and the inside of the ring 41 is bolted with a marking part 45 in an annular shape, and the marking part 45 is used in conjunction with the hose body 10. By setting the flexibility detection component 4, the ring 41 can be driven to move by the electric push rod 5, and the push rings 42 on both sides of the ring 41 move on the surface of the hose body 10 and apply a force. At the same time, the pressure sensor 43 on the inner wall of the push ring 42 can monitor the pressure changes during the pushing process in real time, by measuring the pressure required to push the hose body 10 to bend. Since the flexibility of the aged hose body 10 decreases, greater pressure is required for pushing. The aging of the hose body 10 is evaluated according to the change in pressure. In this way, the flexibility of the hose body 10 at different positions and different forces can be fully detected, avoiding the problem of only focusing on a single performance and ignoring flexibility detection in the prior art, and more accurately reflecting the change in flexibility of the hose body 10 caused by aging. In addition, when the hose body 10 leaks during the process of changing the bending position, the marking part 45 can mark the leakage position, which is convenient for intuitively understanding the leakage location of the hose body 10.

[0044] Among them, a guide rod 14 is bolted to the rear side between the opposite sides of the two fixed plates 11, and a slider 15 is sleeved on the surface of the guide rod 14, and the top of the slider 15 is bolted to the electric push rod 5. Through the cooperation of the guide rod 14 and the slider 15, the movement direction of the electric push rod 5 is limited, and the electric push rod 5 is prevented from deflecting or shaking during the movement, so that the flexibility detection component 4 can move on the surface of the hose body 10 more stably and accurately, thereby improving the accuracy of flexibility detection.

[0045] Among them, an adjustment plate 16 is provided on the rear side of the inner wall of the positioning frame 3, and the static contact 7 is bolted to the middle and both sides of the front side of the adjustment plate 16 respectively, and the rear side of the adjustment plate 16 is rotatably connected with an adjusting bolt 17, the rear side of the adjusting bolt 17 extends to the outside of the positioning frame 3, and the adjusting bolt 17 is threadedly connected to the positioning frame 3. The matching positions of the moving contact 6 and the static contact 7 may be different during the flexibility test for fuel dispenser hose bodies 10 of different specifications and hose bodies 10 of different aging degrees. By adjusting the position of the static contact 7, it can be flexibly adjusted according to actual detection needs, so that the detection structure can adapt to the detection of various types of hose bodies 10, thereby improving the versatility of the equipment.

[0046] The marking portion 45 comprises an arc plate 451, which is arranged in an annular shape inside the collar 41, a fixed cylinder 452 is passed through the interior of the arc plate 451, and the fixed cylinder 452 is bolted to the inner wall of the collar 41 on one side, a moving rod 453 is slidably arranged inside the fixed cylinder 452, and a pressure plate 454 is bolted to one side of the moving rod 453, a sponge ring 455 is arranged on the side of the pressure plate 454 away from the moving rod 453, a piston plate 456 is bolted to the one side of the moving rod 453 close to the inner wall of the fixed cylinder 452, a first return spring 457 is sleeved on the surface of the moving rod 453, and the first return spring 457 is connected to the piston plate 456 and the inner wall of the fixed cylinder 452 on one side respectively, the arc plate 451 close to the collar 4 Both sides of one side of the inner wall are bolted with pushers 458, and the pushers 458 are used in conjunction with the fixed tube 452. By setting the marking part 45, when the collar 41 moves to the leaking part of the hose body 10, the high-pressure gas filled in the hose body 10 will be discharged from the leaking part. Therefore, under the action of the gas pressure, the arc plate 451 will be pushed to move on the surface of the fixed tube 452 and the pushers 458 will be contracted, so that the moving rod 453 in the fixed tube 452 can be moved out of the fixed tube 452 and the pressure plate 454 and the sponge ring 455 can be in contact with the hose body 10. Since the sponge ring 455 is pre-stored with liquid pigment, the liquid pigment will be used to mark the leaking part under the action of pressure, so that the leaking part of the hose body 10 can be intuitively understood.

[0047] The pusher 458 includes a movable rod 4581, the side of the movable rod 4581 close to the arc plate 451 is bolted thereto, the surface of the movable rod 4581 is slidably sleeved with an outer cylinder 4582, the side of the outer cylinder 4582 close to the inner wall of the sleeve ring 41 is connected thereto, the side of the outer cylinder 4582 close to the fixed cylinder 452 is connected to a connecting pipe 4583, and the side of the connecting pipe 4583 close to the fixed cylinder 452 is connected thereto, a second return spring 4584 is provided on one side of the movable rod 4581, and the side of the second return spring 4584 close to the inner wall of the outer cylinder 4582 is connected thereto, and an oil filling is provided between the movable rod 4581 and the inner wall of the outer cylinder 4582. Liquid is provided by setting a pushing member 458. When the arc plate 451 moves, it will push the movable rod 4581 to slide in the outer cylinder 4582, compress the second return spring 4584, and squeeze the oil at the same time. The oil transmits pressure to the fixed cylinder 452 through the connecting pipe 4583, pushing the piston plate 456 and the movable rod 453 to move, thereby realizing the marking action. When the resistance disappears, the elastic force of the second return spring 4584 resets the movable rod 4581 and releases the squeezing of the oil. Therefore, the first return spring 457 overcomes the pressure of the oil and pushes the oil back to the inside of the outer cylinder 4582, thereby realizing the resetting of the marking part 45, which is convenient for the next marking work.

[0048] The working principle of this embodiment is as follows: one end of the hose body 10 to be tested is passed through the left side of the fixing frame 9, the inside of the collar 41 and the push ring 42 in sequence and placed on the right side inside the fixing frame 9, and then one end of the hose body 10 is connected to the pressure fluctuation component 8, and the other end of the hose body 10 is closed, and then the pressure fluctuation component 8 is connected to the gas passing device to detect the sealing of the hose body 10, and then according to the specifications of the hose body 10 and the expected aging degree, the adjusting bolt 17 is rotated to drive the adjusting plate 16 to move, thereby adjusting the position of the static contact 7 on the right side of the inner wall of the positioning frame 3 to meet the requirements of this detection. During the detection, the screw rod 12 can be driven to rotate by an external driving device such as a motor. Since the screw block 13 is threadedly connected to the screw rod 12, the rotation of the screw rod 12 will drive the screw block 13 to move linearly along the screw rod 12. The movement of the screw block 13 drives the electric push rod 5 bolted thereto to move, which can change the detection position. The electric push rod 5 then pushes the collar 41 to move, so that the push ring 42 applies a force to the hose body 10. When the moving contact 6 contacts the static contact 7, the extension of the electric push rod 5 is stopped, and the pressure sensor 43 on the front side of the inner wall of the push ring 42 monitors the pressure changes during the pushing process in real time and transmits the pressure data. Under normal circumstances, the hose body 10 has good flexibility and requires less pressure when pushed; when the hose body 10 becomes less flexible due to aging, the resistance encountered by the pushing ring 42 increases, and the pressure value detected by the pressure sensor 43 increases accordingly. According to the change in the pressure value, the flexibility of the hose body 10 at different positions and different forces can be evaluated, and when the ring 41 moves to the leakage part of the hose body 10, the high-pressure gas in the hose body 10 is discharged from the leakage part, and the arc plate 451 is pushed to move under the action of the air pressure, and the movement of the arc plate 451 drives the movable rod 4581 to move. The outer cylinder 4582 slides, compressing the second return spring 4584, and at the same time squeezing the oil filled between the movable rod 4581 and the inner wall of the outer cylinder 4582. The oil transmits pressure to the fixed cylinder 452 through the connecting pipe 4583, pushing the piston plate 456 and the movable rod 453 to move, so that the pressure plate 454 and the sponge ring 455 are in contact with the hose body 10. Since liquid pigment is pre-stored in the sponge ring 455, the liquid pigment will mark the leakage part under the action of pressure, which is convenient for the operator to intuitively understand the leakage position of the hose body 10, and realize the synchronous detection of the flexibility of the hose body 10 and the leakage part.

[0049] Example 2: Reference Figure 7 and Figure 8A hose aging detection structure for fuel dispenser calibration also includes a pressure fluctuation component 8, wherein the pressure fluctuation component 8 includes a fixed shell 81, the fixed shell 81 is arranged on the right side of the fixed frame 9, a silicone tube 82 is arranged on the top of the fixed shell 81, one side of the silicone tube 82 is connected to the hose body 10, a fixed shaft 83 is rotatably connected inside the fixed shell 81, and a positioning plate 84 is welded on the front and rear sides of the surface of the fixed shaft 83, a plurality of rollers 85 are rotatably connected between the opposite sides of the two positioning plates 84, and the rollers 85 are used in conjunction with the silicone tube 82, a connecting shaft 86 is bolted to the front side of the fixed shaft 83, and the front side of the connecting shaft 86 extends to the fixed shell On the outside of 81, by setting a pressure fluctuation component 8, when the screw rod 12 rotates, it will synchronously drive the connecting shaft 86 to rotate, the connecting shaft 86 drives the fixed shaft 83 to rotate, and the roller 85 on the fixed shaft 83 rotates accordingly and squeezes the silicone tube 82. After the silicone tube 82 is squeezed, the internal pressure will change, and this pressure change is transmitted to the hose body 10 connected to it through the silicone tube 82, simulating the pressure fluctuation that the hose body 10 is subjected to when the fuel dispenser is working, so that the detection result is more in line with the actual use scenario, and the aging condition of the hose body 10 under dynamic pressure can be detected more accurately, avoiding the limitation that some existing detection methods only focus on static performance.

[0050] Among them, an arc groove is set at the top of the inner wall of the fixed shell 81, the silicone tube 82 is inside the arc groove, and the middle part of the silicone tube 82 is set to bulge upward in an arc shape. The special design of the arc groove and the silicone tube 82 ensures that during the extrusion process of the roller 85, the pressure fluctuation generated in the silicone tube 82 is more stable and regular, avoiding the randomness and instability of the pressure fluctuation, and improving the accuracy and reliability of pressure fluctuation detection.

[0051] Among them, the right side of the right fixed plate 11 is bolted with a protective shell 18, the right side of the screw rod 12 is bolted with a shaft rod 19, and the right side of the shaft rod 19 extends to the interior of the protective shell 18 and is provided with a first bevel gear 20, the front side of the connecting shaft 86 extends to the interior of the protective shell 18 and is provided with a second bevel gear 21, and the first bevel gear 20 is meshed with the second bevel gear 21. When the screw rod 12 rotates, the shaft rod 19 rotates accordingly, and the connection shaft 86 is driven to rotate through the transmission of the first bevel gear 20 and the second bevel gear 21. The rotation of the connecting shaft 86 then drives the fixed shaft 83 in the pressure fluctuation component 8 to rotate, so that the roller 85 squeezes the silicone tube 82 to generate pressure fluctuations, thereby realizing the power linkage of the flexibility detection component 4 and the pressure fluctuation component 8, so that while the flexibility of the hose body 10 is detected, the pressure fluctuation detection can be performed simultaneously, thereby improving the detection efficiency and reducing the detection time.

[0052] Among them, two fixing blocks 22 are bolted to both sides of the fixing frame 9, and the fixing shell 81 is bolted between the right sides of the two fixing blocks 22 on the right side. The opposite sides of the two fixing blocks 22 are bolted with a fixing block 23 and a sliding block 24 respectively, and the inner walls of the fixing block 23 and the sliding block 24 are in close contact with the surface of the hose body 10. The rear side of the sliding block 24 is bolted with an electric cylinder 25, and the rear side of the electric cylinder 25 extends to the outer side of the rear side fixing block 22. The movement of the sliding block 24 is controlled by the electric cylinder 25, so that the installation and disassembly of the hose body 10 can be conveniently and quickly realized, the preparation time before the detection and the cleaning time after the detection are reduced, and the efficiency of the detection work is improved. In addition, the fixing block 23 and the sliding block 24 can tightly clamp the hose body 10 to ensure that the position of the hose body 10 is stable during the detection process, and the accuracy of the detection result is not affected by the shaking or displacement of the hose body 10. At the same time, this clamping method can also prevent the hose body 10 from leaking during the pressure fluctuation detection process.

[0053] Working principle of this embodiment: while the flexibility test is being carried out, the shaft 19 on the right side of the screw rod 12 rotates accordingly, and the first bevel gear 20 on the right side of the shaft 19 meshes with the second bevel gear 21 on the front side of the connecting shaft 86. The transmission of the first bevel gear 20 and the second bevel gear 21 drives the connecting shaft 86 to rotate, and the rotation of the connecting shaft 86 drives the fixed shaft 83 to rotate in the fixed shell 81, and the positioning plates 84 on the front and rear sides of the surface of the fixed shaft 83 also rotate accordingly, and the rollers 85 connected in an annular rotation between the positioning plates 84 rotate together with the positioning plates 84, and squeeze the silicone tube 82 in the arc groove at the top of the inner wall of the fixed shell 81. Since the middle part of the silicone tube 82 is arc-shaped and convex upward The roller 85 is set up, and under the constraint of the arc groove, the squeezing of the roller 85 causes the pressure in the silicone tube 82 to change regularly. This pressure change is transmitted to the hose body 10 through the silicone tube 82 connected to the hose body 10, simulating the pressure fluctuation that the hose body 10 is subjected to when the fuel dispenser is working. Under the action of the pressure fluctuation, the performance of the hose body 10 in this dynamic pressure environment is observed, and the aging condition of the hose body 10 is comprehensively evaluated in combination with the flexibility data detected by the flexibility detection component 4. If the hose body 10 is abnormal during the pressure fluctuation, such as local bulging, leakage, etc., it means that the aging degree of the hose body 10 is relatively serious and needs to be replaced or repaired in time.

[0054] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to the present embodiment as needed. Although the embodiments of the present invention have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hose aging detection structure for fuel dispenser calibration, comprising a base (1), characterized in that: A fixing frame (9) is bolted to the top of the base (1), and a hose body (10) is passed through the fixing frame (9), fixing plates (11) are bolted to both sides of the front side of the fixing frame (9), a screw rod (12) is rotatably connected between opposite sides of the two fixing plates (11), and a screw block (13) is threadedly connected to the surface of the screw rod (12), a detection mechanism (2) is arranged inside the fixing frame (9), and the hose body (10) is located inside the detection mechanism (2); The detection mechanism (2) comprises a positioning frame (3), the positioning frame (3) is bolted to the inside of a fixing frame (9), a flexibility detection component (4) is arranged inside the positioning frame (3), the flexibility detection component (4) is sleeved on the surface of the hose body (10), and the front side of the flexibility detection component (4) is bolted to an electric push rod (5), the front side of the electric push rod (5) extends to the outside of the positioning frame (3) and is bolted to a screw block (13), the rear side of the flexibility detection component (4) is bolted to a moving contact (6), and a plurality of static contacts (7) are arranged on the right side of the inner wall of the positioning frame (3), the static contacts (7) are used in conjunction with the moving contacts (6), the right side of the fixing frame (9) is bolted to a pressure fluctuation component (8), and one end of the pressure fluctuation component (8) is connected to the hose body (10).

2. The hose aging detection structure for fuel dispenser calibration according to claim 1 is characterized by: The flexibility detection component (4) comprises a ring (41), the ring (41) is sleeved on the surface of the hose body (10), and the front side of the ring (41) is bolted to the electric push rod (5), both sides of the ring (41) are provided with push rings (42), and the inner wall of the push ring (42) contacts the inner wall of the hose body (10), the front side of the inner wall of the push ring (42) is bolted to a pressure sensor (43), the surface of the push ring (42) is bolted to a connecting frame (44) in an annular shape, and the connecting frame (44) is bolted to the ring (41) at one side thereof, and the inside of the ring (41) is bolted to a marking portion (45) in an annular shape, and the marking portion (45) is used in conjunction with the hose body (10).

3. The hose aging detection structure for fuel dispenser calibration according to claim 1 is characterized by: A guide rod (14) is bolted to the rear side between the two opposite sides of the two fixing plates (11), and a sliding block (15) is sleeved on the surface of the guide rod (14), and the top of the sliding block (15) is bolted to the electric push rod (5).

4. The hose aging detection structure for fuel dispenser calibration according to claim 1 is characterized by: An adjustment plate (16) is provided on the rear side of the inner wall of the positioning frame (3), and the static contacts (7) are respectively bolted to the middle and both sides of the front side of the adjustment plate (16). The rear side of the adjustment plate (16) is rotatably connected with an adjustment bolt (17), the rear side of the adjustment bolt (17) extends to the outside of the positioning frame (3), and the adjustment bolt (17) is threadedly connected to the positioning frame (3).

5. The hose aging detection structure for fuel dispenser calibration according to claim 2 is characterized by: The marking portion (45) comprises an arc-shaped plate (451) which is arranged in an annular shape inside the collar (41); a fixing tube (452) is passed through the interior of the arc-shaped plate (451); a side of the fixing tube (452) close to the inner wall of the collar (41) is bolted thereto; a moving rod (453) is slidably arranged inside the fixing tube (452); a pressure plate (454) is bolted to one side of the moving rod (453); a sponge ring is arranged on the side of the pressure plate (454) away from the moving rod (453) (455), a piston plate (456) is bolted to one side of the movable rod (453) close to the inner wall of the fixed cylinder (452), a first return spring (457) is sleeved on the surface of the movable rod (453), and the first return spring (457) is respectively connected to the piston plate (456) and the inner wall of the fixed cylinder (452) on one side close to both, and a pusher (458) is bolted to both sides of the arc plate (451) close to the inner wall of the ring (41), and the pusher (458) is used in conjunction with the fixed cylinder (452).

6. The hose aging detection structure for fuel dispenser calibration according to claim 5 is characterized by: The pushing member (458) includes a movable rod (4581), and the movable rod (4581) is bolted to the arc plate (451) on one side thereof; an outer tube (4582) is slidably sleeved on the surface of the movable rod (4581), and the outer tube (4582) is connected to the inner wall of the collar (41) on one side thereof; a connecting pipe (4583) is connected to the fixed cylinder (452) on one side thereof; and the connecting pipe (4583) is connected to the fixed cylinder (452) on one side thereof; a second return spring (4584) is provided on one side of the movable rod (4581), and the second return spring (4584) is connected to the inner wall of the outer cylinder (4582) on one side thereof; and oil is filled between the movable rod (4581) and the inner wall of the outer cylinder (4582).

7. The hose aging detection structure for fuel dispenser calibration according to claim 1 is characterized by: The pressure fluctuation component (8) comprises a fixed shell (81), the fixed shell (81) is arranged on the right side of the fixed frame (9), a silicone tube (82) is arranged on the top of the fixed shell (81), one side of the silicone tube (82) is connected to the hose body (10), a fixed shaft (83) is rotatably connected inside the fixed shell (81), and positioning plates (84) are welded on the front and rear sides of the surface of the fixed shaft (83), a plurality of rollers (85) are rotatably connected between the opposite sides of the two positioning plates (84), and the rollers (85) are used in conjunction with the silicone tube (82), and a connecting shaft (86) is bolted to the front side of the fixed shaft (83), and the front side of the connecting shaft (86) extends to the outside of the fixed shell (81).

8. The hose aging detection structure for fuel dispenser calibration according to claim 7 is characterized by: An arc-shaped groove is arranged at the top of the inner wall of the fixed shell (81), the silicone tube (82) is located inside the arc-shaped groove, and the middle part of the silicone tube (82) is arranged to bulge upward in an arc shape.

9. The hose aging detection structure for fuel dispenser calibration according to claim 7 is characterized by: The right side of the right fixing plate (11) is bolted with a protective shell (18), the right side of the screw rod (12) is bolted with a shaft rod (19), and the right side of the shaft rod (19) extends to the interior of the protective shell (18) and is provided with a first bevel gear (20), the front side of the connecting shaft (86) extends to the interior of the protective shell (18) and is provided with a second bevel gear (21), and the first bevel gear (20) is meshed with the second bevel gear (21).

10. The hose aging detection structure for fuel dispenser calibration according to claim 7, characterized in that: Two fixing blocks (22) are bolted to both sides of the fixing frame (9); the fixing shell (81) is bolted between the right sides of the two fixing blocks (22) on the right side; a fixing block (23) and a sliding block (24) are bolted to opposite sides of the two fixing blocks (22), respectively; and the inner walls of the fixing block (23) and the sliding block (24) are in close contact with the surface of the hose body (10); an electric cylinder (25) is bolted to the rear side of the sliding block (24), and the rear side of the electric cylinder (25) extends to the outer side of the rear fixing block (22).

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