Self-locking mouth mirror retractor

Abstract

The utility model discloses a self -locking oral cavity examines and opens apart with the spreader, related to medical instrument technical field, including slide plate, handheld board and damper, the upper connected with lower bracing plate of handheld board, one side of handheld board is installed with slide plate, the top of slide plate is connected with upper bracing plate, the inboard of lower bracing plate and upper bracing plate all is installed with disposable mouthguard, the inner wall of one side of lower bracing plate is installed with gear, and the inner wall of gear one side slide plate is engaged and is installed with rack. The utility model utilizes the disposable mouthguard to be put into lower bracing plate and upper bracing plate, is positioned through the pressing into positioning groove of elastic rubber block, through the elastic rubber block for elastic rubber, makes the pressing elastic rubber block downwards deformable into positioning groove, and elastic rubber block is not easy to fall off, through the sticking of hair and thorn, the positioning installation of disposable mouthguard is convenient, has solved the problem of inconvenient positioning installation.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a self-locking oral examination retractor. Background Technology

[0002] Oral examinations are crucial for the diagnosis of many diseases. Oral examinations require the use of retractors, which are tools used to keep the patient's mouth open. These retractors are essential medical devices in clinical oral treatment. Retractors come in various styles and applications, suitable for oral examinations, treatment of dental diseases, endotracheal intubation, and other situations. They help doctors comprehensively understand the patient's oral condition, promptly identify and treat problems. However, many existing retractors lack a self-locking function, leading to inconvenience and poor stability. Furthermore, disposable dental retractors are difficult to install, often resulting in detachment and misalignment, thus failing to perform their intended function. Therefore, this case study was developed to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a self-locking dental retractor to solve the problem mentioned in the background art that the existing self-locking dental retractor does not have positioning installation and self-locking functions.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a self-locking oral examination retractor, comprising a sliding plate, a handheld plate, and a damper. A lower support plate is connected to the upper part of the handheld plate, a sliding plate is installed on one side of the handheld plate, and an anti-slip pad is installed on the outer wall of one side of the sliding plate. An upper support plate is connected to the top of the sliding plate, and an observation port is provided on the upper part of one side of the sliding plate. Disposable dental sleeves are installed on the inner sides of both the lower and upper support plates. A gear is installed on the inner wall of one side of the lower support plate, and a rack is meshed on the inner wall of the sliding plate on the side of the gear.

[0005] Preferably, the outer walls on both sides of the lower support plate and the upper support plate are provided with positioning grooves, and the inner walls of the disposable dental brace are connected with elastic rubber blocks that cooperate with the positioning grooves.

[0006] Preferably, the inner wall of the disposable dental brace is connected with a rough patch at the middle position, and the inner walls of the lower support plate and the upper support plate are connected with a barbed patch that cooperates with the rough patch.

[0007] Preferably, a pressure plate is movably connected to the inner wall of one side of the lower support plate via a rotating shaft, and a locking block is connected to the top of the pressure plate, wherein the locking block and the gear form a meshing structure.

[0008] Preferably, the outer walls at both ends of one side of the handheld plate are provided with limiting grooves, and the two ends of the inner wall of the sliding plate are movably connected to the limiting grooves through limiting wheels.

[0009] Preferably, a damper is installed on the upper part of the other side of the handheld plate, and a return spring is installed on the outer wall of one end of the damper.

[0010] Preferably, one end of the damper is movably connected to a pulley via a bearing, and the inner wall of the pressure plate is provided with a groove that cooperates with the pulley.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) This utility model provides a hand-held plate, a pulley and a return spring. Using the hand-held plate, one finger presses the pressure plate inward, the damper and the return spring are squeezed and deformed, and at the same time the locking block moves away from the gear. Then, the thumb presses on the anti-slip pad and pushes the sliding plate upward. Through the meshing of the rack and gear, the sliding plate moves upward to adjust the height of the upper support plate. After the height is appropriate, the pressure plate is released, the pulley and the return spring return to their original positions, so that the locking block self-locks the gear, thus solving the problem of not having a self-locking function.

[0013] (2) This utility model provides a disposable dental brace, an elastic rubber block and a textured adhesive. The disposable dental brace is placed in the lower support plate and the upper support plate, and the elastic rubber block is pressed into the positioning groove for positioning. The elastic rubber block is made of elastic rubber, so it can be deformed and inserted into the positioning groove when pressed down, and the elastic rubber block is not easy to fall off. The textured adhesive and the burr adhesive are used to stick together, which facilitates the positioning and installation of the disposable dental brace and solves the problem of inconvenient positioning and installation. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the lower support plate of this utility model;

[0015] Figure 2 This is a side view of the handheld device of this utility model.

[0016] Figure 3 This is a schematic diagram of the damper structure of this utility model;

[0017] Figure 4 This is a cross-sectional view of the lower support plate and the upper support plate of this utility model.

[0018] In the diagram: 1. Lower support plate; 2. Upper support plate; 3. Observation port; 4. Gear; 5. Sliding plate; 6. Anti-slip pad; 7. Limiting groove; 8. Limiting wheel; 9. Handheld plate; 10. Locking block; 11. Pressure plate; 12. Slide groove; 13. Pulley; 14. Return spring; 15. Damper; 16. Rack; 17. Positioning groove; 18. Disposable dental brace; 19. Elastic rubber block; 20. Piercing tape; 21. Wool tape. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: Please refer to Figures 1-4 A self-locking oral examination retractor includes a sliding plate 5, a hand plate 9, and a damper 15. A lower support plate 1 is connected to the upper part of the hand plate 9. The sliding plate 5 is installed on one side of the hand plate 9, and an anti-slip pad 6 is installed on the outer wall of one side of the sliding plate 5. An upper support plate 2 is connected to the top of the sliding plate 5. An observation port 3 is provided on the upper side of one side of the sliding plate 5. Disposable dental sleeves 18 are installed on the inner sides of both the lower support plate 1 and the upper support plate 2. A gear 4 is installed on the inner wall of one side of the lower support plate 1, and a rack 16 is meshed on the inner wall of the sliding plate 5 on one side of the gear 4.

[0021] The outer walls of both sides of the lower support plate 1 and the upper support plate 2 are provided with positioning grooves 17, and the inner walls of the disposable dental brace 18 are connected with elastic rubber blocks 19 that cooperate with the positioning grooves 17.

[0022] The inner wall of the disposable dental brace 18 is connected with a bristle sticker 21 in the middle position, and the inner walls of the lower support plate 1 and the upper support plate 2 are connected with a barbed sticker 20 that cooperates with the bristle sticker 21.

[0023] Specifically, such as Figure 1 and Figure 4 As shown, when using this structure, the disposable dental brace 18 is placed into the lower support plate 1 and the upper support plate 2, and positioned by pressing the elastic rubber block 19 into the positioning groove 17. The elastic rubber block 19 is made of elastic rubber, so pressing the elastic rubber block 19 downwards can deform it into the positioning groove 17, and the elastic rubber block 19 is not easy to fall off. It is glued by the rough adhesive 21 and the barbed adhesive 20, which facilitates the positioning and installation of the disposable dental brace 18 and makes it not easy to fall off.

[0024] Example 2: A pressure plate 11 is movably connected to the inner wall of one side of the lower support plate 1 via a rotating shaft, and a locking block 10 is connected to the top of the pressure plate 11. The locking block 10 and the gear 4 form a meshing structure.

[0025] Limiting grooves 7 are provided on both ends of the outer wall of one side of the handheld plate 9, and both ends of the inner wall of the sliding plate 5 are movably connected to the limiting grooves 7 through limiting wheels 8;

[0026] A damper 15 is installed on the upper side of the other side of the handheld plate 9, and a return spring 14 is installed on the outer wall of one end of the damper 15.

[0027] One end of the damper 15 is movably connected to the pulley 13 via a bearing, and the inner wall of the pressure plate 11 is provided with a groove 12 that mates with the pulley 13.

[0028] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, when using this structure, by holding the hand plate 9, one finger presses the pressure plate 11 inward, the damper 15 and the return spring 14 are squeezed and deformed, and at the same time the locking block 10 moves away from the gear 4. Then, the thumb presses on the anti-slip pad 6 and pushes the sliding plate 5 upward. Through the rack 16 meshing with the gear 4, the sliding plate 5 moves upward to adjust the height of the upper support plate 2. After the height is appropriate, the pressure plate 11 is released, and the pulley 13 and the return spring 14 reset, so that the locking block 10 self-locks the gear 4.

[0029] Working principle: When using this device, first insert the lower support plate 1 and the upper support plate 2 into the mouth, so that the upper and lower teeth are respectively inserted into the upper support plate 2 and the lower support plate 1. Move the upper support plate 2 upward to make the upper teeth move upward and open the oral cavity. The oral cavity can be observed through the observation port 3.

[0030] Implementation steps for the first innovation point:

[0031] The disposable dental brace 18 is placed into the lower support plate 1 and the upper support plate 2, and positioned by pressing the elastic rubber block 19 into the positioning groove 17. The elastic rubber block 19 is made of elastic rubber, so it can deform downward and enter the positioning groove 17 when pressed, and the elastic rubber block 19 is not easy to fall off. The disposable dental brace 18 is installed by sticking the rough adhesive 21 and the barbed adhesive 20 together.

[0032] Implementation steps for the second innovation point:

[0033] Step 1: Hold the hand plate 9 and press the pressure plate 11 inward with one finger. The damper 15 and the return spring 14 are squeezed and deformed. At the same time, the locking block 10 moves away from the gear 4. Then, press the thumb on the anti-slip pad 6 and push the sliding plate 5 upward. The sliding plate 5 moves upward to adjust the height of the upper support plate 2 through the meshing of the rack 16 with the gear 4.

[0034] Step 2: After the height is appropriate, release the pressure plate 11, and the pulley 13 and return spring 14 will reset so that the locking block 10 self-locks the gear 4.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-locking oral examination retractor, comprising a sliding plate (5), a handheld plate (9), and a damper (15), characterized in that: A lower support plate (1) is connected to the upper part of the handheld plate (9). A sliding plate (5) is installed on one side of the handheld plate (9), and an anti-slip pad (6) is installed on the outer wall of one side of the sliding plate (5). An upper support plate (2) is connected to the top of the sliding plate (5). An observation port (3) is provided on the upper side of one side of the sliding plate (5). Disposable dental sleeves (18) are installed on the inner sides of both the lower support plate (1) and the upper support plate (2). A gear (4) is installed on the inner wall of one side of the lower support plate (1), and a rack (16) is meshed with the inner wall of the sliding plate (5) on one side of the gear (4).

2. The self-locking oral examination retractor according to claim 1, characterized in that: The outer walls of both sides of the lower support plate (1) and the upper support plate (2) are provided with positioning grooves (17), and the inner walls of the disposable dental brace (18) are connected with elastic rubber blocks (19) that cooperate with the positioning grooves (17).

3. The self-locking oral examination retractor according to claim 1, characterized in that: The inner wall of the disposable dental brace (18) is connected with a burr patch (21) at the middle position, and the inner walls of the lower support plate (1) and the upper support plate (2) are connected with a barbed patch (20) that cooperates with the burr patch (21).

4. The self-locking oral examination retractor according to claim 1, characterized in that: The inner wall of one side of the lower support plate (1) is movably connected to a pressure plate (11) via a rotating shaft, and a locking block (10) is connected to the top of the pressure plate (11). The locking block (10) and the gear (4) form a meshing structure.

5. A self-locking oral examination retractor according to claim 1, characterized in that: The outer walls at both ends of one side of the handheld plate (9) are provided with limiting grooves (7), and the two ends of the inner wall of the sliding plate (5) are movably connected to the limiting grooves (7) through limiting wheels (8).

6. A self-locking oral examination retractor according to claim 1, characterized in that: A damper (15) is installed on the upper side of the other side of the handheld plate (9), and a return spring (14) is installed on the outer wall of one end of the damper (15).

7. A self-locking oral examination retractor according to claim 4, characterized in that: One end of the damper (15) is movably connected to a pulley (13) via a bearing, and the inner wall of the pressure plate (11) is provided with a groove (12) that cooperates with the pulley (13).

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