Ocular lens anti-falling locking device

Abstract

The utility model discloses an eyepiece anti-drop locking device, and relates to a dental instrument. Comprising a mounting frame and a supporting frame, one end of the mounting frame is connected with the supporting frame, the other end of the mounting frame is used for mounting an eyepiece, the other end of the supporting frame is used for connecting an objective lens, a locking assembly is arranged between the mounting frame and the supporting frame, the locking assembly comprises a rotating part and a locking part, the locking part is arranged on the supporting frame, and the rotating part is arranged on the supporting frame. The rotating part is arranged on the mounting frame, the mounting frame rotates to drive the rotating part to rotate in the locking part, and the rotating part is pushed to be clamped and fixed with the locking part. The device has the advantage of being more convenient to disassemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to dental instruments especially to eyepiece anti -drop locking device. BACKGROUND

[0002] Dental microscope is a commonly used dental surgical instrument, mainly responsible for the magnification of surgical field in dental surgery to facilitate fine operation. And different eyepieces need to be replaced frequently during the operation to adapt to different magnification requirements. A common fixed connection mode of microscope main body and eyepiece in the related art generally adopts threaded connection mode to ensure the reliability of connection. This connection mode has the defects of complicated operation and long replacement time during operation. The improved fixed connection mode in the related art mainly uses clamping fixation mode, which needs to rotate the eyepiece to fix the eyepiece in place, but the overall rotation stroke is long, and the defect of inconvenience of replacement still exists. SUMMARY

[0003] In order to overcome the defects of the prior art, the utility model provides an eyepiece anti -drop locking device.

[0004] The utility model adopts the following technical scheme to realize: an eyepiece anti -drop locking device, including mounting frame and support frame, one end of mounting frame is connected with support frame, the other end of mounting frame is used to install eyepiece, the other end of support frame is used to connect objective lens, locking assembly is equipped between mounting frame and support frame, locking assembly includes rotation part and locking part, locking part is located on support frame, rotation part is located on mounting frame, mounting frame drives rotation part to rotate in locking part, and pushes rotation part and locking part to clamping fixed.

[0005] The rotation part includes a rotating seat, which is fixed on the mounting frame and fixedly connected with the mounting frame, a first buckling pin is arranged on the edge of the rotating seat, the first buckling pin is inserted into the locking part, and the first buckling pin rotates in the rotating part when the rotating seat rotates.

[0006] The locking part includes a locking seat, which is fixed on the support frame, a locking hole is formed in the locking seat for inserting the rotating seat, an L-shaped clamping groove is formed in the inner wall of the locking hole, and the first buckling pin rotates in the clamping groove when the rotating seat is inserted into the locking hole.

[0007] The engaging slot comprises a vertical slot extending along the depth direction of the locking hole and a horizontal slot having one end communicated with the vertical slot and extending along the circumferential direction of the locking hole, the first locking pin being inserted into the vertical slot when the rotating seat is inserted into the locking seat, and the first locking pin being moved from the vertical slot to the horizontal slot when the rotating seat is rotated.

[0008] The locking seat is provided with a pop-up hole, the second locking pin is arranged in the pop-up hole, a compression spring is arranged between the second locking pin and the bottom of the pop-up hole, the edge of the rotating seat is provided with a locking slot for inserting the second locking pin, and the second locking pin is inserted into the locking slot when the rotating seat is locked with the locking seat.

[0009] Compared with the prior art, in the utility model, the ocular lens is installed on the mounting frame, and the mounting frame is detachably fixed with the support frame through the locking assembly. Specifically, during installation, only the rotating seat fixed on the mounting frame needs to be inserted into the locking hole, so that the first locking pin can be correspondingly inserted into the vertical slot, and then the rotating seat is rotated. During rotation, the mounting frame can be directly rotated by hand, thereby driving the rotating seat to rotate. When the rotating seat rotates, the first locking pin moves in the direction of the horizontal slot and is clamped in the horizontal slot without falling out. During rotation, the rotating seat presses on the second locking pin until the rotating seat is rotated to the position, the locking slot is opposite to the second locking pin, and then the second locking pin is inserted into the locking slot under the action of the compression spring, thereby forming clamping positioning together with the first locking pin. When replacement is needed, the second locking pin only needs to be pressed down and the rotating seat is rotated, so that the mounting frame can be detached, and the mounting frame is more convenient to detach. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is the three-dimensional structure schematic diagram of the ocular lens anti-falling locking device in the utility model;

[0011] Figure 2 is the structure schematic diagram of the ocular lens anti-falling locking device in the utility model;

[0012] Figure 3 is the rotating part structure schematic diagram of the ocular lens anti-falling locking device in the utility model;

[0013] Figure 4 is the locking part structure schematic diagram of the ocular lens anti-falling locking device in the utility model;

[0014] In the drawing: 1, mounting frame; 2, support frame; 3, locking assembly; 31, rotating part; 311, rotating seat; 312, first locking pin; 313, locking slot; 32, locking part; 321, locking seat; 322, vertical slot; 323, horizontal slot; 324, pop-up hole; 325, second locking pin; 4, ocular lens; 5, objective lens. DETAILED DESCRIPTION

[0015] The utility model will be further described below in combination with the drawings and specific embodiments. It should be noted that the embodiments described below or the technical features thereof can be combined to form new embodiments without conflict.

[0016] With reference to Figures 1-4 An eyepiece anti-dropping locking device comprises a mounting frame 1 and a support frame 2, one end of the mounting frame 1 is connected with the support frame 2, the other end of the mounting frame 1 is used for mounting an eyepiece 4, the other end of the support frame 2 is used for connecting an objective lens 5, a locking assembly 3 is arranged between the mounting frame 1 and the support frame 2, the locking assembly 3 comprises a rotating part 31 and a locking part 32, the locking part 32 is arranged on the support frame 2, the rotating part 31 is arranged on the mounting frame 1, the mounting frame 1 drives the rotating part 31 to rotate in the locking part 32, and the rotating part 31 is clamped and fixed with the locking part 32.

[0017] In the embodiment, an implementation of the rotating part 31 is given. The rotating part 31 comprises a rotating seat 311, the rotating seat 311 is fixed on the mounting frame 1 and fixedly connected with the mounting frame 1, a first clamping pin 312 is arranged on the edge of the rotating seat 311, the first clamping pin 312 is inserted into the locking part 32, and the first clamping pin 312 rotates in the rotating part 31 when the rotating seat 311 rotates. Based on the embodiment, the locking part 32 comprises a locking seat 321, the locking seat 321 is fixed on the support frame 2, a locking hole is arranged on the locking seat 321 and used for inserting the rotating seat 311, an L-shaped clamping groove is arranged on the inner wall of the locking hole, and the first clamping pin 312 rotates in the clamping groove when the rotating seat 311 is inserted into the locking hole. In the embodiment, the clamping groove comprises a vertical groove 322 and a horizontal groove 323, the vertical groove 322 extends along the depth direction of the locking hole, one end of the horizontal groove 323 communicates with the vertical groove 322 and the horizontal groove 323 extends along the circumferential direction of the locking hole, the first clamping pin 312 is inserted into the vertical groove 322 when the rotating seat 311 is inserted into the locking seat 321, and the first clamping pin 312 moves from the vertical groove 322 to the horizontal groove 323 when the rotating seat 311 rotates. When installing, only need to correspondingly insert the rotating seat 311 fixed on the mounting frame 1 into the locking hole, so that the first clamping pin 312 can be correspondingly inserted into the vertical groove 322, then rotate the rotating seat 311, and the mounting frame 1 can be directly rotated when rotating, thereby driving the rotating seat 311 to rotate. When the rotating seat 311 rotates, the first clamping pin 312 moves in the direction of the horizontal groove 323 and is clamped in the horizontal groove 323 and cannot be pulled out.

[0018] The locking seat 321 is provided with a pop-up hole 324, the second buckling pin 325 is arranged in the pop-up hole 324, a compression spring is arranged between the second buckling pin 325 and the bottom of the pop-up hole 324, the edge of the rotating seat 311 is provided with a buckling groove 313 for inserting the second buckling pin 325, and the second buckling pin 325 is inserted into the buckling groove 313 when the rotating seat 311 is buckled and locked with the locking seat 321. The rotating seat 311 is pressed on the second buckling pin 325 during rotation of the rotating seat 311, until the rotating seat 311 is rotated to the position, the buckling groove 313 is opposite to the second buckling pin 325, and then the second buckling pin 325 is inserted into the buckling groove 313 under the action of the compression spring, and the first buckling pin 312 and the second buckling pin 325 jointly form clamping positioning.

[0019] Compared with the prior art, the eyepiece 4 is mounted on the mounting frame 1, and the mounting frame 1 is detachably fixed with the support frame 2 through the locking assembly 3. Specifically, during installation, only the rotating seat 311 fixed on the mounting frame 1 needs to be inserted into the locking hole, so that the first buckling pin 312 can be inserted into the vertical groove 322, and then the rotating seat 311 is rotated, and during rotation, the mounting frame 1 can be directly rotated by hand, and the rotating seat 311 is driven to rotate. When the rotating seat 311 rotates, the first buckling pin 312 moves in the direction of the horizontal groove 323 and is clamped in the horizontal groove 323 and cannot be pulled out. During rotation, the rotating seat 311 is pressed on the second buckling pin 325, until the rotating seat 311 is rotated to the position, the buckling groove 313 is opposite to the second buckling pin 325, and then the second buckling pin 325 is inserted into the buckling groove 313 under the action of the compression spring, and the first buckling pin 312 and the second buckling pin 325 jointly form clamping positioning. When replacement is needed, only the second buckling pin 325 is pressed and the rotating seat 311 is rotated, so that the mounting frame 1 can be detached, and the mounting frame 1 is more convenient to detach.

[0020] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the range of protection of the utility model, and any non-substantial changes and replacements made by the person skilled in the art on the basis of the utility model all belong to the range of protection claimed by the utility model.

Claims

1. An eyepiece anti-detachment locking device, comprising a mounting frame and a support frame, one end of the mounting frame being connected to the support frame, the other end of the mounting frame being used to mount the eyepiece, and the other end of the support frame being used to connect the objective lens, characterized in that: A locking assembly is provided between the mounting frame and the support frame. The locking assembly includes a rotating part and a locking part. The locking part is located on the support frame, and the rotating part is located on the mounting frame. The rotation of the mounting frame drives the rotating part to rotate within the locking part, thereby engaging and fixing the rotating part with the locking part.

2. The eyepiece anti-dislodgement locking device according to claim 1, characterized in that: The rotating part includes a rotating seat, which is fixed on the mounting frame and fixedly connected to the mounting frame. The edge of the rotating seat is provided with a first fastening pin, which is inserted into the locking part. When the rotating seat rotates, the first fastening pin rotates within the rotating part.

3. The eyepiece anti-dislodgement locking device according to claim 2, characterized in that: The locking part includes a locking seat, which is fixed on the support frame. The locking seat has a locking hole for the rotating seat to be inserted into. An L-shaped engaging groove is formed on the inner wall of the locking hole. When the rotating seat is inserted into the locking hole, the first engaging pin rotates in the engaging groove.

4. The eyepiece anti-dislodgement locking device according to claim 3, characterized in that: The engaging groove includes a vertical groove and a horizontal groove. The vertical groove extends along the depth direction of the locking hole. One end of the horizontal groove is connected to the vertical groove and extends along the circumferential direction of the locking hole. When the rotating seat is inserted into the locking seat, the first engaging pin is inserted into the vertical groove. When the rotating seat rotates, the first engaging pin moves from the vertical groove to the horizontal groove.

5. The eyepiece anti-dislodgement locking device according to claim 3, characterized in that: The locking seat has a pop-out hole, and a second locking pin is provided in the pop-out hole. A compression spring is provided between the second locking pin and the bottom of the pop-out hole. The edge of the rotating seat is provided with a locking groove for the second locking pin to be inserted. When the rotating seat and the locking seat are locked together, the second locking pin is inserted into the locking groove.

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