CN211704876U

CN211704876U - Telescopic rod adjusting mechanism

Info

Publication number: CN211704876U
Application number: CN201921961444.6U
Authority: CN
Inventors: 赵亚攀
Original assignee: Hebei Bocchini Medical Instrument Co ltd
Current assignee: Hebei Bocchini Medical Instrument Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-14
Publication date: 2020-10-20
Anticipated expiration: 2029-11-14

Abstract

The utility model relates to a telescopic link adjustment mechanism, including inner tube and outer tube, set up adjustment mechanism on the outer wall of outer tube and inner tube connection tip, adjustment mechanism is including locking female, hasp, compression spring and twist grip, twist grip includes handle structure and long tube structure, and this long tube is structural to set up the through-hole, twist grip's handle structure part cover is established on the jump ring, the compression spring cover is established the long tube structure periphery of twist grip, compression spring's peripheral cover is established the locking is female, twist grip's long tube is structural to set up the through-hole, the through-hole with the shape of hasp suits, the hasp sets up in the through-hole. The utility model provides a telescopic link adjustment mechanism simple structure, convenient to use works as the utility model discloses when being applied to knee joint support draw gear, a user can adjust simultaneously two sets ofly the utility model discloses a length has high-efficient convenient practical function.

Description

Telescopic rod adjusting mechanism

Technical Field

The utility model belongs to the technical field of the telescopic link is adjusted, concretely relates to telescopic link adjustment mechanism.

Background

In clinical medical treatment, tibia fracture and femur fracture are common types, the aim of operation treatment is to recover the lower limb force line, closed reduction is achieved as much as possible, periosteum and soft tissue stripping at the fractured ends of fractures is reduced, blood circulation at the fractured ends of fractures is protected, closed reduction internal fixation of tibia intramedullary nails is often selected, although a knee joint support is fixed in an operation body position at present, the beneficial effects of liberation assistance, body position fixation, convenient disinfection, suitability for patients with different body types and the like are achieved when knee joint operation is performed clinically, when the existing technology is used for adjusting the length of supporting tubes, the length of each supporting tube is adjusted by two hands, simultaneous adjustment of two groups of supporting tubes with the same length is difficult to achieve, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a telescopic link adjustment mechanism, including inner tube and outer tube, the outer pipe box is established the inner tube periphery, set up the jump ring on the outer wall of outer tube and inner tube connection tip, the jump ring is connected with adjustment mechanism, wherein, adjustment mechanism includes the lock mother, hasp, compression spring and twist grip, the twist grip includes handle structure and long tube structure, and this long tube is structural to set up the through-hole, the partial cover of handle structure of twist grip is established on the jump ring, the compression spring cover is established the long tube structure periphery of twist grip, compression spring's peripheral cover is established the lock mother, the structural through-hole that sets up of long tube of twist grip, the through-hole with the shape of hasp suits, the hasp sets up in the through-hole.

Preferably, the locking nut is connected with the rotating handle through the locking buckle. And two end parts of the compression spring are respectively abutted against the rotating handle and the end part of the inverted L-shaped groove of the locking nut.

In any of the above embodiments, preferably, the inner wall of the locking nut is provided with a wedge-shaped groove and an inverted L-shaped groove.

In any of the above solutions, it is preferable that the compression spring and the lock catch are respectively disposed in the inverted L-shaped groove and the wedge-shaped groove.

In any of the above schemes, preferably, a plurality of locking grooves adapted to the shape of the locking device are uniformly arranged on the inner tube.

The utility model has the advantages that: the utility model provides a telescopic link adjustment mechanism simple structure only needs one-hand operation can adjust length, and convenient to use works as the utility model discloses when being applied to in knee joint support draw gear, a user can adjust simultaneously two sets ofly the utility model discloses a length, and the length that can control the regulation, this telescopic adjustment mechanism is not restricted to being applied to the medical instrument field, and multiple trades such as the extensible is applied to life field, industrial field, building industry field have high-efficient convenient practical effect.

Drawings

Fig. 1 is a schematic view of a preferred embodiment of a telescopic rod adjusting mechanism according to the present invention;

fig. 2 is a schematic perspective view of the rotating handle in the embodiment of fig. 1 of the adjusting mechanism of the telescopic rod according to the present invention;

FIG. 3 is a schematic view of the embodiment of FIG. 1 in use of the telescoping rod adjustment mechanism in accordance with the present invention;

fig. 4 is a schematic view of the inner tube structure in the embodiment of fig. 1 of the adjusting mechanism of the telescopic rod according to the present invention.

The figures are labeled as follows: 1-locking nut; 2, locking and buckling; 3-compression spring; 4-rotating the handle; 5-a clamp spring; 6-inner tube; 7-outer tube.

Detailed Description

In order to further understand the present invention, the present invention will be described in detail with reference to the following embodiments.

As shown in fig. 1 and 2, the utility model provides a telescopic rod adjusting mechanism, which comprises a lock catch 2, a compression spring 3, a lock nut 1 and a rotating handle 4, wherein the rotating handle 4 is sleeved on the end parts of an inner tube 6 and an outer tube 7, a snap spring 5 is annularly arranged on the outer wall of the end part of the outer tube 7 connected with the inner tube 6, the rotating handle 4 comprises a handle structure and a long tube structure, the handle structure is annularly arranged on the snap spring 5, the lock nut 1 is connected with the rotating handle 4 through the lock catch 2, the inner wall of the lock nut 1 is respectively provided with a wedge-shaped groove and an inverted L-shaped groove, the compression spring 3 and the lock catch 2 are respectively arranged in the inverted L-shaped groove and the wedge-shaped groove, the long tube structure of the rotating handle 4 is provided with a through hole, the through hole is adapted to the shape of the lock catch 2, the lock catch 2 can extend into the through hole, and form the integral structure with the said rotating handle 4, therefore, when the said rotating handle 4 rotates, can drive the rotation of the said lock catch 2, the said compression spring 3 is fitted over the periphery of the long pipe structure of the said rotating handle 4, the said lock nut 1 is fitted over the periphery of the said compression spring 3, the both ends of the said compression spring 3 are supported against the said rotating handle 4 and end of the inverted L-shaped groove of the said lock nut 1 separately, the shape of the said lock catch 2 is adapted to the shape of the wedge-shaped groove of the said lock groove and inner wall of the said lock nut 1, set up several lock grooves adapted to the said lock catch shape evenly on the said inner tube 6, the said inner tube 6 sets up both sides of the said lock groove and is the planar structure, the planar structure can guarantee after the said lock catch 2 rotates 90 degrees (namely lock catch 2 that sets up the groove part rotates to one side that sets up the planar structure), the said lock catch 2 will laminate with the plane, therefore, the lock catch 2 moves to a plane without the lock groove, one side of the two groups of plane structures is provided with scale marks to provide the length of the support tube, the bottom of the inner tube 6 is annularly provided with a clamping groove (as shown in fig. 4), the clamping groove is provided with a wedge-shaped opening, the adjusting mechanism can be subjected to the effects of top end limitation and falling prevention by clamping the lock nut 1 into the clamping groove, the adjusting mechanism cannot be separated, and the lock nut 1 can be pushed out to a use position through the wedge-shaped opening.

In the present embodiment, as shown in fig. 3, the utility model is used as a telescopic rod in the structure, which can be pushed to keep away from both (the inner tube 6 and the outer tube 7), so the lock catch 2 slides out from the lock groove on the inner tube 6, the lock catch 2 is kept in the through hole of the rotating handle 4, then the rotating handle 4 is rotated by 90 degrees, the whole rotation of the utility model drives the lock catch 2 to move to the side without lock groove, then the length of the inner tube 6 in the outer tube 7 is shortened, after the adjustment is completed, the rotating handle 4 is rotated again to the original position, the utility model is pushed to keep away from both, therefore, the lock catch 2 can finish the fixation when moving into the lock groove, when the length of the inner tube 6 in the outer tube 7 needs to be prolonged, the utility model can be pushed directly to keep away from both for elongation, the lock catch 2 can slide out of the lock groove through external force and then enter the adjacent lock groove, and the supporting tube can be elongated through circulation of the above operations.

It will be understood by those skilled in the art that the present invention is not limited to the details of the invention, and that any combination of the above-described embodiments and portions shown in the drawings is not intended to limit the scope of the invention and that the embodiments of the invention are not described in any combination for the sake of brevity. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a telescopic link adjustment mechanism, includes inner tube and outer tube, the outer pipe box is established the inner tube periphery, set up the jump ring on the outer wall of outer tube and inner tube coupling tip, the jump ring is connected with adjustment mechanism, a serial communication port, adjustment mechanism is including the lock mother, hasp, compression spring and twist grip, the twist grip includes handle structure and long tube structure, and this long tube is structural to be set up the through-hole, the handle structure part cover of twist grip is established on the jump ring, the compression spring cover is established the long tube structure periphery of twist grip, compression spring's peripheral cover is established the lock mother, the structural through-hole that sets up of long tube of twist grip, the through-hole with the shape of hasp suits, the hasp sets up in the through-hole.

2. The mechanism of claim 1, wherein the locking nut is connected to the rotating handle via the locking buckle, and two ends of the compression spring respectively abut against the rotating handle and the ends of the inverted L-shaped groove of the locking nut.

3. The telescopic rod adjusting mechanism as claimed in claim 2, wherein the inner wall of the locking nut is provided with a wedge-shaped groove and an inverted L-shaped groove respectively.

4. The mechanism of claim 3 wherein the compression spring and the catch are disposed in the inverted L-shaped groove and the wedge-shaped groove, respectively.

5. The adjustable mechanism of claim 1, wherein the inner tube has a plurality of locking slots corresponding to the shape of the locking device.