Oral cavity opening device

Abstract

The utility model discloses an oral cavity opening device which comprises a concentric-square-shaped supporting frame, two expansion push plates are movably connected into the concentric-square-shaped supporting frame, two push-pull rods are fixedly connected to the tops of the expansion push plates, and the ends, movably penetrating through the concentric-square-shaped supporting frame, of the push-pull rods are fixedly connected with zigzag push-pull plates. The tooth expanding device has the advantages that the power mechanism drives the two zigzag push-pull plates to displace, the zigzag push-pull plates can pull the expanding push plates to displace through the push-pull rods, and therefore the two expanding push plates can be driven to be opened, the outer protection sleeves connected to the expanding push plates in a sleeving mode can enable teeth to be meshed in the arc-shaped notches, and the tooth expanding effect is improved. Therefore, the expansion push plates can be limited with the teeth in the oral cavity, the two expansion push plates are prevented from sliding off due to opening, the structure is reasonable, and the device can be conveniently positioned and put into the oral cavity for opening.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an oral cavity opening device. Background Art

[0002] Stomatology is one of the medical disciplines. It is mainly classified into oral diseases, teeth, and dental lesions. These three categories can be further divided into oral beauty, dental implants, orthodontics, oral ulcers, oral inflammation, etc. In the treatment of oral diseases, a detailed and effective treatment plan needs to be formulated. The doctor's meticulous and exquisite treatment and the patient's active cooperation are the keys to successful treatment.

[0003] Therefore, a support device is needed to open the mouth during oral treatment. However, the existing opening devices have certain disadvantages. The existing opening devices cannot be positioned during the process of opening the mouth, which causes the device to easily deviate or fall off during the opening process, thereby affecting the effect of oral opening. Therefore, an oral opening device is urgently needed to solve the above problems. Utility Model Content

[0004] In order to solve the above problems, the present invention provides an oral opening device, which is achieved through the following technical solutions.

[0005] An oral opening device includes a circular support frame, wherein the circular support frame is internally movably connected to two expansion push plates, and the top of the expansion push plates is fixedly connected to two push-pull rods, wherein the push-pull rods movably pass through the circular support frame and are fixedly connected to a zigzag push-pull plate at one end, an outer protective sleeve is sleeved on the expansion push plate, and an arc-shaped notch is provided on the outer protective sleeve, and further includes:

[0006] A power mechanism is used to drive the displacement of two zigzag push-pull plates.

[0007] Furthermore, one side of the circular support frame is fixedly connected to a first sliding rod, and one end of the two zigzag push-pull plates is movably connected to the first sliding rod.

[0008] Furthermore, the power mechanism includes a servo motor, which is fixedly connected to the top of the circular support frame through an L-shaped support frame. The output shaft of the servo motor passes through one end of the L-shaped support frame and is fixedly connected to a worm. The bottom of the L-shaped support frame is rotatably connected to a bidirectional threaded rod through a set hanger, and a worm gear is fixedly connected to the bidirectional threaded rod, and the worm gear is meshingly connected to the worm gear.

[0009] Furthermore, the thread directions of the two ends of the bidirectional threaded rod are opposite, the other ends of the two zigzag push-pull plates are movably connected to the two ends of the bidirectional threaded rod respectively, and the zigzag push-pull plates are threadedly matched with the bidirectional threaded rod.

[0010] Furthermore, the circular support frame and the zigzag push-pull plate are located on the same plane.

[0011] Furthermore, a circular protective pad is fixedly connected to the bottom of the circular support frame.

[0012] Furthermore, the circular protective pad and the outer protective sleeve are both made of silicone.

[0013] The beneficial effect of the present invention is that, during the operation of the device, the two expansion push plates movably connected inside the circular support frame are first inserted into the oral cavity, and then the two zigzag push-pull plates are driven to move by a power mechanism, and the zigzag push-pull plates can pull the expansion push plates to move through the push-pull rods, thereby driving the two expansion push plates to open, wherein the outer protective sleeves sleeved on the expansion push plates can enable the teeth to bite in the arc-shaped grooves, so that the expansion push plates can be limited to the oral teeth, avoiding the two expansion push plates from sliding when opened, and the structure is reasonable, which facilitates the positioning of the device into the oral cavity for expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the specific implementation methods. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 : A schematic structural diagram of an oral opening device according to the present invention;

[0016] Figure 2 : Bottom view of the utility model;

[0017] Figure 3 : A front view of the utility model;

[0018] Figure 4 : Schematic diagram of the connection between the expansion push plate and the outer protective sleeve of the utility model.

[0019] The reference numerals are as follows:

[0020] 1. Reciprocating support frame; 11. First slide bar; 12. Reciprocating protective pad;

[0021] 2. Expansion push plate; 21. Push-pull rod; 22. Outer protective sleeve;

[0022] 3. Zigzag sliding plate;

[0023] 4. Servo motor; 41. L-shaped support frame; 42. Worm; 43. Bidirectional threaded rod; 431. Worm gear. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-4 As shown, the utility model has the following specific embodiments.

[0026] Example:

[0027] An oral opening device includes a circular support frame 1, the circular support frame 1 is internally movably connected to two expansion push plates 2, the top of the expansion push plates 2 are fixedly connected to two push-pull rods 21, the push-pull rods 21 movably pass through the circular support frame 1 and are fixedly connected to a zigzag push-pull plate 3 at one end, an outer protective sleeve 22 is sleeved on the expansion push plate 2, and the outer protective sleeve 22 has an arc-shaped notch, and further includes:

[0028] The power mechanism is used to drive the two zigzag push-pull plates 3 to move.

[0029] By adopting the above technical solution, when using the device, first insert the two expansion push plates 2 movably connected inside the circular support frame 1 into the oral cavity, and then drive the two zigzag push-pull plates 3 to move through the power mechanism. The zigzag push-pull plates 3 can pull the expansion push plates 2 to move through the push-pull rods 21, thereby driving the two expansion push plates 2 to open. Among them, the outer protective sleeve 22 sleeved on the expansion push plate 2 can make the teeth bite in the arc-shaped groove, so that the expansion push plate 2 can be limited to the oral teeth to prevent the two expansion push plates 2 from sliding when opened. The structure is reasonable, which is convenient for positioning the device into the oral cavity for expansion.

[0030] Specifically, one side of the loop-shaped support frame 1 is fixedly connected to a first slide bar 11 , and one end of the two zigzag push-pull plates 3 is movably connected to the first slide bar 11 .

[0031] The power mechanism includes a servo motor 4, which is fixedly connected to the top of the circular support frame 1 through an L-shaped support frame 41. The output shaft of the servo motor 4 passes through the L-shaped support frame 41 and is fixedly connected to a worm 42 at one end. The bottom of the L-shaped support frame 41 is rotatably connected to a bidirectional threaded rod 43 through a hanger. A worm gear 431 is fixedly connected to the bidirectional threaded rod 43, and the worm gear 431 is meshed with the worm 42.

[0032] The thread directions of the two ends of the bidirectional threaded rod 43 are opposite, and the other ends of the two zigzag push-pull plates 3 are movably connected to the two ends of the bidirectional threaded rod 43 respectively, and the zigzag push-pull plates 3 are threadedly matched with the bidirectional threaded rod 43.

[0033] By adopting the above technical solution, the two zigzag push-pull plates 3 can be driven to displace simultaneously, that is, the servo motor 4 can drive the worm 42 to rotate, and the worm 42 can drive the meshing worm gear 431 to rotate. Since the worm gear 431 is fixed on the bidirectional threaded rod 43, the bidirectional threaded rod 43 is rotated under the L-shaped support frame 41 through the hanger, and since one end of the two zigzag push-pull plates 3 is respectively threadedly connected to the two ends of the bidirectional threaded rod 43, at the same time, the other ends of the two zigzag push-pull plates 3 are movably connected to the first slide bar 11, so that the two zigzag push-pull plates 3 are displaced in opposite directions, and the zigzag push-pull plates 3 pull the connected expansion push plate 2 to displace through the push-pull rod 21, and then drive the two expansion push plates 2 to open, and the opened expansion push plates 2 can open the mouth.

[0034] Specifically, the return-shaped support frame 1 and the zigzag push-pull plate 3 are located on the same plane, so that the return-shaped support frame 1 and the zigzag push-pull plate 3 can be horizontally displaced;

[0035] Specifically, a circular protective pad 12 is fixedly connected to the bottom of the circular support frame 1. The circular protective pad 12 can provide a protective effect when the circular support frame 1 is attached to the face.

[0036] The circular protective pad 12 and the outer protective sleeve 22 are both made of silicone, which can make the circular protective pad 12 and the outer protective sleeve 22 flexible and can provide a protective effect when the device is used.

[0037] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An oral opening device, comprising a circular support frame (1), characterized in that: The inner part of the circular support frame (1) is movably connected to two expansion push plates (2), the top of the expansion push plate (2) is fixedly connected to two push-pull rods (21), one end of the push-pull rod (21) movably passes through the circular support frame (1) and is fixedly connected to a zigzag push-pull plate (3), the expansion push plate (2) is sleeved with an outer protective sleeve (22), and the outer protective sleeve (22) is provided with an arc-shaped notch, and further comprises: A power mechanism is provided, wherein the power mechanism is used for driving the displacement of two zigzag push-pull plates (3).

2. The oral opening device according to claim 1, characterized in that: One side of the loop-shaped support frame (1) is fixedly connected to a first slide bar (11), and one end of each of the two zigzag push-pull plates (3) is movably connected to the first slide bar (11).

3. The oral opening device according to claim 1, characterized in that: The power mechanism comprises a servo motor (4), the servo motor (4) being fixedly connected to the top of the circular support frame (1) via an L-shaped support frame (41), an output shaft of the servo motor (4) passing through one end of the L-shaped support frame (41) being fixedly connected to a worm (42), a bottom of the L-shaped support frame (41) being rotatably connected to a bidirectional threaded rod (43) via a provided hanger, a worm wheel (431) being fixedly connected to the bidirectional threaded rod (43), and the worm wheel (431) being meshedly connected to the worm wheel (42).

4. The oral opening device according to claim 3, characterized in that: The thread directions of the two ends of the bidirectional threaded rod (43) are opposite, and the other ends of the two zigzag push-pull plates (3) are movably connected to the two ends of the bidirectional threaded rod (43), and the zigzag push-pull plates (3) are threadedly matched with the bidirectional threaded rod (43).

5. The oral opening device according to claim 1, characterized in that: The circular support frame (1) and the zigzag push-pull plate (3) are located on the same plane.

6. The oral cavity opening device according to claim 1, characterized in that: A circular protective pad (12) is fixedly connected to the bottom of the circular support frame (1).

7. The oral opening device according to claim 6, characterized in that: The retractable protective pad (12) and the outer protective sleeve (22) are both made of silica gel.

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