A device for measuring the posterior region opening

CN224776959UActive Publication Date: 2026-09-22NANJING STOMATOLOGICAL HOSPITAL
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Patent Information

Application Number
CN202522330693.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-03
Publication Date
2026-09-22
Estimated Expiration
2035-11-03

AI Technical Summary

Benefits of technology

1、本实用新型通过转动机构,可灵活调节转动杆角度并实现稳固固定,便于根据测量需求调整装置姿态。

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Abstract

The utility model belongs to the technical field of dental area measurement, and disclose a kind of device for measuring posterior dental area opening, including handle, one end of handle is equipped with rotating mechanism, one end of rotating mechanism is equipped with mounting mechanism, rotating mechanism includes rotating lever, and one end of rotating lever is rotatably connected with handle, and one end of handle is provided with recess, and the inside of recess is rotatably attached with rotating lever, and fastening hole is provided on the side of recess, and fastening screw is inserted in the inside of fastening hole with thread, and one end of fastening screw is rotatably connected with the one end of rotating lever, and fastening knob is fixedly arranged on the one end of fastening screw;The utility model can flexibly adjust the angle of rotating lever and realize stable fixation by rotating mechanism, and it is convenient to adjust device posture according to measurement requirement, and by mounting mechanism, the convenient installation, disassembly and position adjustment of measuring rod can be realized, and the use flexibility and measurement accuracy of the device are improved by the cooperation of the two.
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Description

Technical Field

[0001] This invention belongs to the field of dental measurement technology, specifically a device for measuring the opening of the posterior tooth region. Background Technology

[0002] This device for measuring the opening size of the posterior teeth is suitable for oral diagnosis and treatment scenarios. During oral examinations, treatment planning, and surgery, doctors can hold the device and place it in the posterior teeth area to accurately measure the size of the opening. This provides key data for judging the patient's oral condition and developing personalized treatment plans (such as orthodontic, restorative, or surgical plans), helping to improve the accuracy and effectiveness of diagnosis and treatment.

[0003] However, the following problems were found in the implementation of the relevant technologies: In existing posterior tooth opening measurement devices, the rotating structure is often relatively fixed, making it difficult to flexibly adjust the angle. This makes it impossible for doctors to accurately position the measuring components according to the actual oral condition and measurement needs of the patient in different measurement scenarios, increasing the difficulty and error of measurement. At the same time, the installation and disassembly process of the measuring rod is cumbersome, and the position adjustment is not convenient enough. This not only reduces the measurement efficiency, but may also affect the stability of the device due to repeated operation, thereby affecting the accuracy of the measurement results. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a device for measuring the opening of the posterior teeth region, which offers advantages such as flexible adjustment and ease of installation. This invention utilizes a rotating mechanism to flexibly adjust the angle of the rotating rod and achieve stable fixation, facilitating adjustments to the device's posture according to measurement needs. Furthermore, the mounting mechanism enables convenient installation, disassembly, and position adjustment of the measuring rod. These two aspects synergistically enhance the device's flexibility and measurement accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for measuring the opening of the posterior teeth region, comprising a grip, a rotating mechanism at one end of the grip, and a mounting mechanism at one end of the rotating mechanism. The rotating mechanism includes a rotating rod, which is rotatably connected to one end of the grip. A groove is provided at one end of the grip, the inner side of the groove is rotatably fitted with the rotating rod, a fastening hole is provided on one side of the groove, a fastening screw is threaded into the inner side of the fastening hole, the outer side of the fastening screw is rotatably connected to one end of the rotating rod, and a fastening knob is fixedly provided at one end of the fastening screw.

[0006] Preferably, the installation mechanism includes a mounting frame, the outer side of which is fixedly connected to one end of a rotating rod. A mounting block is slidably inserted into the lower surface of the mounting frame, two limiting blocks are fixedly provided on the outer side of the mounting block, a measuring rod is fixedly provided on the lower surface of the mounting block, and a mounting screw is provided on the upper surface of the mounting frame. The mounting screw slides against the upper surface of the mounting block, and a mounting knob is fixedly provided at the upper end of the mounting screw.

[0007] Preferably, two fastening washers are fitted on the outer side of the fastening screw, and the fastening washers are located at one end of the rotating rod.

[0008] Preferably, one end of the rotating rod has a rotating hole, and the inner side of the rotating hole is rotatably connected to the fastening screw.

[0009] Preferably, the outer side of the grip is covered with an anti-slip sleeve.

[0010] Preferably, the upper surface of the mounting block has a mounting hole that is threaded into the mounting screw.

[0011] Preferably, both the mounting knob and the fastening knob have anti-slip textures on their outer sides.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a rotating mechanism to flexibly adjust the angle of the rotating rod and achieve stable fixation, making it easy to adjust the posture of the device according to measurement needs.

[0013] 2. This utility model, through its installation mechanism, enables convenient installation, disassembly, and position adjustment of the measuring rod, which together enhance the flexibility of the device and the accuracy of measurement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after rotation; Figure 3 This is a schematic diagram of the rotating mechanism of this utility model; Figure 4 This is a schematic diagram of the installation mechanism of this utility model.

[0015] In the diagram: 1. Handle; 2. Rotating mechanism; 3. Mounting mechanism; 20. Rotating rod; 21. Rotating hole; 22. Fastening washer; 23. Groove; 24. Anti-slip sleeve; 25. Fastening hole; 26. Fastening screw; 27. Fastening knob; 30. Mounting block; 31. Limiting block; 32. Mounting hole; 33. Mounting screw; 34. Anti-slip texture; 35. Mounting knob; 36. Mounting bracket; 37. Measuring rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 4 As shown, this utility model provides a device for measuring the opening of the posterior teeth region, including a grip 1, a rotating mechanism 2 at one end of the grip 1, and a mounting mechanism 3 at one end of the rotating mechanism 2. The rotating mechanism 2 includes a rotating rod 20, which is rotatably connected to one end of the grip 1. A groove 23 is provided at one end of the grip 1, and the inner side of the groove 23 is rotatably fitted with the rotating rod 20. A fastening hole 25 is provided on one side of the groove 23, and a fastening screw 26 is threaded into the inner side of the fastening hole 25. The outer side of the fastening screw 26 is rotatably connected to one end of the rotating rod 20. A fastening knob 27 is fixedly provided at one end of the fastening screw 26. When it is necessary to adjust the measuring angle through the rotating mechanism 2, the fastening knob 27 is rotated counterclockwise. The fastening knob 27 drives the fastening screw 26 to rotate in the fastening hole 25 and move outward. At this time, the fastening washer 22 no longer tightly presses the rotating rod 20, and the rotating rod 20 can rotate around the connection point with the fastening screw 26 in the groove 23. After adjusting the rotating rod 20 to a suitable angle, rotate the fastening knob 27 clockwise to move the fastening screw 26 inward, and the fastening washer 22 presses the rotating rod 20, thereby fixing the angle of the rotating rod 20.

[0018] Specifically, the mounting mechanism 3 includes a mounting bracket 36. The outer side of the mounting bracket 36 is fixedly connected to one end of the rotating rod 20. A mounting block 30 is slidably inserted into the lower surface of the mounting bracket 36. Two limiting blocks 31 are fixedly provided on the outer side of the mounting block 30. A measuring rod 37 is fixedly provided on the lower surface of the mounting block 30. A mounting screw 33 is provided on the upper surface of the mounting bracket 36. The mounting screw 33 slides against the upper surface of the mounting block 30. A mounting knob 35 is fixedly provided at the upper end of the mounting screw 33. To install the measuring rod 37, the mounting block 30 is first inserted into the slot on the lower surface of the mounting bracket 36. The limiting blocks 31 serve to position the mounting block 30 and prevent it from being over-inserted or falling out. Then, the mounting knob 35 is rotated clockwise. The mounting knob 35 drives the mounting screw 33 to rotate. The mounting screw 33 moves downward through the threaded engagement with the mounting hole 32 until it presses the mounting block 30, thus fixing the measuring rod 37. To disassemble, rotate the mounting knob 35 counterclockwise to move the mounting screw 33 upward, loosen the mounting block 30, and then remove the mounting block 30 and the measuring rod 37.

[0019] Furthermore, the fastening washer 22 is located between one end of the rotating rod 20 and the fastening screw 26. When the fastening screw 26 is tightened to fix the rotating rod 20, it can increase the contact area, disperse the pressure, and prevent the rotating rod 20 from being damaged due to excessive local stress. At the same time, it enhances the stability of the fixation and prevents the rotating rod 20 from loosening.

[0020] It is worth noting that the rotating hole 21 at one end of the rotating rod 20 is rotatably connected to the fastening screw 26, providing a precise fulcrum for the rotation of the rotating rod 20, enabling the rotating rod 20 to rotate smoothly and flexibly around this point, thus ensuring the accuracy and smoothness of the angle adjustment of the rotating mechanism 2.

[0021] It is worth noting that the anti-slip sleeve 24 on the outside of the grip 1 increases the friction between the hand and the grip 1. When operating the device for measurement, it can effectively prevent the device from slipping and falling or the measurement from being inaccurate, thus improving the stability and safety of the operation.

[0022] It is worth mentioning that the mounting hole 32 on the upper surface of the mounting block 30 is threaded with the mounting screw 33. The mounting block 30 can be fixed and loosened by rotating the mounting screw 33. This threaded connection method is firm and easy to disassemble and install, which facilitates the replacement and maintenance of the measuring rod 37.

[0023] It is worth emphasizing that the anti-slip texture 34 on the outside of the mounting knob 35 and the fastening knob 27 increases the friction between the hand and the knob. When rotating the knob, even if the hands are sweaty or oily, the knob can be rotated more easily and accurately, which facilitates the operation and adjustment of the mounting mechanism 3 and the rotating mechanism 2.

[0024] Working principle: When the measuring angle needs to be adjusted, the fastening knob 27 is rotated counterclockwise via the rotating mechanism 2. The fastening knob 27 drives the fastening screw 26 to rotate within the fastening hole 25 and move outward. At this time, the fastening washer 22 no longer tightly presses against the rotating rod 20, and the rotating rod 20 can rotate around the connection point with the fastening screw 26 within the groove 23. After adjusting the rotating rod 20 to a suitable angle, the fastening knob 27 is rotated clockwise, causing the fastening screw 26 to move inward. The fastening washer 22 presses against the rotating rod 20, thereby fixing the angle of the rotating rod 20.

[0025] To install the measuring rod 37 using the mounting mechanism 3, first insert the mounting block 30 into the slot on the lower surface of the mounting bracket 36. The limiting block 31 serves to position the mounting block 30 and prevent it from being over-inserted or falling off. Then, rotate the mounting knob 35 clockwise. The mounting knob 35 drives the mounting screw 33 to rotate. The mounting screw 33 moves downward through its threaded engagement with the mounting hole 32 until it presses the mounting block 30, thus fixing the measuring rod 37. To disassemble, rotate the mounting knob 35 counterclockwise to move the mounting screw 33 upward, loosening the mounting block 30, and then remove the mounting block 30 and the measuring rod 37.

[0026] In practical applications, when used for adult patients undergoing implantation, repair, or medullary canal surgery, the measuring rod 37 uses a 30mm cylindrical base, and a replaceable sleeve can be fitted on its outside. By combining sleeves of different heights (32mm, 34mm, 36mm, 38mm, and 40mm, etc.), multiple measurement functions can be achieved. For pediatric patients, the measuring rod 37 is designed as a cylindrical base with a height of 20mm, and its external sleeve size can be replaced (21mm, 22mm, 23mm, 24mm and 25mm, etc.) to realize multi-specification measurement function.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made 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 device for measuring the opening of the posterior region, comprising a handle (1), characterized in that: One end of the handle (1) is provided with a rotating mechanism (2), one end of the rotating mechanism (2) is provided with a mounting mechanism (3); The rotating mechanism (2) comprises a rotating rod (20), the rotating rod (20) is rotatably connected with one end of the handle (1), one end of the handle (1) is provided with a groove (23), the inner side of the groove (23) is rotatably attached with the rotating rod (20), one side of the groove (23) is provided with a fastening hole (25), the inner side of the fastening hole (25) is threadedly provided with a fastening screw (26), the outer side of the fastening screw (26) is rotatably connected with one end of the rotating rod (20), one end of the fastening screw (26) is fixedly provided with a fastening knob (27).

2. A device for measuring the opening of a posterior region according to claim 1, characterized in that: The mounting mechanism (3) comprises a mounting frame (36), the outer side of the mounting frame (36) is fixedly connected with one end of the rotating rod (20), the lower surface of the mounting frame (36) is slidably provided with a mounting block (30), the outer side of the mounting block (30) is fixedly provided with two limiting blocks (31), the lower surface of the mounting block (30) is fixedly provided with a measuring rod (37), the upper surface of the mounting frame (36) is provided with a mounting screw (33), the mounting screw (33) is slidably attached with the upper surface of the mounting block (30), the upper end of the mounting screw (33) is fixedly provided with a mounting knob (35).

3. A device for measuring the opening of a posterior region according to claim 1, characterized in that: The outer side of the fastening screw (26) is sleeved with two fastening washers (22), the fastening washers (22) are located at one end of the rotating rod (20).

4. The device of claim 1, wherein: One end of the rotating rod (20) is provided with a rotating hole (21), the inner side of the rotating hole (21) is rotatably connected with the fastening screw (26).

5. The device of claim 1, wherein: The outer side of the handle (1) is sleeved with an anti-skid sleeve (24).

6. The device of claim 2, wherein: The upper surface of the mounting block (30) is provided with a mounting hole (32), the mounting hole (32) is threadedly matched with the mounting screw (33).

7. A device for measuring posterior region opening according to claim 2, wherein: The outer sides of the mounting knob (35) and the fastening knob (27) are both provided with anti-skid lines (34).