CN113189715A - Knob type unlocking structure for OCT and connecting device comprising knob type unlocking structure - Google Patents
Knob type unlocking structure for OCT and connecting device comprising knob type unlocking structure Download PDFInfo
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- CN113189715A CN113189715A CN202110474371.3A CN202110474371A CN113189715A CN 113189715 A CN113189715 A CN 113189715A CN 202110474371 A CN202110474371 A CN 202110474371A CN 113189715 A CN113189715 A CN 113189715A
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- 239000013307 optical fiber Substances 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims description 14
- 239000000523 sample Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0066—Optical coherence imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0073—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by tomography, i.e. reconstruction of 3D images from 2D projections
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Abstract
The invention discloses a knob type unlocking structure for OCT and a connecting device comprising the knob type unlocking structure, comprising a mounting seat and a knob type adjusting mechanism; the mounting seat is provided with a through hole, a transverse guide groove and a longitudinal limiting groove, the transverse guide groove is communicated with the longitudinal limiting groove, and the transverse guide groove and the longitudinal limiting groove are respectively communicated with the through hole; the knob type adjusting mechanism comprises a thimble, a limiting rod, a return spring and a knob; one part of the ejector pin is inserted into the through hole of the mounting seat, one end of the ejector pin forms an abutting part, and the other end of the ejector pin forms a knob connecting part; one end of the limiting rod is fixedly connected with the thimble, and the other end of the limiting rod is rotatably arranged in the longitudinal limiting groove; the reset spring is arranged in the through hole, and the reset spring is sleeved on the thimble so as to be suitable for applying reset elasticity to the thimble; the knob is fixedly arranged on the knob connecting part of the thimble. The invention realizes unlocking by pushing the elastic sheet of the LC optical fiber connector through the knob type adjusting mechanism, and has the characteristics of convenient operation, small occupied space and good stability.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a knob type unlocking structure for OCT and a connecting device comprising the knob type unlocking structure.
Background
Optical interference Tomography (OCT) is an Optical imaging technique based on the principle of interference of weak coherent light, which obtains a two-dimensional or three-dimensional structure of biological tissue by detecting back-reflected or scattered signals of different tissues to incident weak coherent light.
The OCT optical scanning probe obtains images through internal optical fiber guide wire rotation scanning, and the probe axial motion can scan layer by layer while the optical fiber guide wire rotates, so that richer image information can be obtained. The LC type connector is developed by research of Bell research institute, is made by a modular jack (RJ) latching mechanism with convenient operation, has compact volume and is widely applied to the field of optical fiber communication. One end of the probe in the prior art is in optical communication connection through the LC optical fiber connector, and the probe obtains images through the rotary scanning of the internal optical fiber guide wire, so the LC optical fiber connector needs to be arranged in a rotating shaft.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the invention is to provide a knob type unlocking structure for OCT, which realizes unlocking by pushing open the elastic sheet of the LC optical fiber joint through a knob type adjusting mechanism, and has the characteristics of convenient operation, small occupied space and good stability.
It is another object of the present invention to provide a connecting device including the above knob type unlocking structure.
One of the purposes of the invention is realized by adopting the following technical scheme:
a knob type unlocking structure for OCT, comprising:
the mounting seat is provided with a through hole along the transverse direction; the mounting seat is provided with a transverse guide groove and a longitudinal limiting groove, the transverse guide groove and the longitudinal limiting groove are communicated with each other, and the transverse guide groove and the longitudinal limiting groove are respectively communicated with the through hole;
the knob type adjusting mechanism comprises a thimble, a limiting rod, a return spring and a knob; one end of the thimble penetrates through the through hole and extends out of one side of the mounting seat to form a butting part, and the other end of the thimble penetrates through the through hole and extends out of the other side of the mounting seat to form a knob connecting part; one end of the limiting rod is fixedly connected with the thimble, and the other end of the limiting rod is rotatably arranged in the longitudinal limiting groove; the reset spring is arranged in the through hole, and the reset spring is sleeved on the ejector pin so as to be suitable for applying reset elasticity to the ejector pin; the knob is fixedly installed on the knob connecting portion of the ejector pin.
In an alternative embodiment, the transverse guide grooves include a first transverse guide groove and a second transverse guide groove symmetrically arranged on both sides of the through hole; the longitudinal limiting groove comprises a first longitudinal limiting groove and a second longitudinal limiting groove, the first longitudinal limiting groove vertically extends downwards along one end of the first transverse guide groove, and the second longitudinal limiting groove vertically extends upwards along one end of the second transverse guide groove; the joint of the first transverse guide groove and the first longitudinal limiting groove is an arc transition surface, and the joint of the second transverse guide groove and the second longitudinal limiting groove is an arc transition surface; the bottom surface of the first longitudinal limiting groove is provided with an inclined first rotation stopping inclined surface, the top surface of the second longitudinal limiting groove is provided with an inclined second rotation stopping inclined surface, and the first rotation stopping inclined surface and the second rotation stopping inclined surface are parallel to each other;
the limiting rod comprises a first limiting rod and a second limiting rod which are symmetrically arranged on two sides of the thimble, one end of the first limiting rod is fixedly connected with the thimble, and the other end of the first limiting rod is rotatably arranged in the first longitudinal limiting groove; one end of the second limiting rod is fixedly connected with the thimble, and the other end of the second limiting rod is rotatably arranged in the second longitudinal limiting groove.
In an optional embodiment, the mounting plate is further provided with a mounting hole communicated with the through hole; the mounting plate is fixedly connected with the side surface of the mounting seat adjacent to the longitudinal limiting groove in a detachable mode; the abutting part of the thimble penetrates through the mounting hole of the mounting plate and is inserted in the through hole of the mounting seat.
In an alternative embodiment, the mounting plate and the mounting seat are detachably and fixedly connected through screws.
In an optional embodiment, the retractable thimble further includes an adjustable limiting member, the adjustable limiting member is adjustably mounted on the thimble, and the adjustable limiting member is located between the mounting plate and the knob.
In an optional embodiment, the adjustable limiting member includes a limiting block having an axial through hole and a locking screw, and a threaded hole is radially disposed on the limiting block; the limiting block is sleeved on the ejector pin through the axial through hole, and the locking screw is in threaded connection with the threaded hole and fastens the limiting block on the ejector pin.
In an optional embodiment, the through holes comprise a first through hole and a second through hole which are communicated from left to right, and the diameter of the first through hole is smaller than that of the second through hole;
the thimble comprises a butting part, a guide part, an installation part and a knob connection part which are connected in sequence from left to right; the diameters of the abutting part, the guide part and the mounting part are gradually increased; the diameter of the guide part is smaller than that of the first through hole; one part of the knob connecting part and the mounting part extends out of the other side of the mounting seat through the second through hole, the other part of the mounting part passes through the mounting hole of the mounting plate and is inserted into the second through hole of the mounting seat, one part of the guide part is positioned in the first through hole, the other part of the guide part is positioned in the second through hole, and one part of the abutting part extends out of one side of the mounting seat through the first through hole;
one end of the reset spring is abutted against the end face of the mounting part, and the other end of the reset spring is abutted against the end face of the second through hole.
In an optional embodiment, the knob and the knob connecting part are detachably and fixedly connected in a clamping manner.
The second purpose of the invention is realized by adopting the following technical scheme:
the connection device is characterized by comprising a knob type unlocking structure which is one of the objects of the invention.
In an alternative embodiment, the connection device further comprises:
the connecting base comprises a bottom plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are symmetrically arranged on two sides of the bottom plate;
the hollow shaft is provided with an axial through hole, and one end of the hollow shaft is rotatably arranged on the first side plate; the other end of the hollow shaft is provided with a first accommodating groove;
the torque connecting shaft piece is provided with an axial through hole, and one end of the torque connecting shaft piece is rotatably inserted into the second side plate; the other end of the torque connecting shaft piece is provided with a second accommodating groove;
the optical fiber connector comprises a connecting sleeve, a first LC optical fiber connector used for being connected with the optical fiber at the driving end and a second LC optical fiber connector used for being connected with the optical fiber at the probe end; one end of the connecting sleeve is fixedly arranged in the first accommodating groove, and the other end of the connecting sleeve is slidably inserted in the second accommodating groove; the connecting sleeve is fixedly connected with the hollow shaft; one wiring port of the first LC optical fiber connector and one wiring port of the second LC optical fiber connector are connected and then are jointly installed in the connecting sleeve, wherein the other wiring port of the first LC optical fiber connector is communicated with the axial through hole of the hollow shaft, the other wiring port of the second LC optical fiber connector is communicated with the axial through hole of the torque connecting shaft piece, and the clamping part of the elastic sheet of the second LC optical fiber connector extends out of the connecting sleeve and is clamped with the connecting sleeve;
the sleeve is sleeved on the outer walls of the hollow shaft and the torque connecting shaft piece, one end of the sleeve is fixedly connected with the hollow shaft through a fastening screw, the other end of the sleeve is provided with a limiting pin which can extend into a second accommodating groove of the torque connecting shaft piece, and a guide hole is formed in the position, corresponding to the clamping part of the elastic piece of the second LC optical fiber connector, of the sleeve;
the knob type unlocking structure is fixedly arranged on the bottom plate, a thimble of the knob type unlocking structure is over against the guide hole of the sleeve, and when the thimble moves to a preset position, the abutting part of the thimble can penetrate through the guide hole of the sleeve to be in contact with the clamping part of the elastic sheet of the second LC optical fiber connector and apply pressure.
Compared with the prior art, the invention has the beneficial effects that:
1. the knob type unlocking structure comprises a mounting seat and a knob type adjusting mechanism, and the working process comprises the following steps: a rotation step: the knob is rotated, the knob drives the thimble to rotate, and the thimble drives the limiting rod to rotate, so that the limiting rod moves into the guide groove from the longitudinal limiting groove; unlocking: then the knob is pressed down towards the direction close to the through hole, the thimble moves in the through hole and the limiting rod moves in the guide groove, the abutting part of the thimble ejects out towards the direction far away from the through hole, and when the thimble moves to the preset position, the abutting part can contact with the elastic sheet of the LC optical fiber connector and apply pressure, so that the elastic sheet of the LC optical fiber connector is ejected, and unlocking is realized; resetting: the knob is loosened, and under the action of the reset elastic force of the reset spring, the abutting part of the thimble automatically retracts towards the direction close to the through hole. Therefore, the invention has the characteristics of convenient operation, small occupied space and good stability.
2. The transverse guide groove comprises a first transverse guide groove and a second transverse guide groove; the longitudinal limiting groove comprises a first longitudinal limiting groove and a second longitudinal limiting groove which are staggered with each other along the vertical direction; the joint of the first transverse guide groove and the first longitudinal limiting groove is an arc transition surface, and the joint of the second transverse guide groove and the second longitudinal limiting groove is an arc transition surface; the bottom surface of the first longitudinal limiting groove is provided with an inclined first rotation stopping inclined surface, the top surface of the second longitudinal limiting groove is provided with an inclined second rotation stopping inclined surface, and the first rotation stopping inclined surface and the second rotation stopping inclined surface are parallel to each other; the limiting rod comprises a first limiting rod and a second limiting rod which are symmetrically arranged on two sides of the thimble. In the resetting step, the knob is loosened, under the action of the resetting elastic force of the resetting spring, the abutting part of the ejector pin automatically retracts towards the direction close to the through hole, in the automatic retracting process, the first limiting rod enters the first longitudinal limiting groove from the first transverse guide groove along the arc transition surface, the second limiting rod enters the second longitudinal limiting groove from the second transverse guide groove along the arc transition surface, because the first longitudinal limiting groove and the second longitudinal limiting groove are staggered in the vertical direction, the first limiting rod and the second limiting rod rotate along the anticlockwise direction under the action of the resetting elastic force of the resetting spring, when the first limiting rod abuts against the first rotation stopping inclined surface, and the second limiting rod abuts against the second rotation stopping inclined surface, the ejector pin stops rotating, and returns to the initial position. Therefore, the automatic reset device can realize automatic reset and has the characteristics of high operation method and high working efficiency.
3. The connecting device can realize the connection of the optical fiber at the rotary driving end and the optical fiber at the probe end, ensures that the optical fiber guide wire obtains an image by rotary scanning, and has the advantages of stable connection and convenient disassembly and assembly; after the joint portion of the shell fragment that backs up LC fiber connector when knob formula adjustment mechanism realized taking off the lock, alright even axle spare with the moment of torsion was extracted from the sleeve pipe, conveniently changes or maintains the probe of installing on the axle spare is even to the moment of torsion, when needs install, need with the moment of torsion even axle spare peg graft back the sleeve pipe can, guarantee the accurate butt joint of second storage tank and adapter sleeve of the axle spare of the moment of torsion under the spacing of spacer pin.
Drawings
FIG. 1 is a perspective view of a knob type unlocking structure according to a first embodiment;
FIG. 2 is a sectional view of a knob type unlocking structure according to the first embodiment;
FIG. 3 is a perspective view of a mounting base according to the first embodiment;
FIG. 4 is a perspective view of the mounting base of the first embodiment at another angle;
FIG. 5 is a perspective view of a knob type adjustment mechanism according to the first embodiment;
FIG. 6 is a schematic structural diagram of a connecting device according to a second embodiment;
FIG. 7 is a perspective view of the coupling device of the second embodiment without the knob type unlocking structure and the sleeve;
fig. 8 is a perspective view of the first LC fiber connector and the second LC fiber connector according to the second embodiment.
In the figure: 100. a knob type unlocking structure; 10. a mounting seat; 111. a first through hole; 112. a second through hole; 121. a first lateral guide groove; 122. a second lateral guide groove; 131. a first longitudinal limiting groove; 1311. a first rotation-stopping slope; 132. a second longitudinal limiting groove; 1321. a second rotation-stopping slope; 20. a knob type adjusting mechanism; 21. a thimble; 211. an abutting portion; 212. a knob connecting portion; 213. a guide portion; 214. an installation part; 22. a limiting rod; 221. a first limit rod; 222. a second limiting rod; 23. a return spring; 24. a knob; 30. mounting a plate; 31. mounting holes; 40. an adjustable limiting member; 41. a limiting block; 42. locking the screw; 200. a connection base; 210. a base plate; 220. a first side plate; 230. a second side plate; 300. a hollow shaft; 310. a first accommodating groove; 400. a torque coupling member; 410. a second accommodating groove; 500. connecting sleeves; 600. a first LC fiber splice; 700. a second LC fiber splice; 710. a spring plate; 711. a clamping part; 800. a sleeve; 810. a guide hole; 820. fastening screws; 830. and a limiting pin.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict. Except as specifically noted, the materials and equipment used in this example are commercially available. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.
In the description of the present application, it should be noted that unless otherwise specifically stated or limited, the terms "connected," "communicating," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a connection through an intervening medium, a connection between two elements, or an interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The first embodiment is as follows:
referring to fig. 1-5, a knob type unlocking structure 100 for OCT includes:
the mounting seat 10 is provided with a through hole along the transverse direction on the mounting seat 10; the mounting seat 10 is provided with a transverse guide groove and a longitudinal limiting groove which are communicated with each other, and the transverse guide groove and the longitudinal limiting groove are respectively communicated with the through hole;
the knob type adjusting mechanism 20 comprises a thimble 21, a limiting rod 22, a return spring 23 and a knob 24; a part of the thimble 21 is inserted into the through hole of the mounting base 10, one end of the thimble 21 passes through the through hole and extends out to one side of the mounting base 10 to form an abutting part 211, and the other end passes through the through hole and extends out to the other side of the mounting base 10 to form a knob connecting part 212; one end of the limiting rod is fixedly connected with the thimble 21, and the other end of the limiting rod is rotatably arranged in the longitudinal limiting groove; the reset spring 23 is arranged in the through hole, and the reset spring 23 is sleeved on the thimble 21 and is suitable for applying reset elasticity to the thimble 21; the knob is fixedly mounted on the knob connecting portion 212 of the thimble 21.
The working principle of the embodiment is as follows:
a rotation step: the knob is rotated, the knob drives the thimble 21 to rotate, and the thimble 21 drives the limiting rod to rotate, so that the limiting rod moves into the guide groove from the longitudinal limiting groove;
unlocking: then, the knob is pressed down towards the direction close to the through hole, the ejector pin 21 moves in the through hole, the limiting rod moves in the guide groove, the abutting part 211 of the ejector pin 21 is ejected towards the direction far away from the through hole, and when the ejector pin 21 moves to the preset position, the abutting part 211 can be in contact with the elastic sheet of the LC optical fiber connector and applies pressure, so that the elastic sheet of the LC optical fiber connector is ejected, and unlocking is realized;
resetting: when the knob is released, the abutting portion 211 of the thimble 21 is automatically retracted in a direction approaching the through hole by the return spring force of the return spring 23.
In the preferred embodiment of the present invention, the lateral guide grooves include a first lateral guide groove 121 and a second lateral guide groove 122 symmetrically disposed at both sides of the through hole; the longitudinal direction-limiting groove includes a first longitudinal direction-limiting groove 131 vertically extending downward along one end of the first transverse guide groove 121 and a second longitudinal direction-limiting groove 132 vertically extending upward along one end of the second transverse guide groove 122; the joint of the first transverse guide groove 121 and the first longitudinal limiting groove 131 is an arc transition surface, and the joint of the second transverse guide groove 122 and the second longitudinal limiting groove 132 is an arc transition surface; the bottom surface of the first longitudinal limiting groove 131 is provided with an inclined first rotation stopping inclined surface 1311, the top surface of the second longitudinal limiting groove 132 is provided with an inclined second rotation stopping inclined surface 1321, and the first rotation stopping inclined surface 1311 and the second rotation stopping inclined surface 1321 are parallel to each other;
the limiting rod 22 comprises a first limiting rod 221 and a second limiting rod 222 which are symmetrically arranged at two sides of the thimble 21, one end of the first limiting rod 221 is fixedly connected with the thimble 21, and the other end thereof is rotatably arranged in the first longitudinal limiting groove 131; one end of the second limiting rod 222 is fixedly connected to the thimble 21, and the other end thereof is rotatably disposed in the second longitudinal limiting groove 132.
The working process of the preferred embodiment described above:
a rotation step: rotating the knob clockwise, the knob driving the thimble 21 to rotate, the thimble 21 driving the limiting rod to rotate, so that the first limiting rod 221 enters the first transverse guiding groove 121 from the first longitudinal limiting groove 131 along the arc transition surface, and the second limiting rod 222 enters the second transverse guiding groove 122 from the second longitudinal limiting groove 132 along the arc transition surface;
unlocking: then, the knob is pressed down towards the direction close to the through hole, the thimble 21 moves in the through hole, the first limiting rod 221 moves in the first transverse guide groove 121, the second limiting rod 222 moves in the second transverse guide groove 122, the abutting part 211 of the thimble 21 is ejected towards the direction far away from the through hole, and when the thimble 21 moves to the preset position, the abutting part 211 can contact with the elastic sheet of the LC optical fiber connector and apply pressure, so that the elastic sheet of the LC optical fiber connector is ejected, and unlocking is realized;
resetting: when the knob is loosened, under the action of the return elastic force of the return spring 23, the abutting portion 211 of the thimble 21 automatically retracts in the direction approaching the through hole, and during the automatic retraction, the first limit rod 221 enters the first longitudinal limit groove 131 from the first transverse guide groove along the arc transition surface, the second limit rod 222 enters the second longitudinal limit groove 132 from the second transverse guide groove 122 along the arc transition surface, and because the first longitudinal limit groove 131 and the second longitudinal limit groove 132 are vertically displaced, the first limit rod 221 and the second limit rod 222 rotate in the counterclockwise direction under the action of the return elastic force of the return spring 23, and when the first limit rod 221 abuts against the first rotation stop inclined surface 1311, and the second limit rod 222 abuts against the second rotation stop inclined surface 1321, the thimble 21 stops rotating and returns to the initial position.
In the preferred embodiment of the present invention, the present invention further comprises a mounting plate 30, wherein the mounting plate 30 is provided with a mounting hole 31 communicated with the through hole; the mounting plate 30 is fixedly connected with the side surface of the mounting seat 10 adjacent to the longitudinal limiting groove in a detachable mode; the abutting portion 211 of the thimble 21 is inserted into the through hole of the mount 10 through the mount hole 31 of the mount 30. Specifically, the mounting plate 30 and the mounting base 10 are detachably and fixedly connected by screws, and the number of the screws may be two or more, and may be adjusted accordingly as needed. Through the design of the mounting plate 30, the knob type adjusting mechanism 20 is convenient to disassemble and assemble, during installation, the mounting plate 30 is firstly sleeved on the thimble 21, then the return spring 23 is sleeved on the thimble 21, the thimble 21 is inserted into the through hole, the limiting rod 22 is correspondingly installed in the longitudinal limiting groove, and then the mounting plate 30 is fixed to finish installation.
In the preferred embodiment of the present invention, the present invention further includes an adjustable limiting member 40, the adjustable limiting member 40 is adjustably mounted on the thimble 21, and the adjustable limiting member 40 is located between the mounting plate 30 and the knob. Specifically, the adjustable limiting member 40 includes a limiting block 41 having an axial through hole and a locking screw 42, and a threaded hole is radially formed in the limiting block 41; the limiting block 41 is sleeved on the thimble 21 through the axial through hole, and the locking screw 42 is in threaded connection with the threaded hole and fastens the limiting block 41 on the thimble 21. In the unlocking process, the knob is pressed down towards the direction close to the through hole, the ejector pin 21 moves in the through hole, the limiting rod moves in the guide groove, the abutting part 211 of the ejector pin 21 is ejected towards the direction far away from the through hole, when the limiting block 41 abuts against the mounting plate 30, the ejector pin 21 moves to the preset position and cannot move continuously, and at the moment, the abutting part 211 just enables the elastic sheet of the LC optical fiber connector to be ejected, so that unlocking is realized; by the design, overlarge force applied to the elastic sheet is avoided, and the service life of the elastic sheet is prolonged.
In the preferred embodiment of the present invention, the through holes include a first through hole 111 and a second through hole 112 sequentially connected from left to right, and the diameter of the first through hole 111 is smaller than that of the second through hole 112;
the thimble 21 comprises a contact part 211, a guide part 213, a mounting part 214 and a knob connecting part 212 which are connected from left to right in sequence; the diameters of the contact portion 211, the guide portion 213, and the mounting portion 214 gradually increase; the diameter of the guide portion 213 is smaller than the diameter of the first through hole 111; a part of the knob connecting part 212 and the mounting part 214 extends out of the other side of the mounting seat 10 through the second through hole 112, the other part of the mounting part 214 is inserted into the second through hole 112 of the mounting seat 10 through the mounting hole 31 of the mounting plate 30, a part of the guide part 213 is positioned in the first through hole 111, the other part is positioned in the second through hole 112, and a part of the abutting part 211 extends out of the one side of the mounting seat 10 through the first through hole 111;
the return spring 23 is sleeved on the guide portion 213, one end of the return spring is abutted to the end face of the mounting portion 214, and the other end of the return spring is abutted to the end face of the second through hole 112, so that the return spring 23 is more convenient to mount and dismount.
In the preferred embodiment of the present invention, the knob is detachably and fixedly connected to the knob connecting portion 212 in a snap-fit manner.
Example two:
referring to fig. 6-8, the coupling device includes a knob-type release mechanism 100 according to the first embodiment.
Specifically, the connecting device further includes:
the connection base 200 comprises a bottom plate 210, and a first side plate 220 and a second side plate 230 which are symmetrically arranged at two sides of the bottom plate 210;
a hollow shaft 300 having an axial through hole, one end of the hollow shaft 300 being rotatably mounted on the first side plate 220; the other end of the hollow shaft 300 is provided with a first accommodating groove 310;
a torque coupling member 400 having an axial through hole, one end of the torque coupling member 400 being rotatably inserted into the second side plate 230; the other end of the torque coupling 400 is provided with a second receiving groove 410;
the optical fiber connector comprises a connecting sleeve 500, a first LC optical fiber connector 600 used for being connected with a driving end optical fiber and a second LC optical fiber connector 700 used for being connected with a probe end optical fiber; one end of the connection sleeve 500 is fixedly installed in the first accommodation groove 310, and the other end thereof is slidably inserted into the second accommodation groove 410; the connecting sleeve 500 is fixedly connected with the hollow shaft 300; one wiring port of the first LC fiber connector 600 is connected with one wiring port of the second LC fiber connector 700 and then is installed in the connection sleeve 500 together, wherein the other wiring port of the first LC fiber connector 600 is communicated with the axial through hole of the hollow shaft 300, the other wiring port of the second LC fiber connector 700 is communicated with the axial through hole of the torque coupling shaft 400, and the clamping portion 711 of the spring plate 710 of the second LC fiber connector 700 extends out of the connection sleeve 500 and is clamped with the connection sleeve 500;
the sleeve 800, the sleeve 800 is sleeved on the outer walls of the hollow shaft 300 and the torque coupling shaft 400, one end of the sleeve 800 is fixedly connected with the hollow shaft 300 through a fastening screw 820, the other end of the sleeve 800 is provided with a limit pin 830 which can be extended into the second accommodating groove 410 of the torque coupling shaft 400, and a guide hole 810 is arranged on the sleeve 800 corresponding to the position of the clamping part 711 of the spring plate 710 of the second LC optical fiber connector 700; when the sleeve rotates, one end of the sleeve drives the hollow shaft to rotate through the fastening screw, and the other end of the sleeve drives the torque connecting shaft 400 to rotate through the limiting pin 830;
the knob type unlocking structure 100 is fixedly installed on the bottom plate 210, the thimble 21 of the knob type unlocking structure 100 is over against the guiding hole 810 of the sleeve 800, and when the thimble 21 moves to a preset position, the abutting portion 211 can pass through the guiding hole 810 of the sleeve 800 to contact with the clamping portion 711 of the spring 710 of the second LC fiber connector 700 and apply pressure.
In practical application, the connecting device can realize the connection of the optical fiber at the rotary driving end and the optical fiber at the probe end, ensure that the optical fiber guide wire obtains an image by rotary scanning, and has the advantages of stable connection and convenient disassembly and assembly; after the clamping portion of the elastic sheet of the second LC optical fiber connector is pushed open by the knob type adjusting mechanism to realize unlocking, the torque connecting shaft 400 and the second LC optical fiber connector can be pulled out from the sleeve 800, the probe mounted on the torque connecting shaft 400 can be replaced or maintained conveniently, when the torque connecting shaft 400 is mounted as required, the torque connecting shaft 400 is required to be inserted and connected back to the sleeve, and the second accommodating groove 410 of the torque connecting shaft 400 is ensured to be accurately butted with the connecting sleeve 500 under the limit of the limit pin 830.
While only certain features and embodiments of the application have been illustrated and described, many modifications and changes may occur to those skilled in the art (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the scope and spirit of the invention in the claims.
Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention should not be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. A knob type unlocking structure for OCT, comprising:
the mounting seat is provided with a through hole along the transverse direction; the mounting seat is provided with a transverse guide groove and a longitudinal limiting groove, the transverse guide groove and the longitudinal limiting groove are communicated with each other, and the transverse guide groove and the longitudinal limiting groove are respectively communicated with the through hole;
the knob type adjusting mechanism comprises a thimble, a limiting rod, a return spring and a knob; one end of the thimble penetrates through the through hole and extends out of one side of the mounting seat to form a butting part, and the other end of the thimble penetrates through the through hole and extends out of the other side of the mounting seat to form a knob connecting part; one end of the limiting rod is fixedly connected with the thimble, and the other end of the limiting rod is rotatably arranged in the longitudinal limiting groove; the reset spring is arranged in the through hole, and the reset spring is sleeved on the ejector pin so as to be suitable for applying reset elasticity to the ejector pin; the knob is fixedly installed on the knob connecting portion of the ejector pin.
2. The knob type unlocking structure for OCT according to claim 1, wherein said lateral guide grooves comprise a first lateral guide groove and a second lateral guide groove symmetrically disposed at both sides of said through hole; the longitudinal limiting groove comprises a first longitudinal limiting groove and a second longitudinal limiting groove, the first longitudinal limiting groove vertically extends downwards along one end of the first transverse guide groove, and the second longitudinal limiting groove vertically extends upwards along one end of the second transverse guide groove; the joint of the first transverse guide groove and the first longitudinal limiting groove is an arc transition surface, and the joint of the second transverse guide groove and the second longitudinal limiting groove is an arc transition surface; the bottom surface of the first longitudinal limiting groove is provided with an inclined first rotation stopping inclined surface, the top surface of the second longitudinal limiting groove is provided with an inclined second rotation stopping inclined surface, and the first rotation stopping inclined surface and the second rotation stopping inclined surface are parallel to each other;
the limiting rod comprises a first limiting rod and a second limiting rod which are symmetrically arranged on two sides of the thimble, one end of the first limiting rod is fixedly connected with the thimble, and the other end of the first limiting rod is rotatably arranged in the first longitudinal limiting groove; one end of the second limiting rod is fixedly connected with the thimble, and the other end of the second limiting rod is rotatably arranged in the second longitudinal limiting groove.
3. The knob type unlocking structure for OCT according to claim 1, further comprising a mounting plate provided with a mounting hole communicating with said through hole; the mounting plate is fixedly connected with the side surface of the mounting seat adjacent to the longitudinal limiting groove in a detachable mode; the abutting part of the thimble penetrates through the mounting hole of the mounting plate and is inserted in the through hole of the mounting seat.
4. The knob type unlocking structure for OCT according to claim 3, wherein said mounting plate and said mounting base are detachably and fixedly connected by screws.
5. The knob type unlocking structure for OCT of claim 3, further comprising an adjustable stop member adjustably mounted on said spike, said adjustable stop member being located between said mounting plate and said knob.
6. The knob type unlocking structure for OCT according to claim 5, wherein said adjustable position-limiting member comprises a position-limiting block having an axial through hole and a locking screw, said position-limiting block having a threaded hole radially disposed; the limiting block is sleeved on the ejector pin through the axial through hole, and the locking screw is in threaded connection with the threaded hole and fastens the limiting block on the ejector pin.
7. The knob type unlocking structure for OCT according to claim 1, wherein said through holes comprise a first through hole and a second through hole which are sequentially communicated from left to right, a diameter of said first through hole being smaller than a diameter of said second through hole;
the thimble comprises a butting part, a guide part, an installation part and a knob connection part which are connected in sequence from left to right; the diameters of the abutting part, the guide part and the mounting part are gradually increased; the diameter of the guide part is smaller than that of the first through hole; one part of the knob connecting part and the mounting part extends out of the other side of the mounting seat through the second through hole, the other part of the mounting part passes through the mounting hole of the mounting plate and is inserted into the second through hole of the mounting seat, one part of the guide part is positioned in the first through hole, the other part of the guide part is positioned in the second through hole, and one part of the abutting part extends out of one side of the mounting seat through the first through hole;
one end of the reset spring is abutted against the end face of the mounting part, and the other end of the reset spring is abutted against the end face of the second through hole.
8. The knob type unlocking structure for OCT according to claim 1, wherein said knob and said knob connecting portion are detachably and fixedly connected by means of snap-in.
9. Connection means, characterized in that it comprises a knob-type unlocking structure according to any one of claims 1 to 8.
10. The connection device of claim 9, further comprising:
the connecting base comprises a bottom plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are symmetrically arranged on two sides of the bottom plate;
the hollow shaft is provided with an axial through hole, and one end of the hollow shaft is rotatably arranged on the first side plate; the other end of the hollow shaft is provided with a first accommodating groove;
the torque connecting shaft piece is provided with an axial through hole, and one end of the torque connecting shaft piece is rotatably inserted into the second side plate; the other end of the torque connecting shaft piece is provided with a second accommodating groove;
the optical fiber connector comprises a connecting sleeve, a first LC optical fiber connector used for being connected with the optical fiber at the driving end and a second LC optical fiber connector used for being connected with the optical fiber at the probe end; one end of the connecting sleeve is fixedly arranged in the first accommodating groove, and the other end of the connecting sleeve is slidably inserted in the second accommodating groove; the connecting sleeve is fixedly connected with the hollow shaft; one wiring port of the first LC optical fiber connector and one wiring port of the second LC optical fiber connector are connected and then are jointly installed in the connecting sleeve, wherein the other wiring port of the first LC optical fiber connector is communicated with the axial through hole of the hollow shaft, the other wiring port of the second LC optical fiber connector is communicated with the axial through hole of the torque connecting shaft piece, and the clamping part of the elastic sheet of the second LC optical fiber connector extends out of the connecting sleeve and is clamped with the connecting sleeve;
the sleeve is sleeved on the outer walls of the hollow shaft and the torque connecting shaft piece, one end of the sleeve is fixedly connected with the hollow shaft through a fastening screw, the other end of the sleeve is provided with a limiting pin which can extend into a second accommodating groove of the torque connecting shaft piece, and a guide hole is formed in the position, corresponding to the clamping part of the elastic piece of the second LC optical fiber connector, of the sleeve;
the knob type unlocking structure is fixedly arranged on the bottom plate, a thimble of the knob type unlocking structure is over against the guide hole of the sleeve, and when the thimble moves to a preset position, the abutting part of the thimble can penetrate through the guide hole of the sleeve to be in contact with the clamping part of the elastic sheet of the second LC optical fiber connector and apply pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110474371.3A CN113189715B (en) | 2021-04-29 | 2021-04-29 | Knob type unlocking structure for OCT and connecting device comprising knob type unlocking structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110474371.3A CN113189715B (en) | 2021-04-29 | 2021-04-29 | Knob type unlocking structure for OCT and connecting device comprising knob type unlocking structure |
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| CN113189715A true CN113189715A (en) | 2021-07-30 |
| CN113189715B CN113189715B (en) | 2022-04-12 |
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| US8508748B1 (en) * | 2010-06-03 | 2013-08-13 | Kla-Tencor Corporation | Inspection system with fiber coupled OCT focusing |
| CN102758561A (en) * | 2012-07-27 | 2012-10-31 | 广东坚士制锁有限公司 | Ball lock capable of being opened by pushing, pulling and twisting |
| CN207458820U (en) * | 2017-12-04 | 2018-06-05 | 浙江大森缝纫机有限公司 | A kind of submarine knob |
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| Publication number | Publication date |
|---|---|
| CN113189715B (en) | 2022-04-12 |
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Application publication date: 20210730 Assignee: Hunan Mealco Medical Technology Co.,Ltd. Assignor: GUANGZHOU WINSTAR MEDICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2022980018378 Denomination of invention: A rotary unlocking structure for OCT and its connecting device Granted publication date: 20220412 License type: Common License Record date: 20221014 |
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Assignee: Hunan Mealco Medical Technology Co.,Ltd. Assignor: GUANGZHOU WINSTAR MEDICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2022980018378 Date of cancellation: 20230512 |
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Effective date of registration: 20240418 Address after: 518000, No. 33, Guimiao New Village, Yuegui Community, Yuehai Street, Nanshan District, Shenzhen, Guangdong Province 104 Patentee after: Shenzhen Aositian Medical Technology Co.,Ltd. Country or region after: China Address before: 510700 No. B205, zone B, Guangzhou International Business Incubator, No. 3, Juquan Road, Science City, Guangzhou high tech Industrial Development Zone, Guangzhou, Guangdong Province Patentee before: GUANGZHOU WINSTAR MEDICAL TECHNOLOGY Co.,Ltd. Country or region before: China |