Endoscope multi-station fatigue test tool and test method thereof

Abstract

The application discloses an endoscope multi-station fatigue test tool and a test method thereof, and relates to the field of test instruments.The endoscope multi-station fatigue test tool and the test method thereof comprise a bearing unit, a plurality of endoscope bodies for testing are placed above the bearing unit, a plurality of test units are selectively arranged, the plurality of test units are all installed above the bearing unit, the test unit comprises a positioning assembly, the positioning assembly can quickly position the endoscope body, so that the endoscope body can be subjected to fatigue test, the test unit comprises a test assembly, the test assembly can exert a torsional force on the end of the positioned endoscope body, so that fatigue test is realized, and the test unit comprises a control unit, the control unit is installed above the bearing unit and can control the opening and closing of the test assembly.The endoscope multi-station fatigue test tool and the test method thereof can accurately output a target torsional force on the end of the endoscope, so that the end of the endoscope can be subjected to precise fatigue test.

Description

TECHNICAL FIELD

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

[0002] An endoscope is a commonly used medical instrument, which mainly consists of a bendable part, a light source and a set of lenses. It can be inserted into the human body through natural orifices or small incisions made by surgery to directly observe changes in related parts.

[0003] Since medical endoscope products need to undergo strict testing before research and development and factory shipment, the current fatigue strength test of the bending angle of the endoscope is usually completed on the basis of the bending instrument test. The limit life of the bending angle is determined by the tester by continuously testing the handle bending angle and counting the number.

[0004] The existing bending instrument generally adopts a mode of driving the bending member by a driving assembly to drive the handle to bend, which may cause difficulty in accurately controlling the bending strength. Moreover, the existing bending instrument generally adopts a one-by-one testing mode when testing multiple endoscopes, which results in a low testing rate. Therefore, the present application provides an endoscope multi-station fatigue test tool and a test method thereof. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides an endoscope multi-station fatigue test tool and a test method thereof, which solves the problem of difficulty in accurately controlling the bending strength of the existing bending instrument during testing, and the problem of low testing rate of the existing bending instrument when testing multiple endoscopes.

[0006] To achieve the above purpose, the present application is implemented by the following technical scheme: an endoscope multi-station fatigue test tool, comprising:

[0007] a bearing unit having a plurality of endoscope bodies for testing placed thereon;

[0008] a plurality of test units selectively arranged and installed above the bearing unit, wherein the test unit comprises:

[0009] a positioning assembly capable of quickly positioning the endoscope body for fatigue testing;

[0010] a test assembly capable of applying a torsional force to the end of the positioned endoscope body to achieve fatigue testing.

[0011] A control unit is installed above the bearing unit and can control the opening and closing of the test assembly.

[0012] Preferably, the bearing unit comprises:

[0013] A first support frame is provided with supporting legs at the bottom;

[0014] A second support frame is provided with supporting legs at the bottom and is fixedly connected with the first support frame.

[0015] Preferably, the endoscope body comprises:

[0016] An endoscope handle part;

[0017] An insertion tube, the end of which is connected with one end of the endoscope handle part;

[0018] An endoscope end part, the end of which is connected with the other end of the endoscope handle part;

[0019] A handle fixedly arranged outside the endoscope end part.

[0020] Preferably, the positioning assembly comprises:

[0021] An endoscope handle part positioning assembly for fixing the endoscope handle part;

[0022] An insertion tube positioning assembly, which is optionally provided with a plurality of insertion tube positioning assemblies arranged in a linear array, for fixing the insertion tube.

[0023] Preferably, the endoscope handle part positioning assembly comprises:

[0024] A placing seat, above which is provided with a placing groove matching the shape of the endoscope handle part;

[0025] A fixed frame fixedly arranged on the side of the placing seat, and a positioning strip and a rotating frame are rotatably arranged inside and outside the fixed frame, respectively, the positioning strip is provided with a through moving groove, and a moving piece is slidably arranged on the inner wall of the moving groove, the bottom end of the moving piece extends downward and is fixedly connected with a pressing block, and the top end of the moving piece extends upward and is threadedly connected with a nut;

[0026] A pressing block arranged below the positioning strip and capable of tightly pressing the endoscope handle part in the placing groove;

[0027] A limiting strip rotatably arranged inside the rotating frame, the bottom end of the limiting strip is rotatably arranged outside the end of the positioning strip, the top of the fixed frame is provided with a rotating groove, and the limiting strip is tightly abutted with the upper part of the positioning strip in the vertical state.

[0028] Preferably, the extension tube positioning assembly comprises:

[0029] A mounting strip is fixedly arranged above the bearing unit;

[0030] A rubber block is fixedly arranged above the mounting strip, and an opening is formed in the top of the rubber block;

[0031] A clamping groove is formed through the rubber block and communicates with the opening.

[0032] Preferably, the test assembly comprises:

[0033] A rotating disc is rotatably arranged above the second support frame, a rotating block is embedded on the rotating disc, and a mounting groove is formed between the top of the rotating block and the rotating disc;

[0034] A driving motor is fixedly arranged below the second support frame;

[0035] A rotary encoder is fixedly arranged below the second support frame;

[0036] A torque sensor is arranged between the output end of the driving motor and the rotating disc;

[0037] A limit light coupling assembly is arranged between the second support frame and the rotating disc.

[0038] Preferably, the limit light coupling assembly comprises:

[0039] A limit switch is arranged above the second support frame, and a photosensitive element is arranged in the limit switch;

[0040] A limiting piece is fixedly arranged on the outer side of the rotating disc, and a light-emitting diode is connected to the end of the limiting piece;

[0041] A blocking block is arranged above the second support frame through a first arc-shaped groove formed in the second support frame;

[0042] A mounting bracket is arranged above the second support frame through a second arc-shaped groove formed in the second support frame, and the limit switch is fixedly arranged on the mounting bracket.

[0043] Preferably, a monitoring unit is fixedly arranged above the bearing unit, which can monitor the test process of the endoscope body, and the monitoring unit comprises:

[0044] A camera support is fixedly arranged above the first support frame;

[0045] A visual camera is fixedly arranged on the top of the camera support.

[0046] A kind of endoscope multi-station fatigue test tool test method, the test method includes the following steps:

[0047] Step one, first, the multiple endoscope bodies needing to be tested are placed on multiple sets of test units respectively;

[0048] Step two, using positioning assembly, the endoscope body can be quickly positioned;

[0049] Step three, the test assembly corresponding to control unit is opened and closed, then the test assembly can be used to exert torsional force on the end of the positioned endoscope body, to realize fatigue test.

[0050] The present application discloses an endoscope multi-station fatigue test tool and its test method, which has the following beneficial effects:

[0051] The endoscope multi-station fatigue test tool, in the process of using, first, the control unit is used to preset the torque and speed of the drive motor, the control unit generates 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, while the torque sensor and rotary encoder measure the torque and rotation angle and speed of the drive motor respectively 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 realize accurate control of the torque, position and speed of the drive motor, so that the drive motor can output the target torque accurately using the rotating disc to the end of the endoscope, and then the precise fatigue test effect of the end of the endoscope is realized.

[0052] The endoscope multi-station fatigue test tool, in the process of using, first, the multiple endoscope bodies needing to be tested are placed on multiple sets of test units respectively;Using positioning assembly, the endoscope body can be quickly positioned;The test assembly corresponding to control unit is opened and closed, then the test assembly can be used to exert torsional force on the end of the positioned endoscope body, to realize fatigue test, so that multiple endoscope bodies can be tested simultaneously according to the demand.

[0053] The endoscope multi-station fatigue test tool utilizes the set limit light coupling assembly, which can drive the limit piece outside to rotate during the rotation of the rotating disc, and the limit switch is arranged on both sides of the rotating disc, when the limit piece moves to the limit switch position, the light emitting diode at the end thereof irradiates light to the photosensitive element inside the limit switch, which converts it into an electrical signal, at this time, the rotation angle of the rotating disc and the torsion degree of the end of the endoscope can be determined, then the limit switch sends the signal to the control unit, and then controls the switch of the driving motor, so that the driving motor turns in different directions, and then the end of the endoscope repeatedly twists in different directions, and the rotation angle of the rotating block on the rotating disc is limited by the blocking block, so that the torsion of the end of the endoscope is more accurately realized.

[0054] The endoscope multi-station fatigue test tool utilizes the set first arc-shaped groove and second arc-shaped groove, the blocking block and the limit switch can slide on the first arc-shaped groove and the second arc-shaped groove respectively, and the blocking block and the limit switch can be fixed by the screw and the nut, so that the position of the blocking block and the limit switch can be adjusted, and the torsion degree of the end of the endoscope is adjusted, and different degrees of fatigue test are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0056] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0057] Figure 2 It is a schematic diagram of the structure of the endoscope body of the present application;

[0058] Figure 3 It is a schematic diagram of part of the structure of the present application;

[0059] Figure 4 It is a schematic diagram of the structure of the handle positioning assembly of the present application;

[0060] Figure 5 It is a schematic diagram of part of the structure of the handle positioning assembly of the present application;

[0061] Figure 6 It is a schematic diagram of the structure of the extension tube positioning assembly of the present application;

[0062] Figure 7 It is a schematic diagram of the structure of the handle positioning assembly, the test assembly and the control unit of the present application;

[0063] Figure 8 Structure diagram of the limit light coupling assembly of the present application;

[0064] Figure 9 Structure diagram of the rotating disc, driving motor and torsion sensor of the present application

[0065] Figure 10 Test architecture diagram of the test assembly of the present application.

[0066] In the figure: 1, bearing unit; 11, first support frame; 12, second support frame; 2, test unit; 21, positioning assembly; 211, handle part positioning assembly; 2111, placing seat; 2112, fixing frame; 2113, positioning strip; 2114, rotating frame; 2115, extrusion block; 2116, rotating groove; 2117, limiting strip; 2118, moving piece; 2119, placing groove; 212, extruding tube positioning assembly; 2121, mounting strip; 2122, rubber block; 2123, clamping groove; 22, test assembly; 221, rotating disc; 222, driving motor; 223, rotary encoder; 224, torsion sensor; 225, limit light coupling assembly; 226, rotating block; 227, mounting groove; 2251, limit switch; 2252, limiting piece; 2253, blocking block; 2254, second arc-shaped groove; 2255, mounting frame; 2256, first arc-shaped groove; 3, endoscope main body; 31, endoscope handle part; 32, extruding tube; 33, endoscope end part; 34, handle; 4, control unit; 5, monitoring unit; 51, camera support; 52, visual camera. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0068] The endoscope multi-station fatigue test tool and test method thereof provided by the embodiments of the present application solve the problem that the existing bending instrument generally adopts the mode of driving the bending part by a driving assembly to drive the handle to bend, and thus it is difficult to accurately control the bending strength. Meanwhile, the existing bending instrument generally adopts the mode of testing one by one when testing multiple endoscopes, and thus the test rate is low.

[0069] The control unit 4 adjusts the duty cycle of the PWM signal according to the feedback signal, so as to realize accurate control of the torque, position and speed of the driving motor 222, and then the driving motor 222 can accurately output the target torque to the endoscope end portion 33 by the rotating disc 221, and then the accurate fatigue test effect of the endoscope end portion 33 is realized.

[0070] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings in the specification and specific embodiments.

[0071] Embodiment one

[0072] The embodiment of the application discloses an endoscope multi-station fatigue test tool and a test method thereof.

[0073] According to the drawings Figures 1-10 As shown in the drawings, an endoscope multi-station fatigue test tool comprises:

[0074] A bearing unit 1 has a plurality of endoscope bodies 3 for testing placed thereon;

[0075] A plurality of test units 2 are selectively arranged, and the plurality of test units 2 are all installed above the bearing unit 1, and the test unit 2 comprises:

[0076] A positioning assembly 21 can quickly position the endoscope body 3 so that the endoscope body 3 can be subjected to fatigue test;

[0077] A test assembly 22 can exert torsional force on the end portion of the positioned endoscope body 3, so as to realize fatigue test;

[0078] A control unit 4 is installed above the bearing unit 1 and can control the opening and closing of the test assembly 22.

[0079] In use, first, a plurality of endoscope bodies 3 to be tested are placed on the plurality of test units 2; the positioning assembly 21 can quickly position the endoscope body 3; the control unit 4 opens and closes the corresponding test assembly 22, and then the test assembly 22 can exert torsional force on the end portion of the positioned endoscope body 3, so as to realize fatigue test, thereby realizing simultaneous test of a plurality of endoscope bodies 3 in multiple stations according to requirements.

[0080] In particular, the bearing unit 1 comprises:

[0081] A first support frame 11 is provided with supporting legs at the bottom;

[0082] A second support frame 12 is provided with supporting legs at the bottom and is fixedly connected with the first support frame 11.

[0083] The endoscope body 3 comprises:

[0084] The endoscope handle part 31;

[0085] The insertion tube 32, the end of which is connected with one end of the endoscope handle part 31;

[0086] The endoscope end part 33, the end of which is connected with the other end of the endoscope handle part 31;

[0087] The handle 34, which is fixedly arranged on the outside of the endoscope end part 33.

[0088] The positioning assembly 21 comprises:

[0089] The handle part positioning assembly 211, which is used for fixing the endoscope handle part 31;

[0090] The insertion tube positioning assembly 212, which is selectively arranged in multiple, and the multiple insertion tube positioning assemblies 212 are arranged in a linear array, and the multiple insertion tube positioning assemblies 212 are used for fixing the insertion tube 32.

[0091] The handle part positioning assembly 211 comprises:

[0092] The placing seat 2111, the top of which is provided with a placing groove 2119 which is matched with the shape of the endoscope handle part 31;

[0093] The fixed frame 2112, which is fixedly arranged on the side of the placing seat 2111, and the inside and the outside of the fixed frame 2112 are respectively rotatably provided with the positioning strip 2113 and the rotating frame 2114, the positioning strip 2113 is provided with a through moving groove, and the inside wall of the moving groove is slidably provided with the moving piece 2118, the bottom end of the moving piece 2118 extends downward and is fixedly connected with the extrusion block 2115, and the top end of the moving piece 2118 extends upward and is threadedly connected with the nut;

[0094] The extrusion block 2115, which is arranged below the positioning strip 2113 and can abut against the endoscope handle part 31 in the placing groove 2119;

[0095] The limiting strip 2117, which is rotatably arranged in the inside of the rotating frame 2114, the bottom end of the limiting strip 2117 is rotatably arranged outside the end part of the positioning strip 2113, the top of the fixed frame 2112 is provided with the rotating groove 2116, and the limiting strip 2117 is closely abutted against the top of the positioning strip 2113 in the vertical state.

[0096] 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.

[0097] 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.

[0098] Specifically disclosed, the plunger positioning assembly 212 includes:

[0099] The mounting bar 2121 is fixedly mounted above the carrying unit 1;

[0100] 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;

[0101] The slot 2123 is formed through the rubber block 2122 and communicates with the opening.

[0102] 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 .

[0103] Specifically disclosed, the test component 22 includes:

[0104] 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.

[0105] A driving motor 222 is fixedly mounted below the second support frame 12;

[0106] A rotary encoder 223 is fixedly mounted below the second support frame 12;

[0107] A torsion sensor 224 is mounted between the output end of the drive motor 222 and the rotating disc 221.

[0108] A limiting optocoupler assembly 225 is arranged between the second support frame 12 and the rotating disc 221.

[0109] In use, first, the control unit 4 presets the torque and rotation 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, while the torsion sensor 224 and the rotary encoder 223 measure the torque and rotation angle and speed of the drive motor 222 respectively 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 realize accurate control of the torque, position and speed of the drive motor 222, thereby enabling the drive motor 222 to accurately output the target torque to the endoscope end 33 through the rotating disc 221, thereby facilitating precise fatigue testing of the endoscope end 33.

[0110] It should be emphasized that the PWM (Pulse Width Modulation) signal is a commonly used control signal that adjusts the average power output of the motor by changing the width of the pulse (i.e. the duty cycle). The duty cycle is the ratio of the pulse width to the pulse period, usually expressed as a percentage. In motor control, the duty cycle of the PWM signal directly determines the average voltage and current of the motor, thereby affecting the torque and speed of the motor.

[0111] Further, the limiting optocoupler assembly 225 comprises:

[0112] A limiting switch 2251 is mounted above the second support frame 12, and a photosensitive element is arranged inside the limiting switch 2251;

[0113] A limiting member 2252 is fixedly installed on the outer side of the rotating disc 221, and an end of the limiting member 2252 is connected with a light-emitting diode;

[0114] A blocking block 2253 is arranged above the second support frame 12 through a first arc-shaped slot 2256 formed in the second support frame 12;

[0115] A mounting bracket 2255 is arranged above the second support frame 12 through a second arc-shaped slot 2254 formed in the second support frame 12, and the limiting switch 2251 is fixedly installed on the mounting bracket 2255.

[0116] With the setting of the limit light coupling assembly 225, in the process of rotating the rotating disc 221, its outer limit piece 2252 can be rotated, and the limit switch 2251 is arranged on both sides of the rotating disc 221, when the limit piece 2252 moves to the position of the limit switch 2251, the end of the light-emitting diode emits light to the photosensitive element in the limit switch 2251, which is converted into an electrical signal, at this time, the rotating angle of the rotating disc 221 and the torsion degree of the end of the endoscope 33 can be determined, then the limit switch 2251 sends a signal to the control unit 4, and then controls the switch of the driving motor 222, so that the driving motor 222 turns in different directions, and then the end of the endoscope 33 repeatedly twists in different directions, and the blocking block 2253 limits the rotating angle of the rotating block 226 on the rotating disc 221, so that the torsion of the end of the endoscope 33 is more accurately realized.

[0117] With the setting of the first arc-shaped groove 2256 and the second arc-shaped groove 2254, the blocking block 2253 and the limit switch 2251 can slide on the first arc-shaped groove 2256 and the second arc-shaped groove 2254 respectively, and the blocking block 2253 and the limit switch 2251 can be fixed by means of a screw and a nut, so that the position of the blocking block 2253 and the limit switch 2251 can be adjusted, and the torsion degree of the end of the endoscope 33 is adjusted, and different degrees of fatigue test are facilitated.

[0118] Further, the upper part of the bearing unit 1 is fixedly installed with a monitoring unit 5, which can monitor the test process of the endoscope main body 3, and the monitoring unit 5 comprises:

[0119] A camera support 51 is fixedly installed above the first support frame 11;

[0120] A visual camera 52 is fixedly installed on the top of the camera support 51.

[0121] In the process of testing the endoscope main body 3, the visual camera 52 installed on the top of the camera support 51 is used to monitor the test process.

[0122] Embodiment two

[0123] A test method of an endoscope multi-station fatigue test tool, the test method comprising the following steps:

[0124] Step one, first place a plurality of endoscope main bodies 3 to be tested on a plurality of test units 2;

[0125] Step two, use the positioning assembly 21 to quickly position the endoscope main body 3;

[0126] Step three, the control unit 4 corresponding to the test assembly 22 is opened and closed, and then the test assembly 22 can exert a torsional force on the positioned end of the endoscope body 3, thereby realizing fatigue testing.

[0127] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An endoscope multi-station fatigue test tool, characterized by, The utility model relates to a kind of endoscope fatigue test device, including: Carrying unit (1), multiple endoscope bodies (3) for testing are placed above it;Said carrying unit (1) includes second support frame (12);Said endoscope body (3) includes endoscope handle (31); Test unit (2) is optionally provided with multiple groups, and multiple test units (2) are installed above carrying unit (1), and the test unit (2) includes: Positioning assembly (21) can quickly position endoscope body (3), so that it can be fatigue tested, and the positioning assembly (21) includes handle positioning assembly (211) and extension tube positioning assembly (212); Said handle positioning assembly (211) includes: Placement seat (2111) is provided with placement slot (2119) on the top, which is matched with the shape of endoscope handle (31); Fixed frame (2112) is fixedly arranged on the side of placement seat (2111), and the inside and outside of fixed frame (2112) are rotatably provided with positioning strip (2113) and rotating frame (2114) respectively; Limiting strip (2117) is rotatably arranged in the inside of rotating frame (2114), the bottom end of limiting strip (2117) is rotatably arranged outside the end of positioning strip (2113), and the top of fixed frame (2112) is provided with rotating slot (2116), and limiting strip (2117) is in vertical state and closely abuts the top of positioning strip (2113); Said extension tube positioning assembly (212) includes: Mounting strip (2121) is fixedly arranged above carrying unit (1); Rubber block (2122) is fixedly mounted above mounting strip (2121), and the top of rubber block (2122) is provided with an opening; Clamping groove (2123) is arranged through rubber block (2122) and is communicated with the opening; Test assembly (22) can exert torsional force on the end of positioned endoscope body (3), thereby realizing fatigue test, and the test assembly (22) includes limiting photocoupler assembly (225), and the limiting photocoupler assembly (225) includes: Limiting switch (2251) is mounted above second support frame (12), and the inside of limiting switch (2251) is provided with photosensitive element; Blocking block (2253) is slidably arranged above second support frame (12) through first arc-shaped slot (2256) arranged above second support frame (12); Mounting frame (2255) is slidably arranged above second support frame (12) through second arc-shaped slot (2254) arranged above second support frame (12), and limiting switch (2251) is fixedly mounted on mounting frame (2255); Control unit (4) is mounted above carrying unit (1) and can control the opening and closing of test assembly (22); Said test assembly (22) further includes: A rotating disc (221) is rotatably arranged above the second support frame (12), a rotating block (226) is embedded on the rotating disc (221), and a mounting groove (227) is arranged between the rotating disc (221) and the upper portion of the rotating block (226); A driving motor (222) is fixedly installed below the second support frame (12); A rotary encoder (223) is fixedly installed below the second support frame (12); A torsion sensor (224) is installed between the output end of the driving motor (222) and the rotating disc (221).

2. The multi-station endoscope fatigue testing tool of claim 1, wherein, The bearing unit (1) further comprises a first support frame (11) provided with supporting legs at the bottom; The second support frame (12) is provided with supporting legs at the bottom and is fixedly connected with the first support frame (11).

3. The multi-station endoscope fatigue testing tool of claim 1, wherein, The endoscope body (3) comprises: An insertion tube (32) connected with one end of the endoscope handle (31); An endoscope end (33) connected with the other end of the endoscope handle (31); A handle (34) fixedly arranged on the outer side of the endoscope end (33).

4. The multi-station endoscope fatigue testing tool of claim 3, wherein, The handle positioning assembly (211) is used for fixing the endoscope handle (31), the insertion tube positioning assembly (212) is selectively provided with a plurality of insertion tube positioning assemblies (212) arranged in a linear array, and the plurality of insertion tube positioning assemblies (212) are used for fixing the insertion tube (32).

5. The multi-station endoscope fatigue testing tool of claim 4, wherein, The positioning strip (2113) is provided with a through moving groove, a moving piece (2118) is slidably arranged on the inner wall of the moving groove, the bottom end of the moving piece (2118) extends downward and is fixedly connected with the extrusion block (2115), the top end of the moving piece (2118) extends upward and is threadedly connected with a nut, the positioning assembly (21) further comprises the extrusion block (2115) arranged below the positioning strip (2113) and capable of abutting against the endoscope handle (31) in the placing groove (2119).

6. The multi-station endoscope fatigue testing tool of claim 1, wherein, The limiting light coupling assembly (225) further comprises a limiting piece (2252) fixedly installed on the outer side of the rotating disc (221), and the end of the limiting piece (2252) is connected with a light-emitting diode.

7. The multi-station endoscope fatigue testing tool of claim 2, wherein, A monitoring unit (5) is fixedly installed above the bearing unit (1) and capable of monitoring the testing process of the endoscope body (3), and the monitoring unit (5) comprises: A camera support (51) fixedly installed above the first support frame (11); A visual camera (52) fixedly installed on the top of the camera support (51).

8. The method of claim 1-7, wherein, The testing method comprises the following steps: Step one: firstly, place a plurality of endoscope bodies (3) to be tested on a plurality of test units (2) respectively; Step two: use the positioning assembly (21) to quickly position the endoscope body (3); Step three: control the corresponding test assembly (22) of the control unit (4) to be opened and closed, and then use the test assembly (22) to apply a torsional force to the end of the positioned endoscope body (3) to realize fatigue testing.

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