A device for opening and closing a parachute and a method for detecting the same

Abstract

The application discloses a kind of opening and closing equipment suitable for self-opening umbrella and its detection method.The opening and closing equipment of the application includes rack;Including clamping mechanism, fixedly installed on the upper end of rack;Including pull line mechanism, installed on rack;Including spring force detection mechanism, installed at the bottom end of rack and connected with pull line mechanism;Including umbrella opening and closing force measuring mechanism, installed on the upper end of rack and arranged on the side of clamping mechanism, and umbrella opening and closing force measuring mechanism is in contact with self-opening umbrella switch button.The method of the application includes self-opening umbrella clamping and fixing stage, umbrella pole force measuring stage, umbrella tool sliding sleeve stroke measuring stage, umbrella tool sliding sleeve retracting stage and umbrella tool opening and closing cycle test stage.The application adopts active opening and closing form, simulates the scene that human uses self-opening umbrella in reality, so that umbrella tool opening and closing cycle test is more in line with real use condition, and the application is simple to operate, and operation efficiency is high, and has outstanding advantages in umbrella tool opening and closing cycle test of self-opening umbrella.

Description

Technical Field

[0001] This invention relates to the field of umbrella fatigue opening and closing detection, specifically to an opening and closing device and its detection method adapted to self-opening umbrellas. Background Technology

[0002] During the manufacturing process, the quality of the umbrella itself is crucial. In the national standard GB / T 23147-2018 Umbrellas, the number of times the umbrella can be opened and closed, the force required to press the switch button, and the force required to compress the umbrella shaft are important indicators for judging whether the quality of the umbrella is up to standard.

[0003] Current technologies use a fixing device and a pressing device to fix the head and tail of the self-opening umbrella respectively, a driving component to press the opening and closing mechanism of the umbrella, and a lifting mechanism and a clamping device to actively drive the sliding sleeve of the self-opening umbrella to move, thereby controlling the opening and closing of the umbrella surface.

[0004] The umbrella head and top are fixed by clamping mechanism one and clamping mechanism two respectively, and the umbrella slide is clamped by the clamping block on the closing drive mechanism. The pressing mechanism is responsible for pressing the button on the umbrella handle. Working process: By driving the pressing cylinder in the pressing mechanism to apply force to the button on the umbrella handle, the umbrella canopy opens. The slide moves towards the top of the umbrella under the action of the umbrella rod spring. The slide drives the clamping block and the extended end of the linear cylinder on the closing drive mechanism to extend. After the sensor senses the opening signal of the umbrella canopy, it drives the linear cylinder to work, retracting the extended end of the linear cylinder, thereby driving the clamping block and the slide to move in the opposite direction, closing the umbrella canopy and completing one cycle.

[0005] There are many problems with the existing technology: most existing devices adopt the form of active opening and closing for the opening and closing of self-opening umbrellas or adopt the form of cylinder following the rise and then actively pulling back, similar to the above-mentioned patent. They cannot completely simulate the manual opening and closing of self-opening umbrellas. They lack automatic measurement of the travel of the self-opening umbrella slide sleeve and automatic detection of whether the umbrella rod spring has failed. In addition, the overall size of the part holding the slide sleeve is relatively large, which is easy to cause interference with the umbrella and damage the umbrella structure.

[0006] One existing umbrella durability testing machine uses an actively controlled sliding sleeve to achieve automatic umbrella opening and closing. This method cannot fully simulate manual opening and closing of an automatic umbrella. Furthermore, the active opening and closing mechanism cannot determine whether the umbrella opening button or the umbrella rod spring malfunctions during the opening and closing test. Additionally, the lifting mechanism and clamping device holding the sliding sleeve are relatively large, easily interfering with the umbrella structure and damaging it during opening and closing, thus affecting the opening and closing test results. Another existing umbrella opening and closing testing platform and method uses a linear cylinder to follow and pull back the sliding sleeve. During the extension of the cylinder, the resistance generated by the cylinder is significant, causing the sliding sleeve to not spring open to the specified position, resulting in the umbrella not fully opening and affecting the final test results. Both of these existing technologies require manual adjustment of the relative positions of various mechanisms for different sized automatic umbrellas, which is cumbersome and inefficient. They also lack automatic measurement of the standard stroke of the sliding sleeve and automatic detection and judgment of whether the umbrella rod spring has failed during the opening and closing cycle test, resulting in low automation. Summary of the Invention

[0007] To address the problems of existing umbrella opening and closing testing equipment, such as the inability of the testing devices and methods to fully simulate the opening and closing of self-opening umbrellas, the inability to automatically detect and determine whether the umbrella rod spring is faulty during the opening and closing test, the lack of measurement of the umbrella sleeve stroke for self-opening umbrellas, and the cumbersome operation, a new opening and closing device and its testing method suitable for self-opening umbrellas is proposed.

[0008] The technical solution of the present invention is as follows:

[0009] I. An opening and closing device adapted to a self-opening umbrella

[0010] The device includes a frame; a clamping mechanism, fixedly mounted on the upper end of the frame and detachably connected to the self-opening umbrella handle, for clamping and fixing the self-opening umbrella handle; a pull-wire mechanism, mounted on the frame and detachably connected to the self-opening umbrella slide sleeve, for controlling the closing of the self-opening umbrella; a spring force detection mechanism, mounted on the bottom end of the frame and slidably connected to the pull-wire mechanism, for measuring the tension of the pull-wire mechanism when it tightens the self-opening umbrella slide sleeve; and an umbrella opening and closing force measuring mechanism, mounted on the upper end of the frame and arranged on one side of the clamping mechanism, and abutting against the self-opening umbrella switch button, for measuring the button force when the self-opening umbrella switch button is pressed.

[0011] The clamping mechanism includes a cylinder, a cylinder seat, a connector, a pin, two rotating arms, two rotating arm bearings, several rotating arm pins, several grippers, and gripper seats. The cylinder is fixedly mounted on the upper end of the frame via the cylinder seat. One end of the connector is hinged to the output shaft of the cylinder, and the other end of the connector is hinged to the middle of the pin. The pin is perpendicular to the connector. The two ends of the pin are respectively hinged to the driving ends of the two rotating arms. Each rotating arm has a limiting opening for opening and closing the grippers at its driven end. The gripper seats are fixed on the frame. A ring of internal teeth is formed inside the gripper seats. All grippers are evenly arranged circumferentially. Each gripper is not radially arranged. Each gripper has a toothed end and a biting end. The teeth at the toothed end of each gripper bend and extend towards the biting end. The toothed end of each gripper meshes with the internal teeth of the gripper seat. A rotating arm bearing and a rotating arm are arranged sequentially on both sides of each gripper. Each gripper is fixedly connected to the rotating arms on both sides via its own rotating arm pin and the rotating arm bearing.

[0012] The cable pulling mechanism includes a sliding sleeve clamping assembly, a cable pulling assembly, and a steel wire rope; the sliding sleeve clamping assembly is detachably connected to the self-opening umbrella sliding sleeve and is used to clamp the self-opening umbrella sliding sleeve; the cable pulling assembly is installed at the bottom of the frame and is fixedly connected to the sliding sleeve clamping assembly by the steel wire rope.

[0013] The sliding sleeve clamping assembly includes a clamp, a fixing block, and an optical shaft; the cable pulling assembly includes a fixing frame, a servo motor, a reducer, an electromagnetic clutch, a wire rope drum, a coil spring, a coil spring cover, a fixing cover, and a cable pulling sensor; the wire rope drum is provided with a drum end and a coil spring buckle end; the clamp is fixedly connected to the fixing block, and the clamp is also detachably connected to the self-opening umbrella sliding sleeve; the fixing block is provided with a groove for fixing and installing the optical shaft; the wire rope is fixedly connected to the optical shaft, and the other end is fixedly connected to the wire rope drum through a spring force detection mechanism; the fixing frame is fixedly installed at the bottom of the frame, and an electromagnetic clutch is arranged inside the fixing frame; the output shaft of the servo motor is connected to the input shaft of the reducer. The output shaft of the reducer is connected to the drum end of the wire rope drum via an electromagnetic clutch. The coil spring is fitted around the outer periphery of the coil spring buckle end of the wire rope drum, and the inner end of the coil spring is fixedly connected to the coil spring buckle end of the wire rope drum. The coil spring cover is fitted around the outside of the coil spring, and the outer end of the coil spring is fixedly connected to the buckle inside the coil spring cover. The fixing cover covers the wire rope drum, the coil spring, and the coil spring cover, and is fixedly connected to the side of the fixing frame away from the servo motor. The coil spring cover is also fixedly connected to the fixing cover to ensure the fixation of the outer end of the coil spring. The pull wire sensor is arranged on the side of the fixing cover away from the servo motor, and the output shaft of the pull wire sensor is connected to the coil spring buckle end of the wire rope drum.

[0014] The spring force detection mechanism includes a spring force detection base, a pulley block, and a spring force detection sensor. The spring force detection sensor is fixed to the bottom of the frame via the spring force detection base and is used to measure the spring force of the umbrella pole of the automatic umbrella. The pulley block is also fixed on the spring force detection base and is slidably connected to the wire rope to change the direction of the tension of the wire rope.

[0015] The umbrella opening and closing force measuring mechanism includes a pressing head, a force sensor, an electric push rod, and an electric push rod sleeve. The force sensor is installed inside the electric push rod sleeve. The output rod of the electric push rod extends into the interior of one end of the electric push rod sleeve and abuts against one end of the force sensor. One end of the pressing head extends into the interior of the other end of the electric push rod sleeve and abuts against the other end of the force sensor. The other end of the pressing head abuts against the self-opening umbrella switch button.

[0016] The self-opening umbrella opening and closing device also includes a camera, a host computer, and a PLC control system. The camera is installed on the upper end of the frame and arranged on one side of the umbrella opening and closing force measuring mechanism to capture images of the inner surface of the self-opening umbrella after it opens. The camera is electrically connected to the host computer. The PLC control system is electrically connected to the servo motor of the pull wire assembly, the electric push rod of the umbrella opening and closing force measuring mechanism, the force sensor of the umbrella opening and closing force measuring mechanism, the electromagnetic clutch of the pull wire assembly, the pull wire sensor of the pull wire assembly, the spring force detection mechanism, and the cylinder of the clamping mechanism. The PLC control system is also communicatively connected to the host computer.

[0017] II. A testing method for self-opening umbrella opening and closing devices

[0018] The testing method includes a fatigue testing method for the self-opening umbrella under test: the fatigue testing method for the self-opening umbrella under test includes a self-opening umbrella clamping and fixing stage, a parachute pole force measurement stage, a parachute slide travel measurement stage, a parachute slide retraction stage, and a parachute opening and closing cycle test stage.

[0019] The self-opening umbrella clamping and fixing stage specifically involves: installing the closed automatic umbrella to be tested on the opening and closing device adapted to the self-opening umbrella; clamping and fixing the umbrella handle of the automatic umbrella to be tested by controlling the gripper of the clamping mechanism; and clamping the self-opening umbrella sliding sleeve with the clamp of the sliding sleeve clamping assembly, so that the clamp is fixed to the self-opening umbrella sliding sleeve.

[0020] The umbrella opening force measurement stage specifically includes: Opening force measurement: By controlling the movement of the electric push rod of the umbrella opening force measurement mechanism, the pressing head is driven to press the opening button of the automatic umbrella under test. When the pull-cord sensor of the pull-cord assembly detects that the automatic umbrella under test has suddenly opened, the button force measured by the force sensor is the opening force. The PLC control system records the position of the electric push rod as the opening button position and controls the electric push rod to retract to its original position. If the automatic umbrella under test is a straight-rib umbrella, the closing force measurement is not performed. If the automatic umbrella under test is a folding umbrella, the closing force measurement is performed: By controlling the movement of the electric push rod of the umbrella opening force measurement mechanism, the pressing head is driven to press the opening button of the automatic umbrella under test. When the pull-cord sensor of the pull-cord assembly detects that the automatic umbrella under test has suddenly closed, the button force measured by the force sensor is the closing force. The PLC control system records the position of the electric push rod as the closing button position and controls the electric push rod to retract to its original position.

[0021] The umbrella slide travel measurement stage is as follows: when the canopy of the automatic umbrella under test is not open, the PLC control system records the value of the pull wire sensor of the pull wire assembly as the closed position of the umbrella slide of the automatic umbrella under test. When the opening and closing force measuring mechanism fully opens the automatic umbrella under test, the PLC control system records the value of the pull wire sensor of the pull wire assembly as the open position of the umbrella slide of the automatic umbrella under test. The difference between the open position and the closed position of the umbrella slide is taken as the umbrella slide travel.

[0022] The umbrella slide retraction stage is specifically as follows: when the automatic umbrella under test is a straight-rib umbrella fully opened or when the automatic umbrella under test is a folding umbrella with the canopy closed, the electromagnetic clutch of the pull cord assembly is activated, controlling the servo motor of the pull cord assembly to move, thereby driving the steel wire rope to pull the umbrella slide back together until the umbrella is fully closed; during the closing process, the maximum spring force measured by the spring force detection sensor is used as the umbrella rod spring force of the automatic umbrella under test.

[0023] The specific steps of the umbrella opening and closing cycle test are as follows:

[0024] S1. Initialize the number of times the umbrella opens and closes in a loop test.

[0025] S2. Control the electromagnetic clutch to de-energize and release, control the electric push rod to move to the umbrella opening button position, the umbrella surface opens, and the pull wire sensor measures the travel of the umbrella sleeve of the automatic umbrella under test.

[0026] S3. Determine whether the travel of the umbrella sleeve of the automatic umbrella under test is less than the preset umbrella sleeve travel threshold:

[0027] If the umbrella slide travel of the automatic umbrella under test is less than the preset umbrella slide travel threshold, the umbrella opening and closing cycle test ends and the automatic umbrella under test is a faulty umbrella.

[0028] If the umbrella slide travel of the automatic umbrella under test is greater than or equal to the preset umbrella slide travel threshold, the test continues.

[0029] The S4 and PLC control systems transmit image capture signals to the host computer, which then controls the camera to take pictures. The camera transmits the photos back to the host computer, which performs umbrella fault identification and detection based on the photos.

[0030] When a fault is detected, the umbrella opening and closing cycle test ends, and the automatic umbrella under test is a faulty umbrella.

[0031] When the test is fault-free, if the umbrella under test is a folding umbrella, the electric push rod is moved to the umbrella closing button position; if the umbrella under test is a straight-rib umbrella, the electric push rod does not need to be controlled. Then, the electromagnetic clutch of the pull cord assembly is energized and engaged, and the servo motor drives the steel wire rope to close the umbrella slide until it is closed. During the closing process, the spring force detection sensor measures the spring force of the umbrella shaft and determines whether the spring force is greater than the preset spring force threshold. If the spring force is greater than the preset spring force threshold, the umbrella opening and closing cycle test ends, and the umbrella under test is a faulty umbrella. If the spring force is less than or equal to the preset spring force threshold, one opening and closing cycle test is completed, and the number of opening and closing cycle tests is incremented by one.

[0032] S5. Determine whether the number of opening and closing cycle tests is greater than or equal to the preset opening and closing cycle test threshold:

[0033] If the number of opening and closing cycle tests is greater than or equal to the preset opening and closing cycle test threshold, the umbrella opening and closing cycle test ends, and the automatic umbrella under test is an umbrella that meets national standards.

[0034] If the number of opening and closing cycle tests is less than the preset opening and closing cycle test threshold, repeat steps S2-S4 above until the umbrella opening and closing cycle test ends.

[0035] The beneficial effects of the present invention.

[0036] 1. This invention solves the problem that the existing technology, which uses an active opening and closing method, cannot simulate the human-operated opening and closing of an automatic umbrella. It simulates the scenario of human use of an automatic umbrella in reality, making the umbrella opening and closing cycle test more consistent with real-world usage.

[0037] 2. The present invention solves the problem of the lack of technology for measuring the travel of umbrella slide in the prior art. It can measure the travel of umbrella slide in the umbrella opening and closing cycle test, and can also determine whether the spring at the top of the umbrella pole has failed.

[0038] 3. The sliding sleeve clamping component of the present invention is small, which reduces the interference on the overall structure of the umbrella during the umbrella opening and closing cycle test.

[0039] 4. This invention is simple to operate and highly efficient, and has outstanding advantages in the opening and closing cycle test of self-opening umbrellas. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0041] Figure 2 This is a structural diagram of the clamping mechanism of the present invention;

[0042] Figure 3 This is an exploded view of the clamping mechanism of the present invention;

[0043] Figure 4 This is a structural diagram of the draw wire assembly of the present invention;

[0044] Figure 5 This is an exploded view of the draw wire assembly of the present invention;

[0045] Figure 6 This is a structural diagram of the spring force detection mechanism of the present invention;

[0046] Figure 7 This is a structural diagram of the umbrella force measuring mechanism of the present invention;

[0047] Figure 8 This is a structural diagram of the sliding sleeve clamping assembly of the present invention;

[0048] Figure 9 This is an exploded view of the sliding sleeve clamping assembly of the present invention. Detailed Implementation

[0049] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments. However, the present invention is not limited thereto. For those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention. Contents not described in detail in this specification are prior art known to those skilled in the art.

[0050] The embodiments of the present invention are as follows:

[0051] like Figure 1As shown, the device includes a frame 1; a clamping mechanism 2, which is fixedly installed on the upper end of the frame 1 and detachably connected to the self-opening umbrella handle for clamping and fixing the self-opening umbrella handle; a pull-wire mechanism 3, which is installed on the frame 1 and detachably connected to the self-opening umbrella slide sleeve for controlling the closing of the self-opening umbrella; a spring force detection mechanism 4, which is installed at the bottom end of the frame 1 and slidably connected to the pull-wire mechanism 3 for measuring the tension of the pull-wire mechanism 3 when it tightens the self-opening umbrella slide sleeve; and a switch-opening force measuring mechanism 5, which is installed on the upper end of the frame 1 and arranged on one side of the clamping mechanism 2, and abuts against the self-opening umbrella switch button for measuring the button force when the self-opening umbrella switch button is pressed.

[0052] The self-opening umbrella handle is the part held by the user in an self-opening umbrella. The self-opening umbrella slide is the component that connects the umbrella ribs and the umbrella pole; the opening and closing function of the self-opening umbrella is achieved by controlling the sliding of the slide on the umbrella pole. The self-opening umbrella switch button is the button in an automatic umbrella that controls the opening and closing of the self-opening umbrella. Self-opening umbrellas include straight-rib self-opening umbrellas and folding self-opening umbrellas.

[0053] like Figure 2 and Figure 3 As shown, the clamping mechanism 2 includes a cylinder 21, a cylinder seat 22, a connector 23, a pin 24, two rotating arms 25, two rotating arm bearings 26, several rotating arm pins 27, several grippers 28, and a gripper seat 29. The cylinder 21 is fixedly mounted on the upper end of the frame 1 via the cylinder seat 22. One end of the connector 23 is hinged to the output shaft of the cylinder 21, and the other end of the connector 23 is hinged to the middle of the pin 24. The pin 24 is perpendicular to the connector 23. The two ends of the pin 24 are respectively hinged to the driving ends of the two rotating arms 25. Each rotating arm 25 has a limiting port for opening and closing the grippers 28 at its driven end. The gripper seat 29 is fixed on the frame 1. An internal toothed pattern is formed inside. All jaws 28 are evenly arranged circumferentially. Each jaw is arranged non-radially inclined. Each jaw 28 has a toothed end and a biting end. The toothed end of each jaw 28 bends and extends towards the biting end. The toothed end of each jaw 28 is engaged with the internal toothed pattern of the jaw seat 29. A swivel bearing 26 and a swivel arm 25 are arranged sequentially on both sides of the jaw 28. Each jaw 28 is fixedly connected to the swivel arms 25 on both sides through its own swivel pin 27 via the swivel bearing 26. Each swivel pin 27 is vertically fixedly connected to one swivel arm 25, two swivel bearings 26, one jaw 28 and another swivel arm 25 in sequence.

[0054] The cable pulling mechanism 3 includes a sliding sleeve clamping assembly 31, a cable pulling assembly 32, and a steel wire rope 33;

[0055] The sliding sleeve clamping assembly 31 is detachably connected to the self-opening umbrella sliding sleeve and is used to clamp the self-opening umbrella sliding sleeve, so that the self-opening umbrella sliding sleeve and the sliding sleeve clamping assembly 31 move synchronously; the pull cable assembly 32 is installed at the bottom of the frame 1 and is fixedly connected to the sliding sleeve clamping assembly 31 by a steel wire rope 33.

[0056] like Figure 4 , Figure 5 , Figure 8 and Figure 9 As shown, the sliding sleeve clamping assembly 31 includes a clamp 311, a fixing block 312, and an optical shaft 313; the wire pulling assembly 32 includes a fixing frame 321, a servo motor 322, a reducer 323, an electromagnetic clutch 324, a wire rope drum 325, a coil spring 326, a coil spring cover 327, a fixing cover 329, and a wire pulling sensor 328; the wire rope drum 325 is provided with a drum end and a coil spring buckle end.

[0057] The clamp 311 is fixedly connected to the fixing block 312. The clamp 311 is also detachably connected to the self-opening umbrella slide. The tightness of the clamp 311 and the self-opening umbrella slide is controlled by the tightening screw of the clamp 311. The fixing block 312 is provided with a groove for fixing and installing the optical shaft 313. The steel wire rope 33 is fixedly connected to the optical shaft 313, and the other end is fixedly connected to the steel wire rope drum 325 through the spring force detection mechanism 4. The section of steel wire rope 33 between the spring force detection mechanism 4 and the steel wire rope drum 325 is kept horizontal; the other section of steel wire rope 33 between the spring force detection mechanism 4 and the optical shaft 313 is kept vertical. The fixing frame 321 is fixedly installed at the bottom of the frame 1. The fixing frame 321 is equipped with an electromagnetic clutch 324. The output shaft of the servo motor 322 is connected to the input shaft of the reducer 323. The output shaft of the reducer 323 is connected to the input shaft of the reducer 323 through... The electromagnetic clutch 324 is driven to the drum end of the wire rope drum 325. The coil spring 326 is fitted around the outer periphery of the coil spring snap end of the wire rope drum 325. The inner end of the coil spring 326 is fixedly connected to the coil spring snap end of the wire rope drum 325. The coil spring cover 327 is fitted around the outside of the coil spring 326. The outer end of the coil spring 326 is fixedly connected to the snap provided inside the coil spring cover 327. The fixing cover 329 covers the wire rope drum 325, the coil spring 326 and the coil spring cover 327, and is fixedly connected to the side of the fixing frame 321 away from the servo motor 322. The coil spring cover 327 is also fixedly connected to the fixing cover 329 to ensure the fixation of the outer end of the coil spring 326. The pull wire sensor 328 is arranged on the side of the fixing cover 329 away from the servo motor 322. The output shaft of the pull wire sensor 328 is driven to the coil spring snap end of the wire rope drum 325.

[0058] like Figure 6As shown, the spring force detection mechanism 4 includes a spring force detection base 41, a pulley block 42, and a spring force detection sensor 43. The spring force detection sensor 43 is fixed to the bottom of the frame through the spring force detection base 41 and is used to measure the spring force of the umbrella pole of the automatic umbrella. The pulley block 42 is also fixed on the spring force detection base 41. The pulley block 42 is slidably connected to the wire rope 33 and is used to change the direction of the tension of the wire rope 33. Specifically, it keeps the tension of the wire rope 33 in the direction of the fixed connection between the wire rope 33 and the fixed block 312 vertical.

[0059] The force of the umbrella shaft spring is used to determine whether the umbrella shaft spring has failed.

[0060] like Figure 7 As shown, the umbrella force measuring mechanism 5 includes a pressing head 51, a force sensor 52, an electric push rod 53, and an electric push rod sleeve 54.

[0061] Force sensor 52 is installed inside electric push rod sleeve 54. The output rod of electric push rod 53 extends into the interior of one end of electric push rod sleeve 54 and abuts against one end of force sensor 52. One end of pressing head 51 extends into the interior of the other end of electric push rod sleeve 54 and abuts against the other end of force sensor 52. The other end of pressing head 51 abuts against the self-opening umbrella switch button.

[0062] The self-opening umbrella opening and closing device also includes a camera, a host computer, and a PLC control system. The camera is installed on the upper end of the frame 1 and arranged on one side of the umbrella opening and closing force measuring mechanism 5. It is used to photograph the inner surface of the self-opening umbrella after it opens. The camera is electrically connected to the host computer. The PLC control system is electrically connected to the servo motor 322 of the pull wire assembly 32, the electric push rod 53 of the umbrella opening and closing force measuring mechanism 5, the force sensor 52 of the umbrella opening and closing force measuring mechanism 5, the electromagnetic clutch 324 of the pull wire assembly 32, the pull wire sensor 328 of the pull wire assembly 32, the spring force detection mechanism 4, and the cylinder 21 of the clamping mechanism 2. The PLC control system is also communicatively connected to the host computer.

[0063] The host computer is equipped with an algorithm for identifying and detecting umbrella malfunctions.

[0064] Specific embodiments of the present invention are carried out according to the following detection methods:

[0065] The testing methods include fatigue testing methods for the self-opening umbrella under test: fatigue testing methods for the self-opening umbrella under test include the self-opening umbrella clamping and fixing stage, the opening and closing pole force measurement stage, the umbrella slide travel measurement stage, the umbrella slide retraction stage, and the umbrella opening and closing cycle test stage.

[0066] The self-opening umbrella clamping and fixing stage specifically involves: installing the closed automatic umbrella under test on an opening and closing device adapted to the self-opening umbrella; clamping and fixing the umbrella handle of the automatic umbrella under test by controlling the gripper 28 of the clamping mechanism 2; and clamping the clamp 311 of the sliding sleeve clamping assembly 31 with the self-opening umbrella sliding sleeve, so that the clamp 311 is fixed to the self-opening umbrella sliding sleeve.

[0067] The umbrella opening force measurement stage is as follows: Umbrella opening force measurement: The PLC control system controls the movement of the electric push rod 53 of the umbrella opening force measuring mechanism 5, which in turn drives the pressing head 51 to press the opening button of the automatic umbrella under test. The force sensor 52 measures the button force in real time. When the pull cable sensor 328 of the pull cable assembly 32 detects that the automatic umbrella under test suddenly opens, the button force measured by the force sensor 52 is the opening force. The PLC control system records the position of the electric push rod 53 as the opening button position and controls the electric push rod 53 to retract to its original position. If the automatic umbrella under test is a straight-rib umbrella... If the umbrella to be tested is a folding umbrella, then the umbrella closing force measurement is not performed. The PLC control system controls the movement of the electric push rod 53 of the umbrella opening and closing force measuring mechanism 5, which in turn drives the pressing head 51 to press the switch button of the automatic umbrella to be tested. The force sensor 52 measures the button force in real time. When the pull wire sensor 328 of the pull wire assembly 32 detects that the automatic umbrella to be tested suddenly closes, the button force measured by the force sensor 52 is the umbrella closing force. The PLC control system records the position of the electric push rod 53 as the umbrella closing button position and controls the electric push rod 53 to retract to its original position.

[0068] The umbrella slide travel measurement stage is as follows: when the umbrella canopy of the automatic umbrella under test is not open, the PLC control system records the value of the pull wire sensor 328 of the pull wire assembly 32 as the closed position of the umbrella slide of the automatic umbrella under test. When the opening and closing force measuring mechanism 5 fully opens the automatic umbrella under test, the PLC control system records the value of the pull wire sensor 328 of the pull wire assembly 32 as the open position of the umbrella slide of the automatic umbrella under test. The difference between the open position and the closed position of the umbrella slide is the umbrella slide travel.

[0069] During this process, the coil spring 326 inside the pull wire assembly 32 is continuously tightened, which plays a role in ensuring that the steel wire rope 33 is always in a taut state, so as to ensure that the accurate theoretical opening and closing stroke of the umbrella slide of the self-opening umbrella under test is obtained.

[0070] The umbrella slide retraction stage is as follows: when the automatic umbrella under test is a straight-rib umbrella fully opened or when the automatic umbrella under test is a folding umbrella with the canopy closed, the PLC control system activates the electromagnetic clutch 324 of the pull cable assembly 32. The PLC control system controls the servo motor 322 of the pull cable assembly 32 to move, thereby driving the steel wire rope 33 to pull the umbrella slide back together until the umbrella is fully closed. During the closing process, the maximum spring force measured by the spring force detection sensor 43 is taken as the umbrella rod spring force of the automatic umbrella under test.

[0071] The specific steps of the umbrella opening and closing cycle test are as follows:

[0072] S1. Initialize the number of times the umbrella opens and closes in a loop test.

[0073] S2, the PLC control system controls the electromagnetic clutch 324 to de-energize and release, controls the electric push rod 53 to move to the umbrella opening button position, the umbrella surface opens, and the pull wire sensor 328 measures the travel of the umbrella sleeve of the automatic umbrella under test.

[0074] S3. Determine whether the travel of the umbrella sleeve of the automatic umbrella under test is less than the preset umbrella sleeve travel threshold:

[0075] If the umbrella slide travel of the automatic umbrella under test is less than the preset umbrella slide travel threshold, the umbrella opening and closing cycle test ends and the automatic umbrella under test is marked as a faulty umbrella.

[0076] If the umbrella slide travel of the automatic umbrella under test is greater than or equal to the preset umbrella slide travel threshold, the test continues.

[0077] The S4 and PLC control systems transmit image capture signals to the host computer, which then controls the camera to take pictures. The camera transmits the photos back to the host computer, which performs umbrella fault identification and detection based on the photos.

[0078] When a fault is detected, the host computer transmits an alarm and shutdown command to the PLC control system, the umbrella opening and closing cycle test ends, and the automatic umbrella under test is marked as a faulty umbrella.

[0079] When the test is fault-free, if the umbrella under test is a folding umbrella, the PLC control system controls the electric push rod 53 to move to the umbrella closing button position. If the umbrella under test is a straight umbrella, the electric push rod 53 does not need to be controlled. Then, the PLC control system controls the electromagnetic clutch 324 of the pull cord assembly 32 to be energized and engaged. The servo motor 322 drives the steel wire rope 33 to close the umbrella slide until the umbrella is closed. During the closing process, the spring force detection sensor 43 measures the umbrella rod spring force of the umbrella under test and determines whether the umbrella rod spring force is greater than the preset umbrella rod spring force threshold. If the umbrella rod spring force is greater than the preset umbrella rod spring force threshold, the umbrella opening and closing cycle test ends and the umbrella under test is marked as a faulty umbrella. If the umbrella rod spring force is less than or equal to the preset umbrella rod spring force threshold, one opening and closing cycle test is completed and the number of opening and closing cycle tests is incremented by one.

[0080] S5. Determine whether the number of opening and closing cycle tests is greater than or equal to the preset opening and closing cycle test threshold:

[0081] If the number of opening and closing cycle tests is greater than or equal to the preset opening and closing cycle test threshold, the umbrella opening and closing cycle test ends, and the automatic umbrella under test is marked as an umbrella that meets national standards.

[0082] If the number of opening and closing cycle tests is less than the preset opening and closing cycle test threshold, repeat steps S2-S4 above until the umbrella opening and closing cycle test ends.

Claims

1. An opening and closing device adapted to a self-opening umbrella, characterized in that: Including rack (1); Includes a clamping mechanism (2), which is fixedly installed on the upper end of the frame (1) and detachably connected to the self-opening umbrella handle, for clamping and fixing the self-opening umbrella handle; Includes a pull-wire mechanism (3), which is mounted on the frame (1) and detachably connected to the self-opening umbrella slide sleeve, for controlling the closing of the self-opening umbrella; The wire pulling mechanism (3) includes a sliding sleeve clamping assembly (31), a wire pulling assembly (32), and a steel wire rope (33). Includes a spring force detection mechanism (4), which is installed at the bottom of the frame (1) and slidably connected to the wire pulling mechanism (3) for measuring the tension of the wire pulling mechanism (3) when it tightens the self-opening umbrella sliding sleeve; Includes an umbrella opening force measuring mechanism (5), which is installed on the upper end of the frame (1) and arranged on one side of the clamping mechanism (2), and abuts against the self-opening umbrella switch button, for measuring the button force when the self-opening umbrella switch button is pressed; The spring force detection mechanism (4) includes a spring force detection base (41), a pulley block (42), and a spring force detection sensor (43). The spring force detection sensor (43) is fixed to the bottom of the frame through the spring force detection base (41) and is used to measure the spring force of the umbrella pole of the automatic umbrella. The pulley block (42) is also fixed on the spring force detection base (41). The pulley block (42) is slidably connected to the wire rope (33) and is used to change the direction of the tension of the wire rope (33). The umbrella opening and closing force measuring mechanism (5) includes a pressing head (51), a force sensor (52), an electric push rod (53), and an electric push rod sleeve (54). The force sensor (52) is installed inside the electric push rod sleeve (54). The output rod of the electric push rod (53) extends into the interior of one end of the electric push rod sleeve (54) and abuts against one end of the force sensor (52). One end of the pressing head (51) extends into the interior of the other end of the electric push rod sleeve (54) and abuts against the other end of the force sensor (52). The other end of the pressing head (51) abuts against the self-opening umbrella switch button.

2. The opening and closing device adapted to a self-opening umbrella according to claim 1, characterized in that: The clamping mechanism (2) includes a cylinder (21), a cylinder seat (22), a connector (23), a pin (24), two rotating arms (25), two rotating arm bearings (26), several rotating arm pins (27), several grippers (28), and gripper seats (29). The cylinder (21) is fixedly mounted on the upper end of the frame (1) via the cylinder seat (22). One end of the connector (23) is hinged to the output shaft of the cylinder (21), and the other end of the connector (23) is hinged to the middle of the pin (24). The pin (24) is perpendicular to the connector (23). The two ends of the pin (24) are respectively hinged to the driving ends of the two rotating arms (25). Each rotating arm (25) has a driven end with an opening. There is a limiting opening for opening and closing of the gripper (28). The gripper seat (29) is fixed on the frame (1). A ring of internal teeth is opened inside the gripper seat (29). All grippers (28) are evenly arranged in the circumferential direction. Each gripper is not radially arranged. Each gripper (28) is provided with a toothed end and a biting end. The toothed end of each gripper (28) bends and extends towards the biting end. The toothed end of each gripper (28) is engaged with the internal teeth of the gripper seat (29). A swivel bearing (26) and a swivel arm (25) are arranged in sequence on both sides of the gripper (28). Each gripper (28) is fixedly connected to the swivel arm (25) on both sides through the swivel bearing (26) via its respective swivel pin (27).

3. The opening and closing device adapted to a self-opening umbrella according to claim 2, characterized in that: The sliding sleeve clamping assembly (31) is detachably connected to the self-opening umbrella sliding sleeve and is used to clamp the self-opening umbrella sliding sleeve. The pull wire assembly (32) is installed at the bottom of the frame (1), and the pull wire assembly (32) is fixedly connected to the sliding sleeve clamping assembly (31) by a steel wire rope (33).

4. The opening and closing device adapted to a self-opening umbrella according to claim 3, characterized in that: The sliding sleeve clamping assembly (31) includes a clamp (311), a fixing block (312), and an optical axis (313); the wire pulling assembly (32) includes a fixing frame (321), a servo motor (322), a reducer (323), an electromagnetic clutch (324), a wire rope drum (325), a coil spring (326), a coil spring cover (327), a fixing cover (329), and a wire pulling sensor (328); the wire rope drum (325) is provided with a drum end and a coil spring buckle end; the clamp (311) and the fixing block (312) are connected to the wire pulling assembly (323). 12) Fixed connection, the clamp (311) is also detachably connected to the self-opening umbrella sliding sleeve, the fixing block (312) is provided with a groove for fixing and installing the optical shaft (313), the steel wire rope (33) is fixedly connected to the optical shaft (313), and the other end is fixedly connected to the steel wire rope drum (325) through the spring force detection mechanism (4); the fixing frame (321) is fixedly installed at the bottom of the frame (1), and an electromagnetic clutch (324) is arranged inside the fixing frame (321). The output shaft of the servo motor (322) is connected to the reducer (324). 3) The input shaft of the reducer (323) is connected to the output shaft of the wire rope drum (325) via an electromagnetic clutch (324). The coil spring (326) is fitted around the outer periphery of the coil spring buckle end of the wire rope drum (325). The inner end of the coil spring (326) is fixedly connected to the coil spring buckle end of the wire rope drum (325). The coil spring cover (327) is fitted around the coil spring (326). The outer end of the coil spring (326) is fixedly connected to the buckle provided inside the coil spring cover (327). The fixed cover ( 329) covers the wire rope drum (325), coil spring (326) and coil spring cover (327) and is fixedly connected to the side of the fixing frame (321) away from the servo motor (322). The coil spring cover (327) is also fixedly connected to the fixing cover (329) to ensure the fixation of the outer end of the coil spring (326). The pull wire sensor (328) is arranged on the side of the fixing cover (329) away from the servo motor (322). The output shaft of the pull wire sensor (328) is connected to the coil spring buckle end of the wire rope drum (325) for transmission.

5. The opening and closing device adapted to a self-opening umbrella according to claim 4, characterized in that: The self-opening umbrella opening and closing device also includes a camera, a host computer and a PLC control system; the camera is installed on the upper end of the frame (1) and arranged on one side of the umbrella opening and closing force measuring mechanism (5) for taking pictures of the inner surface of the self-opening umbrella after it opens, and the camera is electrically connected to the host computer; the PLC control system is electrically connected to the servo motor (322) of the pull wire assembly (32), the electric push rod (53) of the umbrella opening and closing force measuring mechanism (5), the force sensor (52) of the umbrella opening and closing force measuring mechanism (5), the electromagnetic clutch (324) of the pull wire assembly (32), the pull wire sensor (328) of the pull wire assembly (32), the spring force detection mechanism (4) and the cylinder (21) of the clamping mechanism (2), and the PLC control system is also communicatively connected to the host computer.

6. The detection method for an opening and closing device adapted to a self-opening umbrella as described in claim 5, characterized in that: The testing method includes a fatigue testing method for the self-opening umbrella under test: the fatigue testing method for the self-opening umbrella under test includes a self-opening umbrella clamping and fixing stage, a parachute pole force measurement stage, a parachute slide travel measurement stage, a parachute slide retraction stage, and a parachute opening and closing cycle test stage.

7. The detection method for an opening and closing device adapted to a self-opening umbrella according to claim 6, characterized in that: The self-opening umbrella clamping and fixing stage specifically involves: installing the closed automatic umbrella to be tested on the opening and closing device adapted to the self-opening umbrella; clamping and fixing the umbrella handle of the automatic umbrella to be tested by controlling the jaws (28) of the clamping mechanism (2); clamping the clamp (311) of the sliding sleeve clamping assembly (31) with the self-opening umbrella sliding sleeve, so that the clamp (311) is fixed to the self-opening umbrella sliding sleeve; The specific steps of the umbrella opening force measurement stage are as follows: umbrella opening force measurement: by controlling the movement of the electric push rod (53) of the umbrella opening force measurement mechanism (5), the pressing head (51) is driven to press the switch button of the automatic umbrella under test. When the pull sensor (328) of the pull wire assembly (32) detects that the automatic umbrella under test suddenly opens, the button force measured by the force sensor (52) is the umbrella opening force. The PLC control system records the position of the electric push rod (53) as the position of the umbrella opening button and controls the electric push rod (53) to retract to its original position. If the automatic umbrella under test is a straight-rib umbrella... The umbrella will not be closed by force measurement. If the umbrella to be tested is a folding umbrella, the umbrella closing force measurement will be performed: by controlling the movement of the electric push rod (53) of the umbrella opening and closing force measuring mechanism (5), the pressing head (51) will press the switch button of the automatic umbrella to be tested. When the pull line sensor (328) of the pull line assembly (32) detects that the automatic umbrella to be tested is suddenly closed, the button force measured by the force sensor (52) is the closing force. The PLC control system records the position of the electric push rod (53) as the closing button position and controls the electric push rod (53) to retract to the original position. The umbrella slide travel measurement stage is as follows: when the umbrella canopy of the automatic umbrella under test is not open, the PLC control system records the value of the pull wire sensor (328) of the pull wire assembly (32) as the closed position of the umbrella slide of the automatic umbrella under test. When the opening and closing force measuring mechanism (5) fully opens the automatic umbrella under test, the PLC control system records the value of the pull wire sensor (328) of the pull wire assembly (32) as the open position of the umbrella slide of the automatic umbrella under test. The difference between the open position and the closed position of the umbrella slide is the umbrella slide travel. The umbrella slide retraction stage is as follows: when the automatic umbrella under test is a straight umbrella fully opened or when the automatic umbrella under test is a folding umbrella with the canopy closed, the electromagnetic clutch (324) of the pull cord assembly (32) is activated, and the servo motor (322) of the pull cord assembly (32) is controlled to move, thereby driving the steel wire rope (33) to pull the umbrella slide together to retract until the umbrella is completely closed; during the closing process, the maximum spring force measured by the spring force detection sensor (43) is used as the umbrella rod spring force of the automatic umbrella under test.

8. The detection method for an opening and closing device adapted to a self-opening umbrella according to claim 6, characterized in that, The specific steps of the umbrella opening and closing cycle test are as follows: S1. Initialize the number of parachute opening and closing cycle tests; S2. Control the electromagnetic clutch (324) to de-energize and release, control the electric push rod (53) to move to the umbrella opening button position, the umbrella surface opens, and the pull wire sensor (328) measures the umbrella sleeve travel of the automatic umbrella under test; S3. Determine whether the travel of the umbrella sleeve of the automatic umbrella under test is less than the preset umbrella sleeve travel threshold: If the umbrella slide travel of the automatic umbrella under test is less than the preset umbrella slide travel threshold, the umbrella opening and closing cycle test ends and the automatic umbrella under test is a faulty umbrella. If the umbrella slide travel of the automatic umbrella under test is greater than or equal to the preset umbrella slide travel threshold, the test continues. The S4 and PLC control systems transmit image capture signals to the host computer, which then controls the camera to take pictures. The camera transmits the photos back to the host computer, which performs umbrella fault identification and detection based on the photos. When a fault is detected, the umbrella opening and closing cycle test ends, and the automatic umbrella under test is a faulty umbrella. When the test is fault-free, if the automatic umbrella under test is a folding umbrella, the electric push rod (53) is controlled to move to the umbrella closing button position. If the automatic umbrella under test is a straight umbrella, the electric push rod (53) does not need to be controlled. Then the electromagnetic clutch (324) of the pull cord assembly (32) is energized and engaged. The servo motor (322) drives the steel wire rope (33) to close the umbrella slide until the umbrella is closed. During the closing process, the spring force detection sensor (43) measures the umbrella rod spring force of the automatic umbrella under test and determines whether the umbrella rod spring force is greater than the preset umbrella rod spring force threshold. If the umbrella rod spring force is greater than the preset umbrella rod spring force threshold, the umbrella opening and closing cycle test ends and the automatic umbrella under test is a faulty umbrella. If the umbrella rod spring force is less than or equal to the preset umbrella rod spring force threshold, one opening and closing cycle test is completed and the number of opening and closing cycle tests is increased by one. S5. Determine whether the number of opening and closing cycle tests is greater than or equal to the preset opening and closing cycle test threshold: If the number of opening and closing cycle tests is greater than or equal to the preset opening and closing cycle test threshold, the umbrella opening and closing cycle test ends, and the automatic umbrella under test meets the requirements. If the number of opening and closing cycle tests is less than the preset opening and closing cycle test threshold, repeat steps S2-S4 above until the umbrella opening and closing cycle test ends.

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