A hose air tightness pressure testing device based on intelligent sensing system

Abstract

The application relates to the technical field of pressure testing machines, and discloses a rubber pipe air tightness pressure testing device based on an intelligent sensing system, which comprises a host computer, an intelligent monitoring module arranged at the front of the host computer, two lifting rods symmetrically arranged at the front of the host computer, a fixing mechanism arranged at the front of the host computer, and a wire arrangement mechanism arranged at the outer side of the fixing mechanism; the fixing mechanism is used for fixing workpieces needing to be tested; the wire arrangement mechanism is used for restraining the execution components of the fixing mechanism; the fixing mechanism comprises a driving unit arranged at the front of the host computer, three linear arrays of support plates arranged at the middle parts of the lifting rods closest to the driving unit, a fixing ring commonly arranged at the top of the three support plates, and transverse arms arranged at the two sides of the fixing ring. Through the fixing mechanism, the pressure testing device realizes the fixing function of rubber pipes with different diameters, thereby improving the applicability of the device, and the steel cable can be used to surround and tighten the rubber pipe, so that gaps are avoided at the connection between the rubber pipe and the inflation nozzle.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pressure testing machines, in particular to a rubber pipe air tightness pressure testing device based on an intelligent sensing system. BACKGROUND

[0002] The rubber pipe air tightness pressure testing device based on the intelligent sensing system is a high-efficiency and high-precision detection equipment, and is mainly used for detecting whether the rubber pipe has air leakage during manufacturing and use. The working principle of the device is to inject high-pressure gas into the rubber pipe to be detected, and keep the pressure for a certain period of time, and then use a high-precision pressure sensor to monitor the pressure change in the rubber pipe in real time. If the rubber pipe has air leakage, the pressure in the rubber pipe will decrease, and the intelligent sensing system can capture the pressure change and judge the air leakage position and degree through data analysis. The device has the characteristics of simple operation, fast detection speed and high precision, and greatly improves the product quality and production efficiency of the rubber pipe production enterprise.

[0003] The traditional pressure testing device is widely used in the field of rubber pipe processing, but due to the limitation of its structure and working principle, there are some problems that cannot be ignored. For example, the traditional pressure testing device is particularly inconvenient to fix rubber pipes of different diameters during use. Because the fixing tool of the device is usually designed for a specific size, when different diameter rubber pipes are encountered, the operator has to frequently change the tool to adapt to the size of the rubber pipe, which not only wastes time and effort, but also reduces the work efficiency. In addition, the traditional pressure testing device usually cannot realize the wrapping reinforcement of the rubber pipe end during the fixing process, which means that the rubber pipe end may be displaced or leaked when pressure is applied due to poor fixation, thereby affecting the accuracy of the pressure testing result. SUMMARY

[0004] In view of the problems in the prior art that the traditional pressure testing device needs to change the tool to adapt to rubber pipes of different diameters during use, reduces the work efficiency, and the device cannot quickly fix the rubber pipe end, which may lead to inaccurate pressure testing results, a rubber pipe air tightness pressure testing device based on an intelligent sensing system is proposed.

[0005] The purpose is to be able to fix rubber pipes of different diameters and quickly wrap and reinforce the rubber pipes.

[0006] The technical scheme of the application is a rubber pipe air tightness pressure testing device based on an intelligent sensing system, which comprises a host computer, an intelligent monitoring module arranged at the front of the host computer, two lifting rods symmetrically arranged at the front of the host computer, a fixing mechanism arranged at the front of the host computer, and a wire arrangement mechanism arranged outside the fixing mechanism.

[0007] The fixing mechanism is used for fixing the workpiece to be tested, and the wire arrangement mechanism is used for restraining the execution component of the fixing mechanism.

[0008] The fixing mechanism comprises a driving unit arranged at the front of the main machine, three linear arrays arranged on the support plates at the middle part of the lifting rods closest to the driving unit, a fixing ring arranged at the top of the three support plates, transverse arms arranged at both sides of the fixing ring, guide holes arranged at the middle part of the transverse arms, a driving ring arranged at the side of the fixing ring close to the driving unit, two rotating arms symmetrically arranged at both sides of the driving ring, driving holes arranged at the middle part of the rotating arms, sliding blocks arranged at the inner side of the driving holes, cross bars arranged at the side of the sliding blocks away from the driving holes, a plurality of steel wires arranged at the outer side of the cross bars, and an inflation nozzle arranged at the middle part of the fixing ring.

[0009] Further, the intelligent monitoring module comprises a gas source, an intelligent pressure sensor and a prompt light, the gas source provides gas and can release pressure, the intelligent pressure sensor detects the pressure value and provides the detection result;

[0010] The intelligent pressure sensor controls the gas source to inject gas into the rubber tube and detects the pressure value in the rubber tube, when the pressure value in the rubber tube reaches the set detection value, the gas injection of the gas source is stopped, and the detection time T is set, at this time the rubber tube is in a sealed state, the pressure P1 in the pipeline is detected, after the detection time T reaches, the intelligent pressure sensor detects the pressure value P2 in the rubber tube again, then the rubber tube is depressurized, and the data P1 and P2 collected twice are compared to obtain the gas pressure change value Pn;

[0011] The calculation formula of the gas pressure change value Pn is: ;

[0012] Pn is compared with the threshold value X, wherein the threshold value X is the gas pressure change value of the qualified rubber tube under the set detection pressure condition;

[0013] If Pn≥X, the program is executed, the intelligent pressure sensor sends a signal to the prompt light, and the prompt light is green for five seconds;

[0014] If Pn<X, the program is executed, the intelligent pressure sensor sends a signal to the prompt light, and the prompt light is red for five seconds.

[0015] Further, the driving unit comprises a large sprocket arranged at the side of the driving ring away from the transverse arm, a chain arranged at the outer side of the large sprocket, a small sprocket arranged at the top of the chain, a rubber tube sleeved at the outer side of the inflation nozzle, and a motor arranged at the side of the small sprocket close to the intelligent monitoring module, the top of the motor is fixedly connected with the adjacent lifting rod.

[0016] Further, the wire arranging mechanism comprises a circular frame arranged on the side of the fixing ring away from the driving ring, two horizontal plates symmetrically arranged on the top and bottom of the circular frame, three linear array through holes arranged on the top of the horizontal plate, guide columns arranged on the inner side of the through holes, connecting plates arranged on the side of the guide columns away from the rubber tube, springs sleeved on the top of the central guide column, the top and bottom of the spring being fixedly connected with the connecting plate and the horizontal plate respectively, wire fixing units arranged on the bottom of the guide column, and two wire winding units arranged on the two ends of the steel cable.

[0017] Further, the wire fixing unit comprises a bottom block arranged on the bottom of the guide column, two wire grooves symmetrically arranged on the side of the bottom block close to the rubber tube, the inner wall of the wire groove being slidably connected with the closest steel cable, two support blocks symmetrically arranged on the two sides of the bottom block, and connecting rods arranged on the inner side of the support blocks.

[0018] Further, the wire winding unit comprises two housings symmetrically arranged on the two ends of the steel cable, the side of the housing close to the rubber tube being fixedly connected with the closest connecting rod, wire holes arranged on the two sides of the housing, two rollers symmetrically arranged in the housing, two transmission wheels arranged on the side of the two rollers away from the fixing ring, a round belt arranged on the outer side of the two transmission wheels, and a clockwork arranged on the inner wall of the side of the housing close to the fixing ring, the inner end of the clockwork being fixedly connected with the upper roller.

[0019] Further, the shape of the sliding block is T-shaped, and the cross section of the driving hole matches the shape of the sliding block.

[0020] Further, the middle part of the steel cable is wrapped around the outer side of the rubber tube, and the inner wall of the wire groove matches the outer wall of the steel cable.

[0021] Further, the end of the connecting rod close to the rubber tube is symmetrically provided with a cylindrical protrusion, the side of the support block close to the fixing ring is provided with a through circular hole to the other side, and the circular hole is rotatably connected with the cylindrical protrusion of the connecting rod.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] 1. By arranging the fixing mechanism, the pressure testing device realizes the fixing function of different diameter rubber tubes, thereby improving the applicability of the device. The design of the fixing mechanism allows the device to be adjusted according to the diameter of the rubber tube, ensuring that the rubber tube can be stably located at the pressure testing position during the pressure testing process of various specifications of rubber tubes. This flexibility makes the pressure testing device no longer limited to rubber tubes of a specific diameter, but can cover a wider range of applications. The introduction of the fixing mechanism simplifies the preparation work before pressure testing, reduces the number of times of equipment replacement or adjustment due to different sizes of rubber tubes, improves the operation convenience of the pressure testing device, and enhances its practicality and economy in different engineering environments.

[0024] 2. Through the setting of the wire arrangement mechanism, the pressure testing device can use the steel cable to surround and tighten the rubber tube, avoiding the gap between the rubber tube and the inflation nozzle, and the design of the wire arrangement mechanism allows the steel cable to evenly distribute pressure around the rubber tube, ensuring that the rubber tube is tightly attached to the inflation nozzle during pressure testing, thereby realizing seamless connection. In this way, the leakage of the pressure testing medium due to the gap is avoided, ensuring the accuracy of the pressure testing result. The use of the wire arrangement mechanism improves the sealing performance of the pressure testing device and reduces the risk of pressure testing failure due to loose connection.

[0025] 3. Through the setting of the wire arrangement mechanism, the pressure testing device can use the steel cable to surround and tighten the rubber tube, avoiding the gap between the rubber tube and the inflation nozzle, and the design of the wire arrangement mechanism allows the steel cable to evenly distribute pressure around the rubber tube, ensuring that the rubber tube is tightly attached to the inflation nozzle during pressure testing, thereby realizing seamless connection. In this way, the leakage of the pressure testing medium due to the gap is avoided, ensuring the accuracy of the pressure testing result. The use of the wire arrangement mechanism improves the sealing performance of the pressure testing device and reduces the risk of pressure testing failure due to loose connection. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application;

[0027] Figure 2 It is a schematic diagram of the connection between the support plate and the lifting rod of the present application;

[0028] Figure 3 It is a schematic diagram of the connection between the steel cable and the cross bar of the present application;

[0029] Figure 4 It is an exploded view of the fixing mechanism of the present application;

[0030] Figure 5 It is a schematic diagram of the connection between the rubber tube and the steel cable of the present application;

[0031] Figure 6 It is a schematic diagram of the connection between the rotary arm and the drive ring of the present application;

[0032] Figure 7 It is a schematic diagram of the connection between the circular frame and the fixing ring of the present application;

[0033] Figure 8 It is a schematic diagram of the overall structure of the wire arrangement mechanism of the present application;

[0034] Figure 9 It is a schematic diagram of the connection between the cross plate and the circular frame of the present application;

[0035] Figure 10Connection diagram of connecting connecting rod and shell of the present application;

[0036] Figure 11 Connection diagram of bottom block structure of the present application;

[0037] Figure 12 Connection diagram of internal structure of shell of the present application;

[0038] Figure 13 Connection diagram of connecting shell and spring of the present application;

[0039] Figure 14 Workflow diagram of intelligent monitoring module of the present application.

[0040] In the figure:

[0041] 1, main machine; 2, intelligent monitoring module; 3, lifting rod; 4, fixing mechanism; 5, wire arrangement mechanism; 41, support plate; 42, fixing ring; 43, cross arm; 44, guide hole; 45, driving ring; 46, rotary arm; 47, driving hole; 48, sliding block; 49, cross rod; 410, steel cable; 411, inflation nozzle; 412, large sprocket; 413, chain; 414, small sprocket; 415, rubber tube; 416, motor; 51, round frame; 52, cross plate; 53, through hole; 54, guide column; 55, connecting plate; 56, spring; 57, bottom block; 58, wire slot; 59, support block; 510, connecting rod; 511, shell; 512, wire hole; 513, roller; 514, transmission wheel; 515, round belt; 516, spring. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0043] Example 1, refer to Figures 1-14For the first embodiment of the present application, a rubber tube airtightness pressure testing device based on an intelligent sensing system is provided, comprising a host computer 1, an intelligent monitoring module 2 installed on the front of the host computer 1, two lifting rods 3 symmetrically and slidingly connected to the front of the host computer 1, a fixing mechanism 4 installed on the front of the host computer 1, and a wire arrangement mechanism 5 installed on the outer side of the fixing mechanism 4; the fixing mechanism 4 is used to fix the workpiece to be tested, and the wire arrangement mechanism is used to constrain the execution components of the fixing mechanism 4; the fixing mechanism 4 comprises a driving unit assembled on the front of the host computer 1, three linear arrays of support plates 41 fixedly connected to the middle part of the lifting rod 3 closest to the driving unit, a fixing ring 42 fixedly connected to the top of the three support plates 41, a cross arm 43 fixedly connected to the two sides of the fixing ring 42, a guide hole 44 opened in the middle part of the cross arm 43, a driving ring 45 rotatably connected to the side of the fixing ring 42 close to the driving unit, two rotary arms 46 fixedly connected to the two sides of the driving ring 45, a driving hole 47 opened in the middle part of the rotary arm 46, a sliding block 48 slidingly connected to the inner side of the driving hole 47, a cross rod 49 fixedly connected to the side of the sliding block 48 away from the driving hole 47, and a plurality of steel cables 410 linearly and fixedly connected to the outer side of the cross rod 49, and an inflation nozzle 411 fixedly connected to the middle part of the fixing ring 42.

[0044] Specifically, during the pressure testing process, the intelligent monitoring module 2 detects the change of the pressure value during the pressure maintaining process of the rubber tube 415, which can determine the airtightness of the rubber tube 415, and the power provided by the driving unit can drive the fixing mechanism 4 to operate, the support plate 41 can provide support for the fixing ring 42, the fixing ring 42 can provide a stable fixing point for other components of the fixing mechanism 4, the cross arm 43 and the guide hole 44 can constrain the moving direction and stroke of the sliding block 48, so that it moves within the predetermined track and range, the driving ring 45 can transmit the power of the driving unit and rotate while driving the rotary arm 46 to rotate, the rotary arm 46 and the driving hole 47 can drive the sliding block 48 to move while rotating, the sliding block 48 can drive the cross rod 49 to move along the fixed track, and the cross rod 49 will drive the steel cable 410 to move while moving, when the two ends of the steel cable 410 are pulled by the two cross rods 49, the rubber tube 415 will be tightened, otherwise the fixing of the rubber tube 415 will be released. Through the setting of the fixing mechanism 4, the pressure testing device realizes the fixing function of rubber tubes 415 of different diameters, thereby improving the applicability of the device. The design of the fixing mechanism 4 allows the device to be adjusted according to the diameter of the rubber tube 415, ensuring that the rubber tube 415 can be stably located at the pressure testing position during the pressure testing process of rubber tubes 415 of various specifications. This flexibility makes the pressure testing device no longer limited to rubber tubes 415 of a specific diameter, but can cover a wider range of applications. The introduction of the fixing mechanism 4 simplifies the preparation work before pressure testing and reduces the number of times the equipment needs to be replaced or adjusted due to different sizes of rubber tubes 415. Not only does it improve the operation convenience of the pressure testing device, but also enhances its practicality and economy in different engineering environments.

[0045] With reference to Figure 14 , the intelligent monitoring module 2 comprises a gas source, an intelligent pressure sensor and a prompt light, the gas source provides gas and can release pressure, the intelligent pressure sensor detects the pressure value and provides the detection result; the intelligent pressure sensor controls the gas source to inject gas into the rubber tube 415 and detects the pressure value in the rubber tube 415, when the pressure value in the rubber tube 415 reaches the set detection value, the gas source is controlled to stop injecting gas, and the detection time T is set, at this time the rubber tube 415 is in a sealed state, the pressure P1 in the pipeline is detected, after the detection time T reaches, the intelligent pressure sensor detects the pressure value P2 in the rubber tube 415 again, then the rubber tube 415 is released, and the data P1 and P2 collected twice are compared to obtain the pressure change value Pn; the calculation formula of the pressure change value Pn is: ; compare Pn with the threshold value X, wherein the threshold value X is the pressure change value of the qualified rubber tube 415 under the set detection pressure condition; if Pn≥X, the program is executed, the intelligent pressure sensor sends a signal to the prompt light, and the prompt light is green for five seconds; if PnX, the program is executed, the intelligent pressure sensor sends a signal to the prompt light, and the prompt light is red for five seconds.

[0046] Specifically, through the intelligent monitoring module 2, the pressure value in the rubber tube 415 can be detected to determine whether the rubber tube 415 is qualified in air tightness.

[0047] With reference to Figure 2 and Figure 3 , the driving unit comprises a large sprocket 412 fixedly connected to the driving ring 45 away from the lateral arm 43, a chain 413 meshingly connected to the outer side of the large sprocket 412, a small sprocket 414 meshingly connected to the top of the chain 413, a rubber tube 415 sleeved outside the inflation nozzle 411, and a motor 416 fixedly connected to the small sprocket 414 close to the intelligent monitoring module 2, and the top of the motor 416 is fixedly connected with the adjacent lifting rod 3.

[0048] Specifically, the motor 416 drives the small sprocket 414 to rotate while rotating, the small sprocket 414 drives the large sprocket 412 to rotate through the chain 413, and the large sprocket 412 drives the driving ring 45 to rotate synchronously, so that the driving unit can provide power for the fixing mechanism 4.

[0049] Embodiment 2, with reference to Figures 7-13For the second embodiment of the application, which is different from the first embodiment, the wire arrangement mechanism 5 comprises a circular frame 51 fixedly connected to the fixed ring 42 away from the driving ring 45, two symmetrical horizontal plates 52 fixedly connected to the top and bottom of the circular frame 51, three linear arrays of through holes 53 opened in the top of the horizontal plate 52, guide columns 54 slidably connected to the inner side of the through holes 53, connecting plates 55 fixedly connected to the guide columns 54 away from the rubber tube 415, springs 56 sleeved on the top of the central guide column 54, the top and bottom of the spring 56 being fixedly connected to the connecting plate 55 and the horizontal plate 52 respectively, wire fixing units assembled on the bottom of the guide column 54, and two wire winding units assembled on the two ends of the steel cable 410.

[0050] Specifically, the circular frame 51 can provide support for the horizontal plate 52, the horizontal plate 52 restricts the movement direction of the guide column 54 through the through hole 53, the three guide columns 54 move synchronously, the connecting plate 55 can transmit the force of the spring 56 and disperse the force to the three guide columns 54, so that the lifting of the guide columns 54 is kept synchronous, by setting the wire arrangement mechanism 5, the pressure testing device can use the steel cable 410 to wrap around and tighten the rubber tube 415, avoiding the gap between the rubber tube 415 and the inflation nozzle 411, the design of the wire arrangement mechanism 5 allows the steel cable 410 to evenly distribute pressure around the rubber tube 415, ensuring that the rubber tube 415 is tightly attached to the inflation nozzle 411 during the pressure test, thereby achieving seamless connection, in this way, the leakage of the pressure testing medium due to the gap is avoided, ensuring the accuracy of the pressure test result, the use of the wire arrangement mechanism 5 improves the sealing performance of the pressure testing device and reduces the risk of pressure test failure caused by loose connection.

[0051] Referring to Figures 7-11 , the wire fixing unit comprises a bottom block 57 fixedly connected to the bottom of the guide column 54, two symmetrical wire grooves 58 opened on the side of the bottom block 57 close to the rubber tube 415, the inner wall of the wire groove 58 being slidably connected to the closest steel cable 410, two symmetrical support blocks 59 fixedly connected to the two sides of the bottom block 57, and a connecting rod 510 rotatably connected to the inner side of the support block 59.

[0052] Specifically, the wire groove 58 can constrain the steel cable 410, so that the steel cable 410 can form a noose while wrapping around the rubber tube 415, the support block 59 can position the connecting rod 510, so that the connecting rod 510 can rotate at the connection with the support block 59, and the connecting rod 510 can provide support for the outer shell 511, so that the outer shell 511 can only move within the rotation range of the connecting rod 510.

[0053] Referring to Figures 11-13The winding unit comprises two housings 511 symmetrically and slidingly connected at two ends of the steel cable 410, the housing 511 is fixedly connected to the closest connecting rod 510 at a side close to the rubber tube 415, a wire hole 512 is formed at two sides of the housing 511, two rollers 513 are symmetrically and rotatably connected inside the housing 511, two transmission wheels 514 are fixedly connected at sides away from the fixed ring 42 of the two rollers 513 respectively, a round belt 515 is sleeved outside the two transmission wheels 514, and a spring 516 is fixedly connected to an inner wall of the housing 511 at a side close to the fixed ring 42, and an inner end of the spring 516 is fixedly connected to the upper roller 513.

[0054] Specifically, the housing 511 can accommodate the steel cable 410 to pass through the wire hole 512, and provide support and protection for the internal moving parts, and the roller 513 will rotate when the steel cable 410 is tightened, the roller 513 will drive the transmission wheel 514 connected thereto to rotate at the same time, the two transmission wheels 514 will rotate in opposite directions under the action of the round belt 515, and the amplitude of rotation is the same, wherein the upper roller 513 will make the spring 516 store energy when rotating, and the spring 516 will release energy to drive the roller 513 to reverse when the steel cable 410 is relaxed, the roller 513 will push the steel cable 410 in the direction of the rubber tube 415 while rotating, so that the noose formed by the steel cable 410 expands, and through the setting of the winding unit, the test device can make the noose formed by the steel cable 410 expand after the tension of the steel cable 410 is released, thereby avoiding the mutual entanglement between different steel cables 410, the design of the winding unit allows the steel cable 410 to be recovered in an orderly manner according to the preset path after the tension is released, ensuring that each steel cable 410 can maintain an independent state, this mechanism allows the noose formed by the steel cable 410 to expand during the recovery process, preparing for the next pressure test, and preventing the entanglement of the steel cables 410 due to mutual contact, the application of the winding unit not only improves the operation efficiency of the test device, but also reduces the complexity of subsequent maintenance, in this way, the steel cable 410 can be kept neat and orderly during storage and reuse, reducing the risk of damage caused by entanglement and prolonging the service life of the steel cable 410.

[0055] Referring to Figure 4 and Figure 6 , the slider 48 is T-shaped in shape, and the cross section of the driving hole 47 matches the shape of the slider 48.

[0056] Specifically, the driving hole can constrain the slider 48 so that it does not fall off, and the slider 48 can be displaced by the driving hole 47 when the rotating arm 46 rotates.

[0057] Referring to Figures 5-11The middle part of the steel cable 410 is wrapped around the outside of the rubber tube 415, and the inner wall of the wire slot 58 matches the outer wall of the steel cable 410.

[0058] Specifically, the outer side of the steel cable 410 slides along the wire slot 58 during the process of being tightened or loosened, and the steel cable 410 can maintain a ring shape after being wrapped around the rubber tube 415 by the constraint of the wire slot 58.

[0059] Referring to Figure 10 and Figure 11 One end of the connecting rod 510 close to the rubber tube 415 is symmetrically provided with a cylindrical protrusion, and the side of the supporting block 59 close to the fixing ring 42 is provided with a circular hole penetrating to the other side, and the circular hole is rotationally connected with the cylindrical protrusion of the connecting rod 510.

[0060] Specifically, the connecting rod 510 is connected with the circular hole of the supporting block 59 through the cylindrical protrusion, and the connecting rod 510 can rotate around the connection with the supporting block 59 after being stressed, and the remaining structure is the same as that of the first embodiment.

[0061] In combination with the embodiments 1-2, the working principle of the present application is as follows: the end of the rubber tube 415 is sleeved outside the inflation port, and then the motor 416 is started to drive the small chain wheel 414 to rotate, the small chain wheel 414 drives the large chain wheel 412 to rotate through the chain 413, the large chain wheel 412 drives the driving ring 45 to rotate synchronously, the driving ring 45 drives the rotating arm 46 to rotate while rotating, the rotating arm 46 drives the sliding block 48 to move through the driving hole 47 after rotating, the sliding block 48 is constrained by the guide hole 44, so it can only move along the guide hole 44 after being stressed, the sliding block 48 drives the cross rod 49 to move while moving, the cross rod 49 drives the steel cable 410 to move while moving, the moving direction of the sliding block 48 and the cross rod 49 can be controlled by controlling the rotating direction of the rotating arm 46, when the two cross rods 49 move away from each other, the steel cable 410 will be pulled to tighten the rubber tube 415, so as to reinforce the rubber tube 415 in a surrounding manner, and avoid the gap at the connection between the rubber tube 415 and the inflation nozzle 411, when the two cross rods 49 move close to each other, the noose formed by the steel cable 410 expands, so as to release the fixation of the rubber tube 415, the steel cable 410 is constrained by the wire slot 58 during the process of winding and unwinding, so it will remain in a state capable of forming a noose, the steel cable 410 will drive the two rollers 513 to rotate during the process of tightening, the rollers 513 drive the transmission wheels 514 connected thereto to rotate while rotating, the two transmission wheels 514 in the same housing 511 are connected through the round belt 515, the round belt 515 synchronizes the rotating speed of the two rollers 513 through the two transmission wheels 514, the upper roller 513 will store the energy of the clockwork 516 while rotating, the clockwork 516 will release the energy to make the roller 513 connected thereto rotate reversely when the steel cable 410 is relaxed, the upper roller 513 drives the other roller 513 to rotate through the transmission wheel 514 and the round belt 515, the two rollers 513 will drive the relaxed part of the steel cable 410 to move towards the bottom block 57 after synchronous rotation, so as to expand the noose formed by the steel cable 410, thereby reserving enough space for the next pressure test of the rubber tube 415, and preventing the steel cables 410 from being entangled with each other due to relaxation and dispersion.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of claims of the present application.

Claims

1. A smart sensor system-based hose air tightness pressure testing device for air tightness pressure testing of a hose, characterized in that: The utility model provides a kind of intelligent monitoring module, fixing mechanism and line arrangement mechanism for the front of host computer, and the lifting rod is arranged in the front of host computer, and the lifting rod is arranged in the front of host computer. The fixing mechanism is used for fixing the workpiece to be tested, and the line arrangement mechanism is used for restraining the executing component of the fixing mechanism. The fixing mechanism includes a driving unit arranged in the front of the host computer, three linear arrays arranged in the middle of the lifting rod closest to the driving unit, a fixing ring arranged at the top of the three support plates, a cross arm arranged on both sides of the fixing ring, a guide hole opened in the middle of the cross arm, a driving ring arranged on the side of the fixing ring close to the driving unit, two rotating arms arranged symmetrically on both sides of the driving ring, a driving hole opened in the middle of the rotating arm, a sliding block arranged in the inner side of the driving hole, a cross bar arranged on the side of the sliding block away from the driving hole, and a plurality of steel cables arranged on the outer side of the cross bar, and an inflation nozzle arranged in the middle of the fixing ring. The line arrangement mechanism includes a circular frame arranged on the side of the fixing ring away from the driving ring, two horizontal plates arranged symmetrically on the top and bottom of the circular frame, three linear arrays of through holes opened in the top of the horizontal plate, guide columns arranged in the inner side of the through hole, a connecting plate arranged on the side of the guide column away from the rubber tube, and a spring sleeved on the top of the central guide column, the top and bottom of the spring are fixedly connected with the connecting plate and the horizontal plate respectively, a wire fixing unit arranged at the bottom of the guide column, and two wire winding units arranged at the two ends of the steel cable. The wire fixing unit includes a bottom block arranged at the bottom of the guide column, two wire grooves opened symmetrically on the side of the bottom block close to the rubber tube, the inner wall of the wire groove is slidably connected with the closest steel cable, two support blocks arranged symmetrically on both sides of the bottom block, and a connecting rod arranged in the inner side of the support block. The wire winding unit includes two housings arranged symmetrically at the two ends of the steel cable, the side of the housing close to the rubber tube is fixedly connected with the closest connecting rod, wire holes are opened on both sides of the housing, two rollers arranged symmetrically in the housing, two transmission wheels arranged on the side of the two rollers away from the fixing ring, a round belt arranged on the outer side of the two transmission wheels, and a clockwork arranged on the inner wall of the side of the housing close to the fixing ring, the inner end of the clockwork is fixedly connected with the upper roller.

2. The smart sensing system based air tightness pressure testing device for rubber tube according to claim 1, wherein: The intelligent monitoring module includes a gas source, an intelligent pressure sensor and a prompt light, the gas source provides gas and can release pressure, the intelligent pressure sensor detects the pressure value and provides detection results. The intelligent pressure sensor controls the gas source to inject gas into the rubber tube and detects the pressure value in the rubber tube, when the pressure value in the rubber tube reaches the set detection value, the gas source stops injecting gas, and the detection time T is set, at this time, the rubber tube is in a sealed state, the pressure P1 in the pipeline is detected, after the detection time T reaches, the intelligent pressure sensor detects the pressure value P2 in the rubber tube again, then releases the pressure in the rubber tube, and compares the two collected data P1 and P2 to obtain the pressure change value Pn. The formula for calculating the air pressure change value Pn is: ; Pn is compared with threshold value X, wherein the threshold value X is the pressure change value of the qualified rubber tube under the set detection pressure condition. If Pn≥X, the program is executed, the intelligent pressure sensor sends a signal to the prompt light, and the prompt light turns green for five seconds. If Pn < X, the program executes, the intelligent pressure sensor sends a signal to the prompt light, and the prompt light is red for five seconds.

3. The smart sensing system based air tightness pressure testing device for rubber tube as claimed in claim 1 wherein: The driving unit comprises a large sprocket arranged on the side of the driving ring away from the transverse arm, a chain arranged on the outer side of the large sprocket, a small sprocket arranged on the top of the chain, a rubber tube sleeved on the outer side of the inflation nozzle, and a motor arranged on the side of the small sprocket close to the intelligent monitoring module, and the top of the motor is fixedly connected with the adjacent lifting rod.

4. The smart sensing system based air tightness pressure testing device for rubber tube according to claim 1, wherein: The slider is T-shaped in shape, and the cross section of the driving hole matches the shape of the slider.

5. The smart sensing system based air tightness pressure testing device for rubber tube as claimed in claim 1 wherein: The middle part of the steel cable is wrapped around the outer side of the rubber tube, and the inner wall of the wire slot matches the outer wall of the steel cable.

6. The smart sensing system based air tightness pressure testing device for rubber tube as claimed in claim 1 wherein: The end of the connecting rod close to the rubber tube is symmetrically provided with a cylindrical protrusion, the side of the support block close to the fixing ring is provided with a through circular hole to the other side, and the circular hole is rotationally connected with the cylindrical protrusion of the connecting rod.

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