CN214342462U

CN214342462U - Flexible shaft retractor

Info

Publication number: CN214342462U
Application number: CN202023163659.9U
Authority: CN
Inventors: 彭以刚
Original assignee: Hunan Boke Medical Technology Co ltd
Current assignee: Hunan Boke Medical Technology Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-10-08
Anticipated expiration: 2030-12-24

Abstract

The utility model is suitable for a medical equipment technical field relates to a flexible axle retractor, include: the flexible shaft locking device comprises a base assembly, a flexible shaft assembly, a locking assembly and a steel wire rope; the base assembly comprises a first assembly and a second assembly, the second assembly is partially arranged in the first assembly, and the second assembly comprises a first adjusting piece; the locking assembly comprises a first connecting piece; the flexible shaft assembly is formed by connecting a plurality of spheres, the first adjusting piece of the second assembly is connected with the sphere at one end of the flexible shaft assembly, and the first connecting piece of the locking assembly is connected with the sphere at the other end of the flexible shaft assembly; the base assembly, the flexible shaft assembly and the locking assembly sequentially penetrate through the steel wire rope to be connected in series to form a whole. The utility model discloses adjust steadily conveniently, structural strength is high, is difficult to the fracture, and flexible axle subassembly self weight is lighter, is difficult for weighing down because of the dead weight after being supported, and the second subassembly can reduce the regulation resistance to auxiliary positioning makes the utility model discloses adjust and link up light more.

Description

Flexible shaft retractor

Technical Field

The utility model belongs to the technical field of medical equipment, concretely relates to flexible axle retractor.

Background

The flexible shaft retractor is a medical instrument used in an operation process, and is used for fixing and adjusting the position of a brain pressing plate during an operation, so that brain tissues are continuously separated by using the brain pressing plate, the visual field is expanded, and an operation channel is established.

The existing flexible shaft retractor is used, a universal adjusting assembly consisting of hemispherical head rotary joints is supported by a base, if the self weight is large, the universal adjusting assembly easily falls due to dead weight, so that the positions of clamping objects of a head clamping mechanism are influenced, and limiting cylindrical tables at two ends of a steel wire rope of the existing flexible shaft retractor are not formed by pouring through a mold, but one end of the existing flexible shaft retractor is poured, the other end of the existing flexible shaft retractor is wrapped at the tail end of the steel wire rope through a metal sheet, then the metal sheet is compressed and the like to be connected with the steel wire rope, the sheet in the connection mode is easy to slide when stressed, and accordingly the flexible shaft retractor is broken.

Therefore, the problem to be solved by those skilled in the art is how to provide a flexible shaft retractor which has high structural strength, is not easy to break, is lighter in self weight by a support component, is not easy to fall down, and is consistent in adjustment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flexible axle retractor to solve among the prior art flexible axle retractor structural strength not high, by the heavier easy tenesmus of supporting component dead weight, easy fracture and adjust inconvenient problem.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a flexible axle retractor, include: the flexible shaft locking device comprises a base assembly, a flexible shaft assembly, a locking assembly and a steel wire rope; the base assembly comprises a first assembly and a second assembly, the second assembly is partially installed in the first assembly, and the second assembly comprises a first adjusting piece; the locking assembly comprises a first connector; the flexible shaft assembly is formed by connecting a plurality of balls, the first adjusting piece of the second assembly is connected with the ball at one end of the flexible shaft assembly, and the first connecting piece of the locking assembly is connected with the ball at the other end of the flexible shaft assembly; the base assembly, the flexible shaft assembly and the locking assembly sequentially penetrate through the steel wire rope to be connected in series to form a whole.

Further, the first assembly comprises a base, a guide, a first bearing and a second bearing; the guide is installed in the base, the first bearing is installed on the guide, and the second bearing is installed in the base and located above the first bearing.

Further, the second assembly further comprises a second adjusting piece; one end of the first adjusting piece, which is far away from the flexible shaft assembly, is nested in the guide piece, the second adjusting piece is installed on the first adjusting piece through matching of self internal threads and corresponding external threads of the first adjusting piece, and the second adjusting piece is inserted into the second bearing inner ring through self external cylinders at one end.

Furthermore, the second regulating part outside still is equipped with rotates the piece mounting hole, install in the rotation piece mounting hole and rotate the piece.

Furthermore, the sphere of the flexible shaft assembly comprises an outer spherical surface and an inner spherical hole, and the flexible shaft assembly is formed by nesting a plurality of outer spherical surfaces and the inner spherical hole.

Furthermore, the locking assembly also comprises a second connecting piece, a fixing piece, a third connecting piece, a supporting piece and a pressure piece; the second connecting piece with pressure piece fixed connection, the second connecting piece with pressure piece be connected wholly with support piece passes through the third connecting piece is connected.

Furthermore, a through hole is formed in the first connecting piece, and the second connecting piece penetrates through the through hole and is fixed through the fixing piece.

Further, wire rope includes big cylinder platform and small circle cylinder platform, big cylinder platform penetrates base step hole in the base and fixed, small circle cylinder platform is installed in the recess of first connecting piece.

Furthermore, one end of the rotating part is fixed with a rotating part end cover.

Further, the side face of the base is also provided with a connector, the bottom of the base is provided with a base end cover, and the base end cover is fixed with the base and the guide piece through screws.

Compared with the prior art, the utility model provides a pair of flexible axle retractor has following beneficial effect at least:

the utility model discloses adjust steadily conveniently, structural strength is high, is difficult to the fracture, and flexible axle subassembly self weight is lighter, is difficult for weighing down because of the dead weight after being supported, and the second subassembly can reduce the regulation resistance to auxiliary positioning makes the utility model discloses adjust and link up light more.

Drawings

In order to illustrate the solution of the present invention more clearly, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without inventive work.

Reference numerals: 1-a base assembly; 10-a first component; 101-a base; 1010-base step hole; 1011-a connector; 1012-base end cap; 102-a guide; 103-a first bearing; 104-a second bearing; 11-a second component; 110-a first adjustment member; 111-a second adjustment member; 112-a rotating member; 1121-rotor end cap; 113-rotor mounting holes; 2-flexible shaft assembly; 20-sphere; 201-an outer spherical surface; 202-inner spherical surface; 3-a locking assembly; 30-a first connector; 301-groove 31-second connector; 32-a fastener; 33-a third connection; 34-a support; 35-a pressure member; 4-a steel wire rope; 41-large column base; 42-small cylindrical frustum.

Fig. 1 is an exploded view of a flexible shaft retractor according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a base of a first component of a flexible shaft retractor according to an embodiment of the present invention;

fig. 3 is an overall view of a second component of the flexible shaft retractor provided in the embodiment of the present invention;

fig. 4 is a whole sphere view of a flexible shaft retractor provided in the embodiment of the present invention;

fig. 5 is a schematic view of a ball connection of a flexible shaft assembly of a flexible shaft retractor according to an embodiment of the present invention;

fig. 6 is an overall view of a locking assembly of a flexible shaft retractor provided in an embodiment of the present invention;

fig. 7 is an overall view of a wire rope of a flexible shaft retractor provided in an embodiment of the present invention.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, for example, the terms "length," "width," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or position illustrated in the drawings, which are for convenience of description only and are not to be construed as limiting of the present disclosure.

The terms "including" and "having," and any variations thereof, in the description and claims of this invention and the description of the above figures are intended to cover non-exclusive inclusions; the terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. In the description and claims of the present invention and in the description of the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The utility model provides a flexible axle retractor is applied to in the medical equipment, flexible axle retractor includes:

the flexible shaft locking device comprises a base assembly, a flexible shaft assembly, a locking assembly and a steel wire rope; the base assembly comprises a first assembly and a second assembly, the second assembly is partially arranged in the first assembly, and the second assembly comprises a first adjusting piece; the locking assembly comprises a first connecting piece; the flexible shaft assembly is formed by connecting a plurality of spheres, the first adjusting piece of the second assembly is connected with the sphere at one end of the flexible shaft assembly, and the first connecting piece of the locking assembly is connected with the sphere at the other end of the flexible shaft assembly; the base assembly, the flexible shaft assembly and the locking assembly sequentially penetrate through the steel wire rope to be connected in series to form a whole.

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

The embodiment of the utility model provides a flexible axle retractor is applied to in the medical equipment, as shown in figure 1, flexible axle retractor includes:

the device comprises a base component 1, a flexible shaft component 2, a locking component 3 and a steel wire rope 4; the base assembly 1 comprises a first assembly 10 and a second assembly 11, the second assembly 11 comprises a first adjusting piece 110, and the first adjusting piece 110 is an adjusting screw rod; the locking assembly 3 comprises a first connecting piece 30, and the first connecting piece 30 is a connecting tail rod; the flexible shaft component 2 is formed by mutually connecting a plurality of spheres 20, the adjusting screw of the second component 11 is connected with the sphere 20 at one end of the flexible shaft component 2, the connecting tail rod of the locking component 3 is connected with the sphere 20 at the other end of the flexible shaft component 2, and the base component 1, the flexible shaft component 2 and the locking component 3 sequentially penetrate through the steel wire rope 4 from the inside and are connected in series to form a whole.

Further, in this embodiment, with reference to fig. 1 and fig. 2, the first assembly 10 includes a base 101, a guide 102, a first bearing 103, and a second bearing 104, and the guide 102, the first bearing 103, and the second bearing 104 are installed in the base 101 from bottom to top, where the guide 102 is a guide pillar, the first bearing 103 is a thrust bearing, the second bearing is a needle bearing, the thrust bearing is installed on the guide pillar, and the needle bearing is installed in the base and located above the thrust bearing.

Further, in this embodiment, with reference to fig. 1 and fig. 3, the second assembly 11 further includes a second adjusting member 111, and the second adjusting member is an adjusting nut; one end of the adjusting screw rod, which is far away from the flexible shaft assembly 2, is nested in the guide piece 102, the adjusting nut is installed on the adjusting screw rod through the rotating screwing fit of the internal thread of the adjusting nut and the corresponding external thread of the adjusting screw rod, and the adjusting nut is inserted into the inner ring of the needle bearing through the external cylinder at one end of the adjusting nut.

Further, in this embodiment, with reference to fig. 1 and fig. 3, a rotating member mounting hole 113 is further formed in the outer side of the adjusting nut, the rotating member 112 is mounted in the rotating member mounting hole 113, the rotating member 112 is a rotating pin, the rotating member mounting hole 113 is a rotating pin mounting hole, the rotating pin can freely slide in the rotating pin mounting hole, and when the rotating pin moves to the top end, the rotating pin can freely rotate within 90 degrees relative to the adjusting nut. When the adjustment is needed, the rotating part 112 is moved to the top end, the rotating part 112 is rotated, the axis of the rotating part 112 is perpendicular to the axis of the adjusting screw rod, the rotating part 112 is rotated clockwise or anticlockwise, the adjusting nut is driven to rotate, and the adjusting screw rod can realize the axial ascending or descending through the thread transmission. After the adjustment is completed, the rotating member 112 is rotated by 90 degrees, so that the axis of the rotating member 112 is parallel to the axis of the adjusting screw.

Further, in this embodiment, an end of the rotation pin rod away from the rotation pin rod mounting hole is fixedly provided with a rotation piece end cover 1121.

Further, in this embodiment, referring to fig. 1, fig. 4 and fig. 5, the sphere 20 of the flexible shaft assembly 2 includes an outer spherical surface 201 and an inner spherical hole 202, and the outer spherical surfaces 201 and the inner spherical hole 202 are nested with each other to form the flexible shaft assembly 2.

In the present embodiment, the number of the balls 20 is at least two.

Further, in this embodiment, with reference to fig. 1 and fig. 6, the locking assembly 3 further includes a second connecting member 31, a fixing member 32, a third connecting member 33, a supporting member 34, and a pressure member 35; the second connecting piece 31 is an M4 screw rod, the fixing piece 32 is a butterfly nut, the third connecting piece 33 is a pin screw rod, the supporting piece 34 is a locking component supporting plate, the pressure piece 35 is a locking component pressing plate, the M4 screw rod and the locking component pressing plate are fixed by welding, and the welding whole of the M4 screw rod and the locking component pressing plate is connected with the locking component supporting plate by the pin screw rod in a way of sequentially penetrating through the screw rod.

Further, in this embodiment, with reference to fig. 1 and fig. 6, a through hole is formed on the connection tail rod, and the M4 screw penetrates through the through hole and is fixed by the butterfly nut.

Further, in this embodiment, with reference to fig. 1, 6 and 7, the steel wire rope 4 includes a large cylindrical table 41 and a small cylindrical table 42, the large cylindrical table 41 penetrates into a base step hole 1010 in the base 101 and is fixed, and the small cylindrical table 42 carries the steel wire rope body to sequentially penetrate through the ball 20 of the flexible shaft assembly 2 and is connected with the groove 301 of the connection tail rod of the locking assembly 3.

Further, in this embodiment, as shown in fig. 1, the side of the base 101 is further provided with a connector 1011, the bottom of the base 101 is provided with a base end cap 1012, and the base end cap 1012 is fixed with the base 101 and the guide 102 by screws.

The flexible shaft retractor of the embodiment is stable and convenient to adjust, and the adjusting force borne by the steel wire rope 4 is output linearly; the large cylindrical platforms 41 and the small cylindrical platforms 42 at the two ends of the steel wire rope 4 have better process and high structural strength and are not easy to break; the ball body 20 of the flexible shaft component 2 is made of high-strength and high-temperature-resistant PPSU materials, so that the weight of the flexible shaft retractor can be reduced while the use requirement is met; the thrust bearing and the needle bearing of second subassembly 11 can reduce the frictional resistance when adjusting nut rotates the regulation, still can carry out assistance-localization real-time to adjusting nut simultaneously, make the utility model discloses adjust and more link up light.

It is to be understood that the above-described embodiments are merely preferred embodiments of the present invention, rather than all embodiments, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. The present invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made, and equivalents may be substituted for elements thereof. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.

Claims

1. A flexible shaft retractor is characterized by comprising:

the flexible shaft locking device comprises a base assembly, a flexible shaft assembly, a locking assembly and a steel wire rope;

the base assembly comprises a first assembly and a second assembly, the second assembly is partially installed in the first assembly, and the second assembly comprises a first adjusting piece; the locking assembly comprises a first connector; the flexible shaft assembly is formed by connecting a plurality of balls, the first adjusting piece of the second assembly is connected with the ball at one end of the flexible shaft assembly, and the first connecting piece of the locking assembly is connected with the ball at the other end of the flexible shaft assembly;

the base assembly, the flexible shaft assembly and the locking assembly sequentially penetrate through the steel wire rope to be connected in series to form a whole.

2. The flexible shaft retractor of claim 1, wherein the first assembly comprises a base, a guide, a first bearing and a second bearing; the guide is installed in the base, the first bearing is installed on the guide, and the second bearing is installed in the base and located above the first bearing.

3. The flexible shaft retractor of claim 2, wherein the second assembly further comprises a second adjustment member; one end of the first adjusting piece, which is far away from the flexible shaft assembly, is nested in the guide piece, the second adjusting piece is installed on the first adjusting piece through matching of self internal threads and corresponding external threads of the first adjusting piece, and the second adjusting piece is inserted into the second bearing inner ring through self external cylinders at one end.

4. The flexible shaft retractor according to claim 3, wherein a rotating member mounting hole is further formed in the outer side of the second adjusting member, and a rotating member is mounted in the rotating member mounting hole.

5. The flexible shaft retractor of claim 1, wherein the ball of the flexible shaft assembly comprises an outer spherical surface and an inner spherical hole, and the flexible shaft assembly is formed by nesting a plurality of the outer spherical surfaces and the inner spherical hole.

6. The flexible shaft retractor of claim 1, wherein the locking assembly further comprises a second connector, a fixing member, a third connector, a support member, and a pressure member; the second connecting piece with pressure piece fixed connection, the second connecting piece with pressure piece be connected wholly with support piece passes through the third connecting piece is connected.

7. The flexible shaft retractor according to claim 6, wherein the first connector has a through hole, and the second connector passes through the through hole and is fixed by the fixing member.

8. The flexible shaft retractor according to claim 2, wherein the wire rope comprises a large cylindrical table and a small cylindrical table, the large cylindrical table penetrates into a base step hole in the base for fixation, and the small cylindrical table is installed in the groove of the first connecting piece.

9. The flexible shaft retractor of claim 4, wherein a rotating member end cap is fixed to one end of the rotating member.

10. The flexible shaft retractor according to claim 2, wherein a connector is further disposed on a side surface of the base, and a base end cap is disposed at a bottom of the base and fixed to the base and the guide member by screws.