CN112890943B - Orthopedics nail taking equipment capable of quickly taking nail and preventing broken nail - Google Patents

Abstract

The invention relates to the technical field of orthopedic equipment, and discloses orthopedic nail taking equipment capable of quickly taking nails and preventing nails from being broken, which comprises a rack, wherein a driving wheel is fixedly connected inside the rack, a lifting rod is fixedly connected to the inner top of the rack, a tension spring is fixedly connected to one side, close to the axle center of a rotating wheel, of a balancing weight, a loop bar is fixedly connected to the inner top of the rack, an ejector block is slidably connected inside a sliding plate, a reset spring is sleeved outside the pressing bar, a transmission rod is movably connected to the bottom of the pressing bar, and a cutting blade is movably connected to the bottom of the sliding plate. This can get orthopedics of nail breakage prevention nail and get nail equipment fast, through the lifter decline drive runner decline, the runner drives the clamping bar decline, when the runner descends to a locating position, the action wheel drives the runner and rotates, and the runner drives the balancing weight and slides, and the balancing weight drives the clamping bar and removes, and the rethread clamping bar uses with the cooperation of drive wheel to the effect that can prevent the nail breakage has been reached.

Description

An orthopedic nail removal device capable of quickly removing nails and preventing nail breakage

technical field

The invention relates to the technical field of orthopedic equipment, in particular to an orthopedic nail-removing device capable of quickly removing and preventing nails from breaking.

Background technique

With the changes of the times and society, the spectrum of orthopedic injuries has changed significantly. For example, bone and joint tuberculosis, osteomyelitis, polio and other diseases have decreased significantly, while traumas caused by traffic accidents have increased significantly, and most traffic accidents will cause fractures. , Clinically, screws and plates are usually used for internal fixation of the fracture site.

When the fractured person is healed, the screw and the steel plate need to be taken out. When the existing orthopedic equipment takes out the nail, the drill bit is used to grind the nut and take it out, and then the steel plate and the screw are taken out. Applying pressure to the injured site may cause re-injury at the injured site. At the same time, the screw is prone to breakage when removing the screw. When the broken screw is removed, the bone tissue will be excessively damaged, increasing the risk of re-fracture and infection.

Contents of the invention

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the present invention provides an orthopedic nail removal device that can quickly remove the nail and prevent the nail from breaking. In the nail hole, it is easy to use and other advantages, which solves the problem that when the nut is polished with a drill bit, it will exert pressure on the injured position, which may cause the injured position to be injured again, and the screw is prone to breakage when the screw is screwed, and excessive bone tissue defects will be caused when the broken nail is removed. question.

(2) Technical solutions

In order to achieve the above-mentioned purpose of preventing nail breakage, not exerting pressure on the injured position when taking out the nut, preventing iron filings from falling into the nail hole, and being easy to use, the present invention provides the following technical proposal: The orthopedic nail removal equipment for nails includes a frame, the inside of the frame is fixedly connected with a driving wheel, the inner top of the frame is fixedly connected with a lifting rod, and the bottom of the lifting rod is fixedly connected with a running wheel. The bottom of the runner is fixedly connected with a transmission wheel, the bottom of the runner is slidably connected with a clamp bar, and the inside of the runner is slidably connected with a counterweight, and the side of the counterweight close to the axis of the runner is fixedly connected There is a tension spring, the inner top of the frame is fixedly connected with a sleeve rod, the bottom of the sleeve rod is threadedly connected with a screw rod, the bottom of the screw rod is fixedly connected with a rotating shaft, and the bottom of the rotating shaft is fixedly connected with a buffer spring, so The bottom of the buffer spring is fixedly connected with a cutting cover, the inside of the cutting cover is slidably connected with a driving block, and the side of the driving block away from the rotating shaft is movably connected with a slider, and the side of the sliding block away from the driving block is movably connected There is a connecting rod, the bottom of the connecting rod is movably connected with a push rod, the inner wall of the cutting hood is fixedly connected with a supporting spring, and the side of the supporting spring away from the inner wall of the cutting hood is fixedly connected with a slide plate, and the inside of the sliding plate slides Connected with a top block, the inside of the slide plate and the bottom of the top block are slidably connected with a pressure rod, the outside of the pressure rod is sleeved with a return spring, and the bottom of the pressure rod is movably connected with a transmission rod. There is a cutting piece at the bottom articulation.

Preferably, both the top and the bottom of the driving wheel are provided with internal tooth grooves, which are used to drive the rotating wheel and the rotating shaft to rotate.

Preferably, the counterweight is connected to the clamp bar through a pull cord, so that the counterweight can drive the clamp bar to move.

Preferably, gear teeth are fixedly connected to the outer side of the rotating shaft, and used in conjunction with the tooth grooves.

Preferably, a block is fixedly connected to the outside of the rotating shaft, so that the rotating shaft can drive the cutting cover to rotate and at the same time move relative to the cutting cover.

Preferably, a suction groove is provided inside the rotating shaft to facilitate the removal of screws.

Preferably, a bayonet opening is provided on the top of the cutting cover, which is used in conjunction with a bayonet block.

Preferably, the sliding plate is slidably connected to the inner top of the cutting hood, so as to ensure that the sliding plate can move stably without affecting the use of the cutting blade.

(3) Beneficial effects

Compared with the prior art, the present invention provides an orthopedic nail removal device that can quickly remove the nail and prevent the nail from breaking, and has the following beneficial effects:

1. The orthopedic nail removal equipment that can quickly remove nails and prevent nails from breaking, drives the runner down through the lowering of the lifting rod, and the runner drives the clamping rod down. When the runner drops to a certain position, the driving wheel drives the runner to rotate, and the runner The counterweight is driven to slide, and the counterweight drives the clamping rod to move, and then the clamping rod and the transmission wheel are used together to achieve the effect of preventing nail breakage.

2. The orthopedic nail removal equipment that can quickly remove nails and prevent nails from breaking, drives the shaft to rotate through the rotation of the driving wheel, and the shaft drives the screw to rotate. The block drives the slider to slide, the slider drives the connecting rod to swing, the connecting rod drives the ejector rod to move, the ejector rod drives the ejector block to move, the ejector block drives the pressure rod to descend, the pressure rod drives the transmission rod to swing, the transmission rod drives the cutting piece to swing, and at the same time the shaft The cutting cover is driven to rotate, and the cutting cover drives the slide plate to rotate, and then the slide plate is used in conjunction with the cutting piece, so that the effect of not exerting pressure on the injured position when taking the nut is achieved.

Description of drawings

Fig. 1 is the overall schematic diagram of the structure of the present invention;

Fig. 2 is a schematic cross-sectional top view of the runner part of the structure of the present invention;

Fig. 3 is a partial schematic view of the structure cutting cover of the present invention;

Fig. 4 is a partial schematic view of the push rod of the structure of the present invention;

Fig. 5 is a partial schematic diagram of the structural cutting sheet of the present invention.

In the figure: 1, frame; 2, driving wheel; 3, lifting rod; 4, runner; 5, driving wheel; 6, clamping rod; 7, counterweight; 8, tension spring; 9, sleeve rod; 10 , screw rod; 11, rotating shaft; 12, buffer spring; 13, cutting cover; 14, driving block; 15, slider; ; 21, pressure rod; 22, return spring; 23, transmission rod; 24, cutting piece.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figure 1-5, an orthopedic nail removal device that can quickly remove nails and prevent nails from breaking, including a frame 1. The drive wheel 2 is fixedly connected inside the frame 1. The material of the drive wheel 2 is 40Cr, which has enough Intensity, the top and bottom of the driving wheel 2 are provided with internal tooth grooves, which are used to drive the runner 4 and the rotating shaft 11 to rotate, the inner top of the frame 1 is fixedly connected with the lifting rod 3, and the bottom of the lifting rod 3 is fixedly connected with the runner 4. The bottom of the runner 4 is fixedly connected with the transmission wheel 5, the bottom of the runner 4 is slidably connected with the clamp rod 6, the bottom of the clamp rod 6 is fixedly connected with the lifting wheel, and the inside of the runner 4 is slidably connected with the counterweight 7, The counterweight 7 is connected with the clamp bar 6 by a stay rope, so that the counterweight 7 can drive the clamp bar 6 to move, and the side of the counterweight 7 near the axis of the runner 4 is fixedly connected with a tension spring 8, and the frame 1 The inner top is fixedly connected with a sleeve rod 9, the bottom of the sleeve rod 9 is threadedly connected with a screw rod 10, the bottom of the screw rod 10 is fixedly connected with a rotating shaft 11, and the outer side of the rotating shaft 11 is fixedly connected with gear teeth, which are used in conjunction with the tooth groove. Fixedly connected with a block, so that the rotating shaft 11 can drive the cutting cover 13 to rotate and move relative to the cutting cover 13. The inside of the rotating shaft 11 is provided with a suction groove, which is convenient for taking out the screw. The bottom of the rotating shaft 11 is fixedly connected with a buffer spring 12, the buffer spring The bottom of 12 is fixedly connected with cutting cover 13, and the top of cutting cover 13 is provided with bayonet, and is used in conjunction with block, and the inside of cutting cover 13 is slidably connected with driving block 14, and the side of driving block 14 away from rotating shaft 11 is movably connected with Slide block 15, slide block 15 is movably connected with connecting rod 16 away from the side of driving block 14, and the bottom of connecting rod 16 is movably connected with ejector rod 17, and the inner wall of cutting cover 13 is fixedly connected with supporting spring 18, and supporting spring 18 is far away from cutting. One side of the inner wall of the cover 13 is fixedly connected with a slide plate 19, and the outside of the slide plate 19 is fixedly connected with a magnetic plate for absorbing iron filings. The slide plate 19 is slidably connected to the inner top of the cutting cover 13 to ensure that the slide plate 19 can move stably without affecting The cutting piece 24 is used, the inside of the slide plate 19 is slidably connected with the top block 20, the inside of the slide plate 19 and the bottom of the top block 20 is slidably connected with the pressure rod 21, the outside of the pressure rod 21 is sleeved with a return spring 22, and the pressure rod 21 Bottom is movably connected with transmission rod 23, and the bottom of slide plate 19 is movably connected with cutting blade 24, and cutting blade 24 is movably connected with transmission rod 23, and transmission rod 23 can drive cutting blade 24 to swing.

Working principle: when the nail needs to be removed, the driving wheel 2 is energized and rotates, the driving wheel 2 rotates to drive the rotating shaft 11 to rotate, the rotating shaft 11 rotates to drive the screw 10 to rotate, the screw 10 descends under the action of the sleeve rod 9, and the descending of the screw 10 drives the rotating shaft 11 to descend The lowering of the rotating shaft 11 drives the cutting cover 13 down, and the lowering of the cutting cover 13 covers the nut. At this time, the rotating shaft 11 is lowered relative to the cutting cover 13, and the lowering of the rotating shaft 11 drives the driving block 14 to slide away from the rotating shaft 11, and the sliding of the rotating shaft 11 drives the slider 15 slides away from the rotating shaft 11, the slider 15 drives the connecting rod 16 to swing, and the connecting rod 16 swings to drive the push rod 17 to slide in the direction of the slide plate 19, the push rod 17 pushes the top block 20 to slide in the direction of the slide plate 19, and the slide plate 19 drives the pressure rod 21 Down, the pressure rod 21 descends to drive the transmission rod 23 to swing, the transmission rod 23 swings to drive the cutting piece 24 to swing to the horizontal position, the rotating shaft 11 rotates and drives the cutting cover 13 to rotate, the cutting cover 13 rotates to drive the slide plate 19 to rotate, and the slide plate 19 rotates to drive the cutting The blade 24 rotates, and the cutting blade 24 rotates and cuts the nut. At this time, the push rod 17 drives the slide plate 19 to slide toward the direction of the rotating shaft 11, and the slide plate 19 drives the cutting blade 24 to move toward the direction of the rotating shaft 11, so that the cutting blade 24 can slowly cut the nut. , and the iron filings of cutting can not fly out cutting cover 13, and the magnetic plate of slide plate 19 outsides is collected iron filings simultaneously, and nut also can be sucked on the magnetic plate of slide plate 19 outsides after nut is cut, at this moment Pick up the equipment and remove the iron filings on the slide plate 19. At this time, the cylinder drives the elevating rod 3 to descend, and the elevating rod 3 descends to drive the runner 4 to descend. At a certain position, the runner 4 meshes with the tooth groove at the bottom of the driving wheel 2, and the driving wheel 2 drives the runner 4 to rotate, and the runner 4 gives the counterweight 7 centrifugal force, and the counterweight 7 slides away from the axis of the runner 4. The weight 7 drives the clamping rod 6 to slide towards the axis of the runner 4 through the pull rope. When the clamping rod 6 moves to the position of the transmission wheel 5, the transmission wheel 5 meshes with the clamping rod 6. At the same time, the lifting wheel at the bottom of the clamping rod 6 and the screw At this time, the clamp rod 6 rotates while following the rotation of the runner 4. When the clamp rod 6 rotates with the runner 4, the screw is loosened, and the lifting wheel drives the screw to rise, so that the screw will not be easily broken. During block 14 positions, screw drives driving block 14 to swing, and screw enters in the suction groove inside rotating shaft 11, is fixed by suction groove, is convenient to take nail.

To sum up, this orthopedic nail removal device that can quickly remove nails and prevent nails from breaking, drives the runner 4 down through the lowering of the lifting rod 3, and the runner 4 drives the clamping rod 6 down. When the runner 4 drops to a certain position, it automatically The wheel 2 drives the runner 4 to rotate, the runner 4 drives the counterweight 7 to slide, the counterweight 7 drives the clamp rod 6 to move, and then the clamp rod 6 and the transmission wheel 5 are used together to achieve the effect of preventing nail breakage . The orthopedic nail removal device capable of quickly removing nails and preventing nail breakage drives the rotating shaft 11 to rotate through the rotation of the driving wheel 2, the rotating shaft 11 drives the screw rod 10 to rotate, the screw rod 10 descends under the action of the sleeve rod 9, the screw rod 10 drives the rotating shaft 11 to descend, and the rotating shaft 11 drives the driving block 14 to slide, the driving block 14 drives the slider 15 to slide, the slider 15 drives the connecting rod 16 to swing, the connecting rod 16 drives the ejector rod 17 to move, the ejector rod 17 drives the top block 20 to move, and the top block 20 drives the pressure rod 21 Descending, the pressure rod 21 drives the transmission rod 23 to swing, and the transmission rod 23 drives the cutting piece 24 to swing, and the rotating shaft 11 drives the cutting cover 13 to rotate, and the cutting cover 13 drives the slide plate 19 to rotate, and then the slide plate 19 and the cutting piece 24 are used together, thereby It achieves the effect that no pressure will be exerted on the injured position when taking out the nut, and the application range is wider.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (1)

1. An orthopedic nail removal device capable of quickly removing nails and preventing nail breakage, comprising a frame (1), characterized in that: the inside of the frame (1) is fixedly connected with a driving wheel (2), and the frame The inner top of (1) is fixedly connected with a lifting rod (3), the bottom of the lifting rod (3) is fixedly connected with a runner (4), and the bottom of the runner (4) is fixedly connected with a transmission wheel (5) , the bottom of the runner (4) is slidably connected with a clamp bar (6), and the inside of the runner (4) is slidably connected with a counterweight (7), and the counterweight (7) is close to the runner ( 4) One side of the axis is fixedly connected with a tension spring (8), the inner top of the frame (1) is fixedly connected with a sleeve rod (9), and the bottom of the sleeve rod (9) is threadedly connected with a screw rod (10 ), the bottom of the screw (10) is fixedly connected with a rotating shaft (11), the bottom of the rotating shaft (11) is fixedly connected with a buffer spring (12), and the bottom of the buffer spring (12) is fixedly connected with a cutting cover ( 13), the inside of the cutting cover (13) is slidably connected with a drive block (14), and the side of the drive block (14) away from the rotating shaft (11) is movably connected with a slide block (15), and the slide block ( 15) A connecting rod (16) is movably connected to the side away from the drive block (14), the bottom of the connecting rod (16) is movably connected with a push rod (17), and the inner wall of the cutting cover (13) is fixedly connected with a Support spring (18), described support spring (18) is fixedly connected with slide plate (19) on one side away from cutting cover (13) inner wall, and the inside of described slide plate (19) is slidably connected with top piece (20), and described The inside of the slide plate (19) is slidingly connected with a depression bar (21) at the bottom of the top block (20), and the outside of the depression lever (21) is sleeved with a back-moving spring (22). The bottom is movably connected with a drive rod (23), the bottom of the slide plate (19) is movably connected with a cutting piece (24), the top and bottom of the driving wheel (2) are provided with internal tooth grooves, and the counterweight (7) is connected with clamp rod (6) by stay cord, and the outer side of described rotating shaft (11) is fixedly connected with gear teeth, and the outer side of described rotating shaft (11) is fixedly connected with block, and the outer side of described rotating shaft (11) is fixedly connected with clamping block, and the outer side of described rotating shaft (11) A suction groove is provided inside, a bayonet is provided on the top of the cutting cover (13), and the slide plate (19) is slidably connected to the inner top of the cutting cover (13); When it is necessary to take nails, the driving wheel (2) is energized and rotates, and the driving wheel (2) rotates to drive the rotating shaft (11) to rotate, and the rotating shaft (11) rotates to drive the screw rod (10) to rotate, and the screw rod (10) is in the position of the cover rod (9). Down under action, the screw (10) descends to drive the rotating shaft (11) to descend, and the descending of the rotating shaft (11) drives the cutting cover (13) to descend, and the cutting cover (13) descends to cover the nut. At this time, the rotating shaft (11) is opposite to the cutting cover (13) descends, and the rotating shaft (11) descends to drive the driving block (14) to slide away from the rotating shaft (11), and the rotating shaft (11) slides to drive the slider (15) to slide away from the rotating shaft (11), and the sliding block (15) Drive the connecting rod (16) to swing, and the swing of the connecting rod (16) drives the push rod (17) to slide towards the direction of the slide plate (19), and the push rod (17) pushes the top block (20) to slide towards the direction of the slide plate (19), and the slide plate (19) ) drives the pressure rod (21) to descend, the pressure rod (21) descends to drive the transmission rod (23) to swing, the transmission rod (23) swings to drive the cutting piece (24) to swing to the horizontal position, and the rotating shaft (11) drives the cutting cover at the same time (13) rotate, the cutting cover (13) rotates to drive the slide plate (19) to rotate, the slide plate (19) rotates to drive the cutting blade (24) to rotate, the cutting blade (24) rotates the cutting nut, and now the ejector rod (17) drives the slide plate (19) slide towards the direction of the rotating shaft (11), and the slide plate (19) drives the cutting piece (24) to move towards the direction of the rotating shaft (11), so that the cutting piece (24) can slowly cut the nut, and the cut iron filings will not It will fly out of the cutting cover (13), and the magnetic plate on the outside of the slide plate (19) will collect iron filings. After the nut is cut, the nut will also be sucked on the magnetic plate on the outside of the slide plate (19). Start the equipment and remove the iron filings on the slide plate (19). At this time, the cylinder drives the lifting rod (3) down, the lifting rod (3) goes down and the runner (4) goes down, and the runner (4) goes down to drive the clamp rod (6) descending, when the running wheel (4) descends to a certain position, the running wheel (4) meshes with the tooth groove at the bottom of the driving wheel (2), and the driving wheel (2) drives the running wheel (4) to rotate, and the running wheel (4) ) to give the counterweight (7) centrifugal force, the counterweight (7) slides away from the axis of the runner (4), and the counterweight (7) drives the clamp rod (6) toward the axis of the runner (4) through the pull rope Slide in the center direction, when the clamp rod (6) moves to the position of the drive wheel (5), the drive wheel (5) engages with the clamp rod (6), and at the same time the lifting wheel at the bottom of the clamp rod (6) contacts the screw, at this time the clamp The rod (6) rotates on its own while following the rotation of the runner (4). When the clamping rod (6) rotates following the rotation of the runner (4), the screw is loosened. When rising to the driving block (14) position, the screw drives the driving block (14) to swing, and the screw enters the suction groove inside the rotating shaft (11) and is fixed by the suction groove, which is convenient for taking nails.

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