CN216724717U

CN216724717U - Screwdriver lengthening device

Info

Publication number: CN216724717U
Application number: CN202122512281.7U
Authority: CN
Inventors: 付宝华; 高胜一; 国华
Original assignee: Taian Central Hospital Branch; Taian First People's Hospital
Current assignee: Taian Central Hospital Branch; Taian First People's Hospital
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-06-14
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses a screwdriver lengthening device which comprises a clamping block, a fixing cylinder and a supporting assembly, wherein a notch is formed in the clamping block, the notch penetrates through two ends and the bottom wall of the clamping block, the fixing cylinder is arranged on the top wall of the clamping block, fastening bolts I are arranged on the clamping block and the fixing cylinder, and the supporting assembly is arranged on the fixing cylinder. The utility model belongs to the technical field of medical instruments, and particularly relates to a screwdriver lengthening device.

Description

Screwdriver lengthening device

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a screwdriver lengthening device.

Background

Orthopedic extraction internal fixation is a very routine operation, making screw extraction very difficult for the following reasons: 1, too long. 2, the titanium alloy is applied, and the fusion of the alloy calcaneus tissues is very firm due to good tissue compatibility. 3, the external fixation is loosened, so that the screw is bent. And 4, combining the above factors. Due to the reasons, the wrist torsion required for taking out the screw is far greater than that in the conventional situation, and if the wrist strength is insufficient and the operation is repeated, the screw opening can be damaged, a thread is formed, and finally the taking-out operation fails.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a rack type distribution box convenient for wiring.

In order to realize the functions, the technical scheme adopted by the utility model is as follows: the screwdriver lengthening device comprises a clamping block, a fixed cylinder and a supporting assembly, wherein a notch is formed in the clamping block, penetrates through two ends and the bottom wall of the clamping block, the fixed cylinder is arranged on the top wall of the clamping block, fastening bolts I are arranged on the clamping block and the fixed cylinder, and the supporting assembly is arranged on the fixed cylinder; the supporting assembly comprises a first connecting rod, a second connecting rod, a rotating shaft, a sleeve, a bidirectional screw and a screw pair, wherein the bottom end of the first connecting rod is rotatably arranged on the side wall of the fixed cylinder, the first connecting rod is symmetrically arranged at the vertical center line of the fixed cylinder in two groups, the bottom end of the second connecting rod is rotatably arranged at the top end of the first connecting rod, the side wall of the sleeve is hinged to the top end of the second connecting rod, the rotating shaft rotatably penetrates through the joint of the first connecting rod and the second connecting rod, two ends of the rotating shaft extend out, the second connecting rod and the rotating shaft are arranged corresponding to the first connecting rod, the screw pair is rotatably arranged at the end part of the rotating shaft and is provided with two groups corresponding to the rotating shaft, the bidirectional screw rotatably penetrates through the screw pair in two ends, the two groups of screw pairs are oppositely arranged, a handle of the T-shaped screwdriver needing to be lengthened penetrates into the notch, a fastening bolt I on the rotating fixture block penetrates into the notch, the T-shaped screwdriver needing to be lengthened is fixed, the T-shaped screwdriver needing to be lengthened, the T-shaped screwdriver is prevented from sliding out, the other T-shaped screwdriver is used for lengthening and penetrates through the bottom of the sleeve and is arranged in the fixed cylinder, the first fastening bolt on the rotary fixing cylinder fixes the lengthened T-shaped screwdriver, and the position of the sleeve on the lengthened T-shaped screwdriver can be adjusted by rotating the bidirectional screw rod, so that the center of gravity position of the support can be changed, and the phenomenon that a sliding wire is loosened due to the fact that the direction of force of the lengthened T-shaped screwdriver is inclined when the T-shaped screwdriver is used for a long time is avoided.

Further, the side wall of the sleeve is provided with a second fastening bolt.

Furthermore, the cross section of the notch is arranged in a ball-like structure.

Further, the sleeve and the fixed cylinder have the same inner diameter and the central axis is on the same vertical line.

Preferably, the end part of the bidirectional screw rod is provided with a hand wheel.

The utility model adopts the structure to obtain the following beneficial effects: the screwdriver lengthening device provided by the utility model is simple to operate, compact in mechanism and reasonable in design, the length of the screwdriver can be lengthened through the fixed cylinder and the clamping block, the handle of the lengthening part can be held by both hands at the moment, so that the torsion can be increased, and the gravity center position of the screwdriver for lengthening is stabilized through the supporting component, so that the phenomenon that the screwdriver applies force to the lengthening part and damages the fixed cylinder is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of a screwdriver extender according to the present invention;

FIG. 2 is a side view of a cartridge of the present invention;

FIG. 3 is a view showing a state of use of the screwdriver lengthening device according to the present invention.

The device comprises a clamping block 1, a clamping block 2, a fixing barrel 3, a supporting component 4, a notch 5, a fastening bolt I, a fastening bolt 6, a connecting rod I, a connecting rod II, a rotating shaft 8, a sleeve 9, a bidirectional screw rod 10, a bidirectional screw rod 11, a screw rod pair 12, a fastening bolt II, a fastening bolt 13, a hand wheel 14, a T-shaped screwdriver 15 and a lengthening screwdriver.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-3, the screwdriver lengthening device provided by the utility model comprises a fixture block 1, a fixed cylinder 2 and a supporting component 3, wherein a notch 4 is formed in the fixture block 1, the notch 4 penetrates through two ends and the bottom wall of the fixture block 1, the cross section of the notch 4 is in a ball-like structure, the fixed cylinder 2 is arranged on the top wall of the fixture block 1, fastening bolts one 5 are respectively arranged on the fixture block 1 and the fixed cylinder 2, and the supporting component 3 is arranged on the fixed cylinder 2; the supporting component 3 comprises a first connecting rod 6, a second connecting rod 7, a rotating shaft 8, a sleeve 9, a bidirectional screw rod 10 and a screw rod pair 11, the bottom end of the first connecting rod 6 is rotatably arranged on the side wall of the fixed cylinder 2, the first connecting rod 6 is symmetrically provided with two groups by the vertical central line of the fixed cylinder 2, the bottom end of the second connecting rod 7 is rotatably arranged at the top end of the first connecting rod 6, the side wall of the sleeve 9 is hinged at the top end of the second connecting rod 7, the side wall of the sleeve 9 is provided with a fastening bolt two 12, the sleeve 9 and the fixed cylinder 2 have the same inner diameter and the central axis is on the same vertical line, the rotating shaft 8 rotatably penetrates through the joint of the first connecting rod 6 and the second connecting rod 7 and two ends of the connecting rod 7 and the rotating shaft 8 are extended out, the screw rod pair 11 is rotatably arranged at the end of the rotating shaft 8, the screw rod pair 11 is provided with two groups of corresponding to the rotating shaft 8, and the bidirectional screw rod 10 rotatably penetrates through the screw rod pair 11 and two ends of the screw rod are extended out, the end part of the bidirectional screw 10 is provided with a hand wheel 13, and the two screw pairs 11 are arranged oppositely.

When the screw is taken out and the torque force is too large (when the wrist can not be screwed out), the handle of the T-shaped screwdriver 14 needing to be lengthened penetrates into the notch 4, the fastening bolt I5 on the fixture block 1 is rotated after the handle penetrates into the notch, the T-shaped screwdriver 14 needing to be lengthened is fixed to prevent slipping out, the other T-shaped screwdriver 15 used for lengthening penetrates through the sleeve 9 at the bottom and is placed in the fixed cylinder 2, the fastening bolt I5 on the fixed cylinder 2 is rotated to fix the screwdriver 15 used for lengthening, the handle of the lengthening part can be held by two hands at the moment, the torque force is increased by using the strength of the whole body, the screw can be easily taken out, and by rotating the bidirectional screw rod 10, the position of the sleeve 9 on the extension driver 15 can be adjusted, so that the gravity center position of the extension driver 15 can be maintained, and the phenomenon that when the extension driver is used for a long time, when the direction of force is inclined by the screwdriver 15 for lengthening, the fastening bolt 5 on the fixed cylinder 2 generates the phenomenon of thread slipping and loosening.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. Screwdriver extension ware, its characterized in that: the fixture comprises a fixture block, a fixed cylinder and a supporting assembly, wherein an opening groove is formed in the fixture block, penetrates through two ends and a bottom wall of the fixture block, the fixed cylinder is arranged on a top wall of the fixture block, fastening bolts I are arranged on the fixture block and the fixed cylinder, and the supporting assembly is arranged on the fixed cylinder; the supporting assembly comprises a first connecting rod, a second connecting rod, a rotating shaft, a sleeve, a bidirectional screw and a screw pair, the bottom end of the first connecting rod is rotatably arranged on the side wall of the fixed cylinder, the first connecting rod is symmetrically arranged with the vertical center line of the fixed cylinder in two groups, the bottom end of the second connecting rod is rotatably arranged on the top end of the first connecting rod, the side wall of the sleeve is hinged to the top end of the second connecting rod, the rotating shaft penetrates through the first connecting rod and the second connecting rod in a rotating mode, the two connecting rods and the rotating shaft correspond to the first connecting rod in a corresponding mode, the end portion of the rotating shaft is rotatably arranged on the screw pair, the screw pair is provided with two groups and corresponds to the rotating shaft in a corresponding mode, the bidirectional screw is rotatably penetrates through the screw pair, and the two ends of the screw pair are extended out, and the screw pair is arranged in a relative mode.

2. The driver extender of claim 1 wherein: and a second fastening bolt is arranged on the side wall of the sleeve.

3. The driver extender of claim 2 wherein: the cross section of the notch is arranged in a ball-like structure.

4. The driver extender of claim 3 wherein: the sleeve and the fixed cylinder have the same inner diameter and the central shaft is on the same vertical line.

5. The driver extender of claim 4 wherein: and a hand wheel is arranged at the end part of the bidirectional screw rod.