Nail extractor

Abstract

The utility model relates to the technical field of nail taking devices, and discloses a nail taking device which comprises a connecting block, the automatic screw clamping mechanism is arranged on the connecting block, and the automatic screw clamping mechanism is used for carrying out automatic clamping treatment on the screws; and the auxiliary screw taking mechanism is arranged at the top of the connecting block, and the auxiliary screw taking mechanism is used for assisting an operator to take out the screws. By means of the overall design of the automatic screw clamping mechanism, the two clamping blocks can be driven to move oppositely, the function of automatically clamping screws is achieved, the problem that manual adjustment clamping efficiency is low is solved, manual adjustment operation does not need to be conducted close to the screws, the problem that the limbs of a patient are touched by mistake, and the patient feels uncomfortable is solved, and the labor intensity of the patient is lowered. And meanwhile, the anti-skid lines can be detached and replaced so as to be suitable for screws of different sizes, and through the design of the auxiliary screw taking mechanism, an operator can be assisted in taking out the screws in a rotating or direct pulling-out mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to a nail extractor technical field, specifically, relate to a nail extractor. BACKGROUND

[0002] The method commonly used in treating fracture is to implement internal fixation operation, that is, after the fracture part is reset, the reset skeleton is connected by the bone fracture plate and screw made of metal material, and the nail extractor is used in the process of taking out the screw.

[0003] The nail extractor needs to be connected to the screw by the clamping structure in the process of use, and then the screw is taken out, the traditional nail extractor does not have the automatic clamping function, and the operator needs to manually adjust during clamping, the patient's limbs are easily touched by mistake during adjustment, the patient is uncomfortable, and meanwhile, the clamping efficiency of manual adjustment is low. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a nail extractor, and solves the problems of manual adjustment for clamping in the prior art, which easily harms the patient and has low efficiency.

[0005] The utility model provides the following technical scheme: a nail extractor, comprising:

[0006] A connecting block;

[0007] An automatic nail clamping mechanism is arranged on the connecting block, and is used for automatically clamping the screw.

[0008] An auxiliary nail taking mechanism is arranged on the top of the connecting block, and is used for assisting the operator to take out the screw.

[0009] As a preferred embodiment of the above technical scheme, the automatic nail clamping mechanism comprises a first reference block and a second reference block, the first reference block is fixedly installed on the bottom of the connecting block close to the left side, the second reference block is fixedly installed on the bottom of the connecting block close to the right side, a limiting rod is fixedly installed between the adjacent sides of the first reference block and the second reference block, and a bidirectional screw rod is rotatably connected between the adjacent sides of the first reference block and the second reference block.

[0010] Through the above technical scheme, the symmetrical sliding blocks can move towards each other or move in the opposite direction through the design of the bidirectional screw rod, so that the automatic clamping screw function can be conveniently implemented.

[0011] As a preferred embodiment of the above technical scheme, the side surface of the first reference block is fixedly installed with a motor, the output shaft of the motor is fixedly connected with the end portion of the bidirectional screw rod, the outer wall of the limiting rod is slidably connected with symmetrical sliding blocks, and the inner wall of the symmetrical sliding blocks is threadedly connected with the outer wall of the bidirectional screw rod.

[0012] Through the technical scheme, the bidirectional screw rod is driven by the motor to work automatically, and the function of automatically clamping the screw is realized.

[0013] As a preferred technical scheme, the bottom of the symmetric sliding block is fixedly installed with a lower extension arm, the bottom of the lower extension arm is fixedly installed with a frame-shaped block, the outer wall of the frame-shaped block is threadedly connected with a fixing bolt, the inner cavity of the frame-shaped block is movably inserted with a movable block, the threaded end of the fixing bolt is movably connected with the outer wall of the movable block, the end of the movable block is fixedly installed with a clamping block, and the inner wall of the clamping block is provided with anti-skid lines.

[0014] Through the technical scheme, the frame-shaped block, the fixing bolt and the movable block are designed, so that users can replace clamping blocks of different specifications.

[0015] As a preferred technical scheme, the automatic screw clamping mechanism further comprises a battery box and a control button, the battery box is fixedly installed at the bottom of the connecting block, and the control button is fixedly installed on the side of the connecting block.

[0016] Through the technical scheme, the battery box and the control button are designed, so that the motor is used conveniently.

[0017] As a preferred technical scheme, the auxiliary screw taking mechanism comprises a handle, and the end of the handle is fixedly installed with a middle block.

[0018] Through the technical scheme, the handle is designed, so that the structure is fixed by an operator, and the operator can vertically exert force.

[0019] As a preferred technical scheme, the inner wall of the middle block is threadedly connected with a threaded shaft, the bottom of the threaded shaft is fixedly connected with the top of the connecting block, and the outer wall of the threaded shaft close to the top is fixedly installed with a rotating block.

[0020] Through the technical scheme, the middle block and the threaded shaft are designed, so that the clamped screw can be rotated and pulled out, and the safety of taking the screw is improved.

[0021] Compared with the prior art, the utility model has the advantages of:

[0022] The utility model discloses a whole's design through automatic clamping mechanism, can drive two clamping blocks to move towards each other, realize the function of automatic clamping to screw, avoid the problem that manual adjustment clamping efficiency is lower, and do not need to be close to the screw place and carry out the operation of manual adjustment, avoid the problem that the patient is not comfortable easily caused by the mistake of touching the patient's limbs, and the anti -skid line can be dismantled and replaced simultaneously to be applicable to the screw of different size, and through the design of the auxiliary nail taking mechanism, the operator can take out the screw by rotating or directly pulling out, and the practicability of the structure is increased. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the perspective drawing of the utility model;

[0024] Figure 2 It is the structure schematic view of the first reference block and the second reference block of the utility model;

[0025] Figure 3 It is the structure schematic view of the frame block and the movable block of the utility model;

[0026] Figure 4 It is the structure schematic view of the battery box of the utility model;

[0027] Figure 5 It is the structure schematic view of the auxiliary nail taking mechanism of the utility model.

[0028] In the drawing: 1, connecting block;2, automatic clamping mechanism;21, first reference block;22, second reference block;23, limit rod;24, bidirectional screw;25, motor;26, symmetrical slider;27, lower arm;28, frame block;29, fixed peg;291, movable block;292, clamping block;293, anti -skid line;294, battery box;295, control button;3, auxiliary nail taking mechanism;31, handle;32, mid -block;33, threaded shaft;34, rotating block. DETAILED DESCRIPTION

[0029] The technical scheme in the utility model embodiment will be described clearly and completely in conjunction with the drawings of the utility model embodiment.

[0030] As Figures 1-5 The utility model provides a kind of nail extractor, comprising:

[0031] Connecting block 1;

[0032] Automatic clamping mechanism 2, automatic clamping mechanism 2 is set on connecting block 1, and automatic clamping mechanism 2 is used to automatically clamp the screw and handle;

[0033] The auxiliary screw taking mechanism 3 is arranged on the top of the connecting block 1, and is used for assisting the operator to take out the screw.

[0034] As an embodiment in the embodiment, as shown in the figure, Figure 2 The automatic screw clamping mechanism 2 comprises a first reference block 21 and a second reference block 22. The first reference block 21 is fixedly installed on the bottom of the connecting block 1 near the left side, and the second reference block 22 is fixedly installed on the bottom of the connecting block 1 near the right side. A limiting rod 23 is fixedly installed between the adjacent sides of the first reference block 21 and the second reference block 22. A bidirectional screw rod 24 is rotationally connected between the adjacent sides of the first reference block 21 and the second reference block 22. A motor 25 is fixedly installed on the side surface of the first reference block 21. The output shaft of the motor 25 is fixedly connected with the end portion of the bidirectional screw rod 24. Symmetrical sliding blocks 26 are slidingly connected on the outer wall of the limiting rod 23. The inner wall of the symmetrical sliding blocks 26 is threadedly connected with the outer wall of the bidirectional screw rod 24. The motor 25 is controlled to work, so as to drive the bidirectional screw rod 24 to rotate. The bidirectional screw rod 24 can convert the rotary motion into linear motion, so as to drive the two symmetrical sliding blocks 26 to slide towards each other or in the opposite direction on the outer wall of the limiting rod 23. In the process of sliding towards each other, the two clamping blocks 292 are driven to move towards each other by the transmission of the lower extension arm 27, so as to realize the function of automatically clamping the screw, improve the efficiency of screw clamping, and improve the efficiency of taking out the screw. In addition, the operation of manually adjusting near the screw is not needed, so as to avoid the problem that the patient is easily caused to be uncomfortable due to accidental touch of the patient's limbs, and the safety is improved.

[0035] As an embodiment in the embodiment, as shown in the figure, Figure 3 , Figure 4As shown, the bottom of the symmetrical slider 26 is fixedly installed with a lower extension arm 27, the bottom of the lower extension arm 27 is fixedly installed with a frame-shaped block 28, the outer wall of the frame-shaped block 28 is threadedly connected with a fixing bolt 29, the inner cavity of the frame-shaped block 28 is movably inserted with a movable block 291, the threaded end of the fixing bolt 29 is movably connected with the outer wall of the movable block 291, the end of the movable block 291 is fixedly installed with a clamping block 292, the inner wall of the clamping block 292 is provided with anti-skid lines 293, the automatic clamping nail mechanism 2 further comprises a battery box 294 and a control button 295, the battery box 294 is fixedly installed at the bottom of the connecting block 1, and the control button 295 is fixedly installed on the side of the connecting block 1. Different clamping blocks 292 are produced according to the size of the screw in advance, the fixing bolt 29 is loosened, and then the movable block 291 can be pulled out of the inner cavity of the frame-shaped block 28, so as to realize the function of disassembling the clamping block 292. Insert the movable block 291 with another clamping block 292 into the inner cavity of the frame-shaped block 28, and then tighten the fixing bolt 29 so that the threaded end is attached to the movable block 291, so as to realize the function of replacing different specifications of clamping blocks 292 to adapt to different specifications of screws. The anti-skid lines 293 are arc protrusions on the inner wall of the clamping block 292. Through the design of the anti-skid lines 293, the stability of clamping is improved. The battery box 294 has a battery inside, which is used to power the motor 25. The number of control buttons 295 is two, and the two control buttons 295 control the forward rotation and reverse rotation of the motor 25 respectively, so that the two clamping blocks 292 move towards each other or move in the opposite direction.

[0036] As an embodiment in this embodiment, as shown, Figure 5 The auxiliary nail taking mechanism 3 comprises a handle 31, the end of the handle 31 is fixedly installed with a middle block 32, the inner wall of the middle block 32 is threadedly connected with a threaded shaft 33, the bottom of the threaded shaft 33 is fixedly connected with the top of the connecting block 1, the outer wall close to the top of the threaded shaft 33 is fixedly installed with a rotating block 34. After the screw is clamped, the operator tightly holds the handle 31. If the screw has threads, rotate the threaded shaft 33 through the rotating block 34 to rotate and take out the screw. If the screw has no threads, force vertically from the handle 31 to pull out the screw, which is convenient for taking out the screw.

[0037] Working principle: replace the clamping block 292 suitable for the size of the screw in advance, then move the structure so that the screw is between the two clamping blocks 292, then control the motor 25 to work from one of the control buttons 295, drive the bidirectional screw rod 24 to rotate, so that the clamping blocks 292 slide towards each other, realize the function of automatically clamping the screw, then rotate the threaded shaft 33 through the rotating block 34 according to whether the screw has threads, rotate and take out the screw, or apply force vertically from the handle 31 to pull out the screw. After the screw is taken out, control the motor 25 to work from the other control button 295 to release the screw.

[0038] The above examples are only used to illustrate the technical solutions of the present application, and are not limiting.

Claims

1. A nail extractor, characterized in that Include: The connecting block (1); Automatic nail clamping mechanism (2), the automatic nail clamping mechanism (2) is arranged on the connecting block (1), and the automatic nail clamping mechanism (2) is used for automatic clamping treatment of screw; Auxiliary nail taking mechanism (3), the auxiliary nail taking mechanism (3) is arranged on the top of the connecting block (1), and the auxiliary nail taking mechanism (3) is used for assisting the operator to take out the screw.

2. The nail extractor of claim 1, wherein: The automatic nail clamping mechanism (2) includes a reference block (21) and a reference block (22), the reference block (21) is fixedly installed on the bottom of the connecting block (1) near the left side, the reference block (22) is fixedly installed on the bottom of the connecting block (1) near the right side, the reference block (21), the reference block (22) is fixedly installed between the adjacent side of the reference block (21), the reference block (22) is rotatably connected with the bidirectional screw rod (24).

3. A nail extractor according to claim 2, wherein: The side surface of the reference block (21) is fixedly installed with motor (25), the output shaft of the motor (25) is fixedly connected with the end of the bidirectional screw rod (24), the outer wall of the limiting rod (23) is slidably connected with the symmetric sliding block (26), and the inner wall of the symmetric sliding block (26) is threadedly connected with the outer wall of the bidirectional screw rod (24).

4. The nail extractor of claim 3, wherein: The bottom of the symmetric sliding block (26) is fixedly installed with a lower arm (27), the bottom of the lower arm (27) is fixedly installed with a frame block (28), the outer wall of the frame block (28) is threadedly connected with a fixed bolt (29), the inner cavity of the frame block (28) is movably inserted with a movable block (291), the threaded end of the fixed bolt (29) is movably connected with the outer wall of the movable block (291), and the end of the movable block (291) is fixedly installed with a clamping block (292). The inner wall of the clamping block (292) is provided with anti-skid lines (293).

5. The nail extractor of claim 2, wherein: The automatic nail clamping mechanism (2) further includes a battery box (294) and a control button (295), the battery box (294) is fixedly installed on the bottom of the connecting block (1), and the control button (295) is fixedly installed on the side surface of the connecting block (1).

6. The nail extractor of claim 1, wherein: The auxiliary nail taking mechanism (3) includes a handle (31), and the end of the handle (31) is fixedly installed with a middle block (32).

7. A nail extractor according to claim 6, wherein: The inner wall of the middle block (32) is threadedly connected with a threaded shaft (33), the bottom of the threaded shaft (33) is fixedly connected with the top of the connecting block (1), and the outer wall of the threaded shaft (33) near the top is fixedly installed with a rotating block (34).

Images