CN110279383A - A kind of endoscope handwheel retaining mechanism and endoscope - Google Patents
A kind of endoscope handwheel retaining mechanism and endoscope Download PDFInfo
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- CN110279383A CN110279383A CN201910591576.2A CN201910591576A CN110279383A CN 110279383 A CN110279383 A CN 110279383A CN 201910591576 A CN201910591576 A CN 201910591576A CN 110279383 A CN110279383 A CN 110279383A
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- endoscope
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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
- A61B1/00112—Connection or coupling means
- A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
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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
- A61B1/00131—Accessories for endoscopes
- A61B1/0014—Fastening element for attaching accessories to the outside of an endoscope, e.g. clips, clamps or bands
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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
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- Endoscopes (AREA)
Abstract
The invention discloses a kind of endoscope handwheel retaining mechanism and endoscope, endoscope handwheel retaining mechanism therein includes lock sleeve, limit plate, limited block；Lock sleeve is fixedly connected with the pedestal in the handwheel bent angle mechanism of endoscope；Limit plate is placed in above the limit sleeve, and can be rotated relative to the lock sleeve；Limited block is movably placed between the lock sleeve and the limit plate, in limit plate rotation, the limited block is driven by limit plate relative to the movement of lock sleeve inner circumferential in lock sleeve, and is being abutted locking lock sleeve with the lock sleeve inner circumferential and separated mobile handoff between unlock two state of lock sleeve with the lock sleeve.Scheme provided by the invention is greatly improved the reliability of locking, and curved part of endoscope is avoided to recoil to the state before locking.
Description
Technical field
The present invention relates to endoscopic techniques, and in particular to hand wheel rotating locks technology in endoscope.
Background technique
Endoscope is widely used in medical diagnostic field.Endoscope includes handwheel, rotates the bending for controlling bent angle by handwheel
Portion and handwheel retaining mechanism.In use, clinically demand by bending section be locked in a certain special angle taken pictures,
The operations such as lesion processing, it is therefore desirable to bending section is fixed on a certain special angle, handwheel retaining mechanism again fixes bending section
In the special angle, operator can unclamp handwheel and carry out other operations at this time.
Handwheel retaining mechanism used at present, in locking state, it sometimes appear that bending section recoils to state before locking
The case where, that is, there is the insecure situation of locking state.
Summary of the invention
For the problem of existing endoscope handwheel locking mechanism reliability difference, a kind of endoscope handwheel of high reliablity is needed
Locking scheme.
For this purpose, the purpose of the present invention is to provide a kind of endoscope handwheel retaining mechanism, can be used for endoscope handwheel into
The locking of row high reliability；On this basis, the present invention also provides a kind of endoscopes using the retaining mechanism.
In order to achieve the above object, endoscope handwheel retaining mechanism provided by the invention, comprising:
Lock sleeve, the lock sleeve are fixedly connected with the pedestal of handwheel in the handwheel bent angle mechanism of endoscope；
Limit plate, the limit plate is placed in above the limit sleeve, and can be rotated relative to the lock sleeve；
Limited block, the limited block are movably placed between the lock sleeve and the limit plate, in the limit
When plate rotates, the limited block driven by limit plate it is mobile relative to lock sleeve inner circumferential in lock sleeve, and with the locking
Set inner circumferential abuts locking lock sleeve and separates mobile handoff between unlock two state of lock sleeve with the lock sleeve.
Further, the bottom of the lock sleeve is provided with several slide-and-guide components towards lock sleeve inner ring.
Further, the inner circumferential of the lock sleeve is corrugated surface.
Further, the first side of the limited block, which is provided with, matches with the slide-and-guide component of the bottom of lock sleeve
Guidance set；Guide protrusions are arranged in second side, and the guide protrusions are matched with the limit plate.
Further, the limiting slot matched with guide protrusions on limited block, the limit are provided on the limit plate
Slot has radial displacement poor in the direction of extension.
Further, the limiting slot setting locking end and release end, the locking end is in limited block and lock sleeve inner circumferential
When abutting, cooperate with the guide protrusions on the limited block, limit the movement of limited block, so that in limited block holding and lock sleeve
Week abuts；The release end is matched when limited block and lock sleeve inner circumferential are detached from certain distance with guide protrusions on the limited block
It closes, limits the movement of limited block, so that limited block keeps being detached from lock sleeve inner circumferential.
Further, the retaining mechanism further include rotation awareness tool, the rotation awareness tool include perception disk with
Fixed disk, the perception disk are fixedly connected with the limit plate, and the perception disk can be rotated along the fixed disk periphery, and revolved
According to the mated condition between limited block and lock sleeve inner circumferential during turning, corresponding sensed activation is cooperatively formed with fixed disk.
Further, the perception disk is provided at least one set of elastic perception component, the fixed disk periphery setting and sense
Know the locating slot that elastic perception component matches on disk, corresponding setting perceives position, the perception disk and institute on the locating slot
When stating fixed disk combination, perceives locating slot in elastic perception component and fixed disk on disk and cooperate, and be in pre-compressed state；Institute
State elastic perception component with perception disk relative to fixed disk rotate reach fixed disk on locating slot perception position when, the elastic sensation
Know that component is released carry out sensed activation.
Further, the elastic perception component is constituted with spring positioning pearl and placement seat, the placement seat setting
On perception disk, and it is corresponding with the locating slot in fixed disk；The spring positioning pearl is placed in placement seat, and in fixed disk
Locating slot be engaged, the spring positioning pearl can move with locating slot of the rotation in fixed disk of perception disk, when described
When spring positioning pearl is in the perception position on locating slot, the spring positioning integument release, when the spring positioning pearl is in fixed
On the slot of position when non-perception position, the spring positioning integument compression.
In order to achieve the above object, a kind of endoscope provided by the invention is set in the handwheel bent angle mechanism of the endoscope
It is equipped with above-mentioned endoscope handwheel retaining mechanism.
Handwheel locking scheme provided by the invention locks the realization of endoscope handwheel by compressing the structure abutted, mentions significantly
The reliability of height locking can be avoided curved part of endoscope and recoil to the state before locking in specific application；Meanwhile this lock
The holding structure of locking state and unlocked state is also further arranged in tight scheme, thus further improve to endoscope handwheel into
The reliability of row locking.
Furthermore this handwheel locking scheme entirety composed structure is compact, more adds awareness tool, greatly improves the convenient of operation
Property and practicability.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the partial sectional view of endoscope handwheel retaining mechanism in present example 1；
Fig. 2 is endoscope handwheel retaining mechanism explosive view in present example 1；
Fig. 3 is the structural schematic diagram of lock sleeve in present example 1；
Fig. 4 is the structural schematic diagram of limit plate in present example 1；
Fig. 5 is the structural schematic diagram that awareness tool is rotated in present example 1；
Fig. 6 is the structural schematic diagram of fixed disk in present example 1；
Fig. 7 is the structural schematic diagram of endoscope handwheel in present example 2.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Embodiment one
Referring to Fig. 1 and Fig. 2 which shows the topology example for the high reliability endoscope handwheel retaining mechanism that this example provides
Figure.
As seen from the figure, this high reliability endoscope handwheel retaining mechanism 100 is in composed structure, mainly by lock sleeve 110,
Limit plate 120 and several limited blocks 130, which cooperate, to be constituted.
Wherein, lock sleeve 110 is whole is fixed in the handwheel pedestal of endoscope, with realize retaining mechanism 100 with it is interior
The cooperation of sight glass handwheel.
Limit plate 120 is placed in 110 top of lock sleeve, and limit plate 120 can be rotated relative to lock sleeve 110.
The limit for being placed between limit plate 120 and lock sleeve 110, and being rotated of several 130 Integral movables of limited block
Position plate 120 drives, to move along the synchronization of lock sleeve 110 relative to 110 inner circumferential of lock sleeve.Limit of several limited blocks 130 in rotation
Under position plate 120 drives, moved towards or backwards to 110 inner circumferential of lock sleeve along 110 bottom of lock sleeve is synchronous, realize with lock sleeve
110 inner circumferential, which abuts, to be compressed, to lock lock sleeve and separate mobile handoff between unlock two state of lock sleeve with lock sleeve 110,
Then it realizes and switches between locking endoscope hand wheel component and unlock endoscope hand wheel component.
The implementation process of the scheme of this locking is illustrated below in conjunction with attached drawing.
Referring to Fig. 1 and Fig. 2, the lock sleeve 110 in this example is fixedly connected with the pedestal of handwheel bent angle mechanism 200, so that
Lock sleeve 100 can be rotated with handwheel corner crimping machine structure 200 and be rotated.
Referring to Fig. 3, the lock sleeve 110 in the present embodiment generally has the hollow cylinder structure of bottom.The lock sleeve 110
Bottom offers through-hole 111, to cooperate with the main shaft 300 in endoscope.This lock sleeve 110 is set in main shaft by through-hole 111
On 300, and integrally it is embedded in endoscope handwheel bent angle mechanism 200, while handwheel is fixed on by sunk screw in its bottom
On the pedestal of bent angle mechanism, so that lock sleeve 110 and handwheel bent angle mechanism link, it then can be with handwheel corner crimping machine structure 200
It rotates and rotates.Therefore, when lock sleeve 110 is locked, handwheel bent angle mechanism is locked, so that bent angle behaviour can not be carried out
Make.
On this basis, this example radially extends direction in the bottom of lock sleeve 110 several slide-and-guide groups is arranged
Part 112.As an example, two radially symmetrical slidings are disposed radially in 110 upper bottom portion of lock sleeve in this example
Guide groove 112, the slide-and-guide slot 112 are preferably oblong hole.
The slide-and-guide slot 112 is matched with limited block 130, can hold on limited block 130 first guide protrusions 131 in it
Sliding, so that limited block 130 can be moved radially along the slide-and-guide slot 112.Limited block 130 is along lock sleeve 110
On slide-and-guide slot 112 in abut or separate, it can be achieved that being compressed with 110 inner circumferential of lock sleeve when moving radially.Work as limited block
130 compress when abutting with 110 inner circumferential of lock sleeve, it can be achieved that locking lock sleeve 110；When limited block 130 is separated with lock sleeve 110
When, it can be achieved that lock sleeve 110 unlock.
On this basis, in order to further increase the reliability that lock sleeve 110 is locked, this example is further in lock sleeve
Corrugated surface 113 is arranged in 110 inner circumferentials, thus can be contacted by the corrugated surface with an end face of corresponding limited block 130,
To achieve the purpose that reliably to lock lock sleeve 110, locking handwheel bent angle mechanism is then realized.
Several limited blocks 130 in this example are respectively in the movable slide-and-guide slot 112 being placed on lock sleeve 110,
And can be moved radially along slide-and-guide slot 112, realization carries out abutting locking or disengaging with the inner peripheral surface 113 of lock sleeve 110
Unlock.
Referring to Fig. 1, the specific structure of the limited block 130 in this example is configured to, convex in the first guiding of first side setting
131 are played, sets the second guide protrusions 132 on the second side.First guide protrusions 131 and the slide-and-guide slot on lock sleeve 110
112 cooperations, can be inserted into slide-and-guide slot 112, and carry out radial displacement along slide-and-guide slot 112；Second guide protrusions 132 can
When limit plate 120 assembles, it is inserted into the limiting slot 121 of limit plate 120, and moving movement can be carried out in limiting slot 121, from
And make entire limited block 130 is mobilizable to be placed between lock sleeve 110 and limit plate 120.
Further, the end face 133 opposite with lock sleeve inner circumferential 113 of limited block 130 is set arc surface by this example, leads to
The ripple inner peripheral surface 113 for crossing the arc surface and lock sleeve 110 contacts, to improve the reliability of locking lock sleeve 110, thus
Lock sleeve 110 is prevented to spring back rotation.
For the particular number of limited block 130, can depending on the quantity of the slide-and-guide slot 112 on lock sleeve 110, one
As settable 1 limited block 130 (as shown in Figure 2) in the next slide-and-guide slot 112 of situation, but it is not limited to this.
Limit plate 120 in this exemplary construction is arranged on main shaft 300 as locking driving assembly, and is located at locking
On set 110.The limit plate 120 can rotate on lock sleeve 110 relative to lock sleeve 110, and the synchronous driving in rotary course
The synchronous sliding groove 111 on lock sleeve 110 of all limited blocks 130 between limit plate 120 and lock sleeve 110 carries out
It moves radially, realizes and abut locking or be detached from unlocking with the inner circumferential of lock sleeve 110.In this example, setting table on main shaft 300
Rank, limit plate 120 and the step cooperate, therefore cannot move axially, can only pivoting so that limit plate 120 can be around
It is rotated axially with respect to lock sleeve 110, and limits the moving radially relative to lock sleeve 110 of limit plate 120, to guarantee to limit
The reliability that position plate 120 and lock sleeve 110 and lock sleeve 110 cooperate.
Referring to Fig. 1 and Fig. 4, the disc structure that the limit plate 120 in this example is generally matched with lock sleeve 110 should
Limit plate 120 is provided with the round sliding groove 124 matched with 110 port of lock sleeve on the end face opposite with lock sleeve 110,
Thus limit plate 120 can be matched by round sliding groove 124 thereon with 110 port of lock sleeve, to assign into lock sleeve 110
On port.
Furthermore limiting slot 121 is set, which is arc on this limit plate 120.It is provided on the limiting slot 121
Locking end 122 and release end 123 drive the second guide protrusions 132 on limited block 130 along limit when limit plate 120 rotates
Slot 121 moves between locking end 122 and release end 123, to drive limited block 130 along limiting slot 121 in 122 He of locking end
Regional movement between release end 123.
When the second guide protrusions 132 on limited block 130 are located in locking end 122, which will lead to second
Certain restriction is formed along the further movement of freedom degree of limiting slot 121 to protrusion 132.For the locking end 122 how to convex
131 mobile formation restriction is played, it can be by the shape and/or locking end 122 of setting locking end 122 relative to 121 side of limiting slot
Position etc. is realized, is herein not limited.Locking end 122 limits the mobile formation of the second guide protrusions 132
Degree depending on actual needs so can be by the shape and/or locking end 122 of setting locking end 122 relative to limit
121 orientation of slot etc. is adjusted.
On this basis, the limiting slot 121 in this example is formed with accordingly between locking end 122 and release end 123
Radial displacement is poor, so that the second guide protrusions 132 on limited block 130 be made to be able to drive limit when limiting slot 121 moves
Slide-and-guide slot 112 of the position block 130 on lock sleeve 110 is moved radially with respect to the inner circumferential of lock sleeve 110, i.e., transports rotation
Turn, which is changed to, to be moved radially；The radial displacement difference and limited block 130 are along slide-and-guide slot 112 towards 110 inner circumferential of lock sleeve simultaneously
Between removable stroke it is corresponding, when the second guide protrusions 132 on limited block 130 are located at the locking end on limiting slot 121
When 122, limited block 130 is just abutted with 110 inner circumferential 113 of lock sleeve compression；When the second guide protrusions 132 on limited block 130
When release end 123 on limiting slot 121, limited block 130 will be detached from 110 inner circumferential 113 of lock sleeve and unlock.
For the specific constructive form of the locking end 122 in this example on limiting slot 121, depending on actual needs,
As an example, the specific structure of the locking end 122 is the bending part for being formed in 121 one end of limiting slot, and such structure can be effective
Increase limited block 130 on the stress intensity that is detached from from locking end 122 of protrusion 131, to avoid the release lock in application
After tight knob 140, limited block 130 is retracted automatically, and locking is then caused to be failed.
What it is based on above scheme composition is in locking mechanism scheme, and limited block 130 is integrally located at lock sleeve 110 and limit plate
Between 120, when limit plate 120 rotates, limit plate 120 drives all limited blocks 130 to synchronize in lock sleeve 110 along lock sleeve
110 move radially, and move between abutting and separating with 110 inner circumferential of lock sleeve so that all limited blocks 130 can be synchronized.
And when limited block 130 is abutted with 110 inner circumferential of lock sleeve, lock sleeve 110 can not rotate, fixed with lock sleeve 110
The handwheel bent angle mechanism 200 of connection can not also rotate, and handwheel bent angle mechanism 200 is in locking state at this time, can not carry out bent angle
Operation；And when limited block 130 is separated with 110 inner circumferential of lock sleeve, lock sleeve 110 can rotate freely, fixed with lock sleeve 110
The handwheel bent angle mechanism 200 of connection is also freely rotatable, and handwheel bent angle mechanism 200 is in release conditions at this time, can freely into
The operation of row bent angle.
In addition, what needs to be explained here is that, slide-and-guide slot 112, limiting slot 121, limited block involved in the present embodiment
130 be it is one-to-one, can such as the use one embodiment described in, also can as shown in attached drawing using two, this example pair
This is without limiting.
For above scheme, this example gives some improvement projects, to improve the convenience for carrying out locking operation.
Referring to 1 and Fig. 2, this example also further increases locking knob 140 on the basis of above scheme, the locking rotating
Button 140 is fixedly connected with limit plate 120, when locking knob 140 rotates, is driven limit plate 120 to rotate, is then driven limited block
The 130 slide-and-guide slot 112 on lock sleeve 110 is moved radially, to abut or separate with lock sleeve 110.It thus can be big
The big convenience for improving operation locking mechanism.
Further, this example also adds rotation awareness tool 150 in this endoscope hand wheel locking structure, for convenient
User perceives whether locking is rotated in place.
Referring to Fig. 5 which shows rotate the topology example of awareness tool 150 in this example.As seen from the figure, this rotation perceives
Component 150 is set in fixed disk 152 including perception disk 151 and fixed disk 152, the perception disk 151, and can be along fixed disk 152
Periphery rotation, and matching in rotary course according between the mated condition between limited block and lock sleeve inner circumferential, with fixed disk 152
Conjunction forms corresponding sensed activation.
In specific placement, this perception disk 151 is fixedly connected with limit plate 120, as an example, can pass through lock between the two
Tight column 154 is attached, and specific structure is that in the locking hole 153 of one end insertion perception disk 151 of locking post 154, the other end is logical
Limit plate 120 can be driven while crossing the structures such as screw thread to be tightened on limit plate 120 (referring to fig. 2), therefore perceive the rotation of disk 151
Rotation.
This example corresponding elastic perception component of setting also on perception disk 151, for cooperating with fixed disk 152.
As seen from the figure, which is mainly made of spring positioning pearl 155, which can be pressed
Contracting or release, realize hereby based on the compression and release conditions of spring positioning pearl 155 and are elastically engaged with fixed disk 152, with
Realize state aware.
Further, also corresponding boss (placement seat) 156 is arranged on perception disk 151 in this example, for disposing spring
Positioning bead 155, while being matched with the link slot (not shown) being arranged on locking knob 140, it is achieved in locking knob
140 perceive the rotation of disk 151 to drive, and then limit plate 120 are driven to rotate.
In order to dispose spring positioning pearl 155, this example is arranged radially through hole 157 on boss 156, along boss 156, should
Through the corresponding spring positioning pearl 155 of insertion in through hole 157.
It should be noted that two boss are arranged in scheme shown in Fig. 5 on perception disk 151, convex platform 156a and under
Boss 156b, but this embodiment scheme is not limited to this, and a boss can also realize the connection with locking knob 140.One convex
Platform can be convex platform or lower convex platform shown in Fig. 5, can also be integrally formed convex platform and lower convex platform.
In addition, for the specific constructive form of convex platform 156a or lower convex platform 156b, depending on actual needs, as above
The structure type of boss 156a or lower convex platform 156b can connect groove shape according to locking knob 140 and be configured.
Furthermore it perceives 151 center of disk and corresponding centre bore is set, fixed disk 152 may pass through the centre bore and main shaft 300 is solid
Fixed connection.Such as can be fixedly connected between the two with nut, but it is not limited to this.
Corresponding locating slot 158 is arranged in the spring positioning pearl 155 that the periphery of fixed disk 152 corresponds on perception disk 151, makes
After fixed disk 152 assembles, the spring positioning pearl 155 perceived on disk 151 can be engaged with the locating slot 158, while can be with
Locating slot 158 of the rotation of disk 151 in fixed disk is perceived to move.
Referring to Fig. 6, the locating slot 158 in this example is respectively arranged with phase at the both ends of locating slot 158 in specific composition
The structure of the locking end 158a and release end 158b answered, locking end 158a and release end 158b are different from the master of locating slot 158
Body structure 158c, locking end and release end can accommodate the entrance of spring positioning pearl 155, and the main body 158c of locating slot 158 cannot
It enough accommodates spring positioning pearl 155 to enter, so that spring positioning pearl 155 can only be on the notch of 158 main body of locating slot along locating slot
158 main body notch directions are mobile.As a result, when spring positioning pearl 155 reach locking end or release end position when, can be released from
And be pressed into locating slot 158, and when spring positioning pearl 155 is located at 158 other positions of locating slot, spring positioning pearl 155 and fixed
The notch cooperation of position slot 158, can not be pressed into locating slot 158, then be compressed.
As an example, this locating slot 158 is specially the small strip groove shape in the big middle part in both ends；Most of not conduct at both ends
Locking end 158a and release end 158b, opening size are matched with the outer diameter of spring positioning pearl 155, can at least be accommodated corresponding
155 part of spring positioning pearl enters, so that spring positioning pearl 155 can be released；And the opening size of centre position 158c is less than
The outer diameter of spring positioning pearl 155 can not accommodate corresponding spring positioning pearl 155 and enter, so that spring positioning pearl 155 is compressed.
Locking end and release end on the locating slot 158 as a result, is then used as on rotation awareness tool and perceives position accordingly,
Locking perception position and release perception position, and specific setting position is respectively for the locking end 122 and release end on limit plate 120
123。
In this way, then can when spring positioning pearl 155 with perception disk 151 relative to fixed disk 152 during being rotated
The switching action between compression and release, so as to judge that locking knob 140 is according to the state change of spring positioning pearl 155
It is no to be rotated in place.
Thus the rotation awareness tool 150 constituted, can be by rotating clockwise lock when with 140 cooperating of locking knob
Tight knob 140, drives perception 151 clockwise movement of disk, the spring positioning pearl 155 being arranged thereon also phase therewith under compression
For fixed disk 152, the locating slot 158 in fixed disk 152 is rotated clockwise, when the locking end of rotation to locating slot 158,
Spring positioning pearl 155 can discharge the locking end for being pressed into locating slot 158, and spring positioning pearl 155 is from compressive state to release shape
The change in process of state, then can prompt operator to have rotated into position, that is, locking is completed.
Furthermore rotation locking knob 140 counterclockwise drives perception 151 counterclockwise movement of disk, then drives spring thereon
Positioning bead 155 is relative to fixed disk 152, and the locating slot 158 in fixed disk 152 rotates counterclockwise, so that spring positioning pearl 155
It is detached from and is compressed from the locking end of locating slot 158, and continue to rotate counterclockwise along locating slot 158 under compression, when
When rotating to the release end of locating slot 158, spring positioning pearl 155 can discharge to be pressed into the release end of locating slot 158, and spring is fixed
Change in process of the position pearl 155 from compressive state to release conditions, then prompt operator to have rotated into position, that is, unlock be completed, this
When can with rotation hand wheel bent angle mechanism 200 to endoscope carry out bent angle operation.
It should be noted that the present embodiment and attached drawing show knob locking clockwise, counterclockwise rotation unlock, this reality
Example is without being limited thereto, can be specifically arranged according to structure.
High reliability endoscope handwheel retaining mechanism provided in this embodiment can operate bending section in rotation hand wheel and be bent
To after a special angle, bending section is fixed on the special angle, operator can unclamp rotation hand wheel and carry out other operations；And
And in locking state, which ensures that bending section will not recoil to state before locking, improves reliable lock.
Embodiment two
This example Case-based Reasoning 1 provides the endoscope that handwheel retaining mechanism provides a kind of high reliability.
Referring to Fig. 7 and Fig. 2, the endoscope scheme that the present embodiment provides is mainly curved including handwheel retaining mechanism 100, handwheel
Angle mechanism 200 and main shaft 300.
Handwheel retaining mechanism 100 is the high reliability endoscope handwheel retaining mechanism provided in example 1, and specific structure exists
It is described in detail in embodiment 1, it will not be described here.
Handwheel bent angle mechanism 200 includes handwheel 210 and hand wheel shaft 220, the fixed company of the pedestal of hand wheel shaft 220 and handwheel 210
It connects.Bent angle handwheel 210 is for carrying out bent angle rotation process.Hand wheel shaft 220 is sheathed on outside main shaft 300, when bent angle handwheel 210 rotates
When, hand wheel shaft 220 can be rotated around main shaft 300, so that the bent angle draught line for driving hand wheel shaft 220 to connect is drawn
Movement.
Handwheel retaining mechanism 100 is integrally placed in the top of bent angle handwheel in handwheel bent angle mechanism, in assembly, by hand
Lock sleeve 110 in wheel retaining mechanism 100 penetrates main shaft 300 and is fixedly connected with the pedestal in handwheel bent angle mechanism, then locks
Set 110 is fixedly connected with main shaft 300, then limited block 130 is placed in the slide-and-guide slot 112 of lock sleeve 110.
Then, limit plate 120 is passed through main shaft 300 to be pressed on limited block 130, keeps the second guiding on limited block 130 convex
132 are played to be threaded through in the limiting slot 121 of limit plate 120.Then one end of locking post 154 is tightened on limit plate 200, then used
Fixed disk 152 is fixed on main shaft 300 by nut.
Then, spring positioning pearl 155 is mounted in the boss 156 being arranged on perception disk 151 by installation perception disk 151, then
151 sets of the disk other ends in locking post 154 will be perceived.
Finally locking knob 140 is connect with perception disk 151.
Thus in the endoscope scheme constituted, pass through the handwheel retaining mechanism 100 being built in handwheel bent angle mechanism, it is ensured that
State (specific operation process is referring to example 1) before locking will not be recoiled to after bending section is fixed, improves the reliable of endoscope bent angle
Property.Furthermore entire scenario-frame is compact, practical convenient for assembling production.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of endoscope handwheel retaining mechanism characterized by comprising
Lock sleeve, the lock sleeve are fixedly connected with the pedestal in the handwheel bent angle mechanism of endoscope；
Limit plate, the limit plate is placed in above the limit sleeve, and can be rotated relative to the lock sleeve；
Limited block, the limited block are movably placed between the lock sleeve and the limit plate, are revolved in the limit plate
When turning, the limited block driven by limit plate it is mobile relative to lock sleeve inner circumferential in lock sleeve, and with the lock sleeve in
It abuts locking lock sleeve week and separates mobile handoff between unlock two state of lock sleeve with the lock sleeve.
2. endoscope handwheel retaining mechanism according to claim 1, which is characterized in that the bottom of the lock sleeve is provided with
Several slide-and-guide components towards lock sleeve inner ring.
3. endoscope handwheel retaining mechanism according to claim 1 or 2, which is characterized in that the inner circumferential of the lock sleeve is
Corrugated surface.
4. endoscope handwheel retaining mechanism according to claim 2, which is characterized in that the first side of the limited block is arranged
There is the guidance set matched with the slide-and-guide component of the bottom of lock sleeve；Guide protrusions are arranged in second side, and the guiding is convex
It rises and is matched with the limit plate.
5. endoscope handwheel retaining mechanism according to claim 4, which is characterized in that be provided with and limit on the limit plate
The limiting slot that guide protrusions match on the block of position, the limiting slot have radial displacement poor in the direction of extension.
6. endoscope handwheel retaining mechanism according to claim 5, which is characterized in that limiting slot setting locking end and
Release end, the locking end cooperate when limited block is abutted with lock sleeve inner circumferential with the guide protrusions on the limited block, limitation
The movement of limited block, so that limited block holding is abutted with lock sleeve inner circumferential；The release end is de- in limited block and lock sleeve inner circumferential
When with a certain distance from, cooperate with guide protrusions on the limited block, limit the movement of limited block, so that limited block is kept and locking
Inner circumferential is covered to be detached from.
7. endoscope handwheel retaining mechanism according to claim 1, which is characterized in that the retaining mechanism further includes rotation
Awareness tool, the rotation awareness tool include that perception disk and fixed disk, the perception disk are fixedly connected with the limit plate, institute
State perception disk can be rotated along the fixed disk periphery, and in rotary course according to the cooperation between limited block and lock sleeve inner circumferential
State cooperatively forms corresponding sensed activation with fixed disk.
8. endoscope handwheel retaining mechanism according to claim 7, which is characterized in that the perception disk is provided at least one
The elastic perception component of group, the locating slot that the fixed disk periphery setting is matched with elastic perception component on perception disk are described fixed
Corresponding setting perceives position on the slot of position, when the perception disk is combined with the fixed disk, elastic perception component on perception disk and
Locating slot cooperates in fixed disk, and is in pre-compressed state；The elasticity perception component is rotated with perception disk relative to fixed disk
When reaching the perception position of locating slot in fixed disk, the elasticity perception component is released carry out sensed activation.
9. endoscope handwheel retaining mechanism according to claim 8, which is characterized in that the elasticity perception component is by spring
Positioning bead and placement seat cooperation are constituted, and the placement seat is arranged on perception disk, and corresponding with the locating slot in fixed disk；It is described
Spring positioning pearl is placed in placement seat, and is engaged with the locating slot in fixed disk, and the spring positioning pearl can be with perception
Locating slot of the rotation of disk in fixed disk moves, when the spring positioning pearl is in the perception position on locating slot, the bullet
Spring positioning bead is released, when the spring positioning pearl is in non-perception position on locating slot, the spring positioning integument compression.
10. a kind of endoscope, which is characterized in that be provided in claim 1-9 and appoint in the handwheel bent angle mechanism of the endoscope
Endoscope handwheel retaining mechanism described in one.
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| CN201910591576.2A CN110279383A (en) | 2019-07-02 | 2019-07-02 | A kind of endoscope handwheel retaining mechanism and endoscope |
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