CN111803144A

CN111803144A - Unlimited roll-over handle structure

Info

Publication number: CN111803144A
Application number: CN202010678005.5A
Authority: CN
Inventors: 孔维阳
Original assignee: Wuhan United Imaging Zhirong Medical Technology Co Ltd
Current assignee: Wuhan United Imaging Zhirong Medical Technology Co Ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2020-10-23
Anticipated expiration: 2040-07-14
Also published as: CN111803144B

Abstract

The invention relates to an unlimited rolling handle structure, which comprises: a base structure; a thumb wheel structure; including thumb wheel casing, cable adaptor and cable, the entrance hole has been seted up to thumb wheel casing one end, the other end rotates with the base structure and is connected, the cable adaptor can move in thumb wheel casing, the cable gets into thumb wheel casing from the entrance hole to through the switching of cable adaptor, be connected with the base structure again, the cable adaptor can also make to connect and can follow the axial relative rotation between the front and back cable of cable connecting piece in the connecting cable. The wire cable adapter is provided with the wire cable adapter and the wire cable, the wire cable adapter enables the front wire cable and the rear wire cable connected with the wire cable connector to relatively rotate along the axial direction, so that the free rotation of the wire cables is realized, the wire cable is prevented from being wound, the 360-degree continuous rolling between the base body structure and the dial wheel structure can be realized, the adjusting handle does not need to be stopped in the rotating process, and the experience in the using process is greatly improved.

Description

Unlimited roll-over handle structure

Technical Field

The invention relates to the technical field of medical equipment, in particular to an unlimited rolling handle structure.

Background

The existing minimally invasive surgical tool for remote operation generally comprises a main body and a handle for controlling a far-end operating mechanism, wherein the handle can rotate relative to the main body according to actual use requirements, so that an operator can keep a good operation holding angle at any time; however, the prior handles have the following problems: the handle can only roll over certain angle with the main part relatively, and when the angle of relative roll-over was too big, the winding appeared with the inside cable of main part in the handle, can't further rotate, leads to under some operating angle, the handle can not be fine with operator's hand laminating, influence actual operation's experience.

Disclosure of Invention

The invention aims to solve the problem that unlimited rolling cannot be realized in the prior art, and provides a handle structure capable of unlimited rolling.

The technical scheme adopted by the invention is as follows: an unlimited roll handle structure comprising:

a base structure;

a thumb wheel structure; including thumb wheel casing, cable adaptor and cable, thumb wheel casing one end seted up the entrance hole, the other end with the base structure rotates to be connected, the cable adaptor can move in the thumb wheel casing, the cable is followed the entrance hole gets into thumb wheel casing, and pass through the cable adaptor switching, again with the base structure is connected, the cable adaptor is in connecting when the cable, can also make connect in can follow the axial and rotate relatively between the front and back cable of cable connecting piece.

The unlimited rolling handle structure is provided with the cable adaptor and the cable, the cable adaptor enables the front cable and the rear cable connected with the cable connector to relatively rotate along the axial direction, so that the cables can freely rotate, the cable winding is avoided, the 360-degree uninterrupted rolling between the base structure and the dial wheel structure can be realized, the handle does not need to be stopped and adjusted in the rotating process, and the experience in the using process is greatly improved.

Drawings

FIG. 1 is a block diagram of an unlimited roll handle configuration provided by the present invention;

FIG. 2 is a block diagram of the thumb wheel configuration of FIG. 1;

FIG. 3 is a block diagram of the base structure of FIG. 1;

FIG. 4 is a block diagram of the release assembly of FIG. 3;

FIG. 5 is a view showing the construction of the rotating member shown in FIG. 3;

FIG. 6 is a schematic view of the wrench member, release assembly, rotating member and limiter assembly of FIG. 3;

FIG. 7 is a block diagram of another unlimited roll handle configuration provided by the present invention;

FIG. 8 is a schematic cross-sectional view of the base structure of FIG. 7;

FIG. 9 is an enlarged view of the restraint of FIG. 8;

FIG. 10 is a block diagram of another unlimited roll handle configuration provided by the present invention;

FIG. 11 is a schematic cross-sectional view of the base structure of FIG. 10;

FIG. 12 is an enlarged view of the restraint of FIG. 11;

FIG. 13 is a block diagram of another unlimited roll handle configuration provided by the present invention;

FIG. 14 is a schematic cross-sectional view of the base structure of FIG. 13;

FIG. 15 is an enlarged view of the restraint of FIG. 14; .

Detailed Description

The unlimited roll handle structure provided by the invention is described in the following with the attached drawings:

referring to fig. 1-6, an unlimited rolling handle structure according to the present invention includes: thumb wheel structure 1, base structure 2, thumb wheel structure 1 with base structure 2 is connected, base structure 2 relatively thumb wheel structure 1 can unrestricted rotation. When in use, the base structure 2 is a holding part, so the base structure 2 is bent into an arc shape to fit the holding posture of a human body.

The dial wheel structure 1 comprises a dial wheel shell 11, a cable adaptor and a cable, wherein one end of the dial wheel shell is provided with an inlet hole, the other end of the dial wheel shell is connected with the base structure in a rotating mode, the cable adaptor can move in the dial wheel shell, the cable enters the dial wheel shell from the inlet hole, is connected with the base structure through the cable adaptor in a switching mode, and can also be connected with the front cable and the rear cable of the cable connector in a relatively rotating mode along the axial direction when the cable adaptor is connected with the cable.

The cable adaptor comprises a sliding part 12 and a rotating part 13, an accommodating cavity is formed in the thumb wheel shell 11 along the length direction of the thumb wheel shell, the sliding part 12 is arranged in the accommodating cavity in a sliding mode, the rotating part 13 is rotatably connected with the sliding part 12, the cable comprises a first cable and a second cable, the first cable penetrates through the wire inlet hole to be connected with the sliding part, one end of the second cable is connected with the rotating part, and the other end of the second cable is connected with the base structure 2; when the base structure 2 rotates, the second cable drives the rotating part 13 to rotate relative to the sliding part 12, and the first cable connected with the controlled unit outside the unlimited rolling handle structure cannot follow the base structure 2 to rotate, so that the condition that the cable is wound inside is avoided, and the effect that the base structure 2 rotates relative to the dial wheel structure 1 without limitation is realized.

In order to realize the effect of the first cable for regulating and controlling the controlled unit outside the unlimited rolling handle structure, the sliding part 12 can translate in the accommodating cavity, so that the length of the part of the first cable outside the unlimited rolling handle structure is changed, and the effect of regulating and controlling the controlled unit is achieved.

It is only necessary for the sliding element 12 to be able to translate within the housing cavity, and therefore it is not limited to a certain shape, for example, in some similar embodiments, the sliding element 12 is a disc or a bar; the volume of the disc or the strip is smaller than that of the accommodating cavity, and the disc or the strip can move in the accommodating cavity.

In some embodiments, the sliding member 12 is in the shape of a rod, one end of which is connected to the first cable, and the other end of which is movably connected to the rotating member 13, and the rotating member 13 is in the shape of a rod, and one end of the rotating member 13 is movably connected to the sliding member 12, and the other end of which is connected to the second cable.

In this embodiment, the sliding member 12 includes a cylindrical sliding portion, a front fixing member mounted at one end of the sliding portion opposite to the wire inlet, and a rear fixing member mounted at the other end of the sliding portion, the outer wall of the sliding portion is in sliding contact with the inner wall of the accommodating cavity, and the rotating member 13 is disposed in the sliding member and rotatably connected to the rear fixing member.

The rear fixed member is ring-shaped, and the second cable passes through the rear fixed member and is connected with the rotation member 13.

In this embodiment, as shown in fig. 2, the sliding part 12 is cylindrical, the length of the sliding part 12 is smaller than that of the accommodating cavity, and the shape of the outer wall of the sliding part 12 is matched with that of the inner wall of the accommodating cavity, so that the sliding part 12 can only move horizontally in the accommodating cavity, thereby avoiding the situation that the sliding part 12 shakes and collides with the inner wall of the accommodating cavity, and reducing the service life.

The sliding mode has a plurality of modes, and the reason for adopting the structure mode is that: the equipment of this application belongs to precision equipment, and it is very high to the requirement of precision, and the gliding stability can be improved in drum formula slip, and it cooperates with built-in rotating piece 13, can guarantee that slider 12 has certain length on the one hand, can guarantee gliding stability, has avoided rotating piece 13 occupation space simultaneously, does benefit to and reduces whole equipment space occupation rate.

In order to facilitate the fixation of the first cable on the sliding part 12, an arc-shaped through hole 121 is formed in the front fixing part of the sliding part 12, and one end of the first cable extends into the arc-shaped through hole 121 and is fixed with the sliding part 12.

In this embodiment, as shown in fig. 2, the rotating member 13 is a bearing, and has a first rotating portion and a second rotating portion, the first rotating portion is rotatably connected to the second rotating portion, the first rotating portion is fixedly installed at one end of the sliding member far away from the wire inlet, and the second rotating portion is fixed to one end of the first cable.

In order to facilitate the fixing of the second cable on the rotating member 13, the wheel construction 1 further comprises a wire tying pin 15, the wire tying pin 15 is fixed to a portion of the rotating member 13 which is movable relative to the first member 12, and one end of the second cable is tied to the wire tying pin 15, thereby achieving the effect that the second cable is rotatable relative to the first member 12.

In order to facilitate the use, the base structure 2 and the thumb wheel housing 11 can rotate smoothly, the thumb wheel structure 1 further comprises a thrust bearing 14, the thrust bearing 14 is embedded on the inner wall of the thumb wheel housing 11, the base structure 2 is connected with the thrust bearing 14, and the base structure 2 and the thumb wheel housing 11 are rotatably connected through the thrust bearing 14.

For making things convenient for the cable to get into in the thumb wheel structure 1, thumb wheel structure 1 still includes an

inlet wire joint

16, 11 inner walls of thumb wheel casing are protruding, form a spool 111, inlet wire joint 16 inlays to be established on the thumb wheel casing 11 inner wall, inlet wire joint 16 one end is located the thumb wheel casing 11 is outside, the inlet wire joint 16 other end is located in the thumb wheel casing 11.

The first cable enters the thumb wheel housing 11 through the wire inlet joint 16, passes through the winding shaft 111, and is fixed on the first member 12.

The base structure 2 only needs to be movably connected with the thumb wheel housing 11, so that the structure of the base structure 2 is not particularly limited to the technical problem of "unlimited rolling", and it can be understood that the base structure 2 is a structure commonly used in the art.

Because the base structure 2 is a holding part in use, the base structure 2 is bent into an arc shape to fit a held hand.

Base structure 2 includes handle casing 21, driving piece 22, displacement piece 24 and restriction piece 25, handle casing 21 with thumb wheel casing 11 rotates to be connected, place in displacement piece 24 handle casing 21 and with handle casing 21 inner wall rotates to be connected, the second cable is kept away from the one end of thumb wheel structure 1 with displacement piece 24 is connected, driving piece 22 one end with displacement piece 24 is connected, and the other end passes handle casing 21 and is used for the drive displacement piece 24 is relative handle casing 21 rotates and sets for turned angle, restriction piece 25 with displacement piece 24 butt and controllable restriction piece 24 unidirectional rotation.

The second cable gets into the one end winding of basal body structure 2 is in on the displacement piece 24, driving piece 22 drive displacement piece 24 rotates, makes the second cable shorten, the pulling slider 12 is in the holding intracavity translation makes the cable be located the length of the outer part of unlimited roll handle structure shorten, plays the effect of regulation and control controlled unit, restriction spare 25 restriction displacement piece 24 unidirectional rotation makes current rotation state is maintained to displacement piece 24, thereby realizes displacement piece 24's automatic locking no longer needs the constantly controlled rotation state (for example stop operation driving piece), promotes the experience in the use by a wide margin.

The handle shell 21 is connected with the thrust bearing 14, so that the handle shell 21 is rotatably connected with the thumb wheel shell 11,

it is only necessary for the driving member 22 to be operable to drive the displacement member 24 in rotation. In some embodiments, the driving member 22 includes a connecting rod and a rotating wheel, the connecting rod is coaxially connected to the displacement member 24 at one end and the rotating wheel at the other end, and when the rotating wheel is rotated, the displacement member 24 is also rotated to shorten the second cable.

Since the base structure 2 is a holding portion, in order to facilitate one-handed operation, in the embodiment, as shown in fig. 6, the driving member 22 includes a handle 221 and an arc-shaped connecting rod 222, one end of the handle 221 is hinged to the handle casing 21, the other end forms a driving side and a connecting side, the driving side at least partially penetrates through the handle casing 21, the connecting side at least partially extends into the handle casing 21 and is hinged to one end of the arc-shaped connecting rod 222, and the other end of the arc-shaped connecting rod 222 is hinged to the displacement member 24.

It is only necessary for the displacement member 24 to be operable to wind the second cable.

Furthermore, since the base structure 2 is a holding portion, the size is not suitable to be too large, so that the matching space between the displacement member 24 and the handle 221 is reduced to save the internal space of the base structure 2. The displacement piece 24 is provided with an assembly groove 242, the bottom surface of the assembly groove 242 is provided with an arc-shaped through hole 245, the bottom surface of the assembly groove 242 protrudes to form a rotating shaft 246, one surface of the handle 221, which is close to the displacement piece 24, is provided with an accommodating groove 2211, the displacement piece 24 partially extends into the accommodating groove 2211, the arc-shaped connecting rod 222 is arranged in the assembly groove 242, one end of the arc-shaped connecting rod is sleeved on the rotating shaft 246, the arc-shaped through hole 243 uses the rotating shaft 244 as a circle center, a connecting rod 2212 is arranged between the side walls of the accommodating groove 2211, and the connecting rod 2212 penetrates through the arc-shaped through hole 245 and the other end of the arc-shaped.

When the other end of the handle 221 is pinched, the handle 221 rotates relative to the handle housing 21, the connecting rod 2212 moves along the arc through hole 243, and the arc connecting rod 222 pushes the displacement member 24 to rotate. In terms of volume, since the ratchet wheel portion extends into the accommodating groove 2211, the matching space between the displacement member 24 and the handle 221 is reduced, and the internal space of the base structure 2 is effectively saved.

In order to facilitate the fixing of the second cable on the displacement member 24, the surface of the displacement member 24 extends axially to form a boss 241, a winding track is arranged along the circumferential direction of the boss 241, and the second cable entering the base structure 2 is wound on the winding track.

In this embodiment, the displacement member 24 is disc-shaped, and a control track is disposed on an outer circumferential surface of the displacement member along a circumferential direction thereof, and the limiting member 25 abuts against the control track and controllably limits the unidirectional rotation of the displacement member 24.

In some embodiments, the control track is a salient point track 243, which includes an arc-shaped sliding track circumferentially arranged along the outer circumferential surface of the rotating member and a plurality of protrusions or a plurality of grooves uniformly arranged along the arc-shaped sliding track.

Further, the limiting member 25 includes a limiting portion, an elastic portion and a control portion 23, one end of the limiting portion is hinged to the inner wall of the handle housing 21, one end of the elastic portion is connected to the limiting portion and generates elastic force to drive the limiting portion to rotate forward until the other end of the elastic portion abuts against between two adjacent protrusions or in a groove on the cam track, one end of the control portion is connected to the limiting portion, and the other end of the control portion protrudes out of the handle housing 21 and is used for driving the limiting portion to rotate backward until the other end of the control portion disengages from the rotating member.

The elastic part is a torsion spring.

The control portion 23 only needs to be brought out of contact with the displacement member 24. In some embodiments, the control portion 23 is a rope, one end of the rope is connected to one end of the limiting portion contacting with the displacement member 24, and when the limitation on the displacement member 24 needs to be removed, the rope is pulled to move the end of the limiting portion contacting with the displacement member 24 to be separated from the contact with the displacement member 24, so that the limitation on the displacement member 24 is removed.

As shown in fig. 4 and 6, the control portion 23 includes a wheel disc 231 and a transmission member 232, the wheel disc 231 is rotatably disposed on the handle housing 21 and is connected to one end of the transmission member 232, the other end of the transmission member 232 is connected to the limiting portion, and the transmission member 232 is configured to convert the rotation amount of the wheel disc 231 into a force for pushing the limiting portion to swing relative to the handle housing 21; the restricting portion is switched between two states of abutting against the displacement member 24 and not abutting against the displacement member.

Further, the transmission piece 232 includes a rotating rod 2321 and a shifting rod 2322, one end of the rotating rod 2321 is fixed to the wheel disc 231, the surface of the other end of the rotating rod 2321 is partially convex to form a cam 2323, the middle of the shifting rod 2322 is hinged to the handle shell 21, one end of the shifting rod 2322 is abutted to the cam 2323, the other end of the shifting rod 2322 is abutted to the limiting portion, when the wheel disc 231 rotates, the cam 2323 is driven to rotate, the shifting rod 2322 swings to shift the limiting portion, and the limiting portion can be unlocked at any position locked by the displacement piece 24 and can be disengaged from the displacement piece 24, so that the displacement piece 24 is released.

In other embodiments, the control track includes a salient point track 243 and a smooth track 244 which are arranged side by side, the salient point track 243 includes an arc-shaped slideway arranged along the circumferential direction of the outer circumferential surface of the rotating member and a plurality of protrusions or a plurality of grooves uniformly arranged along the arc-shaped slideway, the smooth track 244 is a curved slideway, a stroke starting end of the curved slideway protrudes out of the salient point slideway 243, and a stroke end of the curved slideway is in smooth transition with the slideway, the smooth track 244 gradually increases from the stroke starting end to the stroke end, and the width of the salient point track 243 gradually decreases from the stroke starting end to the stroke end; correspondingly, the limiting part 25 includes a limiting part and an elastic member, one end of the limiting part is hinged to the inner wall of the handle casing 21, and an acting end of the elastic member is connected to the limiting part and generates an elastic force for driving the limiting part to translate from the salient point rail 243 to the smooth rail and an elastic force for driving the limiting part to rotate until the other end of the limiting part abuts against the control rail.

The elastic part is a torsion spring.

When the limit part reaches the end of the salient point track 243, the limit part is pushed by the torsion spring to translate along the axis of the pin shaft 211 and enter the smooth track 244, and the dead lock part of the displacement piece 24 is released. And the smooth rail 244 becomes narrower from the beginning to the end, and when the limiting part reaches the end of the smooth rail 244, the end of the smooth rail 244 is narrowed to push the limiting part into the bump rail 243, which has the effect of helping the limiting part to switch the rails, so that the locking state of the limiting part and the displacement member 24 reaches the limit and then automatically releases.

Further, since the driving member 22 only drives the displacement member 24 to rotate for a certain angle, the salient point rail 243 and the smooth rail 244 do not need to be annularly arranged on the circumferential surface of the ratchet wheel, and the radian corresponding to the salient point rail 243 and the smooth rail 244 is equal to the radian corresponding to the arc-shaped through hole 243.

In another embodiment, as shown in fig. 7-9, the displacement member 24 is in the shape of a bar, one end of which is movably connected to the inner wall of the handle housing 21, and the end surface of the other end of which is provided with a plurality of wave-shaped teeth 245 for clamping, and the driving member 22 is disposed on the displacement member 24 and at least partially penetrates through the handle housing 21. The limiting member 25 comprises a steel plate 251 with certain elasticity, a fixing portion 252 and a displacement spring 253, wherein one end of the steel plate 251, which is far away from the displacement member 24, is fixed with the fixing portion 252, and extends towards one side surface of the displacement member 24 to form a protruding portion, the shape of the protruding portion is similar to that of the waveform teeth 245, and the protruding portion and the waveform teeth 245 are dislocated in an unstressed state. One end of the displacement spring 253 is fixed to one end of the fixing portion 252, the other end of the displacement spring 253 is fixed to the inner wall of the handle housing 21, when external force is applied, the displacement spring 253 stretches in a direction perpendicular to the inner wall of the handle housing 21, the other end of the fixing portion 252 is movably arranged in the handle housing 21 in a penetrating mode, and a button is formed at the end portion, located outside the handle housing 21, of the other end of the fixing portion.

In the above embodiment, an anti-reverse abutment 246 is formed by extending one end of the displacement member 24 close to the limiting member 25, and the anti-reverse abutment 246 abuts one surface of the steel sheet 251 facing away from the displacement member 24.

In the use of the above embodiment, when the driving member 22 is pinched, one end of the driving member 22 abutting against the displacement member 24 pushes the displacement member 24 to rotate, at this time, the protrusion is not in contact with the wavy teeth 245, and the displacement member 24 can rotate freely, pulling the second cable; when needs are locked, press the button, make displacement spring 253 compresses, steel sheet 251 with displacement member 24 contacts, the protruding portion with wave form tooth 245 forms the joint, the protruding portion with frictional force between the wave form tooth 245 makes displacement spring 253 keeps the compression state, then has reached the purpose of locking, if wave form tooth 245 sets up enough intensive, then can realize the effect of the stepless locking of second cable, when needs release, then stir again the button, destroy the protruding portion with frictional force between the wave form tooth 245, steel sheet 251 with displacement member 24 breaks away from the contact, then displacement member 24 is released.

As shown in fig. 10 to 12, in another embodiment, the displacement member 24 includes an inner ring 241a, an outer ring 242a, an abutting spring 243a, and a steel column 244a, the inner ring 241a is fixed to the inner wall of the handle housing 21, the outer ring 242a is movably sleeved on the outer circumferential surface of the inner ring 241a, a gap 245a is formed at the edge of the inner ring 241a, the steel column 244a is disposed through the gap 245a, the circumferential surface of the abutting spring 243a contacts with the inner circumferential surface of the outer ring 242a, one end of the abutting spring 243a is fixed to the inner wall of the gap 245a, the other end of the abutting spring 243a is radially fixed to the steel column 244a, the outer circumferential surface of the outer ring 242a is provided with a track for winding the second cable, and the outer ring 242a extends radially to form an abutting table abutting against the driving.

In the above embodiment, the driving member 22 includes a fixing block 221a, a connecting rod 222a and an abutting head 223a, the fixing block 221a is fixed to the inner wall of the handle housing 21, the connecting rod 222a is inserted into the fixing block 221a, one end of the connecting rod 222a is located outside the handle housing 21, one end of the connecting rod 222a located inside the handle housing 21 is fixed to the abutting head 223a, the abutting head 223a abuts against the abutting table, and one end of the connecting rod 222a located outside the handle housing 21 extends to form a button.

In the above embodiment, the limiting member 25 includes a roller 251a, a roller link 252a, a wedge 253a, and a lifting fork 254a, the roller link 252a is disposed through the handle housing 21, one end of the roller link 252a located outside the handle housing 21 is fixed to the roller 251a, one end of the roller link 252a located inside the handle housing 21 is coaxially fixed to the wedge 253a, one end of the lifting fork 254a is fixed to an inner wall of the handle housing 21 and abuts against an outer circumferential surface of the steel column 244a, and the other end of the lifting fork 254a abuts against an outer surface of the wedge 253 a; the rotating wheel 251a rotates to drive the wedge-shaped block 253a to rotate, and the steel column 244a is driven to lift in the vertical direction through the lifting fork 254 a.

In the use process of the embodiment, when the button is pressed, the abutting head 223a abuts against the abutting table to push the outer ring 242a to rotate; under the action of friction force, the steel column 244a abuts against the notch 245a, and since the inner ring 241a is fixed relative to the handle housing 21, the outer ring 242a cannot rotate any further, so that the effect of tightening part of the second cable is achieved. When the second cable needs to be further tightened, the rotating wheel 251a is rotated, the rotating wheel 251a rotates to drive the wedge-shaped block 253a to rotate, the lifting fork 254a drives the steel column 244a to move towards the abutting spring 243a, and the steel column 244a is separated from the abutting state with the inner wall of the notch 245 a; at this point, continuing to press the button, the outer ring 242a can be rotated further, enabling further tightening of the second cable. When the second cable needs to be released, the button is released and the wheel 251a is rotated in the reverse direction.

As shown in fig. 13-15, in another embodiment, the driving member 22 includes a hinge plate 221b, a driving rod 222b and a fixing bar 223b, the hinge plate 221b is hinged to the inner wall of the handle housing 21, the driving rod 222b is disposed through the hinge plate 221b, one end of the driving rod 222b is located outside the handle housing 21, one end of the driving rod 222b located inside the handle housing 21 is fixed to the fixing bar 223b, and one end of the driving rod 222b located outside the handle housing 21 extends to form a button.

In the above embodiment, the displacement member 24 includes a displacement steel plate 241b, and a lever 242b, one end of the displacement steel plate 241b is fixed to the fixing bar 223b, the other end is fixed to the limiting member 25, one end of the lever 242b is hinged to the displacement steel plate 241b, the other end is fixed to the second cable, and the middle of the lever 242b is hinged to the inner wall of the handle housing 21; when the button is pressed, the displacement steel sheet 241b drives one end of the lever 242b to move, and the lever 242b and one end, fixed to the second cable, move along with the movement, so that the effect of pulling the second cable is achieved.

In the above embodiment, the limiting member 25 includes a limiting block 251b and a sliding head 252b, the sliding head 252b is fixed to an end of the displacement steel sheet 241b away from the fixing bar 223b, the anti-limiting block 251b is provided with an anti-elastic groove 253b, a sliding rod extends from a side wall of the sliding head 252b, and the sliding rod is embedded in the anti-elastic groove 253b and can slide along the anti-elastic groove 253 b.

In the above embodiment, the bounce groove 253b includes a first sliding section 254b, a second sliding section 255b, a first connecting section 256b and a second connecting section, the first sliding section 254b, the first connecting section 256b, the second sliding section 255b and the second connecting section are connected end to end, a first narrow opening 257b for accommodating the sliding rod is formed at the connection position of the first sliding section 254b and the first connecting section 256b, and a second narrow opening for accommodating the sliding rod is formed at the connection position of the second sliding section 255b and the second connecting section; the first connecting section 256b has an axis parallel to the axis of the slider 252b when the slide bar is in the first slot 257b, and the second connecting section has an axis parallel to the axis of the slider 252b when the slide bar is in the second slot.

In the use of the above embodiment, when the button is pressed, the sliding rod slides along the first sliding section 253b and falls into the first narrow opening 256b, and since the sliding rod is received in the first narrow opening 256b, the button is released and the sliding rod stays in the first narrow opening 256 b; when the button is pressed again, because the axis of the first connecting section 255b is parallel to the axis of the sliding head 252b at the moment, the sliding rod enters the first connecting section 255b along the force-bearing direction and slides into the second narrow opening along the first connecting section 255b and the second sliding section 254b when the button is pressed; when the button is released, the sliding rod stays in the second narrow opening; when the button is pressed again, since the axis of the second connecting section is parallel to the axis of the sliding head 252b at the same time, when the button is pressed, the sliding rod enters the second connecting section along the force-bearing direction, slides into the first narrow opening along the second connecting section and the first sliding section 253b, and reciprocates in this way. The final effect is that, when the button is pressed, the second cable is tightened, and when the button is pressed again, the second cable is released.

The unlimited rolling handle structure has the following advantages: the thumb wheel structure and the base structure can roll without limit, so that the continuous rolling of 360 degrees can be realized, and the adjustment handle is not required to stop in the rotating process.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An unlimited roll handle structure, comprising:

a base structure;

2. The unlimited roll handle structure of claim 1, wherein said cable adapter comprises a cylindrical sliding member and a rotating member, an outer wall of said sliding member is in sliding contact with an inner wall of said receiving cavity, and said rotating member is disposed in said sliding member.

3. The unlimited roll handle structure of claim 2, wherein the cable comprises a first cable and a second cable, the first cable passing through the wire entry hole and being connected to the slider member, the second cable having one end connected to the rotating member and another end connected to the base structure.

4. The unlimited roll handle structure of claim 3, wherein the rotating member has a first rotating portion and a second rotating portion, the first rotating portion is rotatably connected to the second rotating portion, the first rotating portion is fixedly mounted on the end of the sliding member away from the wire inlet, and the second rotating portion is fixed to the end of the wire cable.

5. The unlimited roll handle structure of claim 4, wherein said slider defines an arcuate through-hole at an end thereof adjacent said wire entry aperture for receiving said first cable.

6. The unlimited roll handle structure of claim 1, wherein the thumb wheel structure further comprises a thrust bearing, the base structure and the thumb wheel housing being rotationally coupled by the thrust bearing.

7. The unlimited roll handle structure of claim 1, wherein the base structure comprises a handle housing, a driving member, a displacement member and a limiting member, the handle housing is rotatably connected with the thumb wheel housing, the displacement member is disposed in the handle housing and rotatably connected with the inner wall of the handle housing, one end of the second cable, which is far away from the rotating member, is connected with the displacement member, one end of the driving member is connected with the displacement member, the other end of the driving member passes through the handle housing and is used for driving the displacement member to move relative to the handle housing, so that the length of the part of the second cable, which is located in the handle housing, is changed; the limiting piece is abutted with the displacement piece and can controllably limit the unidirectional movement of the rotating piece.

8. The unlimited roll handle structure of claim 7, wherein the driving member comprises a handle and an arcuate link, the handle being hingedly connected at one end to the handle housing and at another end to one end of the arcuate link, the arcuate link being hingedly connected at another end to the displacement member.

9. The unlimited roll handle structure of claim 8, wherein the displacement member has a mounting slot, the displacement member has an arcuate through hole, the mounting slot has a protrusion forming a rotating shaft, the handle has a receiving slot on a side thereof adjacent to the rotating member, the rotating member partially extends into the receiving slot, the arcuate link is disposed in the mounting slot, and has an end fitted over the rotating shaft, and the other end of the arcuate link is movably connected to the handle.

10. The unlimited roll handle structure of claim 7, wherein the surface of the displacement member extends axially to form a boss, a winding track is provided along the circumference of the boss, and the second cable entering the base structure is wound on the winding track.

11. The unlimited roll handle structure of claim 7, wherein said displacement member is disc-shaped and has a control track along its circumference, and said limiting member abuts against said control track and controllably limits the rotation of said rotation member in one direction.

12. The unlimited roll handle structure of claim 11, wherein the control track is a bump track, the bump track includes an arc-shaped slideway circumferentially arranged along the outer circumferential surface of the rotating member and a plurality of protrusions or a plurality of grooves uniformly arranged along the arc-shaped slideway, the limiting member includes a limiting portion, an elastic portion and a control portion, one end of the limiting portion is hinged to the inner wall of the handle housing, one end of the elastic portion is connected to the limiting portion and generates elastic force to drive the limiting portion to rotate forward until the other end of the elastic portion abuts between two adjacent protrusions or in the grooves, one end of the control portion is connected to the limiting portion, and the other end of the control portion protrudes from the handle housing and is used for driving the limiting portion to rotate backward until the other end of the limiting portion disengages from the rotating member.

13. The unlimited roll handle structure of claim 12, wherein the control portion comprises a wheel disc, a rotating rod, and a lever, one end of the rotating rod is fixed with the wheel disc, the surface of the other end of the rotating rod is partially protruded to form a cam, the middle portion of the lever is hinged with the handle housing, one end of the lever abuts against the cam, and the other end of the lever abuts against the limiting portion.

14. The unlimited roll handle structure of claim 11, wherein the control track comprises a salient point track and a smooth track, which are arranged side by side, the salient point track comprises an arc-shaped slideway arranged along the circumferential direction of the outer circumferential surface of the rotating member and a plurality of protrusions or a plurality of grooves uniformly arranged along the arc-shaped slideway, the smooth track is a curved slideway, the stroke starting end of the curved slideway protrudes out of the salient point slideway, and the stroke end of the curved slideway is in smooth transition with the slideway, the smooth track gradually increases from the stroke starting end to the stroke end, and the width of the salient point track gradually decreases from the stroke starting end to the stroke end; the limiting part comprises a limiting part and an elastic part, one end of the limiting part is hinged to the inner wall of the handle shell, the acting end of the elastic part is connected with the limiting part and generates elastic force for driving the limiting part to translate from the salient point rail to the smooth rail and elastic force for driving the limiting part to rotate until the other end of the limiting part abuts against the control rail.

15. The unlimited roll handle structure of claim 7, wherein one end of the displacement member is movably connected to the inner wall of the handle housing, the other end of the displacement member is provided with a plurality of wave-shaped teeth for clamping, the driving member is disposed on the displacement member and at least partially penetrates through the handle housing, the limiting member is partially extended to form a protrusion part near the wave-shaped teeth, the protrusion part is similar to the wave-shaped teeth in shape and has two states of engaging with or disengaging from the wave-shaped teeth, and the limiting member partially extends to the outside of the handle housing to form an operating end for switching the state of the protrusion part.

16. The unlimited roll handle structure of claim 15, wherein the limiting member comprises a steel plate with elasticity, a fixing portion and a displacement spring, one end of the steel plate far away from the displacement member is fixed with the fixing portion, the protrusion is disposed on one side of the steel plate facing the displacement member, one end of the displacement spring is fixed with one end of the fixing portion, the other end of the displacement spring is fixed with the inner wall of the handle housing, the expansion direction of the displacement spring is perpendicular to the inner wall of the handle housing, the other end of the fixing portion is movably inserted into the handle housing, and the operation end is disposed on the end portion of the fixing portion outside the handle housing.

17. The unlimited roll handle structure of claim 16, wherein an end of the displacement member proximate the limiting member extends to form an anti-backup abutment that abuts a face of the blade facing away from the displacement member.

18. The unlimited roll handle structure of claim 7, wherein the displacement member comprises an inner ring, an outer ring, a contact spring and a steel column, the inner ring is fixed to the inner wall of the handle housing, the outer ring is movably sleeved on the outer circumferential surface of the inner ring, a notch is formed in the edge of the inner ring, the steel column is arranged in the notch in a penetrating manner, the circumferential surface of the contact spring is in contact with the inner ring surface of the outer ring, one end of the contact spring is fixed to the inner wall of the notch, the other end of the contact spring is radially fixed to the steel column, a track for winding the second cable is formed on the outer circumferential surface of the outer ring, and the outer ring extends radially to form a contact platform which is in contact with the driving member.

19. The unlimited roll handle structure of claim 18, wherein the driving member comprises a fixing block, a connecting rod and an abutting head, the fixing block is fixed to the inner wall of the handle housing, the connecting rod is disposed through the fixing block, one end of the connecting rod is located outside the handle housing, one end of the connecting rod located inside the handle housing is fixed to the abutting head, the abutting head abuts against the abutting table, and one end of the connecting rod located outside the handle housing extends to form a button.

20. The unlimited roll handle structure of claim 19, wherein the limiting member comprises a wheel, a wheel connecting rod, a wedge and a lifting fork, the wheel connecting rod is inserted into the handle housing, one end of the wheel connecting rod outside the handle housing is fixed to the wheel, one end of the wheel connecting rod inside the handle housing is fixed to the wedge coaxially, one end of the lifting fork is fixed to the inner wall of the handle housing and abuts against the outer circumferential surface of the steel column, and the other end of the lifting fork abuts against the outer circumferential surface of the wedge.

21. The unlimited roll handle structure of claim 7, wherein the driving member comprises a hinge plate, a driving rod and a fixing bar, the hinge plate is hinged to the inner wall of the handle housing, the driving rod is inserted through the hinge plate, one end of the driving rod is located outside the handle housing, one end of the driving rod located inside the handle housing is fixed to the fixing bar, and one end of the driving rod located outside the handle housing extends to form a button.

22. The unlimited roll handle structure of claim 21, wherein the displacement member comprises a displacement steel plate, a lever, one end of the displacement steel plate is fixed with the fixing strip, the other end of the displacement steel plate is fixed with the limiting member, one end of the lever is hinged with the displacement steel plate, the other end of the lever is fixed with the second cable, and the middle of the lever is hinged with the inner wall of the handle housing.

23. The unlimited roll handle structure of claim 22, wherein the limiting member comprises a limiting block and a sliding head, the sliding head is fixed to an end of the displacement steel sheet far away from the fixing strip, the anti-limiting block is provided with an anti-bouncing groove, a sliding rod extends out from a side wall of the sliding head, and the sliding rod is embedded in the anti-bouncing groove and can slide along the anti-bouncing groove.

24. The unlimited roll handle structure of claim 23, wherein said bounce channel comprises a first sliding section, a second sliding section, a first connecting section and a second connecting section, said first sliding section, said first connecting section, said second sliding section and said second connecting section are in end-to-end communication, a first slot for receiving said sliding bar is formed at a junction of said first sliding section and said first connecting section, and a second slot for receiving said sliding bar is formed at a junction of said second sliding section and said second connecting section; the axis of the first connecting section is parallel to the axis of the sliding head when the sliding rod is in the first narrow opening, and the axis of the second connecting section is parallel to the axis of the sliding head when the sliding rod is in the second narrow opening.