CN211723421U

CN211723421U - Insert formula locking mechanical system soon

Info

Publication number: CN211723421U
Application number: CN202020155232.5U
Authority: CN
Inventors: 李卫
Original assignee: Beijing And Huaruibo Medical Technology Co ltd
Current assignee: Beijing And Huaruibo Medical Technology Co ltd
Priority date: 2020-02-07
Filing date: 2020-02-07
Publication date: 2020-10-23
Anticipated expiration: 2030-02-07

Abstract

The application provides a formula locking mechanical system inserts soon, locking mechanical system including connect (1), with connect (1) cooperation position sleeve (2) and the suit that use in the outside swing handle (3) of position sleeve (2), connect the assembly in back in the position sleeve can be carried out axial and radial locking by the swing handle to realize the quick-connection of high frequency power device and arm, and, the difficult wearing and tearing of this coupling mechanism's junction.

Description

Insert formula locking mechanical system soon

Technical Field

The application belongs to the field of power machinery parts, and particularly relates to a quick-insertion type locking mechanism.

Background

In the field of robot application, the motion of a robot is generally carried by a mechanical arm on which a power instrument is mounted to implement the motion. For example, an orthopaedic surgical robot performs a cutting operation using a swing saw, and a power swing saw is fixedly mounted on a mechanical arm of the orthopaedic surgical robot to form an integral power device.

Since the mechanical arm and the power tool have different properties such as service life, the power tool may need to be replaced from the mechanical arm frequently, for example, in the above example, the power device composed of the mechanical arm and the power oscillating saw completes the cutting operation on the target object, but the service life of the fast-assembling power tool in the power oscillating saw is far from that of the mechanical arm, so the fast-assembling power tool needs to have a replaceable condition.

In the prior art, the fast-assembly power tool is fixedly arranged on the power swing saw by adopting threaded connection or screw connection, and the fast-assembly power tool needs to be disassembled and replaced by means of a special tool when being replaced, so that the fast-assembly power tool is very complicated and inconvenient.

The prior art also has a split quick connector, but because the oscillating saw has high vibration frequency, the transmission is failed due to the quick abrasion of the joint.

SUMMERY OF THE UTILITY MODEL

For solving easily wearing and tearing inefficacy between mechanisms such as high frequency power device and arm to, traditional connected mode such as threaded connection disassembles loaded down with trivial details inconvenient problem, this application provides a formula locking mechanical system inserts soon, locking mechanical system including connect, with connect the position sleeve that the cooperation was used, install in the outside swing handle of position sleeve, connect the assembly in back in the position sleeve, can be carried out axial and radial locking by the swing handle, thereby realize the quick-connect of high frequency power device and arm, and, the difficult wearing and tearing of this coupling mechanism's junction.

The application aims to provide a quick-insertion type locking mechanism, which comprises a connector 1, a positioning sleeve 2 matched with the connector 1 for use and a rotary handle 3 sleeved outside the positioning sleeve 2, wherein the connector 1 comprises a connecting base 11, a threaded pipe 12 is arranged on one side of the connecting base 11, a connecting pipe 13 is arranged on the other side of the connecting base 11, a guide groove 14 is formed in the connecting pipe 13 along the generatrix direction of the connecting pipe, and at least one axial locking groove 15 is formed in the groove wall of the guide groove 14; the positioning sleeve 2 comprises a locking part 21 and an external connecting part 22, wherein the locking part 21 is cylindrical, the inner diameter of the locking part 21 is matched with the outer diameter of the connecting pipe 13, the locking part 21 is provided with a positioning pin 141 matched with the guide groove 14, and the locking part 21 is also provided with a U-shaped groove 151 matched with the axial locking groove 15; a locking pin 152 matched with the axial locking groove 15 is arranged on the rotary handle 3, and an elastic reset piece 4 is arranged between the rotary handle 3 and the positioning sleeve 2.

In an achievable manner, the guide groove 14 increases in width from the middle to the free end.

Further, an inclined table 16 is arranged between the groove wall of the guide groove 14 and the free end face of the connecting pipe 13, and the height of the inclined table 16 is not less than the depth of the groove bottom of the axial locking groove 15, so as to guide the positioning pin 141 to enter the guide groove 14.

In an implementation manner, the side wall of the connecting pipe 13 not provided with the axial locking groove 15 is provided with a plurality of continuous guiding inclined surfaces 17, and the slope of the plurality of continuous guiding inclined surfaces 17 increases from the groove wall of the guiding groove 14 to the free end surface of the connecting pipe 13.

In an achievable manner, the connecting tube 13 is centrosymmetric about a central axis.

In an implementation manner, at least one reinforced locking hole 18 is formed on the connection base 11, and the reinforced locking hole 18 is adjacent to the connection pipe 13.

Correspondingly, a reinforcement lock 19 matching the reinforcement lock hole 18 is provided on the position sleeve 2.

In an implementable manner, the outer diameter of the locking portion 21 decreases from the free end to the root in the axial direction, a step is formed between the positioning pin 141 and the U-shaped groove 151, and the smaller outer diameter of the locking portion 21 matches the inner diameter of the elastic return element 4 fitted on the rotary handle 3.

In an implementation manner, an anti-slip groove 31 is formed on the outer wall of the rotating handle 3 to increase the convenience of operation.

Compared with the prior art, the quick-insertion type locking mechanism provided by the application adopts the positioning pin to carry out axial and radial bidirectional locking, and sets up double locking parts on the end face of the connecting part, so that the connecting part is fully and stably connected, quick insertion and extraction can be realized through unscrewing the turning handle, professional tools are not required to be used, time and labor are saved, the connection is stable and reliable, and the connecting part is not easy to wear.

Drawings

FIG. 1 shows a schematic structural view of a locking mechanism provided herein;

FIG. 2 shows a schematic view of a joint;

fig. 3 shows a schematic structural view of a positioning sleeve 2;

fig. 4 shows a schematic view of a construction of a swing handle.

Description of the reference numerals

1-joint, 11-connecting base, 12-threaded pipe, 13-connecting pipe, 14-guide groove, 141-positioning pin, 15-axial locking groove, 151-U-shaped groove, 152-locking pin, 16-inclined table, 17-guide inclined surface, 18-reinforced locking hole, 19-reinforced lock, 2-positioning sleeve, 21-locking part, 22-external connecting part, 3-rotary handle, 31-antiskid groove and 4-elastic resetting piece.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of methods consistent with certain aspects of the invention, as detailed in the appended claims.

The following provides a detailed description of a quick-insertion locking mechanism provided by the present application with reference to specific embodiments.

Fig. 1 shows a schematic structural diagram of a locking mechanism provided by the present application, and as shown in fig. 1, the locking mechanism includes a joint 1, a positioning sleeve 2 used in cooperation with the joint 1, and a rotary handle 3 sleeved outside the positioning sleeve 2.

The application provides a formula locking mechanical system inserts soon is used for connecting two and treats the connecting piece, wherein, connects 1 fixed mounting on one treats the connecting piece, position sleeve 2 with 3 combination uses of swing handle, installs on another treats the connecting piece, is in through connecting 1 insert soon in the position sleeve 2 and pull out the realization two fast loading and unloading of treating the connecting piece.

Fig. 2 shows a schematic structural diagram of a joint, and as shown in fig. 2, the joint 1 includes a connection base 11, a threaded pipe 12 is arranged on one side of the connection base 11 and is used for being fixedly connected with a to-be-connected component, and the threaded connection stability is strong, so as to ensure the stability of the locking mechanism for connecting two to-be-connected components after being locked.

As shown in fig. 2, a connecting pipe 13 is provided on the other side of the connecting base 11, and a guide groove 14 is formed on the connecting pipe 13 along the generatrix direction thereof, and in an achievable manner, the groove bottom of the guide groove 14 is formed in a circular arc shape to avoid stress concentration at the groove bottom, thereby prolonging the service life of the guide groove 14.

Furthermore, at least one axial locking groove 15 is formed in a groove wall of the guide groove 14, and the axial locking groove 15 is perpendicular to the guide groove 14.

As shown in fig. 2, in this example, the width of the guide groove 14 gradually increases from the middle to the free end, so that the guide groove 14 is flared.

Specifically, at least one inclined platform 16 is disposed between the groove wall of the guide groove 14 and the free end face of the connecting pipe 13, and the height of the inclined platform 16 is not less than the depth of the groove bottom of the axial locking groove 15, that is, the upper boundary of the free end face of the connecting pipe 13 is lower than the groove bottom of the axial locking groove 15.

In this example, the locking pin 152 for axial locking is naturally located at a position lower than the bottom of the axial locking groove, so that after the joint 1 is connected with the positioning sleeve 2, the locking pin 152 is clamped in the axial locking groove 15, and the axial locking of the joint 1 is realized.

In this example, the upper boundary of the free end face of the coupling tube 13 is made lower than the groove bottom of the axial locking groove 15 so as to guide the positioning pin 141 into the guide groove 14.

As shown in fig. 2, in this example, the guide groove 14 divides the connecting pipe 13 into two parts, namely, an upper part and a lower part, and the hollow cavity of the connecting pipe 13 divides the upper half part and the lower half part of the guide groove 14 into two parts, namely, a left part and a right part, respectively, wherein the axial locking groove 15 is opened on the wall of the lower left groove of the guide groove 14. It is to be understood that the terms "upper", "lower", "left" and "right" used herein do not denote an orientation, but rather are used to denote a manner of convenience.

In this example, the side wall of the connecting pipe 13 not provided with the axial locking groove 15 is provided with a plurality of continuous guiding inclined planes 17, as shown in fig. 2, the right lower side wall is provided with a plurality of connected guiding inclined planes, from the groove wall of the guiding groove 14 to the free end surface of the connecting pipe 13, the slope of the plurality of continuous guiding inclined planes 17 is sequentially increased, so that the positioning pin can quickly and accurately enter the guiding groove 14 in the connection process of the joint 1 and the positioning sleeve 2.

In this example, the connecting pipe 13 is symmetrical about the center axis, that is, the structure of the lower left part of the connecting pipe 13 is the same as that of the upper right part, and the structure of the upper left part is the same as that of the lower right part, so that the joint 1 is added with one available station.

In this example, as shown in fig. 2, at least one reinforcing locking hole 18 is formed in the connection base 11, and the reinforcing locking hole 18 is adjacent to the connection pipe 13. The shape of the reinforcing key hole 18 is not particularly limited in the present application, and any shape in the prior art may be used, for example, a circular shape, a kidney shape, or a U shape, and accordingly, the reinforcing pin has a shape matching the circular shape, the kidney shape, or the U shape.

Fig. 3 shows a schematic structural diagram of a positioning sleeve 2, and as shown in fig. 3, the positioning sleeve 2 comprises a locking portion 21 and an external connecting portion 22.

In this example, the pair of external connection portions 22 is used for fixedly connecting with another member to be connected, thereby achieving the butt joint of the two members to be connected.

In this example, the positioning sleeve 2 and the joint 1 are in clearance fit, so that the positioning sleeve 2 and the joint 1 are positioned concentrically.

As shown in fig. 3, the locking portion 21 is cylindrical, the inner diameter of the locking portion matches with the outer diameter of the connecting pipe 13, a positioning pin 141 matching with the guide groove 14 is disposed on the locking portion 21, and optionally, the positioning pin 141 is in interference fit with the positioning sleeve 2 and can be connected into a whole by laser welding.

Further, a U-shaped groove 151 matched with the axial locking groove 15 is further formed in the locking portion 21, so that an axial locking pin can rapidly penetrate through the U-shaped groove 151 and be inserted into the axial locking groove 15.

Correspondingly, a reinforced lock 19 matched with the reinforced lock hole 18 is arranged on the positioning sleeve 2, and the shape of the reinforced lock is matched with that of the reinforced lock hole 18.

As shown in fig. 3, the outer diameter of the locking portion 21 may decrease from the free end to the root along the axial direction, a step is formed between the positioning pin 141 and the U-shaped groove 151, and the smaller outer diameter of the locking portion 21 matches the inner diameter of a fitting such as the elastic restoring member 4 assembled on the rotation handle 3.

Fig. 4 shows a schematic structural diagram of a rotary handle, and as shown in fig. 4, a locking pin 152 matched with the axial locking groove 15 is arranged on the rotary handle 3, and optionally, the locking pin 152 is in interference fit with the rotary handle 3 and can be connected into a whole by laser welding.

In this example, an elastic reset piece 4 is arranged between the rotating handle 3 and the positioning sleeve 2, the elastic reset piece 4 may be a torsion spring, and the locking pin can slide along the circumferential direction in the U-shaped notch of the positioning sleeve through the elastic reset piece and finally press the axial locking groove 15.

In this embodiment, an anti-slip groove 31 is formed on an outer wall of the rotating handle 3 to increase the convenience of operation.

Compared with the traditional scheme, the locking mechanism provided by the application is convenient for quick connection of the two to-be-connected pieces, particularly quick assembly and disassembly of a quick-assembly power tool and a driving motor in a surgical robot, particularly an orthopedic surgical robot, avoids the complexity of a special assembly and disassembly tool, does not need the intervention of a professional and a special tool in application, and can meet the application requirement of quick change; utilize torsional spring, joint inclined plane and locking round pin sliding assembly's quick insertion structure to, strengthen the lock and can solve the problem of transmission stationarity, make coupling mechanism steady reliable, reduce vibration and noise, the design of swing handle surface has the antiskid groove, and the handheld rotation of being convenient for accords with ergonomic.

The following description of the use of the locking mechanism provided herein with respect to the locking mechanism shown in fig. 1-4:

two positioning pins in the positioning sleeve 2 are subjected to quick insertion operation along the two guide grooves 14 of the joint 1, wherein the positioning pins and the guide grooves are in clearance fit, and after the quick insertion is completed, the two guide grooves 14 and the positioning pin 141 can realize radial locking, which is a first re-locking; in the process of fast inserting operation, after the locking pin 152 contacts the inclined plane of the joint 1, the locking pin axially slides along the inclined plane until the locking pin is in the axial locking groove 15, so that the axial locking and fixing function is realized, and the locking pin is axially locked; the front end of the positioning sleeve 2 is provided with a reinforced lock 19, correspondingly, the end surface of the joint 1 contacting with the positioning sleeve 2 is provided with two reinforced lock holes 18, the reinforced lock is in clearance fit with the reinforced lock holes, and after the quick insertion is completed, radial locking is realized, and the reinforced lock is a second re-lock; when needing to dismantle, need manual rotatory swing handle, make locking round pin 152 slide in the U type groove 151 of position sleeve 2, to locking round pin 152 and locating pin 141 after same phase place in the circumference, can realize smoothly connecting 1 and the split of position sleeve 2.

The present application has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to limit the application. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the presently disclosed embodiments and implementations thereof without departing from the spirit and scope of the present disclosure, and these fall within the scope of the present disclosure. The protection scope of this application is subject to the appended claims.

Claims

1. A quick-insertion type locking mechanism is characterized by comprising a connector (1), a positioning sleeve (2) matched with the connector (1) for use and a rotary handle (3) sleeved outside the positioning sleeve (2), wherein the connector (1) comprises a connecting base (11), a threaded pipe (12) is arranged on one side of the connecting base (11), a connecting pipe (13) is arranged on the other side of the connecting base (11), a guide groove (14) is formed in the connecting pipe (13) along the generatrix direction of the connecting pipe, and at least one axial locking groove (15) is formed in the groove wall of the guide groove (14); the positioning sleeve (2) comprises a locking part (21) and an external connecting part (22), wherein the locking part (21) is cylindrical, the inner diameter of the locking part is matched with the outer diameter of the connecting pipe (13), a positioning pin (141) matched with the guide groove (14) is arranged on the locking part (21), and a U-shaped groove (151) matched with the axial locking groove (15) is also arranged on the locking part (21); the rotary handle (3) is provided with a locking pin (152) matched with the axial locking groove (15), and an elastic reset piece (4) is arranged between the rotary handle (3) and the positioning sleeve (2).

2. A quick-insertion locking mechanism according to claim 1, characterised in that the guide groove (14) increases in width from the middle to the free end.

3. A quick-insertion locking mechanism according to claim 1, characterized in that a ramp (16) is provided between the wall of the guide groove (14) and the free end face of the connecting tube (13), the height of the ramp (16) being not less than the depth of the bottom of the axial locking groove (15) in order to guide the positioning pin (141) into the guide groove (14).

4. A quick-insertion locking mechanism according to claim 1, characterised in that the side wall of the connecting tube (13) not provided with the axial locking groove (15) is provided with a plurality of continuous guiding inclined surfaces (17), and the slope of the plurality of continuous guiding inclined surfaces (17) increases in sequence from the groove wall of the guiding groove (14) to the free end surface of the connecting tube (13).

5. A quick-insertion locking mechanism according to claim 1, characterised in that the connecting tube (13) is centrosymmetric about a central axis.

6. A quick-insertion locking mechanism according to claim 1, characterised in that at least one reinforcement locking hole (18) is provided in the connection base (11), the reinforcement locking hole (18) being adjacent to the connection tube (13).

7. A quick-insertion locking mechanism according to claim 1, characterised in that a reinforcing lock (19) matching the reinforcing lock hole (18) is provided on the positioning sleeve (2).

8. A quick-insertion locking mechanism according to claim 1, characterised in that the external diameter of the locking part (21) decreases axially from the free end to the root, a step is formed between the positioning pin (141) and the U-shaped groove (151), and the smaller external diameter of the locking part (21) matches the internal diameter of the elastic return element (4) fitted on the rotary handle (3).

9. A quick-insertion locking mechanism according to claim 1, characterised in that on the outer wall of the knob (3) there are provided anti-slip grooves (31).