Eye detection device

Abstract

The utility model discloses an eye detection device. The eye detection device comprises a shell, a detection component and a supporting mechanism. A containing space is defined in the shell. The detection part is arranged at one end of the shell along the first direction. The supporting mechanism and the detection part are arranged at the same end of the shell. The supporting mechanism is connected to the shell, the supporting mechanism extends in the axis direction of the supporting mechanism, partially extends out of the shell and can be supported on the face, and the supporting mechanism is configured to be movably arranged relative to the shell in the axis direction so as to adjust the length of the part, extending out of the shell, of the supporting mechanism. The supporting mechanism can provide supporting, the eye detection device can be prevented from shaking, shaking or shifting and other phenomena, and the detection precision of the eye detection device and the effectiveness of the detection result are improved. The distance between the eye detection device and the eyes of the user can be adjusted by adjusting the length of the part, extending out of the shell, of the supporting mechanism, the accuracy of the detection result is further improved, and the possibility of damaging the eyes of the user is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of ophthalmic devices, and particularly relates to an eye detection device. Background Art

[0002] With the increasing attention paid to eye health by people, more and more portable eye detection devices have emerged, such as portable tonometer and the like. With the popularization of portable eye detection devices, it has become more convenient for people to detect their eyes. Such eye detection devices mainly include two types: contact type and non-contact type. The contact type eye detection device uses a detection probe to contact the cornea to obtain detection data, and the non-contact type eye detection device uses an air pressure pulse to impact the cornea to obtain detection data. Users can hold the eye detection device to perform self-detection without having to frequently go back and forth to the hospital.

[0003] However, when such eye detection devices are detecting, they need to maintain relative stability with the user's eyes. If the eye detection device moves relative to the user's eyes during the measurement process, it will cause a significant decrease in the measurement accuracy of such devices or even directly lead to measurement failure. Summary of the Utility Model

[0004] An embodiment of the present application provides an eye detection device to improve the detection accuracy and the accuracy of the detection result, and reduce the possibility of damaging the user's eyes.

[0005] According to a first aspect of the present application, the present application provides an eye detection device. The eye detection device includes: a housing, an accommodation space is defined inside the housing; a detection component, disposed at one end of the housing along a first direction; and a support mechanism, the support mechanism and the detection component are disposed at the same end of the housing, the support mechanism is connected to the housing, the support mechanism extends along its own axis direction, and partially protrudes from the housing and can support on the face, the support mechanism is configured to be movably disposed relative to the housing along the axis direction to adjust the length of the part of the support mechanism protruding from the housing.

[0006] In some embodiments, the eye detection device further includes a connection mechanism, the connection mechanism is fixedly disposed inside the accommodation space and is fixedly disposed relative to the housing; the support mechanism is configured to be rotatably disposed relative to the connection mechanism around its own axis.

[0007] In some embodiments, the support mechanism includes a support rod, a part of the support rod along the axis direction protrudes from the housing, the inside of the support rod is a hollow structure to form an accommodation cavity, and an inner thread is provided on a first inner peripheral wall of the support rod facing the accommodation cavity; the connection mechanism includes a screw rod, an external thread is provided on the screw rod, and the screw rod is inserted into the accommodation cavity and is threadedly connected to the support rod.

[0008] In some embodiments, the shell has a top shell at the end along the first direction, and the shell also includes a lower extension shell, which extends from the top shell along a direction parallel to the axial direction toward the inside of the accommodating space, and the lower extension shell is fixedly connected to the connecting mechanism, and the lower extension shell, the connecting mechanism and the top shell together define the installation space of the support mechanism.

[0009] In some embodiments, the connecting mechanism includes a base, the base includes a bottom wall, and the lower extended shell abuts against the bottom wall; the base includes a recess, the recess is recessed from the bottom wall along the axial direction toward the direction away from the top shell, and the distal end of the screw is fixedly set in the recess.

[0010] In some embodiments, the lower extension shell has an outer protrusion at the far end away from the top shell, and a first connecting hole is provided inside the outer protrusion, and the first connecting hole passes through the end of the outer protrusion away from the top shell along the axial direction; the base is provided with a mounting portion, which is sleeved on the outside of the outer protrusion and matches the shape of the outer protrusion, and a second connecting hole is provided at a position on the bottom wall corresponding to the first connecting hole; the base and the lower extension shell are connected by fasteners passing through the first connecting hole and the second connecting hole.

[0011] In some embodiments, the eye detection device also includes a rotation prompt mechanism, which includes a clip, a slot and a rod sleeve, one of the clip and the slot is arranged on the outer surface of the rod sleeve, and the other is arranged separately from the rod sleeve, the rod sleeve is arranged on the outside of the support rod, and is arranged to rotate synchronously with the support mechanism; the clip is connected to the top shell, and is configured to be removably clamped in the slot after the support mechanism rotates around its own axis by a preset angle.

[0012] In some embodiments, the rod sleeve is sleeved on the outside of the support rod, and in the axial direction, the two ends of the rod sleeve are respectively abutted against the connecting mechanism and the top shell; the clamping groove is arranged on the second outer peripheral wall of the rod sleeve away from the support rod.

[0013] In some embodiments, the support rod includes a main body and a flange, the main body includes a proximal end extending from the top shell and a distal end arranged opposite to the proximal end, and the flange is arranged at the distal end and surrounds the main body; the flange abuts against the rod sleeve along the radial direction of the support mechanism, the flange includes a third outer peripheral wall facing the rod sleeve, and the rod sleeve includes a second inner peripheral wall facing the support rod, and the third outer peripheral wall matches and is connected to the second inner peripheral wall in shape.

[0014] In some embodiments, the top shell includes a downward extension mounting portion, which extends from the top shell toward the connecting mechanism along the axial direction of the supporting mechanism, and the clamping piece is arranged on the downward extension mounting portion; the downward extension shell and the downward extension mounting portion are both arranged on the outer periphery of the rod sleeve and jointly limit the radial space of the rod sleeve.

[0015] In some embodiments, a receiving portion is defined within the downwardly extending mounting portion. A first opening is provided on the side of the receiving portion facing the rod sleeve. The clamping member is disposed within the receiving portion and is exposed outside the downwardly extending mounting portion through the first opening.

[0016] In some embodiments, the rotation prompting mechanism further includes an elastic member. The elastic member is disposed within the receiving portion, and the clamping member is disposed between the card slot and the elastic member. Two ends of the elastic member are respectively connected to the clamping member and the downwardly extending mounting portion.

[0017] In some embodiments, the downwardly extending mounting portion is made of an elastic rigid material. One end of the downwardly extending mounting portion is fixedly connected to the top housing, and the other end is a suspended end. The clamping member is fixed to the suspended end and is disposed opposite to the card slot of the rod sleeve in the radial direction.

[0018] In some embodiments, the connecting mechanism includes a base. The base includes a bottom wall, and the downwardly extending housing abuts against the bottom wall. The base includes a first side wall and a second side wall. The downwardly extending housing abuts against the inner surface of the first side wall, and the installation space of the rod sleeve is enclosed by the downwardly extending housing and the second side wall.

[0019] In some embodiments, the number of card slots is multiple. The multiple card slots are evenly spaced circumferentially along the second outer peripheral wall of the rod sleeve, and each card slot is a strip-shaped slot extending in the axial direction; and / or, the support rod includes a first outer peripheral wall facing away from the accommodation cavity. At least a part of the first outer peripheral wall is outside the top housing. The first outer peripheral wall is provided with scale lines extending in the axial direction, and the scale lines have a minimum unit scale value. The ratio between the pitch of the external thread of the screw and the number of card slots is the minimum unit scale value.

[0020] In some embodiments, the included angle between the axial direction of the support mechanism and the first direction is 0° to 45°; and / or, the number of support mechanisms is at least two. At least two support mechanisms are symmetrically disposed on both sides of the detection component along the second direction, and the first direction and the second direction intersect.

[0021] The eye detection device provided by the embodiments of the present application includes a top housing and a support mechanism. A part of the support mechanism extends out of the top housing along its own axial direction. During measurement, the support mechanism can support on the face, thereby providing support for the entire eye detection device, preventing the eye detection device from shaking due to the user's hand tremor, and facilitating the detection component of the eye detection device to accurately align with the user's eyes. Moreover, the support mechanism can move relative to the top housing along the axial direction, thereby adjusting the length of the support mechanism extending out of the top housing. That is to say, the distance between the detection component of the eye detection device and the user's eyes can be adjusted. For different users, the eye detection device can detect at the optimal position, improving the accuracy of the detection result and reducing the possibility of damaging the user's eyes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments of the present application. Obviously, the following described drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic cross-sectional structure diagram of an eye detection device provided by some embodiments of the present application.

[0024] Figure 2 is Figure 1 A schematic exploded structure diagram of a part of the eye detection device shown.

[0025] Figure 3 is Figure 1 A schematic cross-sectional structure diagram of a part of the eye detection device shown.

[0026] Figure 4 is Figure 3 An enlarged structure diagram of area A in.

[0027] Figure 5 is Figure 1 A schematic structure diagram of the base of the eye detection device shown.

[0028] Figure 6 is Figure 1 A schematic structure diagram of a part of the eye detection device shown.

[0029] Figure 7 is Figure 1 Another schematic structure diagram of a part of the eye detection device shown.

[0030] In the drawings:

[0031] Marking name

[0032] Eye detection device 100, housing 10, downward-extending housing 12, first connection hole 121, outward convex portion 122, columnar cavity 13, second opening 131, peripheral housing 15, top housing 16, accommodation space 17, support mechanism 20, support rod 21, accommodation cavity 211, proximal end 211a, distal end 211b, first inner peripheral wall 212, internal thread 213, first outer peripheral wall 214, body portion 215, flange 216, third outer peripheral wall 2161, support head 22, scale line 23, detection component 30, connection mechanism 40, screw 41, external thread 411, base 42, concave portion 421, bottom wall 422, second connection hole 423, first side wall 432, second side wall 434, mounting portion 436, mounting space 438, fastener 45, rotation prompting mechanism 50, clamping member 51, card slot 52, rod sleeve 53, second outer peripheral wall 531, second inner peripheral wall 532, elastic member 54, downward-extending mounting portion 55, accommodation portion 552, bottom wall 555, axis a, axis direction X, first direction Y, second direction Z. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

[0034] Unless otherwise defined, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those skilled in the technical field to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present application or the above drawings are used to distinguish different objects and are not used to describe a specific order or primary-secondary relationship.

[0035] Referring to "embodiments" in the present application means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0036] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "linked", and "attached" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0037] In the present application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the present application, the character " / " generally represents an "or" relationship between the associated objects before and after.

[0038] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width, etc. of the integrated device are only illustrative descriptions and should not constitute any limitation to the present application.

[0039] The term "a plurality of" appearing in the present application refers to two or more (including two).

[0040] In the embodiments of the present application, "parallel" includes not only the case of absolute parallelism, but also the case of approximately parallelism commonly recognized in engineering; at the same time, "perpendicular" also includes not only the case of absolute perpendicularity, but also the case of approximately perpendicularity commonly recognized in engineering.

[0041] With the increasing attention to eye health, more and more portable eye detection devices have emerged, such as portable tonometers, etc. Such eye detection devices mainly include two types: contact type and non-contact type. The contact type eye detection device uses a detection probe to contact the cornea to obtain detection data, and the non-contact type eye detection device uses an air pressure pulse to impact the cornea to obtain detection data.

[0042] In recent years, with the development of technology, handheld rebound tonometers, handheld non-contact tonometers, etc. have been invented. With the popularization of such portable tonometers, it has become more and more convenient to measure intraocular pressure. However, when measuring intraocular pressure with such tonometers, it is necessary to keep relatively stable with respect to the patient's eyes. If the user's hand shakes due to the lack of a support point during the measurement, resulting in relative movement of the tonometer with respect to the patient's eyes, it will cause a significant decrease in measurement accuracy or directly lead to measurement failure.

[0043] In addition, the rebound tonometer measures the intraocular pressure of the patient's eye by colliding the probe with the cornea of the eye to form a depression. When in use, the rebound tonometer is set in front of the user's eye, at a specific distance from the user's cornea. In actual measurement, there are clear requirements for the alignment of the rebound tonometer relative to the cornea. Ideally, the direction of the tonometer probe coincides with the normal of the cornea. In addition, the measurement position also affects the accuracy of the measurement results. If the rebound tonometer is too far away from the cornea, the measurement result may be inaccurate or not measured at all; if it is too close to the cornea, it may cause unnecessary damage to the cornea when it hits the cornea. In the above cases, the measurement results obtained are unreliable or wrong.

[0044] In view of this, the embodiment of the present application provides a technical solution for an eye detection device, which provides support for the entire eye detection device by setting a support mechanism, a part of which extends out of one end of the housing and can be supported on the user's face, thereby preventing the eye detection device from shaking, swaying or offsetting, and improving the detection accuracy of the eye detection device and the effectiveness of the detection results. The support mechanism can move relative to the top shell along the axial direction, thereby adjusting the length of the part of the support mechanism extending out of the top shell, that is, the distance between the eye detection device and the user's eyes can be adjusted, and the eye detection device can always detect the eyes of different users at the best position, further improving the accuracy of the detection results and reducing the possibility of damaging the user's eyes.

[0045] The technical solution provided in the embodiments of the present application is applicable to various types of eye detection devices, including but not limited to intraocular pressure detection devices, such as handheld rebound tonometer, non-contact tonometer, etc.

[0046] Figure 1 is a schematic cross-sectional view of an eye detection device provided in some embodiments of the present application, referring to Figure 1 The eye detection device 100 provided in the embodiment of the present application includes a housing 10, a detection component 30 and a support mechanism 20. The interior of the housing 10 defines a accommodating space 17. The detection component 30 is disposed at one end of the housing 10 along the first direction Y. The support mechanism 20 and the detection component 30 are disposed at the same end of the housing 10. The support mechanism 20 is connected to the housing 10, and the support mechanism 20 extends along its own axial direction X, and partially extends out of the housing 10 and can be supported on the face. The support mechanism 20 is configured to be movably arranged relative to the housing 10 along its own axial direction X to adjust the length of the portion of the support mechanism 20 extending out of the housing 10.

[0047] The housing 10 has a top shell 16 at one end along the first direction Y. The housing 10 further includes a peripheral shell 15 . The peripheral shell 15 is connected to the top shell 16 , and together they define a receiving space 17 .

[0048] The detection component 30 extends along the first direction Y and is disposed at the end of the housing 10. The first direction Y is arranged at an acute angle with the axis direction X of the support mechanism 20 to improve the support stability. The support mechanism 20 can make the housing 10 and the user's face spaced at an appropriate distance, so that the detection component 30 can perform the detection operation.

[0049] Optionally, the support mechanism 20 is operable to move inward and outward relative to the housing 10 along its own axial direction X. In other words, the support mechanism 20 can move under the operation of the user. Alternatively, the support mechanism 20 can also be controlled to move relative to the housing 10 along its own axial direction X. In other words, the support mechanism 20 can also move under the control of the control mechanism. For example, the support mechanism 20 can move outward relative to the housing 10 along its own axial direction X to extend the length of the portion of the support mechanism 20 extending from the housing 10; the support mechanism 20 can also move inward relative to the housing 10 along the axial direction X to shorten the length of the portion of the support mechanism 20 extending from the housing 10.

[0050] Another portion of the support mechanism 20 along its own axial direction X is located in the accommodation space 17 inside the housing 10 to facilitate connection with the housing 10 .

[0051] The eye detection device 100 provided in the embodiment of the present application includes a housing 10, a detection component 30 and a support mechanism 20. During measurement, a portion of the support mechanism 20 extending from one end of the housing 10 can be supported on the user's face, thereby providing support for the entire eye detection device 100, and preventing the eye detection device 100 from shaking, swaying or offsetting, thereby improving the detection accuracy of the eye detection device 100 and the validity of the detection results. The support mechanism 20 can move relative to the housing 10 along the axial direction X, thereby adjusting the length of the portion of the support mechanism 20 extending from the housing 10, that is, the distance between the eye detection device 100 and the user's eyes can be adjusted. The eye detection device 100 can always detect the eyes of different users at the best position, further improving the accuracy of the detection results and reducing the possibility of damaging the user's eyes.

[0052] Figure 2 yes Figure 1 A schematic diagram of the exploded structure of a part of the structure of the eye detection device shown in FIG. Figure 3 yes Figure 1 The schematic cross-sectional structure diagram of a partial structure of the eye detection device shown. Figure 2 and Figure 3 In some embodiments, the eye detection device 100 further includes a connection mechanism 40, which is fixedly disposed inside the accommodating space 17 and fixedly disposed relative to the housing 10. The support mechanism 20 is configured to be rotatable relative to the connection mechanism 40 around its own axis a.

[0053] The connecting mechanism 40 and the housing 10 are relatively fixed, and the connecting mechanism 40 will not move relative to the housing 10 under the action of external force. The support mechanism 20 can move along its own axis direction X relative to the housing 10 and the connecting mechanism 40, that is, an axial displacement is generated. Exemplarily, when the support mechanism 20 rotates clockwise around its own axis a, the support mechanism 20 moves outward along its own axis direction X relative to the housing 10 and the connecting mechanism 40, increasing the length of the part of the support mechanism 20 extending out of the housing 10; when the support mechanism 20 rotates counterclockwise around its own axis a, the support mechanism 20 moves inward along its own axis direction X relative to the housing 10 and the connecting mechanism 40, reducing the length of the part of the support mechanism 20 extending out of the housing 10.

[0054] Optionally, the connecting mechanism 40 can be fixedly connected to the housing 10 by suitable means such as screw connection and snap connection. In use, after the support mechanism 20 contacts the user's face, if the distance between the eye detection device 100 and the user's eyes is inappropriate (for example, too close or too far), the support mechanism 20 can be manually rotated to adjust the length of the part of the support mechanism 20 extending out of the housing 10, so that the distance between the eye detection device 100 and the user's eyes is optimal. The structure and adjustment method of the embodiment of the present application are very simple, easy to use, and have a low cost, improving the practicability and convenience of the eye detection device 100 and reducing its cost.

[0055] Figure 4 is Figure 3 The enlarged structural schematic diagram of area A in. In some embodiments, referring to Figures 2 to 4 , the support mechanism 20 includes a support rod 21, and a part of the support rod 21 along the axis direction X extends out of the housing 10. The inside of the support rod 21 is a hollow structure, forming a receiving cavity 211. The first inner peripheral wall 212 of the support rod 21 facing the receiving cavity 211 is provided with an internal thread 213. The connecting mechanism 40 includes a screw rod 41, the screw rod 41 is provided with an external thread 411, and the screw rod 41 is inserted into the receiving cavity 211 and is threadedly connected to the support rod 21.

[0056] Optionally, part of the section of the first inner peripheral wall 212 along the axis direction X is provided with an internal thread 213. Exemplarily, the support rod 21 can include a first end located outside the housing 10 and a second end located inside the housing 10. Part of the section of the first inner peripheral wall 212 along the axis direction X adjacent to the second end and close to the screw rod 41 is provided with an internal thread 213, and the section of the first inner peripheral wall 212 along the axis direction X adjacent to the first end is not provided with an internal thread 213. Alternatively, the internal thread 213 can also be provided on the entire first inner peripheral wall 212.

[0057] The support rod 21 and the screw 41 are threadedly connected through the engagement of the internal thread 213 and the external thread 411. The shapes of the internal thread 213 and the external thread 411 match. Exemplarily, both the internal thread 213 and the external thread 411 can be trapezoidal threads, rectangular threads, triangular threads, etc. Optionally, the external thread 411 can be a continuous thread or an intermittent thread.

[0058] In the embodiment of the present application, the threaded connection between the support mechanism 20 and the connection mechanism 40 is realized by the support rod 21 provided with the internal thread 213 and the screw 41 provided with the external thread 411, the structure is simpler, and the connection is more reliable.

[0059] The following introduces the fixation and installation of the support mechanism 20 in the accommodation space 17.

[0060] One end of the housing 10 along the first direction Y has a top housing 16. The housing 10 further includes a downwardly extending housing 12, which extends from the top housing 16 into the accommodation space 17 along a direction parallel to the self-axis direction X of the support mechanism 20. The downwardly extending housing 12 is fixedly connected to the connection mechanism 40, and the downwardly extending housing 12, the connection mechanism 40 and the top housing 16 together define the installation space of the support mechanism 20.

[0061] In some embodiments, the connection mechanism 40 includes a base 42. Figure 5 Yes Figure 1 Schematic diagram of the structure of the base of the eye detection device shown, refer to Figure 2 , Figure 3 And Figure 5 , Figure 7 , the base 42 includes a bottom wall 422, and the downwardly extending housing 12 abuts against the bottom wall 422. The base 42 includes a recess 421, which is recessed from the bottom wall 422 in the axial direction X away from the top housing 16, so that the recess 421 is located on the self-axis direction X of the support mechanism 20, and the distal end of the screw 41 is fixedly arranged in the recess 421, so that the screw 41 is fixedly connected to the base 42. Thus, the base 42 is fixedly connected to the top housing 16 through the downwardly extending housing 12 and fixedly supports the screw 41.

[0062] The base 42 and the screw 41 can be integrally formed or connected by suitable means such as welding, plugging, clamping, screw connection, etc. The screw 41 can be inserted and connected to the recess 421 of the bottom wall 422.

[0063] In one embodiment, as Figure 5 shown, the base 42 further includes a first side wall 432 and a second side wall 434, which together with the bottom wall 422 form an installation space 438. The recess 421 extends downward from the bottom wall 422 along the self-axis direction X of the support mechanism 20, and the distal end of the screw 41 is fixedly connected to the recess 421.

[0064] The connection mechanism 40 is fixed relative to the top shell 16 through the base 42, for example, by screw connection, clamping, riveting, etc. For example, in one embodiment, the specific connection between the connection mechanism 40 and the top shell 16 is achieved in the following manner.

[0065] The lower extension housing 12 abuts against the inner surface of the first side wall 432. The lower extension housing 12 extends downward from the top housing 16 and abuts against the bottom wall 422 of the base 42, thereby defining the installation height of the support mechanism 20 in the accommodating space 17.

[0066] The base 42 of the connecting mechanism 40 is connected to the lower extension housing 12 by threads. Figure 2 , Figure 3 , Figures 5 to 7 The lower extension shell 12 has an outer protrusion 122 at the far end away from the top shell 16, and a first connection hole 121 is provided inside the outer protrusion 122. The first connection hole 121 penetrates the end of the outer protrusion 122 away from the top shell along the axial direction X. The base 42 is provided with a mounting portion 436, which is sleeved on the outer side of the outer protrusion 122 and matches the shape of the outer protrusion 122. The second connection hole 423 is provided at the position of the bottom wall 422 corresponding to the first connection hole 121. The base 42 and the lower extension shell 12 are connected by a fastener 45 that penetrates the second connection hole 423 and the first connection hole 121.

[0067] The outer protrusion 122 is provided with a first connection hole 121 in the direction from the distal end to the proximal end. Correspondingly, the first side wall 432 of the base 42 is provided with a mounting portion 436 away from the axis a, the mounting portion 436 is sleeved on the outer side of the outer protrusion 122 and matches the shape of the outer protrusion 122, and a second connection hole 423 (such as Figure 2 As shown). Thus, the base 42 and the lower extension shell 12 are threadedly connected through the fastener 45 that penetrates the second connection hole 423 and the first connection hole 121 of the outer protrusion 122.

[0068] Those skilled in the art can understand that the screw rod 41 and the support rod 21 are arranged in the installation space formed by the top shell 16, the base 42 and the lower extension shell 12. Since the three are fixedly connected, the height of the installation space remains unchanged. The screw rod 41 is fixed, and the screw rod 41 and the support rod 21 rotate relative to each other, resulting in a change in the relative position of the two in the axial direction X of the support mechanism 20.

[0069] When the user uses the tonometer for positioning and alignment, the eye is kept horizontal with the detection component 30, and at the same time, the support mechanism 20 is manually adjusted to adjust the distance between the eye and the detection component 30. At this time, the user cannot check the degree of manual adjustment at any time. In order to improve the user experience, the eye detection device 100 of the present application further provides a rotation prompt mechanism 50 for prompting the user to adjust the length through a prompt sound.

[0070] In some embodiments, referring to Figure 3 , the rotation prompt mechanism 50 includes a clamping member 51, a clamping groove 52, and a rod sleeve 53. One of the clamping member 51 and the clamping groove 52 is provided on the outer surface of the rod sleeve 53, and the other is separately provided from the rod sleeve 53.

[0071] The rod sleeve 53 is sleeved outside the support rod 21 and is configured to rotate synchronously with the support rod 21 around the axis a of the support mechanism 20. Both ends of the rod sleeve 53 in the axial direction X of the support mechanism 20 abut against the top shell 16 and the base 42 respectively. In other words, in the direction perpendicular to the axial direction X, the rod sleeve 53 is arranged between the support rod 21 and the lower extension shell 12.

[0072] In the axial direction X, the rod sleeve 53 is restricted between the top shell 16 and the bottom wall 422 of the base 42, preventing the rod sleeve 53 from axially moving relative to the connection mechanism 40 and the top shell 16, and realizing the relative fixation of the position of the rod sleeve 53 with respect to the connection mechanism 40 and the top shell 16. The rod sleeve 53 abuts against the bottom wall 422 of the base 42, and the bottom wall 422 can limit the rod sleeve 53 in the radial direction, improving the stability of the rod sleeve 53.

[0073] One of the clamping member 51 and the clamping groove 52 is provided on the outer surface of the rod sleeve 53 and rotates synchronously with the support mechanism 20. The clamping member 51 is connected to the top shell 16 and is configured to be removably clamped in the clamping groove 52 after the support mechanism 20 rotates around the axis a by a preset angle. The other of the clamping member 51 and the clamping groove 52 is separately provided from the rod sleeve 53 and does not rotate with the support mechanism 20.

[0074] The clamping member 51 being removably clamped in the clamping groove 52 means that the clamping member 51 can be clamped in the clamping groove 52 and can be removed from the clamping groove 52. When the support mechanism 20 rotates to make the clamping member 51 opposite to the clamping groove 52, the clamping member 51 is clamped in the clamping groove 52, and as the support mechanism 20 continues to rotate, the clamping member 51 can be removed from the clamping groove 52.

[0075] The above preset angle can be matched with the number of card slots 52. In one example, there can be one card slot 52. Each time the support mechanism 20 rotates one circle, that is, each time the support mechanism 20 rotates 360°, the clamping member 51 is clamped with the card slot 52 once. In another example, there can be n card slots 52, where n is greater than or equal to 2, and the n card slots 52 are equally spaced along the circumferential direction of the support mechanism 20. Each time the support mechanism 20 rotates an angle of 360° / n, it is clamped with one of the card slots 52 once.

[0076] The cooperation between the clamping member 51 and the card slot 52 can generate an obvious gearshift feeling and a "click" sound, so as to clearly feedback the adjusted length of the support mechanism 20, further improving the user experience and feel.

[0077] In a specific embodiment, referring to Figures 2 to 4 , the rod sleeve 53 is sleeved outside the support rod 21 and is located radially outside a partial section of the support rod 21. In the axial direction X, the rod sleeve 53 is fixedly arranged relative to the connecting mechanism 40 and the top housing 16. The card slot 52 is arranged on the second outer peripheral wall 531 of the rod sleeve 53 facing away from the support rod 21. The rod sleeve 53 is arranged within the area jointly defined by the top housing 16, the bottom wall 422 of the connecting mechanism 40, and the downward extension housing 12.

[0078] Both ends of the rod sleeve 53 in the axial direction are open, and the support rod 21 and the screw rod 41 are respectively inserted into the rod sleeve 53 from both ends of the rod sleeve 53 in the axial direction. The rod sleeve 53 is in form-fit connection with the support rod 21 to rotate synchronously with the support rod 21. The form-fit connection referred to in the embodiments of the present application means that the shapes match and are connected. The support rod 21 can move in the axial direction X during rotation. Therefore, the support rod 21 can move relative to the rod sleeve 53 in the axial direction X.

[0079] In the axial direction X, the rod sleeve 53 is fixed relative to the connecting mechanism 40 and the top housing 16. In other words, the rod sleeve 53 can only rotate driven by the support mechanism 20 and cannot move relative to the connecting mechanism 40 and the top housing 16 in the axial direction X. That is, during the rotation of the rod sleeve 53 driven by the support mechanism 20, the rod sleeve 53 does not generate displacement in the axial direction X.

[0080] The card slot 52 is provided on the second outer peripheral wall 531 of the rod sleeve 53, facilitating the movable clamping connection with the clamping member 51, including clamping in and out. The rod sleeve 53 can be made of plastic material, facilitating the formation of structures such as the card slot 52. Since the support mechanism 20 rotates relative to the top housing 16 and also moves along the axial direction X relative to the top housing 16, the movement of the support mechanism 20 is relatively complex. If the card slot 52 is directly provided on the support mechanism 20, it is difficult to determine the position of the card slot 52, and it is difficult to ensure that the clamping member 51 can be accurately clamped in the card slot 52, with a relatively large design difficulty. Therefore, the embodiment of the present application solves the above problems by providing the rod sleeve 53. On the one hand, the cooperation between the clamping member 51 and the support mechanism 20 can be converted into the cooperation between the clamping member 51 and the rod sleeve 53. The rod sleeve 53 only rotates relative to the top housing 16 and cannot have axial displacement, and the movement mode is relatively single, facilitating the determination of the position of the card slot 52. On the other hand, the rod sleeve 53 rotates synchronously with the support mechanism 20, and the cooperation between the clamping member 51 and the card slot 52 can accurately reflect the rotation angle of the support mechanism 20, with relatively high precision.

[0081] In some embodiments, referring to Figure 2 and Figure 3 , the rotation prompting mechanism 50 further includes a downward extension mounting portion 55, and the downward extension mounting portion 55 extends along the axial direction X of the support mechanism 20 from the top housing 16 towards the connection mechanism 40. The clamping member 51 is provided on the downward extension mounting portion 55. The downward extension housing 12 and the downward extension mounting portion 55 are both provided on the outer periphery of the rod sleeve 53 and jointly define the radial space of the rod sleeve 53.

[0082] The clamping member 51 is fixedly or movably connected to the top housing 16 through the downward extension mounting portion 55.

[0083] In one example, the downward extension mounting portion 55 and the downward extension housing 12 are arranged along the outer periphery of the rod sleeve 53 and jointly define the radial space of the rod sleeve 53, ensuring that the rod sleeve 53 will not have radial shaking during operation.

[0084] A receiving portion 552 is defined within the downward extension mounting portion 55. A first opening is provided on the side of the receiving portion 552 facing the rod sleeve 53. The clamping member 51 is disposed within the receiving portion 552 and is exposed outside the downward extension mounting portion 55 through the first opening.

[0085] The rotation prompting mechanism 50 further includes an elastic member 54. The elastic member 54 is disposed inside the receiving portion 552. The clamping member 51 is disposed between the card slot 52 and the elastic member 54, for applying an elastic force to the clamping member 51 in a direction perpendicular to the axial direction X.

[0086] The accommodating portion 552 includes a bottom wall 555 disposed opposite to the first opening, and two ends of the elastic member 54 are respectively connected to the engaging member 51 and the bottom wall 555. Preferably, the two ends of the elastic member 54 are respectively connected to the engaging member 51 and the bottom wall 555 in a manner of abutting, bonding or other suitable ways.

[0087] The first opening is radially opposite to the rod sleeve 53. The engaging member 51 within the accommodating portion 552 can be exposed outside the downward extension mounting portion 55 through the first opening and is radially opposite to the rod sleeve 53. The elastic member 54 can generate an elastic thrust force on the engaging member 51 facing the rod sleeve 53.

[0088] Due to the form-fit connection between the flange 216 and the rod sleeve 53, the rod sleeve 53 can rotate with the support rod 21. When one of the card slots 52 is radially opposite to the engaging member 51, the engaging member 51 moves towards the card slot 52 under the elastic thrust force of the elastic member 54 and enters the card slot 52. When the engaging member 51 moves out of the card slot 52, under the abutting action of the second outer peripheral wall 531 of the rod sleeve 53, the engaging member 51 presses the elastic member 54 and moves towards the inside of the accommodating portion 552 until the engaging member 51 is radially opposite to the card slot 52 again or is radially opposite to another card slot 52, and the engaging member 51 enters the card slot 52 again under the elastic thrust force of the elastic member 54.

[0089] Exemplarily, the elastic member 54 is a spring, and the engaging member 51 has a convex surface facing away from the elastic member 54. For example, the engaging member 51 is a sphere with an outer spherical surface, which is convenient for entering / removing from the card slot 52 and can also reduce the friction force between the engaging member 51 and the rod sleeve 53. Those skilled in the art can understand that in this embodiment, the downward extension mounting portion 55 is made of an inelastic material and can be integrally formed with the top housing 16.

[0090] In an alternative embodiment of the rotation prompting mechanism 50, the difference from the above embodiment is that the downward extension mounting portion 55 is made of an elastic hard material, and the engaging member 51 is fixed within the accommodating portion 552 of the downward extension mounting portion 55. By utilizing the elastic swing of the downward extension mounting portion 55 in the radial direction, the engaging member 51 is enabled to enter / remove from the card slot 52.

[0091] In an alternative embodiment of the rotation prompting mechanism 50, the difference from the above embodiment is that the downward extension mounting portion 55 is made of an elastic hard material and does not provide Figure 3 the shown accommodating portion 552. Instead of the design of the accommodating portion 552, the downward extension mounting portion 55 of this alternative embodiment is an elastic arm, one end of which is fixedly connected to the top housing 16, the other end is a suspended end, the engaging member 51 is fixed to the suspended end of the elastic arm and is radially opposite to the card slot 52 of the rod sleeve 53. During the rotation of the support mechanism 20, the elastic swing of the elastic arm in the radial direction can enable the engaging member 51 to be selectively engaged in the card slot 52 or removed from the card slot 52.

[0092] In some embodiments, the base 42 includes a first side wall 432 and a second side wall 434. The downwardly extending housing 12 abuts against the inner surface of the first side wall 432, and the installation space of the rod sleeve 53 is enclosed by the downwardly extending housing 12 and the second side wall 434.

[0093] Optionally, the downwardly extending housing 12 may be a hollow semi-cylindrical body. Both the first side wall 432 and the second side wall 434 are formed in the shape of a hollow semi-cylindrical body. The inner diameter of the cylinder corresponding to the first side wall 432 is larger than the inner diameter of the cylinder corresponding to the second side wall 434. After the downwardly extending housing 12 is inserted into the base 42, a cylindrical space can be jointly enclosed with the second side wall 434 to facilitate the smooth rotation of the rod sleeve 53.

[0094] In some embodiments, referring to Figures 2 to 4 , the support rod 21 includes a body portion 215 and a flange 216. The body portion 215 includes a proximal end 211a extending out of the top housing 16 and a distal end 211b disposed opposite to the proximal end 211a and located inside the accommodation space 17 of the eye detection device 100. The flange 216 is provided on the distal end 211b and surrounds the body portion 215. The flange 216 protrudes radially outward from the body portion 215 away from the axis a. Those skilled in the art can understand that the end closer to the user is the proximal end, and the end farther from the user is the distal end.

[0095] Referring also to Figure 2 and Figure 4 , the outer surface of the flange 216 abuts against the inner surface of the rod sleeve 53 along the radial direction of the support mechanism 20, and the contact surfaces of the two are in form-fit connection. Specifically, the flange 216 includes a third outer peripheral wall 2161 facing the rod sleeve 53, and the rod sleeve 53 includes a second inner peripheral wall 532 facing the support rod 21. The third outer peripheral wall 2161 and the second inner peripheral wall 532 are in matching shapes and are connected.

[0096] The flange 216 protrudes radially outward from the body portion 215, and the outer diameter of the body portion 215 is smaller than the minimum outer diameter of the flange 216. Since the third outer peripheral wall 2161 of the flange 216 abuts against the second inner peripheral wall 532 of the rod sleeve 53 radially, the outer diameter of the body portion 215 is smaller than the minimum inner diameter of the rod sleeve 53, and the outer peripheral wall of the body portion 215 of the support rod 21 will not contact the second inner peripheral wall 532 of the rod sleeve 53.

[0097] The flange 216 and the rod sleeve 53 are in radial contact with each other, and their contact surfaces are in form-fit connection. There is no relative circumferential movement around the axis a between the flange 216 and the rod sleeve 53, achieving the purpose of the rod sleeve 53 rotating synchronously with the support rod 21. In the embodiment of the present application, the support rod 21 is in form-fit connection with the rod sleeve 53 through the flange 216, reducing the contact area between the support rod 21 and the rod sleeve 53, which is beneficial to reducing the frictional resistance when the support rod 21 axially moves relative to the rod sleeve 53 and improving the user experience.

[0098] In some embodiments, the cross-sections of the third outer peripheral wall 2161 and the second inner peripheral wall 532 are polygons with the same shape. Optionally, the cross-sections of the third outer peripheral wall 2161 and the second inner peripheral wall 532 can be triangles, quadrilaterals, pentagons, hexagons, etc. with the same shape.

[0099] The cross-sections of the third outer peripheral wall 2161 and the second inner peripheral wall 532 are both polygons. The third outer peripheral wall 2161 and the second inner peripheral wall 532 both include a plurality of wall portions extending straight along the axis direction X, which can not only achieve the form-fit connection between the flange 216 and the rod sleeve 53, but also enable the flange 216 to smoothly axially move along the second inner peripheral wall 532 to achieve the axial movement of the support rod 21, improving the smoothness of the axial movement of the support rod 21.

[0100] In an alternative embodiment, the third outer peripheral wall 2161 and the second inner peripheral wall 532 can also have other matching shapes. For example, one of the third outer peripheral wall 2161 and the second inner peripheral wall 532 is provided with a convex portion, and the other is provided with a concave portion, and they are in form-fit connection through the concave-convex cooperation of the convex portion and the concave portion. For example, in an alternative embodiment, from the cross-section perpendicular to the axis direction X, the cross-section of the third outer peripheral wall 2161 of the flange 216 is circular, and the cross-section of the second inner peripheral wall 532 of the rod sleeve 53 is also circular. One of them is provided with a convex portion parallel to the axis direction X, and the other is provided with a concave portion parallel to the axis direction. The convex portion can be a protruding columnar object, and the corresponding concave portion can be a concave columnar object. The convex portion can also be a vertical cutting cylinder that fits on the second inner peripheral wall 532 of the rod sleeve 53, and the corresponding concave portion is the remaining structure after cutting off the above vertical cutting cylinder in terms of thickness.

[0101] Those skilled in the art can understand that the present application does not limit the shapes of the inner wall of the rod sleeve 53 and the flange 216 outside the support rod 21, as long as the synchronous rotation of the two is achieved.

[0102] In some embodiments, referring to Figure 2 and Figure 3, the downwardly extending housing 12 extends along the axial direction X from the top housing 16 to the connecting mechanism 40, and the three are fixedly connected. The top housing 16 includes a mounting hole. The downwardly extending housing 12 and the downwardly extending mounting portion 55 are disposed along the outer periphery of the support mechanism 20, enclosing a columnar cavity 13. The columnar cavity 13 communicates with the mounting hole. The support rod 21 is inserted into the mounting hole from the outside to the inside, and the rod sleeve 53 is rotatably disposed in the columnar cavity 13 and sleeved on the outer surface of the support rod 21. Optionally, the columnar cavity 13 includes a second opening 131 (refer to Figure 6 ), and a part of the second outer peripheral wall 531 is exposed outside the columnar cavity 13 through the second opening 131, facilitating alignment during installation.

[0103] The downwardly extending housing 12 can be integrally formed with the top housing 16 or connected by suitable means such as snap connection, welding, screw connection, etc. The downwardly extending mounting portion 55 can be integrally formed with the top housing 16 or fixedly connected in other ways.

[0104] One end of the rod sleeve 53 and the downwardly extending housing 12 is inserted into the installation space 438 of the base 42 and abuts against the base 42. The other end of the rod sleeve 53 facing away from the base 42 axially abuts against the top housing 16. The base 42 and the downwardly extending housing 12 are fixedly connected by screws passing through the second connection hole 423 and the first connection hole 121.

[0105] The downwardly extending housing 12 and the downwardly extending mounting portion 55 can be separately disposed along the outer periphery of the support mechanism 20 to form a gap therebetween. Alternatively, the downwardly extending housing 12 and the downwardly extending mounting portion 55 can also be continuously disposed along the outer periphery of the support mechanism 20, that is, the downwardly extending housing 12 and the downwardly extending mounting portion 55 are connected together.

[0106] Optionally, the downwardly extending mounting portion 55 and the downwardly extending housing 12 can be the remaining two parts after a part of the structure of a hollow cylinder is removed, and the area corresponding to the removed part forms the second opening 131. Exemplarily, the downwardly extending housing 12 can be a semi-hollow cylinder, and the downwardly extending mounting portion 55 is disposed opposite to the downwardly extending housing 12.

[0107] The rod sleeve 53 is rotatably disposed in the downwardly extending housing 12, and the maximum outer diameter of the rod sleeve 53 is smaller than the inner diameter of the hollow cylinder where the downwardly extending housing 12 is located.

[0108] In the embodiment of the present application, the downwardly extending housing 12 provides an installation space for the rod sleeve 53. The combination of the downwardly extending mounting portion 55 and the downwardly extending housing 12 limits the rod sleeve 53 in the radial direction to prevent the rod sleeve 53 from moving radially. The support rod 21 is inserted into the top housing 16 from the outside to the inside, and the rod sleeve 53 is sleeved on the outer surface of the support rod 21. The second opening 131 enables a part of the rod sleeve 53 to be exposed outside the columnar cavity 13 through the second opening 131. The second opening 131 can provide an observation window during the assembly of the rod sleeve 53 and the support rod 21, facilitating the assembly operation and improving the assembly efficiency.

[0109] A card slot 52 is provided on the outer surface of the rod sleeve 53. The card slot 52 can be a strip-shaped groove provided on the outer surface of the rod sleeve 53 along the axial direction X, or as Figure 2 shown, only strip-shaped grooves corresponding to the length of the engaging member 51 are provided on the outer surfaces of the two ends.

[0110] As Figure 2 shown, in some embodiments, the number of the card slots 52 is multiple, and the multiple card slots 52 are evenly spaced along the circumferential direction of the second outer peripheral wall 531 of the rod sleeve 53. Each card slot 52 is a strip-shaped slot extending along the axial direction X.

[0111] The multiple card slots 52 can be circumferentially divided into multiple prompt gears, and feedback prompts can be obtained after the support mechanism 20 rotates a small angle, with higher accuracy.

[0112] Figure 6 is Figure 1 a partial structural schematic diagram of the eye detection device shown. Referring to Figure 3 and Figure 6 , in some embodiments, the support rod 21 includes a first outer peripheral wall 214 facing away from the accommodation cavity 211. At least part of the first outer peripheral wall 214 is outside the housing 10. A scale line 23 extending along the axial direction X is provided on the first outer peripheral wall 214, and the scale line 23 has a minimum unit scale value. The ratio between the pitch of the external thread 411 and the number of the card slots 52 is the above-mentioned minimum unit scale value.

[0113] Exemplarily, the minimum unit scale value of the scale line 23 can be 1 mm, or can be 2 mm, 0.5 mm, etc.

[0114] Optionally, when the second inner peripheral wall 532 of the rod sleeve 53 is polygonal, the number of the card slots 52 can be the same as the number of sides of the second inner peripheral wall 532, and each side corresponds to a card slot 52. Those skilled in the art can understand that the number of sides of the second inner peripheral wall 532 and the number of the card slots 52 on the outer surface of the rod sleeve 53 may not be in a one-to-one correspondence relationship.

[0115] When the engaging member 51 passes between two adjacent card slots 52, the support mechanism 20 axially moves one gear, and the user receives a feedback prompt sound and a card-connecting hand feeling. In the embodiment of the present application, the ratio between the pitch of the external thread 411 and the number of the card slots 52 is set as the minimum unit scale value of the scale line 23. For each axial movement of one gear of the support mechanism 20, the corresponding moving distance is the minimum unit scale value, which is convenient for the user to know the axial moving distance of the support mechanism 20 in time through the feedback information without viewing the scale line, and improves the use convenience.

[0116] In some embodiments, the support mechanism 20 further includes a support head 22. The support head 22 is sleeved outside the proximal end of the support rod 21 extending out of the housing 10, and the two are fixedly connected. The elastic modulus of the support head 22 is smaller than that of the support rod 21.

[0117] The support head 22 and the support rod 21 are relatively fixed, and there is no relative displacement between the two. In one example, the support head 22 is sleeved on the outer surface of the proximal end of the support rod 21, and the two are fixedly connected by threads.

[0118] The support head 22 can form the operation part of the support mechanism 20. Structures such as pits and protrusions that can increase friction can be provided on the support head 22 so as to rotate the entire support mechanism 20 through the support head 22.

[0119] The proximal end of the support head 22 forms the contact part of the support mechanism 20 for contacting the face. In the embodiments of the present application, the elastic modulus of the support head 22 is set to be smaller than that of the support rod 21. The support head 22 is softer and is prone to elastic deformation, improving the comfort of the user. The support rod 21 is not easily deformed to ensure that the support mechanism 20 has a relatively stable support effect.

[0120] In some embodiments, a part of the support mechanism 20 extends out of the end of the housing 10 along the first direction Y, and the included angle between the axial direction X of the support mechanism 20 and the first direction Y is 0° to 45°.

[0121] Optionally, the included angle between the axial direction X and the first direction Y is 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40° or 45°.

[0122] The support mechanism 20 is used to support the user's face, and the user's face usually has a certain curvature. Therefore, in the embodiments of the present application, the included angle between the axial direction X of the support mechanism 20 and the first direction Y is set to 0° to 45°, which can better match the curvature of the user's face and improve the support stability.

[0123] In some embodiments, the eye detection device 100 includes a detection component 30. The detection component 30 and the support mechanism 20 are arranged at the same end of the housing 10 along the first direction Y. The number of the support mechanisms 20 is at least two, including two or more than two. At least two support mechanisms 20 are symmetrically arranged on both sides of the detection component 30 along the second direction Z, and the first direction Y and the second direction Z intersect. Preferably, the first direction Y and the second direction Z are perpendicular.

[0124] Optionally, the detection component 30 can be a probe, a jet structure capable of jetting air flow, and so on.

[0125] The detection component 30 and the support mechanism 20 are located at the same end of the housing 10. The support mechanism 20 can keep a proper distance between the housing 10 and the user's face, facilitating the detection operation performed by the detection component 30.

[0126] At least two support mechanisms 20 are symmetrically arranged on both sides of the detection component 30 along the second direction Z, which not only facilitates finding the relative position between the eye detection device 100 and the eyes, but also can support the eye detection device 100 more stably, further improving the detection accuracy of the eye detection device 100.

[0127] Those skilled in the art can understand that the "distal end" mentioned in the embodiments of the present application refers to the end far from the user, and correspondingly, the "proximal end" mentioned in the embodiments of the present application refers to the end close to the user.

[0128] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered by the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An eye detection device, characterized in that, Comprising: A housing, an accommodation space being defined inside the housing; A detection component, provided at one end of the housing along a first direction; And A support mechanism, the support mechanism and the detection component being provided at the same end of the housing, the support mechanism being connected to the housing, the support mechanism extending along its own axis direction, and partially protruding out of the housing and being capable of supporting on the face, the support mechanism being configured to be movably arranged relative to the housing along the axis direction to adjust the length of the part of the support mechanism protruding out of the housing.

2. The eye detection device according to claim 1, wherein The eye detection device further comprises a connection mechanism, the connection mechanism being fixedly provided inside the accommodation space and being fixedly arranged relative to the housing; The support mechanism is configured to be rotatably arranged around its own axis relative to the connection mechanism.

3. The eye detection device according to claim 2, wherein The support mechanism comprises a support rod, a part of the support rod along the axis direction protruding out of the housing, the inside of the support rod being a hollow structure to form an accommodation cavity, and an inner thread being provided on a first inner peripheral wall of the support rod facing the accommodation cavity; The connection mechanism comprises a screw rod, an external thread being provided on the screw rod, the screw rod being inserted into the accommodation cavity and being threadedly connected to the support rod.

4. The eye detection device according to claim 3, wherein An end of the housing along the first direction has a top housing, the housing further comprises a downwardly extending housing, the downwardly extending housing extending from the top housing along a direction parallel to the axis direction towards the inside of the accommodation space, the downwardly extending housing being fixedly connected to the connection mechanism, and the downwardly extending housing, the connection mechanism and the top housing together define an installation space for the support mechanism.

5. The eye detection device according to claim 4, wherein The connection mechanism comprises a base, the base comprising a bottom wall, the downwardly extending housing abuts against the bottom wall; the base comprises a recess, the recess being recessed from the bottom wall along the axis direction towards a direction away from the top housing, and a distal end of the screw rod being fixedly provided in the recess.

6. The eye detection device according to claim 5, wherein The downwardly extending housing has an outwardly protruding portion at a distal end away from the top housing, a first connection hole being provided inside the outwardly protruding portion, the first connection hole penetrating through one end of the outwardly protruding portion away from the top housing along the axis direction; The base is provided with a mounting portion, the mounting portion being sleeved outside the outwardly protruding portion and being matched with the shape of the outwardly protruding portion, and a second connection hole being provided at a position of the bottom wall corresponding to the first connection hole; The base and the downwardly extending housing are connected by a fastener passing through the first connection hole and the second connection hole.

7. The eye detection device according to claim 4, wherein The eye detection device further includes a rotation prompting mechanism, which includes a clamping member, a clamping groove, and a rod sleeve. One of the clamping member and the clamping groove is provided on the outer surface of the rod sleeve, and the other is separately arranged from the rod sleeve. The rod sleeve is sleeved outside the support rod and is configured to rotate synchronously with the support mechanism; The clamping member is connected to the top housing and is configured to be removably clamped in the clamping groove after the support mechanism rotates a preset angle around its own axis.

8. The eye detection device according to claim 7, wherein The rod sleeve is sleeved outside the support rod. In the axial direction, both ends of the rod sleeve are abutted against the connection mechanism and the top housing respectively; The clamping groove is provided on the second outer peripheral wall of the rod sleeve facing away from the support rod.

9. The eye detection device according to claim 8, wherein The support rod includes a main body portion and a flange. The main body portion includes a proximal end extending out of the top housing and a distal end opposite to the proximal end. The flange is provided at the distal end and surrounds the main body portion; The flange abuts against the rod sleeve along the radial direction of the support mechanism. The flange includes a third outer peripheral wall facing the rod sleeve, and the rod sleeve includes a second inner peripheral wall facing the support rod. The shapes of the third outer peripheral wall and the second inner peripheral wall match and are connected.

10. The eye detection device according to claim 8, wherein The top housing includes a downward extension mounting portion, which extends from the top housing towards the connection mechanism along the axis direction of the support mechanism. The clamping member is provided on the downward extension mounting portion; The downward extension housing and the downward extension mounting portion are both provided on the outer periphery of the rod sleeve and jointly define the radial space of the rod sleeve.

11. The eye detection device according to claim 10, wherein A receiving portion is defined in the downward extension mounting portion, and a first opening is provided on one side of the receiving portion facing the rod sleeve; The clamping member is arranged in the receiving portion and is exposed outside the downward extension mounting portion through the first opening.

12. The eye detection device according to claim 11, wherein The rotation prompting mechanism further includes an elastic member, which is arranged in the receiving portion, and the clamping member is arranged between the clamping groove and the elastic member; Both ends of the elastic member are respectively connected to the clamping member and the downward extension mounting portion.

13. The eye detection device according to claim 10, wherein The downward extension mounting portion is made of an elastic hard material; One end of the downward extension mounting portion is fixedly connected to the top housing, and the other end is a suspended end. The clamping member is fixed to the suspended end and is arranged opposite to the clamping groove of the rod sleeve along the radial direction.

14. The eye detection device according to claim 7, wherein The connection mechanism includes a base, and the base includes a bottom wall. The downward extension housing abuts against the bottom wall; The base includes a first side wall and a second side wall. The downward extension housing abuts against the inner surface of the first side wall, and the installation space of the rod sleeve is enclosed by the downward extension housing and the second side wall.

15. The eye detection device according to claim 7, wherein the number of the card slots is multiple, and the multiple card slots are evenly spaced along the circumferential direction of the second outer peripheral wall of the rod sleeve, and each of the card slots is a strip-shaped slot extending along the axial direction; and / or, the support rod includes a first outer peripheral wall facing away from the accommodation cavity, at least part of the first outer peripheral wall is outside the top housing, and the first outer peripheral wall is provided with scale lines extending along the axial direction, and the scale lines have a minimum unit scale value; the ratio between the pitch of the external thread of the screw rod and the number of the card slots is the minimum unit scale value.

16. The eye detection device according to claim 1, wherein the included angle between the axial direction of the support mechanism and the first direction is 0° to 45°; and / or, the number of the support mechanisms is at least two, and at least two support mechanisms are symmetrically arranged on both sides of the detection component along the second direction, and the first direction and the second direction intersect.

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