CN213405977U - Slit lamp light source structure for electrically adjusting slit light width - Google Patents

Abstract

The utility model relates to a slit lamp light source structure of electronic regulation slit light width, slit light width adjustment mechanism includes width adjustment motor, shifting block, eccentric wheel, two crack pieces, two slit section of thick bamboo of halving, has certain clearance between two the crack section of thick bamboo, and each the crack section of thick bamboo lower extreme is installed one the crack piece, is connected with the U type spring that is used for pulling two the crack section of thick bamboo is close to between two the crack section of thick bamboo, the shifting block is located between width adjustment motor and the crack section of thick bamboo, two the crack section of thick bamboo is equipped with a shifting post respectively towards one side of shifting block, the eccentric wheel with the output shaft of width adjustment motor, width adjustment motor rotates and drives the eccentric wheel rotates, when the eccentric wheel promotes the shifting block moves up, the shifting block shifts two shifting posts apart, the two shifting columns drive the two fracture cylinders to separate.

Description

Slit lamp light source structure for electrically adjusting slit light width

Technical Field

The utility model belongs to the technical field of the slit lamp and specifically relates to a slit lamp light source structure of electrical control slit light width is related to.

Background

In slit lamp microscopy, a centralized light source illuminates an examination part, so that strong contrast with dark surrounding parts can be conveniently realized, and the slit lamp microscopy is matched with a binocular microscope, so that superficial lesions can be clearly observed, a series of optical sections can be formed by utilizing a fine slit light band through transparent tissues of each part of an eyeball, and tiny lesions of different layers of refractive interstitium and even deep tissues can be clearly displayed. The slit-lamp microscope consists of an illumination system and a binocular microscope, wherein the illumination system comprises a light source for emitting slit light. In the slit lamp use, need adjust the width of light band, and among the current slit lamp, the regulation to the width of each light of above-mentioned all is through manual regulation mode, and the medical personnel that need operate in the use are manual to be adjusted slowly according to experience, and this regulation mode is higher to medical personnel's work experience requirement, and in addition, manual regulation human labor burden is heavier, adjusts the precision low, consequently, need provide a slit lamp light source structure of electronic regulation slit light width.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a slit lamp light source structure of electrical control slit light width, have use manpower sparingly, convenient operation, adjust fast, adjust advantages such as precision height.

The purpose of the utility model is realized through the following technical scheme:

a slit lamp light source structure for electrically adjusting slit light width comprises a shell, a light emitting component and a slit light width adjusting mechanism, wherein the slit light width adjusting mechanism is located below the light emitting component and comprises a width adjusting motor, a shifting block, an eccentric wheel, two slit blocks and two slit cylinders which are half-opened, a certain gap is formed between the two slit cylinders, one slit block is installed at the lower end of each slit cylinder, a U-shaped spring for pulling the two slit cylinders to be close to is connected between the two slit cylinders, the shifting block is arranged between the width adjusting motor and the slit cylinders, one sides of the two slit cylinders, facing the shifting block, are respectively provided with a shifting column, the eccentric wheel is connected with an output shaft of the width adjusting motor, the width adjusting motor rotates to drive the eccentric wheel to rotate, when the eccentric wheel pushes the shifting block to move upwards, the shifting block shifts the two shifting columns apart, and the two shifting columns drive the two fracture cylinders to separate.

As a preferred embodiment of the present invention, the eccentric wheel includes a rotating wheel and a dial wheel eccentrically mounted on the rotating wheel, and the rotating wheel is coaxially connected to an output shaft of the width adjustment motor; the shifting block is positioned between the two shifting columns, the two side walls of the shifting block, facing the shifting columns, are shifting faces which incline outwards from top to bottom, a shifting plate is arranged on one side of the shifting block, facing the eccentric wheel, the shifting wheel abuts against the lower end face of the shifting plate, the shifting block is pushed to move upwards through the shifting plate when the shifting wheel rotates upwards, and the two shifting columns are separated under the guidance of the shifting faces.

As a preferred embodiment of the present invention, two support pins for supporting the fracture cylinder are fixedly arranged in the housing, and the two support pins are coaxially fixed on two sides in the housing; two sides of the upper end of each fractured cylinder are respectively connected with a semi-cylinder which is used for being sleeved outside the supporting pin, and the peripheries of the semi-cylinders on the two fractured cylinders are sleeved with lantern rings, so that the two fractured cylinders are rotatably arranged on the supporting pin, and the two fractured cylinders can respectively rotate around the supporting pin.

As a preferred embodiment of the present invention, the shifting block is connected with a pull rod, the pull rod is sleeved with a return spring, and the return spring is used for pulling the shifting block to move downwards.

The utility model discloses following beneficial effect has: the utility model discloses a slit lamp light source structure of electronic regulation slit light width, including slit light width adjustment mechanism, when the width of needs increase slit light, only need drive width adjustment motor, promote the shifting block through the eccentric wheel and shift up, the shifting block can promote the crack section of thick bamboo to open, and the distance between two crack pieces will increase thereupon too at this moment, and the width of the light band through the clearance between the crack piece increases at this moment; because be connected with U type spring between two crack section of thick bamboo, U type spring keeps pulling two crack section of thick bamboo states that are close to always, so when the width of slit light is dwindled to needs, only need drive width adjustment motor, the shifting block has the space that moves down after the eccentric wheel rotates, extrusion and shifting block self action of gravity at a crack section of thick bamboo this moment, the shifting block moves down, under U type spring's effect, the distance shrink between two crack sections, the distance between two crack blocks also will reduce thereupon this moment, the light band width through the clearance between the crack block this moment reduces. Therefore, the utility model discloses in, when needing to adjust the width of slit light, only need through the width adjustment motor that remote control corresponds rotate can, need not the staff and directly adjust the slit lamp on the slit lamp, from this, for the slit lamp of manual regulation, the utility model has the advantages of use manpower sparingly, convenient operation, regulating speed are fast, adjust the precision height. Further, because the utility model discloses a motor drive adjusts, so only need when adjusting control motor the rotation can, to the operation of motor, can use among the current motor control mode such as remote control, button control, intelligent control or remote control, promote the automation, intelligent, the high-end development of slit lamp.

Drawings

Fig. 1 is a partial structural schematic diagram of a slit-lamp light source structure for electrically adjusting the slit light width in example 1;

FIG. 2 is an exploded schematic view of the structure of FIG. 1;

FIG. 3 is an exploded view of the slit light width adjusting mechanism in example 1;

FIG. 4 is a schematic structural view of a fracture cylinder in example 1;

FIG. 5 is a schematic diagram showing the overall structure of an electrically controlled slit-lamp light source structure according to example 2;

FIG. 6 is a partial schematic structural view of a structure of an electrically adjusted slit-lamp light source according to example 2;

FIG. 7 is a schematic mid-sectional view of the structure of FIG. 6;

FIG. 8 is a schematic structural view of a slit light length adjusting mechanism in example 2;

FIG. 9 is an exploded schematic view of the structure of FIG. 8;

FIG. 10 is an exploded schematic view of the structure of FIG. 8;

fig. 11 is an exploded schematic view of a partial structure of a slit optical length adjustment mechanism in example 2;

fig. 12 is an exploded view of a partial structure of the electrically adjusted slit-lamp light source in example 2.

The specific structure in the figure illustrates that: 1 shell, 11 upper shell, 12 middle shell, 13 lower shell, 14 lower sleeve, 15 gear shell, 2 crack light width adjusting mechanism, 21 width adjusting motor, 22 crack block, 23 crack cylinder, 231 semi-cylinder, 24 eccentric wheel, 241 rotating wheel, 242 dial wheel, 25 dial block, 251 dial face, 252 dial plate, 26 dial column, 27 support pin, 271 lantern ring, 28U-shaped spring, 29 pull rod, 291 reset spring, 3 crack light length adjusting mechanism, 31 length adjusting motor, 311 first driving gear, 312 first transmission gear, 32 diaphragm disk, 321 clear hole, 33 first rotating sleeve, 331 first rotating gear, 34 diaphragm adjusting disk, 341 filter, 35 second rotating sleeve, 351 second rotating gear, 36 light color adjusting motor, 361 second driving gear, 362 second transmission gear, 4 crack light angle adjusting mechanism, 41 angle adjusting motor, 42 hollow rotating platform, 421 outer rotating ring, 422 inner fixed ring, 5 projection lens cone, 6 light emitting component, 7 reflector.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments shown in the drawings.

Example 1

A slit lamp light source structure for electrically adjusting slit light width is disclosed, referring to FIGS. 1-4, and comprises a housing 1, a light emitting assembly 6 and a slit light width adjusting mechanism 2, wherein the slit light width adjusting mechanism 2 is located below the light emitting assembly 6, the slit light width adjusting mechanism 2 comprises a width adjusting motor 21, a shifting block 25, an eccentric wheel 14, two slit blocks 11 and two slit cylinders 13 which are half-opened, one slit block 22 is installed at the lower end of each slit cylinder 23, a U-shaped spring 28 for pulling the two slit cylinders 23 to approach is connected between the two slit cylinders 23, the shifting block 25 is arranged between the width adjusting motor 21 and the slit cylinders 23, one sides of the two slit cylinders 23 facing the shifting block 25 are respectively provided with a shifting post 26, and the eccentric wheel 24 is connected with an output shaft of the width adjusting motor 21, the width adjusting motor 21 rotates to drive the eccentric wheel 24 to rotate, when the eccentric wheel 24 pushes the shifting block 25 to move upwards, the shifting block 25 shifts the two shifting columns 26 apart, and the two shifting columns 26 drive the two slit cylinders 23 to separate. In the process of adjusting the width of the slit light, when the eccentric wheel 24 pushes the shifting block 25 to move upwards, the slit cylinders 23 are shifted away along with the shifting columns 26, so that the width of the slit light can be increased, at the moment, the U-shaped spring 28 connected between the two slit cylinders 23 is stretched, when the eccentric wheel 24 moves downwards, the shifting block 25 moves downwards along with the U-shaped spring, at the moment, under the pulling of the elastic force of the U-shaped spring 28, the two slit cylinders 23 move close to each other, and therefore the width of the slit light can be reduced. In the process that the two slit cylinders 23 approach, the width adjusting motor 21 is not used as a power source, but the two slit cylinders 23 approach by pulling of the two U-shaped springs, so that abrasion caused by contact of knife edges of slit blocks can be avoided, the rotation stroke of the width adjusting motor 21 in the rotation process is not limited, and the width adjusting motor 21 can be prevented from being locked.

As a preferred embodiment of the present embodiment, referring to fig. 3, the eccentric wheel 24 includes a rotating wheel 241 and a thumb wheel 242 eccentrically mounted on the rotating wheel 241, and the rotating wheel 241 is coaxially connected to the output shaft 21 of the width adjustment motor; the shifting block 25 is located between the two shifting posts 26, two side walls of the shifting block 25 facing the shifting posts 26 are shifting surfaces 251 which incline outwards from top to bottom, one side of the shifting block 25 facing the eccentric wheel 24 is provided with a shifting plate 252, the shifting wheel 252 abuts against the lower end surface of the shifting plate 252, the shifting block 25 is pushed to move upwards by the shifting plate 252 when the shifting wheel 242 rotates upwards, and at the moment, the two shifting posts 26 are separated under the guidance of the shifting surfaces 251.

As a preferred embodiment of the present embodiment, two support pins 27 for supporting the fractured-cylinder 23 are fixedly arranged in the housing 1, and the two support pins 27 are coaxially fixed on two sides in the housing 1; two sides of the upper end of each of the fractured cylinders 23 are respectively connected with a semi-cylinder 231 which is used for being sleeved outside the supporting pin 27, and the peripheries of the semi-cylinders 231 on the two fractured cylinders 23 are sleeved with a sleeve ring 271, so that the two fractured cylinders 23 are rotatably mounted on the supporting pin 27, and the two fractured cylinders 23 can respectively rotate around the supporting pin 27. Therefore, when the shifting block 25 moves upwards to push the fracture cylinders 23 to separate, the upper ends of the fracture cylinders 23 rotate around the supporting pin 27, the fracture blocks 22 at the lower ends can be separated, and in order to ensure that the two fracture cylinders 23 have larger rotation strokes, notches can be formed in the upper ends of the two fracture cylinders 23 on the semi-cylinders 231, so that the gap between the upper ends of the two fracture cylinders 23 can be increased, and a larger rotation space can be provided for the two fracture cylinders 23.

In a preferred embodiment of the embodiment, a pull rod 29 is connected to the dial 25, and a return spring 291 is sleeved on the pull rod 29, wherein the return spring 291 is used for pulling the dial 25 to move downwards. The pull rod 29 is arranged, so that the moving stroke of the shifting block 25 can be guided and limited, the shifting block can only move in the vertical direction, the return spring 291 is sleeved on the pull rod 29, and when the shifting wheel 242 moves downwards, the return spring 291 can pull the shifting block 25 to move downwards through the pull rod 29 to be tightly attached to the shifting wheel 242, so that the shifting block 25 can be ensured to move downwards smoothly, and the U-shaped spring 28 can drive the two slit cylinders 23 to approach smoothly.

Example 2

The present embodiment provides an electrically adjusted slit-lamp light source structure, and on the basis of embodiment 1, the present embodiment may further perform electrical adjustment on the length, color and angle of the slit light, and the specific structure of the present embodiment further includes, on the basis of embodiment 1:

the device comprises a projection lens cone 5, a reflecting mirror 7, a slit light length adjusting mechanism 3 and a slit light angle adjusting mechanism 4, wherein the reflecting mirror 7 is positioned below the projection lens cone 5, in the working process, the uppermost light emitting component 6 emits slit light, the width of the slit light is adjusted by a slit light width adjusting mechanism 2, the length of the slit light is adjusted by the slit light length adjusting mechanism 3, the angle of the slit light is adjusted by the slit light angle adjusting mechanism 4, and then the slit light is reflected by the projection lens cone 5 and the reflecting mirror 7;

the slit light width adjusting mechanism 2 is connected to the lower end of the light emitting assembly 6, the slit light length adjusting mechanism 3 is connected to the lower end of the slit light width adjusting mechanism 2, the slit light length adjusting mechanism 3 includes a length adjusting motor 31 and a diaphragm disc 32, a plurality of light through holes 321 with different diameters are formed in the diaphragm disc 32, and the length adjusting motor 31 is used for driving the diaphragm disc 32 to rotate so that slit light passes through the different light through holes 321; because the diameter of the through hole 321 is changed, the length of the slit light can be controlled as long as the slit light passes through different light-passing holes 321 or different positions of the light-passing holes 321;

the slit light angle adjusting mechanism 4 is located at the lower end of the slit light length adjusting mechanism 3, the slit light angle adjusting mechanism 4 includes a hollow rotating table 42, the hollow rotating table 42 includes an angle adjusting motor 41, and an inner fixing ring 422 and an outer rotating ring 421 which are coaxially arranged and can relatively rotate, the inner fixing ring 422 is fixedly connected with the projection lens barrel 5, the upper end of the outer rotating ring 421 is connected with the slit light length adjusting mechanism 3, the angle adjusting motor 41 is used for driving the outer rotating ring 421 to rotate, and when the outer rotating ring 321 rotates, an upper structural member of the outer rotating ring is driven to rotate so that slit light rotates relative to the reflector 7; the slit light emits flat narrow light after passing through the slit block 22, the reflector 7 is fixed in the process of adjusting the angle of the slit light, and the structure at the upper part of the hollow rotating platform 42 can rotate, so that the angle of the flat slit light irradiating the reflector changes after the hollow rotating platform 42 rotates, and the flat slit light is reflected by the reflector and emitted into the eyes of a patient, and thus, the adjustment of the angle of the slit light is realized.

In the slit light length adjusting mechanism 3, as a preferred implementation manner of this embodiment, referring to fig. 8-11, the slit light length adjusting mechanism 3 further includes a first rotating sleeve 33, an upper end of the first rotating sleeve 33 is fixedly connected to the diaphragm disk 32, a lower end of the first rotating sleeve is connected to a first rotating gear 351, an output shaft of the length adjusting motor 31 is connected to a first driving gear 311, and the first driving gear 311 rotates to drive the first rotating gear 331 to rotate, so as to drive the diaphragm disk 32 to rotate.

Further, a diaphragm adjusting disk 34 is further arranged below the diaphragm disk, and a plurality of different optical filters 341 are circumferentially arranged on the diaphragm adjusting disk 34; the second rotating sleeve 35 is sleeved outside the first rotating sleeve 33, the second rotating sleeve 35 can rotate relative to the first rotating sleeve 33, the upper end of the second rotating sleeve 33 is connected with the diaphragm adjusting disk 34, the lower end of the second rotating sleeve is connected with a second rotating gear 351, a light color adjusting motor 36 which is parallel to the length adjusting motor 31 is arranged in the shell 1, an output shaft of the light color adjusting motor 36 is connected with a second driving gear 361, and the second driving gear 361 rotates to drive the second rotating gear 351 to rotate, so that the diaphragm adjusting disk 34 is driven to rotate, and the light filter 341 which is different in order is corresponding to the position of slit light. Different filters 341 are enabled to correspond to the optical path of the slit light by rotating the diaphragm adjusting disc 34, so that the light color of the slit light can be changed by changing the filters 341, and the use and adjustment requirements are met. Specifically, in the structure, the diaphragm adjusting disk 34 and the diaphragm disk 32 are coaxially arranged up and down, the second rotating sleeve 35 is sleeved outside the first rotating sleeve 33, and the length adjusting motor 31 and the light color adjusting motor 36 are arranged side by side, so that the slit light length adjusting mechanism 3 and the light color adjusting mechanism can be compactly combined to a great extent, the occupied space of the structure is greatly reduced, the volume of the slit light source structure is reduced, the equipment material is saved, and the reliability of the equipment structure is improved.

Further, a first transmission gear 312 is disposed between the first rotation gear 331 and the first driving gear 311, and a second transmission gear 362 is disposed between the second rotation gear 351 and the second driving gear 361. By performing transmission shifting using the first transmission gear 312 and the second transmission gear 362, the radii and the numbers of teeth of the first drive gear 311 and the second drive gear 361 can be reduced, and thereby the torques obtained by the first rotation gear 331 and the second rotation gear 351 can be increased and the rotation speeds thereof can be reduced, thereby facilitating control. Further, a gear shell 15 is arranged outside the gear, and the gear covers the gear shell 15, so that the gear transmission structure can be protected.

Further, referring to fig. 7, the pull rod 29 penetrates through the first rotating sleeve 33, and the return spring 291 is located in the first rotating sleeve 33. The inner space of the first rotating sleeve 33 is used for the pull rod 29 to penetrate, so that the whole structure is compact while the use function is satisfied.

As a preferred embodiment of this embodiment, referring to fig. 6-7, the housing 1 includes an upper shell 11, a middle shell 12 and a lower shell 13 connected in sequence from top to bottom, the light emitting assembly 6 is installed in the upper shell 11, the slit light width adjusting mechanism 2 is installed in the middle shell 12, and the slit light length adjusting mechanism 3 is installed in the lower shell 13; the lower shell 13 comprises a lower sleeve 14 sleeved outside the projection lens barrel 5, and the length adjusting motor 31 and the angle adjusting motor 41 are respectively arranged outside the lower sleeve 14. The length adjusting motor 31 and the angle adjusting motor 41 are arranged side by side outside the lower sleeve 14, and the motors can be arranged at the same height, so that the height of the light source structure can be reduced, and the compactness and the stability of the structure are improved.

As a preferred embodiment of this embodiment, the light-color adjusting device further includes a control board, and the width adjusting motor 21, the length adjusting motor 31, the angle adjusting motor 41 and the light-color adjusting motor 36 are respectively connected to and driven by the control board. The control panel is arranged, when each parameter of the slit light needs to be adjusted, only a control instruction needs to be sent to the control panel, and the corresponding motor is controlled by the control panel to operate correspondingly, so that the control of the motor can be realized. In this embodiment, it is not limited to what manner is adopted to send the control instruction to the control board, specifically, the key control, the remote control, the intelligent control or the remote control in the prior art may be adopted, and when the method is applied, a person skilled in the art may apply the existing control manner to this embodiment according to actual needs, and the method is not described herein redundantly.

The above mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, that is, all the simple equivalent changes and modifications made according to the claims and the description of the present invention are still included in the scope of the present invention.

Claims (4)

1. The utility model provides a slit-lamp light source structure of electronic regulation slit light width, includes casing and light-emitting component, its characterized in that: the slit light width adjusting mechanism is positioned below the light-emitting component and comprises a width adjusting motor, a shifting block, an eccentric wheel, two slit blocks and two split slit cylinders, a certain gap is reserved between the two slit cylinders, one slit block is arranged at the lower end of each slit cylinder, a U-shaped spring for pulling the two slit cylinders to be close to is connected between the two slit cylinders, the shifting block is arranged between the width adjusting motor and the slit cylinders, one sides of the two slit cylinders, facing the shifting block, are respectively provided with a shifting column, the eccentric wheel is connected with an output shaft of the width adjusting motor, the width adjusting motor drives the eccentric wheel to rotate, when the shifting block is pushed by the eccentric wheel to move upwards, the shifting block shifts the two shifting columns apart, the two shifting columns drive the two fracture cylinders to separate.

2. A slit-lamp light source structure for electrically adjusting the width of a slit of light as defined in claim 1, wherein: the eccentric wheel comprises a rotating wheel and a shifting wheel eccentrically arranged on the rotating wheel, and the rotating wheel is coaxially connected with an output shaft of the width adjusting motor; the shifting block is positioned between the two shifting columns, the two side walls of the shifting block, facing the shifting columns, are shifting faces which incline outwards from top to bottom, a shifting plate is arranged on one side of the shifting block, facing the eccentric wheel, the shifting wheel abuts against the lower end face of the shifting plate, the shifting block is pushed to move upwards through the shifting plate when the shifting wheel rotates upwards, and the two shifting columns are separated under the guidance of the shifting faces.

3. A slit-lamp light source structure for electrically adjusting the width of a slit of light as defined in claim 2, wherein: two supporting pins for supporting the fractured cylinder are fixedly arranged in the shell, and the two supporting pins are coaxially fixed on two sides in the shell; two sides of the upper end of each fractured cylinder are respectively connected with a semi-cylinder which is used for being sleeved outside the supporting pin, and the peripheries of the semi-cylinders on the two fractured cylinders are sleeved with lantern rings, so that the two fractured cylinders are rotatably arranged on the supporting pin, and the two fractured cylinders can respectively rotate around the supporting pin.

4. A slit-lamp light source structure for electrically adjusting the width of a slit of light as defined in claim 3, wherein: the shifting block is connected with a pull rod, a return spring is sleeved on the pull rod, and the return spring is used for pulling the shifting block to move downwards.

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