Wireless charging retention device of oral cavity digital impression instrument

Abstract

The utility model relates to the technical field of oral digital impression instruments, in particular to a wireless charging retention device of an oral digital impression instrument, which comprises a shell and a clamping device. A charging seat is arranged on the shell; the clamping device comprises a lifting rod connected to the shell in a sliding mode, a containing plate, a rack, a fixing frame arranged in the shell, a rotating rod, a connecting shaft, a first gear, a second gear and a third gear, wherein the containing plate and the rack are arranged on the lifting rod, the rotating rod and the connecting shaft are rotationally connected to the fixing frame, the first gear and the second gear are coaxially arranged at the two ends of the rotating rod respectively, and the third gear is coaxially arranged on the rotating rod. The two sliding blocks are symmetrically distributed and are in threaded connection with the rotating rod, the connecting rods are arranged on the sliding blocks, and the clamping plates are arranged on the connecting rods; the first gear is meshed with the rack, the second gear is meshed with the third gear, and the sliding block is slidably arranged in the fixing frame. According to the utility model, the operation difficulty when the oral digital impression instrument is charged, fixed and taken can be greatly reduced, and the use convenience of the retention device is improved.

Description

Technical Field

[0001] This utility model relates to the field of dental digital impression instrument technology, and in particular to a wireless charging and positioning device for a dental digital impression instrument. Background Technology

[0002] A digital impression instrument is a digital device used in the field of oral medicine. Using optical scanning technologies such as laser scanning and structured light scanning, it performs high-precision three-dimensional scanning of oral tissues such as teeth and gums, acquiring a digital model of the oral cavity. This allows for precise capture of details such as tooth shape and surface texture, providing accurate data support for treatments such as dental restoration and orthodontics.

[0003] Chinese Patent No. CN221428632U discloses a wireless charging and fixation device for a digital dental impression instrument, including a mounting plate. An impression instrument body is mounted on the front end face of the mounting plate, and an end cap is mounted on the upper end face of the impression instrument body. Two circular holes are formed on the front end face of the mounting plate, each containing a sleeve. A sleeve rod is inserted into each sleeve, and a spring is installed between the sleeve and the sleeve rod. A limiting plate is mounted on the front end face of the two sleeve rods, located on the front end face of the impression instrument body. The limiting plate effectively fixes and limits the position of the impression instrument body. Furthermore, it allows a first connecting plate and a second connecting plate to be magnetically engaged and fixed, thereby limiting and fixing the lower part of the impression instrument body through the first and second connecting plates. This dual-fixation structure effectively fixes the impression instrument body, ensuring stable wireless charging of the impression instrument body.

[0004] However, the above technical solution has the following shortcomings: When using the wireless charging and positioning device of the dental digital impression instrument, it is necessary to manually pull the limiting plate so that the dental digital impression instrument can be inserted, and it is also necessary to manually pull to complete the insertion and release of the first connecting plate and the second connecting plate. The operation is relatively troublesome and inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a wireless charging and fixation device for a digital dental impression instrument, which can greatly reduce the operational difficulty of charging, fixing, and retrieving the digital dental impression instrument, and improve the convenience of using the fixation device.

[0006] The present invention provides a wireless charging and positioning device for a digital dental impression instrument, comprising a housing and a clamping device. A charging base is provided on the housing. The clamping device includes a lifting rod slidably connected to the housing, a placement plate and a rack on the lifting rod, a fixed frame inside the housing, a rotating rod and a connecting shaft rotatably connected to the fixed frame, a first gear and a second gear coaxially disposed at both ends of the rotating rod, a third gear coaxially disposed on the rotating rod, two symmetrically distributed sliders threadedly connected to the rotating rod, a connecting rod on the sliders, and a clamping plate on the connecting rod. The first gear and the rack are meshed, the second gear and the third gear are meshed, and the sliders are slidably disposed inside the fixed frame.

[0007] Preferably, the rotating rod is provided with two first threaded portions and second threaded portions with opposite directions of rotation and symmetrically distributed, and the two sliders are respectively threadedly connected to the first threaded portion and the second threaded portion.

[0008] Preferably, the clamping plate is provided with an arc-shaped abutment part, and the clamping surface of the clamping plate is rounded.

[0009] Preferably, the housing has two elongated holes, through which the connecting rod passes and is slidably connected.

[0010] Preferably, the clamping device further includes a support assembly disposed inside the housing. The support assembly includes two support plates disposed on the lifting rod, a telescopic rod disposed on the support plates, a spring disposed on the telescopic rod, and two fixed cylinders disposed inside the housing, with the other end of the spring disposed on the fixed cylinder.

[0011] Preferably, a support rod is provided on the housing, and a base is provided at the bottom of the support rod.

[0012] Preferably, a counterweight is provided on the base.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] This invention features a clamping device that allows the digital dental impression device to be charged simply by placing its bottom on the placement plate. The arc-shaped abutment on the clamping plate securely holds the digital dental impression device to the charging base. When the digital dental impression device needs to be removed, it can be lifted upwards. The operation is simple and convenient, and it has excellent practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model;

[0017] Figure 3 This is a partial cross-sectional schematic diagram of the clamping device of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the support component of this utility model.

[0019] Reference numerals in the attached drawings: 1. Housing; 2. Charging base; 3. Lifting rod; 4. Placement plate; 5. Rack; 6. Fixing frame; 7. Rotating rod; 8. First gear; 9. Connecting shaft; 10. Second gear; 11. Third gear; 12. Slider; 13. Connecting rod; 14. Clamping plate; 15. Arc-shaped abutment part; 16. Support plate; 17. Telescopic rod; 18. Spring; 19. Fixing cylinder; 20. Support rod; 21. Base; 22. Counterweight. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-4 As shown in the figure, the wireless charging and holding device for a digital dental impression instrument proposed in this embodiment includes a housing 1 and a clamping device; a charging base 2 is provided on the housing 1.

[0022] The clamping device includes a lifting rod 3 slidably connected to the housing 1, a placement plate 4 and a rack 5 disposed on the lifting rod 3, a fixed frame 6 disposed inside the housing 1, a rotating rod 7 and a connecting shaft 9 rotatably connected to the fixed frame 6, a first gear 8 and a second gear 10 respectively coaxially disposed at both ends of the rotating rod 7, a third gear 11 coaxially disposed on the rotating rod 7, two symmetrically distributed sliders 12 threadedly connected to the rotating rod 7, a connecting rod 13 disposed on the sliders 12, and a clamping plate 14 disposed on the connecting rod 13; the first gear 8 and the rack 5 are meshed, the second gear 10 and the third gear 11 are meshed, the rotating rod 7 is provided with two first threaded parts and second threaded parts with opposite directions and symmetrically distributed, the two sliders 12 are respectively threadedly connected to the first threaded parts and the second threaded parts, the sliders 12 are slidably disposed inside the fixed frame 6, the housing 1 is provided with two elongated holes, and the connecting rod 13 passes through and is slidably connected to the elongated holes.

[0023] The clamping plate 14 is provided with an arc-shaped abutment part 15, and the clamping surface of the clamping plate 14 is rounded.

[0024] like Figure 4 As shown, the clamping device also includes a support assembly disposed inside the housing 1. The support assembly includes two support plates 16 disposed on the lifting rod 3, a telescopic rod 17 disposed on the support plate 16, a spring 18 disposed on the telescopic rod 17, and two fixed cylinders 19 disposed inside the housing 1. The other end of the spring 18 is disposed on the fixed cylinder 19.

[0025] In this embodiment, when the digital dental impression device needs to be charged, simply place the bottom of the device on the placement plate 4. Under the weight of the device, the placement plate 4 pulls the lifting rod 3 downwards. The lifting rod 3 moves the rack 5 and support plate 16, causing the rack 5 to mesh with the first gear 8. The first gear 8 drives the connecting shaft 9 to rotate, causing the second gear 10 and third gear 11 to mesh. The third gear 11 drives the rotating rod 7 to rotate, driving the two sliders 12 to engage with the first and second threaded portions respectively. The sliders 12 then drive the connecting rod 13 to move closer together along the axial direction of the rotating rod 7 until the clamping plate 14 holds the digital dental impression device. Because the clamping plate 14 is equipped with… The arc-shaped abutment part 15 allows the clamping plate 14 to apply a pushing force towards the charging base 2 to the digital impression device during the movement and clamping process. This ensures that the back of the digital impression device fits against the charging base 2. Furthermore, the rounded corners of the clamping surface prevent wear on the surface of the digital impression device, providing excellent practicality. Simultaneously, the support plate 16 lowers along with the lifting rod 3, which in turn lowers the telescopic rod 17. The telescopic rod 17, in conjunction with the fixing cylinder 19, compresses the spring 18, providing a buffer when the digital impression device is placed and restoring the initial position of the placement plate 4. To remove the digital impression device, simply lift it upwards; the operation is simple and convenient.

[0026] Example 2

[0027] like Figure 1 As shown in the figure, the wireless charging and positioning device for a digital dental impression instrument proposed in this embodiment has the following features compared to the first embodiment: a support rod 20 is provided on the housing 1, a base 21 is provided at the bottom of the support rod 20, and a counterweight 22 is provided on the base 21. The support rod 20 is used to support the housing 1 in the air and provide space for the placement plate 4 to rise and fall. The base 21 and the counterweight 22 are used to ensure the stability of the entire device.

[0028] 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. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A wireless charging and retention device for a digital dental impression instrument, characterized in that, include: A housing (1) on which a charging base (2) is provided; The clamping device includes a lifting rod (3) slidably connected to the housing (1), a placement plate (4) and a rack (5) disposed on the lifting rod (3), a fixed frame (6) disposed inside the housing (1), a rotating rod (7) and a connecting shaft (9) rotatably connected to the fixed frame (6), a first gear (8) and a second gear (10) coaxially disposed at both ends of the rotating rod (7), a third gear (11) coaxially disposed on the rotating rod (7), two symmetrically distributed sliders (12) threadedly connected to the rotating rod (7), a connecting rod (13) disposed on the sliders (12), and a clamping plate (14) disposed on the connecting rod (13); the first gear (8) and the rack (5) are meshed, the second gear (10) and the third gear (11) are meshed, and the sliders (12) are slidably disposed inside the fixed frame (6).

2. The wireless charging and retention device for a digital dental impression instrument according to claim 1, characterized in that, The rotating rod (7) is provided with two first threaded parts and second threaded parts with opposite directions and symmetrical distribution. The two sliders (12) are threadedly connected to the first threaded part and the second threaded part respectively.

3. The wireless charging and retention device for a digital dental impression instrument according to claim 1, characterized in that, The clamping plate (14) is provided with an arc-shaped abutment part (15), and the clamping surface of the clamping plate (14) is rounded.

4. The wireless charging and retention device for a digital dental impression instrument according to claim 1, characterized in that, The housing (1) has two elongated holes, through which the connecting rod (13) passes and is slidably connected.

5. The wireless charging and retention device for a digital dental impression instrument according to claim 1, characterized in that, The clamping device also includes a support assembly disposed inside the housing (1). The support assembly includes two support plates (16) disposed on the lifting rod (3), a telescopic rod (17) disposed on the support plate (16), a spring (18) disposed on the telescopic rod (17), and two fixed cylinders (19) disposed inside the housing (1). The other end of the spring (18) is disposed on the fixed cylinder (19).

6. The wireless charging and retention device for a digital dental impression instrument according to claim 1, characterized in that, A support rod (20) is provided on the housing (1), and a base (21) is provided at the bottom of the support rod (20).

7. The wireless charging and retention device for a digital dental impression instrument according to claim 6, characterized in that, A counterweight (22) is provided on the base (21).

Images