Umbrella opening and closing fatigue testing device

Abstract

The utility model provides an umbrella opening and closing fatigue testing device, which belongs to the technical field of umbrella detection, and comprises a rack, an umbrella handle clamp, an umbrella handle, an umbrella handle, an umbrella handle and an umbrella handle, the opening and closing executing mechanism comprises a driving element and an executing element, the driving element is fixedly connected with the rack, and the executing element is connected with the driving element; the sliding sleeve clamp is connected with the execution element through the force sensor, and the driving element can drive the sliding sleeve clamp to do linear reciprocating motion through the execution element; the force sensor is set to control the driving element to stop when detecting that a force value is greater than or less than a preset force value range; the umbrella opening and closing fatigue testing device has the beneficial effects that the umbrella opening and closing fatigue testing device can be used for carrying out opening and closing fatigue testing on the umbrella, the umbrella locking or damage condition can be identified in the testing process, and then the machine is stopped in time, so that the upper limit of the opening and closing times and the actual service life of the umbrella can be accurately detected.

Description

Technical Field

[0001] This utility model belongs to the field of umbrella testing technology and relates to an umbrella opening and closing fatigue testing device. Background Technology

[0002] The number of times an umbrella can be opened and closed is a key performance indicator for measuring its lifespan and durability. After the umbrella is designed, it must undergo rigorous fatigue testing to assess its stability and reliability during long-term use. Traditional testing methods usually rely on manual operation, where workers manually and repeatedly open and close the umbrella to simulate the frequent operations that may occur in daily use.

[0003] However, this traditional manual testing method has many drawbacks. First, because testing requires long hours and repetitive operations, it is extremely labor-intensive for workers, easily leading to fatigue and affecting testing efficiency and accuracy. Second, manual operation makes it difficult to maintain consistency in the force, speed, and angle of each opening and closing, resulting in significant deviations in test data and failing to accurately reflect the product's performance under standardized conditions.

[0004] There may be a very small number of devices in the existing technology that can perform opening and closing tests on umbrellas. However, these devices are rather rigid in their testing methods and cannot identify whether the umbrella is stuck or damaged during the test. They can only mechanically stop after a certain number of opening and closing cycles and then manually check whether the umbrella is damaged. Therefore, they cannot accurately detect the upper limit of the number of opening and closing cycles of the umbrella and its actual service life. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a fatigue testing device for umbrella opening and closing.

[0006] The objective of this utility model can be achieved through the following technical solution: A fatigue testing device for umbrella opening and closing, comprising:

[0007] A frame, on which an umbrella handle clamp is provided;

[0008] An opening and closing actuator, comprising a drive element and an actuator, wherein the drive element is fixedly connected to the frame and the actuator is connected to the drive element;

[0009] A sliding clamp is provided, which is connected to the actuator via a force sensor. The drive element can drive the sliding clamp to perform linear reciprocating motion via the actuator. The force sensor is configured to control the drive element to stop when it detects a force value greater than or less than a predetermined force value range.

[0010] Preferably, the umbrella handle clamp includes a first contour block and a second contour block, the first contour block being detachably connected to the frame, the second contour block being detachably connected to the first contour block, the first contour block and the second contour block being assembled together to form an umbrella handle clamping hole between them that conforms to the cross-sectional shape of the umbrella handle.

[0011] Preferably, the sliding sleeve clamp includes a third contour block, a fourth contour block, and an adapter plate. The adapter plate is connected to the force sensor. The third contour block is detachably connected to the adapter plate. The fourth contour block is detachably connected to the third contour block. The third contour block and the fourth contour block are assembled together, and a sliding sleeve clamping hole that is consistent with the cross-section of the umbrella sliding sleeve is formed between them.

[0012] Preferably, the driving element is configured as a cylinder, the actuating element is configured as a movable seat, the movable seat is connected to the piston of the cylinder, and the force sensor is connected to the movable seat.

[0013] Preferably, the movable seat extends in a direction perpendicular to the movement of the cylinder piston, one end of the movable seat is connected to the piston of the cylinder and the other end is connected to the sliding sleeve clamp through the force sensor, so that the sliding sleeve clamp is misaligned with the cylinder.

[0014] Preferably, a magnetic ring is installed on the piston of the cylinder, and a magnetic switch is provided on the cylinder barrel. The magnetic switch is configured to issue a command to change the running direction of the cylinder piston when it detects the magnetic field of the magnetic ring.

[0015] Preferably, the magnetic switch is slidably connected to or detachably connected to the cylinder barrel of the cylinder.

[0016] Preferably, the driving element is a motor, and the actuating element is a crank-slider mechanism. The actuating element includes a crank, a connecting rod, and a slider. The crank is rotatably connected to the frame via a rotating shaft, which is connected to the motor. The motor can drive the crank to rotate around the rotating shaft. One end of the connecting rod is hinged to the crank, and the other end is hinged to the slider. The slider is slidably mounted on the frame, and the sliding sleeve clamp is connected to the slider via the force sensor.

[0017] Preferably, the frame is provided with a guide rod, and the slider is slidably sleeved on the guide rod, the guide rod constraining the slider's degree of freedom in its radial direction.

[0018] Preferably, the frame is provided with a plurality of spray heads, and the frame has a test area located below the umbrella to be tested, with the spray heads close to the test area.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. A device is provided that can perform opening and closing fatigue testing on umbrellas, which can identify whether the umbrella is stuck or damaged during the test and then stop the machine in time, thereby accurately detecting the upper limit of the number of opening and closing cycles of the umbrella and its actual service life.

[0021] 2. By installing a magnetic ring on the cylinder piston and placing a magnetic switch (such as a reed switch or Hall sensor) on the outside of the cylinder barrel, precise detection of the cylinder piston position can be achieved. When the magnetic ring moves with the piston to the vicinity of the magnetic switch, the magnetic switch senses the change in magnetic field and sends a signal. The control system then changes the direction of the cylinder piston's movement accordingly. Furthermore, by adjusting the position of the magnetic switch on the cylinder barrel, the stroke range of the cylinder piston can be flexibly set, thereby enabling adaptation testing for the opening and closing of different types and styles of umbrellas.

[0022] 3. The shower head can simulate the distribution of water droplets and the impact of water flow during rain, testing the opening and closing performance of umbrellas in a wet state, which helps to detect problems such as material aging, corrosion, and lubrication failure. In addition, it can also test the waterproof ability of the umbrella fabric and the guiding effect of the umbrella rib structure on water flow. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0024] Figure 2 This is a structural schematic diagram from another perspective of Embodiment 1 of this utility model.

[0025] Figure 3 This is a schematic diagram of the umbrella handle clamp and sliding sleeve clamp of this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0027] Figure 5 This is a schematic diagram of the structure of the actuator in Embodiment 2 of this utility model.

[0028] In the diagram, 100 is the frame; 110 is the spray head; 200 is the umbrella handle clamp; 210 is the first contour block; 220 is the second contour block; 230 is the umbrella handle clamping hole; 310 is the cylinder; 320 is the motor; 410 is the moving seat; 420 is the crank; 430 is the connecting rod; 440 is the slider; 450 is the guide rod; 500 is the sliding sleeve clamp; 510 is the third contour block; 520 is the fourth contour block; 530 is the sliding sleeve clamping hole; 540 is the adapter plate; and 600 is the force sensor. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] like Figures 1 to 5 As shown, an umbrella opening and closing fatigue testing device includes:

[0031] The frame 100 is equipped with an umbrella handle clamp 200.

[0032] The opening and closing actuator includes a drive element and an actuator element. The drive element is fixedly connected to the frame 100, and the actuator element is connected to the drive element.

[0033] The sliding clamp 500 is connected to the actuator via a force sensor 600. The drive element can drive the sliding clamp 500 to perform linear reciprocating motion via the actuator. The force sensor 600 is set to control the drive element to stop when it detects a force value greater than or less than a predetermined force value range.

[0034] This device can simulate the opening and closing motion of an umbrella during real-world use and achieve automated control through sensor feedback. The frame 100 serves as the basic structure of the entire device, supporting other components. The umbrella handle clamp 200 secures the umbrella handle, ensuring the umbrella does not shift during testing. The drive element transmits power to the sliding sleeve clamp 500 via the actuator, causing it to reciprocate linearly, thus simulating the opening and closing motion of the umbrella (the umbrella sliding sleeve is not locked during testing, so repeated unlocking is unnecessary). The sliding sleeve clamp 500 holds the sliding sleeve portion of the umbrella (i.e., the part that moves during opening and closing) and is connected to the actuator via a force sensor 600.

[0035] Force sensor 600 can monitor the force on the sliding clamp 500 in real time during its movement. If an abnormality occurs (such as the umbrella jamming or breaking), the force value will exceed the set range. Using this principle, when the force value detected by force sensor 600 exceeds the predetermined range (too large or too small), it means that the number of times the umbrella has been opened and closed has reached the upper limit of use and is damaged. That is, force sensor 600 accurately identifies the jamming or damage of the umbrella during the test. Then, the signal sent by force sensor 600 causes the drive element to stop running, and the control system records the number of times the actuator slides back and forth (i.e., the number of times the umbrella opens and closes). Subsequently, the fatigue life of the umbrella can be evaluated by data such as the number of opening and closing times and changes in force value.

[0036] A device is provided that can perform opening and closing fatigue testing on umbrellas. It can identify whether the umbrella is stuck or damaged during the test and then stop the machine in time, thereby accurately detecting the upper limit of the number of opening and closing cycles and the actual service life of the umbrella.

[0037] It should also be noted that this device can perform fatigue tests continuously, reducing manual intervention and improving testing efficiency. The introduction of the force sensor 600 enables closed-loop control, allowing for timely detection of abnormalities and shutdown, thus terminating the current test. Through a force feedback mechanism, intelligent control and fault warning are achieved, offering advantages such as high automation, high testing accuracy, and good safety, thereby improving the efficiency of umbrella fatigue testing.

[0038] like Figures 1 to 3 As shown, based on the above embodiment, the umbrella handle clamp 200 includes a first contour block 210 and a second contour block 220. The first contour block 210 is detachably connected to the frame 100, and the second contour block 220 is detachably connected to the first contour block 210. The first contour block 210 and the second contour block 220 are assembled together and form an umbrella handle clamping hole 230 between them that is consistent with the cross-sectional shape of the umbrella handle.

[0039] The umbrella handle clamp 200 consists of two detachable contour blocks. Since different models and specifications of umbrellas have different handle shapes, the shape and size of the clamping hole can be quickly adjusted by replacing the first contour block 210 and the second contour block 220 with different shapes to accommodate various handle structures. Furthermore, the handle clamping hole 230 matches the cross-sectional shape of the handle, effectively preventing displacement, rotation, or slippage of the handle during testing, ensuring accurate and reliable test data.

[0040] Based on the above embodiments, the sliding sleeve clamp 500 includes a third contour block 510, a fourth contour block 520, and an adapter plate 540. The adapter plate 540 is connected to the force sensor 600. The third contour block 510 is detachably connected to the adapter plate 540. The fourth contour block 520 is detachably connected to the third contour block 510. The third contour block 510 and the fourth contour block 520 are assembled together, and a sliding sleeve clamping hole 530 with the same cross-section as the umbrella sliding sleeve is formed between them.

[0041] The slide clamp 500 consists of two detachable contour blocks. Since different models and specifications of umbrellas have different slide shapes, the shape and size of the clamping hole can be quickly adjusted by replacing the third contour block 510 and the fourth contour block 520 with different shapes to adapt to various slide structures. Furthermore, the slide clamping hole 530 matches the cross-sectional shape of the slide, effectively clamping the slide and preventing displacement, rotation, or slippage during testing, ensuring accurate and reliable test data.

[0042] Example 1:

[0043] like Figures 1 to 3 As shown, the driving element is set as cylinder 310, the actuating element is set as moving seat 410, the moving seat 410 is connected to the piston of cylinder 310, and the force sensor 600 is connected to moving seat 410.

[0044] In this embodiment, cylinder 310 pushes the piston rod to extend, causing the movable seat 410 to move forward. The sliding sleeve clamp 500 pushes the umbrella sliding sleeve forward to achieve the "opening umbrella" action. Cylinder 310 retracts the piston rod, causing the movable seat 410 to retract. The sliding sleeve clamp 500 pulls the umbrella sliding sleeve to achieve the "closing umbrella" action. Force sensor 600 is electrically connected to the solenoid valve or motor of cylinder 310 through the control system. If an abnormal force value is detected, the solenoid valve or motor controls cylinder 310 to stop moving.

[0045] Based on the above implementation, the movable seat 410 extends in a direction perpendicular to the piston movement of the cylinder 310. One end of the movable seat 410 is connected to the piston of the cylinder 310, and the other end is connected to the sliding sleeve clamp 500 through the force sensor 600, so that the sliding sleeve clamp 500 is misaligned with the cylinder 310.

[0046] After the sliding sleeve clamp 500 is separated from the cylinder 310, it is convenient to load, unload and replace the umbrella. This separation design also makes it easier to avoid water spraying onto the piston of the cylinder 310 when the subsequent spray head 110 sprays water onto the umbrella.

[0047] Based on the above implementation, a magnetic ring is installed on the piston of cylinder 310, and a magnetic switch is provided in the cylinder barrel of cylinder 310. The magnetic switch is configured to issue a command to change the running direction of the piston of cylinder 310 when the magnetic field of the magnetic ring is detected.

[0048] A magnetic ring is installed on the piston of cylinder 310, and a magnetic switch (such as a reed switch or Hall sensor) is set on the outside of the cylinder to achieve accurate detection of the piston position of cylinder 310. When the magnetic ring moves with the piston to the vicinity of the magnetic switch, the magnetic switch senses the change in magnetic field and sends a signal, and the control system changes the running direction of the piston of cylinder 310 accordingly (for example, from extension to retraction, or vice versa).

[0049] Position detection can be completed without physical contact between the magnetic switch and the magnetic ring. The magnetic ring is directly fitted onto the piston rod, and the magnetic switch is installed on the outside of the cylinder. No complex wiring or internal modifications are required. The magnetic switch directly controls the solenoid valve's reversal, achieving a "self-circulating" action (such as automatic reciprocating motion), reducing the complexity of the control system. Most importantly, by adjusting the position of the magnetic switch on the cylinder 310, the stroke range of the piston in cylinder 310 can be flexibly set, thereby enabling adaptation for opening and closing tests of different types and styles of umbrellas.

[0050] Based on the above implementation method, the magnetic switch is slidably or detachably connected to the cylinder barrel of the cylinder 310. The position of the magnetic switch on the cylinder 310 can be adjusted by sliding or detaching, so the position of the magnetic switch can be adjusted at any time according to the opening and closing stroke requirements of different umbrellas, improving the versatility of the equipment.

[0051] Example 2:

[0052] like Figure 4 , Figure 5 As shown, the driving element is a motor 320, and the actuating element is a crank-slider mechanism. The actuating element includes a crank 420, a connecting rod 430, and a slider 440. The crank 420 is rotatably connected to the frame 100 via a rotating shaft, which is connected to the motor 320. The motor 320 can drive the crank 420 to rotate around the rotating shaft. One end of the connecting rod 430 is hinged to the crank 420, and the other end is hinged to the slider 440. The slider 440 is slidably mounted on the frame 100. The sliding sleeve clamp 500 is connected to the slider 440 via a force sensor 600.

[0053] In Embodiment 2, a motor 320 is used as the driving element, and a crank-slider mechanism is used to realize linear reciprocating motion. The motor 320 provides the power source and drives the rotating shaft to rotate. The crank 420 is rotatably connected to the frame 100 through the rotating shaft. The connecting rod 430 connects the crank 420 and the slider 440, transmits the rotational motion and converts it into reciprocating motion. The slider 440 can slide linearly on the frame 100 along the guide rail and is the final actuator, driving the sliding sleeve clamp 500 to move.

[0054] The advantage of Embodiment 2 is that the motor 320 drives the crank 420 to rotate around the shaft. For each rotation of the crank 420, the slider 440 completes one reciprocating stroke of extending and retracting. Moreover, the crank-slider mechanism has a natural non-uniform speed characteristic when simulating the opening and closing motion of the umbrella, which is exactly in line with the motion law of the umbrella slide in actual use. It can more realistically simulate the user's "opening and closing habits" and make the test results more valuable.

[0055] Based on the above implementation, the frame 100 is provided with a guide rod 450, and the slider 440 is slidably sleeved on the guide rod 450. The guide rod 450 constrains the slider 440's degree of freedom in its radial direction.

[0056] like Figure 1 , Figure 2 As shown, based on the above embodiment, a plurality of spray heads 110 are provided on the frame 100, and the frame 100 has a test area located below the umbrella to be tested, with the spray heads 110 close to the test area.

[0057] Several spray heads 110 are installed on the frame 100 to simulate the effects of rain in actual use environments, making the testing process closer to real-world scenarios and thus improving the reliability and practicality of the test results. Specifically, the spray heads 110 can simulate the distribution of water droplets and the impact of water flow during rain, testing the opening and closing performance of umbrellas in a wet state, which helps to identify problems such as material aging, corrosion, and lubrication failure. In addition, it can also test the waterproofing ability of the umbrella fabric and the water flow guidance effect of the umbrella rib structure.

[0058] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0059] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A device for testing the opening and closing fatigue of an umbrella, characterized in that, include: A frame (100) on which an umbrella handle clamp (200) is provided; An opening and closing actuator, comprising a drive element and an actuator, wherein the drive element is fixedly connected to the frame (100) and the actuator is connected to the drive element; A sliding clamp (500) is connected to the actuator via a force sensor (600). The drive element can drive the sliding clamp (500) to perform linear reciprocating motion via the actuator. The force sensor (600) is configured to control the drive element to stop when it detects a force value greater than or less than a predetermined force value range.

2. The umbrella opening and closing fatigue testing device as described in claim 1, characterized in that: The umbrella handle clamp (200) includes a first contour block (210) and a second contour block (220). The first contour block (210) is detachably connected to the frame (100), and the second contour block (220) is detachably connected to the first contour block (210). The first contour block (210) and the second contour block (220) are assembled together and form an umbrella handle clamping hole (230) between them that conforms to the cross-sectional shape of the umbrella handle.

3. The umbrella opening and closing fatigue testing device as described in claim 1, characterized in that: The sliding sleeve clamp (500) includes a third contour block (510), a fourth contour block (520), and an adapter plate (540). The adapter plate (540) is connected to the force sensor (600). The third contour block (510) is detachably connected to the adapter plate (540). The fourth contour block (520) is detachably connected to the third contour block (510). The third contour block (510) and the fourth contour block (520) are assembled together, and a sliding sleeve clamping hole (530) with the same cross-section as the umbrella sliding sleeve is formed between them.

4. The umbrella opening and closing fatigue testing device as described in claim 1, characterized in that: The driving element is configured as a cylinder (310), the actuating element is configured as a movable seat (410), the movable seat (410) is connected to the piston of the cylinder (310), and the force sensor (600) is connected to the movable seat (410).

5. The umbrella opening and closing fatigue testing device as described in claim 4, characterized in that: The movable seat (410) extends in a direction perpendicular to the piston movement of the cylinder (310). One end of the movable seat (410) is connected to the piston of the cylinder (310), and the other end is connected to the sliding sleeve clamp (500) through the force sensor (600), causing the sliding sleeve clamp (500) to be misaligned with the cylinder (310).

6. The umbrella opening and closing fatigue testing device as described in claim 4, characterized in that: A magnetic ring is installed on the piston of the cylinder (310), and a magnetic switch is provided in the cylinder barrel of the cylinder (310). The magnetic switch is configured to issue a command to change the running direction of the piston of the cylinder (310) when the magnetic field of the magnetic ring is detected.

7. The umbrella opening and closing fatigue testing device as described in claim 6, characterized in that: The magnetic switch is slidably connected to or detachably connected to the cylinder barrel of the cylinder (310).

8. The umbrella opening and closing fatigue testing device as described in claim 1, characterized in that: The driving element is a motor (320), and the actuating element is a crank-slider mechanism. The actuating element includes a crank (420), a connecting rod (430), and a slider (440). The crank (420) is rotatably connected to the frame (100) via a rotating shaft. The rotating shaft is connected to the motor (320), and the motor (320) can drive the crank (420) to rotate around the rotating shaft. One end of the connecting rod (430) is hinged to the crank (420), and the other end is hinged to the slider (440). The slider (440) is slidably mounted on the frame (100), and the sliding sleeve clamp (500) is connected to the slider (440) via the force sensor (600).

9. The umbrella opening and closing fatigue testing device as described in claim 8, characterized in that: The frame (100) is provided with a guide rod (450), and the slider (440) is slidably sleeved on the guide rod (450). The guide rod (450) constrains the slider (440)'s degree of freedom in its radial direction.

10. The umbrella opening and closing fatigue testing device as described in claim 1, characterized in that: The frame (100) is provided with a plurality of spray heads (110), and the frame (100) has a test area located below the umbrella to be tested, with the spray heads (110) close to the test area.

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