An ocular biological parameter peripheral axial length auxiliary measuring device

Abstract

The application discloses an eyeball biological parameter peripheral ocular axial length auxiliary measuring device and belongs to the field of ocular axial length auxiliary measurement. The device comprises a bottom plate, a measuring device main body fixedly installed on the bottom plate, a measuring head arranged on the measuring device main body, an adjusting assembly arranged on the bottom plate, a movable block, a head support connected with the movable block through a connecting assembly, a fixed column fixedly installed on the movable block, a sleeve slidingly installed on the fixed column, the head support being rotatably installed on the sleeve, a first spring fixedly installed in the fixed column, a fixed block fixedly installed on the first spring, a fixed hole matched with the fixed block formed in the sleeve, and a pressing block slidingly installed on the sleeve and matched with the fixed block. A rotating assembly is arranged on the head support and comprises an adjusting worm. An elastic supporting pad is further arranged on the head support and used for contacting and supporting the head of a person to be measured. The angle of the head of the person to be measured can be adjusted, the measuring head can be aligned with the measuring part of the eyeball, and the measuring precision is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of axial length auxiliary measurement, more particularly to an eye biological parameter peripheral axial length auxiliary measurement device. BACKGROUND

[0002] The peripheral axial length in the eye biological parameters is an important index for evaluating the eye growth and development, refractive state and related eye diseases (such as myopia, glaucoma, etc.), and the measurement result has a key reference value for disease diagnosis, treatment plan making and efficacy monitoring. In the ophthalmic clinical practice, the accurate measurement of the axial length of the eye in different regions of the eye can help the doctors to more comprehensively understand the structural characteristics of the eye and provide a basis for personalized diagnosis and treatment.

[0003] With the development of ophthalmic medical technology, the accuracy and convenience of eye biological parameter measurement are continuously improved, and the measurement of the peripheral axial length needs to be completed under the condition that the head of the measured person is stable to avoid measurement errors caused by head shaking or angle deviation. However, the head shape and sitting posture of different measured persons are different, and how to quickly adjust the head position to adapt to the measurement device becomes an important prerequisite for improving the measurement efficiency and accuracy.

[0004] In the existing auxiliary devices for peripheral axial length measurement, the head support structure is mostly fixed or simple adjustment mode, and it is difficult to realize flexible and fine position and angle adjustment. Although some devices have basic adjustment function, the linkage of the adjustment assembly is poor, and it cannot be adapted to the head characteristics of the measured person, which leads to the small displacement of the head in the measurement process and affects the stability of the measurement data. At the same time, the relative position control between the head and the measurement device depends on the experience of the artificial, and the accuracy is insufficient, which is difficult to meet the demand of high-precision measurement in clinic. SUMMARY

[0005] In view of the problem that the head support structure of the peripheral axial length measurement auxiliary device in the prior art is difficult to adjust the position flexibly and finely, the purpose of the present application is to provide an eye biological parameter peripheral axial length auxiliary measurement device.

[0006] To solve the above problems, the present application adopts the following technical scheme:

[0007] An eye biological parameter peripheral axial length auxiliary measurement device, comprising a bottom plate, a measurement device main body is fixedly installed on the bottom plate, a measurement head is arranged on the measurement device main body, and a screen is arranged on the measurement device main body.

[0008] The bottom plate is provided with an adjustment assembly, the adjustment assembly comprises a movable block, and a head support is connected to the movable block through a connecting assembly.

[0009] The connecting assembly comprises a fixed column fixedly installed on the movable block, a sleeve slidingly installed on the fixed column, a head support rotatably installed on the sleeve, a first spring fixedly installed in the fixed column, a fixed block fixedly installed on the first spring, a fixed hole formed in the sleeve and matched with the fixed block, and a pressing block slidingly installed on the sleeve and matched with the fixed block.

[0010] The head support is provided with a rotating assembly, and the rotating assembly comprises an adjusting worm.

[0011] Optionally, the adjusting assembly comprises a movable groove formed in the bottom plate, the movable block is located in the movable groove and is in sliding connection with the inner wall of the movable groove, an adjusting screw rod penetrating through the bottom plate is rotatably installed in the movable groove, and a control end of the adjusting screw rod is located on one side of the screen.

[0012] Optionally, the rotating assembly comprises an adjusting tooth plate fixedly installed on the head support, a pair of toothed racks slidingly installed on the inner side of the bottom plate and meshed with the adjusting tooth plate, a connecting gear rotatably installed in the bottom plate and matched with the toothed racks, an adjusting gear fixedly installed on the connecting gear, a protective cover plate fixedly installed on the bottom plate and shielding the adjusting gear, and an adjusting worm rotatably installed on the protective cover plate and matched with the adjusting gear.

[0013] Optionally, the head support is provided with a fixing assembly, the fixing assembly comprises a pair of installation grooves formed in the head support, a rotating column rotatably installed in the installation groove, a second spring fixedly installed in the rotating column, a fixing strip fixedly installed on the second spring and used for abutting against the head of the person to be measured, and both ends of the fixing strip are in sliding connection with the inner wall of the rotating column.

[0014] Optionally, the head support is provided with a supporting pad, the supporting pad is hollow and has elasticity, and the head support is provided with a control assembly for controlling the deflation of the supporting pad.

[0015] Optionally, the control assembly comprises a pair of extension plates fixedly installed on the head support, the extension plates are provided with air bags, the air bags are jointly fixedly installed with air tubes, the air tubes are fixedly connected with the supporting pad and communicate with the supporting pad.

[0016] Optionally, the head support is provided with a cleaning assembly, the cleaning assembly comprises a first supporting block fixedly installed on the head support, a first winding roller rotatably installed on the first supporting block through a coil spring, a second supporting block fixedly installed on the head support, a second winding roller rotatably installed on the second supporting block through a coil spring, and a wiping cloth jointly wound on the first winding roller and the second winding roller, one end of a connecting rope is fixedly installed on the rotating column, and the other end of the connecting rope penetrating through the head support is fixedly installed on the first winding roller.

[0017] Optionally, an auxiliary assembly is arranged on the movable block, the auxiliary assembly comprises a sliding groove arranged on the movable block, a positioning plug rod is fixedly arranged in the sliding groove, a sealing plate is slidably arranged on the positioning plug rod, and a third spring is sleeved on the positioning plug rod.

[0018] Optionally, a storage cylinder is fixedly arranged on the movable block, an extrusion piston is slidably arranged in the storage cylinder, one end of a fourth spring is fixedly arranged on the extrusion piston, the other end of the fourth spring is fixedly connected with the inner wall of the storage cylinder, a dropper is fixedly arranged on the storage cylinder and communicates with the storage cylinder, and a protruding block matched with the extrusion piston is arranged on the sealing plate.

[0019] Optionally, lubricating oil is arranged in the storage cylinder, and the end of the dropper away from the storage cylinder is located directly above the adjusting screw.

[0020] Compared with the prior art, the technical scheme provided by the application has at least the following beneficial effects:

[0021] In the above scheme, the adjusting assembly can drive the movable block to move, thereby adjusting the position of the head support; in the connecting assembly, when the sleeve slides to a certain position along the fixed column, the first spring pushes the fixing block to be clamped into the fixing hole, thereby realizing the relative fixation of the sleeve and the fixed column, the pressing block can extrude the fixing block to compress the first spring, so that the fixing block is separated from the fixing hole, the head support can be quickly disassembled, the head support is rotatably arranged on the sleeve, and the angle of the head of the person to be measured can be flexibly adjusted by cooperating with the adjusting worm in the rotating assembly, so that the measuring head can be accurately aligned with the eyeball measuring part, the measurement error caused by the angle deviation is reduced, and the measurement accuracy is improved.

[0022] The movable groove provides a sliding track for the movable block, so that the movable block moves stably, and the adjusting screw penetrates through the bottom plate and cooperates with the movable block, so that when the control end of the adjusting screw is rotated, the adjusting screw drives the movable block to slide along the movable groove through thread transmission, thereby driving the head support to move as a whole, the distance between the head of the person to be measured and the measuring head is adjusted, the control end is located on one side of the screen, the measurer can observe the screen while operating the adjustment, the convenience and efficiency of the adjustment are improved, and the head is quickly adjusted to the appropriate measurement distance.

[0023] The angle adjustment of the head support is achieved by setting the rotating assembly through gear transmission, when the adjusting worm is rotated, the adjusting worm is engaged with the adjusting gear, the adjusting gear is driven to rotate, the connecting gear is synchronously rotated with the adjusting gear, the connecting gear is engaged with the rack, a pair of racks are driven to slide along the bottom plate, the rack is engaged with the adjusting tooth plate, the head support is rotated around the rotating point, the angle of the head is finely adjusted, the protective cover plate can shield the adjusting gear to prevent dust or foreign matters from entering to affect the transmission, meanwhile, the transmission of the worm and the gear has self-locking property, the angle of the head after adjustment can be stably maintained, the angle deviation in the measurement process is avoided, and the measurement accuracy is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art to make and use the application.

[0025] Figure 1 is a schematic view of the overall structure of the present application;

[0026] Figure 2 is a schematic view of the overall structure of the present application from another angle;

[0027] Figure 3 is a schematic view of the rotating assembly of the present application;

[0028] Figure 4 is a schematic view of the head support of the present application;

[0029] Figure 5 is a schematic view of the adjusting assembly of the present application;

[0030] Figure 6 is an enlarged view of A in the present application; Figure 5

[0031] Figure 7 is a schematic view of part of the auxiliary assembly of the present application;

[0032] Figure 8 is a schematic view of the control assembly of the present application;

[0033] Figure 9 is a schematic view of the fixing assembly of the present application.

[0034] REFERENCE NUMERALS

[0035] 10, bottom plate; 11, measurement device main body; 12, measurement head; 13, screen; 14, head support; 15, support pad;

[0036] 20, adjusting assembly; 21, movable groove; 22, movable block; 23, adjusting screw;

[0037] ​30, connecting assembly; 31, fixed column; 32, sleeve; 33, fixed block; 34, first spring; 35, pressing block; 36, fixed hole;

[0038] 40, rotating assembly; 41, adjusting tooth plate; 42, rack; 43, connecting gear; 44, adjusting gear; 45, protective cover plate; 46, adjusting worm;

[0039] 50, fixing assembly; 51, mounting groove; 52, rotating column; 53, fixed strip; 54, second spring;

[0040] 60, control assembly; 61, extension plate; 62, air bag; 63, air tube;

[0041] 70, cleaning assembly; 71, first supporting block; 72, first winding roller; 73, wiping cloth; 74, second supporting block; 75, second winding roller; 76, connecting rope;

[0042] 80, auxiliary assembly; 81, sliding groove; 82, sealing plate; 83, positioning plug; 84, third spring; 85, storage cylinder; 86, dropper; 87, extruding piston; 88, fourth spring; 89, protruding block.

[0043] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structures, devices and environments, and those skilled in the art can adjust or modify these devices and environments according to specific needs. DETAILED DESCRIPTION

[0044] The present application will be described in detail below with reference to the drawings and specific embodiments. It should be noted that in order to make the embodiments more detailed, the following embodiments are the best, preferred embodiments, and other alternative ways can also be implemented by those skilled in the art for some known technologies; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.

[0045] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the described embodiments can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it should be within the knowledge of those skilled in the art to realize this feature, structure or characteristic in combination with other embodiments (whether or not explicitly described).

[0046] Generally, the terminology can be understood at least in part based on usage in the context. For example, the term “one or more” as used herein, depending at least in part upon context, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures or characteristics in a plural sense. Additionally, the term, based, can be understood as not necessarily delimiting a set of exclusive factors, but, alternatively, at least in part depending on context, allowing for the existence of other factors not necessarily expressly described.

[0047] It will be understood that the terms “on,” “over,” and “above,” in the present application, should be interpreted in the broadest reasonable manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “over” or “above” not only means the meaning of being “over” or “above” something, but also can include the meaning of being “over” or “above” something with no intervening features or layers therebetween.

[0048] In addition, spatially relative terms, such as “beneath,” “below,” “lower,” “above,” “upper,” and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein can similarly be interpreted accordingly.

[0049] As shown in Figures 1 to 9 An embodiment of the present application provides an eyeball biological parameter peripheral axial length auxiliary measurement device, which comprises a bottom plate 10, a measurement device main body 11 fixedly installed on the bottom plate 10, a measurement head 12 arranged on the measurement device main body 11, a screen 13 arranged on the measurement device main body 11, an adjusting assembly 20 arranged on the bottom plate 10, the adjusting assembly 20 comprising a movable block 22, a head support 14 connected to the movable block 22 through a connecting assembly 30; the connecting assembly 30 comprising a fixed column 31 fixedly installed on the movable block 22, a sleeve 32 slidingly installed on the fixed column 31, the head support 14 being rotatably installed on the sleeve 32, a first spring 34 fixedly installed in the fixed column 31, a fixed block 33 fixedly installed on the first spring 34, a fixed hole 36 formed in the sleeve 32 and matched with the fixed block 33, and a pressing block 35 slidingly installed on the sleeve 32 and matched with the fixed block 33; the head support 14 being provided with a rotating assembly 40, and the rotating assembly 40 comprising an adjusting worm 46.

[0050] In use, the adjusting assembly 20 can drive the movable block 22 to move, thereby adjusting the position of the head support 14; in the connecting assembly 30, when the sleeve 32 slides along the fixed column 31 to a certain position, the first spring 34 pushes the fixed block 33 to be clamped into the fixed hole 36, thereby realizing the relative fixation of the sleeve 32 and the fixed column 31; the pressing block 35 can extrude the fixed block 33 to compress the first spring 34, so that the fixed block 33 is separated from the fixed hole 36, thereby facilitating the quick disassembly of the head support 14; meanwhile, the head support 14 is rotatably installed on the sleeve 32, and cooperates with the adjusting worm 46 in the rotating assembly 40, so that the angle of the head of the person to be measured can be flexibly adjusted, the measuring head 12 can be accurately aligned with the eyeball measuring part, the measurement error caused by the angle deviation is reduced, and the measurement accuracy is improved.

[0051] The adjusting assembly 20 comprises a movable groove 21 formed in the bottom plate 10, the movable block 22 is located in the movable groove 21 and is in sliding connection with the inner wall thereof, and the adjusting screw 23 penetrating through the bottom plate 10 is rotatably installed in the movable groove 21, and the control end of the adjusting screw 23 is located on one side of the screen 13. Specifically, the control end of the adjusting screw 23 can adopt a knob type.

[0052] The movable groove 21 provides a sliding track for the movable block 22, so that the movable block 22 moves stably; meanwhile, the adjusting screw 23 penetrates through the bottom plate 10 and cooperates with the movable block 22, so that when the control end of the adjusting screw 23 is rotated, the adjusting screw 23 drives the movable block 22 to slide along the movable groove 21 through threaded transmission, thereby driving the head support 14 to move as a whole, so as to adjust the distance between the head of the person to be measured and the measuring head 12; the control end is located on one side of the screen 13, so that the measurer can observe the screen 13 while operating the adjustment, thereby improving the convenience and efficiency of the adjustment and ensuring that the head is quickly adjusted to the appropriate measurement distance.

[0053] The movable groove 21 provides a sliding track for the movable block 22, so that the movable block 22 moves stably; meanwhile, the adjusting screw 23 penetrates through the bottom plate 10 and cooperates with the movable block 22, so that when the control end of the adjusting screw 23 is rotated, the adjusting screw 23 drives the movable block 22 to slide along the movable groove 21 through threaded transmission, thereby driving the head support 14 to move as a whole, so as to adjust the distance between the head of the person to be measured and the measuring head 12; the control end is located on one side of the screen 13, so that the measurer can observe the screen 13 while operating the adjustment, thereby improving the convenience and efficiency of the adjustment and ensuring that the head is quickly adjusted to the appropriate measurement distance.

[0054] The head support 14 is provided with a rotating assembly 40, and the measuring personnel can adjust the angle of the head of the person to be measured through the adjusting worm 46 included in the rotating assembly 40, so that the measurement accuracy can be more accurately controlled. The rotating assembly 40 includes an adjusting tooth plate 41 fixedly installed on the head support 14. A pair of gear racks 42 engaged with the adjusting tooth plate 41 are slidingly installed in the bottom plate 10. A connecting gear 43 matched with the gear racks 42 is rotatably installed in the bottom plate 10. An adjusting gear 44 is fixedly installed on the connecting gear 43. A protective cover plate 45 is fixedly installed on the bottom plate 10 and shields the adjusting gear 44. The adjusting worm 46 matched with the adjusting gear 44 is rotatably installed on the protective cover plate 45.

[0055] The rotating assembly 40 realizes the angle adjustment of the head support 14 through gear transmission. When the adjusting worm 46 is rotated, the adjusting worm 46 is engaged with the adjusting gear 44, the adjusting gear 44 is driven to rotate, the connecting gear 43 is synchronously rotated with the adjusting gear 44, the connecting gear 43 is engaged with the gear racks 42, a pair of gear racks 42 are driven to slide along the bottom plate 10, the gear racks 42 are engaged with the adjusting tooth plate 41, the head support 14 is rotated around the rotation point, the head angle is finely adjusted, the protective cover plate 45 can shield the adjusting gear 44, dust or foreign matters are prevented from entering to affect the transmission, the transmission of the worm and the gear has self-locking property, the head angle after adjustment can be stably maintained, the angle deviation in the measurement process is avoided, and the measurement accuracy is further improved.

[0056] The rotating assembly 40 realizes the angle adjustment of the head support 14 through gear transmission. When the adjusting worm 46 is rotated, the adjusting worm 46 is engaged with the adjusting gear 44, the adjusting gear 44 is driven to rotate, the connecting gear 43 is synchronously rotated with the adjusting gear 44, the connecting gear 43 is engaged with the gear racks 42, a pair of gear racks 42 are driven to slide along the bottom plate 10, the gear racks 42 are engaged with the adjusting tooth plate 41, the head support 14 is rotated around the rotation point, the head angle is finely adjusted, the protective cover plate 45 can shield the adjusting gear 44, dust or foreign matters are prevented from entering to affect the transmission, the transmission of the worm and the gear has self-locking property, the head angle after adjustment can be stably maintained, the angle deviation in the measurement process is avoided, and the measurement accuracy is further improved.

[0057] The head support 14 is provided with a fixing assembly 50. The fixing assembly 50 includes a pair of installation grooves 51 formed in the head support 14. A rotating column 52 is rotatably installed in the installation groove 51. A second spring 54 is fixedly installed in the rotating column 52. A fixing strip 53 for abutting against the head of the person to be measured is fixedly installed on the second spring 54. The two ends of the fixing strip 53 are slidingly connected with the inner wall of the rotating column 52. The head support 14 can be made of medical ABS plastic, and the fixing strip 53 can be made of medical elastic silica gel.

[0058] The second spring 54 is pulled to limit the fixed strip 53 in the rotating column 52 in the natural state, and when the head is placed in the head support 14, the second spring 54 is stretched and away from the rotating column 52 by pulling the fixed strip 53, then the rotating column 52 is rotated to move the fixed strip 53 to the back of the head of the person to be detected, the fixed strip 53 is loosened, the second spring 54 restores the elastic force to tightly abut the head, the head is fixed, and the detection accuracy is improved.

[0059] The head support 14 is provided with a support pad 15, the support pad 15 is provided with elasticity and is hollow, the head support 14 is provided with a control assembly 60 for controlling the deflation of the support pad 15, the control assembly 60 includes a pair of extension plates 61 fixedly installed on the head support 14, the extension plates 61 are provided with air bags 62, the air bags 62 are jointly and fixedly installed with air pipes 63, the air pipes 63 are fixedly connected with the support pad 15 and communicate with the support pad 15;

[0060] The extension plates 61 provide installation support for the air bags 62, when the rotating column 52 rotates to drive the fixed strip 53 to move to the back of the head of the person to be detected, the rotating column 52 will extrude the air bags 62, the gas in the air bags 62 flows into the hollow support pad 15 through the air pipes 63, the support pad 15 is inflated to increase the supporting force and the contact area of the head, when the rotating column 52 is reset to release the air bags 62, the gas in the support pad 15 flows back to the air bags 62 through the air pipes 63, the support pad 15 is contracted to reduce the supporting force, the air pipes 63 realize the gas circulation between the air bags 62 and the support pad 15, the deflation state of the support pad 15 can be conveniently controlled during the fixing process of the head, the head size and the supporting demand of different persons to be detected are adapted, and the flexibility and the comfort of use are improved.

[0061] The head support 14 is provided with a cleaning assembly 70, the cleaning assembly 70 includes a first support block 71 fixedly installed on the head support 14, the first support block 71 is rotatably installed with a first winding roller 72 through a coil spring, the head support 14 is fixedly installed with a second support block 74, the second support block 74 is rotatably installed with a second winding roller 75 through a coil spring, the first winding roller 72 and the second winding roller 75 are jointly wound with a wiping cloth 73, one end of a connecting rope 76 is fixedly installed on the rotating column 52, the other end of the connecting rope 76 away from the rotating column 52 penetrates through the head support 14 and is fixedly installed on the first winding roller 72;

[0062] The first supporting block 71 and the second supporting block 74 provide mounting supports for the first and second winding rollers 75 respectively, the winding spring provides the winding roller with a reset force, when the rotating column 52 rotates, the connecting rope 76 drives the first winding roller 72 to rotate and stretch the winding spring, the wiping cloth 73 is pulled out from the second winding roller 75 to wipe and clean the covered supporting pad 15, when the head is taken out, the rotating column 52 is reset, the winding spring drives the winding roller to rotate to re-wind the wiping cloth 73 for the next use, and the wiping cloth 73 at this time can avoid the dust in the air from adhering to the supporting pad 15, the assembly realizes automatic cleaning before and after measurement, keeps the head support 14 clean, and the winding spring ensures that the wiping cloth 73 is always tensioned to improve the cleaning effect.

[0063] The auxiliary assembly 80 is arranged on the movable block 22, the auxiliary assembly 80 comprises a sliding groove 81 arranged on the movable block 22, a positioning plug rod 83 fixedly installed in the sliding groove 81, a sealing plate 82 slidably installed on the positioning plug rod 83, and a third spring 84 sleeved on the positioning plug rod 83;

[0064] The sliding groove 81 provides a sliding space for the sealing plate 82, the positioning plug rod 83 limits the sliding direction of the sealing plate 82 to ensure stable movement, and the third spring 84 pushes the sealing plate 82 to adhere to the inner wall of the movable groove 21 in a natural state, thereby sealing the gap between the movable block 22 and the movable groove 21 to prevent dust and impurities from entering the movable groove 21 to affect the sliding and rotation of the adjusting assembly 20; when the movable groove 21 needs to be cleaned or the adjusting assembly 20 needs to be maintained, the sealing plate 82 can be pulled to compress the third spring 84, so that the sealing plate 82 is separated from the inner wall of the movable groove 21 to expose the gap for operation, the assembly improves the dustproof performance of the equipment, reduces the adjustment jam caused by impurities, and prolongs the service life of the equipment.

[0065] The movable block 22 is fixedly installed with a storage cylinder 85, the storage cylinder 85 is slidably installed with an extrusion piston 87, one end of the fourth spring 88 is fixedly installed on the extrusion piston 87, the other end of the fourth spring 88 is fixedly connected with the inner wall of the storage cylinder 85, the storage cylinder 85 is fixedly installed with a dropper 86 in communication with the storage cylinder 85, the sealing plate 82 is provided with a protruding block 89 matched with the extrusion piston 87, the storage cylinder 85 is provided with lubricating oil, and the end of the dropper 86 away from the storage cylinder 85 is located directly above the adjusting screw 23;

[0066] In normal state, the fourth spring 88 pushes the extrusion piston 87 to be away from the dropper 86, and the lubricating oil in the storage cylinder 85 does not flow out; when the sealing plate 82 of the auxiliary assembly 80 slides, the protrusion 89 on the sealing plate 82 pushes the extrusion piston 87, so that the extrusion piston 87 compresses the fourth spring 88 and moves to the direction of the dropper 86, extruding the lubricating oil in the storage cylinder 85, and the lubricating oil flows out through the dropper 86, and the flowing-out lubricating oil can be accurately dropped on the adjusting screw 23; when the sealing plate 82 resets, the protrusion 89 is separated from the extrusion piston 87, the fourth spring 88 pushes the extrusion piston 87 to reset, a negative pressure is formed in the storage cylinder 85, and the oil outflow is stopped, and the assembly realizes the on-demand release of the lubricating oil, and provides lubrication for the movement of the adjusting assembly 20.

[0067] The technical scheme provided by the application has the following working process:

[0068] The bottom plate 10 serves as a device foundation and supports the measuring device main body 11; the measuring head 12 on the measuring device main body 11 is used for collecting ocular axial length data of the eyeball periphery; and the screen 13 displays the measurement result; before measurement, the adjusting screw 23 of the adjusting assembly 20 is rotated to drive the movable block 22 to slide along the movable groove 21, so as to adjust the distance between the head support 14 and the measuring head 12; in the connecting assembly 30, the first spring 34 drives the fixed block 33 to be inserted into the fixed hole 36, so as to fix the sleeve 32; the adjusting worm 46 of the rotating assembly 40 is rotated to drive the adjusting gear 44 and the connecting gear 43 to rotate in turn, drive the rack 42 to slide, and drive the head support 14 to rotate through the meshing between the rack 42 and the adjusting tooth plate 41, so as to adjust the head angle.

[0069] After the head of the person to be measured is placed into the head support 14, the fixing strip 53 of the fixing assembly 50 is abutted against the head under the action of the second spring 54; the rotating column 52 is rotated to extrude the air bag 62, gas enters the supporting pad 15 through the air pipe 63, the supporting pad 15 is inflated to provide adaptive support, and the comfort is improved.

[0070] During the measurement process, when the head is placed in, the rotating column 52 pulls the connecting rope 76 to drive the first winding roller 72 to rotate, the wiping cloth 73 is pulled out from the second winding roller 75 to clean the contact part, after the head is taken out, the winding spring resets to wind the wiping cloth 73, when the movable block 22 moves, the sealing plate 82 of the auxiliary assembly 80 seals the gap of the movable groove 21 under the action of the third spring 84, dust is prevented, meanwhile, the protrusion 89 of the sealing plate 82 extrudes the extrusion piston 87 of the storage cylinder 85, so that the lubricating oil is dropped on the adjusting screw 23 through the dropper 86, and the friction is reduced.

[0071] The components work cooperatively to realize accurate adjustment of the head position and angle, ensure that the measuring head 12 is aligned with the eyeball, improve the comfort of the person to be measured, the equipment hygiene and the durability, and finally realize accurate measurement of the ocular axial length of the eyeball periphery.

[0072] The above description is only the preferred embodiment of the present application, it should be pointed out that for those skilled in the art, without departing from the principles of the present application, can make several improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An eyeball biological parameter peripheral ocular axial length auxiliary measuring device, comprising a base plate, a measuring device main body fixedly installed on the base plate, a measuring head arranged on the measuring device main body, and a screen arranged on the measuring device main body, characterized in that: the base plate is provided with an adjusting assembly, the adjusting assembly comprises a movable block and a movable slot formed in the base plate, the movable block is located in the movable slot and is in sliding connection with the inner wall of the movable slot, a adjusting screw rod penetrating through the base plate is rotatably installed in the movable slot, the control end of the adjusting screw rod is located on one side of the screen, and the movable block is connected with a head support through a connecting assembly; a rotating assembly is arranged on the head support, the rotating assembly comprises an adjusting tooth plate fixedly installed on the head support, a pair of tooth bars in meshing connection with the adjusting tooth plate are slidably installed on the inner side of the base plate, a connecting gear matched with the tooth bars is rotatably installed in the base plate, an adjusting gear is fixedly installed on the connecting gear, a protective cover plate for shielding the adjusting gear is fixedly installed on the base plate, and an adjusting worm matched with the adjusting gear is rotatably installed on the protective cover plate; a fixing assembly is arranged on the head support, the fixing assembly comprises a pair of installation slots formed in the head support, a rotating column is rotatably installed in the installation slot, a second spring is fixedly installed in the rotating column, a fixing strip for abutting against the head of a person to be measured is fixedly installed on the second spring, and the two ends of the fixing strip are in sliding connection with the inner wall of the rotating column; a supporting pad is arranged on the head support; a cleaning assembly is arranged on the head support, the cleaning assembly comprises a first supporting block fixedly installed on the head support, a first winding roller is rotatably installed on the first supporting block through a coil spring, a second supporting block is fixedly installed on the head support, a second winding roller is rotatably installed on the second supporting block through a coil spring, a wiping cloth is wound on the first winding roller and the second winding roller, one end of a connecting rope is fixedly installed on the rotating column, and the other end of the connecting rope away from the rotating column penetrates through the head support and is fixedly installed on the first winding roller. the connecting assembly comprises a fixed column fixedly installed on the movable block, a sleeve is slidably installed on the fixed column, the head support is rotatably installed on the sleeve, a first spring is fixedly installed in the fixed column, a fixed block is fixedly installed on the first spring, a fixed hole matched with the fixed block is formed in the sleeve, and a pressing block matched with the fixed block is slidably installed on the sleeve.

2. The ocular biometric para-central axial length auxiliary measurement device according to claim 1, wherein, the supporting pad is hollow and elastic, a control assembly for controlling the deflation of the supporting pad is arranged on the head support.

3. The ocular biometric parametric axial length assist measurement device of claim 1, wherein, the control assembly comprises a pair of extension plates fixedly installed on the head support, an air bag is arranged on the extension plate, an air pipe is fixedly installed on the air bag, the air pipe is fixedly connected with the supporting pad and communicates with the supporting pad.

4. The ocular biometric parametric axial length assist measurement device of claim 3, wherein, an auxiliary assembly is arranged on the movable block, the auxiliary assembly comprises a sliding slot formed in the movable block, a positioning plug rod is fixedly installed in the sliding slot, a sealing plate is slidably installed on the positioning plug rod, and a third spring is sleeved on the positioning plug rod.

5. The ocular biometric parametric axial length assist measurement device of claim 1, wherein, ​ 6. The ocular biometric para-central axial length auxiliary measurement device according to claim 5, wherein, The movable block is fixedly provided with a storage cylinder, a squeezing piston is slidably arranged in the storage cylinder, one end of a fourth spring is fixedly arranged on the squeezing piston, the other end of the fourth spring is fixedly connected with the inner wall of the storage cylinder, a dropper is fixedly arranged on the storage cylinder and communicates with the storage cylinder, and a convex block matched with the squeezing piston is arranged on the sealing plate.

7. The ocular biometric para-central axial length auxiliary measurement device according to claim 6, wherein, Lubricating oil is arranged in the storage cylinder, and the end of the dropper away from the storage cylinder is located directly above the adjusting screw.

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