CN212395133U - Driving device - Google Patents

Abstract

The utility model provides a driving device, belonging to the technical field of medical instruments, comprising a driving mechanism arranged on a shell; a locking mechanism provided on the housing; a linkage member; the utility model provides a driving device, the casing is equipped with actuating mechanism, locking mechanical system and linkage part, the linkage part has first locking state and second locking state, and the linkage part can switch over between first locking state and second locking state, the first locking state can make driven piece take place to slide relative to the linkage part, accomplish the sliding adjustment of driven piece; the second locking state can enable the driving mechanism, the linkage part, the driven part and the driving mechanism to synchronously rotate, the angle adjustment of the driven part is completed, the linkage part only needs to operate the driving mechanism in the switching of the first locking state and the second locking state, and the position or the angle adjustment of the driven part can be completed.

Description

Driving device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to drive arrangement.

Background

The heart valve disease is a common heart disease in China, and the replacement of the artificial heart valve is a main means and the most effective way for treating the heart valve disease. When the artificial heart valve replacement is carried out, an interventional operation is needed, the far end of an outer tube in the interventional operation needs to reach the center of the valve, and then the carried heart valve replacement device is released, so that the heart valve replacement device can replace the valve of the heart valve to perform functions.

In the prior art, a conveying system is generally adopted to convey a valve sleeved on an inner tube to a valve position to be treated, and fine adjustment is performed on the valve, namely, the inner tube is driven to rotate or the inner tube is driven to move axially; the other set of driving mechanism is used as a rotating mechanism for driving the inner pipe to rotate along the axial direction of the inner pipe, and the rotating mechanism is fixedly arranged on the transferring mechanism, so that the transferring mechanism drives the rotating mechanism and the inner pipe to move synchronously, and the rotating mechanism drives the inner pipe to rotate. In view of the limited space of the shell in the conveying system, the conveying system is complex in structure and large in occupied space due to the arrangement of two sets of driving mechanisms.

In the prior art, not only a valve conveying system, but also other structures are provided, and two sets of driving mechanisms are respectively arranged in a driving device for driving a driven part to rotate and slide, so that the driving device is complex in structure and large in occupied space.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that the driving device needs to set up the actuating mechanism of two sets to drive when being rotated and slided by the driving piece among the overcome prior art, the structure is complicated, the space that occupies to provide a driving device.

In order to solve the above technical problem, the utility model provides a driving device, include

The driving mechanism is arranged on the shell;

a locking mechanism provided on the housing;

the linkage component is movably arranged on the shell in a switching way between a first locking state and a second locking state; which is adapted to be connected to the driven member in a slidable and anti-rotational manner;

in a first locking state, the linkage part is locked on the shell by a first blocking force exerted by the locking mechanism, and the driving mechanism drives the driven part to slide relative to the linkage part; in a second locking state, the first blocking force is removed, the linkage part is driven by a dialing force to move so as to be locked on the driving mechanism, and the linkage part is driven by the driving mechanism to drive the driven part to synchronously rotate; in the first locking state the toggle force is withdrawn.

As a preferable technical solution, the locking mechanism includes a locking member provided on the housing, and the locking member applies the first blocking force to the link member by a telescopic movement;

in a first locking state, the locking piece is locked with the linkage part; in a second locked state, the locking member is separated from the linkage member;

the locking member is biased by a return bias to tend to remain in the first locked condition.

As a preferable technical scheme, in the surfaces of the locking piece and the linkage part facing each other, at least one first protrusion is arranged on one surface, and first clamping grooves corresponding to the first protrusions one to one are arranged on the other surface;

in a first locking state, the first protrusion is in insertion fit with the first clamping groove; in a second locked state, the first protrusion is separated from the first card slot.

As a preferable technical solution, in a first locking state, the locking piece is sleeved outside the distal end of the linkage component, one of the first protrusion and the first slot is provided on an inner wall surface of the locking piece, and the other is provided on an outer wall surface of one end of the linkage component;

the operating end of locking piece stretches out outside the first hole of stepping down that is equipped with on the casing, just the locking piece is radial concertina movement along the inner tube.

As a preferred technical solution, the driving mechanism comprises an operating part movably arranged on the housing between a first state and a second state, and a transition piece fixedly connected with the driven piece;

in the first state, the operating part and the transition piece move synchronously to drive the driven part to slide, and the linkage part is in the first locking state; in the second state, the linkage part is driven by the dialing power to move so as to be locked on the transition piece, and then driven by the operation part to drive the driven part to rotate so as to be in the second locking state.

As a preferred technical solution, the operating member is slidably and rotatably provided on the housing, and the operating member is slidably and rotatably connected with the transition piece;

the driving mechanism further comprises a motion conversion piece which is arranged on the transition piece in a linkage mode, and the motion conversion piece is fixedly connected to the driven piece and used for converting the rotary motion of the transition piece into linear sliding motion;

in a first state, the operating part drives the transition piece to rotate, the motion conversion piece is driven to slide on the transition piece in a linkage mode, the far end of the linkage part is locked on the locking piece, and the near end of the linkage part faces the transition piece;

in a second state, the operating part slides relative to the transition piece to apply shifting power to the matching body, the linkage part is driven by the shifting power to slide towards the transition piece and is locked on the transition piece, and the linkage part is driven by the synchronous rotation of the operating part and the transition piece to drive the driven part to rotate.

As a preferred technical scheme, a matching body is arranged on the linkage part; the operating component is provided with a poking body;

the poking body is connected with the matching body in a rotatable and anti-slip mode, and in the second state, the operating part slides to apply poking force to the matching body through the poking body;

the matching body is arranged on the linkage part in a non-slip and rotatable manner;

the matching body is driven by the toggle force to synchronously slide relative to the shell; the linkage part is driven by the synchronous rotation of the operation part and the transition piece to rotate relative to the matching body.

As a preferred technical scheme, the matching body comprises an annular pull ring and a matching bulge which is arranged outside the pull ring in a protruding mode in the radial direction;

the far end of the operating component is sleeved outside the near end of the shell, and the poking body is a first annular sliding groove arranged on the inner wall surface of the operating component;

the linkage part is positioned in the shell, and the pull ring is rotatably sleeved in a second annular sliding groove on the periphery of the linkage part; the matching protrusion penetrates through a second yielding hole formed in the shell and is rotatably inserted into the first annular sliding groove, and the pulling force is applied to slide in the second yielding hole.

Preferably, the proximal end of the transition piece is rotatably and non-slidably disposed within the housing, and the distal end of the transition piece is disposed within the interior cavity of the operating member.

As a preferred technical solution, the device further comprises at least one first elastic member arranged between the transition member and the operating member;

in a second state, the first elastic piece releases energy to apply biasing force to the operating part to drive the linkage part to slide towards the direction of the transition piece;

and/or the locking mechanism is arranged in the shell and is used for arranging the linkage part on the shell in a rotation-proof way in a first locking state.

As a preferred technical scheme, the anti-rotation mechanism comprises

The rotation stopping seat is arranged in the shell; the second protrusions are arranged on one end face of the linkage component and the rotation stopping seat, and the second clamping grooves which are in one-to-one correspondence with the second protrusions and matched with the second protrusions in an inserting mode are arranged on the other end face of the linkage component and the rotation stopping seat;

in a first locking state, the second protrusion is inserted into the second clamping groove; in a second locked state, the second protrusion is disengaged from the second catch.

As a preferred technical scheme, one end face of the mutually facing end faces of the linkage part and the transition piece is provided with a third protrusion, and the other end face is provided with a third clamping groove which is in one-to-one correspondence with the third protrusion and is matched with the third protrusion in an inserting manner;

in the second locking state, the third protrusion is inserted into the third clamping groove, and in the first locking state, the third protrusion is separated from the third clamping groove.

As a preferable technical solution, the end surface not provided with the second protrusion or the third protrusion is provided with a plurality of linear elastic members arranged on the same circumference;

and under the respective locking state, at least one linear elastic piece retracts and deforms under the extrusion force of the corresponding protrusion, and a clamping groove is formed between the retracted linear elastic piece and the adjacent non-retracted linear elastic piece in a surrounding manner and is used for the insertion and matching of the protrusion.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a driving device, be equipped with actuating mechanism, locking mechanical system and linkage part on the casing, the linkage part has first locking state and second locking state, and the linkage part can switch over between first locking state and second locking state, and locking mechanical system exerts first barrier force to the linkage part, makes the linkage part lock on the casing, and the linkage part is in first locking state this moment, and when actuating mechanism driven piece, driven piece relative linkage part takes place to slide, accomplishes the sliding adjustment of driven piece; when the linkage part switches to the second locking state, locking mechanism no longer exerts first barrier force to the linkage part, make the linkage part can move in the casing, to locking on actuating mechanism, drive actuating mechanism this moment, the linkage part, by the synchronous rotation of driving piece and actuating mechanism, accomplish the angle modulation by the driving piece, the linkage part is in the switching of first locking state and second locking state, only need set up one set of actuating mechanism, only need operate this actuating mechanism alright with the position or the angle modulation of accomplishing by the driving piece, this drive arrangement simple structure, the operation of being convenient for.

2. The utility model provides a drive arrangement, locking mechanical system is including establishing the locking piece on the casing, and the locking piece can exert first power that stops to the linkage part through concertina movement, and the locking piece receives the effect of reset bias pressure and keeps at the locking state to the linkage part, and drive locking piece is concertina movement, can remove the locking to the linkage part, makes the linkage part can follow first locking state and remove to second locking state, and the linkage part of being convenient for carries out the state switching.

3. The utility model provides a drive arrangement, locking piece and linkage part realize the control to linkage part state through first arch and first draw-in groove, and when first arch was pegged graft to in the first draw-in groove, linkage part was in first locking state, and when first arch broke away from first draw-in groove, linkage part can move to the second locking state from first locking state; the first protrusion can be arranged on the locking piece, the first clamping groove is arranged on the surface of the linkage part, and the first protrusion corresponds to the first clamping groove in position, so that the first protrusion can be inserted into the first clamping groove conveniently; the locking piece has the operation end, and outside the first hole of stepping down of operation end stretching out the casing to operating personnel operated linkage part's state outside the casing switches.

4. The utility model provides a driving device, actuating mechanism include operating element and transition piece, and operating element has first state and second state, and when operating element was in the first state, the linkage part was in first locking state, and operating element and transition piece synchronous motion drive driven piece slip, accomplish the position control of driven piece; when the operating component is in the second state, the shifting power is applied to the linkage component, so that the linkage component moves from the first locking state to the second locking state, and further when the operating component is operated, the transition piece and the linkage component synchronously rotate, at the moment, the driven piece and the transition piece synchronously rotate to complete the angle adjustment of the driven piece, and an operator can conveniently control the operating component and further adjust the position and the angle of the control driving device.

5. The utility model provides a driving device, operating element and transition piece slidable and rotatable coupling, actuating mechanism includes the motion conversion piece, the motion conversion piece passes through threaded connection on the transition piece, by the driving piece with the motion conversion piece is connected, operating element is when the first state, the linkage part is in first locking state, at this moment, rotate the operating element, the transition piece rotates with operating element is synchronous, the linkage part neither rotates nor removes, the transition piece makes the motion conversion piece slide in the pivoted, and then drive the driven piece and slide, change the position of driven piece; when the operating part is in the second state, the stirring body of the operating part applies stirring power to the matching body of the linkage part to enable the linkage part to move from the first locking state to the second locking state, at the moment, the operating part is rotated, the transition piece and the linkage part rotate synchronously with the operating part, the linkage part drives the driven piece to rotate synchronously, the driven piece and the motion conversion piece do not slide relatively, the angle of the driven piece is adjusted, and an operator can further control the driving device easily.

6. In the driving device provided by the utility model, the operating part is sleeved outside the linkage part, the stirring body is arranged on the inner wall of the operating part, and the matching body is arranged on the linkage part in a protruding way, so as to be convenient for matching with the stirring body; the transition piece is internally provided with an internal thread, the motion conversion piece is installed on the internal thread of the transition piece in a matching manner, when the transition piece rotates, the motion conversion piece can be driven to slide under the action of the thread, and meanwhile, the driving device can be driven to have higher sliding accuracy through the thread matching.

7. The utility model provides a driving device, rotatable cooperation body that is equipped with on the linkage part, cooperation body block in the first annular spout on the linkage part, make the linkage part can rotate in the cooperation body, and slide with the cooperation body is synchronous, cooperation protruding block of cooperation body in the second annular spout of operating element, make the cooperation body can rotate in first annular spout, and slide with the operating element is synchronous, make in first lock state, when rotating the operating element, the linkage part is not influenced; in the second locking state, when the operation part is slid, the linkage part and the operation part synchronously slide and are locked on the transition piece under the action of the matching body, and finally, under the driving of synchronous rotation of the operation part and the transition piece, the linkage part rotates relative to the matching body and drives the driven part to rotate.

8. The utility model provides a driving device, the first locking state is realized by the insertion arrangement of the linkage part and the locking part, so that the linkage part is fixed when the operation part rotates; the second locking state realizes the locking of the linkage part and the transition piece through the insertion connection of the linkage part and the transition piece, so that the linkage part is driven to rotate synchronously when the operation part and the transition piece rotate synchronously, and the linkage part is in different locking states when the linkage part, the locking piece and the transition piece are respectively inserted and connected, so that different operations on the driven piece can be completed, namely the axial displacement or the circumferential angle of the driven piece is adjusted.

9. The utility model provides a driving device, be equipped with on the casing and end the seat, on the relative terminal surface of seat and linkage part that ends, be equipped with second arch and second draw-in groove, on the relative terminal surface of linkage part and transition piece, be equipped with third arch and third draw-in groove, make the linkage part when first locking state through the cooperation of second arch and second draw-in groove, set up on the casing with preventing rotating, can not drive along with the rotation of linkage part; the cooperation of third arch and third draw-in groove realizes under the second locking state, and linkage part and transition piece are prevented changeing ground and are locked, are convenient for under the rotatory drive of operating element and synchronous rotation.

10. The utility model provides a drive arrangement does not set up in seat, linkage part and the transition piece that splines and is equipped with the linear elastic component of arranging on same circumference on protruding terminal surface of second arch and third, and linear elastic component can return when receiving the extrusion and contract, and the linear elastic component that contracts returns and adjacent linear elastic component that does not contract enclose into the draw-in groove, with protruding cooperation joint, make protruding joint with the draw-in groove all can be accomplished at arbitrary angle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a driving device provided by the present invention;

FIG. 2 is a schematic view of the internal structure of the driving device;

FIG. 3 is an exploded view of the linkage assembly and housing;

FIG. 4 is a schematic view of the connection of the locking member to the linkage member;

FIG. 5 is a second angular connection of the locking member to the linkage member;

FIG. 6 is a schematic view of the locking member being connected to the housing;

FIG. 7 is a schematic view of the connection between the dial body and the mating body;

FIG. 8 is a cross-sectional view of the linkage member;

FIG. 9 is a schematic view of the mounting of the stop swivel and transition piece;

FIG. 10 is a schematic structural view of the linkage member in a first locked state;

FIG. 11 is a schematic view of the linear elastic member in a first locked state of the linkage member;

FIG. 12 is a structural schematic view of the linkage member in a second locked condition;

FIG. 13 is a schematic view of the linear spring acting when the linkage member is in the second locked state.

Description of reference numerals:

1. a housing; 2. stopping the rotation seat; 3. a transition piece; 4. a motion conversion member; 5. a driven member; 6. an operating member; 7. a linkage member; 71. a first annular seat; 711. a third mounting hole; 72. a second annular seat; 721. a fourth mounting hole; 8. a second protrusion; 9. a third protrusion; 10. a linear elastic member; 11. a locking member; 12. a first elastic member; 13. a first protrusion; 14. a first card slot; 15. a first mounting hole; 16. a dial body; 17. a mating body; 171. a pull ring; 172. a mating protrusion; 18. an operation end; 19. a second mounting hole; 20. an arc-shaped limiting strip; 21. a first abdicating hole; 22. a radian limiting strip; 23. an annular outer rim; 24. a limiting block; 25. a second abdicating hole; 26. a first annular chute; 27. a second annular chute.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific 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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The present embodiment provides a specific embodiment of a drive device, as shown in fig. 1 to 10, which includes a housing 1, a drive mechanism, a lock mechanism, and a link member 7.

Example 1

The present embodiment provides a driving device, as shown in fig. 1, which includes a housing 1, and a driving mechanism, a locking mechanism and a linkage member 7 disposed on the housing 1, wherein the linkage member 7 is movably disposed on the housing 1 in a switchable manner between a first locking state and a second locking state; the linkage part 7 is sleeved on the driven part 5 in a sliding and rotation-proof manner; as shown in fig. 2, two opposite first straight surfaces are arranged on the outer wall surface of the driven member 5, second straight surfaces corresponding to the first straight surfaces one to one are arranged on the inner hole wall of the linkage member 7, and the linkage member 7 and the driven member 5 are connected in a rotation-preventing and sliding manner under the cooperation of the first straight surfaces and the second straight surfaces. The number of the first flat surfaces may be one, and correspondingly, the number of the second flat surfaces may be one.

In the first locking state, the linkage part 7 is locked on the shell 1 by a first blocking force exerted by a locking mechanism, and the driving mechanism drives the driven part 5 to slide relative to the linkage part 7; in the second locking state, the first blocking force is removed, the linkage part 7 is driven by the dialing force to move so as to be locked on the driving mechanism, and the driven part 5 is driven by the first driving mechanism to synchronously rotate.

In this embodiment, the driven member 5 is optionally a torsion tube, and an inner tube is fixed in the torsion tube, and the sliding and rotating of the inner tube can be adjusted by a driving mechanism.

As shown in fig. 3 and 4, the locking mechanism includes a locking member 11 and a return spring, the locking member 11 is moved telescopically in the radial direction of the housing 1 to apply a first blocking force to the interlocking member 7, as shown in fig. 4, a first mounting hole 15 is provided in the locking member 11, the return spring is mounted in the first mounting hole 15, and the locking member 11 is biased by the return bias force to tend to be held in the first locking state.

As shown in fig. 2, a limiting block 24 is arranged in the housing 1, the limiting block 24 forms a limiting groove, the locking member 11 is slidably mounted in the limiting groove through the clamping blocks at two sides, so that the locking member 11 can complete the telescopic action in the housing 1, as shown in fig. 3, the locking member 11 is sleeved outside the far end of the linkage component 7, a first protrusion 13 is arranged on the inner wall surface of the locking member 11, and an annular first clamping groove 14 is arranged on the outer wall surface of the linkage component 7; the inside end of the locking member 11 extends into the housing 1, as shown in fig. 5, the outside end of the locking member 11 as an operation end 18 extends into the first avoiding hole 21 on the housing 1, the operation end 18 is provided with a button, and the button is located on the housing 1 and arranged in an annular retainer ring at the periphery of the first avoiding hole 21.

Both side walls of the locking member 11 are respectively provided with a first mounting hole 15 along the radial direction of the inner pipe. Optionally, the number of the return springs is two, the return springs are installed in the first installation holes 15 in a one-to-one correspondence manner, one end of each return spring is located in the first installation hole 15, the other end of each return spring extends out of the first installation hole 15 and is connected to the housing 1, each return spring is a compression spring, and each return spring applies an upward return biasing force to the locking member 11, in this embodiment, the return biasing force serves as a first blocking force, so that the first protrusion 13 is clamped in the first clamping groove 14, the linkage part 7 is radially limited on the locking member 11 along the housing 1 and further limited on the housing 1, and the linkage part 7 is in the first locking state.

When the doctor presses the button downward in fig. 3, the reset biasing force is overcome, the first protrusion 13 is withdrawn from the first notch 14, the first blocking force is released, the linkage part 7 and the locking member 11 are in an unlocked state, and the linkage part 7 can slide axially along the inner tube relative to the locking member 11.

The distal end of the operating member 6 is fitted over the proximal end of the housing 1, the linkage member 7 is disposed within the proximal end of the housing 1, the distal end of the transition piece 3 is disposed within the housing 1, and the proximal end thereof is disposed within the lumen of the operating member 6.

The distal end of the transition piece 3 is arranged in the proximal end inner cavity of the shell 1 in a slip-proof manner, as shown in fig. 8, two radian limiting strips 22 are arranged on the proximal end inner wall of the shell 1, two annular outer edges 23 are arranged on the proximal end outer wall of the transition piece 3, the two annular outer edges 23 are located between the two radian limiting strips 22, and the two annular outer edges 23 are respectively abutted against one radian limiting strip 22, so that the transition piece 3 is limited to have sliding displacement in the axial direction, and the transition piece 3 can only rotate along with the operating part 6.

The near-end of transition piece 3 is established in the inner chamber of operating means with slidable and anti-rotation, as shown in fig. 6 and 7, be equipped with two guide protrusion on the outer wall of transition piece, the axis both sides at transition piece 3 are established to two guide protrusion symmetries, the internal face of operating means 6 is equipped with along the spacing strip 20 of the radial arc that extends of axial arrangement, be equipped with first spout and second spout on two spacing strips 20 of arc respectively, two guide protrusion branches are pegged graft in first spout and second spout, prevent rotating and slidable connection with transition piece 3 and operating means 6.

An annular toggle body 16 is arranged on the inner wall surface of the operating component 6, for example, the toggle body 16 is a first annular sliding groove 26 formed on the inner wall surface of the operating component 6, for example, in fig. 6, the inner wall surface of the operating component 6 is provided with a recessed annular step, a gasket or a retainer ring is arranged on the right side step surface of the annular step, and the first annular sliding groove 26 is formed between the gasket or the retainer ring and the left side step surface of the annular step.

As shown in fig. 3 and 7, a second annular slide groove 27 is provided on the outer wall of the link member 7, and a fitting body 17 is provided on the link member 7 so as to be rotatable and non-slip. For example, the matching body 17 includes a pull ring 171 and a matching protrusion 172, the pull ring 171 is rotatably sleeved on the second annular sliding groove 27 of the linkage component 7, so that the linkage component 7 can rotate in the pull ring 171 and simultaneously slide along with the pull ring 171, thereby realizing rotatable and anti-sliding connection between the operation component and the matching body. The matching protrusion 172 extends out of the second yielding hole 25 on the housing 1 and rotatably extends into the first annular chute 26 of the operating component, the outer end face of the matching protrusion is in clearance fit with the bottom of the first annular chute 26, so that the operating component can be relatively matched with the protrusion to rotate, and the two chute walls of the first annular chute 26 are limited to the axial direction of the matching protrusion, so that the linkage component is connected with the matching body in a rotatable and anti-sliding manner.

As shown in fig. 8, the linking member 7 includes a first annular seat 71 and a second annular seat 72. The proximal end of the first annular seat 71 is fixedly connected with the distal end of the second annular seat 72 in a snap-fit manner, for example, the first annular seat 71 includes a first annular body, a first annular protrusion protruding from the distal end surface of the first annular body; the first annular body is provided with a clamping hole, the far end of the second annular seat 72 is provided with a clamping block protruding in the radial direction, the far end of the second annular seat extends into the first annular seat body, and the clamping block is clamped in the clamping hole; a third mounting hole 711 is formed in the first annular seat 71, a fourth mounting hole 721 is formed in the second annular seat 72, and linear elastic pieces 10 are mounted in the third mounting hole 711 and the fourth mounting hole; the periphery wall of the second annular seat is provided with a second annular sliding groove 27, and the matching body 17 is sleeved in the second annular sliding groove 27.

Alternatively, as shown in fig. 9, the motion conversion member 4 is a first nut fixed outside the torsion tube, the first nut forms a threaded fit with the inner wall surface of the transition member 3 to form a screw rod structure, and the transition member 3 is arranged in linkage with the torsion tube through the first nut.

As an alternative embodiment, the motion conversion member 4 and the transition member 3 may be configured as a gear and rack structure, and the rack is fixedly connected with the torsion tube by rotating the gear, so as to drive the torsion tube to slide along the axial direction.

As shown in fig. 9, further comprises at least one first elastic member 12 provided between the transition piece 3 and the operating member 6; for example, the first elastic member 12 is a tension spring, and in the second state, the first elastic member 12 releases energy to apply a biasing force to the operating member 6 to drive the linkage member 7 to slide toward the transition piece 3. The number of the tension springs is one, two, three and the like, and the specific number is determined according to the requirement and is not limited.

In fig. 9, two side walls of the transition piece 3 are provided with second mounting holes 19, an orifice of the second mounting hole 19 faces the arc-shaped limiting strip 20 on the distal end, a tension spring is arranged in the second mounting hole 19, two ends of the tension spring respectively abut against the hole wall end of the second mounting hole 19 facing the orifice, and the other end of the tension spring abuts against the arc-shaped limiting strip 20, when the operating part 6 slides towards the right in fig. 5 relative to the transition piece 3, a space between the arc-shaped limiting strip 20 and the second mounting hole 19 is increased, the tension spring is stretched to release energy, and the released energy drives the operating part 6 and the linkage part 7 to move towards the right integrally by driving the arc-shaped limiting strip 20.

As shown in fig. 9 and 11, the linkage member 7 is located between the rotation stopper base 2 and the transition piece 3; as shown in fig. 7, in the end surfaces of the linkage component 7 and the rotation stopping seat 2 facing each other, at least one second protrusion 8 is arranged on the end surface of the rotation stopping seat 2, second clamping grooves corresponding to the second protrusions 8 one to one are arranged on the end surface of the linkage component 7, and the second protrusions 8 are in insertion fit with the second clamping grooves, so that in the first locking state, the linkage component 7 is locked by the locking piece 11 and is arranged on the housing 1 in a rotation-proof manner. Meanwhile, one end of the linkage part 7, which is provided with the second clamping groove, abuts against the end face of the stop rotation seat 2, and the axial sliding position of the linkage part 7 is limited.

A clamping groove which is recessed inwards in the radial direction is arranged on the end face of the far end of the linkage part 7, and a plurality of linear elastic pieces 10 which are arranged on the same circumference are arranged on the end face of the linkage part 7;

as shown in fig. 10, in the linkage member 7 in the first locked state, the linear elastic member 10 is deformed by the pressing force of the protrusion of the second protrusion 8, and a second slot is defined between the partially deformed linear elastic member 10 and the adjacent non-deformed linear elastic member 10; as shown in fig. 12 and 13, in the linkage component 7 in the second locking state, the linear elastic member 10 is retracted and deformed by the extrusion force of the third protrusion 9, and a second locking groove or a third locking groove is defined between the retracted linear elastic member 10 and the adjacent non-retracted linear elastic member 10, and is respectively in insertion fit with the second protrusion 8 and the third protrusion 9. Optionally, the linear elastic member 10 is a pogo pin.

It should be noted that: if the second clamping groove and the third clamping groove are not formed by the linear elastic piece 10, when the second locking state is switched to the first locking state, the linkage part 7 needs to rotate first, so that the third clamping groove and the second clamping groove are reset to the corresponding positions in the last first locking state, and the second clamping groove can be in inserted fit with the second protrusion 8 when the linkage part 7 slides towards the rotation stopping seat 2; likewise, when the linkage part 7 is slid toward the transition piece 3 again, the third engaging groove and the third protrusion 9 can be engaged.

The working principle is as follows:

initially, the distal end of the link member 7 is locked to the locking member 11 and is restrained against rotation on the second projection 8 of the anti-rotation seat 2 in the first locked state, and the operating member 6 is in the first state, as shown in fig. 9.

Firstly, as shown in fig. 6, when the operating member 6 rotates, the transition piece 3 is driven to rotate synchronously, and the motion conversion piece 4 which is in threaded fit with the transition piece 3 slides to the near end or the far end of the transition piece 3 on the internal thread of the transition piece, so that the axial displacement of the torsion tube and the inner tube is finely adjusted until the axial displacement is adjusted in place.

Then, the linkage component 7 is switched from the first locking state to the second locking state, the operating component 6 is switched from the first state to the second state, in fig. 3, the button on the locking piece 11 is pressed downwards, the first protrusion 13 is withdrawn downwards from the first slot 14 against the blocking of the biasing force of the return spring, at this time, the second protrusion 8 is still inserted into the second slot, and at this time, the linkage component 7 can slide axially in the torsion tube relative to the locking piece 11; because the operation component is connected with the transition piece in a rotation-preventing and slidable manner, the operation component 6 is pushed rightwards in fig. 11, the distance between the operation component 6 and the transition piece 3 is increased, the tension spring between the operation component and the transition piece releases energy to drive the operation component 6 to slide rightwards, the poking body 16 on the operation component 6 acts on the matching protrusion 172 to drive the matching body 17 and the linkage component 7 to integrally slide rightwards, the matching protrusion 172 slides in the second abdicating hole 25 of the shell until the second protrusion 8 on the rotation-preventing seat 2 exits from the second clamping groove, the correspondingly retracted and deformed elastic needle on the second clamping groove is reset, the distal end of the linkage component 7 completely exits from the inner hole of the locking piece 11, the button is released, the locking piece 11 is reset under the reset biasing force, the second protrusion 8 is kept in the inner hole of the locking piece 11, and meanwhile, the proximal end of the linkage component 7 is directly inserted on the third protrusion, the third bulge 9 is in inserting fit with a third clamping groove formed by the elastic needle, and the linkage part 7 and the transition part 3 form anti-rotation and slidable locking to stop pushing the operation part 6.

Then, the operation part 6 is rotated, the operation part 6 is connected with the transition piece 3 in a rotation-proof and slidable manner, the operation part 6 is connected with the matching protrusion 172 in a rotatable and anti-slip manner, the matching body 17 is connected with the linkage part 7 in a rotatable and anti-slip manner, the operation part 6 drives the transition piece 3 to rotate, the linkage part 7 is locked on the transition piece 3 in a rotation-proof manner, the linkage part 7 is connected with the torsion tube in a rotation-proof manner, the linkage part 7, the torsion tube and the inner tube are synchronously driven to rotate, the motion conversion piece 4 on the torsion tube and the transition piece 3 synchronously rotate, and no relative motion exists between the two; in this process, the first annular groove of the operating member 6 rotates on the engaging protrusion 172, the linking member 7 rotates relative to the pull ring 171, the pull ring 171 and the engaging protrusion 172 are kept in a stationary state on the housing 1 until the rotating angle of the inner tube is adjusted to a proper position, and the rotating of the operating member 6 is stopped. In contrast, the interlocking member 7 is switched from the second locked state to the first locked state by the above-described reverse operation.

That is, in the driving device, since the linkage component 7 is provided, only one driving mechanism needs to be provided to drive the driven member 5 to move and rotate along the axial direction thereof, and two sets of driving mechanisms do not need to be provided to respectively drive the driven member 5 to rotate and slide, so that the driving device is compact in structure and small in occupied space while realizing adjustment of the rotation and the slide of the driven member 5.

Example 2

This embodiment provides a driving apparatus, which is different from the driving apparatus provided in embodiment 1 in that:

for example, the cooperating body 17 can also be connected to the operating element 6 in a non-slip and rotatable manner in other ways. For example, the fitting projection is connected to the inner wall surface of the operation member via a bearing; or the matching bulge is not arranged, the direct pull ring is arranged on the inner wall of the operation part 6 through a bearing, and at the moment, the toggle body 16 and the matching body 17 are combined into a whole, and the whole is the bearing.

Or, as a further variation, when the engaging body 17 and the poking body 16 are provided, the pull ring of the engaging body 17 is directly fixed on the linking member 7, and correspondingly, the engaging protrusion is rotatably provided on the housing 1, or the engaging protrusion is directly inserted into the first annular slot, avoiding the housing 1, and in the first locked state, the operating member 6 can still rotate relative to the engaging protrusion; in the second locked state, when the operating member 6 rotates, the linkage member 7 and the engaging body 17 are synchronously driven to rotate.

Alternatively, as a further modification, the engaging body 17 and the dial body 16 are not provided, and the outer wall surface of the interlocking member 7 and the inner wall of the operating member 6 are directly connected by a bearing.

Example 3

This embodiment provides a driving device, which is different from the driving devices provided in embodiments 1 and 2 in that: the driving mechanism is arranged in a manner that, in this embodiment, the operating member 6 is slidably connected with the linking member 7 in a rotation-preventing manner, and the operating member 6 is rotatably connected with the transition piece 3 in a rotation-preventing manner, at this time, the motion conversion piece 4 is not required to be arranged, the driven piece 5 is directly fixed in the inner hole of the transition piece 3, and the linking member 7 is still connected with the driven piece 5 in a rotation-preventing manner in a sliding manner.

In the first state, the operating part 6 directly drives the transition piece 3 to synchronously slide towards the near end or the far end to directly drive the driven piece 5 to slide, so that the fine adjustment of the axial displacement of the driven piece 5 is realized, correspondingly, the linkage part 7 is in the first locking state, the far end of the linkage part is locked on the shell through the matching of the first protrusion and the first clamping groove, and the rotation stopping seat 2 and the second protrusion 8 in the embodiment 1 are not required to be arranged; in the second locking state, the pulling force towards the transition piece 3 needs to be applied to the linkage part 7 independently, for example, an independent operation button is arranged on the shell 1 to directly pull the linkage part 7 to slide, so that the linkage part 7 slides towards the transition piece 3, and the near end of the linkage part 7 is still matched with the far end of the transition piece 3 through the third protrusion 9 and the third clamping groove to form a rotation-proof connection, in the second state, the operation part 6 rotates to simultaneously drive the linkage part 7, the transition piece 3 and the driven piece 5 to synchronously rotate, and the fine adjustment of the axial displacement of the driven piece 5 is realized.

That is, in the first state, the operating member 6 and the transition piece 3 move synchronously to drive the driven member 5 to slide in a linkage manner, and the linkage member 7 is in the first locking state; in the second state, the operating member 6 moves relative to the transition piece 3 and applies a shifting force to the linkage member 7 or is subjected to an external shifting force, and the linkage member 7 is driven by the shifting force to move so as to be locked on the transition piece 3, and is further driven by the operating member 6 to drive the driven member 5 to rotate so as to be in the second locking state.

In addition, the first blocking force in the locking mechanism may not be the return biasing force in embodiment 1, but may be the first blocking force alone, for example, no return spring is provided, or when a return spring is provided, after the first protrusion 13 is inserted into and matched with the first slot 14, the locking member 11 and the linkage member 7 are locked by using other detachable fixing structures, for example, a screw or bolt-nut assembly, or a snap structure, so that in the first locking state, the first blocking force is applied to the linkage member 7. In the second locked state, the first blocking force is cancelled and the link member 7 can slide relative to the locking member 11.

That is, in the first locked state, the interlocking member 7 is locked on the housing 1 by a first blocking force applied by the locking mechanism, and the driving mechanism drives the driven member 5 to slide relative to the interlocking member 7; in the second locking state, the first blocking force is removed, the linkage part 7 is driven by the dialing force to move so as to be locked on the driving mechanism, and the driven part 5 is driven by the driving mechanism to synchronously rotate.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (13)

1. A drive device is characterized by comprising

The driving mechanism is arranged on the shell (1);

a locking mechanism provided on the housing (1);

a linkage member (7) provided on the housing (1) so as to be switchable between a first lock state and a second lock state; which is adapted to be connected to the driven element (5) in a slidable and rotationally fixed manner;

in a first locking state, the linkage part (7) is locked on the shell (1) by a first blocking force exerted by the locking mechanism, and the driving mechanism drives the driven part (5) to slide relative to the linkage part (7); in a second locking state, the first blocking force is cancelled, the linkage part (7) is driven by the toggle force to move so as to be locked on the driving mechanism, and the driven part (5) is driven by the driving mechanism to synchronously rotate; in the first locking state the toggle force is withdrawn.

2. The drive device according to claim 1, characterized in that the locking mechanism comprises a locking member (11) provided on the housing (1), the locking member (11) applying the first blocking force to the linkage member (7) by a telescopic movement;

in a first locking state, the locking piece (11) is locked with the linkage part (7); in a second locked state, the locking member (11) is disengaged from the linkage member (7);

the locking member (11) is biased by a return bias towards being held in the first locking condition.

3. The drive device according to claim 2, characterized in that at least one first protrusion (13) is provided on one of the mutually facing surfaces of the locking member (11) and the interlocking member (7), and first engaging grooves (14) corresponding to the first protrusions (13) are provided on the other surface;

in a first locking state, the first protrusion (13) is in plug fit with the first clamping groove (14); in a second locked state, the first protrusion (13) is separated from the first catch (14).

4. The drive device according to claim 3, characterized in that in a first locking state, the locking member (11) is fitted over the distal end of the link member (7), one of the first projection (13) and the first catching groove (14) is provided on an inner wall surface of the locking member (11), and the other is provided on an outer wall surface of one end of the link member (7);

the operation end (18) of locking piece (11) stretch out outside the first hole of stepping down (21) that is equipped with on casing (1), just the locking piece is along the radial concertina movement of inner tube.

5. The drive arrangement as claimed in any of claims 2 to 4, characterized in that the drive mechanism comprises an operating member (6) movably arranged on the housing (1) between a first state and a second state, and a transition piece (3) fixedly connected to the driven piece;

in the first state, the operating part (6) and the transition piece (3) synchronously move to drive the driven part (5) to slide, and the linkage part (7) is in the first locking state; in the second state, the linkage part is driven by the dialing power to move so as to be locked on the transition piece (3), and then driven by the operation part to drive the driven part to rotate so as to be in the second locking state.

6. The drive device according to claim 5, characterized in that the operating member is slidably and rotatably provided on the housing, the operating member (6) being slidably and rotationally connected with the transition piece (3);

the driving mechanism further comprises a motion conversion piece (4) which is arranged on the transition piece (3) in a linkage mode, and the motion conversion piece (4) is fixedly connected to the driven piece (5) and used for converting the rotary motion of the transition piece into linear sliding;

in a first state, the operating component (6) drives the transition piece (3) to rotate, the motion conversion piece (4) is driven to slide on the transition piece (3) in a linkage manner, the far end of the linkage component (7) is locked on the locking component (11), and the near end of the linkage component faces the transition piece (3);

in the second state, the operating part (6) slides relative to the transition piece (3) to apply shifting force to the matching body (17), the linkage part (7) is driven by the shifting force to slide towards the transition piece (3) and is locked on the transition piece (3), and then the linkage part is driven by the synchronous rotation of the operating part (6) and the transition piece (3) to drive the driven part (5) to rotate.

7. The drive device according to claim 6, characterized in that the linkage member (7) is provided with a fitting body (17); a poking body (16) is arranged on the operating component (6);

the poking body (16) is connected with the matching body (17) in a rotatable and anti-slip mode, and in the second state, the operation part slides to apply poking force to the matching body (17) through the poking body (16);

the matching body (17) is arranged on the linkage part (7) in a non-slip way and can rotate;

the matching body (17) is driven by the toggle force to drive the linkage part (7) to synchronously slide relative to the shell (1); the linkage part (7) is driven by the synchronous rotation of the operation part (6) and the transition piece (3) to rotate relative to the matching body (17).

8. The drive device according to claim 7, characterized in that the engaging body (17) comprises an annular pull ring and an engaging projection projecting radially outside the pull ring;

the far end of the operating component (6) is sleeved outside the near end of the shell (1), and the poking body (16) is a first annular sliding groove (26) arranged on the inner wall surface of the operating component (6);

the linkage part (7) is positioned in the shell (1), and the pull ring is rotatably sleeved in a second annular sliding groove (27) on the periphery of the linkage part (7); the matching protrusion penetrates through a second yielding hole (25) formed in the shell (1) and is rotatably inserted into the first annular sliding groove (26), and the pulling force is applied to slide in the second yielding hole (25).

9. The drive device according to claim 8, characterized in that the proximal end of the transition piece (3) is rotatably and non-slip arranged in the housing (1) and the distal end of the transition piece (3) is arranged in the inner cavity of the operating member (6).

10. The drive arrangement according to claim 6, characterized by further comprising at least one first elastic member (12) provided between the transition piece (3) and the operating member (6);

in a second state, the first elastic piece (12) releases energy to apply a biasing force to the operating member (6) to drive the linkage member (7) to slide towards the transition piece (3);

and/or the locking device also comprises a rotation-preventing mechanism arranged in the shell (1) and used for arranging the linkage part (7) on the shell (1) in a rotation-preventing manner in a first locking state.

11. The drive device of claim 10, wherein the anti-rotation mechanism comprises

A rotation stopping seat (2) arranged in the shell (1); and a second protrusion (8) arranged on one end surface of the mutually facing end surfaces of the linkage part (7) and the rotation stopping seat (2), and a second clamping groove which is in one-to-one correspondence with the second protrusion (8) and is matched with the second protrusion in an inserting manner;

in a first locking state, the second protrusion (8) is inserted into the second clamping groove; in a second locked state, the second protrusion (8) is disengaged from the second catch.

12. The driving device according to claim 11, wherein one of the mutually facing end surfaces of the linkage part (7) and the transition piece (3) is provided with a third protrusion (9), and the other end surface is provided with a third clamping groove which is in one-to-one correspondence with the third protrusions (9) and is in pluggable fit with the third protrusions;

in the second locking state, the third protrusion (9) is inserted into the third clamping groove, and in the first locking state, the third protrusion (9) is separated from the third clamping groove.

13. The drive device according to claim 12, characterized in that said end surface not provided with said second (8) or third (9) projections is provided with a number of linear elastic elements (10) arranged on the same circumference;

at least one linear elastic piece (10) retracts and deforms under the extrusion force of the corresponding protrusion corresponding to the respective locking state, and a clamping groove is formed between the retracted linear elastic piece (10) and the adjacent non-retracted linear elastic piece (10) in a surrounding mode and is used for the insertion and the matching of the protrusion.

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