Locking mechanism

Abstract

The utility model is applicable to the field of medical instruments, and provides a locking mechanism which comprises a base, a locking mechanism and a locking mechanism, the long shaft is mounted on the base in a manner of rotating around the axis, and a stop part is arranged on the long shaft; the clamping and stopping assembly is movably installed on the base, and when the clamping and stopping assembly abuts against the stopping part, rotation of the long shaft is limited; the unlocking part is arranged on the long shaft in a sleeving mode, can slide in the axial direction of the long shaft and drives the clamping and stopping assembly to be separated from or abut against the stopping part; the operating part is connected with the unlocking part, the operating part controls the unlocking part to slide along the long shaft under the action of external force, and an included angle is formed between the applying direction of the external force and the axial direction of the long shaft. According to the locking structure, the structural design of pressing unlocking and loosening resetting locking is adopted, the structure is simple, manufacturing and machining are easy, cost is low, operation is convenient, extra operation space does not need to be occupied during unlocking, and the operation experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical apparatus and instruments, especially relates to a locking mechanism. BACKGROUND

[0002] At present, the surgical robot is generally installed on the adjusting support arm, and the adjusting support arm is installed on the trolley in daily life, so that the surgical robot can be moved to the required place through the trolley. When working, the surgical robot is first moved to the side of the operating bed through the trolley, and then the adjusting support arm is disassembled and installed on the operating bed.

[0003] Whether the adjusting support arm is installed on the trolley or the operating bed, the adjusting support arm needs to be locked on the trolley or the operating bed after installation to prevent the adjusting support arm from sliding off the trolley or the operating bed and damaging the surgical robot. When the adjusting support arm is disassembled, the adjusting support arm needs to be unlocked first. Locking or unlocking is completed by operating the locking mechanism of the adjusting support arm. The existing locking mechanism includes a handle and a rotatable long shaft, and when in use, the handle needs to be operated to move along the axial direction of the long shaft to unlock, which leads to the need for additional occupation of operation space when unlocking, and there are technical problems of complex structure and inconvenient operation. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a locking mechanism for the adjusting support arm of a surgical robot, aiming at solving the technical problems of complex structure, inconvenient operation and additional occupation of operation space when unlocking in the prior art, and providing better operation experience.

[0005] The utility model is implemented in the following manner:

[0006] A locking mechanism for the adjusting support arm of a surgical robot, characterized in that it comprises:

[0007] a base;

[0008] a long shaft rotatably mounted on the base about an axis, wherein a stop portion is arranged on the long shaft;

[0009] a locking assembly movably mounted on the base, wherein the locking assembly is limited from rotating when abutting against the stop portion;

[0010] an unlocking portion sleeved on the long shaft, capable of sliding along the axial direction of the long shaft and driving the locking assembly to separate from or abut against the stop portion;

[0011] an operating portion connected to the unlocking portion, capable of controlling the unlocking portion to slide along the long shaft under the action of an external force, and the direction of the external force is at an angle with the axial direction of the long shaft.

[0012] Further, the base is further provided with a positioning part, and the long shaft is provided with a positioning groove, the positioning part and the positioning groove are clamped when the long shaft rotates to the limit position.

[0013] Further, the locking assembly comprises an abutting part abutting against the stop part, the unlocking part is in contact with the abutting part when sliding along the long shaft, the abutting part is pushed away from the stop part.

[0014] Further, the locking assembly further comprises a biasing part connected with the abutting part, the pre-acting force of the biasing part makes the abutting part abut against the stop part.

[0015] Further, the abutting part comprises a rotating end and an abutting end, the rotating end is rotatably installed on the support plate.

[0016] Further, the stop part is a ratchet wheel or a gear wheel or a friction wheel, the abutting end is correspondingly provided with a right angle or a bevel gear or a circular arc structure, and the extension line of one side of the right angle passes through the rotating center of the rotating end.

[0017] Further, the operating part comprises a rack and a force conversion mechanism installed on the rack, the center line of the rack is perpendicular to the axis of the long shaft, and the force conversion mechanism is used for converting the external force into a driving force for driving the unlocking part to slide along the axis.

[0018] Further, the force conversion mechanism comprises a pressing rod, a first spring and a pushing connecting rod, the tail of the rack is installed on one end of the long shaft, the two ends of the pushing connecting rod are connected with the tail end of the pressing rod and the unlocking part respectively, the first spring is sleeved outside the pressing rod, one end of the first spring is connected with the pressing rod, and the other end of the first spring is installed on the rack, the head end of the pressing rod is pressed to drive the unlocking part to slide and be released, and the elastic force of the first spring can drive the pressing rod to reset and drive the unlocking part to reset.

[0019] Further, the unlocking part comprises a sleeve, the other end of the pushing connecting rod is connected with the sleeve, the sleeve is slidably sleeved on the long shaft, and the sleeve is provided with a chamfer.

[0020] Further, the unlocking part comprises a pushing sleeve, an unlocking sleeve and a second spring, the pushing sleeve and the unlocking sleeve are slidably sleeved on the long shaft in sequence, the pushing sleeve is connected with the pushing connecting rod, the unlocking sleeve is provided with a chamfer, and one end of the second spring is arranged on the support plate, and the other end of the second spring is connected with the unlocking sleeve.

[0021] The locking structure adopts the structure design of pressing unlocking, loosening and resetting locking, is simple in structure, easy to manufacture and process, low in cost, convenient to operate, does not need to additionally occupy operation space during unlocking, and improves the operation experience of users. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a perspective view of a locking mechanism provided by the utility model embodiment;

[0023] Figure 2 is Figure 1 another angle of the locking mechanism in the utility model;

[0024] Figure 3 is Figure 2 the locking mechanism A-A section view in the utility model;

[0025] Figure 4 is Figure 1 the front view of the locking mechanism in the utility model;

[0026] Figure 5 is Figure 1 the abutting portion of the locking assembly in the utility model;

[0027] Figure 6 is the front view of the locking assembly provided by another embodiment;

[0028] Figure 7 is a perspective view of a locking mechanism provided by another embodiment.

[0029] REFERENCE SIGNS:

[0030] 1 - locking mechanism,

[0031] 10 - base, 11 - support plate, 110 - rotation stopping block, 12 - positioning portion, 121 - main body, 1210 - head end of the main body,

[0032] 20 - long shaft, 200 - one end of the long shaft, 21 - stop portion, 210 - ratchet wheel, 214 - friction wheel, 22 - positioning groove, 221 - first positioning groove, 222 - second positioning groove, 23 - rotation stopping structure,

[0033] 30 - locking assembly, 31 - abutting portion, 310 - rotating end, 311 - abutting end, 312 - right angle, 313 - reverse edge, 32 - biasing portion, 320 - elastic member, 321 - accommodating groove,

[0034] 40 - unlocking portion, 41 - sleeve, 410 - chamfer, 42 - pushing sleeve, 43 - unlocking sleeve, 44 - second spring,

[0035] 50 - operating portion, 500 - head end of the operating portion, 51 - frame, 510 - tail end of the frame, 52 - force diverting mechanism, 520 - pressing lever, 5200 - head end of the pressing lever, 521 - first spring, 522 - push link, 5220 - one end of the push link, 5221 - other end of the push link. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated, or even relative movement connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the description of the present application, the orientation or positional relationship indicated by the terms "length", "diameter", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0039] The terms "upper" and "upper portion" used in the present application refer to the general direction away from the direction of gravity, and the terms "bottom", "lower" and "lower portion" refer to the general direction of gravity. The term "rotation" includes "forward rotation" and "reverse rotation", "forward rotation" refers to clockwise rotation, and "reverse rotation" refers to counterclockwise rotation.

[0040] In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" or "a plurality of" is two or more.

[0041] Finally, it needs to be explained that if there is no conflict, the various features in the embodiments of the utility model and the embodiments can be combined with each other, and all within the protection scope of the utility model. In addition, all or part of the steps in the above method can be executed in a computer system such as a group of computer executable instructions, and although the steps are listed in the order of 1, 2, 3…, in some cases, the steps shown or described can be executed in an order different from here.

[0042] Referring to Figure 1 and Figure 2 , the utility model embodiment provides a locking mechanism 1, including base 10, long shaft 20, locking assembly 30, unlocking portion 40 and operation portion 50. Long shaft 20 is rotatably installed on the axis line of base 10, and the long shaft 20 is provided with a stop portion 21. The locking assembly 30 is movably installed on the base 10, and the locking assembly 30 is in contact with the stop portion 21, and can also be separated from the stop portion 21, and the locking assembly 30 is in contact with the stop portion 21 when limiting the rotation of the long shaft 20. The unlocking portion 40 is sleeved on the long shaft 20, can slide along the axis of the long shaft 20 and drive the locking assembly 30 to separate or contact with the stop portion 21. Specifically, when the unlocking portion 40 slides close to the locking assembly 30, contacts with the locking assembly 30, the unlocking portion 40 drives the locking assembly 30 to separate from the stop portion 21, when the unlocking portion 40 contacts with the locking assembly 30, if the unlocking portion 40 slides away from the locking assembly 30 along the axis of the long shaft 20, the unlocking portion 40 separates from the locking assembly 30, and drives the locking assembly 30 to contact with the stop portion 21. The tail end of the operation portion 50 is installed on one end 200 of the long shaft, and the operation portion 50 is also connected with the unlocking portion 40. Pressing the head end 500 of the operation portion, that is, applying external force to the head end 500 of the operation portion in the axis direction of the long shaft 20, the operation portion 50 can drive the unlocking portion 40 to slide close to the locking assembly 30 along the long shaft 20, and then release, that is, the action of external force is removed, the unlocking portion 40 slides in the opposite direction and resets, that is, slides away from the locking assembly 30. The locking mechanism 1 can be used for the adjusting arm (not shown) of the surgical robot (not shown), the surgical robot is installed on the adjusting arm, and the adjusting arm can be installed on a trolley (not shown) or a surgical bed (not shown), wherein the trolley is used to circulate the surgical robot.

[0043] It is understandable that the tail end of the operation part 50 is installed at the one end 200 of the long shaft, the axial direction of the operation part 50 is at an angle with the axial direction of the long shaft 20, and the application direction of the external force is along the axial direction of the operation part 50, so the application direction of the external force is at an angle with the axial direction of the long shaft. The working state of the locking mechanism 1 includes a locked state and an unlocked state, and can be switched between the locked state and the unlocked state. When the locking assembly 30 abuts against the stop part 21, the locking assembly 30 restricts the rotation of the long shaft 20, so the operation part 50 cannot rotate, and the locking mechanism 1 is in the locked state. When the locking assembly 30 is separated from the stop part 21, rotating the operation part 50 can drive the long shaft 20 to rotate, and the locking mechanism 1 is in the unlocked state.

[0044] As shown in Figure 2 and Figure 3 The base 10 is further provided with a positioning part 12, and the long shaft 20 is provided with a positioning groove 22. When the long shaft 20 rotates to the limit position, the positioning part 12 is clamped with the positioning groove 20. Preferably, the number of the positioning groove 22 is 2, including a first positioning groove 221 and a second positioning groove 222, and the limit position includes a first limit position and a second limit position. When the long shaft 20 rotates to the first limit position or the second limit position, the positioning part 12 can be clamped with the first positioning groove 221 or the second positioning groove 222.

[0045] Specifically, after placing the adjusting arm on the trolley or the operating bed in a proper position, the head end 500 of the operating part is kept pressed, i.e. the external force is kept applied to the head end 500 of the operating part, so that the locking mechanism 1 is kept in the unlocked state, while the operating part 50 is rotated clockwise or counterclockwise, driving the long shaft 20 to rotate to the first limit position or the second limit position, so that the positioning part 12 can be clamped with the first positioning groove 221 or the second positioning groove 222. When the external force is no longer applied to the head end 500 of the operating part, the locking mechanism 1 is in the locked state, and the adjusting arm is also locked on the trolley or the operating bed, which can prevent the adjusting arm and the surgical robot from falling off the trolley or the operating bed, and can also prevent the operating part 50 from being rotated due to misoperation, so that safety accidents can be effectively avoided. When the adjusting arm is locked on the trolley or the operating bed, if it is necessary to disassemble the adjusting arm from the trolley or the operating bed, or to transfer the surgical robot and the adjusting arm between the trolley and the operating bed, the head end 500 of the operating part is kept pressed, so that the locking mechanism 1 is kept in the unlocked state, while the operating part 50 is counterclockwise or clockwise rotated to the middle of the first limit position and the second limit position, so that the adjusting arm is unlocked from the trolley or the operating bed. Subsequently, disassembly or transfer can be performed.

[0046] Understandably, the operator keeps pressing the head end 500 of the operating part, so that the locking mechanism 1 is kept in the unlocked state. If the operator simultaneously rotates the operating part 50 clockwise, driving the long shaft 20 to rotate clockwise to the first limit position, the head end 1210 of the main body can slide into the first positioning groove 221 and be clamped therewith, which will give the operator a hand feeling feedback. At this time, if the operator rotates the operating part 50 counterclockwise, driving the long shaft 20 to rotate counterclockwise, the head end 1210 slides away from the first positioning groove 221. Similarly, the operator keeps pressing the head end 500 of the operating part, while rotating the operating part 50 counterclockwise, driving the long shaft 20 to rotate counterclockwise to the second limit position, so that the head end 1210 of the main body can slide into the second positioning groove 222 and be clamped therewith, which will also give the operator a hand feeling feedback. At this time, if the operator rotates the operating part 50 clockwise, driving the long shaft 20 to rotate clockwise, the head end 1210 will also slide away from the second positioning groove 222.

[0047] As Figure 1 and Figure 4As shown, the base 10 is provided with a support plate 11, the long shaft 20 and the locking assembly 30 are both installed on the base 10 through the support plate 11. The locking assembly 30 comprises an abutting portion 31 abutting against the stop portion 21, and the unlocking portion 40 drives the abutting portion 31 to separate from the stop portion 21 when the abutting portion 31 is in contact with the unlocking portion 40 sliding along the long shaft 20. Further, the locking assembly 30 further comprises a biasing portion 32 connected with the abutting portion 31, and the abutting portion 31 abuts against the stop portion 21 under the pre-acting force of the biasing portion 32. Understandably, the locking assembly 30 restricts the rotation of the long shaft 20 through the pre-acting force of the biasing portion 32 to make the abutting portion 31 abut against the stop portion 21. The number of the abutting portion 31 and the biasing portion 32 is the same, which can be one or two or three, and is not limited here. Preferably, the number of the abutting portion 31 and the biasing portion 32 is two.

[0048] Further referring to Figure 3 In this embodiment, preferably, the support plate 11 is further provided with a rotation stopping block 110, and the long shaft 20 is further provided with a rotation stopping structure 23 matched with the rotation stopping block 110, and the positioning portion 12 comprises a main body 121 and a containing groove. The head end 1210 of the main body 121 is hemispherical, which can be matched with the first positioning groove 221 and the second positioning groove 222. The containing groove is arranged on the base 10, and the main body 121 is movably installed in the containing groove. In the unlocking state, when the long shaft 20 rotates clockwise or counterclockwise to abut the rotation stopping block 110 against the rotation stopping structure 23, the long shaft 20 cannot continue to rotate clockwise or counterclockwise, but can rotate in the opposite direction, i.e. counterclockwise or clockwise, and the long shaft 20 is in the first limit position or the second limit position.

[0049] Further referring to Figure 4 The biasing portion 32 comprises an elastic member 320 and a containing groove 321, one end of the elastic member 320 is arranged in the containing groove 321, and the other end of the elastic member 320 is connected with the abutting portion 31. The pre-acting force is the elastic force of the elastic member 320. The elastic member 320 can be a tensile spring, a compression spring, a torsion spring, etc., which is not limited here, and preferably, the elastic member 320 is a compression spring.

[0050] In an embodiment, the abutting portion 31 comprises a rotating end 310 rotatably mounted on the support plate 11 and an abutting end 311. The elastic member 320 is connected to the rotating end 310. Under the action of the elastic force of the elastic member 320, the abutting end 311 abuts against the stop portion 21. When the unlocking portion 40 slides axially along the long shaft 20 to approach and contact the abutting end 311, the abutting end 311 is driven to rotate about the rotating end 310 against the elastic force of the elastic member 320, and then separates from the stop portion 21. When the unlocking portion 40 slides axially along the long shaft 20 to move away from the abutting end 311 and separates from the abutting end 311, the elastic force of the elastic member 320 drives the abutting end 311 to rotate about the rotating end 310 and abut against the stop portion 21.

[0051] Further referring to Figure 4 and Figure 5 , the stop portion 21 is a ratchet wheel 210 provided with ratchet teeth. The abutting end 311 is provided with a right angle 312 matching the ratchet teeth, and one side of the right angle 312 extends through the rotating center (not shown) of the rotating end 310. Specifically, the abutting end 311 comprises a blocking portion abutting against the ratchet teeth of the ratchet wheel 210 and a pushing portion contacting the unlocking portion 40. The blocking portion is shorter and lower than the pushing portion, and the right angle 312 is arranged on the blocking portion of the abutting end 311. In the locked state, the right angle 312 abuts against the ratchet teeth under the action of the elastic force of the elastic member 320. In the unlocked state, the unlocking portion 40 only contacts the pushing portion of the abutting end 311. The unlocking portion 40 presses the pushing portion to overcome the elastic force of the elastic member 320, drives the abutting end 311 to rotate about the rotating end 310, and then drives the right angle 312 to separate from the ratchet teeth.

[0052] In another embodiment, the stop portion 21 is a gear (not shown), and the abutting end 311 is provided with a bevel gear (not shown) matching the gear. Specifically, the abutting end 311 comprises a blocking portion abutting against the gear and a pushing portion contacting the unlocking portion 40. The blocking portion is shorter and lower than the pushing portion, and the bevel gear is arranged on the blocking portion of the abutting end 311. In the locked state, the bevel gear is in meshing engagement with the gear.

[0053] As shown in Figure 6 , in another embodiment, the stop portion 21 is a friction wheel 214, and the abutting end 311 of the abutting portion 31 is provided with a circular arc structure matching the friction wheel 214.

[0054] As shown in Figure 1 andFigure 7 As shown, the operating part 50 comprises a frame 51 and a force conversion mechanism 52 mounted on the frame 51, the center line of the frame 51 is perpendicular to the axis of the long shaft 20, and the force conversion mechanism 52 is used to convert the external force into power to drive the unlocking part 40 to slide along the axial direction.

[0055] Further referring to Figure 1 , Figure 2 , the force conversion mechanism 52 comprises a pressing rod 520, a first spring 521 and a pushing link 522, the tail part 510 of the frame is mounted on one end 200 of the long shaft, the head end 5200 of the pressing rod 520 extends out of the head part of the frame 51, the tail end of the pressing rod 520 is connected with one end 5220 of the pushing link, the other end 5221 of the pushing link is connected with the unlocking part 40, one end of the first spring 521 is connected with the pressing rod 520, and the other end of the first spring 521 is mounted on the frame 51, pressing the head end 5200 of the pressing rod can drive the unlocking part 40 to slide and be released, and the elastic force of the first spring 521 can drive the pressing rod 520 to reset and drive the unlocking part 40 to reset.

[0056] Preferably, the frame 51 is a frame structure, the tail part 510 is provided with a mounting groove matched with the one end 200 of the long shaft, the one end 200 of the long shaft is inserted into the mounting groove of the tail part 510, the head part of the frame 51 is provided with a through hole through which the pressing rod 520 can pass, the head end 5200 of the pressing rod extends out of the through hole of the head part of the frame 51, and the head end 5200 can be sleeved with a pressing sleeve made of soft material to provide a better pressing experience. The tail end of the pressing rod 520 is connected with one end 5220 of the pushing link in a hinged manner, and the other end 5221 of the pushing link is also connected with the unlocking part 40 in a hinged manner. The first spring 521 is sleeved on the pressing rod 520, one end of the first spring 521 is connected with the pressing rod 520, and the other end of the first spring 521 is mounted on the frame 51. In the locking state, pressing the head end 5200 drives the pressing rod 520 to drive the unlocking part 40 to slide through the pushing link 522, and at the same time, the pressing rod 520 compresses the first spring 521; in the released state, the elastic force of the spring 521 drives the pressing rod 520 to reset, and drives the unlocking part 40 to reset and slide through the pushing link 522.

[0057] In an embodiment, the operating part 50 further comprises a housing (not shown), wherein the housing exposes the head end 5200 of the pressing rod, and the rest of the housing houses the frame 51, the pressing rod 520, the first spring 521 and the pushing link 522. The housing can improve the operating experience of the operator.

[0058] Further referring to Figure 1 and Figure 5 , preferably, the unlocking part 40 is a sleeve 41, which is slidably sleeved on the long shaft 20, and the sleeve 41 and the abutting part 31 are respectively provided with matching chamfers 410 and bevels 313. Understandably, when the operator presses the head end 5200 of the pressing rod, the pushing link 522 drives the sleeve 41 to slide along the long shaft 20 and approach the abutting part 31, the chamfer 410 of the sleeve 41 abuts and contacts the bevel 313 of the abutting part 31, and extrudes and pushes the abutting part 31 to overcome the elastic force of the two elastic members 320, drives the abutting part 31 to separate from the stop part 21, and makes the locking mechanism 1 in the unlocking state. When the head end 5200 of the pressing rod is released, the pushing link 522 drives the sleeve 41 to slide along the long shaft 20 and away from the abutting part 31, the sleeve 41 no longer abuts and contacts the abutting part 31, and the elastic members 320 restore the deformation and push the abutting part 31 to abut the stop part 21, and the locking mechanism 1 is in the locking state.

[0059] As Figure 5 , Figure 7As shown, in another embodiment, the unlocking part 40 comprises a pushing sleeve 42, an unlocking sleeve 43 and a second spring 44, the pushing sleeve 42 and the unlocking sleeve 43 are sleeved on the long shaft 20 in sequence, the pushing sleeve 42 is connected with the pushing connecting rod 522, the unlocking sleeve 43 and the abutting part 31 are respectively provided with matched chamfers 430 and bevels 313, one end of the second spring 44 is arranged on the support plate 11, and the other end of the second spring 44 is connected with the unlocking sleeve 43. Preferably, the number of the second spring 44 is 2. Understandably, when the head end 5200 of the pressing rod is not pressed, that is, in the locked state, the unlocking sleeve 43 is separated from the abutting part 31 under the elastic force of the second spring 44. When the head end 5200 of the pressing rod is pressed, the pushing connecting rod 522 drives the pushing sleeve 42 to slide along the long shaft 20, and pushes the unlocking sleeve 43 to overcome the elastic force of the second spring 44, and then the chamfer 430 of the unlocking sleeve 43 abuts and contacts with the bevel 313 of the abutting part 31, extrudes and pushes the abutting part 31 to overcome the elastic force of the elastic piece 320, and drives the abutting part 31 to separate from the stop part 21, so that the locking mechanism 1 is in the unlocked state.

[0060] Those skilled in the art can understand that all or part of the steps in the foregoing method can be instructed by programs to relevant hardware, and the programs can be stored in a computer readable storage medium, such as a read-only memory, a magnetic disk or an optical disk. Alternatively, all or part of the steps of the foregoing embodiments can also be implemented using one or more integrated circuits. Accordingly, each module / unit in the foregoing embodiments can be implemented in the form of hardware or in the form of a software functional module. The utility model is not limited to any specific form of combination of hardware and software.

[0061] Of course, the utility model can have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the utility model without departing from the spirit and essence of the utility model, but these corresponding changes and modifications should all belong to the protection scope of the claims of the utility model.

[0062] The above only describes the preferred embodiments of the utility model and does not limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A locking mechanism, characterized in that The utility model provides a long axis can be rotatably installed on the base, and the long axis is provided with a stop part; a clamping assembly is movably installed on the base, and the clamping assembly is limited to rotate when abutting against the stop part; an unlocking part is sleeved on the long axis, can slide along the axial direction of the long axis and drives the clamping assembly to abscise or abut against the stop part; an operating part is connected with the unlocking part, and the operating part controls the unlocking part to slide along the long axis under the action of external force, and the direction of the external force is at the included angle with the axial direction of the long axis. The base is further provided with a positioning part, and the long axis is provided with a positioning groove, the positioning part and the positioning groove are clamped when the long axis rotates to the limit position. The base is provided with a support plate, the long axis and the clamping assembly are installed on the base through the support plate, the clamping assembly includes an abutting part abutting against the stop part, and the abutting part is separated from the stop part when the abutting part contacts the abutting part and slides along the long axis. The clamping assembly further includes a biasing part connected with the abutting part, and the pre-acting force of the biasing part makes the abutting part abut against the stop part. The abutting part includes a rotating end and an abutting end, and the rotating end is rotatably installed on the support plate. The stop part is a ratchet wheel or a gear or a friction wheel, the abutting end is correspondingly provided with a right angle or a bevel gear or a circular arc structure, and the extension line of one side of the right angle passes through the rotating center of the rotating end.

2. The locking mechanism of claim 1, wherein The operating part includes a rack and a force turning mechanism installed on the rack, the center line of the rack is perpendicular to the axial line of the long axis, and the force turning mechanism is used for converting the external force into power for driving the unlocking part to slide along the axial direction.

3. The locking mechanism of claim 1, wherein The force turning mechanism includes a pressing rod, a first spring and a pushing connecting rod, the tail of the rack is installed on one end of the long axis, the two ends of the pushing connecting rod are connected with the tail end of the pressing rod and the unlocking part respectively, the first spring is sleeved outside the pressing rod, one end of the first spring is connected with the pressing rod, the other end of the first spring is installed on the rack, the head end of the pressing rod is pressed to drive the unlocking part to slide and then be released, and the elastic force of the first spring can drive the pressing rod to reset and drive the unlocking part to reset.

4. The locking mechanism of claim 3, wherein The unlocking part includes a sleeve, the other end of the pushing connecting rod is connected with the sleeve, the sleeve is slidably sleeved on the long axis, and the sleeve is provided with a chamfer.

5. The locking mechanism of claim 4, wherein The unlocking part includes a pushing sleeve, an unlocking sleeve and a second spring, the pushing sleeve and the unlocking sleeve are slidably sleeved on the long axis in sequence, the pushing sleeve is connected with the pushing connecting rod, the unlocking sleeve is provided with a chamfer, and one end of the second spring is arranged on the support plate, and the other end of the second spring is connected with the unlocking sleeve.

6. The locking mechanism of claim 5, wherein ​ 7. The locking mechanism of claim 3, wherein ​ 8. The locking mechanism of claim 7, wherein ​ 9. The locking mechanism of claim 8, wherein ​ 10. The locking mechanism of claim 8, wherein ​

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