Head bracket of optometry unit

Abstract

The head bracket of the optometry unit comprises two groups of supporting arms, a jaw support structure is arranged between the two groups of supporting arms, sliding grooves are formed in the side walls, close to each other, of the two groups of supporting arms, a head fixing device is arranged at the tops of the supporting arms, and a first connecting block is arranged at the top of the head fixing device. By designing the jaw support structure and the head fixing device, during use, the forehead of a patient is attached to the forehead pad, the jaw is located on the jaw support block, and then the driving motor is started to drive the lead screw to rotate in the supporting arm, so that canthus lines of the patient are adjusted to be flush with standard lines on the supporting arm, the applicability to patients of different age groups is improved, and the operation is convenient. After the height adjustment of the jaw supporting block is completed, the electric push rod is started to drive the pressing plate and the silica gel pads to approach the face of the patient until the two groups of silica gel pads clamp the face of the patient, so that the situation that the accuracy of a diopter examination result is influenced due to head movement of the patient in the optometry process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brackets, in particular to a head bracket of an optometry instrument. Background Art

[0002] Optometry is the main method to identify refractive errors, and it accounts for a considerable amount of work in clinical work. In the past, the traditional retinal retinoscopy method was time-consuming, labor-intensive, and extremely difficult to master. After the 1970s, a new type of automatic ophthalmometer came into being, using infrared, electronic, and computing technologies to check the focusing of light after it enters the eyeball.

[0003] The ophthalmometer can be used for diagnostic optometry for soft contact lenses. It does not require mydriasis and can quickly measure the degree of refraction. The ophthalmometer results are all automatically printed without conversion. It usually takes a few seconds to a few minutes to measure a patient, and can quickly measure the degree of refractive error, providing more accurate refractive power and pupillary distance for lens correction.

[0004] The accuracy of current ophthalmometers is affected by many factors when in use, such as poor coordination between the patient's head and eyes, which move around, and insufficient focus on the target in the ophthalmometer, resulting in insufficient relaxation and adjustment, which in turn affects the accuracy of the refractive test results. In addition, when the ophthalmometer bracket is in use, the patient's eye corner line needs to be aligned with the standard line of the bracket to ensure that the patient's glasses are located directly in front of the ophthalmometer. However, due to the different age groups of optometry patients, the bracket is inconvenient to adjust when in use.

[0005] Therefore, in response to the above problems, we propose a head bracket for an ophthalmometer. Utility Model Content

[0006] The utility model aims to provide a head bracket of an optometry instrument to solve the problems raised by the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a head bracket of an ophthalmometer, comprising two groups of support arms, a jaw support structure is arranged between the two groups of support arms, a slide groove is provided on the side walls of the two groups of support arms close to each other, a head fixing device is arranged on the top of the support arm, a first connecting block is arranged on the top of the head fixing device, an arc block is fixedly installed between the two groups of the first connecting blocks, and a forehead pad is fixedly installed on the front side wall of the arc block.

[0008] As a further description of the present invention: the jaw support structure includes a jaw support block, and connecting rods are fixedly installed on the outer walls of both sides of the jaw support block, and a sliding block that can slide up and down inside a slide groove is fixedly installed on one end of the connecting rod away from the jaw support block.

[0009] As a further description of the utility model: a screw rod is threadedly connected inside the slider, the screw rod is rotatably connected to the support arm, a drive motor is fixedly installed on one end of the screw rod, a fixing ring is fixedly sleeved on the drive motor, and a fixing hole is opened inside the fixing ring.

[0010] As a further description of the utility model: the head fixing device includes a second connecting block whose two ends are respectively fixedly connected to the support arm and the first connecting block, an electric push rod is fixedly installed inside the second connecting block, and a pressure plate is fixedly installed at the output end of the electric push rod.

[0011] As a further description of the utility model: the side walls of the two groups of pressure plates close to each other are fixedly installed with semicircular silicone pads, and the side walls of the two groups of pressure plates away from each other are fixedly installed with two groups of limit rods, the limit rods are located on the upper and lower sides of the electric push rod, and the second connecting block is provided with a circular hole for the limit rod to slide.

[0012] As a further description of the utility model: a connecting seat is fixedly installed at the bottom of the two groups of support arms, a sealing door is hinged on the front of the connecting seat, a handle groove is provided on the front side wall of the sealing door, a connecting plate is fixedly installed on the back side wall of the connecting seat, and the ophthalmometer body is arranged on the end of the connecting plate away from the connecting seat.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model designs a jaw support structure and a head fixing device on a head bracket of an optometre. When in use, the patient's forehead is placed on the forehead pad and the chin is located on the jaw support block. Then, a driving motor is started to drive a screw rod to rotate inside a support arm, thereby adjusting the patient's eye corner line to be flush with a standard line on the support arm, thereby improving the applicability to patients of different age groups. When the jaw support block height adjustment is completed, an electric push rod is started to drive a pressing plate and a silicone pad to approach the patient's face until the two groups of silicone pads clamp the patient's face in the middle, thereby reducing the situation in which the accuracy of the refractive test result is affected by the patient's head moving around during the optometry process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the jaw support structure of the utility model;

[0017] Figure 3 It is a schematic structural diagram of the head fixing device of the utility model.

[0018] In the figure: 1. support arm; 2. jaw support structure; 201. jaw support block; 202. connecting rod; 203. slider; 204. screw rod; 205. drive motor; 206. fixing ring; 3. slide groove; 4. head fixing device; 401. second connecting block; 402. electric push rod; 403. pressure plate; 404. silicone pad; 405. limit rod; 5. first connecting block; 6. arc block; 7. forehead pad; 8. connecting seat; 9. sealing door; 10. connecting plate; 11. ophthalmometer body. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 3 The utility model provides a technical solution: a head bracket of an ophthalmometer, comprising two groups of support arms 1, a jaw support structure 2 is arranged between the two groups of support arms 1, a slide groove 3 is opened on the side walls of the two groups of support arms 1 close to each other, a head fixing device 4 is arranged on the top of the support arm 1, a first connecting block 5 is arranged on the top of the head fixing device 4, an arc block 6 is fixedly installed between the two groups of first connecting blocks 5, and a forehead pad 7 is fixedly installed on the front side wall of the arc block 6.

[0021] In this embodiment, the jaw support structure 2 includes a jaw support block 201 , and connecting rods 202 are fixedly installed on the outer walls of both sides of the jaw support block 201 . A sliding block 203 that can slide up and down inside the slide groove 3 is fixedly installed on one end of the connecting rod 202 away from the jaw support block 201 .

[0022] During specific use: after the screw rod 204 rotates, it can drive the slider 203 to slide up and down inside the slide groove 3, so as to adjust the height of the jaw support block 201 to adapt to patients of different age groups.

[0023] In this embodiment: the slider 203 is internally threaded with a screw rod 204, the screw rod 204 is rotatably connected to the support arm 1, a driving motor 205 is fixedly mounted on one end of the screw rod 204, a fixing ring 206 is fixedly sleeved on the driving motor 205, and a fixing hole is opened inside the fixing ring 206.

[0024] When used specifically, the driving motor 205 is started to drive the screw rod 204 to rotate inside the support arm 1 , so as to provide stable power for the rotation of the screw rod 204 .

[0025] In this embodiment: the head fixing device 4 includes a second connecting block 401 whose two ends are fixedly connected to the support arm 1 and the first connecting block 5 respectively, an electric push rod 402 is fixedly installed inside the second connecting block 401, and a pressure plate 403 is fixedly installed at the output end of the electric push rod 402.

[0026] When used specifically: after the electric push rod 402 is started, it can drive the two sets of pressure plates 403 to approach the patient's face to fix the patient's head, thereby reducing the situation in which the accuracy of the refractive test result is affected by the patient's head moving during the eye examination process.

[0027] In this embodiment: the side walls of the two groups of pressure plates 403 close to each other are fixedly installed with semicircular silicone pads 404, and the side walls of the two groups of pressure plates 403 away from each other are fixedly installed with two groups of limiting rods 405, the limiting rods 405 are located on the upper and lower sides of the electric push rod 402, and a circular hole for the limiting rod 405 to slide is opened inside the second connecting block 401.

[0028] During specific use: the silicone pad 404 can prevent the surface pressure plate 403 from squeezing the patient's face excessively to support injuries; the limiting rod 405 can slide inside the second connecting block 401 during the movement of the pressure plate 403 to improve the flatness of the pressure plate 403 during movement.

[0029] In this embodiment: a connecting seat 8 is fixedly installed at the bottom of the support arm 1, a sealing door 9 is hinged on the front of the connecting seat 8, a handle groove is provided on the front side wall of the sealing door 9, a connecting plate 10 is fixedly installed on the back side wall of the connecting seat 8, and an ophthalmometer body 11 is provided on the end of the connecting plate 10 away from the connecting seat 8.

[0030] When in use, the sealing door 9 facilitates the staff to inspect and repair the driving motor 205 inside the connecting seat 8 at a later time, and the refraction test of the patient can be performed after the ophthalmometer body 11 is started.

[0031] Working principle: When in use, the patient's forehead is placed on the forehead pad 7 and the chin is located on the jaw support block 201. Then the drive motor 205 is started to drive the screw rod 204 to rotate inside the support arm 1, so as to adjust the patient's eye corner line to be flush with the standard line on the support arm 1, thereby improving the applicability to patients of different age groups. When the height adjustment of the jaw support block 201 is completed, the electric push rod 402 is started to drive the pressure plate 403 and the silicone pad 404 to move closer to the patient's face until the two groups of silicone pads 404 clamp the patient's face in the middle, thereby reducing the situation in which the patient's head moves around during the eye examination, affecting the accuracy of the refractive examination results.

[0032] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to 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. A head bracket for an ophthalmometer, comprising two sets of support arms (1), characterized in that: A jaw support structure (2) is provided between the two groups of support arms (1); a slide groove (3) is provided on the side walls of the two groups of support arms (1) close to each other; a head fixing device (4) is provided on the top of the support arm (1); a first connecting block (5) is provided on the top of the head fixing device (4); an arc block (6) is fixedly installed between the two groups of the first connecting blocks (5); and a forehead pad (7) is fixedly installed on the front side wall of the arc block (6).

2. The head bracket of an optometry instrument according to claim 1, characterized in that: The jaw support structure (2) comprises a jaw support block (201), connecting rods (202) are fixedly mounted on the outer walls of both sides of the jaw support block (201), and a sliding block (203) which can slide up and down inside the sliding groove (3) is fixedly mounted on one end of the connecting rod (202) away from the jaw support block (201).

3. The head bracket of an optometry instrument according to claim 2, characterized in that: The slider (203) is internally threadedly connected with a screw rod (204), the screw rod (204) is rotatably connected to the support arm (1), a driving motor (205) is fixedly mounted on one end of the screw rod (204), a fixing ring (206) is fixedly sleeved on the driving motor (205), and a fixing hole is opened inside the fixing ring (206).

4. The head bracket of an optometry instrument according to claim 1, characterized in that: The head fixing device (4) comprises a second connecting block (401) whose two ends are respectively fixedly connected to the support arm (1) and the first connecting block (5); an electric push rod (402) is fixedly installed inside the second connecting block (401); and a pressure plate (403) is fixedly installed at the output end of the electric push rod (402).

5. The head bracket of an optometry instrument according to claim 4, characterized in that: A semicircular silicone pad (404) is fixedly installed on the side walls of the two groups of pressing plates (403) that are close to each other, and two groups of limiting rods (405) are fixedly installed on the side walls of the two groups of pressing plates (403) that are away from each other. The limiting rods (405) are located on the upper and lower sides of the electric push rod (402), and a circular hole for the limiting rod (405) to slide is opened inside the second connecting block (401).

6. The head bracket of an optometry instrument according to claim 1, characterized in that: A connecting seat (8) is fixedly mounted at the bottom of the two groups of support arms (1); a sealing door (9) is hingedly mounted on the front of the connecting seat (8); a handle groove is provided on the front side wall of the sealing door (9); a connecting plate (10) is fixedly mounted on the back side wall of the connecting seat (8); and an ophthalmometer body (11) is provided at one end of the connecting plate (10) away from the connecting seat (8).

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