CN217772302U - Oral expansion device for stomatology - Google Patents

Abstract

The utility model discloses an oral cavity expansion device for stomatology, which comprises a handle, a first expansion frame and a second expansion frame. The surface of the handle is connected with an adjustment gear, and the outer side of the adjustment gear is connected with an operating handle. A first expansion frame is fixed on one side of the top of the handle, a second expansion frame is provided on a side of the handle close to the adjustment gear, and a transmission rack is provided on the outside of one end of the second expansion frame. The mouth expansion device for stomatology uses the operating handle to drive the adjustment gear to mesh with the transmission rack at one end of the second expansion frame, so that the traction blocks on the first expansion frame and the second expansion frame open the mouth to both sides, and the operation When the handle is loosened, tighten the spring to pull the limit gear close to the limit rod, so that the limit gear can limit the reverse rotation of the adjustment gear. The protrusion and the connecting rod on the handle can prevent the device from falling when operating the oral expansion device.

Description

Oral expansion device for stomatology

technical field

The utility model relates to the technical field of stomatology instruments, in particular to an oral cavity expansion device for stomatology.

Background technique

The Department of Dentistry is mainly divided into oral surgery, oral medicine and prosthodontics. When carrying out stomatological examination and treatment, it is necessary to open the patient's mouth to a certain degree of opening, so that the doctor can check and treat the condition in the patient's oral cavity through instruments. During the treatment of oral diseases, it is very difficult for the patient to open the mouth to a certain degree of opening, and the time of opening cannot be controlled, so a corresponding oral expansion device is required for auxiliary operation. There are also some defects in the use of conventional oral expansion devices, such as:

According to the patent number: CN202020223687.6 an oral expansion device for medical stomatology, the oral expansion device for medical stomatology uses the cooperation between the U-shaped plate, the horizontal plate and the plate body, so that the oral expansion device for medical stomatology can be The patient's tongue is limited to prevent the patient from feeling uncomfortable when the doctor checks the patient's oral cavity, and the tongue will move in the oral cavity, so that the oral expansion device for medical stomatology is convenient for the doctor to carry out hand-held operation, and the patient can also hold it. It is convenient for doctors to carry out oral examination;

Also there is following problem in this technical scheme:

1. The operation and use of the oral expansion device for stomatology is more troublesome;

2. The mouth expansion device for stomatology is easy to slip and fall during operation;

Therefore will improve above-mentioned problem.

Utility model content

The purpose of this utility model is to provide an oral cavity expansion device for stomatology, so as to solve the problem that the operation and use of the oral cavity expansion device for stomatology proposed in the above-mentioned background technology is cumbersome, and the oral cavity expansion device for stomatology is easy to slip and fall during operation.

In order to achieve the above purpose, the utility model provides the following technical solutions: a dental oral expansion device, including a handle, a first expansion frame and a second expansion frame, the surface of the handle is connected with an adjustment gear, and the adjustment gear The outer side of the handle is docked with an operating handle, the top side of the handle is fixed with a first expansion frame, and the side of the handle close to the adjustment gear is provided with a second expansion frame, and the outer side of one end of the second expansion frame is provided with transmission teeth strip;

Both the top ends of the first expansion frame and the second expansion frame are provided with a traction block, and a limit gear is arranged below the second expansion frame, and one end of the limit gear is connected with the surface of the handle, and the limit The side of the gear away from the handle is provided with a dial, the side of the limiting gear away from the second expansion frame is provided with a limit rod, and a tightening spring is connected between the limit rod and the dial, and the handle and A return spring is connected between the handles.

Preferably, one end of the second expansion frame is meshed and connected through a transmission rack and an adjustment gear, and the traction block is in a "U" shape. By setting the traction block in a "U" shape, it is convenient for the traction block and Anti-slip and anti-deviation should be performed when the patient's mouth is docked.

Preferably, the limit gear has a fan-shaped structure, and the limit gear and the adjustment gear are in mesh connection, and the rotation of the adjustment gear can be limited by the limit gear through the mesh connection between the limit gear and the adjustment gear. .

Preferably, the limit gear is rotatably connected to the handle through a tightening spring, and the operating handle is rotatably connected to the handle through a return spring. When the handle is released, the tightening spring pulls the limit gear against the The limit lever restricts the reverse rotation of the adjustment gear, so that the expansion device has the effect of limiting the opening degree. On the contrary, by pushing the dial to drive the limit gear to disengage from the meshing with the adjustment gear, with the assistance of the return spring, it can be convenient. The handle returns to its original position.

Preferably, a connecting rod is fixed above one side of the handle, and the side of the handle away from the handle is provided with bumps, and the bumps are distributed at equal intervals, and an anti-slip sleeve is sleeved on the outside of the handle, and The outer two ends of the anti-slip sleeve are symmetrically provided with limit protrusions, and the anti-slip sleeve is made of rubber. By setting the anti-slip sleeve and the connecting rod, the connecting rod can be hung on the fingers to avoid falling when the oral expansion device is operated.

Preferably, the inner wall of the anti-slip sleeve is provided with card slots at equal angles, and the size of the card slots matches the size of the protrusions, and the protrusions and the card slots are in a snap-fit connection. Protrusions are provided, and the anti-slip sleeve is connected to the outside of the handle, so that the slot inside the anti-slip sleeve and the protrusion on one side of the handle are stably connected, thereby facilitating the stable assembly of the anti-slip sleeve on the handle.

Compared with the prior art, the beneficial effect of the utility model is that the oral cavity expansion device for stomatology uses the operating handle to drive the adjustment gear and the transmission rack at one end of the second expansion frame to engage and drive, so that the first expansion frame and the second expansion frame The traction block on the second expansion frame opens the mouth to both sides. When the operating handle is released, the spring is tightened to pull the limit gear close to the limit rod, so that the limit gear can limit the reverse rotation of the adjustment gear. When being held on the anti-slip sleeve, the limit protrusions at the upper and lower ends of the anti-slip sleeve and the connecting rod on the operating handle can prevent the device from falling when operating the oral expansion device.

1. The oral expansion device for stomatology is held on the handle with one hand and tightened with fingers tightly on the operating handle, so that the operating handle drives the adjustment gear and the transmission rack at one end of the second expansion frame to engage and drive, so that the first The traction blocks on the first expansion frame and the second expansion frame open the mouth to both sides. When the patient’s mouth is opened to a suitable opening degree, the operating handle is released, and the spring is tightened to pull the limit gear close to the limit rod. Therefore, the limit gear can limit the reverse rotation of the adjustment gear, and it is convenient for the dentist to use the oral expansion device to inspect and treat the oral cavity with one hand;

2. The mouth expansion device for stomatology uses equal intervals on one side of the handle to set bumps, and connects the anti-slip sleeve to the outside of the handle, so that the slot inside the anti-slip sleeve and the bump on the side of the handle are stabilized. Docking, so that when the hand is held on the anti-slip sleeve, the limit protrusions at the upper and lower ends of the anti-slip sleeve are used to prevent slipping. Causes a drop when expanding the device.

Description of drawings

Fig. 1 is a schematic diagram of the main view structure of the utility model;

Fig. 2 is the schematic diagram of the main view section structure of the utility model;

Fig. 3 is the utility model right-view structure diagram;

Fig. 4 is a front view cross-sectional structural schematic diagram of the docking of the adjustment gear of the present invention and the second expansion frame;

Fig. 5 is a schematic diagram of the three-dimensional structure of the traction block of the present invention.

In the figure: 1. handle; 2. adjusting gear; 3. operating handle; 4. first expansion frame; 5. second expansion frame; 6. transmission rack; 7. traction block; 8. limit gear; 9 10, limit rod; 11, tightening spring; 12, return spring; 13, connecting rod; 14, bump; 15, anti-slip sleeve; 16, limit protrusion;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-5, the utility model provides a technical solution: an oral expansion device for stomatology, including a handle 1, a first expansion frame 4 and a second expansion frame 5, the surface of the handle 1 is connected with an adjustable gear 2, and the outside of the adjustment gear 2 is docked with an operating handle 3, one side of the top of the handle 1 is fixed with a first expansion frame 4, and the side of the handle 1 near the adjustment gear 2 is provided with a second expansion frame 5, and The outside of one end of the second expansion frame 5 is provided with a transmission rack 6, and the tops of the first expansion frame 4 and the second expansion frame 5 are provided with traction blocks 7, and the bottom of the second expansion frame 5 is provided with a limiting gear 8, and the limit One end of the position gear 8 is connected with the surface of the handle 1, the side of the position limit gear 8 away from the handle 1 is provided with a dial 9, and the side of the position limit gear 8 away from the second expansion frame 5 is provided with a position limit rod 10, Moreover, a tightening spring 11 is connected between the limit rod 10 and the dial 9 , and a return spring 12 is connected between the handle 1 and the operating handle 3 .

One end of the second expansion frame 5 is meshed and connected with the transmission rack 6 and the adjustment gear 2, and the traction block 7 is in a "U"-shaped structure; For meshing connection; the limit gear 8 is rotationally connected with the handle 1 through the tightening spring 11 , and the operating handle 3 is rotationally connected with the handle 1 through the return spring 12 .

Hold the handle 1 with one hand, hold the finger tightly on the handle 3 to tighten it, so that the handle 3 drives the adjustment gear 2 to rotate, and the rotating adjustment gear 2 and the transmission rack 6 at one end of the second expansion frame 5 perform meshing transmission , thereby driving the second expansion frame 5 to rotate outward, so that the traction blocks 7 on the first expansion frame 4 and the second expansion frame 5 open their mouths to both sides, and at the same time, the adjustment gear 2 meshes with the sector-shaped limit gear 8 , so that the limit gear 8 pulls the tightening spring 11 away from the limit rod 10, when the patient's mouth is opened to a suitable opening degree, release the operating handle 3, and the tightening spring 11 pulls the limit gear 8 close to the limit rod 10, so that the limit gear 8 can limit the reverse rotation of the adjustment gear 2. When the oral treatment is completed, push the dial 9 on the limit gear 8 with your fingers, so that the dial 9 drives the limit gear 8 to separate from the adjustment gear 2, under the push of the return spring 12, the operating handle 3 on the side of the handle 1 can be quickly reset, and the first expansion frame 4 and the second expansion frame 5 can be quickly retracted to the original position, which is convenient for the dentist. Use this oral expansion device with one-handed operation.

A connecting rod 13 is fixed above one side of the handle 3, and the side of the handle 1 away from the handle 3 is provided with bumps 14, and the bumps 14 are distributed at equal intervals, and the outer side of the handle 1 is sleeved with a non-slip sleeve 15, And the outer two ends of anti-slip cover 15 are symmetrically provided with limit protrusions 16, and anti-slip cover 15 adopts rubber material; match, and the bump 14 and the slot 17 are in a snap-fit connection.

By setting the protrusions 14 at equal intervals on one side edge of the handle 1, and connecting the anti-slip sleeve 15 to the outside of the handle 1, the slot 17 inside the anti-slip sleeve 15 and the protrusion 14 on one side of the handle 1 are stably docked, Thus, when the hand is held on the anti-slip cover 15, the stop protrusions 16 at the upper and lower ends of the anti-slip cover 15 are used to prevent slipping, and at the same time, the connecting rod 13 is fixed on the operating handle 3 so that the connecting rod 13 can be hung on the fingers to avoid Causing the oral dilator to drop while operating it.

In summary, when the oral expansion device for stomatology is in use, the "U"-shaped traction blocks 7 on the first expansion frame 4 and the second expansion frame 5 are docked with both sides of the patient's mouth, and Hold the handle 1 with one hand, hold the finger tightly on the handle 3 to tighten it, so that the handle 3 drives the adjustment gear 2 to rotate, and the rotating adjustment gear 2 and the transmission rack 6 at one end of the second expansion frame 5 perform meshing transmission , thereby driving the second expansion frame 5 to rotate outward, so that the traction blocks 7 on the first expansion frame 4 and the second expansion frame 5 open their mouths to both sides, and when the operating handle 3 is released, the tightening spring 11 pulls the limit The position gear 8 is close to the limit rod 10, so that the limit gear 8 realizes restricting the reverse rotation of the adjustment gear 2. When the hand is held on the anti-slip sleeve 15, it is controlled by the position-limiting projections 16 at the upper and lower ends of the anti-slip sleeve 15. Anti-slip, and at the same time, the oral expansion device can be hung on the fingers through the connecting rod 13 for anti-drop protection. The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art can modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the utility model, any modification, equivalent replacement, improvement, etc., should be included in the protection scope of the utility model.

Claims (7)

1. The utility model provides a department of stomatology uses oral cavity expanding device, includes grab handle (1), first expansion frame (4) and second expansion frame (5), its characterized in that:

the surface of the grab handle (1) is connected with an adjusting gear (2), the outer side of the adjusting gear (2) is in butt joint with an operating handle (3), a first expansion frame (4) is fixed on one side of the top of the grab handle (1), a second expansion frame (5) is arranged on one side of the grab handle (1) close to the adjusting gear (2), and a transmission rack (6) is arranged on the outer side of one end of the second expansion frame (5);

the top of first expansion frame (4) and second expansion frame (5) all is provided with traction block (7), the below of second expansion frame (5) is provided with stop gear (8), and the one end of stop gear (8) is connected with the surface of grab handle (1), one side that grab handle (1) was kept away from in stop gear (8) is provided with dials board (9), one side that second expansion frame (5) was kept away from in stop gear (8) is provided with gag lever post (10), and is connected with between gag lever post (10) and the group board (9) and tightens up spring (11), it has reset spring (12) to dock between grab handle (1) and operation handle (3).

2. The oral cavity dilating device for the department of stomatology of claim 1, wherein: one end of the second expansion frame (5) is meshed and connected with the adjusting gear (2) through a transmission rack (6), and the traction block (7) is of a U-shaped structure.

3. The oral cavity dilating device for the department of stomatology of claim 2, wherein: the limiting gear (8) is of a fan-shaped structure, and the limiting gear (8) is in meshed connection with the adjusting gear (2).

4. The oral cavity dilating device of claim 3, wherein: limiting gear (8) are swivelling joint through tightening up spring (11) and grab handle (1), operation handle (3) are swivelling joint through reset spring (12) and grab handle (1).

5. The oral cavity dilating device for the department of stomatology of claim 1, wherein: a connecting rod (13) is fixed above one side of the operating handle (3), a convex block (14) is arranged on one side of the grab handle (1) far away from the operating handle (3), and the convex blocks (14) are distributed at equal intervals.

6. The oral cavity dilating device of claim 5, wherein: the outer side of the grab handle (1) is sleeved with an anti-slip sleeve (15), two ends of the outer side of the anti-slip sleeve (15) are symmetrically provided with limiting bulges (16), and the anti-slip sleeve (15) is made of rubber.

7. The oral cavity dilating device of claim 6, wherein: the anti-skidding sleeve (15) is provided with clamping grooves (17) at equal included angles on the inner wall, the size of each clamping groove (17) is matched with that of each bump (14), and each bump (14) is connected with each clamping groove (17) in a clamping mode.

Images