An aging test device applied to endoscope bending fatigue

Abstract

The utility model discloses a kind of aging test devices applied to endoscope bending fatigue, comprising: mounting plate, motor, linear bearing, counting sensor respectively installed on the mounting plate, carousel connected with the output shaft of the motor, pull rod passing through the linear bearing, connecting rod, first rotating shaft installed on the pull rod, second rotating shaft installed on the carousel disc, counting sheet connected with the pull rod;The two ends of the connecting rod are respectively sleeved on the first rotating shaft, second rotating shaft, and the moving area of the counting sheet passes through the induction area of the counting sensor;The carousel is provided with several different length bolt hole distances from the center of carousel, and the second rotating shaft is inserted in one of the bolt hole distances. The utility model changes the position of the bolt hole distance inserted by the second rotating shaft, thereby realizing the control of the rotation angle of endoscope, can accurately set and reproduce target bending angle, ensure the consistency and repeatability of test condition.

Description

Technical Field

[0001] This utility model relates to the field of endoscope technology, and in particular to an aging test device for endoscope bending fatigue. Background Technology

[0002] The endoscope is a precision visualization system for industrial non-destructive testing, widely used in aerospace, automotive, petrochemical, power, and high-end equipment manufacturing. Its insertion tube incorporates a high-brightness light source and a high-resolution imaging module, allowing it to reach narrow cavities inaccessible to the human eye for real-time defect identification and condition assessment. The tube end employs a multi-jointed serpentine structure, enabling continuous bending in four directions (pitch, yaw) via a steel cable. Operators can fine-tune the viewing angle within a 360° sphere using a precision handwheel on the handle, accurately locating anomalies such as cracks, corrosion, or blockages. Given the presence of oil mist, water vapor, high temperatures, and chemical media in the field, the serpentine structure and sheath must possess multiple protection levels; their reliability directly impacts equipment safety. In reliability verification, "bending life" is a key indicator. Traditional methods rely on manual, repeated rotation of the handwheel: angle control is coarse, cycle counting is prone to errors, and repeatability and efficiency are limited.

[0003] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an aging test device for endoscope bending fatigue, so as to realize the automatic execution of endoscope bending fatigue test and reduce the labor intensity of test personnel.

[0005] The technical solution of this utility model is as follows: An aging test device for endoscope bending fatigue is provided, comprising: a mounting plate; a motor, a linear bearing, and a counting sensor respectively mounted on the mounting plate; a turntable connected to the output shaft of the motor; a pull rod passing through the linear bearing; a connecting rod; a first rotating shaft mounted on the pull rod; a second rotating shaft mounted on the turntable; and a counting plate connected to the pull rod. The two ends of the connecting rod are respectively sleeved on the first and second rotating shafts, and the moving area of ​​the counting plate passes through the sensing area of ​​the counting sensor. The turntable is provided with several pin holes of different lengths from the center of the turntable, and the second rotating shaft is inserted into one of the pin holes.

[0006] In application, the other end of the pull rod (not connected to the connecting rod) is connected to the handwheel of the endoscope. Then, the motor is started, and its output shaft rotates, driving the turntable to rotate. This achieves a cyclical circular motion of the second rotating shaft, which in turn causes one end of the connecting rod to move in a circular motion, thus achieving linear reciprocating movement of the pull rod. This, in turn, allows for reciprocating movement of the handwheel, enabling automatic execution of the endoscope bending fatigue aging test, effectively reducing the labor intensity of employees. Furthermore, the turntable is equipped with several pin holes at different distances from its center, allowing adjustment of the pull rod's reciprocating distance and consequently, the endoscope's bending angle. This facilitates aging tests at different endoscope bending angles. The pin holes on the turntable also allow for easy insertion and removal of the second rotating shaft, greatly simplifying assembly and testing operations. The counting plate passes through the sensing area of ​​the counting sensor; each time the counting plate passes through the sensor's sensing area, one endoscope bending test is performed. To ensure the linearity and durability of the push rod under high-speed and high-frequency conditions, a linear bearing is installed to convert traditional sliding friction into rolling friction, which significantly reduces resistance and temperature rise, making the moving parts run more smoothly and steadily, while greatly extending the service life of the whole machine.

[0007] Furthermore, the motor and the turntable are respectively disposed on both sides of the mounting plate.

[0008] Furthermore, the aging test device for endoscope bending fatigue also includes: a controller, a display screen, a speed adjustment knob, an external power interface, and a start switch. The controller is electrically connected to the display screen, the speed adjustment knob, the external power interface, the counting sensor, the motor, and the start switch. The controller controls the entire device, the display screen displays the number of tests, the speed adjustment knob adjusts the motor speed, the external power interface connects to an external power source, and the pneumatic switch starts and stops the device.

[0009] Furthermore, the aging test device for endoscope bending fatigue also includes: a housing, and the mounting plate is installed inside the housing.

[0010] Furthermore, the outer casing includes: a box body with an opening, and a box lid that covers the opening.

[0011] Furthermore, the display screen, speed adjustment knob, and start switch are located on the cover, and the external power interface is located on the body.

[0012] Furthermore, the box body and the box lid are connected by hinges.

[0013] Furthermore, the pin holes are radially distributed with the center of the turntable as the center.

[0014] Furthermore, the counting sensor is a slotted optocoupler.

[0015] Furthermore, the aging test device for endoscope bending fatigue also includes: an auxiliary guide mounted on the mounting plate, the auxiliary guide having a guide groove, the counting plate being inserted into the guide groove, and the guide groove being connected to the U-shaped groove of the slot-type optocoupler.

[0016] By adopting the above-mentioned solution, this utility model provides an aging test device for endoscope bending fatigue. By changing the position of the pin hole into which the second rotating shaft is inserted, the rotation angle of the endoscope can be controlled, allowing for precise setting and reproduction of the target bending angle, ensuring the consistency and repeatability of test conditions. Simultaneously, the use of a linear bearing positioning structure enhances the stability and reliability of the device, effectively reducing the interference of mechanical deviations on test results, thereby improving the authenticity, accuracy, and precision of the test data. Furthermore, the test process has been optimized. After the device is assembled, a single test only requires connecting the front end of the push rod to the handwheel at the front of the endoscope and then fixing the endoscope. The operation is simple and efficient, significantly shortening the preparation time for a single inspection, saving manpower and time costs, and is suitable for large-scale, cyclical fatigue aging testing needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention; Figure 2 for Figure 1 A structural schematic diagram from another perspective of the embodiment; Figure 3 A schematic diagram of the structure of the mounting plate, motor, linear bearing, counting sensor, turntable, pull rod, connecting rod, first rotating shaft, second rotating shaft, and counting plate; Figure 4 for Figure 1 A schematic diagram of the structure when the embodiment is applied. Detailed Implementation

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Please see Figures 1-4This embodiment provides an aging test device for endoscope bending fatigue, comprising: a mounting plate 11, a motor 12, a linear bearing 13, and a counting sensor 14 respectively mounted on the mounting plate 11, a turntable 15 connected to the output shaft of the motor 12, a pull rod 16 passing through the linear bearing 13, a connecting rod 17, a first rotating shaft 18 mounted on the pull rod 16, a second rotating shaft 19 mounted on the turntable 15, and a counting plate 20 connected to the pull rod 16; the two ends of the connecting rod 17 are respectively sleeved on the first rotating shaft 18 and the second rotating shaft 19, and the moving area of ​​the counting plate 20 passes through the sensing area of ​​the counting sensor 14; the turntable 15 is provided with a plurality of pin holes 21 of different lengths from the center of the turntable 15, and the second rotating shaft 19 is inserted into one of the pin holes 21.

[0020] In application, the other end of the pull rod 16, which is not connected to the connecting rod 17, is connected to the handwheel 22 of the endoscope. Then, the motor 12 is started, and the output shaft of the motor 12 rotates, driving the turntable 15 to rotate. This achieves a cyclical circular motion of the second rotating shaft 19, which in turn pulls one end of the connecting rod 17 in a circular motion, thereby achieving linear reciprocating movement of the pull rod 16, which in turn allows for reciprocating movement of the handwheel 22. This enables the automatic execution of the endoscope bending fatigue aging test, effectively reducing the labor intensity of employees. In addition, the turntable 15 is provided with several pin holes 21 at different lengths from the center of the turntable 15. Therefore, the reciprocating distance of the pull rod 16 can be adjusted, thereby adjusting the bending angle of the endoscope, facilitating aging tests on different bending angles of the endoscope. Moreover, the pin holes 21 on the turntable 15 allow for easy insertion and removal of the second rotating shaft 19, greatly simplifying the operation during testing and assembly. The counting plate 20 is used to pass through the sensing area of ​​the counting sensor 14. Each time the counting plate 20 passes through the sensing area of ​​the counting sensor 14, an endoscope bending test is performed.

[0021] In this embodiment, the motor 12 and the turntable 15 are respectively disposed on both sides of the mounting plate 11.

[0022] In this embodiment, the aging test device for endoscope bending fatigue further includes: a controller 23, a display screen 24, a speed adjustment knob 25, an external power interface 26, and a start switch 27. The controller 23 is electrically connected to the display screen 24, the speed adjustment knob 25, the external power interface 26, the counting sensor 14, the motor 12, and the start switch 27. The controller 23 controls the entire device, the display screen 24 displays the number of tests, the speed adjustment knob 25 adjusts the speed of the motor 12, the external power interface 26 connects to an external power source, and the pneumatic switch is used for starting and stopping the device.

[0023] In this embodiment, the aging test device for endoscope bending fatigue further includes: a housing, and the mounting plate 11 is installed inside the housing.

[0024] In this embodiment, the outer shell includes: a box body 28 with an opening, and a box cover 29 that seals the opening.

[0025] In this embodiment, the display screen 24, the speed adjustment knob 25, and the start switch 27 are disposed on the cover 29, and the external power interface 26 is disposed on the body 28.

[0026] In this embodiment, the box body 28 and the box cover 29 are connected by a hinge 30.

[0027] In this embodiment, the pin holes 21 are radially distributed with the center of the turntable 15 as the center.

[0028] In this embodiment, the counting sensor 14 is a slotted optocoupler.

[0029] In this embodiment, the aging test device for endoscope bending fatigue further includes: an auxiliary guide 31 mounted on the mounting plate 11, the auxiliary guide 31 being provided with a guide groove, the counting plate 20 being inserted into the guide groove, and the guide groove being connected to the U-shaped groove of the slot-type optocoupler.

[0030] In summary, this utility model provides an aging test device for endoscope bending fatigue. By changing the position of the pin hole into which the second rotating shaft is inserted, the rotation angle of the endoscope can be controlled, allowing for precise setting and reproduction of the target bending angle, ensuring the consistency and repeatability of test conditions. Simultaneously, the use of a linear bearing positioning structure enhances the stability and reliability of the device, effectively reducing the interference of mechanical deviations on test results, thereby improving the authenticity, accuracy, and precision of the test data. Furthermore, the test process has been optimized. After the device is assembled, a single test only requires connecting the front end of the push rod to the handwheel at the front of the endoscope and then fixing the endoscope. The operation is simple and efficient, significantly shortening the preparation time for a single inspection, saving manpower and time costs, and is suitable for large-scale, cyclical fatigue aging testing needs.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An aging test device for endoscope bending fatigue, characterized in that, include: A mounting plate, a motor, a linear bearing, and a counting sensor are mounted on the mounting plate respectively. A turntable connected to the output shaft of the motor, a tie rod passing through the linear bearing, a connecting rod, a first rotating shaft mounted on the tie rod, a second rotating shaft mounted on the turntable, and a counting plate connected to the tie rod; the two ends of the connecting rod are respectively sleeved on the first rotating shaft and the second rotating shaft, and the moving area of ​​the counting plate passes through the sensing area of ​​the counting sensor; the turntable is provided with a number of pin holes of different lengths from the center of the turntable, and the second rotating shaft is inserted into one of the pin holes.

2. The aging test device for endoscope bending fatigue according to claim 1, characterized in that, The motor and the turntable are respectively mounted on both sides of the mounting plate.

3. The aging test device for endoscope bending fatigue according to claim 1, characterized in that, Also includes: The controller includes a display screen, a speed adjustment knob, an external power interface, and a start switch. The controller is electrically connected to the display screen, the speed adjustment knob, the external power interface, the counting sensor, the motor, and the start switch.

4. The aging test device for endoscope bending fatigue according to claim 3, characterized in that, Also includes: The housing, wherein the mounting plate is installed inside the housing.

5. The aging test device for endoscope bending fatigue according to claim 4, characterized in that, The outer casing includes: a box body with an opening, and a box lid that covers the opening.

6. The aging test device for endoscope bending fatigue according to claim 5, characterized in that, The display screen, speed adjustment knob, and start switch are located on the cover, and the external power interface is located on the body.

7. The aging test device for endoscope bending fatigue according to claim 5, characterized in that, The box body and the box lid are connected by hinges.

8. The aging test device for endoscope bending fatigue according to claim 1, characterized in that, The pin holes are arranged radially with the center of the turntable as the center.

9. An aging test device for endoscope bending fatigue according to claim 1, characterized in that, The counting sensor is a slotted optocoupler.

10. An aging test device for endoscope bending fatigue according to claim 9, characterized in that, Also includes: An auxiliary guide is mounted on the mounting plate. The auxiliary guide is provided with a guide groove. The counting plate is inserted into the guide groove, and the guide groove is connected to the U-shaped groove of the slot-type optocoupler.

Images