Ophthalmic examination seat

Abstract

The utility model discloses an ophthalmic examination seat, which comprises a seat body, a height adjusting mechanism and an examination auxiliary mechanism, the height adjusting mechanism is arranged at the top of the seat body and used for adjusting the height of the examination auxiliary mechanism, and the examination auxiliary mechanism is arranged at the top of the height adjusting mechanism and used for adjusting the height of the examination auxiliary mechanism. The examination assisting mechanism is used for assisting a user to examine vision, the height adjusting mechanism comprises a mounting plate, the bottom of the mounting plate is fixedly connected with a sliding rod, the bottom of the sliding rod penetrates through the seat body, the sliding rod is slidably connected with the seat body, and the side wall of the seat body is in threaded connection with a bolt. According to the examination auxiliary device, the eyes of a user can be automatically shielded through the arranged shielding plate, meanwhile, the height of the shielding plate and the distance between the shielding plate and the face of the user can be adjusted, and therefore the application range of the examination auxiliary device can be widened.

Description

Technical Field

[0001] The utility model relates to the field of examination seats, in particular to an ophthalmological examination seat. Background Art

[0002] Vision refers to the ability of the retina to distinguish images. The quality of vision is determined by the ability of the retina to distinguish images. Generally, the results of vision tests are divided into three types: myopia, hyperopia, and amblyopia. Among them, the results of adult tests are only divided into myopia and hyperopia. Ophthalmic vision tests are generally performed by doctors using a vision chart to test patients.

[0003] The Chinese utility model patent with publication number CN214806487U discloses an ophthalmic vision test chair, which belongs to the field of medical equipment technology. The ophthalmic vision test chair includes an "L"-shaped seat body; a fixed seat, which is fixed to the upper part of one side end of the seat body, and one end of the fixed seat is provided with a plurality of evenly distributed L-shaped grooves; an L-shaped block, the L-shaped block and the L-shaped grooves match each other, the L-shaped block is movably inserted into one of the L-shaped grooves, and a socket is provided on the top of the fixed seat, and the socket passes through the L-shaped block downward and extends to the bottom of the fixed seat.

[0004] However, the above patent has the following shortcomings:

[0005] 1. The above patent does not have a mechanism for covering the eyes, so manual assistance is needed to cover the user's eyes. However, different users do not cover their eyes in a standardized manner, which may cause certain errors in detection;

[0006] 2. The above patent can insert the L-shaped block into the L-shaped groove that matches the position of the head of the vision tester according to the different heights of the vision tester sitting on the seat body. At this time, the head of the vision tester can be fixed by the clamping mechanism, so that the head is not easy to shake when the vision is tested. However, in the above patent, the L-shaped grooves are distributed at large intervals, so that the clamping mechanism cannot be infinitely adjusted, thereby reducing the scope of application of the device. Utility Model Content

[0007] The purpose of the utility model is to provide an ophthalmic examination chair, which can automatically shield the user's eyes through the set shielding plate by setting an examination auxiliary device. At the same time, the height of the shielding plate and the distance between the shielding plate and the user's face can be adjusted, which is beneficial to improve the application scope of the device and solve the above-mentioned deficiencies in the technology.

[0008] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: an ophthalmic examination chair, comprising a chair body, a height adjustment mechanism and an examination auxiliary mechanism;

[0009] The height adjustment mechanism is arranged on the top of the seat body, and is used to adjust the height of the inspection auxiliary mechanism;

[0010] The inspection auxiliary mechanism is arranged on the top of the height adjustment mechanism, and the inspection auxiliary mechanism is used to assist the user in inspecting his vision;

[0011] The height adjustment mechanism comprises a mounting plate, a sliding rod is fixedly connected to the bottom of the mounting plate, the bottom of the sliding rod passes through the seat body, the sliding rod is slidably connected to the seat body, a bolt is threadedly connected to the side wall of the seat body, and the bolt matches the sliding rod;

[0012] The mounting plate is provided with limiting grooves running through the inside thereof, the limiting grooves are provided in two groups, and the number of limiting grooves in each group is provided in two. Both sides of the mounting plate are provided with fixing frames, the fixing frames are provided in a U-shape, the fixing frames are bent, the two ends of the fixing frames are staggered, and the two ends of the fixing frames are respectively slidably connected with two limiting grooves in different planes;

[0013] A threaded rod is rotatably connected to the middle of the mounting plate, a knob is fixedly connected to the end of the threaded rod, the outer side of the threaded rod is threadedly connected to a limit frame, the limit frame is set to be U-shaped, the end of the limit frame passes through the limit slot, and the end of the limit frame matches the fixed frame.

[0014] By adjusting the extension length of the slide bar, the height of the mounting plate can be adjusted, and then the height of the inspection auxiliary mechanism can be adjusted, and then the position of the slide bar can be fixed by rotating the bolt;

[0015] The heads of different users can be clamped by adjusting the distance between the two fixing frames, and then the threaded rod can be rotated by turning the knob to drive the limiting frame on its outer side to move along the central axis of the threaded rod, so that the two ends of the limiting frame can squeeze the two fixing frames respectively, so that the fixing frames can be fixed. At the same time, the fixing frame is set to be U-shaped to avoid squeezing the user's ears and causing discomfort to the user.

[0016] Preferably, the inspection auxiliary mechanism includes a first adjusting component and a second adjusting component.

[0017] Preferably, the first adjustment component comprises a fixing rod, a connecting block is fixedly connected between the fixing rod and the mounting plate, and a mounting groove is provided through the middle of the fixing rod;

[0018] Two limit shafts are fixedly connected to the inner wall of the installation groove, and a stopper rod is movably sleeved on the outer sides of the two limit shafts. The two stopper rods are tilted, and the bottoms of the two stopper rods are hingedly provided with the same stopper block;

[0019] The bottom of the stop block is fixedly connected with a through rod, the bottom of the through rod penetrates the fixed rod, the through rod is slidably connected with the fixed rod, the bottom of the through rod is fixedly connected with a pull ring, the outer side of the through rod is sleeved with an extrusion spring, the top of the extrusion spring is against the stop block, and the bottom of the extrusion spring is against the installation groove;

[0020] The pull ring can be used to pull the through rod and the stop block downward to squeeze and compress the squeezing spring. At the same time, the stop block will simultaneously drive one end of the two stop rods to move downward. At this time, the two stop rods will respectively deflect with the two limit shafts as the axis. At this time, the other end of the limit shaft will shrink into the installation groove. At this time, the height of the adjustment frame sleeved on the outside of the fixed rod can be moved up and down, thereby adjusting the height of the shielding plate;

[0021] After the pull ring is released, the spring rebounds and drives the stop block to move upward, thereby driving the two stop rods to reset. At this time, the ends of the stop rods will squeeze the outer wall of the adjustment frame, thereby fixing the adjustment frame.

[0022] Preferably, the second adjustment component comprises an adjustment frame, the adjustment frame is sleeved on the outside of the fixed rod, the adjustment frame is slidably connected to the fixed rod, a connecting rod is fixedly connected to the top of the adjustment frame, the connecting rod is arc-shaped, a connecting shaft is penetrated at the end of the connecting rod, the connecting shaft is slidably connected to the connecting rod, and a positioning frame is fixedly connected to the bottom of the connecting shaft;

[0023] The end of the connecting rod is provided with a slide groove, the slide groove is penetrated by a through groove, an extrusion block is slidably arranged inside the slide groove, the side wall of the extrusion block is fixedly connected with an extension rod, the extension rod is penetrated by the through groove, a return spring is arranged on the top of the extrusion block, the bottom of the return spring abuts against the extrusion block, the top of the return spring abuts against the inner wall of the slide groove, and the bottom of the extrusion block matches the positioning frame;

[0024] The outer periphery of the connecting shaft is rotatably connected with a shielding plate;

[0025] By pulling the extension rod to drive the extrusion block to move upward, the top of the extrusion block can be squeezed and compressed the return spring, and the end of the extrusion block will be separated from the positioning frame. At this time, the positioning frame can be slid to adjust the distance between the shielding plate and the user's eyes. The shielding plate can be rotated to adjust the shielding position of the shielding plate, thereby shielding the user's two eyes respectively.

[0026] Preferably, a friction block is fixedly connected to the top of the push rod, and the friction block is made of rubber material;

[0027] The friction force between the push rod and the inner wall of the adjustment frame can be increased by arranging the friction block.

[0028] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0029] 1. By setting up the inspection auxiliary device, the user's eyes can be automatically shielded by the shielding plate, and the height of the shielding plate and the distance between the shielding plate and the user's face can be adjusted, which is conducive to improving the application range of the device;

[0030] 2. The height of the mounting plate can be infinitely adjusted by setting an adjustment mechanism, and then the user's head is clamped by two fixed frames, so as to prevent the user from shaking his head during the vision test, which may cause deviations in the results of the vision test. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0034] Figure 3 It is a partial structural cross-sectional view of the first adjusting component of the utility model;

[0035] Figure 4 It is a partial structural sectional view of the second adjusting component of the utility model;

[0036] Figure 5 For this utility model Figure 2 A magnified view of the structure of part A;

[0037] Figure 6 For this utility model Figure 4 Enlarged view of the structure of part B.

[0038] Description of reference numerals:

[0039] 1. Seat body;

[0040] 2. Adjustment mechanism; 21. Mounting plate; 22. Sliding rod; 23. Bolt; 24. Limiting groove; 25. Fixing frame; 26. Threaded rod; 27. Knob; 28. Limiting frame;

[0041] 3. Check auxiliary institutions;

[0042] 31. first adjusting component; 311. fixing rod; 312. connecting block; 313. mounting groove; 314. limiting shaft; 315. stop rod; 316. stop block; 317. through rod; 318. pull ring; 319. extrusion spring;

[0043] 32. second adjusting component; 321. adjusting frame; 322. connecting rod; 323. connecting shaft; 324. positioning frame; 325. slide groove; 326. through groove; 327. extrusion block; 328. extension rod; 329. return spring; 3210. shielding plate;

[0044] 4. Friction block. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] The utility model provides Figure 1-6 An ophthalmic examination chair shown includes a chair body 1, a height adjustment mechanism 2 and an examination auxiliary mechanism 3;

[0047] The height adjustment mechanism 2 is arranged on the top of the seat body 1, and the height adjustment mechanism 2 is used to adjust the height of the inspection auxiliary mechanism 3;

[0048] The inspection auxiliary mechanism 3 is arranged on the top of the height adjustment mechanism 2, and the inspection auxiliary mechanism 3 is used to assist the user to check the vision;

[0049] The height adjustment mechanism 2 includes a mounting plate 21, a slide bar 22 is fixedly connected to the bottom of the mounting plate 21, the bottom of the slide bar 22 passes through the seat body 1, the slide bar 22 is slidably connected to the seat body 1, and a bolt 23 is threadedly connected to the side wall of the seat body 1, and the bolt 23 matches the slide bar 22;

[0050] Limiting grooves 24 are provided inside the mounting plate 21, and the limiting grooves 24 are provided in two groups, and the number of limiting grooves 24 in each group is provided in two groups. Fixed frames 25 are provided on both sides of the mounting plate 21, and the fixed frames 25 are provided in a U-shape. The fixed frames 25 are bent, and the two ends of the fixed frames 25 are staggered, and the two ends of the fixed frames 25 are respectively slidably connected with the two limiting grooves 24 in different planes;

[0051] A threaded rod 26 is rotatably connected to the middle of the mounting plate 21 , a knob 27 is fixedly connected to the end of the threaded rod 26 , the outer side of the threaded rod 26 is threadedly connected to a limit frame 28 , the limit frame 28 is set to be U-shaped, the end of the limit frame 28 passes through the limit groove 24 , and the end of the limit frame 28 matches the fixed frame 25 .

[0052] Furthermore, in the above technical solution, the inspection auxiliary mechanism 3 includes a first adjustment component 31 and a second adjustment component 32 .

[0053] Further, in the above technical solution, the first adjustment component 31 includes a fixing rod 311, a connecting block 312 is fixedly connected between the fixing rod 311 and the mounting plate 21, and a mounting groove 313 is provided through the middle of the fixing rod 311;

[0054] Two limiting shafts 314 are fixedly connected to the inner wall of the installation groove 313, and the outer sides of the two limiting shafts 314 are movably connected with a stopper 315, and the two stopper rods 315 are both inclined, and the bottoms of the two stopper rods 315 are hingedly provided with the same stopper block 316;

[0055] A through rod 317 is fixedly connected to the bottom of the stop block 316, and the bottom of the through rod 317 passes through the fixed rod 311. The through rod 317 is slidably connected to the fixed rod 311, and a pull ring 318 is fixedly connected to the bottom of the through rod 317. An extrusion spring 319 is sleeved on the outside of the through rod 317. The top of the extrusion spring 319 is against the stop block 316, and the bottom of the extrusion spring 319 is against the installation groove 313.

[0056] Further, in the above technical solution, the second adjustment component 32 includes an adjustment frame 321, the adjustment frame 321 is sleeved on the outside of the fixed rod 311, the adjustment frame 321 is slidably connected to the fixed rod 311, a connecting rod 322 is fixedly connected to the top of the adjustment frame 321, the connecting rod 322 is set in an arc shape, a connecting shaft 323 is penetrated at the end of the connecting rod 322, the connecting shaft 323 is slidably connected to the connecting rod 322, and a positioning frame 324 is fixedly connected to the bottom of the connecting shaft 323;

[0057] A slide groove 325 is provided at the end of the connecting rod 322, and a through groove 326 is provided through the slide groove 325. An extrusion block 327 is slidably provided inside the slide groove 325. An extension rod 328 is fixedly connected to the side wall of the extrusion block 327. The extension rod 328 is provided through the through groove 326. A return spring 329 is provided on the top of the extrusion block 327. The bottom of the return spring 329 abuts against the extrusion block 327. The top of the return spring 329 abuts against the inner wall of the slide groove 325, and the bottom of the extrusion block 327 matches the positioning frame 324.

[0058] The outer periphery of the connecting shaft 323 is rotatably connected with a shielding plate 3210 .

[0059] Furthermore, in the above technical solution, a friction block 4 is fixedly connected to the top of the support rod 315, and the friction block 4 is made of rubber material.

[0060] How this utility works:

[0061] Refer to the instruction manual Figure 1-6 When the device is in use, the height of the mounting plate 21 can be adjusted by adjusting the extension length of the slide bar 22, and then the height of the inspection auxiliary mechanism 3 can be adjusted, and then the position of the slide bar 22 can be fixed by rotating the bolt 23;

[0062] By adjusting the distance between the two fixing frames 25, the heads of different users can be clamped, so as to prevent the user's head from shaking during the vision test so that both eyes are not blocked, thereby affecting the measurement result of vision. Then, the threaded rod 26 can be rotated by the knob 27 to drive the outer limit frame 28 to move along the central axis of the threaded rod 26, so that the two ends of the limit frame 28 can squeeze the two fixing frames 25 respectively, so that the fixing frames 25 can be fixed. At the same time, the fixing frame 25 is set to be U-shaped, which can avoid squeezing the user's ears and causing discomfort to the user.

[0063] Refer to the instruction manual Figure 1-6 When the device is in use, the pull ring 318 can pull the through rod 317 and the stop block 316 downward to squeeze and compress the squeezing spring 319. At the same time, the stop block 316 will simultaneously drive one end of the two stop rods 315 to move downward. At this time, the two stop rods 315 are respectively deflected with the two limit shafts 314 as the axis. At this time, the other end of the limit shaft will shrink into the installation groove 313. At this time, the height of the adjustment frame 321 sleeved on the outside of the fixed rod 311 can be moved up and down, thereby adjusting the height of the shielding plate 3210.

[0064] After the pull ring 318 is released, the squeezing spring 319 rebounds and drives the stop block 316 to move upward, thereby driving the two stop rods 315 to reset. At this time, the end of the stop rod 315 will squeeze the outer wall of the adjustment frame 321, so that the adjustment frame 321 can be fixed. By pulling the extension rod 328 to drive the squeezing block 327 to move upward, the top of the squeezing block 327 can squeeze and compress the reset spring 329. At the same time, the end of the squeezing block 327 will be separated from the positioning frame 324. At this time, the positioning frame 324 can be slid to adjust the distance between the shielding plate 3210 and the user's eyes. By rotating the shielding plate 3210, the shielding position of the shielding plate 3210 can be adjusted to shield the user's two eyes respectively.

[0065] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0066] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ophthalmic examination chair, comprising a chair body (1), characterized in that: It comprises a height adjustment mechanism (2) and an inspection auxiliary mechanism (3); The height adjustment mechanism (2) is arranged on the top of the seat body (1), and the height adjustment mechanism (2) is used to adjust the height of the inspection auxiliary mechanism (3); The inspection auxiliary mechanism (3) is arranged on the top of the height adjustment mechanism (2), and the inspection auxiliary mechanism (3) is used to assist the user in inspecting his / her eyesight; The height adjustment mechanism (2) comprises a mounting plate (21), the bottom of the mounting plate (21) is fixedly connected to a slide rod (22), the bottom of the slide rod (22) is arranged to penetrate the seat body (1), the slide rod (22) is slidably connected to the seat body (1), the side wall of the seat body (1) is threadedly connected to a bolt (23), and the bolt (23) matches the slide rod (22); The mounting plate (21) is provided with limiting grooves (24) running through the inside thereof, the limiting grooves (24) are provided in two groups, and the number of limiting grooves (24) in each group is provided in two groups; fixed frames (25) are provided on both sides of the mounting plate (21); the fixed frames (25) are provided in a U-shape, the fixed frames (25) are bent, the two ends of the fixed frames (25) are staggered, and the two ends of the fixed frames (25) are respectively slidably connected to the two limiting grooves (24) in different planes; A threaded rod (26) is rotatably connected to the middle of the mounting plate (21), a knob (27) is fixedly connected to the end of the threaded rod (26), the outer side of the threaded rod (26) is threadably connected to a limit frame (28), the limit frame (28) is set to be U-shaped, the end of the limit frame (28) passes through the limit groove (24), and the end of the limit frame (28) matches the fixed frame (25).

2. An ophthalmic examination chair according to claim 1, characterized in that: The inspection auxiliary mechanism (3) comprises a first adjustment component (31) and a second adjustment component (32).

3. An ophthalmic examination chair according to claim 2, characterized in that: The first adjustment component (31) comprises a fixing rod (311), a connecting block (312) is fixedly connected between the fixing rod (311) and the mounting plate (21), and a mounting groove (313) is provided through the middle of the fixing rod (311); Two limiting shafts (314) are fixedly connected to the inner wall of the installation groove (313); abutment rods (315) are movably sleeved on the outer sides of the two limiting shafts (314); the two abutment rods (315) are inclined; and the bottoms of the two abutment rods (315) are hingedly provided with a same abutment block (316); The bottom of the stop block (316) is fixedly connected with a through rod (317), the bottom of the through rod (317) penetrates the fixed rod (311), the through rod (317) is slidably connected to the fixed rod (311), the bottom of the through rod (317) is fixedly connected with a pull ring (318), the outer side of the through rod (317) is sleeved with an extrusion spring (319), the top of the extrusion spring (319) is against the stop block (316), and the bottom of the extrusion spring (319) is against the mounting groove (313).

4. An ophthalmic examination chair according to claim 3, characterized in that: The second adjusting component (32) comprises an adjusting frame (321), the adjusting frame (321) is sleeved on the outside of the fixing rod (311), the adjusting frame (321) is slidably connected to the fixing rod (311), a connecting rod (322) is fixedly connected to the top of the adjusting frame (321), the connecting rod (322) is configured to be arc-shaped, a connecting shaft (323) is penetrated through the end of the connecting rod (322), the connecting shaft (323) is slidably connected to the connecting rod (322), and a positioning frame (324) is fixedly connected to the bottom of the connecting shaft (323); The end of the connecting rod (322) is provided with a slide groove (325), and a through groove (326) is provided through the slide groove (325). An extrusion block (327) is slidably provided inside the slide groove (325). The side wall of the extrusion block (327) is fixedly connected with an extension rod (328), and the extension rod (328) is provided through the through groove (326). A return spring (329) is provided on the top of the extrusion block (327), and the bottom of the return spring (329) is against the extrusion block (327). The top of the return spring (329) is against the inner wall of the slide groove (325), and the bottom of the extrusion block (327) matches the positioning frame (324); The outer periphery of the connecting shaft (323) is rotatably connected to a shielding plate (3210).

5. The ophthalmic examination chair according to claim 3, characterized in that: A friction block (4) is fixedly connected to the top of the push rod (315), and the friction block (4) is made of rubber material.

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