Oral impression instrument scanning head mounting structure

Abstract

The utility model relates to the technical field of oral impression instruments, in particular to an oral impression instrument scanning head installation structure which comprises an oral impression instrument body and a fixing assembly, the oral impression instrument body is composed of a scanning head and a handle, the scanning head is connected with the handle, and the fixing assembly is arranged between the scanning head and the handle. The fixing assembly comprises a driving assembly and a driven assembly. According to the utility model, the driven assembly and the driving assembly are respectively arranged on the handle and the scanning head, the rectangular block in the driven assembly is limited through the rotation of the limiting plate in the driving assembly, the positions of the handle and the scanning head are limited through the staggering of the rectangular block and the driving assembly, and meanwhile, the arranged worm and gear structure can prevent the limiting plate from rotating reversely; the feedback assembly can synchronously rotate along with the worm gear, and a worker can conveniently mount and dismount the handle and the scanning head through prompt tone and vibration generated by collision of the spring piece and the fixing ring.

Description

Technical Field

[0001] This utility model relates to the field of dental impression instrument technology, specifically to a dental impression instrument scanning head mounting structure. Background Technology

[0002] The oral digital impression instrument is an oral examination tool. Its basic principle is to use computer digital image processing technology to obtain accurate impressions of oral tissues such as teeth and gums, so as to obtain oral information such as tooth arrangement, occlusion, and the condition of oral soft tissues.

[0003] Chinese Patent No. CN222055636U discloses a mounting and fixing structure for a digital impression instrument for dentistry, including a handle and a scanning head. A mounting plate is fixedly connected inside the handle. Multiple arrayed slide rails are fixedly connected to the upper surface of the mounting plate. Slider blocks are slidably connected to the outer walls of the slide rails. Connecting rods are fixedly connected to the upper surfaces of the sliders. Locking blocks matching locking slots are fixedly connected to the outer walls of the connecting rods near locking rings. Short posts are fixedly connected to the lower surfaces of the sliders. A turntable is rotatably connected to the inner wall of the mounting plate. Multiple arrayed sliding grooves are formed on the outer wall of the turntable. Multiple short posts are slidably connected to the multiple sliding grooves. A gear is fixedly connected to the lower surface of the turntable. A rotating shaft is rotatably connected inside the handle. A worm gear is fixedly connected to the outer wall of the rotating shaft. The worm gear meshes with the gear. The turntable drives multiple locking blocks to engage in the locking slots, securing the scanning head and handle securely.

[0004] However, in the above technical solution, the worm gear is rotated to drive the worm wheel to rotate, and the scanning head is connected to the handle through the meshing of the two. However, when the device is in use, the worm gear has a self-locking function, which means that it is inconvenient to disassemble after the scanning head is connected to the handle. Forcible disassembly will damage the structure on the scanning head and the handle. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a scanning head mounting structure for an oral impression instrument.

[0006] The technical solution of this utility model is as follows: A scanning head mounting structure for an oral impression instrument includes a main body of the oral impression instrument, which consists of a scanning head and a handle, with the scanning head connected to the handle; a fixing component is disposed between the scanning head and the handle, the fixing component includes an active component and a driven component, the driven component includes a connecting rod and a rectangular block, the connecting rod is connected to one end of the scanning head, and the rectangular block is connected to the connecting rod; the active component includes a limiting plate, the limiting plate is rotatably connected to a receiving cavity opened on the handle, and the limiting plate has a limiting notch that cooperates with the rectangular block; in the use state of the fixing component, the connecting rod and the rectangular block are inserted into the limiting notch, and the rectangular block rotates and changes from an overlapping state to an interleaved state with the limiting plate to restrict the movement of the rectangular block.

[0007] Preferably, the active component further includes an adjusting member, one end of which is rotatably connected to the receiving cavity; a worm gear connected to a limiting plate, the worm gear being arranged parallel to the limiting plate; and a worm connected to the adjusting member, the worm gear being meshed with the worm gear for transmission.

[0008] Preferably, the fixing component further includes a feedback component connected to the handle. The feedback component consists of a connecting ring, a spring plate, and a fixing ring. The connecting ring is arranged parallel to the worm gear and connected to the worm gear. The spring plate is connected to the connecting ring. The fixing ring is connected to the receiving cavity and has multiple notches.

[0009] Preferably, the adjusting component consists of an adjusting rod and an adjusting knob. One end of the adjusting rod is connected to a worm gear, and the other end of the worm gear is rotatably connected to the receiving cavity. The adjusting knob is slidably connected to the other end of the adjusting rod.

[0010] Preferably, the adjusting rod is connected to multiple grooves, and the adjusting knob is connected to a protrusion that slides in connection with the grooves.

[0011] Preferably, the handle has a notch for accommodating the adjustment handle, and multiple protrusions are connected inside the notch, which cooperate with the anti-slip texture on the adjustment knob.

[0012] Preferably, the adjustment knob is provided with an axially extending indicator mark, and the handle is provided with a reference mark that mates with the indicator mark.

[0013] Preferably, the grip part of the handle is covered with an anti-slip pad.

[0014] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0015] In this invention, a driven component and an active component are respectively provided on the handle and the scanning head. The rotation of the limiting plate in the active component restricts the rectangular block in the driven component. The interlacing of the two restricts the position of the handle and the scanning head. At the same time, the worm gear structure can prevent the limiting plate from reversing. The feedback component can rotate synchronously with the worm gear. The prompt sound and vibration generated by the collision between the spring plate and the fixed ring facilitate the installation and removal of the handle and the scanning head by the operator. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 for Figure 1 Enlarged view of the structure at point A;

[0018] Figure 3 for Figure 1 A cross-sectional view;

[0019] Figure 4 This is a schematic diagram of the scanning head structure;

[0020] Figure 5 This is a schematic diagram of the fixed component structure;

[0021] Figure 6 This is a schematic diagram of the feedback component structure.

[0022] Reference numerals: 1. Main body of the dental impression instrument; 2. Scanning head; 3. Handle; 4. Connecting rod; 5. Rectangular block; 6. Rotating ring; 7. Limiting plate; 8. Accommodating cavity; 9. Limiting notch; 10. Adjusting component; 11. Worm gear; 12. Worm; 13. Connecting ring; 14. Spring plate; 15. Fixing ring; 16. Adjusting rod; 17. Adjusting knob; 18. Groove; 19. Protrusion; 20. Limiting groove; 21. Indicator mark; 22. Reference mark; 23. Anti-slip pad. Detailed Implementation

[0023] Example 1

[0024] like Figures 1-6 As shown, the present invention proposes a scanning head mounting structure for an oral impression device, comprising an oral impression device body 1 and a fixing component. The oral impression device body 1 consists of a scanning head 2 and a handle 3. The scanning head 2 is connected to the handle 3. The fixing component is disposed between the scanning head 2 and the handle 3. The fixing component includes an active component and a driven component. The driven component includes a connecting rod 4 and a rectangular block 5. The connecting rod 4 is connected to one end of the scanning head 2, and the rectangular block 5 is connected to the connecting rod 4. The active component includes a limiting plate 7, which is rotatably connected to a receiving cavity 8 opened on the handle 3. The limiting plate 7 has a limiting notch 9 that cooperates with the rectangular block 5. When the fixing component is in use, the connecting rod 4 and the rectangular block 5 are inserted into the limiting notch 9. The rectangular block 5 rotates and changes from an overlapping state to an interleaved state with the limiting plate 7, restricting the movement of the rectangular block 5.

[0025] Example 2

[0026] like Figures 2-6 As shown, the present invention proposes a scanning head mounting structure for an oral impression instrument. Compared with Embodiment 1, this embodiment describes the detailed structure of the fixing component. The active component also includes an adjusting member 10, a worm gear 11, and a worm 12. One end of the adjusting member 10 is rotatably connected to the receiving cavity 8 by a bearing. The worm gear 11 is connected to the limiting plate 7 and is arranged parallel to the limiting plate 7. The worm 12 is connected to the adjusting member 10, and the worm 12 and the worm gear 11 are meshed and connected for transmission.

[0027] The fixed assembly also includes a feedback assembly connected to the handle 3. The feedback assembly consists of a connecting ring 13, a spring plate 14, and a fixed ring 15. The connecting ring 13 is arranged parallel to the worm gear 11 and is connected to the worm gear 11. The spring plate 14 is connected to the connecting ring 13. The fixed ring 15 is connected to the receiving cavity 8 and has multiple notches.

[0028] In an optional embodiment, the adjusting member 10 consists of an adjusting rod 16 and an adjusting knob 17. One end of the adjusting rod 16 is connected to the worm gear 12, and the other end of the worm gear 12 is rotatably connected to the receiving cavity 8. The adjusting knob 17 is slidably connected to the other end of the adjusting rod 16.

[0029] In an optional embodiment, the adjusting rod 16 is connected to a plurality of grooves 18, and the adjusting knob 17 is connected to a protrusion 19 that is slidably connected to the grooves 18; the arrangement of the protrusion 19 and the grooves 18 enables the adjusting knob 17 to be moved and stored to prevent accidental activation.

[0030] In an optional embodiment, the handle 3 has a notch for accommodating the adjustment knob 17, and a plurality of protrusions 20 are provided inside the notch. The protrusions 20 cooperate with the anti-slip texture on the adjustment knob 17. The protrusions 20 can prevent the adjustment knob 17 from continuing to rotate inside the notch and becoming loose.

[0031] In an optional embodiment, an axially extending indicator mark 21 is provided on the adjustment knob 17, and a reference mark 22 that cooperates with the indicator mark 21 is provided on the handle 3; the setting of the indicator mark 21 and the reference mark 22 can facilitate the observation of the current status and facilitate the disassembly and assembly of the handle 3.

[0032] In an optional embodiment, the grip portion of the handle 3 is covered with an anti-slip pad; the protective pad is made of silicone or rubber material, which can prevent the handle 3 from getting wet and causing slippage.

[0033] In summary, when using this utility model, when the scanning head 2 is installed on the handle 3, the rectangular block 5 on the scanning head 2 is aligned with the limiting notch 9 on the limiting plate 7, thus placing it into the receiving cavity 8. At this time, the scanning head 2 and the handle 3 are in an inclined state. Alternatively, the rectangular block 5 can be directly placed into the receiving cavity 8, and then the adjusting knob 17 is rotated to drive the adjusting rod 16 and the worm gear 12 to rotate. The worm gear 12 drives the worm wheel 11 to rotate, and the worm wheel 11 drives the connecting ring 13 and the limiting plate 7 to rotate synchronously. The position of the limiting notch 9 on the limiting plate 7 changes from coinciding with the rectangular block 5 to intersecting with it. At the same time, the connecting ring 13... The rotation of 3 causes the spring plate 14 to rotate synchronously. During the rotation, the spring plate 14 comes into contact with the notch on the fixed ring 15. The two collide and vibrate, indicating to the staff that the current position has restricted the rectangular block 5. The adjustable knob 17 can be pushed to slide along the groove 18 into the notch to store it. When it is necessary to remove the scanning head 2, the oral impression instrument body 1 is tilted so that the adjustable knob 17 slides along the groove 18. Then, it continues to rotate and the current angle is known according to the indicator mark 21 and the reference mark 22, so that the limiting notch 9 coincides with the rectangular block 5, thereby removing it.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A scanning head mounting structure for a dental impression instrument, characterized in that, include The main body (1) of the oral impression instrument consists of a scanning head (2) and a handle (3), with the scanning head (2) connected to the handle (3); The fixing component is located between the scanning head (2) and the handle (3). The fixing component includes an active component and a driven component. The driven component includes a connecting rod (4) and a rectangular block (5). The connecting rod (4) is connected to one end of the scanning head (2), and the rectangular block (5) is connected to the connecting rod (4). The active component includes a limiting plate (7). The limiting plate (7) is rotatably connected to the receiving cavity (8) opened on the handle (3). The limiting plate (7) has a limiting notch (9) that cooperates with the rectangular block (5). When the fixing component is in use, the connecting rod (4) and the rectangular block (5) are inserted into the limiting notch (9). The rectangular block (5) rotates and changes from an overlapping state with the limiting plate (7) to an interleaved state to restrict the movement of the rectangular block (5).

2. The dental impression instrument scanning head mounting structure according to claim 1, characterized in that, Active components also include Adjusting element (10), one end of which is rotatably connected to the receiving cavity (8); A worm gear (11) is connected to a limiting plate (7), and the worm gear (11) is arranged parallel to the limiting plate (7); The worm (12) is connected to the adjusting member (10) and is meshed with the worm wheel (11) for transmission.

3. The dental impression instrument scanning head mounting structure according to claim 2, characterized in that, The fixing components also include The feedback component is connected to the handle (3). The feedback component consists of a connecting ring (13), a spring plate (14), and a fixing ring (15). The connecting ring (13) is arranged parallel to the worm gear (11) and is connected to the worm gear (11). The spring plate (14) is connected to the connecting ring (13). The fixing ring (15) is connected to the receiving cavity (8) and has multiple notches.

4. The dental impression instrument scanning head mounting structure according to claim 1, characterized in that, The adjusting component (10) consists of an adjusting rod (16) and an adjusting knob (17). One end of the adjusting rod (16) is connected to the worm gear (12), and the other end of the worm gear (12) is rotatably connected to the receiving cavity (8). The adjusting knob (17) is slidably connected to the other end of the adjusting rod (16).

5. The dental impression instrument scanning head mounting structure according to claim 4, characterized in that, The adjusting rod (16) is connected to multiple grooves (18), and the adjusting knob (17) is connected to a protrusion (19) that slides in connection with the grooves (18).

6. The mounting structure for a dental impression scanner according to claim 1, characterized in that, The handle (3) has a notch for accommodating the adjustment handle (3), and multiple protrusions (20) are connected inside the notch. The protrusions (20) cooperate with the anti-slip texture on the adjustment knob (17).

7. The dental impression instrument scanning head mounting structure according to claim 1, characterized in that, An axially extending indicator mark (21) is provided on the adjustment knob (17), and a reference mark (22) that cooperates with the indicator mark (21) is provided on the handle (3).

8. The dental impression instrument scanning head mounting structure according to claim 1, characterized in that, The grip part of the handle (3) is covered with an anti-slip pad.

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