Oral cavity observation mirror

Abstract

The utility model relates to the technical field of medical instruments, in particular to an oral cavity observation mirror which comprises a handle, a mirror base is installed at one end of the handle, a lens is fixed to the surface of the front side of the mirror base, a groove is formed in the rear side face of the mirror base, a guide frame is telescopically arranged in the groove, and a friction body is movably installed on the guide frame. The side, facing the lens, of the friction body makes contact with the inner wall of the groove, and a sealing cover is further installed at the groove. A groove is formed in the handle, a guide channel is formed in the handle and communicated with the groove, a driver is installed on the handle, a pull rope is connected to the driver, and the pull rope penetrates through the guide channel, enters the groove and is connected with the friction body. According to the utility model, the friction body capable of doing reciprocating motion is arranged in the mirror seat of the mouth mirror, heat is generated by utilizing the friction effect between the friction body and the mirror seat body, and the heat is conducted to the lens in the mirror seat, so that the temperature of the lens can be conveniently and quickly increased, and the fogging of the mouth observation mirror in the use process is effectively avoided.

Description

Technical Field

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

[0002] During oral treatment, in order for the doctor to observe the internal condition of the oral cavity clearly and intuitively, an oral observation mirror is needed to observe the internal condition of the teeth. However, when the ambient temperature is low, the temperature of the lens on the surface of the oral observation mirror is low. After the oral observation mirror is inserted into the patient's mouth, the moisture in the hot air exhaled by the patient will cause the surface of the oral observation mirror to fog up, making it impossible for the doctor to clearly observe the patient's oral condition through the oral mirror. For this reason, the doctor is generally required to use hot water or other methods to heat up the oral observation mirror in advance, which is troublesome to operate, and the heating temperature is not easy to control. Too high a temperature may cause scalding to the patient. Utility Model Content

[0003] The utility model aims to solve the defect of easy fogging in the prior art and proposes an oral observation mirror.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An oral observation mirror is designed, comprising a handle, a mirror seat is installed at one end of the handle, a lens is fixed on the front surface of the mirror seat, a groove is opened on the rear side of the mirror seat, a guide frame is telescopically arranged in the groove along a direction parallel to the plane of the lens, a friction body is movably installed on the guide frame along the depth direction of the groove, the friction body contacts the inner wall of the groove toward the lens side, and a sealing cover is also installed at the groove;

[0006] A guide path is provided in the handle along its length direction, and the guide path is connected to the groove. A driver is installed on the handle, and a pull rope is connected to the driver. The pull rope passes through the guide path and enters the groove and is connected to the friction body. The driver is used to cooperate with the pull rope to drive the friction body to reciprocate in a direction parallel to the plane of the lens.

[0007] Preferably, a plurality of elastic support members are fixedly mounted on the inner side surface of the sealing cover, and the elastic support members are used to provide elastic support force to the friction body along the depth direction of the groove.

[0008] Preferably, the mirror seat is made of metal, and the surface of the friction body facing the groove is covered with a wear-resistant rubber material.

[0009] Preferably, the driver includes a fixed shaft, which is fixed on the side of the handle, and a pressure rod is rotatably mounted on the fixed shaft. The side of the handle is also penetrated by a through hole connected to the guide channel, and the pull rope passes through the through hole and is fixedly connected to one end of the adjacent pressure rod.

[0010] Preferably, the pressure rod is generally zigzag-shaped, and the surface of the pressure rod is spray-coated.

[0011] The utility model provides an oral observation mirror, which has the beneficial effect of: a friction body capable of reciprocating motion is built into the mirror seat of the oral mirror, and heat is generated by the friction between the friction body and the mirror seat body, and the heat is transferred to the lens in the mirror seat, so that the lens can be heated up conveniently and quickly, and the heating temperature is appropriate and not too high, thereby effectively preventing the oral observation mirror from fogging during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of an oral observation mirror proposed by the utility model;

[0013] Figure 2 This is a cross-sectional schematic diagram of an oral observation mirror proposed by the utility model;

[0014] Figure 3 This is a schematic diagram of the interior of a mirror base of an oral observation mirror proposed by the utility model;

[0015] Figure 4 The utility model is a schematic diagram of the friction body structure of an oral observation mirror.

[0016] In the figure: 1. handle; 2. mirror base; 3. lens; 4. groove; 5. guide frame; 6. spring; 7. friction body; 8. elastic support member; 9. sealing cover; 10. pull rope; 11. fixed shaft; 12. pressure rod. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Example 1

[0019] Reference Figure 1-4 An oral observation mirror comprises a handle 1, a mirror base 2 is mounted at one end of the handle 1, the mirror base 2 is made of metal, and a friction body 7 is covered with a wear-resistant rubber material on the side facing the groove 4. The metal mirror base 2 can transfer heat to the lens 3 more quickly, and the wear-resistant rubber material can be more wear-resistant and generate less debris.

[0020] A lens 3 is fixed on the front surface of the lens holder 2, and a groove 4 is provided on the rear side of the lens holder 2. A guide frame 5 is retractably provided in the inner edge of the groove 4 in a direction parallel to the plane of the lens 3. A friction body 7 is installed on the guide frame 5 in a movable manner in the depth direction of the groove 4. The guide frame 5 is in a square shape as a whole, and the two ends of the guide frame 5 are connected to the inner wall of the groove 4 through a plurality of springs 6, and the springs 6 are all arranged parallel to the handle 1. The friction body 7 is embedded and installed in the guide frame 5. The square-shaped guide frame 5 allows the friction body 7 to move on the guide frame 5 in the depth direction of the groove 4, and then cooperate with the elastic support member 8, so that the friction body 7 can automatically adjust the gap between it and the inner wall of the groove 4.

[0021] The friction body 7 contacts the inner wall of the groove 4 on the side facing the lens 3, and a sealing cover 9 is also installed at the groove 4; a plurality of elastic support members 8 are fixedly installed on the inner side of the sealing cover 9, and the elastic support members 8 are used to provide elastic support force for the friction body 7 along the depth direction of the groove 4. During the friction process, the thickness of the friction body 7 decreases, so that the gap between it and the inner wall of the groove 4 increases. The elastic support members 8 can always press the friction body 7 against the inner wall of the groove 4, avoiding the situation where the friction effect is poor due to the increase in the gap. The elastic support member 8 is a zigzag spring.

[0022] A guide path is provided inside the handle 1 along its length direction, and the guide path is connected to the groove 4. A driver is installed on the handle 1, and a pull rope 10 is connected to the driver. The pull rope 10 passes through the guide path and enters the groove 4, and is connected to the friction body 7. The driver is used to cooperate with the pull rope 10 to drive the friction body 7 to reciprocate in a direction parallel to the plane of the lens 3.

[0023] The utility model has a friction body 7 capable of reciprocating motion built into the mirror base 2 of the oral mirror, and utilizes the friction between the friction body 7 and the main body of the mirror base 2 to generate heat, and conducts the heat to the lens 3 in the mirror base 2, so that the lens 3 can be heated up conveniently and quickly, and the heating temperature is appropriate and not too high.

[0024] Example 2

[0025] Reference Figure 1-2As another preferred embodiment of the utility model, the difference from embodiment 1 is that the driver includes a fixed shaft 11, the fixed shaft 11 is fixed on the side of the handle 1, a pressure rod 12 is rotatably mounted on the fixed shaft 11, and a through hole connected to the guide channel is also penetrated through the side of the handle 1, and the pull rope 10 is fixedly connected to one end of the adjacent pressure rod 12 after passing through the through hole. The pressure rod 12 is generally zigzag-shaped, and the surface of the pressure rod 12 is sprayed with plastic. The driver sets the pressure rod 12 in a zigzag shape, so that the operator can reciprocate by pressing the pressure rod 12 with his hand while holding the handle 1, so as to use the pressure rod 12 to reciprocate and pull the pull rope 10, so that the pull rope 10 can drive the friction body 7 to reciprocate, which is more convenient to operate.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An oral observation mirror, comprising a handle (1), characterized in that: A mirror base (2) is mounted on one end of the handle (1); a lens (3) is fixed on the front surface of the mirror base (2); a groove (4) is provided on the rear side of the mirror base (2); a guide frame (5) is telescopically arranged in the inner edge of the groove (4) in a direction parallel to the plane of the lens (3); a friction body (7) is movably mounted on the guide frame (5) in a depth direction of the groove (4); the friction body (7) contacts the inner wall of the groove (4) towards the side of the lens (3); and a sealing cover (9) is also mounted on the groove (4); The handle (1) is provided with a guide path running through it along its length direction, the guide path is connected to the groove (4), a driver is installed on the handle (1), a pull rope (10) is connected to the driver, the pull rope (10) passes through the guide path and enters the groove (4), and is connected to the friction body (7), and the driver is used to cooperate with the pull rope (10) to drive the friction body (7) to reciprocate in a direction parallel to the plane of the lens (3).

2. The oral observation mirror according to claim 1, characterized in that: A plurality of elastic support members (8) are fixedly mounted on the inner side surface of the sealing cover (9), and the elastic support members (8) are used to provide elastic support force to the friction body (7) along the depth direction of the groove (4).

3. The oral observation mirror according to claim 1, characterized in that: The mirror seat (2) is made of metal, and the surface of the friction body (7) facing the groove (4) is covered with a wear-resistant rubber material.

4. The oral observation mirror according to claim 1, characterized in that: The driver comprises a fixed shaft (11), the fixed shaft (11) being fixed on the side of the handle (1), a pressure rod (12) being rotatably mounted on the fixed shaft (11), a through hole communicating with the guide channel being also penetrated through the side of the handle (1), and the pull rope (10) is fixedly connected to one end of the adjacent pressure rod (12) after passing through the through hole.

5. The oral observation mirror according to claim 4, characterized in that: The pressure rod (12) is generally in a zigzag shape, and the surface of the pressure rod (12) is spray-coated.

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