Endoscope multi-station fatigue test tool and test method thereof

Abstract

The invention discloses an endoscope multi-station fatigue test tool and a test method thereof, and relates to the field of test instruments. According to the endoscope multi-station fatigue test tool and the test method thereof, the endoscope multi-station fatigue test tool comprises a bearing unit on which a plurality of endoscope main bodies for testing are placed; the testing units are selectively arranged, the testing units are all installed above the bearing unit, and each testing unit comprises a positioning assembly which can quickly position the endoscope body so that the endoscope body can be subjected to fatigue testing; the testing assembly can apply torsional force to the positioned end part of the endoscope main body so as to realize a fatigue test; and a control unit which is installed above the bearing unit and can control the opening and closing of the test assembly. According to the multi-station fatigue test tool for the endoscope and the test method thereof, the target torque is accurately output to the end part of the endoscope, so that the accurate fatigue test effect on the end part of the endoscope is conveniently realized.

Description

Technical Field

[0001] The present invention relates to the technical field of testing instruments, and in particular to an endoscope multi-station fatigue testing tool and a testing method thereof. Background Art

[0002] An endoscope is a commonly used medical device, which mainly consists of a flexible part, a light source and a set of lenses. It enters the human body through natural channels or small incisions made during surgery, and can directly observe changes in relevant parts.

[0003] Since medical endoscope products need to undergo strict testing before they can be used in research and development and production, the fatigue strength test of the bending angle of the endoscope is usually completed on the basis of the bending instrument test. The maximum life of the bending angle is determined by the inspectors by continuously testing the bending angle of the handle with the bending instrument and counting the number of times. However, during the test process, existing bending instruments generally use a driving component to drive the bending part and then drive the handle to bend, which makes it difficult to accurately control the bending strength. At the same time, when testing multiple endoscopes, existing bending instruments generally use a one-by-one testing method, which makes their test rate low. Therefore, this application proposes an endoscope multi-station fatigue test tool and its testing method. Summary of the Invention

[0004] In response to the deficiencies in the prior art, the present invention provides an endoscope multi-station fatigue testing tool and a testing method thereof, which solves the problem that the existing bending instruments generally use a driving component to drive the bending part and then drive the handle to bend during the test, which makes it difficult to accurately control the bending strength. At the same time, when testing multiple endoscopes, the existing bending instruments generally use a one-by-one testing method, resulting in a low testing rate.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an endoscope multi-station fatigue test tool, comprising: a carrying unit, on which a plurality of endoscope bodies for testing are placed; The test unit may be optionally provided in multiple groups, and the multiple groups of test units are installed above the carrying unit, and the test unit includes: A positioning assembly that can quickly position the endoscope body to enable fatigue testing; A test assembly capable of applying a torsional force to the end of the endoscope body after positioning to achieve fatigue testing; The control unit is installed above the carrying unit and can control the opening and closing of the test component.

[0006] Preferably, the carrying unit includes: A first support frame, the bottom of which is provided with supporting legs; The second support frame has supporting legs at the bottom and is fixedly connected to the first support frame.

[0007] Preferably, the endoscope body comprises: Endoscope handle; An insertion tube, an end of which is connected to one end of the handle of the endoscope; an end portion of the endoscope, the end portion of which is connected to the other end of the endoscope handle portion; A handle is fixedly arranged on the outside of the end portion of the endoscope.

[0008] Preferably, the positioning component includes: A handle positioning assembly, which is used to fix the handle of the endoscope; The insertion tube positioning assembly can be optionally provided in multiple numbers, and the multiple insertion tube positioning assemblies are arranged in a linear array, and the multiple insertion tube positioning assemblies are used to fix the insertion tube.

[0009] Preferably, the handle positioning assembly includes: A placement seat, with a placement groove on the top thereof adapted to the shape of the endoscope handle; A fixing frame is fixedly arranged on the side of the placement seat, and a positioning bar and a rotating frame are rotatably arranged inside and outside the fixing frame respectively, the positioning bar is provided with a through moving groove, and a moving member is slidably arranged on the inner wall of the moving groove, the bottom end of the moving member extends downward and is fixedly connected to the extrusion block, and the top end of the moving member extends upward and is threadedly connected to a nut; A squeezing block is provided below the positioning bar and is capable of pressing the endoscope handle portion in the placement slot; The limiting bar is rotatably arranged inside the rotating frame, and the bottom end of the limiting bar is rotatably arranged outside the end of the positioning bar. A rotating groove is opened on the top of the fixing frame, and the limiting bar is tightly against the top of the positioning bar in the vertical state.

[0010] Preferably, the insertion tube positioning assembly includes: A mounting bar, which is fixedly arranged above the carrying unit; A rubber block is fixedly mounted above the mounting bar, and an opening is formed on the top of the rubber block; The card slot is formed on the rubber block and is communicated with the opening.

[0011] Preferably, the test component includes: A rotating disk is rotatably arranged above the second support frame, a rotating block is embedded in the rotating disk, and a mounting groove is opened between the upper portion of the rotating block and the rotating disk; A driving motor is fixedly installed below the second supporting frame; A rotary encoder is fixedly mounted below the second support frame; A torque sensor is installed between the output end of the drive motor and the rotating disk; The limiting optical coupling component is arranged between the second supporting frame and the rotating disk.

[0012] Preferably, the limiting optical coupler assembly includes: A limit switch is installed above the second support frame and has a photosensitive element disposed therein; A limiting member is fixedly mounted on the outer side of the rotating disk, and an end portion of the limiting member is connected to a light-emitting diode; A blocking block is provided with a first arc-shaped groove above the second supporting frame, and the blocking block is slidably arranged above the second supporting frame through the first arc-shaped groove; The mounting frame is provided with a second arc groove above the second supporting frame, and the mounting frame is slidably arranged above the second supporting frame through the second arc groove, and the limit switch is fixedly installed on the mounting frame.

[0013] Preferably, a monitoring unit is fixedly installed above the carrying unit, which can monitor the testing process of the endoscope body, and the monitoring unit includes: A camera bracket, which is fixedly installed above the first support frame; The visual camera is fixedly mounted on the top of the camera bracket.

[0014] A testing method for an endoscope multi-station fatigue testing tool comprises the following steps: Step 1: First, place multiple endoscope bodies that need to be tested on multiple groups of test units respectively; Step 2: Using the positioning component, the endoscope body can be quickly positioned; Step 3: Control the test component corresponding to the control unit to open and close, and then use the test component to apply a torsional force to the positioned end of the endoscope body to achieve fatigue testing.

[0015] The present invention discloses an endoscope multi-station fatigue test fixture and a test method thereof, which have the following beneficial effects: During use, the endoscope multi-station fatigue test fixture first uses a control unit to preset the torque and speed of the drive motor, and the control unit generates a PWM signal and sends it to the drive motor. The drive motor receives the PWM signal and converts it into actual voltage and current to drive the output end of the drive motor to rotate. At the same time, the torque sensor and the rotary encoder respectively measure the torque, rotation angle and speed of the drive motor, and feed back the measurement results to the control unit. The control unit adjusts the duty cycle of the PWM signal according to the feedback signal to achieve precise control of the torque, position and speed of the drive motor, thereby enabling the drive motor to use the rotating disk to accurately output the target torque to the end of the endoscope, thereby facilitating accurate fatigue testing of the endoscope end.

[0016] During use of the endoscope multi-station fatigue test tool, multiple endoscope bodies that need to be tested are first placed on multiple groups of test units respectively; the positioning components are used to quickly position the endoscope bodies; the test components corresponding to the control unit are opened and closed, and then the test components are used to apply a torsional force to the positioned end of the endoscope body, thereby realizing fatigue testing, so that multiple endoscope bodies at multiple stations can be tested simultaneously according to needs.

[0017] The endoscope multi-station fatigue test fixture utilizes a limit optical coupling component to drive the limit piece on its outside to rotate during the rotation of the rotating disk. At the same time, limit switches are provided on both sides of the rotating disk. When the limit piece moves to the limit switch position, the light-emitting diode at its end shines light onto the photosensitive element inside the limit switch, which is converted into an electrical signal. At this time, the rotation angle of the rotating disk and the degree of torsion of the endoscope end can be determined, and then the limit switch is used to send a signal to the control unit, which controls the switch of the drive motor, so that the drive motor turns in different directions, thereby causing the endoscope end to repeatedly twist in different directions. At the same time, a blocking block is used to limit the rotation angle of the rotating block on the rotating disk, thereby more accurately realizing the torsion of the endoscope end.

[0018] The endoscope multi-station fatigue testing fixture utilizes the first arc groove and the second arc groove, and the blocking block and the limit switch can slide on the first arc groove and the second arc groove respectively, and the blocking block and the limit switch can be fixed by means of screws and nuts, so that the position of the blocking block and the limit switch can be adjusted, thereby realizing the adjustment of the torsion degree of the endoscope end, thereby facilitating fatigue tests of different degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the structure of the endoscope body of the present invention; Figure 3 It is a partial structural diagram of the present invention; Figure 4 This is a schematic structural diagram of the handle positioning assembly of the present invention; Figure 5 This is a partial structural diagram of the handle positioning assembly of the present invention; Figure 6 This is a schematic structural diagram of the insertion tube positioning assembly of the present invention; Figure 7 This is a schematic structural diagram of the handle positioning assembly, the testing assembly, and the control unit of the present invention; Figure 8 It is a structural schematic diagram of the position-limiting optical coupling component of the present invention; Figure 9 Schematic diagram of the structure of the rotating disk, drive motor and torque sensor of the present invention Figure 10 This is a test architecture diagram of the test component of the present invention.

[0021] In the figure: 1, bearing unit; 11, first support frame; 12, second support frame; 2, test unit; 21, positioning assembly; 211, handle positioning assembly; 2111, placement seat; 2112, fixed frame; 2113, positioning bar; 2114, rotating frame; 2115, extrusion block; 2116, rotating groove; 2117, limit bar; 2118, moving part; 2119, placement groove; 212, insertion tube positioning assembly; 2121, mounting bar; 2122, rubber block; 2123, slot; 22, test assembly; 221, rotating 1. Drive disk; 222. Drive motor; 223. Rotary encoder; 224. Torque sensor; 225. Limit optical coupler assembly; 226. Rotating block; 227. Mounting slot; 2251. Limit switch; 2252. Limit member; 2253. Blocking block; 2254. Second arc groove; 2255. Mounting bracket; 2256. First arc groove; 3. Endoscope body; 31. Endoscope handle; 32. Insertion tube; 33. Endoscope end; 34. Handle; 4. Control unit; 5. Monitoring unit; 51. Camera bracket; 52. Visual camera. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] The embodiments of the present application provide an endoscope multi-station fatigue testing tool and a testing method thereof, thereby solving the problem that the existing bending instruments generally use a driving component to drive the bending part and then drive the handle to bend during the test, which makes it difficult to accurately control the bending strength. At the same time, when testing multiple endoscopes, the existing bending instruments generally use a one-by-one testing method, resulting in a low testing rate.

[0024] The control unit 4 adjusts the duty cycle of the PWM signal according to the feedback signal to achieve precise control of the torque, position and speed of the drive motor 222, so that the drive motor 222 can use the rotating disk 221 to accurately output the target torque to the endoscope end 33, thereby facilitating the precise fatigue test effect of the endoscope end 33.

[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] Example 1 The embodiment of the present invention discloses an endoscope multi-station fatigue testing tool and a testing method thereof.

[0027] According to the attached Figure 1-10 As shown, an endoscope multi-station fatigue test fixture includes: A carrying unit 1, on which a plurality of endoscope bodies 3 for testing are placed; The test unit 2 may be provided in multiple groups, and the multiple groups of test units 2 are installed above the carrying unit 1. The test unit 2 includes: A positioning assembly 21, which can quickly position the endoscope body 3 so that it can be fatigue tested; A test assembly 22 capable of applying a torsional force to the end of the positioned endoscope body 3 to achieve fatigue testing; The control unit 4 is installed above the carrying unit 1 and can control the opening and closing of the test component 22 .

[0028] During use, first, multiple endoscope bodies 3 that need to be tested are placed on multiple groups of test units 2 respectively; the positioning component 21 can be used to quickly position the endoscope body 3; the test component 22 corresponding to the control unit 4 is opened and closed, and then the test component 22 can be used to apply a torsional force to the end of the positioned endoscope body 3, thereby realizing fatigue testing, so that multiple endoscope bodies 3 can be tested simultaneously at multiple stations according to needs.

[0029] Specifically disclosed, the carrying unit 1 comprises: A first support frame 11, having legs provided at the bottom thereof; The second support frame 12 has legs at its bottom and is fixedly connected to the first support frame 11 .

[0030] Specifically disclosed, the endoscope body 3 includes: Endoscope handle 31; An insertion tube 32, an end of which is connected to one end of the endoscope handle portion 31; an endoscope end portion 33, the end of which is connected to the other end of the endoscope handle portion 31; A handle 34 is fixedly arranged on the outside of the endoscope end 33 .

[0031] Specifically disclosed, the positioning assembly 21 includes: A handle positioning assembly 211, which is used to fix the endoscope handle 31; There can be multiple insertion tube positioning assemblies 212 , and the multiple insertion tube positioning assemblies 212 are arranged in a linear array. The multiple insertion tube positioning assemblies 212 are used to fix the insertion tube 32 .

[0032] Specifically disclosed, the handle portion positioning assembly 211 includes: The placement seat 2111 has a placement groove 2119 on its top that matches the shape of the endoscope handle 31; A fixed frame 2112 is fixedly mounted on the side of the placement seat 2111, and a positioning bar 2113 and a rotating frame 2114 are rotatably mounted on the interior and exterior of the fixed frame 2112, respectively. The positioning bar 2113 defines a through-moving groove, and a moving member 2118 is slidably mounted on the inner wall of the moving groove. The bottom end of the moving member 2118 extends downward and is fixedly connected to the extrusion block 2115, and the top end of the moving member 2118 extends upward and is threadedly connected to a nut. The squeezing block 2115 is disposed below the positioning bar 2113 and is capable of pressing the endoscope handle 31 in the placement groove 2119; The limiting bar 2117 is rotatably arranged inside the rotating frame 2114, and the bottom end of the limiting bar 2117 is rotatably arranged on the outside of the end of the positioning bar 2113. A rotating groove 2116 is provided on the top of the fixing frame 2112, and the limiting bar 2117 is tightly against the top of the positioning bar 2113 in the vertical state.

[0033] In the process of fixing the endoscope body 3, the rotating frame 2114 is first rotated so that the limiting bar 2117 rotates accordingly and is no longer in a vertical state, so that the limiting bar 2117 no longer squeezes the positioning bar 2113. At this time, the positioning bar 2113 can be rotated upward, and then the endoscope handle part 31 is placed in the placement groove 2119 above the placement seat 2111. Then the rotating frame 2114 is rotated in the opposite direction to reset the limiting bar 2117. The limiting bar 2117 drives the end of the positioning bar 2113 to rotate downward until the limiting bar 2117 is in a vertical state and tightly abuts against the top of the positioning bar 2113. At the same time, the squeezing block 2115 can press the endoscope handle part 31 in the placement groove 2119. At this time, the rotating frame 2114 is also in a vertical state. When the rotating frame 2114 is no longer rotated, the positioning bar 2113 cannot rotate upward to push the limiting bar 2117 and the rotating frame 2114 to rotate, thereby effectively fixing the positioning bar 2113 and thus fixing the position of the endoscope handle 31. Specifically disclosed, the plunger positioning assembly 212 includes: The mounting bar 2121 is fixedly mounted above the carrying unit 1; A rubber block 2122 is fixedly mounted above the mounting bar 2121, and an opening is formed at the top of the rubber block 2122; The slot 2123 is formed through the rubber block 2122 and communicates with the opening.

[0034] During the process of fixing the endoscope body 3 , the insertion tube 32 is inserted into the opening at the top of the rubber block 2122 , so that the insertion tube 32 enters the card slot 2123 , thereby fixing the position of the insertion tube 32 .

[0035] Specifically disclosed, the test component 22 includes: The rotating disk 221 is rotatably mounted above the second support frame 12. A rotating block 226 is embedded in the rotating disk 221, and a mounting slot 227 is provided between the rotating block 226 and the rotating disk 221. A driving motor 222 is fixedly mounted below the second support frame 12; A rotary encoder 223 is fixedly mounted below the second support frame 12; The torque sensor 224 is installed between the output end of the driving motor 222 and the rotating disk 221; The limiting optical coupling component 225 is disposed between the second support frame 12 and the rotating disk 221 .

[0036] During use, the control unit 4 is first used to preset the torque and speed of the drive motor 222. The control unit 4 generates a PWM signal and sends it to the drive motor 222. The drive motor 222 receives the PWM signal and converts it into actual voltage and current to drive the output end of the drive motor 222 to rotate. At the same time, the torque sensor 224 and the rotary encoder 223 respectively measure the torque, rotation angle and speed of the drive motor 222, and feed back the measurement results to the control unit 4. The control unit 4 adjusts the duty cycle of the PWM signal according to the feedback signal to achieve precise control of the torque, position and speed of the drive motor 222, so that the drive motor 222 can use the rotating disk 221 to accurately output the target torque to the endoscope end 33, thereby facilitating the precise fatigue test effect of the endoscope end 33.

[0037] It's important to note that PWM (Pulse Width Modulation) is a commonly used control signal that adjusts the average power output of a motor by varying the pulse width (or duty cycle). Duty cycle is the ratio of pulse width to pulse period, usually expressed as a percentage. In motor control, the duty cycle of a PWM signal directly determines the average voltage and current of the motor, thereby affecting its torque and speed.

[0038] Furthermore, the limiting optical coupler assembly 225 includes: The limit switch 2251 is installed above the second support frame 12 and has a photosensor disposed therein; A limiting member 2252 is fixedly mounted on the outer side of the rotating disk 221, and an end of the limiting member 2252 is connected to a light-emitting diode; The blocking block 2253 has a first arc-shaped groove 2256 formed above the second support frame 12, and the blocking block 2253 is slidably disposed above the second support frame 12 through the first arc-shaped groove 2256; The mounting bracket 2255 has a second arc-shaped slot 2254 formed above the second supporting bracket 12 , and the mounting bracket 2255 is slidably disposed above the second supporting bracket 12 through the second arc-shaped slot 2254 , and the limit switch 2251 is fixedly mounted on the mounting bracket 2255 .

[0039] By using the set limit optical coupling component 225, the limit member 2252 on the outside of the rotating disk 221 can be driven to rotate during the rotation of the rotating disk 221. At the same time, limit switches 2251 are set on both sides of the rotating disk 221. When the limit member 2252 moves to the limit switch 2251 position, the light-emitting diode at its end irradiates light to the photosensitive element inside the limit switch 2251, which converts it into an electrical signal. At this time, the rotation angle of the rotating disk 221 and the degree of torsion of the endoscope end 33 can be determined. Then, the limit switch 2251 is used to send a signal to the control unit 4, thereby controlling the switch of the drive motor 222, so that the drive motor 222 turns in different directions, thereby causing the endoscope end 33 to repeatedly twist in different directions. At the same time, the blocking block 2253 is used to limit the rotation angle of the rotating block 226 on the rotating disk 221, thereby more accurately realizing the torsion of the endoscope end 33.

[0040] By utilizing the first arc groove 2256 and the second arc groove 2254, the blocking block 2253 and the limit switch 2251 can slide on the first arc groove 2256 and the second arc groove 2254 respectively, and the blocking block 2253 and the limit switch 2251 can be fixed by means of screws and nuts, so that the positions of the blocking block 2253 and the limit switch 2251 can be adjusted, thereby realizing the adjustment of the degree of torsion of the endoscope end 33, thereby facilitating fatigue tests of different degrees.

[0041] Furthermore, a monitoring unit 5 is fixedly installed above the carrying unit 1, which can monitor the testing process of the endoscope body 3. The monitoring unit 5 includes: A camera bracket 51 is fixedly mounted above the first support frame 11; The visual camera 52 is fixedly mounted on the top of the camera bracket 51 .

[0042] During the testing of the endoscope body 3 , the testing process is monitored using the visual camera 52 installed on the top of the camera bracket 51 .

[0043] Example 2 A testing method for an endoscope multi-station fatigue testing tool comprises the following steps: Step 1: First, place multiple endoscope bodies 3 that need to be tested on multiple groups of test units 2 respectively; Step 2: Using the positioning assembly 21, the endoscope body 3 can be quickly positioned; Step 3: Control the test component 22 corresponding to the control unit 4 to open and close, and then use the test component 22 to apply a torsional force to the end of the positioned endoscope body 3 to achieve fatigue testing.

[0044] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An endoscope multi-station fatigue test tool, characterized in that: include: A carrying unit (1), on which a plurality of endoscope bodies (3) for testing are placed; The test unit (2) can be optionally provided in multiple groups, and the multiple groups of test units (2) are all installed above the carrying unit (1), and the test unit (2) includes: A positioning assembly (21) capable of quickly positioning the endoscope body (3) so that it can be fatigue tested; A test assembly (22) capable of applying a torsional force to the end of the positioned endoscope body (3) to achieve fatigue testing; A control unit (4) is installed above the carrying unit (1) and is capable of controlling the opening and closing of the test assembly (22).

2. The multi-station fatigue test fixture for endoscope according to claim 1, characterized in that: The carrying unit (1) comprises: A first support frame (11), having supporting legs provided at the bottom thereof; The second support frame (12) is provided with supporting legs at the bottom thereof and is fixedly connected to the first support frame (11).

3. The multi-station fatigue test fixture for endoscope according to claim 1, characterized in that: The endoscope body (3) comprises: Endoscope handle (31); An insertion tube (32), an end of which is connected to one end of the endoscope handle (31); An end portion of the endoscope (33), the end portion of which is connected to the other end of the endoscope handle portion (31); A handle (34) is fixedly arranged on the outside of the endoscope end (33).

4. The multi-station fatigue testing tool for endoscopes according to claim 3, characterized in that: The positioning component (21) comprises: A handle portion positioning assembly (211) for fixing the endoscope handle portion (31); The insertion tube positioning assembly (212) can be optionally provided in plurality, and the plurality of insertion tube positioning assemblies (212) are arranged in a linear array, and the plurality of insertion tube positioning assemblies (212) are used to fix the insertion tube (32).

5. The multi-station fatigue testing tool for endoscopes according to claim 4, characterized in that: The handle portion positioning assembly (211) comprises: A placement seat (2111) is provided with a placement groove (2119) on the top thereof that matches the shape of the endoscope handle portion (31); A fixed frame (2112) is fixedly arranged on the side of the placement seat (2111), and a positioning bar (2113) and a rotating frame (2114) are rotatably arranged inside and outside the fixed frame (2112), respectively. The positioning bar (2113) is provided with a through movable groove, and a movable member (2118) is slidably arranged on the inner wall of the movable groove. The bottom end of the movable member (2118) extends downward and is fixedly connected to the extrusion block (2115), and the top end of the movable member (2118) extends upward and is threadedly connected to a nut. A squeezing block (2115) is disposed below the positioning bar (2113) and is capable of pressing the endoscope handle portion (31) in the placement groove (2119); The limiting bar (2117) is rotatably arranged inside the rotating frame (2114), and the bottom end of the limiting bar (2117) is rotatably arranged outside the end of the positioning bar (2113). A rotating groove (2116) is provided on the top of the fixing frame (2112), and the limiting bar (2117) is tightly abutted against the top of the positioning bar (2113) in a vertical state.

6. The multi-station fatigue testing tool for endoscopes according to claim 5, characterized in that: The insertion tube positioning assembly (212) comprises: A mounting bar (2121) fixedly disposed above the carrying unit (1); A rubber block (2122) is fixedly mounted above the mounting strip (2121), and an opening is formed at the top of the rubber block (2122); The card slot (2123) is formed on the rubber block (2122) and is in communication with the opening.

7. The multi-station fatigue testing tool for endoscopes according to claim 2, characterized in that: The test assembly (22) comprises: A rotating disk (221) is rotatably arranged above the second support frame (12), a rotating block (226) is embedded in the rotating disk (221), and a mounting groove (227) is provided between the upper portion of the rotating block (226) and the rotating disk (221); A drive motor (222) fixedly mounted below the second support frame (12); A rotary encoder (223) fixedly mounted below the second support frame (12); A torque sensor (224) is installed between the output end of the drive motor (222) and the rotating disk (221); A position-limiting optical coupling component (225) is arranged between the second support frame (12) and the rotating disk (221).

8. The multi-station fatigue testing tool for endoscopes according to claim 7, characterized in that: The limiting optical coupling component (225) comprises: A limit switch (2251) is installed above the second support frame (12) and has a photosensitive element disposed therein; A limiting member (2252) is fixedly mounted on the outside of the rotating disk (221), and an end of the limiting member (2252) is connected to a light-emitting diode; The blocking block (2253) is provided with a first arc-shaped groove (2256) above the second support frame (12), and the blocking block (2253) is slidably arranged above the second support frame (12) through the first arc-shaped groove (2256); A mounting frame (2255) is provided with a second arcuate groove (2254) above the second support frame (12), and the mounting frame (2255) is slidably arranged above the second support frame (12) through the second arcuate groove (2254), and the limit switch (2251) is fixedly mounted on the mounting frame (2255).

9. The multi-station fatigue testing tool for endoscopes according to claim 2, characterized in that: A monitoring unit (5) is fixedly mounted above the carrying unit (1), which is capable of monitoring the testing process of the endoscope body (3). The monitoring unit (5) comprises: A camera bracket (51) is fixedly mounted above the first support frame (11); A visual camera (52) is fixedly mounted on the top of the camera bracket (51).

10. A testing method for an endoscope multi-station fatigue testing tool according to any one of claims 1 to 9, characterized in that: The test method comprises the following steps: Step 1: First, multiple endoscope bodies (3) to be tested are placed on multiple groups of test units (2); Step 2: Using the positioning component (21), the endoscope body (3) can be quickly positioned; Step three: the test component (22) corresponding to the control unit (4) is turned on and off, and then the test component (22) is used to apply a torsional force to the end of the positioned endoscope body (3), thereby achieving fatigue testing.

Images