Endoscope bending fatigue strength testing device

Abstract

The present invention provides an endoscope bending fatigue strength testing device, which relates to the field of endoscope detection technology, and solves the problem that it is impossible to realize synchronous bending detection at two positions through structural improvement to improve the comprehensiveness of detection; it is impossible to realize the adjustment of the bending angle, and it is impossible to realize the quick and convenient adjustment of the bending angle adjustment structure through structural improvement, and it is impossible to realize automatic locking after adjustment. An endoscope bending fatigue strength testing device comprises a workbench; a limiting structure is welded on the workbench. Because the two toggle structures are arranged in a staggered shape, and the spacing between the two toggle structures and the incomplete gear is equal, and the driving motor and the incomplete gear together constitute the synchronous motion structure of the two toggle structures, the synchronous bending detection of the two positions of the endoscope tube is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of endoscope detection, and more specifically, particularly relates to an endoscope bending fatigue strength testing device. Background Art

[0002] An endoscope is a commonly used medical device, which is mainly composed of a flexible part, a light source and a set of lenses. It enters the human body through the body's natural orifices or through a small incision made during surgery. It can directly observe changes in relevant parts. The curved part needs to be bent frequently during use.

[0003] As shown in the application number: CN201910550856.9, in order to solve the problems of large errors, low work efficiency, waste of manpower and material resources in the existing endoscope bending fatigue strength detection, the present invention discloses an endoscope bending fatigue strength tester and a testing method, which includes a fixing device and a rotating device, the fixing device is used to fix the endoscope handle, the rotating device includes a driving mechanism and a push rod mechanism, the driving mechanism is used to drive the push rod mechanism to perform linear reciprocating motion, and the push rod mechanism is used to drive the handle on the endoscope handle to swing back and forth; it has the advantages of more real and accurate test results, adjustable detection bending angle requirements and stroke, more humane, reduced inspection difficulty, and increased inspection accuracy.

[0004] The endoscope detection device similar to the above application still has the following shortcomings when detecting the curved part:

[0005] One is that the existing devices are often only able to achieve single-point bending during bending detection, and are unable to achieve simultaneous bending detection at two locations through structural improvements to improve the comprehensiveness of the detection; the other is that the existing devices are unable to adjust the bending angle, and are unable to achieve quick and convenient adjustment of the bending angle adjustment structure through structural improvements, and are unable to achieve automatic locking after adjustment.

[0006] Therefore, in view of this, the existing structure and defects are studied and improved, and an endoscope bending fatigue strength testing device is provided, in order to achieve a more practical purpose. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides an endoscope bending fatigue strength testing device to solve the problems that the existing devices are often only able to achieve single-point bending during bending detection, and cannot achieve simultaneous bending detection at two positions through structural improvements to improve the comprehensiveness of the detection; secondly, the existing devices cannot achieve bending angle adjustment, cannot achieve quick and convenient adjustment of the bending angle adjustment structure through structural improvements, and cannot achieve automatic locking after adjustment.

[0008] The purpose and effect of the endoscope bending fatigue strength testing device of the present invention are achieved by the following specific technical means:

[0009] A device for testing the bending fatigue strength of an endoscope comprises a workbench; a limiting structure is welded on the workbench, and two toggle structures are slidably connected to the workbench, and an endoscope tube is placed in the limiting structure; a driving structure is installed on the workbench; the limiting structure comprises a sliding seat and a limiting plate, the sliding seat is welded to the top surface of the workbench, and two limiting plates are slidably connected to the sliding seat; the two limiting plates are both rectangular plate structures, and the two limiting plates are symmetrically arranged, and the two limiting plates together constitute a bending angle adjustment structure for the endoscope tube; the two toggle structures are arranged in a staggered manner, and the spacing between the two toggle structures and the incomplete gears is equal, and the driving motor and the incomplete gear together constitute a synchronous motion structure of the two toggle structures.

[0010] Furthermore, the workbench includes a sliding hole and a motor seat. Two sliding holes are symmetrically opened on the top surface of the workbench, and both sliding holes are strip-shaped hole structures; a motor seat is welded on the bottom end surface of the workbench, and the motor seat is an L-shaped seat structure.

[0011] Furthermore, the limiting structure also includes a connecting seat, a rotating seat A and an adjusting rod A, wherein there are two connecting seats in total, and the two connecting seats are respectively welded on the two limiting plates; there are two rotating seats A in total, and the two rotating seats A are symmetrically welded on the sliding seat, and an adjusting rod A is rotatably connected to the two rotating seats A; the head end and the tail end of the adjusting rod A are respectively threadedly connected to the two connecting seats, and the thread directions of the head end and the tail end of the adjusting rod A are opposite, and the adjusting rod A constitutes a synchronous reverse adjustment structure of two connecting seats and two limiting plates.

[0012] Furthermore, the limiting structure also includes a gear, a rotating seat B and an adjusting rod B, the gear is welded on the adjusting rod A; the rotating seat B is welded on the rotating seat A, and an adjusting rod B is rotatably connected to the rotating seat B, and the adjusting rod B is provided with helical teeth; the helical teeth on the adjusting rod B are meshed with the gear, and the adjusting rod B and the gear together constitute a worm gear structure.

[0013] Furthermore, the toggle structure includes a cylindrical rod and a retaining ring, the cylindrical rod is a cylindrical rod-shaped structure, and the cylindrical rod is slidably connected in the sliding hole; two retaining rings are welded on the cylindrical rod, and the two retaining rings together constitute a sliding limiting structure of the cylindrical rod.

[0014] Furthermore, the toggle structure also includes a sleeve, which is a cylindrical tubular structure, and the sleeve is rotatably connected to the cylindrical rod, and the outer wall of the sleeve is polished.

[0015] Furthermore, the toggle structure also includes a sliding block, a sliding rod and an elastic member, the sliding rod is welded to the bottom end surface of the workbench, and the sliding block is slidably connected to the sliding rod, and the sliding block is welded to the cylindrical rod; the elastic member is sleeved on the sliding rod, and the elastic member constitutes an elastic reset structure of the sliding block and the cylindrical rod.

[0016] Furthermore, the toggle structure also includes a tooth row, which is welded to the sliding block; the driving structure also includes a driving motor and an incomplete gear, the driving motor is fixedly connected to the motor seat, and an incomplete gear is installed on the rotating shaft of the driving motor, and the incomplete gear is meshed with the tooth row.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By setting the limiting structure, the bending angle can be adjusted with high adjustment efficiency, and automatic locking can be achieved after adjustment, as follows: First, because the two limiting plates are both rectangular plate structures, and the two limiting plates are symmetrically arranged, and the two limiting plates together constitute the bending angle adjustment structure of the endoscope tube, the bending angle of the endoscope tube can be adjusted by adjusting the positions of the two limiting plates; second, because the head end and the tail end of the adjusting rod A are respectively threadedly connected to the two connecting seats, and the thread directions of the head end and the tail end of the adjusting rod A are opposite, and the adjusting rod A constitutes a synchronous reverse adjustment structure of the two connecting seats and the two limiting plates, the two limiting plates can be quickly adjusted; third, because the spiral teeth on the adjusting rod B are meshed with the gears, and the adjusting rod B and the gears together constitute a worm gear structure, the automatic locking of the adjusting rod A after adjustment is achieved.

[0019] By setting the toggle structure and the driving structure, synchronous reciprocating bending of the two ends of the endoscope tube can be achieved, as follows: first, because the sleeve is a cylindrical tubular structure, and the sleeve is rotatably connected to the cylindrical rod, and the outer wall of the sleeve is polished, when the sleeve contacts the endoscope tube to achieve bending, the wear on the outer wall of the endoscope tube can be reduced; second, because the elastic member is sleeved on the sliding rod, and the elastic member constitutes the sliding block and the elastic reset structure of the cylindrical rod; third, because the driving motor is fixedly connected to the motor seat, and an incomplete gear is installed on the rotating shaft of the driving motor, and the incomplete gear is meshed with the gear row, when the driving motor drives the incomplete gear to rotate, the reciprocating motion of the cylindrical rod can be achieved, thereby realizing the reciprocating bending detection of the endoscope tube; fourth, because the two toggle structures are arranged in a staggered shape, and the spacing between the two toggle structures and the incomplete gear is equal, and the driving motor and the incomplete gear together constitute the synchronous motion structure of the two toggle structures, thereby realizing the synchronous bending detection of two positions of the endoscope tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an axial structural schematic diagram of the present invention.

[0021] Figure 2 The present invention Figure 1 Schematic diagram of the axial structure in another direction.

[0022] Figure 3 The present invention Figure 2 A is an enlarged structural diagram of FIG.

[0023] Figure 4 The present invention Figure 2 Schematic diagram of the enlarged structure at B.

[0024] Figure 5 It is a main structural schematic diagram of the present invention.

[0025] Figure 6 The present invention Figure 5 Enlarged structural diagram at C.

[0026] Figure 7 It is a schematic diagram of the structure of the present invention when viewed from above.

[0027] Figure 8 The present invention Figure 7 Enlarged structural diagram at D.

[0028] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0029] 1. Workbench; 101. Sliding hole; 102. Motor seat; 2. Limiting structure; 201. Sliding seat; 202. Limiting plate; 203. Connecting seat; 204. Rotating seat A; 205. Adjusting rod A; 206. Gear; 207. Rotating seat B; 208. Adjusting rod B; 3. Toggle structure; 301. Columnar rod; 302. Retaining ring; 303. Sleeve; 304. Sliding block; 305. Sliding rod; 306. Elastic member; 307. Tooth row; 4. Driving structure; 401. Driving motor; 402. Incomplete gear; 5. Endoscope tube. DETAILED DESCRIPTION

[0030] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example:

[0034] As attached Figure 1 To Attachment Figure 8 As shown:

[0035] The present invention provides an endoscope bending fatigue strength testing device, comprising a workbench 1; a limiting structure 2 is welded on the workbench 1, and two toggle structures 3 are slidably connected to the workbench 1, and an endoscope tube 5 is placed in the limiting structure 2; a driving structure 4 is installed on the workbench 1; Figure 2 The limiting structure 2 includes a sliding seat 201 and a limiting plate 202. The sliding seat 201 is welded to the top surface of the workbench 1, and two limiting plates 202 are slidably connected to the sliding seat 201; the two limiting plates 202 are both rectangular plate structures, and the two limiting plates 202 are symmetrically arranged, and the two limiting plates 202 together constitute a bending angle adjustment structure of the endoscope tube 5, so that the bending angle of the endoscope tube 5 can be adjusted by adjusting the positions of the two limiting plates 202; refer to Figure 7 The two toggle structures 3 are arranged in a staggered manner, and the spacing between the two toggle structures 3 and the incomplete gear 402 is equal, and the driving motor 401 and the incomplete gear 402 together constitute a synchronous motion structure of the two toggle structures 3, thereby realizing synchronous bending detection of two positions of the endoscope tube 5.

[0036] References Figure 2 and Figure 5The workbench 1 includes a sliding hole 101 and a motor seat 102. Two sliding holes 101 are symmetrically opened on the top surface of the workbench 1, and the two sliding holes 101 are both strip-shaped hole structures; the motor seat 102 is welded on the bottom end surface of the workbench 1, and the motor seat 102 is an L-shaped seat structure.

[0037] References Figure 2 and Figure 3 The limiting structure 2 also includes a connecting seat 203, a rotating seat A204 and an adjusting rod A205. There are two connecting seats 203, and the two connecting seats 203 are respectively welded on the two limiting plates 202; there are two rotating seats A204, and the two rotating seats A204 are symmetrically welded on the sliding seat 201, and an adjusting rod A205 is rotatably connected to the two rotating seats A204; the head end and the tail end of the adjusting rod A205 are respectively threadedly connected to the two connecting seats 203, and the thread directions of the head end and the tail end of the adjusting rod A205 are opposite, and the adjusting rod A205 constitutes a synchronous reverse adjustment structure of the two connecting seats 203 and the two limiting plates 202, thereby realizing the rapid adjustment of the two limiting plates 202.

[0038] References Figure 2 and Figure 4 The limiting structure 2 also includes a gear 206, a rotating seat B207 and an adjusting rod B208, the gear 206 is welded on the adjusting rod A205; the rotating seat B207 is welded on the rotating seat A204, and an adjusting rod B208 is rotatably connected to the rotating seat B207, and the adjusting rod B208 is provided with helical teeth; the helical teeth provided on the adjusting rod B208 are meshed with the gear 206, and the adjusting rod B208 and the gear 206 together form a worm gear structure, thereby realizing automatic locking after the adjusting rod A205 is adjusted.

[0039] References Figure 2 The toggle structure 3 includes a cylindrical rod 301 and a retaining ring 302. The cylindrical rod 301 is a cylindrical rod-shaped structure, and the cylindrical rod 301 is slidably connected in the sliding hole 101; two retaining rings 302 are welded on the cylindrical rod 301, and the two retaining rings 302 together constitute a sliding limiting structure of the cylindrical rod 301.

[0040] References Figure 2 The toggle structure 3 also includes a sleeve 303, which is a cylindrical tubular structure, and the sleeve 303 is rotatably connected to the cylindrical rod 301, and the outer wall of the sleeve 303 is polished, so that when the sleeve 303 contacts the endoscope tube 5 to achieve bending, the wear on the outer wall of the endoscope tube 5 can be reduced.

[0041] References Figure 7 and Figure 8The toggle structure 3 also includes a sliding block 304, a sliding rod 305 and an elastic member 306. The sliding rod 305 is welded to the bottom end surface of the workbench 1, and the sliding block 304 is slidably connected to the sliding rod 305, and the sliding block 304 is welded to the columnar rod 301; the elastic member 306 is sleeved on the sliding rod 305, and the elastic member 306 constitutes an elastic reset structure of the sliding block 304 and the columnar rod 301.

[0042] References Figure 7 and Figure 8 The toggle structure 3 also includes a tooth row 307, which is welded to the sliding block 304; the driving structure 4 also includes a driving motor 401 and an incomplete gear 402, the driving motor 401 is fixedly connected to the motor base 102, and the incomplete gear 402 is installed on the rotating shaft of the driving motor 401, and the incomplete gear 402 is meshed with the tooth row 307, so that when the driving motor 401 drives the incomplete gear 402 to rotate, the reciprocating motion of the cylindrical rod 301 can be realized, thereby realizing the reciprocating bending detection of the endoscope tube 5.

[0043] The specific usage and function of this embodiment are as follows:

[0044] During use, when the bending position needs to be adjusted, first, because the two limit plates 202 are both rectangular plate structures, and the two limit plates 202 are symmetrically arranged, and the two limit plates 202 together constitute the bending angle adjustment structure of the endoscope tube 5, the bending angle of the endoscope tube 5 can be adjusted by adjusting the positions of the two limit plates 202; second, because the head end and the tail end of the adjusting rod A205 are respectively threadedly connected to the two connecting seats 203, and the thread directions of the head end and the tail end of the adjusting rod A205 are opposite, and the adjusting rod A205 constitutes a synchronous reverse adjustment structure of the two connecting seats 203 and the two limit plates 202, the two limit plates 202 can be quickly adjusted; third, because the spiral teeth on the adjusting rod B208 are meshed with the gear 206, and the adjusting rod B208 and the gear 206 together constitute a worm gear structure, the automatic locking of the adjusting rod A205 after adjustment is achieved.

[0045] During use, first, because the sleeve 303 is a cylindrical tubular structure, and the sleeve 303 is rotatably connected to the cylindrical rod 301, and the outer wall of the sleeve 303 is polished, when the sleeve 303 contacts the endoscope tube 5 to achieve bending, the wear on the outer wall of the endoscope tube 5 can be reduced; second, because the elastic member 306 is sleeved on the sliding rod 305, and the elastic member 306 constitutes the elastic reset structure of the sliding block 304 and the cylindrical rod 301; third, because the driving motor 401 is fixedly connected to the motor seat 102, and the rotating shaft of the driving motor 401 is installed with The incomplete gear 402 is meshed with the tooth row 307, so that when the driving motor 401 drives the incomplete gear 402 to rotate, the reciprocating motion of the cylindrical rod 301 can be realized, thereby realizing the reciprocating bending detection of the endoscope tube 5; fourthly, because the two toggle structures 3 are arranged in a staggered manner, and the spacing between the two toggle structures 3 and the incomplete gear 402 is equal, and the driving motor 401 and the incomplete gear 402 together constitute a synchronous motion structure of the two toggle structures 3, thereby realizing the synchronous bending detection of two positions of the endoscope tube 5.

[0046] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An endoscope bending fatigue strength testing device, characterized in that: The invention comprises a workbench (1); a limiting structure (2) is welded on the workbench (1), two toggle structures (3) are slidably connected to the workbench (1), and an endoscope tube (5) is placed in the limiting structure (2); a driving structure (4) is installed on the workbench (1); the limiting structure (2) comprises a sliding seat (201) and a limiting plate (202), the sliding seat (201) is welded to the top surface of the workbench (1), and two limiting plates (202) are slidably connected to the sliding seat (201). 202); the two limit plates (202) are both rectangular plate structures, and the two limit plates (202) are symmetrically arranged, and the two limit plates (202) together constitute a bending angle adjustment structure of the endoscope tube (5); the two toggle structures (3) are arranged in a staggered manner, and the spacing between the two toggle structures (3) and the incomplete gear (402) is equal, and the driving motor (401) and the incomplete gear (402) together constitute a synchronous motion structure of the two toggle structures (3); The limiting structure (2) further comprises a connecting seat (203), a rotating seat A (204) and an adjusting rod A (205); the connecting seats (203) are provided with two in total, and the two connecting seats (203) are respectively welded to the two limiting plates (202); the rotating seats A (204) are provided with two in total, and the two rotating seats A (204) are symmetrically welded to the sliding seat (201), and an adjusting rod A (205) is rotatably connected to the two rotating seats A (204); the head end and the tail end of the adjusting rod A (205) are respectively threadedly connected to the two connecting seats (203), and the thread directions of the head end and the tail end of the adjusting rod A (205) are opposite, and the adjusting rod A (205) constitutes a synchronous reverse adjustment structure of the two connecting seats (203) and the two limiting plates (202); The limiting structure (2) further comprises a gear (206), a rotating seat B (207) and an adjusting rod B (208); the gear (206) is welded to the adjusting rod A (205); the rotating seat B (207) is welded to the rotating seat A (204), and an adjusting rod B (208) is rotatably connected to the rotating seat B (207), and the adjusting rod B (208) is provided with helical teeth; the helical teeth provided on the adjusting rod B (208) mesh with the gear (206), and the adjusting rod B (208) and the gear (206) together form a worm gear structure; The toggle structure (3) comprises a columnar rod (301) and a retaining ring (302); the columnar rod (301) is a cylindrical rod-shaped structure, and the columnar rod (301) is slidably connected in the sliding hole (101); two retaining rings (302) are welded to the columnar rod (301), and the two retaining rings (302) together form a sliding limiting structure of the columnar rod (301).

2. The endoscope bending fatigue strength testing device according to claim 1, characterized in that: The workbench (1) comprises a sliding hole (101) and a motor seat (102); the top end surface of the workbench (1) is symmetrically provided with two sliding holes (101), and the two sliding holes (101) are both strip-shaped hole structures; the bottom end surface of the workbench (1) is welded with a motor seat (102), and the motor seat (102) is an L-shaped seat structure.

3. The endoscope bending fatigue strength testing device according to claim 1, characterized in that: The toggle structure (3) further comprises a sleeve (303), the sleeve (303) being a cylindrical tubular structure, the sleeve (303) being rotatably connected to the columnar rod (301), and the outer wall of the sleeve (303) being polished.

4. The endoscope bending fatigue strength testing device according to claim 1, characterized in that: The toggle structure (3) further comprises a sliding block (304), a sliding rod (305) and an elastic member (306); the sliding rod (305) is welded to the bottom end surface of the workbench (1), the sliding block (304) is slidably connected to the sliding rod (305), and the sliding block (304) is welded to the columnar rod (301); the elastic member (306) is sleeved on the sliding rod (305), and the elastic member (306) forms an elastic reset structure of the sliding block (304) and the columnar rod (301).

5. The endoscope bending fatigue strength testing device according to claim 1, characterized in that: The toggle structure (3) further comprises a tooth row (307), wherein the tooth row (307) is welded to the sliding block (304); the drive structure (4) further comprises a drive motor (401) and an incomplete gear (402), wherein the drive motor (401) is fixedly connected to the motor base (102), and an incomplete gear (402) is mounted on the rotating shaft of the drive motor (401), and the incomplete gear (402) is meshed with the tooth row (307).

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