A detachable tray opener

Abstract

The utility model discloses a detachable tray opening device belongs to medical apparatus and contains two parts of opening forceps and detachable dental tray. Opening forceps are composed of Chinese character type connecting plate, articulated L type forceps head and driving device; driving device is equipped with driving box, meshing bevel gear, screw cylinder, limiting screw rod and driving plate in it, and rotating driving plate can drive screw rod to move down and open forceps head, and opening amplitude can be controlled accurately. Dental tray is divided into multiple specifications of front and back dental trays, and T type slot, spring, L type plate and arc clamping block are arranged in the dental tray, and U type clamping seat T type clamping groove and forceps head lower end ball connecting rod are connected quickly, and ball can adjust the multiple angles of tray, and L type plate can be pressed to detach dental tray. The device is labor-saving, angle-controllable, and dental tray can be detached, replaced, cleaned and disinfected alone, and the risk of cross infection in oral diagnosis and treatment is reduced greatly, and the device is suitable for different patients with different dental types.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a detachable tray opener. Background Technology

[0002] Mouth openers are a common auxiliary tool in the medical field, mainly used to open the patient's mouth to facilitate oral examinations, treatments or surgical procedures by medical staff. Although existing mouth openers meet the needs of medical work to a certain extent, there are still many problems and shortcomings. For example, existing mouth openers need to be disinfected frequently during use, which is not only troublesome to operate, but also poses a risk of cross-infection if disinfection is not sufficient.

[0003] Therefore, it is necessary to propose a detachable pallet opener to solve the above problems. Summary of the Invention

[0004] Technical problem to be solved: The purpose of this utility model is to provide a detachable pallet opener to solve the problem mentioned in the background art that the existing openers need to be disinfected frequently during use, which is not only troublesome to operate, but also may cause cross-infection if the disinfection is not sufficient.

[0005] Technical Solution: To achieve the above objectives, this utility model is implemented through the following technical solution: A detachable pallet opener, including opening pliers and a toothed pallet 18, wherein the opening pliers include a connecting plate 1, L-shaped plier heads 3 hinged to both ends of the bottom of the connecting plate 1, and a driving device capable of driving the L-shaped plier heads 3 to move away from each other along their respective hinge points; the toothed pallet 18 includes an upper toothed plate and a lower toothed plate, and U-shaped retainers 19 are clamped on adjacent surfaces of the toothed plates; a through groove is horizontally opened in the middle of the toothed plate, and through holes communicating with the corresponding through grooves are opened at the center of adjacent surfaces, the through grooves and through holes together forming a T-shaped groove, and L-shaped plates 6 are symmetrically arranged in each T-shaped groove, with springs 22 arranged between the L-shaped plates 6; arc-shaped notches are opened on the side of both ends of the through groove facing the U-shaped retainers 19, L The upper end of the template 6 extends into the corresponding arc-shaped notch and is fixedly installed with an arc-shaped plate 23. The lower end of the L-shaped plate 6 is fixedly installed with a locking block 20. The upper part of the U-shaped card seat 19 is provided with a T-shaped slot 21 for the locking block 20 to be inserted. The groove at the lower part of the U-shaped card seat 19 is fitted with a ball bearing 5. The exposed end of each ball bearing 5 is fixedly installed with a connecting rod 4. The other end of the connecting rod 4 is fixedly installed at the lower end of the L-shaped pliers 3, and the connecting rod 4 is parallel to the corresponding L-shaped pliers 3.

[0006] Preferably, the connecting plate 1 is U-shaped, and a mounting groove 15 is provided in the middle of both ends of the connecting plate 1. A threaded hole is provided in the middle of the mounting groove 15, penetrating the front and rear side walls of the mounting groove 15. A screw 17 is provided in the threaded hole. A connecting ring 16 is threaded on the screw 17 in the mounting groove 15. A connecting rod is fixedly installed at the bottom of the connecting ring 16. The lower end of the connecting rod is fixedly connected to the top of the L-shaped pliers head 3.

[0007] Preferably, the driving device includes a driving box 2 fixedly installed on the top of the connecting plate 1, and a driving structure disposed in the driving box 2. A through hole penetrating the connecting plate 1 is provided at the bottom center of the driving box 2.

[0008] Preferably, the drive structure includes a screw barrel 8 and a bevel gear II 12 rotatably mounted in the drive housing 2, a bevel gear I 11 fixedly fitted outside the screw barrel 8, a screw 9 threadedly fitted inside the screw barrel 8, and a drive assembly for driving the bevel gear II 12 to rotate. The bevel gear I 11 meshes with the bevel gear II 12 for transmission. The screw 9 is concentrically arranged with the through hole of the connecting plate 1, and the lower end of the screw 9 extends into the through hole, while the upper end has a limit groove opened vertically. A limit rod 10 is slidably fitted vertically in the limit groove, and the upper end of the limit rod 10 is fixedly connected to the drive housing 2.

[0009] Preferably, the drive assembly includes a drive shaft 13 rotatably mounted in the drive housing 2, a bevel gear II 12 fixedly mounted on the drive shaft 13, one end of the drive shaft 13 passing through the drive housing 2 and fixedly mounted on a drive plate 14, a fixing ring 7 fixedly mounted on the inner bottom surface of the drive housing 2, and a screw barrel 8 rotatably mounted in the fixing ring 7 via a bearing.

[0010] Beneficial effects: Compared with the prior art, this utility model provides a detachable tray mouth opener. This detachable tray mouth opener has a unique structure and is easy to use. It achieves the opening and fixation of the oral cavity through the finely designed mouth opener and dental tray 18 structure. First, the medical staff selects the appropriate dental tray 18 and fixes the dental tray on the ball bearing 5 with the help of the U-shaped card holder 19. Then, the drive plate 14 is rotated to drive the bevel gear II 12 to rotate. The bevel gear II 12 meshes with the bevel gear I 11, which in turn drives the screw barrel 8 to rotate. The screw barrel 8 and the screw rod 9 are connected by threads. The rotation of the screw barrel 8 causes the screw rod 9 to move in the vertical direction, pushing the L-shaped forceps head 3 to open the patient's oral cavity.

[0011] This mouth opener not only allows for precise control of the opening angle of the mouth openers, but also simplifies the operation of opening the mouth and reduces the physical exertion of medical staff. In addition, the replaceability of the dental tray 18 makes it easy to clean and disinfect after each use, effectively reducing the risk of cross-infection. Attached Figure Description

[0012] Figure 1This is a three-dimensional front view schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a front view schematic diagram of the structure of this utility model;

[0014] Figure 3 This is a cross-sectional schematic diagram of the structure of this utility model;

[0015] Figure 4 This is an internal schematic diagram of the drive box structure of this utility model;

[0016] Figure 5 This is a three-dimensional schematic diagram of the U-shaped card holder structure of this utility model;

[0017] Figure 6 This is a cross-sectional schematic diagram of the U-shaped card holder structure of this utility model;

[0018] Figure 7 This utility model Figure 3 Enlarged schematic diagram of the structure in area A;

[0019] Figure 8 This utility model Figure 4 Enlarged schematic diagram of the structure in region B;

[0020] Figure 9 This is a schematic diagram of the installation of the limiting rod in Embodiment 2 of this utility model;

[0021] Figure 10 This is a front view schematic diagram of three types of anterior toothed discs of this utility model;

[0022] Figure 11 This is a front view schematic diagram of three types of posterior toothed discs according to this utility model.

[0023] In the diagram: 1. Connecting plate; 2. Drive box; 3. L-shaped clamp head; 4. Connecting rod; 5. Ball bearing; 6. L-shaped plate; 7. Retaining ring; 8. Screw; 9. Screw; 10. Limiting rod; 11. Bevel gear I; 12. Bevel gear II; 13. Drive shaft; 14. Drive plate; 15. Mounting groove; 16. Connecting ring; 17. Screw; 18. Gear tray; 19. U-shaped bracket; 20. Clamping block; 21. T-shaped slot; 22. Spring; 23. Arc plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Example 1: This Example 1 provides a detachable pallet opener, which is a direct improvement on existing openers and has a unique structure. Please refer to [link / reference]. Figure 1-8As shown, the device includes a mouth-opening pliers and a jaw tray 18. The mouth-opening pliers include a connecting plate 1, L-shaped plier heads 3 hinged to both ends of the bottom of the connecting plate 1, and a driving device that drives the L-shaped plier heads 3 to move away from each other along their respective hinge points. There are various ways to hinge the connecting plate 1 and the L-shaped plier heads 3. The connecting plate 1 is U-shaped. The middle of both ends of the connecting plate 1 has a mounting groove 15. The middle of the mounting groove 15 has a threaded hole that passes through the front and rear side walls of the mounting groove 15. A screw 17 is installed in the threaded hole. A connecting ring 16 is threaded onto the screw 17 in the mounting groove 15. A connecting rod is fixedly installed at the bottom of the connecting ring 16. The lower end of the connecting rod is fixedly connected to the top of the L-shaped plier head 3. The connecting plate 1 and the L-shaped plier head 3 are assembled by the screw 17, which facilitates the disassembly and cleaning of the mouth-opening pliers.

[0026] The driving device includes a driving box 2 fixedly mounted on the top of the connecting plate 1, and a driving structure disposed within the driving box 2. A through hole penetrating the connecting plate 1 is vertically opened at the bottom center of the driving box 2. The driving structure includes a screw barrel 8 and a bevel gear II 12 rotatably mounted within the driving box 2, a bevel gear I 11 fixedly fitted outside the screw barrel 8, a screw rod 9 threadedly fitted within the screw barrel 8, and a driving assembly for driving the bevel gear II 12 to rotate. The bevel gear I 11 meshes with the bevel gear II 12. The screw rod 9 is concentrically positioned with the through hole of the connecting plate 1, with its lower end extending into the through hole and its upper end having a vertically opening limit groove. A limit rod 10 is vertically slidably mounted within the limit groove. The upper end of the limit rod 10 is fixedly connected to the driving box 2. The limit rod 10 is a hexagonal prism, and the limit groove is adapted to the limit rod 10, thus allowing the screw rod 9 to move only vertically up and down. The driving assembly includes a driving shaft 13 rotatably mounted within the driving box 2, and a bevel gear II 12. The fixed assembly is mounted on the drive shaft 13. One end of the drive shaft 13 passes through the drive housing 2 and is fixedly mounted on the drive plate 14. A fixing ring 7 is fixedly mounted on the inner bottom surface of the drive housing 2. The screw cylinder 8 is rotatably mounted in the fixing ring 7 through a bearing.

[0027] The dental tray 18 includes a front dental tray and a rear dental tray, both available in small, medium, and large sizes. Each tray includes an upper and lower dental tray. Silicone pads are located on the sides of the dental trays that are furthest from each other. U-shaped retainers 19 are fitted onto adjacent surfaces of the dental trays. A horizontal through-slot is formed in the center of each dental tray, and a through-hole communicating with the corresponding through-slot is formed at the center of adjacent surfaces. The through-slot and through-hole together form a T-slot. An L-shaped plate 6 is symmetrically arranged within each T-slot, and a spring 22 is placed between the L-shaped plates 6. Arc-shaped notches are formed on the sides of the through-slots facing the U-shaped retainers 19. The upper end of the L-shaped plate 6 extends into the corresponding arc-shaped notch and is fixedly installed with an arc-shaped plate 23. A retaining block 20 is fixedly installed at the lower end of the L-shaped plate 6. A T-shaped slot 21 for inserting the retaining block 20 is formed in the upper part of the U-shaped retainer 19. A ball bearing 5 is embedded in the groove at the lower part of the U-shaped retainer 19. One end of each is fixedly equipped with a connecting rod 4, and the other end of the connecting rod 4 is fixedly installed at the lower end of the L-shaped pliers 3, and the connecting rod 4 is parallel to the corresponding L-shaped pliers 3.

[0028] Working principle: When medical staff use this mouth opener to open the patient's mouth, they first select a suitable dental tray 18, then align the locking block 20 with the T-shaped slot 21 and press down to lock the locking block 20 into the T-shaped slot 21; then, they insert the mouth opener into the patient's mouth so that the patient's upper and lower teeth contact the dental tray respectively. At this time, the drive plate 14 is rotated, and the drive plate 14 drives the bevel gear II 12 to rotate through the drive shaft 13. After the bevel gear II 12 rotates, it interacts with the bevel gear I 11. The meshing transmission drives the screw barrel 8 to rotate. Since the middle of the screw 9 has a vertically opening limit groove, the limit rod 10 is slidably fitted in the limit groove, and the upper end of the limit rod 10 is fixedly connected to the drive box 2. In addition, the screw 9 can only slide vertically up and down. Therefore, when the screw barrel 8 rotates, the screw barrel 8 and the screw 9 rotate relative to each other, thereby driving the screw 9 to move downward through the threaded connection and push the L-shaped pliers 3, so that the tail ends of the L-shaped pliers 3 move away from each other, thereby opening the patient's mouth. Moreover, since the ball bearing 5 is embedded in the U-shaped card seat 19, the angle between the opening forceps and the dental tray 18 in the horizontal and vertical directions can be adjusted. After the patient's oral examination is completed, the L-shaped plate 6 is pressed to bring them closer together. At this time, the card block 20 can be disengaged from the T-shaped card slot 21, thereby facilitating the replacement of the dental tray 18.

[0029] Example 2: The difference between Example 2 and Example 1 is as follows: Figure 9As shown, a limiting groove is vertically formed inside the screw 9. The upper end of the limiting groove is sealed and the lower end is open. A limiting block is slidably fitted inside the limiting groove. The limiting block is a hexagonal block. The limiting groove and the limiting block are adapted to each other. A limiting rod 10 is fixedly installed on the top of the limiting block. A through hole is formed on the inner top surface of the limiting groove. The upper end of the limiting rod 10 extends out of the limiting groove through the through hole and is fixedly connected to the drive box 2. In this way, the screw 9 is prevented from separating from the screw barrel 8 when it moves downward.

[0030] Although embodiments of the present invention have been shown and described, those skilled in the art will be able to make various changes, modifications, substitutions and alterations 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 detachable pallet opener, comprising opener pliers, including a toothed pallet (18), characterized in that: The open-mouth pliers include a connecting plate (1), L-shaped plier heads (3) hinged to the bottom ends of the connecting plate (1), and a driving device that can drive the two L-shaped plier heads (3) away from each other along their respective hinge points; the driving device includes a driving box (2) and a driving structure located inside the driving box (2); the tooth tray (18) includes an upper tooth tray and a lower tooth tray, and a U-shaped bracket (19) is fitted on the adjacent surfaces of the two tooth trays; the middle of the two tooth trays is provided with a horizontal through groove, and the center of the adjacent surfaces of the two tooth trays is provided with a through hole communicating with the corresponding through groove, the through groove and the through hole together form a T-shaped groove, and two L-shaped plates (6) are symmetrically arranged in each T-shaped groove, and a spring (22) is provided between the two L-shaped plates (6); the two ends of the through groove are provided with arc-shaped notches on the side facing the U-shaped bracket (19), and the upper end of the L-shaped plate (6) extends into the corresponding arc-shaped notch and is fixedly installed with an arc-shaped plate (23), L A locking block (20) is fixedly installed at the lower end of the template (6). A T-shaped slot (21) for the locking block (20) to be inserted is opened at the upper part of the U-shaped card seat (19). A ball (5) is embedded in the groove at the lower part of the U-shaped card seat (19). A connecting rod (4) is fixedly installed at the exposed end of each of the two balls (5). The other ends of the two connecting rods (4) are respectively fixedly installed at the lower ends of the two L-shaped pliers (3), and the two connecting rods (4) are parallel to the corresponding L-shaped pliers (3).

2. A detachable pallet opener according to claim 1, characterized in that: The connecting plate (1) is U-shaped. The middle of both ends of the connecting plate (1) is provided with mounting grooves (15). The middle of the mounting groove (15) is provided with threaded holes that penetrate the front and rear side walls of the mounting groove (15). Screws (17) are provided in the threaded holes. A connecting ring (16) is threaded on the screws (17) in the mounting groove (15). A connecting rod is fixedly installed at the bottom of the connecting ring (16). The lower end of the connecting rod is fixedly connected to the top of the L-shaped pliers (3).

3. A detachable pallet opener according to claim 1, characterized in that: The drive box (2) is fixedly installed on the top of the connecting plate (1), and a through hole is vertically opened at the bottom center of the drive box (2) to pass through the connecting plate (1).

4. A detachable pallet opener according to claim 1, characterized in that: The drive structure includes a screw barrel (8) and a bevel gear II (12) rotatably mounted in the drive box (2), a bevel gear I (11) fixedly mounted on the outside of the screw barrel (8), a screw rod (9) threadedly mounted in the screw barrel (8), and a drive assembly for driving the bevel gear II (12) to rotate. The bevel gear I (11) meshes with the bevel gear II (12) for transmission. The screw rod (9) is concentrically set with the through hole of the connecting plate (1), and the lower end of the screw rod (9) extends into the through hole, and the upper end is provided with a limit groove along the vertical direction. A limit rod (10) is slidably mounted in the limit groove along the vertical direction. The upper end of the limit rod (10) is fixedly connected to the drive box (2).

5. A detachable pallet opener according to claim 4, characterized in that: The drive assembly includes a drive shaft (13) rotatably mounted in a drive housing (2), a bevel gear II (12) fixedly mounted on the drive shaft (13), one end of the drive shaft (13) passing through the drive housing (2) and fixedly mounted with a drive plate (14), a fixing ring (7) fixedly mounted on the inner bottom surface of the drive housing (2), and a screw barrel (8) rotatably mounted in the fixing ring (7) through a bearing.

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