CN116327085A - Damping adjusting device for endoscope hand wheel - Google Patents
Damping adjusting device for endoscope hand wheel Download PDFInfo
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- CN116327085A CN116327085A CN202310064566.XA CN202310064566A CN116327085A CN 116327085 A CN116327085 A CN 116327085A CN 202310064566 A CN202310064566 A CN 202310064566A CN 116327085 A CN116327085 A CN 116327085A
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- 238000013016 damping Methods 0.000 title claims abstract description 75
- 230000007246 mechanism Effects 0.000 claims abstract description 79
- 238000003825 pressing Methods 0.000 claims description 24
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013399 early diagnosis Methods 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0052—Constructional details of control elements, e.g. handles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00057—Operational features of endoscopes provided with means for testing or calibration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00066—Proximal part of endoscope body, e.g. handles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0057—Constructional details of force transmission elements, e.g. control wires
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- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
Abstract
The invention discloses a damping adjusting device for an endoscope hand wheel. The damping device comprises a main shaft, a hand wheel body mechanism, a damping mechanism and an adjustable mechanism, wherein the hand wheel body mechanism is sleeved on the main shaft, the damping mechanism is arranged in the hand wheel body mechanism, and the adjustable mechanism for adjusting the damping mechanism is arranged on the main shaft above the damping mechanism; the hand wheel body mechanism is rotated to drive the chain wheel to rotate so as to output and drive the endoscope hand wheel to work, damping mechanism generates damping of the rotation output of the chain wheel, and the damping mechanism generates output damping to be adjusted through the adjustable mechanism. The scheme provided by the invention is simple and easy to adjust, and is convenient for compensating the problem of unbalanced moment caused by various part errors in the assembly process of the endoscope, so that the damping of the hand wheel of the endoscope is consistent, and the consistency of products in the mass production process is realized.
Description
Technical Field
The invention relates to a hand wheel adjusting device in the field of medical endoscope equipment, in particular to an electronic endoscope hand wheel damping adjusting device.
Background
The endoscope is used as common auxiliary diagnosis and treatment equipment in modern medical treatment, and is often used for the early diagnosis and operation treatment of internal gastrointestinal and other organ lesions. The doctor carries out diversified formation of image observation in the internal through controlling endoscope hand wheel and then control front end flexion, when the doctor needs the fixed point long-time observation, needs to twist the locking closure and then locks front end flexion for the hand wheel can not automatic back. The proper operation moment under the state of the hand wheel relaxation is particularly important for the operation accuracy and the comfort of lasting operation of doctors; meanwhile, in the state of legal requirements for locking, the hand wheel cannot be completely locked so as to prevent medical accidents that the hand wheel cannot be unlocked and the front end bending part cannot be corrected.
A locking mechanism for an endoscope hand wheel is described in patents CN110301881a and CN112450856a, respectively; in patent CN113447178A, an endoscopic torque measuring device is described; but none involve damping adjustments to both the locked and unlocked states of the endoscope hand wheel.
Therefore, a comfortable operation moment in the state of loosening the adjusting hand wheel and a proper and non-locking moment in the state of locking are quite important, and especially, the consistency of the operation moment of the hand wheel is very necessary for mass production.
Disclosure of Invention
In order to solve the problems in the background art, the invention aims to provide the damping adjusting device for the endoscope hand wheel, so that the hand wheel operation moment can be accurately adjusted and measured during the mass production and assembly of the endoscope, and the consistency and the comfortableness of the operation hand feeling of doctors are ensured.
The scheme provided by the invention is simple and easy to adjust, and is convenient for compensating the problem of unbalanced moment caused by various part errors in the assembly process of the endoscope, so that the damping of the hand wheel of the endoscope is consistent, and the consistency of products in the mass production process is realized.
The technical scheme adopted by the invention is as follows:
the invention comprises a main shaft, a hand wheel body mechanism, a damping mechanism and an adjustable mechanism, wherein the main shaft is sleeved with the hand wheel body mechanism, the damping mechanism is arranged in the hand wheel body mechanism, and the main shaft above the damping mechanism is provided with the adjustable mechanism for adjusting the damping mechanism; the hand wheel body mechanism is rotated to drive the chain wheel to rotate so as to output and drive the endoscope hand wheel to work, damping mechanism generates damping of the rotation output of the chain wheel, and the damping mechanism generates output damping to be adjusted through the adjustable mechanism.
The hand wheel body mechanism comprises a knob cover, a knob shell, a rotating shaft and a chain wheel, wherein the rotating shaft and the chain wheel are rotatably and movably sleeved outside the main shaft, and the lower end of the rotating shaft is coaxially and fixedly connected with the chain wheel; the rotary shaft is coaxially and fixedly sleeved with a knob cover, the knob cover is coaxially and fixedly sleeved with a fixed knob shell, and an inner cavity for installing a damping mechanism and an adjustable mechanism is formed inside the knob shell and the knob cover.
The bottom surface of the knob cover in the inner cavity is fixedly provided with a knob cover pressing plate, and a damping mechanism is arranged in the inner cavity above the knob cover pressing plate.
The knob cover pressing plate is provided with an inner hole, the inner hole is sleeved on the rotating shaft through threads, and the knob cover is clamped between the bottom surface of the knob cover pressing plate and the periphery of the rotating shaft, so that the knob cover is coaxially and fixedly sleeved outside the rotating shaft through the knob cover pressing plate.
The damping mechanism comprises a locking seat, a disc spring, a square shaft sleeve and a friction plate; the friction plate is fixed on the knob cover pressing plate, a locking seat is arranged above the friction plate, the locking seat is sleeved on the main shaft in a non-rotatable and axial movable way through a square shaft sleeve, one end of the belleville spring is fixed on the locking seat, and the bottom surface of the belleville spring is in friction connection with the upper surface of the friction plate; an adjustable mechanism is sleeved on the main shaft above the locking seat.
The square shaft sleeve and the locking seat are provided with square holes, the square holes of the square shaft sleeve are sleeved on the square shaft section arranged on the main shaft, and the square holes of the locking seat are sleeved on the square peripheral surface of the square shaft sleeve.
The adjustable mechanism comprises a brake wheel, an adjusting wheel, a locking plate, a locking wheel, a locking shell and a locking cover, wherein the adjusting wheel is fixedly sleeved on the main shaft through the brake wheel, the outer part of the adjusting wheel is sleeved on the locking plate through threads, the upper part of the locking plate is fixedly connected into a whole through a locking plate tightening nut and the locking wheel, the lower part of the locking plate stretches into the inner cavity and is pressed onto the locking seat, and the locking cover is fixedly sleeved outside the locking wheel through the locking shell.
The locking plate is sleeved with a locking plate tightening nut through threads, and the locking plate tightening nut is fixedly connected with the locking wheel.
The brake wheel is arranged outside the upper end of the main shaft through threads and is connected to the upper end face of the adjusting wheel, so that the adjusting wheel is arranged on the main shaft in a compressed mode in the axial direction.
The top surface of the locking seat is provided with an elastic sheet, and the lower end of the locking plate is connected with the elastic sheet in a matched manner through a buckle, so that the locking seat and the locking plate are fixed in the circumferential direction in relative synchronization.
The disk spring, the friction plate, the knob cover pressing plate and the rotary knob are fixed in the hand wheel; the locking plate moves downwards/upwards to drive the locking seat to move downwards/upwards so as to compress/relax the belleville springs, thereby playing a role in adjusting the forward pressure and further adjusting the friction force between the belleville springs and the friction plate; the locking wheel is fixed above the locking plate through a characteristic and can drive the locking plate to rotate; the locking plate is tightly screwed with the nut and tightly pressed by the screw thread on the locking plate; the multi-head screw thread outside the adjusting wheel is matched with the screw thread inside the locking plate, and the compression/release pressure of the locking plate is adjusted by adjusting the meshing length; the internal screw thread of the brake wheel is matched with the main shaft, so that the function of pressing the adjusting wheel is achieved.
The beneficial effects of the invention are as follows:
the invention can conveniently adjust the damping of the endoscope hand wheel in the loosening/locking states. In the assembly stage of the endoscope hand wheel, the adjustment can be completed, meanwhile, the inconsistency caused by the machining tolerance and the assembly error of the rear end transmission mechanism is ignored, and the torque consistency of the mass production product is ensured through the torque measurement tool. In addition, the device can also be convenient for repairing and adjusting moment change caused by abrasion after being used for a long time by doctors. The adjusting device is simple and convenient to adjust, low in cost, and capable of realizing mass production operability and stability of product assembly quality.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a cross-sectional view of an endoscopic hand wheel damping adjustment device.
FIG. 2 is an exploded view of an endoscopic hand wheel damping adjustment device.
Fig. 3 is a schematic view of endoscopic hand wheel damping adjustment.
Fig. 4 is a schematic diagram of endoscopic hand wheel moment measurement.
FIG. 5 is a schematic view of an endoscopic torque measurement tool.
Fig. 6 is a schematic view of a partial feature of an endoscopic hand wheel adjustment mechanism.
In the drawing the view of the figure,
1-brake wheel, 101-internal thread, 102-threaded hole,
2-adjusting wheel, 201-external thread, 202-notch,
3-locking plate tightening nut, 301-internal thread,
4-locking plate, 401-internal thread, 402-external thread, 403-groove, 404-groove,
5-locking seat, 6-belleville spring, 7-knob cover pressing plate, 8-rotating shaft, 9-main shaft, 901-main shaft thread, 10-sprocket, 11-square shaft sleeve, 12-friction plate, 13-knob cover, 14-knob shell,
15-lock wheel, 1501-lock wheel protrusion, 1502-screw hole,
16-lock shell,
17-lock cover, 18-spring piece, 1801-spring piece protrusion,
19-adjusting tool,
20-locking tool and 21-moment measuring tool.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1 and 2, the hand wheel damping adjustment device comprises a main shaft 9, a hand wheel body mechanism, a damping mechanism and an adjustable mechanism, and specifically comprises hand wheel body parts such as a main shaft 9, a knob cover 13, a knob shell 14, a lock shell 16, a lock cover 17 and the like. A hand wheel body mechanism is sleeved on the main shaft 9, a damping mechanism is arranged in the hand wheel body mechanism, and an adjustable mechanism for adjusting the damping mechanism is arranged on the main shaft 9 above the damping mechanism; the hand wheel body mechanism is rotated to drive the chain wheel to rotate so as to output and drive the endoscope hand wheel to work, damping mechanism generates damping of the rotation output of the chain wheel, and the damping mechanism generates output damping to be adjusted through the adjustable mechanism.
The hand wheel body mechanism comprises a knob cover 13, a knob shell 14, a rotating shaft 8 and a chain wheel 10, wherein the rotating shaft 8 and the chain wheel 10 are rotatably and movably sleeved outside the main shaft 9, the lower end of the rotating shaft 8 is fixedly connected with the chain wheel 10 in a coaxial way, and the chain wheel 10 is used for connecting an external hand wheel through chain transmission; the rotary shaft 8 is coaxially and fixedly sleeved with a knob cover 13, the knob cover 13 is coaxially and fixedly sleeved with a knob shell 14, and an inner cavity for installing a damping mechanism and an adjustable mechanism is formed inside the knob shell 14 and the knob cover 13.
The bottom surface of the knob cover 13 in the inner cavity is fixedly provided with a knob cover pressing plate 7, and a damping mechanism and an adjustable mechanism are arranged in the inner cavity above the knob cover pressing plate 7.
The knob cover pressing plate 7 is provided with an internal threaded hole, the internal threaded hole is sleeved on the rotating shaft 8, and the knob cover 13 is clamped between the bottom surface of the knob cover pressing plate 7 and the periphery of the rotating shaft 8, so that the knob cover 13 is coaxially and fixedly sleeved outside the rotating shaft 8 through the knob cover pressing plate 7. The knob cover pressing plate 7 is screwed tightly with the rotating shaft 8, the rotating shaft 8 is fixed on the knob cover 13, and the friction plate 12 is arranged on the knob pressing plate 7; this makes the rotary shaft 8, the knob cover pressing plate 7 and the knob cover 13 fixed as one body, and the fixed knob housing 14 is also fixed as one body.
The knob cover 13 and the knob housing 14 cooperate as an operation hand wheel, and when the operation hand wheel is rotated, damping is provided by friction between the friction plate 12 and the belleville springs 6, and rotational moment is transmitted by cooperation of the rotating shaft 8 and the sprocket 10.
The damping mechanism comprises a locking seat 5, a disc spring 6, a square shaft sleeve 11 and a friction plate 12; the friction plate 12 is fixed on the knob cover pressing plate 7, the locking seat 5 is arranged above the friction plate 12, the locking seat 5 is sleeved on the main shaft 9 in a non-rotatable and only axially movable way through the square shaft sleeve 11, one end of the disc spring 6 is fixed on the locking seat 5, and the bottom surface of the disc spring 6 is in friction connection with the upper surface of the friction plate 12; an adjustable mechanism is sleeved on the main shaft 9 above the locking seat 5.
Square holes are formed in the square shaft sleeve 11 and the locking seat 5, the square holes of the square shaft sleeve 11 are sleeved on square shaft sections arranged on the main shaft 9, and the square holes of the locking seat 5 are sleeved on the square peripheral surface of the square shaft sleeve 11, so that the locking seat 5 is sleeved on the main shaft 9 in a non-rotatable and axially movable manner through the square shaft sleeve 11.
The adjustable mechanism comprises a brake wheel 1, an adjusting wheel 2, a locking plate 4, a locking wheel 15, a lock shell 16 and a lock cover 17, wherein the adjusting wheel 2 is fixedly sleeved on a main shaft 9 through the brake wheel 1 and is positioned above a knob shell 14 of the hand wheel body mechanism, the adjusting wheel 2 is externally sleeved on the locking plate 4 through threads, the upper part of the locking plate 4 is fixedly connected with the locking wheel 15 into a whole through the locking plate and a nut 3, the lower part of the locking plate 4 stretches into an inner cavity and is pressed onto the locking seat 5, and the lock cover 17 is fixedly sleeved outside the locking wheel 15 through the lock shell 16.
The specific implementation can be adjusted by damping in advance: through adjusting wheel 2 for locking plate 4, locking plate and tightening nut 3 and locking wheel 15 are formed wholly around adjusting wheel 2 screw thread rotation and then adjust locking plate 4 along axial installation height and then adjust locking seat 5 along axial height, adjust the interval between belleville spring 6 and the friction disc 12 of locking seat 5 bottom surface, realize damping adjustment.
The damping is adjusted by adjusting the wheel 2 by adjusting the two states of locking and releasing, and the damping is adjusted by 16 and 17 without installation.
The upper part of the locking plate 4 is externally sleeved with a locking plate tightening nut 3 through threads, and the locking plate tightening nut 3 is fixedly connected with a locking wheel 15.
The brake wheel 1 is arranged outside the upper end of the main shaft 9 through threads and is connected to the upper end surface of the adjusting wheel 2, so that the adjusting wheel 2 is axially pressed and arranged on the main shaft 9.
The important parts of the invention are arranged as follows:
the belleville spring 6 is fixed in an inner cavity formed by the knob cover 13 and the knob shell 14 and is rubbed with the friction plate 12 mutually to provide friction force for rotating the endoscope hand wheel;
the locking seat 5 is matched with a square shaft sleeve 11 fixed on the main shaft 9, so that the locking seat 5 can not rotate; can only move up and down along with the adjustment of the locking plate 4, and the locking plate 4 moves up and down to compress/loosen the locking seat 5, so that the disc spring 6 is compressed/loosened to play a role in regulating the forward pressure.
The bottom surface of the locking seat 5 is fixed with a spring piece 18, and the spring piece 18 is matched with the locking plate 4 to realize the feedback of the positioning moment of the locking/releasing two states of the hand wheel.
As shown in fig. 6, the locking plate 4 is provided with an internal thread 401 in the central hole, the internal thread 401 cooperates with the external thread 201 of the adjusting wheel 2 to form a thread pair, the locking plate 4 is driven by the rotation of the locking wheel 15 to rotate to drive the thread pair to move up and down, and further the damping difference between the locking state and the releasing state of the hand wheel is realized.
As shown in fig. 6, the external thread 201 of the adjusting wheel 2 is matched with the internal thread 401 of the locking plate 4, so that the engagement length is adjusted to adjust the compression/release pressure of the locking plate 4; by adjusting the pre-engagement length of the lock wheel 15 and the lock plate 4, damping adjustment of both locked/unlocked states can be achieved.
As shown in fig. 6, the inner hole of the locking plate and the nut 3 is provided with an inner thread 301, and the inner thread 301 of the locking plate and the nut 3 is matched with an outer thread 402 on the locking plate 4 to tightly press the locking plate 4 and the locking wheel 15 to be fixedly connected.
As shown in fig. 6, the brake wheel 1 is provided with an internal thread 101, and the internal thread 101 is matched with an external thread 901 of the main shaft 9, so as to further play roles in compressing the adjusting wheel 2 and preventing looseness.
The locking plate 4 is provided with a plurality of grooves 403, and the grooves 403 and the protrusions 1501 below the lock wheel 15 are matched to form circumferential positioning.
The top surface of the locking seat 5 is provided with an elastic sheet 18, and the lower end of the locking plate 4 is connected with the elastic sheet 18 in a matched manner through a buckle, so that the locking seat 5 and the locking plate 4 are fixed in the circumferential direction in relative synchronization. Specifically, as shown in fig. 6, two grooves 404 are formed on the side of the locking plate 4, the elastic sheet 18 is provided with a protrusion 1801, and the grooves 404 are matched with the protrusions 1801 of the elastic sheet 18 to lock and unlock the knob and position and feed back the moment in place.
The lock housing 16 is provided with screw fixation holes on the side and the lock wheel 15 is provided with screw holes 1502 on the side, the screws passing through the screw fixation holes on the lock housing 16 and being screwed into the screw holes 1502.
The lock shell 16 is provided with a groove which is matched and fixed with the lock cover 17 into a whole; the locking cover 17 is twisted left and right, and the locking plate 4 is driven to rotate left and right.
As shown in fig. 3, an adjusting tool 19 for rotating the adjusting wheel 2 and a locking tool 20 for rotating the adjusting brake wheel 1 are also provided in the implementation. The upper side of the adjusting wheel 2 is provided with two notches 202 which are matched with the bulges 1901 of the adjusting tool 19, and when the adjusting tool 19 is twisted clockwise/anticlockwise, the adjusting function of increasing/loosening the moment of the rotating wheel can be achieved. Four screw holes 102 are arranged on the upper side of the brake wheel 1, when the moment of the rotating wheel is adjusted, the adjusting wheel 2 can be loosened/locked by matching with the locking tool 20, and the adjusted 4 screw holes are screwed into a straight set screw for preventing the rotation between the brake wheel 1 and the adjusting wheel 2 from being loose.
As shown in fig. 4 and 5, the internal groove of the torque measuring tool is matched with the hand wheel knob shell, and the upper hexagonal cylinder is connected with the standard torque wrench 21 to measure the rotation torque of the hand wheel.
The adjusting working process of the invention is as follows:
when the locking device is assembled, the locking wheel 15 is twisted to be in a locking state, the brake wheel 1 is loosened through the locking tool 20, the adjusting wheel 2 is adjusted through the adjusting tool 19, the brake wheel 1 is locked through the locking tool 20, after adjustment, whether the moment in the locking state meets the requirement or not is measured through the moment measuring tool 21, if the moment does not meet the moment requirement in the locking state, the locking device returns to be fine-tuned again; if the requirement is met, the lock wheel 15 is twisted to be in a relaxed state, then the adjustment is sequentially carried out, after the adjustment, whether the torque in the relaxed state meets the requirement or not is measured through the torque measuring tool 21, and if the torque does not meet the requirement, the fine adjustment is carried out again; if the requirement is met, verifying whether the moment of the locking state meets the requirement again, if not, returning to fine tuning again, if so, finishing the adjustment, and continuing the subsequent assembly step.
In the above-mentioned endoscope hand wheel damping adjustment process, damping under the two states of adjusting hand wheel relaxation/locking that can be very convenient in the endoscope assembly stage, neglect the processing tolerance of rear end drive mechanism and the inconsistent that assembly error brought simultaneously, ensured the moment uniformity of mass production product through moment measurement frock. In addition, the repair adjustment can be conveniently carried out on moment change caused by abrasion.
The specific embodiments described in the present invention are merely illustrative of the spirit of the invention, and the terminology used in the present invention is for the purpose of describing and explaining the nature of the invention more conveniently. Various modifications and substitutions may be made to the specific embodiments described, or in a similar manner, or the terms may be interpreted as any additional limitations without departing from the spirit of the invention.
Claims (10)
1. An endoscope hand wheel damping adjusting device which is characterized in that: the damping device comprises a main shaft (9), a hand wheel body mechanism, a damping mechanism and an adjustable mechanism, wherein the hand wheel body mechanism is sleeved on the main shaft (9), the damping mechanism is arranged in the hand wheel body mechanism, and the adjustable mechanism for adjusting the damping mechanism is arranged on the main shaft (9) above the damping mechanism; the hand wheel body mechanism is rotated to drive the chain wheel to rotate so as to output and drive the endoscope hand wheel to work, damping mechanism generates damping of the rotation output of the chain wheel, and the damping mechanism generates output damping to be adjusted through the adjustable mechanism.
2. The endoscopic hand wheel damping adjustment device according to claim 1, wherein:
the hand wheel body mechanism comprises a knob cover (13), a knob shell (14), a rotating shaft (8) and a chain wheel (10), wherein the rotating shaft (8) and the chain wheel (10) are rotatably and movably sleeved outside the main shaft (9), and the lower end of the rotating shaft (8) is coaxially and fixedly connected with the chain wheel (10); the rotary shaft (8) is coaxially and fixedly sleeved with a knob cover (13), the knob cover (13) is coaxially and fixedly sleeved with a knob shell (14), and an inner cavity for installing a damping mechanism and an adjustable mechanism is formed inside the knob shell (14) and the knob cover (13).
3. The endoscopic hand wheel damping adjustment device according to claim 1, wherein:
the bottom surface of the knob cover (13) in the inner cavity is fixedly provided with a knob cover pressing plate (7), and a damping mechanism is arranged in the inner cavity above the knob cover pressing plate (7).
4. The endoscopic hand wheel damping adjustment device according to claim 1, wherein:
the knob cover pressing plate (7) is provided with an inner hole, the inner hole is sleeved on the rotating shaft (8) through threads, and the knob cover (13) is clamped between the bottom surface of the knob cover pressing plate (7) and the periphery of the rotating shaft (8), so that the knob cover (13) is coaxially and fixedly sleeved outside the rotating shaft (8) through the knob cover pressing plate (7).
5. The endoscopic hand wheel damping adjustment device according to claim 1, wherein:
the damping mechanism comprises a locking seat (5), a disc spring (6), a square shaft sleeve (11) and a friction plate (12); the friction plate (12) is fixed on the knob cover pressing plate (7), the locking seat (5) is arranged above the friction plate (12), the locking seat (5) is sleeved on the main shaft (9) in a non-rotatable and axially movable way through the square shaft sleeve (11), one end of the belleville spring (6) is fixed on the locking seat (5), and the bottom surface of the belleville spring (6) is in friction connection with the upper surface of the friction plate (12); an adjustable mechanism is sleeved on a main shaft (9) on the locking seat (5).
6. The endoscopic hand wheel damping adjustment device according to claim 1, wherein:
square holes are formed in the square shaft sleeve (11) and the locking seat (5), the square holes of the square shaft sleeve (11) are sleeved on a square shaft section arranged on the main shaft (9), and the square holes of the locking seat (5) are sleeved on the square peripheral surface of the square shaft sleeve (11).
7. The endoscopic hand wheel damping adjustment device according to claim 1, wherein:
the adjustable mechanism comprises a brake wheel (1), an adjusting wheel (2), a locking plate (4), a locking wheel (15), a locking shell (16) and a locking cover (17), wherein the adjusting wheel (2) is fixedly sleeved on a main shaft (9) through the brake wheel (1), the adjusting wheel (2) is externally sleeved on the locking plate (4) through threads, the upper part of the locking plate (4) is fixedly connected with the locking wheel (15) into a whole through the locking plate and a fastening nut (3), the lower part of the locking plate (4) stretches into an inner cavity and is pressed onto the locking seat (5), and the locking cover (17) is fixedly sleeved outside the locking wheel (15) through the locking shell (16).
8. The endoscopic hand wheel damping adjustment device according to claim 7, wherein:
the upper part of the locking plate (4) is sleeved with the locking plate and tightly connected with the nut (3) through threads, and the locking plate and tightly connected with the nut (3) and the locking wheel (15).
9. The endoscopic hand wheel damping adjustment device according to claim 7, wherein:
the brake wheel (1) is arranged outside the upper end of the main shaft (9) through threads and is connected to the upper end face of the adjusting wheel (2), so that the adjusting wheel (2) is axially pressed and arranged on the main shaft (9).
10. The endoscopic hand wheel damping adjustment device according to claim 7, wherein:
the top surface of the locking seat (5) is provided with an elastic sheet (18), and the lower end of the locking plate (4) is connected with the elastic sheet (18) in a matched manner through a buckle, so that the locking seat (5) and the locking plate (4) are fixed in the circumferential direction in relative synchronization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310064566.XA CN116327085A (en) | 2023-02-06 | 2023-02-06 | Damping adjusting device for endoscope hand wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310064566.XA CN116327085A (en) | 2023-02-06 | 2023-02-06 | Damping adjusting device for endoscope hand wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116327085A true CN116327085A (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310064566.XA Pending CN116327085A (en) | 2023-02-06 | 2023-02-06 | Damping adjusting device for endoscope hand wheel |
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| Country | Link |
|---|---|
| CN (1) | CN116327085A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117257212A (en) * | 2023-11-22 | 2023-12-22 | 杭州鑫泽源医疗科技有限公司 | Snake bone |
| CN117426734A (en) * | 2023-12-20 | 2024-01-23 | 深圳市宏济医疗技术开发有限公司 | Bending opening and closing control mechanism and endoscope |
-
2023
- 2023-02-06 CN CN202310064566.XA patent/CN116327085A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117257212A (en) * | 2023-11-22 | 2023-12-22 | 杭州鑫泽源医疗科技有限公司 | Snake bone |
| CN117257212B (en) * | 2023-11-22 | 2024-02-09 | 杭州鑫泽源医疗科技有限公司 | Snake bone |
| CN117426734A (en) * | 2023-12-20 | 2024-01-23 | 深圳市宏济医疗技术开发有限公司 | Bending opening and closing control mechanism and endoscope |
| CN117426734B (en) * | 2023-12-20 | 2024-03-19 | 深圳市宏济医疗技术开发有限公司 | Bending opening and closing control mechanism and endoscope |
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