CN210055942U - Medical endoscope imaging switching bayonet device - Google Patents
Medical endoscope imaging switching bayonet device Download PDFInfo
- Publication number
- CN210055942U CN210055942U CN201920207911.XU CN201920207911U CN210055942U CN 210055942 U CN210055942 U CN 210055942U CN 201920207911 U CN201920207911 U CN 201920207911U CN 210055942 U CN210055942 U CN 210055942U
- Authority
- CN
- China
- Prior art keywords
- fixed seat
- driving shell
- tension spring
- hole
- arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Endoscopes (AREA)
Abstract
The utility model relates to a medical endoscope imaging switching bayonet device, which comprises a driving shell, a fixed seat, a plurality of clamping claws and a tension spring; the driving shell and the fixed seat are both in a revolving body structure, the fixed seat is axially movably embedded in the driving shell, and the clamping claw is movably clamped between the fixed seat and the driving shell; wherein: the circumferential surface of the fixed seat is provided with a ring groove, the inner end surface of the fixed seat is provided with two to three notches communicated with the ring groove and at least three arc-shaped grooves; the inner circumferential surface of the driving shell is convexly provided with a convex block corresponding to the notch, and the convex block can axially enter the notch and can rotate along the ring groove to drive the clamping claw to open; the tension spring is arranged between the driving shell and the fixed seat, the clamping claws are kept to be synchronously tightened through tension spring force, and the non-return mechanism is arranged at the notch to prevent the driving shell from being separated. The beneficial effects of the utility model are that, part is few, light in weight, assembly are easy, easy operation's characteristics.
Description
The technical field is as follows:
the utility model belongs to the optical accessories field, in particular to medical endoscope formation of image switching bayonet socket device.
Background art:
among the various types of conventional medical endoscope adapter bayonets, the three-jaw clamping type medical endoscope hard lens adapter bayonets have the advantages of simplicity in operation, reliability in operation and convenience in maintenance, and are most widely applied, but the conventional bayonet is generally free of a preset positioning function when three jaws are opened and a trigger locking function after an endoscope is installed in the bayonet, and further has the problems of more parts, need of threaded connection or screw fasteners, complex structure and heavy weight, and the problems of inconvenience in operation and use, more production processes and high production cost are caused by the factors. How to improve the prior art not enough, provide a scheme that is more favorable to aseptic technique, become the object of the utility model discloses research.
The invention content is as follows:
the utility model aims at designing a medical endoscope imaging switching bayonet device, wherein the driving shell and the fixed seat adopt a lug and gap assembly structure, a non-return mechanism is arranged at the gap, and a tension spring keeps a clamping jaw in a clamping state; and the secondary purpose is to drive the shell to drive the clamping jaws to be opened to the maximum degree, so that the clamping jaws have a pre-positioning function.
The utility model discloses technical scheme realizes like this: a medical endoscope imaging switching bayonet device comprises a driving shell, a fixed seat, a plurality of clamping claws and a tension spring; the driving shell and the fixed seat are both of a revolving body structure with a through hole in the center, and the through hole on one side of the outer end face of the fixed seat is small in caliber and is provided with an internal thread matched with the camera lens; the fixed seat is axially and movably embedded in the driving shell, and the clamping claw is movably clamped between the inner end surface of the fixed seat and the bottom of the through hole of the driving shell; the method is characterized in that: the circumferential surface of the fixed seat is provided with a ring groove, the inner end surface of the fixed seat is provided with two to three notches communicated with the ring groove and at least three arc-shaped grooves; the inner circumferential surface of the driving shell is convexly provided with convex blocks the number of which is not more than that of the notches, the convex blocks can axially enter the notches and can rotate along the ring groove, and the bottom of the through hole is uniformly provided with at least three shaft holes on the same circumference; two ends of the clamping jaw are respectively provided with a convex shaft, the two convex shafts are separately arranged on two end faces of the clamping jaw, one convex shaft is inserted into the shaft hole of the driving shell, the other convex shaft is embedded into the arc-shaped groove on the inner end face of the fixed seat in a sliding manner, and one end of the driving shell, which rotates the clamping jaw, can synchronously open or tighten along the track of the arc-shaped groove; the tension spring is arranged in the annular groove of the fixed seat, one end of the tension spring is hung on the hanging column or the hanging hole in the annular groove, the other end of the tension spring is hung on a lug or an inner surface hanging hole of the driving shell, and the synchronous tightening trend of the plurality of clamping claws is always kept; the annular groove of the fixing seat is also provided with a check mechanism, and the check mechanism allows the lug to enter from the notch and rotate for an angle along the tension direction of the tension spring, so that the lug cannot retreat and align with the notch.
The non-return mechanism is a first reed which is positioned in the annular groove of the fixed seat through a pin, and the end part points to the tension direction of the tension spring.
The non-return mechanism is a wave reed which is fixedly riveted in the annular groove of the fixing seat, and the wave crest part is positioned at one side of the notch towards the tension direction of the tension spring.
The arc groove on the end surface of the fixed seat comprises an arc section and a straight section, the arc section is concentric with the fixed seat, the straight section is arranged along the same direction, and the arc section deviates to the side of the circle center, so that the plurality of clamping claws move to the straight section and synchronously contract inwards.
A pre-positioning mechanism is further arranged between the driving shell and the fixed seat, the pre-positioning mechanism comprises a sliding seat and a ball, the sliding seat is embedded between the two convex blocks of the driving shell, a second reed obliquely extends towards the bottom of the circular groove in the tension direction of the tension spring, and the end part of the second reed can abut against a bulge arranged at the bottom of the circular groove to form a positioning structure; a spherical hole is formed at the bottom of the ring groove at one side of the protrusion facing the second reed; the ball is movably embedded in the spherical hole, part of the ball is exposed out of the central through hole and can be touched by an inserted endoscope observation cylinder, part of the ball is also exposed out of the annular groove and can touch the second spring plate, and the second spring plate is jacked up by the aid of the lifted ball to be separated from the interference constraint of the protrusions.
The utility model has the advantages of few parts, light weight, easy assembly and simple operation; the driving shell and the fixed seat can be assembled by hands, and the driving shell and the fixed seat are provided with a non-return mechanism so as to avoid falling off when in use; the gripper jaw is taut by the extension spring, remains the clamping state throughout, and the prepositioning mechanism that sets up can keep the gripper jaw again in the position that opens, operates when convenient switching, and the operator can hold the bayonet socket in one hand, holds the endoscope in one hand, puts into the bayonet socket to the endoscope, can trigger prepositioning mechanism, and the gripper jaw contracts in step, locks the endoscope on the bayonet socket, and aseptic technique becomes probably.
Description of the drawings:
the present invention will be further explained with reference to the following specific drawings:
FIG. 1 is a schematic view of a medical endoscope imaging switching bayonet device
FIG. 2 is a side view of a medical endoscope imaging adaptor bayonet device
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2
FIG. 4 is a schematic cross-sectional view taken along line B-B in FIG. 2
FIG. 5 is an exploded view of a medical endoscope imaging adapter bayonet device
FIG. 6 is an exploded view of a medical endoscope imaging adapter bayonet device
FIG. 7 is a cross-sectional view of a medical endoscope imaging adapter bayonet device
Wherein
1-drive shell 11-lug 12-shaft hole 2-fixing seat
21-ring groove 211-hanging column 212-bulge 22-notch
23-arc groove 231-arc section 232-straight section 24-internal thread
25-spherical hole 3-gripper jaw 31-protruding shaft 4-tension spring
5-first reed 51-wave reed 6-sliding seat 61-second reed
7-ball
The specific implementation mode is as follows:
referring to fig. 1 to 6, the medical endoscope imaging switching bayonet device includes a driving housing 1, a fixed seat 2, a plurality of clamping claws 3, a tension spring 4, a first spring 5, a sliding seat 6 and a ball 7; the driving shell 1 and the fixed seat 2 are both of a revolving body structure with a through hole in the center, the fixed seat 2 is axially movably embedded in the driving shell 1, the clamping claw 3 is movably clamped between the inner end surface of the fixed seat and the bottom of the through hole of the driving shell, and the driving shell 1 drives the clamping claw 3 to open so as to clamp the endoscope; and the bore diameter of the perforation on one side of the outer end face of the fixed seat 2 is small and is provided with an internal thread 24 matched with the camera lens so as to be directly screwed at the lens end of the camera equipment.
A ring groove 21 is arranged on the circumferential surface of the fixed seat 2, two to three notches 22 communicated with the ring groove and at least three arc-shaped grooves 23 are arranged on the inner end surface of the fixed seat; in this embodiment, the three notches 22 and the three arc-shaped grooves 23 are uniformly distributed on the inner end surface of the fixing seat, the notches 22 provide for assembling the driving shell 1, and the arc-shaped grooves 23 are used for restricting the moving track of the clamping claws 3. The arc-shaped groove 23 includes an arc section 231 and a straight section 232, the arc section 231 is concentric with the fixing base 2, the straight section 232 is out along the same direction and is deviated to one side of the center of the circle, so that one end of the three clamping claws 3 is parallel to the straight section 232 and is contracted inwards synchronously, and when the clamping claws 3 are positioned at the arc section 231, the clamping claws 3 are expanded to the maximum for inserting the endoscope.
The inner circumferential surface of the driving shell 1 is convexly provided with a plurality of convex blocks 11 which are not more than the notches 22, in the embodiment, three convex blocks are also uniformly distributed on the circumference and correspond to the notches; only two notches 22 can be arranged, but the notches 22 can be axially arranged and can rotate along the ring groove 21, and at least three shaft holes 12 are uniformly arranged on the same circumference at the bottom of the through hole, the number of the shaft holes corresponds to that of the clamping claws 3, and the shaft holes are used for positioning and driving the clamping claws.
The clamping claws 3 are arc-shaped, three in the example, and form three-point clamping when tightened; two ends of the clamping jaw 3 are respectively provided with a protruding shaft 31, the two protruding shafts 31 are separately arranged on two end faces of the clamping jaw, one protruding shaft 31 is inserted into the shaft hole 12 of the driving shell, the other protruding shaft 31 is embedded into the arc-shaped groove 23 on the inner end face of the fixed seat in a sliding manner, and one end of the driving shell 1, which rotates the clamping jaw 3, can synchronously open or tighten along the track of the arc-shaped groove 23.
The tension spring 4 is arranged in the annular groove 21 of the fixed seat, one end of the tension spring is hung on the hanging column 211 or the hanging hole in the annular groove 21, the other end of the tension spring is hung on a lug 11 or an inner surface hanging hole of the driving shell, and the synchronous tightening trend of the three clamping claws 3 is always kept, namely the clamping force is kept by the tension spring force of the tension spring 4.
The annular groove 21 of the fixing seat is further provided with a check mechanism, and the check mechanism allows the projection 11 to enter from the notch 22 and rotate for an angle along the pulling force direction of the tension spring 4, so that the projection 11 cannot be retracted to align with the notch 22, that is, the possibility of operating the driving shell 1 after assembly and aligning the projection 11 and the notch 22 again is prevented, and the separation of the driving shell 1 and the fixing seat 2 in the using process is also avoided. The check mechanism has the following two preferable structures:
as shown in fig. 3 and 4, the check mechanism is a first spring 5, the first spring 5 is positioned in the annular groove 21 of the fixing seat through a pin, and the end of the first spring points to the pulling direction of the tension spring 4, such as the direction of an arrow in the figure.
Secondly, as shown in fig. 7, the check mechanism is a wave spring 51, the wave spring 51 is riveted in the ring groove 21 of the fixing seat, the peak part is located at one side of the notch 22 towards the tension direction of the tension spring, the peak can also be of a one-way saw tooth structure, and the bump 11 can be limited from retreating to the notch 22 again.
Furthermore, a pre-positioning mechanism is arranged between the driving shell 1 and the fixed seat 2, and can pre-position the maximum opening position of the clamping claw 3, so that the switching bayonet can be conveniently held by hand, and the driving shell does not need to be rotated by hands to keep the clamping claw open. The pre-positioning mechanism comprises a sliding seat 6 and a ball 7, the sliding seat 6 is embedded between the two convex blocks 11 of the driving shell, a second spring leaf 61 is obliquely arranged towards the bottom of the ring groove 21 in the direction of the tension spring 4, and the end part of the second spring leaf 61 can be abutted against a bulge 212 arranged at the bottom of the ring groove to form a positioning structure; a spherical hole 25 is formed at the bottom of the ring groove at one side of the protrusion 212 facing the second reed; the ball 7 is movably inserted in the spherical hole 25, the ball 7 is partially exposed in the central through hole and can be touched by an inserted endoscope observation tube, the ball 7 is partially exposed in the annular groove and can touch the second spring leaf 61, and the second spring leaf 61 is jacked up by the raised ball 7 and is separated from the interference constraint of the protrusion 212.
During operation, the switching bayonet is firstly screwed to the end of the camera lens through the internal thread 24 on the fixed seat 2, the shell 1 is driven to rotate to enable the clamping claw 3 to be opened to the maximum and positioned by the prepositioning mechanism, the endoscope ytterbium is inserted, the entered endoscope touches the ball 7 and forces the ball to rise to jack the second spring 61, the ball is separated from the constraint of the protrusion 212, and under the action of the tension spring 4, the shell 1 is driven to rotate rapidly and drive the clamping claw 3 to tighten and clamp the endoscope, so that the whole switching action is completed.
Claims (5)
1. A medical endoscope imaging switching bayonet device comprises a driving shell, a fixed seat, a plurality of clamping claws and a tension spring; the driving shell and the fixed seat are both of a revolving body structure with a through hole in the center, and the through hole on one side of the outer end face of the fixed seat is small in caliber and is provided with an internal thread matched with the camera lens; the fixed seat is axially and movably embedded in the driving shell, and the clamping claw is movably clamped between the inner end surface of the fixed seat and the bottom of the through hole of the driving shell; the method is characterized in that: the circumferential surface of the fixed seat is provided with a ring groove, the inner end surface of the fixed seat is provided with two to three notches communicated with the ring groove and at least three arc-shaped grooves; the inner circumferential surface of the driving shell is convexly provided with convex blocks the number of which is not more than that of the notches, the convex blocks can axially enter the notches and can rotate along the ring groove, and the bottom of the through hole is uniformly provided with at least three shaft holes on the same circumference; two ends of the clamping jaw are respectively provided with a convex shaft, the two convex shafts are separately arranged on two end faces of the clamping jaw, one convex shaft is inserted into the shaft hole of the driving shell, the other convex shaft is embedded into the arc-shaped groove on the inner end face of the fixed seat in a sliding manner, and one end of the driving shell, which rotates the clamping jaw, can synchronously open or tighten along the track of the arc-shaped groove; the tension spring is arranged in the annular groove of the fixed seat, one end of the tension spring is hung on the hanging column or the hanging hole in the annular groove, the other end of the tension spring is hung on a lug or an inner surface hanging hole of the driving shell, and the synchronous tightening trend of the plurality of clamping claws is always kept; the annular groove of the fixing seat is also provided with a check mechanism, and the check mechanism allows the lug to enter from the notch and rotate for an angle along the tension direction of the tension spring, so that the lug cannot retreat and align with the notch.
2. The medical endoscope imaging adapter bayonet device of claim 1, wherein: the non-return mechanism is a first reed which is positioned in the annular groove of the fixed seat through a pin, and the end part points to the tension direction of the tension spring.
3. The medical endoscope imaging adapter bayonet device of claim 1, wherein: the non-return mechanism is a wave reed which is fixedly riveted in the annular groove of the fixing seat, and the wave crest part is positioned at one side of the gap towards the tension direction of the tension spring.
4. The medical endoscope imaging adapter bayonet device of claim 1, wherein: the arc groove on the end face of the fixed seat comprises an arc section and a straight section, the arc section is concentric with the fixed seat, the straight section is arranged along the same direction, and the arc section deviates to the side of the circle center, so that the plurality of clamping claws move to the straight section and synchronously contract inwards.
5. The medical endoscope imaging adapter bayonet device of claim 1, wherein: a pre-positioning mechanism is also arranged between the driving shell and the fixed seat, the pre-positioning mechanism comprises a sliding seat and a ball, the sliding seat is embedded between two convex blocks of the driving shell, a second reed obliquely extends towards the bottom of the circular groove towards the tension direction of the tension spring, and the end part of the second reed can abut against a bulge arranged at the bottom of the circular groove to form a positioning structure; a spherical hole is formed at the bottom of the ring groove at one side of the protrusion facing the second reed; the ball is movably embedded in the spherical hole, part of the ball is exposed out of the central through hole and can be touched by an inserted endoscope observation cylinder, part of the ball is also exposed out of the annular groove and can touch the second spring plate, and the second spring plate is jacked up by the aid of the lifted ball to be separated from the interference constraint of the protrusions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920207911.XU CN210055942U (en) | 2019-02-19 | 2019-02-19 | Medical endoscope imaging switching bayonet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920207911.XU CN210055942U (en) | 2019-02-19 | 2019-02-19 | Medical endoscope imaging switching bayonet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210055942U true CN210055942U (en) | 2020-02-14 |
Family
ID=69432566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920207911.XU Active CN210055942U (en) | 2019-02-19 | 2019-02-19 | Medical endoscope imaging switching bayonet device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210055942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111568339A (en) * | 2019-02-19 | 2020-08-25 | 福建省光学技术研究所 | Medical endoscope imaging switching bayonet device |
-
2019
- 2019-02-19 CN CN201920207911.XU patent/CN210055942U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111568339A (en) * | 2019-02-19 | 2020-08-25 | 福建省光学技术研究所 | Medical endoscope imaging switching bayonet device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210364284A1 (en) | quick tire self-centering clamp | |
| US10865924B2 (en) | Quick-disassembly nipple connector structure | |
| US8671533B2 (en) | Gripper device for mounting rubber elastic rings and finger for a gripper device of this type | |
| WO2022089385A1 (en) | Hub clamping apparatus | |
| US20090146356A1 (en) | Swing Clamp Apparatus | |
| WO2017128813A1 (en) | Collet chuck | |
| CN109551427B (en) | Dismounting device for threaded connection end cover | |
| CN210055942U (en) | Medical endoscope imaging switching bayonet device | |
| WO2018103177A1 (en) | Gear self-tightening drill chuck and flat jaw self-tightening drill chuck | |
| CN109365849B (en) | Switching device, drill chuck and method for bi-directionally rotating drill chuck | |
| CN111568339A (en) | Medical endoscope imaging switching bayonet device | |
| WO2008092300A1 (en) | A locking drill chuck | |
| EP3904004B1 (en) | Adjustable torque clamping fixture | |
| CN209935922U (en) | Chuck of drilling machine support and drilling machine support | |
| CN2832376Y (en) | Self-locking hand-screwed drill chuck | |
| CN210921165U (en) | Illumination lamp with adjustable illumination angle | |
| CN112388561B (en) | Sealing element assembling and disassembling tool | |
| CN109870365B (en) | Locking mechanism, water pressure testing device, locking method and water pressure testing method | |
| CN209887051U (en) | Eccentric bolt locking device | |
| CN217366131U (en) | Universal adjusting instrument clamping device | |
| CN214686349U (en) | Flange fastening tool | |
| CN218613774U (en) | Double-end stud sleeve | |
| US20070228674A1 (en) | Chuck assembly | |
| CN213888982U (en) | Hub clamping device | |
| CN220922248U (en) | Adjustable limiting assembly device for elastic retainer ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |