Pipeline connection leakproofness detection system for hydraulic hoist

Abstract

The invention belongs to the technical field of pipeline connection leakproofness detection, and provides a hydraulic hoist pipeline connection leakproofness detection system, which comprises a base, the base is fixedly connected with a telescopic lifting seat, the lifting seat is fixedly connected with a fixed seat, the fixed seat is fixedly connected with a driving mechanism, and the driving mechanism is fixedly connected with the lifting seat. An upper sealing cover and a lower sealing cover are arranged at the upper end and the lower end of the driving mechanism respectively, the upper sealing cover and the lower sealing cover are oppositely arranged, the driving mechanism can drive the upper sealing cover and the lower sealing cover to vertically and oppositely move, and a first air pressure sensor is arranged in the upper sealing cover. According to the sealing device, the sealing sleeves at the two ends of the upper sealing cover and the two ends of the lower sealing cover make contact with each other, the sealing sleeves at the two ends of the upper sealing cover and the two ends of the lower sealing cover make tight contact with the hydraulic hoist pipeline, and the sealing performance between the upper sealing cover and the outer wall of the hydraulic hoist pipeline and between the lower sealing cover and the outer wall of the hydraulic hoist pipeline is improved through all the sealing sleeves.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline connection sealing detection, and in particular relates to a hydraulic hoist pipeline connection sealing detection system. Background Art

[0002] The hydraulic hoist is generally composed of a hydraulic system and a hydraulic cylinder. Under the control of the hydraulic system, the inner wall of the piston in the hydraulic cylinder makes axial reciprocating motion, thereby driving the connecting rod and the gate connected to the piston to make linear motion to achieve the purpose of opening and closing the orifice. The hydraulic system includes a power unit, a control and adjustment device, an auxiliary device, etc. The auxiliary device includes an oil tank, an oil pipe, a pipe joint, a pressure gauge, an oil filter, etc. The oil pipe and the pipe joint connect the power unit, the adjustment control device, and the hydraulic cylinder to form a complete hydraulic circuit. If the sealing of the hydraulic hoist pipeline connection is not sufficient, it will affect the size of the hydraulic pressure and cause oil leakage, which will not only cause pollution but also pose a safety hazard.

[0003] When the existing hydraulic gate hoist pipeline connection sealing detection system performs sealing detection on the pipeline, it usually performs sealing detection on the connecting flanges between the pipelines. Generally, a sealing device is used to seal the pipeline connection flanges, and then sufficient air pressure is applied to the connection flanges to check the sealing of the pipeline connection flanges. However, if the sealing device and the pipeline connection part are not sealed enough during the detection, the existing pipeline connection sealing detection system will affect the detection result, and the poor sealing position cannot be eliminated in time during the detection. Summary of the invention

[0004] The purpose of the present invention is to provide a hydraulic gate hoist pipeline connection sealing detection system, aiming to solve the technical problems in the prior art that if the sealing device and the pipeline connection part are not sufficiently sealed during detection, it will affect the detection result, and the poorly sealed position cannot be eliminated in time during detection.

[0005] The present invention is implemented as follows: a hydraulic gate hoist pipeline connection sealing detection system comprises a base, the base is fixedly connected to a retractable lifting seat, the lifting seat is fixedly connected to a fixed seat, the fixed seat is fixedly connected to a driving mechanism, the upper and lower ends of the driving mechanism are respectively provided with an upper cover and a lower cover, the upper cover and the lower cover are arranged oppositely, the driving mechanism can drive the upper cover and the lower cover to move vertically relative to each other, and a No. 1 air pressure sensor is arranged in the upper cover; The upper cover and the lower cover are both slidably connected with sealing sleeves at both horizontal ends, and an arc-shaped rubber pad is provided between one end of the sealing sleeve and the inner wall of the upper cover or the lower cover, and a tooth-shaped sealing block is provided on the horizontal side surface of the sealing sleeve; All sealing sleeves are provided with an isolation groove, a sealing ring is provided along the side of the isolation groove, and an adsorption mechanism capable of being adsorbed and fixed to the pipeline is provided in the isolation groove; the end surfaces of the upper cover and the lower cover that contact each other are respectively provided with a sealing strip and a clamping groove, and the sealing strip on the upper cover can mesh with the clamping groove on the lower cover; An air pump is fixedly arranged on the outer wall of the lower cover, and the air outlet of the air pump is communicated with the inner cavity of the lower cover. At the same time, the air outlet of the air pump is communicated with the sealing sleeves on both sides of the lower cover through a pipeline. A spray assembly is arranged on the upper cover, and the spray assembly can spray colored spray into the upper cover. A drainage mechanism is arranged in both the upper cover and the lower cover. When the upper cover contacts the lower cover, the drainage mechanism can drive the air flow between the upper cover and the lower cover. A stretching mechanism is fixed on both sides of the fixing seat, and the stretching mechanism can clamp the hydraulic gate hoist pipes on both sides of the upper cover and stretch the hydraulic gate hoist pipes on both sides of the upper cover horizontally to both sides; The control module can control the driving mechanism through the change of air pressure in the isolation groove during detection, thereby increasing the accuracy of the hydraulic gate hoist pipeline connection sealing detection.

[0006] Further technical solution: the driving mechanism includes a guide rail, a bidirectional screw and a No. 1 motor; The guide rail is fixedly connected to a fixing seat, a No. 1 motor is fixedly connected to the guide rail, a bidirectional screw is fixedly connected to an output shaft of the No. 1 motor, and the bidirectional screw is threadedly connected to a connecting seat on the upper cover and the lower cover.

[0007] Further technical solution: the adsorption mechanism includes an elastic telescopic sleeve and an arc-shaped suction cup, the fixed end of the elastic telescopic sleeve is fixedly connected to the outer wall of the sealing sleeve, and the telescopic end of the elastic telescopic sleeve is fixedly connected to the arc-shaped suction cup.

[0008] Further technical solution: the spray assembly includes a water tank and a water pump, the water tank is fixedly connected to the upper cover, and the water pump is connected between the water tank and the upper cover.

[0009] Further technical solution: the stretching mechanism includes a support frame, a No. 1 electric telescopic rod, a clamp and a No. 2 electric telescopic rod; The No. 2 electric telescopic rod is fixedly connected to the fixing seat, one end of the No. 2 electric telescopic rod is fixedly connected to the support frame, the upper and lower ends of the support frame are fixedly connected to the No. 1 electric telescopic rod, and one end of the No. 1 electric telescopic rod is fixedly connected to the clamp.

[0010] Further technical solution: the drainage mechanism includes a rotating shaft, an air guide plate, a suction pad and a second motor; The outer walls of the upper cover and the lower cover are fixedly connected with a No. 2 motor, the output shaft of the No. 2 motor is fixedly connected with a rotating shaft, the rotating shaft is fixedly connected with a plurality of air guide plates, the ends of the air guide plates are fixedly connected with suction pads, and one of the rotating shafts is arranged at the liquid outlet of the water pump.

[0011] A further technical solution: further comprising a lubrication mechanism, the lubrication mechanism comprising a baffle, a drainage groove and a spring; A baffle plate is vertically slidable and sealed in the slot, a spring is arranged between the baffle plate and the inner bottom surface of the slot, a drainage groove is opened on the side wall of the lower cover, the baffle plate seals the upper end opening of the drainage groove, a sealing airbag is arranged in the sealing strip, and lubricating oil is stored between the baffle plate and the slot.

[0012] Further technical solution: the control module includes a second air pressure sensor, a computer processor and a PLC controller; The No. 2 air pressure sensor is connected to the inner wall of the isolation groove, the No. 1 air pressure sensor, the No. 2 air pressure sensor and the PLC controller are all electrically connected to the computer processor, and the PLC controller is electrically connected to the driving mechanism.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The sealing sleeves at both ends of the upper cover and the lower cover are in contact with each other, and the sealing sleeves at both ends of the upper cover and the lower cover are in close contact with the hydraulic hoist pipe. The sealing between the upper cover and the lower cover and the outer wall of the hydraulic hoist pipe is improved through all the sealing sleeves; 2. The spray assembly sprays colored spray into the upper cover, so that when the sealing between the hydraulic hoist pipe connection flanges is poor, the colored water vapor in the air overflows along the gap between the hydraulic hoist pipe connection flanges; after the hydraulic hoist pipe connection flanges are separated, the leakage gap position between the hydraulic hoist pipe connection flanges can be determined by the color adhesion of the contact surface of the hydraulic hoist pipe connection flanges; 3. The drainage mechanism can drive the air flow between the upper cover and the lower cover to prevent the colored water vapor in the air from precipitating prematurely and adhering to the inner walls of the upper cover and the lower cover, which will affect the determination of the leakage gap position at the connection of the hydraulic hoist pipeline in the later stage; 4. When the air pressure value of the No. 1 pressure sensor and the air pressure value of the No. 2 pressure sensor are both lower than the preset pressure threshold value in the computer processor, it means that the upper cover and the lower cover are not closed tightly and the seal is not strict. At this time, the PLC controller controls the drive mechanism to start, and the drive mechanism drives the upper cover and the lower cover to continue to be pressed tightly to ensure the airtightness between the upper cover and the lower cover, thereby improving the accuracy of the hydraulic opening and closing machine pipeline connection sealing detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the driving mechanism in the present invention.

[0016] Figure 3 for Figure 2 A magnified schematic diagram of area A in the middle.

[0017] Figure 4 It is a schematic diagram of the structure of the spray assembly in the present invention.

[0018] Figure 5 It is a schematic structural diagram of the upper cover in the present invention.

[0019] Figure 6 for Figure 5 A magnified schematic diagram of area B.

[0020] Figure 7 It is a structural schematic diagram of the drainage mechanism in the present invention.

[0021] Figure 8 for Figure 7 Enlarged schematic diagram of area C in the middle.

[0022] In the attached drawings: 1. base; 2. lifting seat; 3. fixed seat; 4. driving mechanism; 41. guide rail; 42. bidirectional screw; 43. No. 1 motor; 5. adsorption mechanism; 51. elastic telescopic sleeve; 52. arc-shaped suction cup; 6. spray assembly; 61. water tank; 62. water pump; 7. stretching mechanism; 71. support frame; 72. No. 1 electric telescopic rod; 73. clamp; 74. No. 2 electric telescopic rod; 8. drainage mechanism; 81. rotating shaft; 82. air guide plate; 83. suction pad; 84. No. 2 motor; 9. lubrication mechanism; 91. baffle; 92. drainage groove; 93. spring; 10. sealing sleeve; 11. upper cover; 12. lower cover; 13. isolation groove; 14. sealing ring; 15. sealing strip; 16. sealing airbag; 17. slot; 18. toothed sealing block; 19. air pump; 20. arc-shaped rubber pad. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] like Figure 1-Figure 8As shown, a pipeline connection sealing detection system of a hydraulic gate hoist provided by the present invention comprises a base 1, the base 1 is fixedly connected with a retractable lifting seat 2, the lifting seat 2 is fixedly connected with a fixing seat 3, the fixing seat 3 is fixedly connected with a driving mechanism 4, the upper and lower ends of the driving mechanism 4 are respectively provided with an upper cover 11 and a lower cover 12, the upper cover 11 and the lower cover 12 are arranged oppositely, the driving mechanism 4 can drive the upper cover 11 and the lower cover 12 to move vertically relative to each other, and a No. 1 air pressure sensor is arranged in the upper cover 11; The upper cover 11 and the lower cover 12 are both slidably connected with sealing sleeves 10 at both horizontal ends, and an arc-shaped rubber pad 20 is provided between one end of the sealing sleeve 10 and the inner wall of the upper cover 11 or the lower cover 12, and tooth-shaped sealing blocks 18 are provided on the horizontal side surfaces of the sealing sleeve 10; All sealing sleeves 10 are provided with an isolation groove 13, and the isolation groove 13 is provided with a sealing ring 14 along the side, and the isolation groove 13 is provided with an adsorption mechanism 5 that can be adsorbed and fixed to the pipeline; the end surfaces of the upper cover 11 and the lower cover 12 that contact each other are respectively provided with a sealing strip 15 and a clamping groove 17, and the sealing strip 15 on the upper cover 11 can mesh with the clamping groove 17 on the lower cover 12; An air pump 19 is fixedly arranged on the outer wall of the lower cover 12, and the air outlet of the air pump 19 is communicated with the inner cavity of the lower cover 12, and the air outlet of the air pump 19 is communicated with the sealing sleeves 10 on both sides of the lower cover 12 through a pipeline. A spray assembly 6 is arranged on the upper cover 11, and the spray assembly 6 can spray colored spray into the upper cover 11. A drainage mechanism 8 is arranged in both the upper cover 11 and the lower cover 12. When the upper cover 11 contacts the lower cover 12, the drainage mechanism 8 can drive the air flow between the upper cover 11 and the lower cover 12; A stretching mechanism 7 is fixed on both sides of the fixing seat 3, and the stretching mechanism 7 can clamp the hydraulic hoist pipes on both sides of the upper cover 11 and stretch the hydraulic hoist pipes on both sides of the upper cover 11 horizontally to both sides; The control module can control the driving mechanism 4 through the air pressure change in the isolation groove 13 during detection, thereby increasing the accuracy of the hydraulic hoist pipeline connection sealing detection.

[0026] In this embodiment, the upper cover 11 and the lower cover 12 are respectively moved to the two sides of the hydraulic hoist pipeline connection part, and after adjusting the height of the lifting seat 2, the driving mechanism 4 is started, and the driving mechanism 4 drives the upper cover 11 and the lower cover 12 to move relative to each other, so that the upper cover 11 is in contact with the lower cover 12, and the upper cover 11 and the lower cover 12 form a sealed cavity around the hydraulic hoist pipeline connection part, and the sealing strip 15 is clamped in the clamping groove 17, so as to increase the sealing between the upper cover 11 and the lower cover 12; at this time, the sealing sleeves 10 at both ends of the upper cover 11 and the lower cover 12 are in contact with each other, and the sealing sleeves 10 at both ends of the upper cover 11 and the lower cover 12 are in close contact with the hydraulic hoist pipeline, and the sealing between the upper cover 11 and the lower cover 12 and the outer wall of the hydraulic hoist pipeline is improved through all the sealing sleeves 10; During the test, the air pump 19 increases the air pressure in the closed cavity between the upper cover 11 and the lower cover 12. After the air pressure increases to a certain level, the pressure value change of the No. 1 air pressure sensor is observed after standing for a period of time. When the air pressure of the No. 1 air pressure sensor decreases, it indicates that the sealing between the pipeline connection flanges of the hydraulic hoist is insufficient. During the inspection, the spray assembly 6 sprays colored spray into the upper cover 11, so that when the sealing between the hydraulic hoist pipe connection flanges is poor, the colored water vapor in the air overflows along the gap between the hydraulic hoist pipe connection flanges; after the hydraulic hoist pipe connection flanges are separated, the leakage gap position between the hydraulic hoist pipe connection flanges can be determined by the color adhesion of the contact surface of the hydraulic hoist pipe connection flanges; The drainage mechanism 8 can drive the air flow between the upper cover 11 and the lower cover 12 to prevent the colored water vapor in the air from being precipitated prematurely and adhering to the inner walls of the upper cover 11 and the lower cover 12, thereby affecting the determination of the leakage gap position at the connection of the hydraulic hoist pipeline in the later stage; Start the stretching mechanism 7, which can clamp the hydraulic gate hoist pipes on both sides of the upper cover 11 and stretch the hydraulic gate hoist pipes on both sides of the upper cover 11 horizontally to both sides. At this time, observe the pressure value change of the No. 1 air pressure sensor to detect the sealing stability of the hydraulic gate hoist pipe under the action of external force; When the stretching mechanism 7 is started, the sealing sleeves 10 at both ends of the upper cover 11 and the lower cover 12 can move horizontally synchronously with the hydraulic gate hoist pipeline. At this time, all the arc-shaped rubber pads 20 are pressurized and elastically limit the sealing sleeves 10. There is no relative movement between the sealing sleeves 10 at both ends of the upper cover 11 and the lower cover 12 and the hydraulic gate hoist pipeline, which can maintain the sealing performance of the sealing sleeves 10 at both ends of the upper cover 11 and the lower cover 12 to the hydraulic gate hoist pipeline, thereby improving the accuracy of the detection results.

[0027] like Figure 2As shown, a pipeline connection sealing detection system of a hydraulic gate hoist provided by the present invention, the driving mechanism 4 includes a guide rail 41, a bidirectional screw 42 and a No. 1 motor 43; The guide rail 41 is fixedly connected to the fixing seat 3 , and a No. 1 motor 43 is fixedly connected to the guide rail 41 . A bidirectional screw 42 is fixedly connected to the output shaft of the No. 1 motor 43 , and the bidirectional screw 42 is threadedly connected to the connecting seats on the upper cover 11 and the lower cover 12 .

[0028] In this embodiment, start motor No. 1 43, which drives the bidirectional screw 42 to rotate. Under the limiting action of the guide rail 41, the upper cover 11 and the lower cover 12 move vertically relative to each other. When the upper cover 11 contacts the lower cover 12, the upper cover 11 and the lower cover 12 form a sealed cavity around the hydraulic opening and closing machine pipeline connecting flange.

[0029] like Figure 3 As shown, a hydraulic gate hoist pipeline connection sealing detection system provided by the present invention, the adsorption mechanism 5 includes an elastic telescopic sleeve 51 and an arc-shaped suction cup 52, the fixed end of the elastic telescopic sleeve 51 is fixedly connected to the outer wall of the sealing sleeve 10, and the telescopic end of the elastic telescopic sleeve 51 is fixedly connected to the arc-shaped suction cup 52.

[0030] In this embodiment, when the upper cover 11 and the lower cover 12 are close to each other, the arc suction cups 52 in all the sealing sleeves 10 are in advance in contact with and adsorbed on the outer wall of the hydraulic gate hoist pipeline. At this time, as the upper cover 11 and the lower cover 12 are close to each other, the telescopic ends of all the elastic telescopic sleeves 51 are contracted toward the fixed ends of all the elastic telescopic sleeves 51; all the arc suction cups 52 can increase the connection stability between all the sealing sleeves 10 and the outer wall of the hydraulic gate hoist pipeline.

[0031] like Figure 4 As shown, a hydraulic gate hoist pipeline connection sealing detection system provided by the present invention, the spray assembly 6 includes a water tank 61 and a water pump 62, the water tank 61 is fixedly connected to the upper cover 11, and the water pump 62 is connected between the water tank 61 and the upper cover 11.

[0032] In this embodiment, the colored solvent is stored in the water tank 61 , and the water pump 62 is started to spray the spray into the closed cavity between the upper cover 11 and the lower cover 12 .

[0033] like Figure 1 As shown, a hydraulic gate hoist pipeline connection sealing detection system provided by the present invention, the stretching mechanism 7 includes a support frame 71, a No. 1 electric telescopic rod 72, a clamp 73 and a No. 2 electric telescopic rod 74; The No. 2 electric telescopic rod 74 is fixedly connected to the fixing seat 3, one end of the No. 2 electric telescopic rod 74 is fixedly connected to the support frame 71, the upper and lower ends of the support frame 71 are fixedly connected to the No. 1 electric telescopic rod 72, and one end of the No. 1 electric telescopic rod 72 is fixedly connected to the clamp 73.

[0034] In this embodiment, all No. 1 electric telescopic rods 72 are started to extend, and all No. 1 electric telescopic rods 72 clamp the hydraulic gate opening and closing machine pipeline together. Then, the two No. 2 electric telescopic rods 74 are started to extend, and the two No. 1 electric telescopic rods 72 drive the hydraulic gate opening and closing machine pipelines on both sides of the upper cover 11 and the lower cover 12 to be tightened.

[0035] like Figure 4 and Figure 7 As shown, a hydraulic gate hoist pipeline connection sealing detection system provided by the present invention, the drainage mechanism 8 includes a rotating shaft 81, a wind guide plate 82, a suction pad 83 and a second motor 84; The outer walls of the upper cover 11 and the lower cover 12 are fixedly connected with a No. 2 motor 84, the output shaft of the No. 2 motor 84 is fixedly connected with a rotating shaft 81, the rotating shaft 81 is fixedly connected with a plurality of air guide plates 82, the ends of the air guide plates 82 are fixedly connected with suction pads 83, and one of the rotating shafts 81 is arranged at the liquid outlet of the water pump 62.

[0036] In this embodiment, the second motor 84 is started, the second motor 84 drives the rotating shaft 81 to rotate, and the rotating shaft 81 drives all the air guide plates 82 to rotate, and the air guide plates 82 drive the air in the closed cavity between the upper cover 11 and the lower cover 12 to circulate, so as to prevent the colored water vapor from precipitating prematurely and adhering to the inner walls of the upper cover 11 and the lower cover 12, which affects the determination of the leakage position of the hydraulic hoist pipeline connection in the later stage; One of the rotating shafts 81 is arranged at the liquid outlet of the water pump 62. When the solvent in the water pump 62 drips from the liquid outlet of the water pump 62, the air guide plate 82 directly below the liquid outlet of the water pump 62 guides the solvent so that the solvent is absorbed by the suction pad 83, thereby preventing too much colored solvent from adhering to the pipeline connection flange of the hydraulic gate opening and closing machine.

[0037] like Figure 8 As shown, a hydraulic gate hoist pipeline connection sealing detection system provided by the present invention also includes a lubrication mechanism 9, and the lubrication mechanism 9 includes a baffle 91, a drainage groove 92 and a spring 93; A baffle plate 91 is vertically slidably and sealedly connected in the slot 17, a spring 93 is provided between the baffle plate 91 and the inner bottom surface of the slot 17, a drainage groove 92 is provided on the side wall of the lower cover 12, the baffle plate 91 seals the upper end opening of the drainage groove 92, a sealing airbag 16 is provided in the sealing strip 15, and lubricating oil is stored between the baffle plate 91 and the slot 17.

[0038] In this embodiment, when the upper cover 11 and the lower cover 12 are close to each other, the sealing airbag 16 is embedded in the slot 17. Under the push of the sealing airbag 16, the baffle 91 moves vertically downward. At this time, the spring 93 contracts, and the baffle 91 releases the blockade of the drainage groove 92. Under the downward pressure of the baffle 91, the lubricating oil at the bottom of the baffle 91 flows upward through the drainage groove 92. The lubricating oil increases the sealing between the sealing airbag 16 and the slot 17, thereby increasing the sealing between the upper cover 11 and the lower cover 12, and increasing the detection accuracy of the pipeline connection sealing detection system of this hydraulic gate opening and closing machine.

[0039] The present invention provides a hydraulic hoist pipeline connection sealing detection system, wherein the control module includes a second air pressure sensor, a computer processor and a PLC controller; The second air pressure sensor is connected to the inner wall of the isolation groove 13 , the first air pressure sensor, the second air pressure sensor and the PLC controller are all electrically connected to the computer processor, and the PLC controller is electrically connected to the driving mechanism 4 .

[0040] In this embodiment, when testing, the upper cover 11 and the lower cover 12 contact each other to form a closed cavity around the hydraulic hoist pipe connection flange, and the sealing sleeves 10 on both sides of the upper cover 11 and the lower cover 12 are closed to each other, so that the two isolation grooves 13 on the upper cover 11 and the lower cover 12 form a closed cavity around the hydraulic hoist pipe; when the air pump 19 increases the air pressure in the lower cover 12, the air pressure in the isolation grooves 13 on both sides of the lower cover 12 increases synchronously; When the air pressure values ​​of the No. 1 air pressure sensor and the No. 2 air pressure sensor are both lower than the air pressure thresholds preset in the computer processor, it means that the upper cover 11 and the lower cover 12 are not closed tightly and the seal is not tight. At this time, the PLC controller controls the drive mechanism 4 to start, and the drive mechanism 4 drives the upper cover 11 and the lower cover 12 to continue to be pressed tightly, so as to ensure the airtightness between the upper cover 11 and the lower cover 12, thereby improving the accuracy of the hydraulic hoist pipeline connection sealing detection; When the air pressure value of the No. 1 air pressure sensor is lower than the first air pressure threshold preset in the computer processor, and the air pressure value of the No. 2 air pressure sensor remains unchanged, it means that the airtightness between the upper cover 11 and the lower cover 12 is good, and the air pressure between the upper cover 11 and the lower cover 12 leaks through the gap between the hydraulic gate hoist pipeline connection flanges, which means that the sealing between the hydraulic gate hoist pipeline connection flanges is not tight.

[0041] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hydraulic hoist pipeline connection sealing detection system, comprising a base (1), wherein the base (1) is fixedly connected to a retractable lifting seat (2), and the lifting seat (2) is fixedly connected to a fixed seat (3), characterized in that: The fixing seat (3) is fixedly connected to a driving mechanism (4), and an upper cover (11) and a lower cover (12) are respectively arranged at the upper and lower ends of the driving mechanism (4), and the upper cover (11) and the lower cover (12) are arranged opposite to each other. The driving mechanism (4) can drive the upper cover (11) and the lower cover (12) to move vertically relative to each other, and a first air pressure sensor is arranged in the upper cover (11); The upper cover (11) and the lower cover (12) are both slidably connected to sealing sleeves (10), and an arc-shaped rubber pad (20) is provided between one end of the sealing sleeve (10) and the inner wall of the upper cover (11) or the lower cover (12), and a toothed sealing block (18) is provided on the horizontal side surface of the sealing sleeve (10); All sealing sleeves (10) are provided with an isolation groove (13), a sealing ring (14) is provided along the side of the isolation groove (13), and an adsorption mechanism (5) capable of being adsorbed and fixed to the pipeline is provided in each of the isolation grooves (13); the end surfaces of the upper cover (11) and the lower cover (12) in contact are respectively provided with a sealing strip (15) and a clamping groove (17), and the sealing strip (15) on the upper cover (11) can mesh with the clamping groove (17) on the lower cover (12); An air pump (19) is fixedly arranged on the outer wall of the lower cover (12), and the air outlet of the air pump (19) is connected to the inner cavity of the lower cover (12). At the same time, the air outlet of the air pump (19) is connected to the sealing sleeves (10) on both sides of the lower cover (12) through a pipeline. A spray assembly (6) is arranged on the upper cover (11), and the spray assembly (6) can spray a colored spray into the upper cover (11). A drainage mechanism (8) is arranged in both the upper cover (11) and the lower cover (12). When the upper cover (11) contacts the lower cover (12), the drainage mechanism (8) can drive the air flow between the upper cover (11) and the lower cover (12); A stretching mechanism (7) is fixed on both sides of the fixing seat (3), and the stretching mechanism (7) is capable of clamping the hydraulic gate hoist pipes on both sides of the upper cover (11) and stretching the hydraulic gate hoist pipes on both sides of the upper cover (11) horizontally to both sides; The control module can control the driving mechanism (4) by changing the air pressure in the isolation groove (13) during detection, thereby increasing the accuracy of the detection of the sealing performance of the pipeline connection of the hydraulic hoist.

2. A hydraulic hoist pipeline connection sealing detection system according to claim 1, characterized in that: The driving mechanism (4) comprises a guide rail (41), a bidirectional screw rod (42) and a first motor (43); The guide rail (41) is fixedly connected to the fixing seat (3), the guide rail (41) is fixedly connected to a No. 1 motor (43), the output shaft of the No. 1 motor (43) is fixedly connected to a bidirectional screw (42), and the bidirectional screw (42) is threadedly connected to the connecting seats on the upper cover (11) and the lower cover (12).

3. A hydraulic hoist pipeline connection sealing detection system according to claim 1, characterized in that: The adsorption mechanism (5) comprises an elastic telescopic sleeve (51) and an arc-shaped suction cup (52); the fixed end of the elastic telescopic sleeve (51) is fixedly connected to the outer wall of the sealing sleeve (10); and the telescopic end of the elastic telescopic sleeve (51) is fixedly connected to the arc-shaped suction cup (52).

4. A hydraulic hoist pipeline connection sealing detection system according to claim 1, characterized in that: The spray assembly (6) comprises a water tank (61) and a water pump (62); the water tank (61) is fixedly connected to the upper cover (11); and the water pump (62) is connected between the water tank (61) and the upper cover (11).

5. A hydraulic hoist pipeline connection sealing detection system according to claim 1, characterized in that: The stretching mechanism (7) comprises a support frame (71), a first electric telescopic rod (72), a clamp (73) and a second electric telescopic rod (74); The second electric telescopic rod (74) is fixedly connected to the fixing seat (3); one end of the second electric telescopic rod (74) is fixedly connected to a support frame (71); the upper and lower ends of the support frame (71) are fixedly connected to the first electric telescopic rod (72); and one end of the first electric telescopic rod (72) is fixedly connected to a clamp (73).

6. A hydraulic hoist pipeline connection sealing detection system according to claim 4, characterized in that: The air guide mechanism (8) comprises a rotating shaft (81), an air guide plate (82), a suction pad (83) and a second motor (84); The outer walls of the upper cover (11) and the lower cover (12) are both fixedly connected to a No. 2 motor (84); the output shaft of the No. 2 motor (84) is fixedly connected to a rotating shaft (81); the rotating shaft (81) is fixedly connected to a plurality of air guide plates (82); the ends of the air guide plates (82) are fixedly connected to suction pads (83); and one of the rotating shafts (81) is arranged at the liquid outlet of the water pump (62).

7. A hydraulic hoist pipeline connection sealing detection system according to claim 1, characterized in that: It also includes a lubrication mechanism (9), wherein the lubrication mechanism (9) includes a baffle (91), a drainage groove (92), and a spring (93); A baffle (91) is vertically slidably and sealedly connected in the slot (17), a spring (93) is provided between the baffle (91) and the inner bottom surface of the slot (17), a drainage groove (92) is provided on the side wall of the lower cover (12), the baffle (91) seals the upper end opening of the drainage groove (92), a sealing airbag (16) is provided in the sealing strip (15), and lubricating oil is stored between the baffle (91) and the slot (17).

8. A hydraulic hoist pipeline connection sealing detection system according to claim 1, characterized in that: The control module includes a second air pressure sensor, a computer processor and a PLC controller; The second air pressure sensor is connected to the inner wall of the isolation groove (13), the first air pressure sensor, the second air pressure sensor and the PLC controller are all electrically connected to the computer processor, and the PLC controller is electrically connected to the driving mechanism (4).

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