Mouth mirror

Abstract

The utility model relates to a mouth mirror which comprises a handle, a mouth mirror neck and a mouth mirror head which are split, the handle and the mouth mirror neck are connected through an adaptive interface, the mouth mirror neck and the mouth mirror head are connected through threads, and the mouth mirror head comprises a base, a mirror face arranged in the base, a connecting ring connected with the mouth mirror neck and a connecting piece connecting the base and the connecting ring. And the base, the connecting piece and the connecting ring are integrally formed by stamping. According to the utility model, the technical progress is complied, and on the basis that the manufacturing cost of punch forming is reduced, the original process needing manual welding is canceled, so that the manufacturing cost is reduced compared with the prior art, and the advantage of commercial competition is achieved.

Description

Technical Field

[0001] The utility model relates to a dental mirror, in particular to a low-cost dental mirror adapted to a handle of an ENT detector. Background Art

[0002] A dental mirror is a commonly used instrument for ENT examination. There are many types of dental mirrors available, one of which can be adapted to the handle of an ENT detector. The neck of this dental mirror has an interface that is adapted to the handle, which is connected when in use and separated when not in use. The handle can also be adapted to other detection heads, such as those of an ophthalmoscope and an otoscope. When removed, the overall length can be reduced for easy storage. A dental mirror of this structure generally has a power supply installed in its handle, and electricity from the power supply is transmitted to a light source through the adapter interface between the handle and the neck of the dental mirror. The light from the light source is generally disposed in the neck of the dental mirror. The light from the light source is emitted from the distal opening of the dental mirror neck close to the lens of the oral cavity, and is reflected into the oral cavity of the subject by a reflective mirror installed on the lens of the oral cavity. The subject is also observed by the reflective mirror.

[0003] Among this type of dental mirrors, the one with the lowest cost has a split structure for the handle, mirror neck and mirror lens, and the handle and mirror neck are connected by an adapter interface. The mirror neck and mirror lens are generally connected by threads. The specific structure is that the mirror neck is a hollow rod, and its proximal end close to the handle is an adapter interface connected to the handle, and its distal end close to the mirror lens is provided with a hollow opening, and the light source is arranged in the hollow, and the light emitted by it is emitted from the opening, and the outer ring of the mirror neck at the opening is provided with an external thread; the mirror lens includes a base and a mirror surface arranged in the base, a connecting ring connected to the mirror neck, and a connecting piece connecting the base and the connecting ring, and the inner layer of the connecting ring is provided with an internal thread matching the external thread on the mirror neck, and the connecting piece is fixed to the base and the connecting ring by welding. For a period of time, the cost advantage of the dental mirror with this structure was obvious. However, with the advancement of technology and the increase in labor costs, the cost advantage of the dental mirror with this structure is being lost. Summary of the invention

[0004] The purpose of the utility model is to overcome the above-mentioned defects of the prior art and provide a dental mirror with lower cost.

[0005] The utility model comprises a separate handle, a mirror neck and a mirror lens; the handle and the mirror neck are connected by an adapter interface, the mirror neck and the mirror lens are connected by threads, the mirror lens comprises a base and a mirror surface arranged in the base, a connecting ring connected to the mirror neck, and a connecting piece connecting the base and the connecting ring, and the technical solution is: the base, the connecting piece and the connecting ring are integrally formed by stamping.

[0006] The above technical solution conforms to the progress of technology. On the basis of the already reduced manufacturing cost of stamping forming, the process that originally required manual welding is eliminated, which reduces the manufacturing cost compared with the existing technology and obtains a commercial competitive advantage.

[0007] A further technical solution of the utility model is that the connection ring is formed by winding a sheet material.

[0008] A further technical solution of the utility model is: the sheet material of the connecting ring is located at the end of the connection piece of the mouth lens close to the mouth lens neck, and the sheet material is perpendicular to the axis of the connection piece, extends to both sides, and curls up to form a circular ring shape.

[0009] The above structure enables the connection ring on the mouth lens to be made of a sheet material by a stamping process and then rolled into shape.

[0010] A further technical solution of the utility model is that the edge lines of the mutually closed extended ends of the sheets are in a mutually staggered shape and are mutually staggered and meshed.

[0011] A further technical solution of the utility model is: the sheet material is a first sheet material and a second sheet material, the first sheet material has at least a protruding portion and a recessed portion, the end face length of the protruding end of the protruding portion is greater than the length of the portion where the protruding portion connects with the sheet material, the opening length of the protruding end of the recessed portion is less than the length of the portion where the recessed portion connects with the sheet material, and the shape of the extended end of the second sheet material matches the shape of the extended end of the first sheet material.

[0012] The above technical solution can prevent the curled connection ring from expanding during operation, thereby improving the reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The specific contents of the utility model are further explained below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 : A schematic structural diagram of this embodiment.

[0015] Figure 2 : Schematic diagram of the structure of the import lens in this embodiment.

[0016] Figure 3 : The front view of the middle entrance lens in this embodiment.

[0017] Figure 4 : Front view of another structure of the mouth lens. Implementation

[0018] like Figures 1 to 3As shown, this embodiment includes a separate handle 1, a mirror neck 2 and a mirror lens 3. The handle 1 and the mirror neck 2 are connected by an adapter interface, the mirror neck 2 and the mirror lens 3 are connected by threads, and the mirror lens 3 includes a base 31 and a mirror surface arranged in the base 31, a connecting ring 33 connected to the mirror neck 2, and a connecting piece 32 connecting the base 31 and the connecting ring 33. The base 31, the connecting piece 32 and the connecting ring 33 are integrally formed by stamping.

[0019] The handle 1 mentioned above is generally provided with a power supply and a switch.

[0020] The above-mentioned mouth mirror neck 2 is a hollow rod, and its proximal end near the handle 1 is an adapter interface 21 connected to the handle 1, and its distal end near the mouth mirror lens 3 is provided with an opening of the hollow part, and the light source is arranged in the hollow part, and the light emitted by it is emitted from the opening, and the outer circle of the mouth mirror neck 2 at the opening is provided with an external thread. The above-mentioned light source can be a lamp bead or a light bulb, which is directly arranged at the opening of the hollow part; or it can be an optical fiber led out from the lamp bead or the light bulb, and the lead-out end of the optical fiber is arranged at the opening of the hollow part. In this structure, the lamp bead or the light bulb can be arranged inside the hollow part, or it can be arranged on the handle, and the hollow part is only provided with an optical fiber for transmitting light.

[0021] The mirror surface disposed on the base 31 may be a mirror, a mirror patch, or a mirror surface directly processed on the base.

[0022] The above-mentioned lens 3 has a first sheet 331 and a second sheet 332 extending to both sides at the end of the connecting member 32 near the lens neck 2 and in a direction perpendicular to the axis of the connecting member 32. The sheets 331 and 332 extend to both sides and then curl and close together to form a connecting ring 33. The first sheet 331 has at least one protruding portion and one concave portion. The end face length of the protruding end of the protruding portion is greater than the length of the portion where the protruding portion and the first sheet 331 meet, and the opening length of the protruding end of the concave portion is less than the length of the portion where the concave portion and the sheet meet. The shape of the extended end of the second sheet 332 matches the shape of the extended end of the first sheet 331. The edge lines of the extended ends of the two sheets 331 and 332 that are closed together are in a staggered shape and mesh with each other. That is, the protruding portion of the first sheet 331 just enters the concave portion of the second sheet 332, and the concave portion of the first sheet 331 just enters the protruding portion of the second sheet 332. In the above-mentioned mouth mirror lens 3 , the inner layer of the connecting ring 33 formed by the sheets 331 , 332 is provided with an internal thread matching the external thread on the mouth mirror neck 2 .

[0023] The sheet material may be only one piece, extending from one side and curling around to the other side. Of course, the sheet material may also be multiple pieces, stacked up and down.

[0024] The sheet material may not be closed after being rolled and wrapped, but the ring formed needs to be larger than half a circle. Figure 4 As shown, there is no need to form mutually staggered meshing shapes. The reliability of the coupling ring formed in this way will be reduced, but the cost will be lower.

Claims

1. A dental mirror, comprising a separate handle, a mirror neck and a mirror lens, wherein the handle and the mirror neck are connected by an adapter interface, the mirror neck and the mirror lens are connected by threads, the mirror lens comprises a base and a mirror surface arranged in the base, a connecting ring connected to the mirror neck, and a connecting piece connecting the base and the connecting ring, characterized in that: The base, connecting piece and connecting ring are integrally formed by stamping, and the connecting ring is formed by winding a sheet material. The sheet material of the connecting ring is located at the end of the connecting piece of the mouth lens close to the neck of the mouth lens, and the sheet material is perpendicular to the axis of the connecting piece, extends to both sides, and curls up to form a circular ring shape.

2. The dental mirror according to claim 1, characterized in that: The edge lines of the mutually closed extended ends of the sheets are in a staggered shape and mesh with each other.

3. The dental mirror according to claim 2, characterized in that: The sheets are a first sheet and a second sheet, the first sheet has at least a protruding portion and a recessed portion, the end face length of the protruding end of the protruding portion is greater than the length of the portion where the protruding portion connects with the sheet, the opening length of the protruding end of the recessed portion is less than the length of the portion where the recessed portion connects with the sheet, and the shape of the extended end of the second sheet matches the shape of the extended end of the first sheet.

Images