Ophthalmic examination chair

Abstract

The utility model provides an ophthalmic examination chair, including support frame and headrest, one side of headrest is fixedly connected with side clamping plate, headrest top is fixedly connected with swing gear ring, swing gear ring top is rotatably connected with headrest support, one side of headrest support is fixedly connected with swing motor, swing motor power output end gear engages in swing gear ring, headrest support below is fixedly connected with headrest mounting plate, support frame below is fixedly connected with base, support frame both sides are rotatably connected with cushion and backrest respectively, the backrest one side is fixedly connected with limit sleeve, the inside slide of limit sleeve is connected with elevating support, through swing motor drive gear and swing gear ring's engagement, realize patient head angle's automatic adjustment, can accurate control patient eye position, reduce the doctor patient communication time, avoid the interference that patient unconscious movement checks simultaneously, in operation, the doctor only needs through motor control to complete patient head's multi -angle adjustment, check efficiency is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of ophthalmology, and in particular to an ophthalmology examination chair. Background Technology

[0002] An ophthalmology examination chair is an essential piece of equipment used during ophthalmological examinations to provide patients with comfort and proper positioning. It not only affects patient comfort but also directly impacts the efficiency and accuracy of the doctor's examination. Modern ophthalmology examination chairs typically integrate height adjustment, back and leg support adjustment, and some high-end models are even equipped with memory foam seat cushions and backrests to increase patient comfort during prolonged examinations. The chair can be adjusted to a comfortable examination posture as needed. Adjusting the head angle is crucial during ophthalmological examinations. Different examination procedures may require patients to maintain different head positions to ensure the doctor can accurately observe the eye condition or use relevant equipment for measurement and diagnosis.

[0003] A search revealed a Chinese patent publication number CN205391313U, which discloses an ophthalmic examination chair, including a chair frame and a chair back. The rear part of the chair frame is rotatably connected to the chair back via a backrest pivot, and the front part of the chair frame is rotatably connected to a leg support frame via a leg pivot. A rotating lifting device is installed under the chair frame.

[0004] To address the issue that the aforementioned technologies, while capable of fixing and adjusting the patient's head angle, cannot guarantee that doctors can accurately observe the eye condition and use relevant equipment for diagnosis, an ophthalmic examination chair is proposed. Utility Model Content

[0005] In view of this, the present invention aims to provide an ophthalmology examination chair to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: it includes a support frame and a headrest. A side clamp is fixedly connected to one side of the headrest, a swing gear ring is fixedly connected to the top of the headrest, a headrest bracket is rotatably connected above the swing gear ring, a swing motor is fixedly connected to one side of the headrest bracket, the gear at the power output end of the swing motor meshes with the swing gear ring, and a headrest mounting plate is fixedly connected to the bottom of the headrest bracket.

[0007] In some embodiments, a base is fixedly connected to the bottom of the support frame, and a seat cushion and a backrest are rotatably connected to both sides of the support frame.

[0008] In some embodiments, a limiting sleeve is fixedly connected to one side of the backrest, and a lifting bracket is slidably connected to the inner side of the limiting sleeve. Multiple positioning holes are opened on one side of the lifting bracket.

[0009] In some embodiments, a limiting side rod is fixedly connected to one side of the lifting bracket, and the headrest mounting plate is rotatably connected to the lifting bracket below. An arc-shaped adjustment plate three is fixedly connected to the other side of the headrest mounting plate. The arc-shaped adjustment plate three is slidably connected to one side of the limiting side rod, and multiple positioning holes are opened on one side of the arc-shaped adjustment plate three.

[0010] In some embodiments, an arc-shaped adjustment plate two is fixedly connected to the bottom of the seat cushion, and an arc-shaped adjustment plate one is fixedly connected to the backrest. The arc-shaped adjustment plate one and the arc-shaped adjustment plate two are slidably connected to the inner side of the support frame, and positioning pins are inserted into positioning holes on one side of the arc-shaped adjustment plate one, the arc-shaped adjustment plate two and the arc-shaped adjustment plate three.

[0011] In some embodiments, a fixed airbag is fixedly connected to one side of the side clamp, and one end of the multiple fixed airbags is fixedly connected to an air supply pipe through a pipeline. The other end of the air supply pipe is fixedly connected to an air pump, and one side of the air pump is fixedly connected to the bottom of the lifting bracket.

[0012] In some embodiments, a lower support is fixedly connected to one side of the headrest support, and a plurality of support rollers are rotatably connected to one side of the lower support, with the support rollers being rotatably connected to the back of the headrest.

[0013] In some embodiments, a double-ended screw is rotatably connected above the headrest, a clamping motor is fixedly connected to the side of the headrest, the double-ended screw is fixedly connected to the power output end of the clamping motor, a head clamping ring is slidably connected above the headrest, a screw nut is installed on one side of the head clamping ring, and the two ends of the double-ended screw are threadedly connected to the screw nut on the rear side of the head clamping ring.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] 1. An ophthalmic examination chair that automatically adjusts the angle of the patient's head by engaging a gear driven by a swing motor with a swing gear ring. This allows for precise control of the patient's eye position, reducing doctor-patient communication time and preventing interference from unconscious patient movements during the examination. During operation, the doctor only needs to control the motor to adjust the patient's head at multiple angles, significantly improving examination efficiency.

[0016] 2. An ophthalmic examination chair, comprising a three-stage adjustment system of a gas spring, an arc-shaped adjustment plate, and a positioning pin, supporting three-dimensional adjustment of the seat cushion height, backrest angle, and headrest mounting plate. Through the linkage locking of the limiting sleeve, the lifting bracket, and the positioning pin, the chair ensures that the patient maintains a stable posture throughout the examination.

[0017] 3. An ophthalmic examination chair that uses a fixed airbag to inflate and apply flexible pressure to fix the patient's cheeks. The head clamping ring, which is wrapped with sponge, is driven by a bidirectional screw to achieve effective fixation while avoiding pressure injuries caused by hard materials. The introduction of support rollers enhances the smoothness of the headrest rotation and further reduces patient discomfort.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is the main view of the present invention.

[0021] Figure 2 This is a structural diagram of the support frame of this utility model;

[0022] Figure 3 This is a structural diagram of the upper part of the backrest of this utility model;

[0023] Figure 4 This is a structural diagram of the rear side of the headrest of this utility model;

[0024] Figure 5 This is a front view structural diagram of the headrest of this utility model.

[0025] Figure label:

[0026] 1. Support frame; 2. Base; 3. Seat cushion; 4. Backrest; 5. Arc-shaped adjustment plate one; 6. Arc-shaped adjustment plate two; 7. Positioning pin; 8. Limiting sleeve; 9. Lifting bracket; 10. Air pump; 11. Limiting side rod; 12. Headrest mounting plate; 13. Arc-shaped adjustment plate three; 14. Headrest bracket; 15. Swing motor; 16. Swing gear ring; 17. Headrest; 18. Lower side bracket; 19. Support roller; 20. Air supply pipe; 21. Side clamp; 22. Fixed airbag; 23. Head clamping ring; 24. Double-ended screw; 25. Clamping motor. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] Example 1:

[0030] like Figure 1-5 As shown, an ophthalmic examination chair includes a support frame 1 and a headrest 17. The headrest 17 is made of soft material. A side clamp 21 is fixedly connected to one side of the headrest 17. The side clamp 21 is preferably made of plastic. A swing gear ring 16 is fixedly connected to the top of the headrest 17. A headrest bracket 14 is rotatably connected above the swing gear ring 16. A swing motor 15 is fixedly connected to one side of the headrest bracket 14. The gear at the power output end of the swing motor 15 meshes with the swing gear ring 16. A headrest mounting plate 12 is fixedly connected to the bottom of the headrest bracket 14.

[0031] When the patient is sitting in the chair with their head resting on the headrest 17, the patient's cheeks can be secured by the side clamps 21 on both sides. When the patient needs to turn their head to adjust their eye position, the swing motor 15 can be activated. The gear at one end of the swing motor 15 drives the swing gear ring 16 above the headrest 17 to rotate, stopping when the patient's eyes are turned to the position required by the doctor. This can reduce the time cost of repeated communication between the patient and the doctor, and can also prevent the patient's subconscious head movement from affecting normal diagnosis.

[0032] In this embodiment, a base 2 is fixedly connected to the bottom of the support frame 1, and a seat cushion 3 and a backrest 4 are rotatably connected to both sides of the support frame 1. A pneumatic rod is provided above the support frame 1 for adjusting the height. The patient sits on the seat cushion 3 and leans against the backrest 4 to undergo the examination.

[0033] In this embodiment, a limiting sleeve 8 is fixedly connected to one side of the backrest 4, and a lifting bracket 9 is slidably connected to the inner side of the limiting sleeve 8. A plurality of positioning holes are opened on one side of the lifting bracket 9.

[0034] A threaded bolt can be installed on one side of the limiting sleeve 8 to fix the lifting bracket 9, which is used to adjust the height of the upper headrest 17;

[0035] The lifting bracket 9 is fixedly connected to a limiting side rod 11 on one side, and the headrest mounting plate 12 is rotatably connected to the lifting bracket 9 below. An arc-shaped adjustment plate 3 13 is fixedly connected to the other side of the headrest mounting plate 12. The arc-shaped adjustment plate 3 13 is slidably connected to one side of the limiting side rod 11, and multiple positioning holes are opened on one side of the arc-shaped adjustment plate 3 13.

[0036] The headrest mounting plate 12 can be rotated to adjust the angle, and the arc-shaped adjustment plate 13 can fix the angle of the headrest mounting plate 12 to prevent shaking.

[0037] In this embodiment, an arc-shaped adjustment plate 2 6 is fixedly connected to the bottom of the seat cushion 3, and an arc-shaped adjustment plate 1 5 is fixedly connected to the rear side of the backrest 4. The arc-shaped adjustment plate 1 5 and the arc-shaped adjustment plate 2 6 are slidably connected to the inner side of the support frame 1. Positioning pins 7 are inserted into positioning holes on one side of the arc-shaped adjustment plate 1 5, the arc-shaped adjustment plate 2 6, and the arc-shaped adjustment plate 3 13. Multiple positioning pins 7 can be inserted into the support frame 1, the limiting side rod 11, the arc-shaped adjustment plate 1 5, the arc-shaped adjustment plate 2 6, and the arc-shaped adjustment plate 3 13 respectively to fix the positions of the arc-shaped adjustment plate 1 5, the arc-shaped adjustment plate 2 6, and the arc-shaped adjustment plate 3 13, so that the device is in a stable state when the patient is examined.

[0038] In this embodiment: when the patient is sitting in a chair, his head rests on the headrest 17. At this time, the patient's cheeks can be fixed by the side clamps 21 on both sides. Then, when the patient needs to turn his head to adjust the position of his eyes, the swing motor 15 can be started. The gear at one end of the swing motor 15 drives the swing gear ring 16 above the headrest 17 to rotate, so that the patient's eyes can be turned to the position required by the doctor and then stop. This can reduce the time cost of repeated communication between the patient and the doctor, and can also prevent the patient's subconscious head movement from affecting the normal diagnosis.

[0039] The support frame 1 has a pneumatic rod on top for height adjustment. The patient sits on the cushion 3 and leans against the backrest 4 for examination. A bolt can be threaded on one side of the limiting sleeve 8 to fix the lifting bracket 9 for adjusting the height of the headrest 17 above.

[0040] The headrest mounting plate 12 can be rotated to adjust the angle. The arc-shaped adjustment plate 3 13 can fix the angle of the headrest mounting plate 12 to prevent shaking. Multiple positioning pins 7 can be inserted into the support frame 1, the limiting side rod 11, the arc-shaped adjustment plate 1 5, the arc-shaped adjustment plate 2 6 and the arc-shaped adjustment plate 3 13 respectively to fix the positions of the arc-shaped adjustment plate 1 5, the arc-shaped adjustment plate 2 6 and the arc-shaped adjustment plate 3 13, so that the device is in a stable state when the patient is examined.

[0041] Example 2:

[0042] An ophthalmic examination chair, this embodiment is based on embodiment 1 with the following improvements, such as... Figure 1-5 As shown,

[0043] In this embodiment, a fixed airbag 22 is fixedly connected to one side of the side clamp 21. One end of the multiple fixed airbags 22 is fixedly connected to an air supply pipe 20 through a pipe. The other end of the air supply pipe 20 is fixedly connected to an air pump 10. One side of the air pump 10 is fixedly connected to the bottom of the lifting bracket 9.

[0044] The air pump 10 inflates the two side fixation airbags 22, which can fix the patient's cheeks on both sides through the inflated fixation airbags 22, making the patient feel more comfortable and preventing the patient from being injured by pressure.

[0045] In this embodiment, a lower support 18 is fixedly connected to one side of the headrest bracket 14, and a plurality of support rollers 19 are rotatably connected to one side of the lower support 18. The support rollers 19 are rotatably connected to the rear side of the headrest 17. The lower support 18 can support the rotation of the headrest 17 from below and behind the two support rollers 19 on both sides, making the rotation of the headrest 17 more stable.

[0046] In this embodiment, a double-ended screw 24 is rotatably connected above the headrest 17, a clamping motor 25 is fixedly connected to the side of the headrest 17, the double-ended screw 24 is fixedly connected to the power output end of the clamping motor 25, a head clamping ring 23 is slidably connected above the headrest 17, a screw nut is installed on one side of the head clamping ring 23, and the two ends of the double-ended screw 24 are threaded to the screw nut on the rear side of the head clamping ring 23.

[0047] The head clamping ring 23 is preferably a plastic plate wrapped with sponge on the outside, which can move inward or outward simultaneously under the drive of the double-headed screw 24 to clamp and fix the upper part of the patient's head.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An ophthalmic examination chair, comprising a support frame (1) and a headrest (17), characterized in that: A side clamp (21) is fixedly connected to one side of the headrest (17), a swing gear ring (16) is fixedly connected to the top of the headrest (17), a headrest bracket (14) is rotatably connected above the swing gear ring (16), a swing motor (15) is fixedly connected to one side of the headrest bracket (14), the gear at the power output end of the swing motor (15) meshes with the swing gear ring (16), and a headrest mounting plate (12) is fixedly connected below the headrest bracket (14).

2. An ophthalmic examination chair according to claim 1, characterized in that: A base (2) is fixedly connected to the bottom of the support frame (1), and a seat cushion (3) and a backrest (4) are rotatably connected to both sides of the support frame (1).

3. An ophthalmic examination chair according to claim 2, characterized in that: A limiting sleeve (8) is fixedly connected to one side of the backrest (4), and a lifting bracket (9) is slidably connected to the inside of the limiting sleeve (8). Multiple positioning holes are opened on one side of the lifting bracket (9).

4. An ophthalmic examination chair according to claim 3, characterized in that: The lifting bracket (9) is fixedly connected to a limiting side rod (11) on one side, and the headrest mounting plate (12) is rotatably connected to the lifting bracket (9) below. An arc-shaped adjustment plate (13) is fixedly connected to the other side of the headrest mounting plate (12). The arc-shaped adjustment plate (13) is slidably connected to one side of the limiting side rod (11), and multiple positioning holes are opened on one side of the arc-shaped adjustment plate (13).

5. An ophthalmic examination chair according to claim 2, characterized in that: The bottom of the seat cushion (3) is fixedly connected to an arc-shaped adjustment plate two (6), and the backrest (4) is fixedly connected to an arc-shaped adjustment plate one (5). The arc-shaped adjustment plate one (5) and the arc-shaped adjustment plate two (6) are slidably connected to the inside of the support frame (1). Positioning pins (7) are inserted into the positioning holes on one side of the arc-shaped adjustment plate one (5), the arc-shaped adjustment plate two (6) and the arc-shaped adjustment plate three (13).

6. An ophthalmic examination chair according to claim 1, characterized in that: One side of the side clamp (21) is fixedly connected to a fixed airbag (22), and one end of the multiple fixed airbags (22) is fixedly connected to an air supply pipe (20) through a pipe. The other end of the air supply pipe (20) is fixedly connected to an air pump (10), and one side of the air pump (10) is fixedly connected to the bottom of the lifting bracket (9).

7. An ophthalmic examination chair according to claim 1, characterized in that: The headrest bracket (14) is fixedly connected to a lower bracket (18) on one side, and a plurality of support rollers (19) are rotatably connected to one side of the lower bracket (18), with the support rollers (19) rotatably connected to the back of the headrest (17).

8. An ophthalmic examination chair according to claim 7, characterized in that: A double-ended screw (24) is rotatably connected above the headrest (17), and a clamping motor (25) is fixedly connected to the side of the headrest (17). The double-ended screw (24) is fixedly connected to the power output end of the clamping motor (25). A head clamping ring (23) is slidably connected above the headrest (17). A screw nut is installed on one side of the head clamping ring (23), and the two ends of the double-ended screw (24) are threaded to the screw nut on the back side of the head clamping ring (23).

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