Liftable chin support and medical detection equipment

Abstract

The invention belongs to the technical field of medical instruments, and discloses a liftable chin support and medical detection equipment. The liftable chin support comprises a base, a guide piece, a bearing piece, a sliding piece, a control panel and a first driving assembly. Wherein the two guide pieces are vertically arranged on the base at intervals; the bearing piece is used for supporting the lower jaw; the two sliding pieces are arranged on the two guiding pieces in a sliding mode in the vertical direction correspondingly, and the two ends of the bearing piece are fixed to the two sliding pieces correspondingly. The first driving assembly is arranged on the base, is in transmission connection with one sliding piece and is used for driving the sliding piece to slide along the guide piece; the control panel is arranged between the two guiding pieces. According to the invention, the automation level can be improved, the inspection efficiency is ensured, and the operation difficulty is reduced; meanwhile, a single-side driving mode is adopted, the situation that a driving structure and a transmission structure are arranged in the center of the chin support is avoided, the compactness of the structure is improved, and the effectiveness of space utilization can also be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an adjustable chin rest and a medical detection device. Background Art

[0002] The chin rest is a commonly used device in ophthalmic, otolaryngology examination equipment and optometry examination equipment. Among them, the fundus camera and the optical coherence tomography (OCT) scanner, as two core ophthalmic examination devices, play an irreplaceable role in clinical practice. The fundus camera captures high-definition images of the retina to help doctors evaluate the health status of key structures such as fundus blood vessels, nerve fiber layers, and macula; while OCT uses low-coherence light interference technology to achieve cross-sectional imaging of each layer structure of the retina, providing depth information for the diagnosis of diseases such as macular lesions, glaucoma, and diabetic retinopathy.

[0003] During the use of the above-mentioned devices, the stability and comfort of the patient's head are directly related to the imaging quality and detection efficiency. Therefore, as an important auxiliary device, the chin rest is widely used in ophthalmic examination devices such as fundus cameras and OCTs. By providing accurate head support and positioning functions, the chin rest can not only effectively reduce image blurring caused by head shaking of patients, but also improve the comfort of detection by optimizing the patient's position, thus providing reliable guarantee for ophthalmologists to obtain high-quality fundus images and OCT scan data. With the continuous development of ophthalmic diagnosis and treatment technologies towards precision and intelligence, the ergonomic design and automatic adjustment ability of the chin rest have also become an important research direction for improving the overall performance of the device.

[0004] When examining some patients, in order to fix the head and eyes, the patient's mandible needs to be placed on the chin rest. In order to adapt to the head heights of different patients, the height of the chin rest needs to be adjusted, or for the examination of the same patient, the head needs to be vertically moved within a certain height range.

[0005] The prior art discloses a stable and compact chin rest lifting structure, please refer to patent CN208808448U. In addition, the prior art also discloses a centrally driven and automatically liftable chin support, please refer to patent CN215078327U. In the above two prior arts, for the supporting member for supporting the patient's chin, there is a driving mechanism and a complex transmission mechanism directly below it to lift the upper supporting member.

[0006] However, currently, since the chin rest mainly adopts a layout with a driving structure and a transmission structure arranged at the central position below, the vertical space below is basically occupied, resulting in poor compactness of the entire structure. Summary of the Invention

[0007] The object of the present invention is to provide a liftable chin support and a medical detection device, which improve the automation level, ensure the inspection efficiency, and reduce the operation difficulty; at the same time, a single-side drive mode is adopted to avoid the layout of a drive structure and a transmission structure at the central position of the chin support, improve the compactness of the structure, and also improve the effectiveness of space utilization.

[0008] To achieve this purpose, the present invention adopts the following technical solutions:

[0009] A liftable chin support, comprising:

[0010] A base;

[0011] Two guiding members, which are spaced apart and erected on the base;

[0012] A supporting member for supporting the lower jaw;

[0013] Two sliding members, which respectively slide along the vertical direction on the two guiding members, and both ends of the supporting member are respectively fixed on the two sliding members; a first driving assembly is arranged on the base, and the first driving assembly is in transmission connection with one of the sliding members for driving the sliding member to slide along the guiding member;

[0014] A control board is arranged between the two guiding members.

[0015] As an optional scheme of the liftable chin support, the first driving assembly includes a driving seat fixed on the base, a first driving member fixed on the driving seat, and a transmission mechanism, and the first driving member drives the sliding member to slide through the transmission mechanism.

[0016] As an optional scheme of the liftable chin support, several vibration isolation blocks are arranged between the base and the driving seat, and / or several vibration isolation blocks are arranged between the first driving member and the driving seat.

[0017] As an optional scheme of the liftable chin support, the transmission mechanism includes a first gear, a second gear, a lead screw and a nut, the first driving member is in transmission connection with the first gear, the first gear is in meshing transmission with the second gear, both ends of the lead screw are respectively rotatably connected with the guiding members, one end of the lead screw is fixed on the second gear and can be driven by the second gear to rotate, the nut is screwed with the lead screw, and the end of the sliding member away from the supporting member is connected with the nut.

[0018] As an optional solution for a liftable chin rest, the transmission mechanism also includes a first washer and a second washer, the first washer is fixed to the base; the second washer is fixed to the end of the second gear, the second washer is pressed against the first washer and can rotate relative to the surface of the first washer.

[0019] As an optional solution for a liftable chin rest, the transmission mechanism further includes two first bearings, the inner rings of the two first bearings are both sleeved on the guide member, the outer ring of one of the first bearings is fixed on the second gear, and the outer ring of the other first bearing is fixed on the end of the lead screw away from the second gear.

[0020] As an optional solution for a liftable chin rest, the sliding member is a sleeve, the sliding member is sleeved on the guide member, and the sliding member is slidably connected to the guide member via a plurality of second bearings.

[0021] As an optional solution for a liftable chin rest, a limit ring is provided on the guide member corresponding to the sliding member drivingly connected to the first driving assembly, and the nut can be pressed against the limit ring.

[0022] As an optional solution for a liftable chin rest, a switch is provided on the base, and the switch can be electrically connected to the first driving member. A baffle is provided on the nut, and when the nut is placed in a preset position, the baffle triggers the switch to stop the first driving member from working.

[0023] The medical detection device comprises a detection device body and the liftable chin rest as described in any of the above schemes, wherein the detection device body has an optical front end which is arranged on the upper part of the base and protrudes between the two guide members.

[0024] Beneficial effects:

[0025] In the first aspect of the present invention, the liftable chin rest adopts an automated driving mode, which effectively avoids the manual adjustment and lifting mode adopted in the prior art, improves the efficiency of height adjustment, facilitates the doctor's operation, and avoids the need for a certain amount of force for rotation and lifting during the operation, thereby saving time, effort and convenience to achieve the lifting and lowering of the chin rest; on the other hand, the first driving component adopts a single-sided driving mode, which avoids the layout of the existing chin rest with a driving structure and a transmission structure set in a central position, improves the compactness of the entire liftable chin rest, and avoids the large-range adjustment of the equipment in the prior art; at the same time, there is sufficient space below the supporting member and between the two guide members for configuring other functional components or components, such as directly setting the control panel below the supporting member 3 and in the space between the two guide members 2, thereby optimizing the structural layout of the liftable chin rest and greatly improving the effectiveness of space utilization.

[0026] In the second aspect of the present invention, for the inspection device based on the liftable chin support, the single-side driving mode is adopted by the first driving component, avoiding the layout of the driving structure and the transmission structure arranged at the central position in the existing chin support. There is sufficient space between the lower part of the supporting member and the two guiding members. On the one hand, part of the structure of the optical front end can be convexly arranged inside this space, so as to meet the optimized setting of the structure of the optical front end, improve the space utilization rate, and ensure the compactness of the overall structure. On the other hand, it can also make the optical path closer to the patient's eyes, improving the effectiveness of space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the chin support provided by an embodiment of the present invention;

[0028] Figure 2 is a cross-sectional view of the chin support provided by an embodiment of the present invention;

[0029] Figure 3 is a schematic structural diagram of the chin support with a hidden base provided by an embodiment of the present invention;

[0030] Figure 4 is a schematic structural diagram of the transmission mechanism provided by an embodiment of the present invention;

[0031] Figure 5 is a schematic structural diagram of the cooperation between the guiding member and the sliding member on the driving side provided by an embodiment of the present invention;

[0032] Figure 6 is a schematic structural diagram of the cooperation between the guiding member and the sliding member on the non-driving side provided by an embodiment of the present invention.

[0033] In the figure:

[0034] 1. Base; 11. First switch; 2. Guiding member; 3. Supporting member; 4. Sliding member;

[0035] 5. First driving component; 51. Driving seat; 52. First driving member; 53. Transmission mechanism; 531. First gear; 532. Second gear; 533. Lead screw; 534. Nut; 535. First washer; 536. Second washer; 537. First bearing; 54. Retaining piece;

[0036] 6. Vibration isolation block;

[0037] 7. Second bearing; 71. Spacer ring; 72. Threaded retaining ring;

[0038] 8. Limit retaining ring;

[0039] 9. Forehead support member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only the parts related to the present invention rather than all the structures are shown in the drawings.

[0041] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0043] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0044] Please refer to the attached Figure 1 - attached Figure 3 , the first aspect of this embodiment relates to a liftable chin rest, which includes a base 1, a guide member 2, a support member 3, a sliding member 4, a control board (not shown in the figure), and a first driving assembly 5. Among them, two guide members 2 are erected on the base 1 at intervals; the support member 3 is used to support the lower jaw; two sliding members 4 are respectively slidably arranged on the two guide members 2 along the vertical direction, and both ends of the support member 3 are respectively fixed on the two sliding members 4; the first driving assembly 5 is arranged on the base 1, and the first driving assembly 5 is in transmission connection with one of the sliding members 4 for driving the sliding member 4 to slide along the guide member 2; the control board is arranged between the two guide members 2.

[0045] Specifically, the base 1 is in the shape of a flat plate structure and is used to provide support for the entire liftable chin rest. The base 1 can be directly placed on the detection platform, and the flatness of the detection platform on the horizontal plane is utilized to ensure the flatness of the entire liftable chin rest. The two guide members 2 are respectively erected on the base 1 along the vertical direction, and the guide members 2 are detachably connected to the base 1. Among them, a limit groove or a limit hole can be provided on the base 1, and the guide members 2 are directly inserted into the limit groove or the limit hole; the guide members 2 can also be erected on the base 1, and the threaded fasteners pass through from the bottom of the base 1 upward and are screwed to the end of the guide members 2, so as to fix the guide members 2 on the base 1. The supporting member 3 is provided with a streamline surface conforming to the human mandible for supporting the patient's chin. The two sliding members 4 are respectively sleeved on the corresponding guide members 2 along the vertical direction, and both ends of the supporting member 3 are respectively fixed on the two sliding members 4. By sliding the sliding members 4 on the guide members 2, the adjustment of the supporting member 3 in the vertical direction is realized, and further the height adjustment of the patient's head position is realized.

[0046] Furthermore, the control board can be arranged on the base 1 or inside the base 1, and specific adjustment can be made according to the convenience of assembly and the aesthetics of installation. The control board can not only be used to control parameters such as the opening and closing and driving speed of the first driving assembly 5, but also be used for signal connection with other components or sensors, etc., for acquiring, processing and sending control signals to realize the automatic information processing function.

[0047] The base 1 is provided with a first driving assembly 5. Among them, the first driving assembly 5 provides an output power source for one of the sliding members 4, is used to drive the sliding member 4 to move along the vertical direction, and at the same time, since both ends of the supporting member 3 are respectively connected to the two sliding members 4, the other sliding member 4 (non-driving side) far from the first driving assembly 5 can be lifted and lowered synchronously.

[0048] The liftable chin rest of this embodiment adopts an automatic driving method, effectively avoiding the manual adjustment and lifting method adopted in the prior art, improving the efficiency of height adjustment, facilitating the operation of doctors, and also avoiding the need for a certain amount of force to rotate and lift during the operation, saving time, effort and conveniently realizing the lifting of the chin rest; on the other hand, the first driving assembly 5 adopts a single-side driving method, avoiding the layout of the driving structure and the transmission structure at the central position in the existing chin rest, improving the compactness of the entire liftable chin rest, and avoiding the large-range adjustment of the existing equipment; at the same time, there is sufficient space between the lower part of the supporting member 3 and the two guide members 2, which can be used to configure other functional components or assemblies, such as directly arranging the control board in the space between the lower part of the supporting member 3 and the two guide members 2, so as to optimize the structural layout of the liftable chin rest and greatly improve the effectiveness of space utilization.

[0049] Optionally, the first driving assembly 5 includes a driving base 51 fixed on the base 1, a first driving member 52 fixed on the driving base 51, and a transmission mechanism 53. The first driving member 52 drives the sliding member 4 to slide through the transmission mechanism 53.

[0050] Specifically, the first driving member 52 can be a servo motor, a stepper motor, an electric cylinder, etc., to achieve precise control of motion parameters. The first driving member 52 can adjust the output according to the control board signal to ensure that the first driving member 52 operates according to the set value. The driving base 51 is a block, and the first driving member 52 can be connected to the driving base 51 by a detachable connection method such as screwing. The transmission mechanism 53 can adopt various forms, such as gear transmission, worm and worm gear transmission, or synchronous belt transmission, etc. Among them, there are also various forms of gear transmission, such as helical gears, bevel gears, or multi-stage gear sets, etc. The first driving member 52 drives the transmission mechanism 53 to output a linear reciprocating motion and drive the sliding member 4 to slide along the vertical direction. Of course, in other embodiments, if the transmission method is stable and the space is sufficient, the intermediate transmission mechanism 53 can also be omitted, and the first driving member 52 can directly drive the sliding member 4 to slide.

[0051] Optionally, a plurality of vibration isolation blocks 6 are provided between the base 1 and the driving base 51, and / or a plurality of vibration isolation blocks 6 are provided between the first driving member 52 and the driving base 51.

[0052] In this embodiment, the vibration isolation block 6 can be a vibration damping ring. A plurality of vibration damping rings are arranged between the base 1 and the driving base 51, and / or between the first driving member 52 and the driving base 51. The vibration isolation block 6 separates the first driving member 52 from the driving base 51, and at the same time can also separate the base 1 from the driving base 51, effectively blocking the transmission of vibration, reducing the noise of mechanical vibration, and at the same time the vibration damping effect can also avoid large wear problems between the transmission parts of the transmission mechanism 53.

[0053] Please refer to the attached Figure 2 - attached Figure 4 Optionally, the transmission mechanism 53 includes a first gear 531, a second gear 532, a lead screw 533, and a nut 534. The first driving member 52 is in transmission connection with the first gear 531. The first gear 531 is in meshing transmission with the second gear 532. The two ends of the lead screw 533 are respectively rotatably connected to the guide member 2. One end of the lead screw 533 is fixed on the second gear 532 and can be driven by the second gear 532 to rotate. The nut 534 is in threaded connection with the lead screw 533. One end of the sliding member 4 away from the supporting member 3 is connected to the nut 534.

[0054] This application will be described in detail based on the gear meshing transmission of the transmission mechanism 53. Specifically, the first gear 531 is provided at the driving end of the first driving member 52. The first driving member 52 drives the first gear 531 to rotate. At the same time, the first gear 531 meshes with the second gear 532 to drive the second gear 532 to rotate. Among them, the second gear 532 surrounds the lead screw 533 and is connected in a transmission manner by applying frictional force to the contact surface through screw locking, or the second gear 532 and the lead screw 533 are connected in a transmission manner by key connection. Thus, the lead screw 533 can be driven to rotate when the second gear 532 rotates. The nut 534 is screwed onto the lead screw 533. By limiting the two end portions of the lead screw 533, it is ensured that the lead screw 533 can only rotate, so that the nut 534 can move along the lead screw 533 in the vertical direction. One end of the sliding member 4 is connected to the nut 534, so that the sliding member 4 drives the supporting member 3 to move in the vertical direction. By reasonably setting the tooth number ratio of the first gear 531 and the second gear 532, the reduction ratio can be adjusted so that the sliding member 4 obtains appropriate speed and thrust. The first gear 531 and the second gear 532 can be made of different materials. The second gear 532 is preferably made of wear-resistant material, which can reduce the noise during forward and reverse rotation and reduce wear at the same time.

[0055] In this embodiment, the lead screw 533 is a hollow structure in the vertical direction. The lead screw 533 is sleeved on the guiding member 2, and the two ends of the lead screw 533 can be slidably connected to the guiding member 2. The guiding member 2 is a smooth shaft structure, which can play a role of sliding support for the lead screw 533, so as to ensure the stable rotation of the lead screw 533. In addition, a larger moving distance can be obtained at a lower cost, the compactness of the overall structure is ensured, and the friction coefficient is reduced.

[0056] In this embodiment, by providing a plurality of vibration isolation blocks 6 between the base 1 and the driving seat 51, and / or between the first driving member 52 and the driving seat 51, the wear problem caused by the non-parallelism of the central axes of the first gear 531 and the second gear 532 can be further avoided.

[0057] In other embodiments, in addition to using the lead screw 533 in cooperation with the nut 534 to realize the lifting of the sliding member 4, it can also be adjusted to the cooperation of a gear and a rack according to the spatial position to realize the vertical movement of the sliding member 4. In addition, in addition to the smooth shaft structure of the guiding member 2 cooperating with the sliding member 4 to move up and down in the vertical direction, a linear guide rail or the like can also be used.

[0058] Furthermore, the transmission mechanism 53 further includes a first washer 535 and a second washer 536. The first washer 535 is fixed to the base 1; the second washer 536 is fixed to the end of the second gear 532. The second washer 536 abuts against the first washer 535 and can rotate relative to the surface of the first washer 535.

[0059] In this embodiment, the first washer 535 is fixed to the base 1 and sleeved on the guide member 2. The second washer 536 is also sleeved on the guide member 2, and the second washer 536 is a self-lubricating thrust washer. The second washer 536 has self-lubricity and can bear axial loads, so as to ensure that the second washer 536 contacts the first washer 535 and can slide relatively.

[0060] In this embodiment, the arrangement of the first washer 535 and the second washer 536 can facilitate the adjustment of the setting position of the second gear 532. At the same time, by utilizing the relative rotation of the first washer 535 and the second washer 536 and the self-lubricity of the second washer 536, the wear of the second gear 532 can be avoided.

[0061] In other embodiments, the second washer 536 can also be replaced by a sliding bearing or a thrust rolling bearing with self-lubricity.

[0062] Furthermore, the transmission mechanism 53 further includes two first bearings 537. The inner rings of the two first bearings 537 are both sleeved on the guide member 2. The outer ring of one of the first bearings 537 is fixed to the second gear 532, and the outer ring of the other first bearing 537 is fixed to the end of the lead screw 533 away from the second gear 532.

[0063] Specifically, the first bearings 537 are sliding bearings. The two first bearings 537 contact the guide member 2 and rotate relative to the guide member 2. The first bearings 537 have self-lubricity to reduce the friction coefficient and reduce wear. One of the first bearings 537 is press-fitted into the second gear 532, and the other first bearing 537 is press-fitted at the end of the lead screw 533 away from the second gear 532. The two first bearings 537 are both used to bear radial loads.

[0064] Please refer to Appendix Figure 5 and Appendix Figure 6 , Optionally, the sliding member 4 is a sleeve. The sliding member 4 is sleeved on the guide member 2, and the sliding member 4 is slidably connected to the guide member 2 through a plurality of second bearings 7.

[0065] In this embodiment, the second bearing 7 adopts a linear bearing, and the second bearing 7 can provide support for the sliding member 4 and ensure smooth movement in the vertical direction. Two second bearings 7 are arranged between the sliding member 4 and the guide member 2 in the vertical direction. The two second bearings 7 are separated by a spacer 71 and sleeved on the guide member 2. One end of the second bearing 7 close to the lower side abuts against the lower end surface of the spacer 71 to achieve position limiting, and the other end is limited by a position limiting step formed by the inward protrusion of the sliding member 4. The two second bearings 7 are used as double support points to increase the rigidity of the overall structure, and the spacing between the two second bearings 7 is greater than 1 / 2 of the cantilever length of the supporting member 3 to avoid jamming during the lifting process. In this embodiment, two second bearings 7 are also arranged on the non-driving side, which can share part of the load, improve the bearing capacity, and enhance stability.

[0066] In other embodiments, when the supporting effect is sufficient, the second bearing 7 may also be replaced by a rolling bearing.

[0067] Two second bearings 7 are also adaptively arranged inside the sliding member 4 on the non-driving side. The two second bearings 7 are arranged at intervals between the sliding member 4 and the guide member 2 in the vertical direction. A threaded retaining ring 72 is provided near the lower end of the sliding member 4. The threaded retaining ring 72 is screwed to the inner wall of the sliding member 4. The lower end face of the second bearing 7 on the lower side abuts against the threaded retaining ring 72, and the upper end face of the second bearing 7 is limited by a limiting step formed by a convex arrangement of the sliding member 4 inwardly; the second bearing 7 on the upper side is limited by the end face of the limiting step formed by a convex arrangement of the sliding member 4 inwardly, so that the sliding member 4 and the supporting member 3 move synchronously in the vertical direction along the guide member 2 through the second bearing 7.

[0068] It should be noted that in the present application, the sliding member 4 on the non-driving side is a driven structure. When the non-driving side only serves as an appearance or bears a small load, the second bearing 7 in the sliding member 4 on the non-driving side can be eliminated, or the number of second bearings 7 can be reduced.

[0069] In this embodiment, the first bearing 537, the second bearing 7, the second gear 532, the lead screw 533 and the nut 534 can all be supported by self-lubricating materials to reduce noise, reduce wear, reduce maintenance times, and reduce maintenance costs.

[0070] Please refer to the attached Figure 5 Optionally, a limit ring 8 is provided on the guide member 2 corresponding to the sliding member 4 that is transmission-connected to the first driving assembly 5, and the nut 534 can be pressed against the limit ring 8.

[0071] Specifically, the limit retaining ring 8 is fixed inside the guide member 2 and can serve as a mechanical limit structure for the slider 4 to move to the highest point. Specifically, when the nut 534 drives the slider 4 to rise to the highest point, the nut 534 abuts against the limit retaining ring 8, so that the nut 534 can no longer move upward, thereby realizing the mechanical locking of the supporting member 3 at the highest position.

[0072] In this embodiment, the limit retaining ring 8 can limit the maximum stroke of the supporting member 3, thereby avoiding damage to the patient caused by the continuous upward movement of the supporting member 3 due to a driving failure.

[0073] Optionally, a first switch 11 is provided on the base 1. The first switch 11 can be electrically connected to the first driving member 52. A tab 54 is provided on the nut 534. When the nut 534 is in a preset position, the tab 54 triggers the first switch 11 to cause the first driving member 52 to stop working.

[0074] The first switch 11 is a photoelectric switch and can be triggered by the blocking effect of the tab 54 on the light. The first switch 11 is screwed and fixed to the base 1 through a switch seat, and at the same time, the first switch 11 is connected in the circuit of the first driving member 52 to control the first driving member 52. Specifically, when the first driving member 52 is powered on, it drives the slider 4 and the supporting member 3 to automatically descend. When descending to the preset position, the tab 54 stops after descending to the working position of the first switch 11. At this time, the supporting member 3 reaches the lowest point of the lifting stroke. When the first driving member 52 is a stepping motor with an encoder, the lifting distance of the supporting member 3 can be calculated through the number of rotations of the motor shaft and the transmission ratio of the entire transmission mechanism 53. At the same time, after storing data at the highest point position, it is used as the soft limit for the supporting member 3 to rise to the highest point, that is, when the supporting member 3 reaches the highest point, the first driving member 52 stops rotating, so that the supporting member 3 stops rising; the limit retaining ring 8 in this embodiment can actually serve as a mechanical limit guarantee after the soft limit fails, thereby improving safety and preventing the supporting member 3 from rising continuously and causing harm to the patient.

[0075] Optionally, a control button is provided on the base 1. The control button is signal-connected to the first driving member 52.

[0076] In this embodiment, medical staff can directly perform manual operations through the control button to control the first driving member 52. Exemplarily, when the medical staff long-presses the control button, the first driving member 52 is started and drives the supporting member 3 to move. After descending to the lowest point position, the tab 54 triggers the first switch 11, thereby realizing the automatic stop of the first driving member 52; when rising to the highest point position, the soft limit is triggered, thereby realizing the automatic stop of the first driving member 52; when the medical staff needs the supporting member 3 to be placed at the required height, just release the control button at the required height.

[0077] In one implementation of this embodiment, a locking mechanism is provided on the guide member 2 on the non-driving side. The locking mechanism includes a friction end provided on one side of the guide member 2. The friction end can be a rough surface on the outer wall of the guide member 2 or a friction member provided on the outer wall of the guide member 2. The locking mechanism further includes a locking bolt that passes through the sliding member 4 and is threadedly connected to the sliding member 4. By screwing the locking bolt, the end of the locking bolt can be abutted against the friction end, so as to cooperate with the friction end to support the sliding member 4 on the non-driving side, avoiding the bending of the supporting member 3 caused by the self-weight of the sliding member 4 and the additional load on the supporting member 3, and improving the stability and service life.

[0078] In one implementation of this embodiment, a protruding structure is provided on the base 1 or the guide member 2 on the non-driving side. The protruding structure is driven by an electric drive source. The protruding structure can be a rod and can move in the horizontal direction under the drive of the electric drive source. Correspondingly, a groove is provided on the guide member 2 on the non-driving side. After the height of the supporting member 3 is adjusted in place, the protruding structure is inserted into the groove, so as to realize the support for the sliding member 4 on the non-driving side, avoiding the bending of the supporting member 3 caused by the self-weight of the sliding member 4 and the additional load on the supporting member 3, and improving the stability and service life.

[0079] Of course, the electric drive source of the protruding structure can be signal-connected to the control board. By integrating the adjustment height position information of the sliding member 4 by the control board, the action timing of the electric drive source driving the protruding structure to cooperate with the groove can be judged.

[0080] In one implementation of this embodiment, a supporting structure is further provided on the base 1. The supporting structure can be a supporting boss provided on the base 1. Correspondingly, an abutting structure is provided on the outer wall of the sliding member 4 on the non-driving side. The abutting structure is stepped. A second switch is provided on the side of the abutting structure close to the base 1. The second switch can be the same as the first switch 11, which is a photoelectric switch. The second switch is signal-connected to the control board, so as to judge that the sliding member 4 is in the lowest position through an electric signal.

[0081] Specifically, when the sliding member 4 on the non-driving side moves downward to the lowest position, the abutting structure of the sliding member 4 on the non-driving side directly presses against the supporting boss, so as to realize the support for the sliding member 4 on the non-driving side, avoiding the fatigue error caused by the long-term suspension of the sliding member 4 on the non-driving side due to its own weight and the additional load on the supporting member 3, and ensuring the measurement accuracy. At the same time, the second switch is triggered by the extrusion action of the supporting boss and transmits the closing electric signal to the control board. After receiving the signal, the control board can further control the first driving member 52 to stop working, avoiding the damage to the structure of the sliding member 4 after the sliding member 4 exceeds the lowest position.

[0082] It should be noted that those skilled in the art can selectively set one of the first switch 11 and the second switch according to the usage requirements.

[0083] Please continue to refer to the attached Figure 1 - attached Figure 3 Moreover, the adjustable chin rest further includes a forehead support member 9. When the patient's chin abuts against the support member 3, the patient's forehead can directly abut against the forehead support member 9 to ensure the stability of the patient's head position.

[0084] The second aspect of this embodiment also relates to a medical detection device, which includes a detection device body and the above-mentioned adjustable chin rest. The detection device body has an optical front end, and the optical front end is provided on the upper part of the base 1 and protrudes between the two guide members 2.

[0085] In this embodiment, the optical front end can be the optical path and control structure of the device. Since the first driving component 5 adopts a single-side driving method, it avoids the layout of the existing chin rest with a driving structure and a transmission structure arranged at the central position. There is sufficient space between the directly below of the support member 3 and the two guide members 2. On the one hand, part of the structure of the optical front end can be protrudingly arranged inside this space, thus meeting the optimized setting of the structure of the optical front end, improving the space utilization rate, and ensuring the compactness of the overall structure. On the other hand, it can also make the optical path closer to the patient's eyes, improving the effectiveness of space utilization.

[0086] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A liftable chin rest, characterized in that: include: Base (1); Two guide members (2), the two guide members (2) being arranged vertically on the base (1) at intervals; A support member (3) for supporting the mandible; Two sliding members (4), the two sliding members (4) are respectively slidably arranged on the two guide members (2) along the vertical direction, and the two ends of the supporting member (3) are respectively fixed on the two sliding members (4); a first driving component (5) is arranged on the base (1), and the first driving component (5) is drivingly connected to one of the sliding members (4) and is used to drive the sliding member (4) to slide along the guide member (2); A control panel is arranged between the two guide members (2).

2. The liftable chin rest according to claim 1, characterized in that: The first driving assembly (5) comprises a driving seat (51) fixed on the base (1), a first driving member (52) fixed on the driving seat (51), and a transmission mechanism (53), wherein the first driving member (52) drives the sliding member (4) to slide via the transmission mechanism (53).

3. The liftable chin rest according to claim 2, characterized in that: A plurality of vibration isolation blocks (6) are provided between the base (1) and the drive seat (51), and / or a plurality of vibration isolation blocks (6) are provided between the first drive member (52) and the drive seat (51).

4. The liftable chin rest according to claim 2, characterized in that: The transmission mechanism (53) comprises a first gear (531), a second gear (532), a lead screw (533) and a nut (534); the first driving member (52) is transmission-connected to the first gear (531); the first gear (531) and the second gear (532) are meshed for transmission; both ends of the lead screw (533) are rotationally connected to the guide member (2); one end of the lead screw (533) is fixed to the second gear (532) and can be rotated by the drive of the second gear (532); the nut (534) is threadedly connected to the lead screw (533); and one end of the sliding member (4) away from the supporting member (3) is connected to the nut (534).

5. The liftable chin rest according to claim 4, characterized in that: The transmission mechanism (53) further comprises a first washer (535) and a second washer (536), wherein the first washer (535) is fixed to the base (1); the second washer (536) is fixed to the end of the second gear (532), and the second washer (536) is pressed against the first washer (535) and can rotate relative to the surface of the first washer (535).

6. The liftable chin rest according to claim 4, characterized in that: The transmission mechanism (53) further comprises two first bearings (537), the inner rings of the two first bearings (537) being sleeved on the guide member (2), the outer ring of one of the first bearings (537) being fixed on the second gear (532), and the outer ring of the other first bearing (537) being fixed on an end of the lead screw (533) away from the second gear (532).

7. The liftable chin rest according to claim 4, characterized in that: The sliding member (4) is a sleeve, the sliding member (4) is sleeved on the guiding member (2), and the sliding member (4) and the guiding member (2) are slidably connected via a plurality of second bearings (7).

8. The liftable chin rest according to claim 4, characterized in that: A limit ring (8) is provided on the guide member (2) corresponding to the sliding member (4) drivingly connected to the first driving assembly (5), and the nut (534) can be pressed against the limit ring (8).

9. The liftable chin rest according to claim 4, characterized in that: The base (1) is provided with a first switch (11), the first switch (11) being electrically connected to the first driving member (52), the nut (534) being provided with a blocking piece (54), and when the nut (534) is placed in a preset position, the blocking piece (54) triggers the first switch (11) to stop the first driving member (52) from working.

10. A medical testing device, characterized in that: It comprises a detection device body and a liftable chin rest as claimed in any one of claims 1 to 9, wherein the detection device body has an optical front end, the optical front end is arranged on the upper part of the base (1), and the optical front end protrudes between the two guide members (2).

Images