CN112012585B - Axial locking mechanism, lockset and unlocking method thereof - Google Patents

Abstract

The invention is suitable for the field of locks, and discloses an axial locking mechanism, a lock and an unlocking method thereof, wherein the axial locking mechanism comprises a lock body and a lock pin, the lock body comprises an outer lock sleeve, an inner lock sleeve, a locking part, a self-locking shaft and an elastic part, the outer lock sleeve is arranged at the periphery of the inner lock sleeve, the inner lock sleeve is provided with a first locking hole and a second locking hole, the locking part comprises a first locking part arranged in the first locking hole and a second locking part arranged in the second locking hole, the inner side wall of the outer lock sleeve is provided with a yielding groove for the first locking part to extend into to unlock the lock pin when the first locking part moves to a lock pin unlocking position, and the inner side wall of the outer lock sleeve is also provided with a locking groove for the second locking part to extend into to lock the inner lock sleeve when the second locking part moves to the lock sleeve locking position. The axial locking mechanism, the lockset and the unlocking method thereof provided by the invention have the characteristics of high coaxiality, stable structure and convenience in unlocking and unlocking operation.

Description

Axial locking mechanism, lockset and unlocking method thereof

Technical Field

The invention belongs to the field of locks, and particularly relates to an axial locking mechanism, a lock and an unlocking method thereof.

Background

When facilities such as a mechanism box, a terminal box and a control panel cabinet are subjected to five-prevention integrated management, the facilities can be locked by adopting a traditional lockset so as to ensure the safety of the facilities and personnel.

The locking mechanism in the current lock has many moving parts, for example, the locking mechanism has axial movement and horizontal movement, and the locking structure of the lock needs to be unlocked and locked by the participation of the axial moving part and the horizontal moving part. However, the parts moving axially and horizontally are matched, so that the size of the locking mechanism is increased, the precision requirement of part machining and assembly is high, and the defect of unstable structure is caused by carelessness.

Disclosure of Invention

The invention aims to solve at least one of the technical problems and provides an axial locking lockset and an unlocking method thereof, wherein a torsional spring is not needed for rotating unlocking, and the axial locking lockset has the characteristics of high coaxiality, stable structure and convenient unlocking operation.

The technical scheme of the invention is as follows: the utility model provides an axial blocked mechanical system, includes lock body and lockpin, the one end of lockpin is for being used for inserting the end of inserting in the lock body, it is provided with the spacing groove to insert the end, the lock body includes:

an outer lock sleeve;

the inner lock sleeve is arranged in the outer lock sleeve in an axial sliding mode and can be pushed by the lock pin in the axial direction, and a first locking hole and a second locking hole are formed in the side wall of the inner lock sleeve;

a locking component including a first locking member disposed in the first locking hole and adapted to extend into the limiting groove and move axially with the inner lock sleeve to a locking position to lock the locking pin to the inner lock sleeve, and a second locking member disposed in the second locking hole and movable axially with the inner lock sleeve to a locking position to lock the inner lock sleeve to the outer lock sleeve;

a self-locking shaft, the front end of the self-locking shaft extending into the inner lock sleeve and cooperating with the second locking piece to lock the inner lock sleeve to the outer lock sleeve, the self-locking shaft being rotatable relative to the outer lock sleeve to unlock the inner lock sleeve;

an elastic member including an inner lock sleeve elastic member connected to the inner lock sleeve and a self-locking shaft elastic member connected to the self-locking shaft;

the outer lock sleeve, the inner lock sleeve, the self-locking shaft and the elastic component are coaxially arranged; the inner side wall of the outer lock sleeve is provided with an escape groove and a locking groove, the escape groove is used for allowing the first locking piece to stretch into to unlock the locking pin when the first locking piece moves to the locking pin unlocking position, and the locking groove is used for allowing the second locking piece to stretch into to lock the inner lock sleeve when the second locking piece moves to the lock sleeve locking position.

Optionally, the first locking member is provided with a first end and a second end, a limiting protrusion abutting against the inner locking sleeve and used for being abutted against the second end to push the first end into the limiting groove is arranged on the inner side wall of the outer locking sleeve at the locking position of the lock pin, the receding groove is an annular groove arranged at one end of the outer locking sleeve close to the lock pin, and the locking pin unlocking position and the locking position of the lock pin are arranged adjacent to each other up and down.

Optionally, the second latch has a first end and a second end, and an outer peripheral side of the self-locking shaft is provided with a latch projection for abutting against the first end to push the second end into the latch groove.

Optionally, the outer peripheral side of the self-locking shaft is further provided with an unlocking groove for the first end to extend into to unlock the inner lock sleeve when rotating to be aligned with the second locking piece; or the inner side wall of the outer lock sleeve is also provided with an unlocking groove for the second end to extend into to unlock the inner lock sleeve when the inner side wall of the outer lock sleeve rotates to be aligned with the second locking piece.

Optionally, the number of the first locking pieces is at least two, and each first locking piece is symmetrically distributed on the inner lock sleeve; and/or the second locking parts are provided with at least two, and the second locking parts are symmetrically distributed on the inner lock sleeve.

Optionally, the first latch is a steel ball, and the diameter of the first latch is greater than the length of the first latch hole; and/or the second locking piece is a steel ball, and the diameter of the second locking piece is larger than the length of the second locking hole.

Optionally, an unlocking piece for rotating the self-locking shaft is connected to one end of the self-locking shaft, which faces away from the lock pin.

Optionally, a slot is formed in one end, back to the lock pin, of the self-locking shaft, a plug port is formed in the side wall of the slot, one end of the unlocking piece extends into the mating end of the slot, a plug protrusion extending into the plug port is formed in the mating end, and the other end of the unlocking piece is a knob end connected with a knob.

The invention also provides a lockset, which comprises the axial locking mechanism.

The invention also provides an unlocking and locking method of the lockset, which is used for unlocking or locking the lockset and comprises an unlocking step or/and a locking step;

the latching step includes:

the lock pin is inserted into the lock body and pushes the inner lock sleeve to move;

the second latch member moves to the sleeve latched position and the first latch member moves to the lock pin latched position;

the second locking piece extends into the locking groove to lock the inner lock sleeve on the outer lock sleeve, and the first locking piece extends into the limiting groove to lock the lock pin on the inner lock sleeve;

the unlocking step includes:

the first locking piece keeps extending into the limiting groove and the second locking piece keeps extending into the locking groove;

rotating the self-locking shaft to align the unlocking slot with the second locking member;

the second locking piece is separated from the locking groove and extends into the unlocking groove to release the locking state of the inner lock sleeve;

the inner lock sleeve is reset upwards, and the first locking piece moves to a locking pin unlocking position and extends into the receding groove under the action of the locking pin so as to release the locking state of the locking pin.

The invention provides an axial locking mechanism, a lockset and an unlocking method thereof.A lockpin inserted into a lock body is utilized to push an inner lock sleeve, so that a first locking member is moved to a lockpin locking position and locks the lockpin in the inner lock sleeve, and a second locking member is moved to a lock sleeve locking position and locks the inner lock sleeve in an outer lock sleeve, thereby solving the problem that the unlocking of the existing padlock is more complicated, and facilitating the unlocking and locking operations of operators; and need not to use the torsional spring to reset when the unblock, can improve the axiality of each part of tool to lock effectively to promote the structural stability of tool to lock.

Drawings

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

FIG. 1 is a front view of an axial locking mechanism provided by an embodiment of the present invention;

FIG. 2 is an exploded view of an axial locking mechanism provided by an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an axial locking mechanism (with locking pin just inserted) provided in accordance with an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an axial locking mechanism (the locking pin begins to move downward) provided by an embodiment of the present invention;

FIG. 5 is a cross-sectional view of an axial locking mechanism (when locking the locking pin) provided by an embodiment of the present invention;

FIG. 6 is a cross-sectional view of an axial locking mechanism (when the inner lock sleeve is locked) provided by an embodiment of the present invention;

FIG. 7 is a cross-sectional view of an axial locking mechanism (when rotationally unlocked) provided by an embodiment of the present invention;

FIG. 8 is a cross-sectional view taken at section A-A of FIG. 6;

FIG. 9 is a cross-sectional view taken at section B-B of FIG. 7;

FIG. 10 is a schematic view of one embodiment of a lock according to the present invention;

fig. 11 is a schematic view of another embodiment of a lock according to an embodiment of the present invention.

In the figure:

1. a lock body;

10. an outer lock sleeve; 11. a receding groove; 12. a limiting bulge; 13. a locking groove; 14. a spacing pin;

20. an inner lock sleeve; 21. a first latch; 22. a second latch; 23. a first latching aperture; 24. a second latching aperture; 25. an inner lock sleeve elastic member; 26. a guide groove; 27. a stopper portion;

30. a self-locking shaft; 31. a locking protrusion; 32. unlocking the groove; 33. a slot; 34. an interface; 35. a first flange; 36. a self-locking shaft elastic member;

40. unlocking the lock; 41. inserting and connecting the bulges; 42. a second flange; 43. positioning the elastic member; 44. a positioning member; 45. positioning holes; 46. a knob;

50. a fixed seat; 51. a through hole of the fixing seat; 52. positioning a groove;

6. a lock pin;

60. a lock pin body; 61. an insertion end; 62. a limiting groove;

70. a door frame; 71. a door panel; 72. a handle; 721. unlocking the hole;

80. a lock body; 81. a latch hook.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed or connected, or indirectly disposed or connected through intervening elements or intervening structures.

In addition, in the embodiments of the present invention, if there are terms of orientation or positional relationship indicated by "longitudinal direction", "lateral direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., it is only for convenience of description and simplification of description based on the orientation or positional relationship shown in the drawings or the conventional placing state or using state, and it does not indicate or imply that the structures, features, devices or elements referred to must have a specific orientation or positional relationship or must not be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The various features and embodiments described in the embodiments may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and in order to avoid unnecessary repetition, various possible combinations of features/embodiments in the present invention will not be described in detail.

Referring to fig. 1 and 2, fig. 1 and 2 respectively show a front view and an exploded view of an axial locking mechanism, the axial locking mechanism includes a lock body 1 and a lock pin 6, one end of the lock pin 6 is an insertion end 61 for inserting into the lock body 1, the insertion end 61 of the lock pin 6 is provided with a limiting groove 62, the lock body 1 includes an outer lock sleeve 10, an inner lock sleeve 20, a locking member, a self-locking shaft 30 and a resilient member, referring to fig. 3 together, fig. 3 shows a cross-sectional view of the axial locking mechanism when the lock pin 6 is inserted into the lock body 1, wherein the outer lock sleeve 10 and the inner lock sleeve 20 are both hollow shells, the outer lock sleeve 10 is sleeved on the periphery of the inner lock sleeve 20, the inner lock sleeve 20 can slide along the axial direction of the outer lock sleeve 10, and the inner lock sleeve 20 is connected to the inner lock sleeve resilient member 25 in the resilient member, when the insertion end 61 of the lock pin 6 is inserted into the lock body 1, the locking pin 6 may compress the inner sleeve spring 25 and push the inner sleeve 20 downward. The front end of the self-locking shaft 30 may be extended into the inner lock casing 20, the rear end of the self-locking shaft 30 may be connected to the self-locking shaft elastic member 36 of the elastic member, and the self-locking shaft 30 may be relatively rotated with respect to the outer lock casing 10.

The inner lock sleeve 20 is provided with a first locking hole 23 and a second locking hole 24, and the first locking hole 23 and the second locking hole 24 can be arranged at intervals up and down; the latch parts include a first latch member 21 and a second latch member 22, the first latch member 21 and the second latch member 22 being located in a first latch hole 23 and a second latch hole 24, respectively. When the lock pin 6 is inserted into the lock body 1 and pushes the inner lock sleeve 20, the second locking member 22 moves downwards along with the lock pin, and when the second locking member 22 moves to the lock sleeve locking position, the second locking member 22 can be matched with the self-locking shaft 30 to lock the inner lock sleeve 20 to the outer lock sleeve 10, so that the inner lock sleeve 20 cannot slide in the outer lock sleeve 10; meanwhile, the first locking member 21 moves downward and extends into the limiting groove 62, and when the second locking member 22 locks the inner lock sleeve 20, the first locking member 21 reaches the locking position at the same time, so that the locking pin 6 is locked to the inner lock sleeve 20 and cannot be pulled out from the lock body 1. In this way, the first locking member 21 and the second locking member 22 moving synchronously with the inner lock sleeve 20 respectively lock the lock pin 6 and the inner lock sleeve 20, so that the lock pin 6 and the lock body 1 complete the locking operation, which is more convenient and faster than the prior art. When unlocking, the second locking piece 22 can be unlocked from the inner locking sleeve 20 through the relative rotation of the self-locking shaft 30 and the outer locking sleeve 10, the unlocking operation is also convenient, and a torsion spring is not needed in the unlocking process, so that the coaxiality of all parts in the axial locking mechanism is higher, and the structural stability is better. It should be understood by those skilled in the art that the relative rotation between the self-locking shaft 30 and the outer lock sleeve 10 can be either the fixed rotation of the outer lock sleeve 10 and the rotation of the self-locking shaft 30 or the fixed rotation of the self-locking shaft 30 and the fixed rotation of the outer lock sleeve 10.

It should be noted that the lock pin locking position in the present embodiment is defined according to the sleeve locking position, and specifically, when the second locking member 22 moves to the sleeve locking position and locks the inner sleeve 20, the position of the first locking member 21 is the lock pin locking position.

Specifically, the inner lock sleeve elastic member 25 and the self-locking shaft elastic member 36 may employ springs, and the self-locking shaft elastic member 36 may be located at a central position of the inner lock sleeve elastic member 25, i.e., the inner lock sleeve elastic member 25 is sleeved to the self-locking shaft elastic member 36.

With continued reference to FIG. 3, the first locking member 21 has a first end facing the inside of the inner lock sleeve 20 and a second end facing the outside of the inner lock sleeve 20, and the first locking member 21 is movable in the first locking hole 23 such that the first end extends out of the inside wall of the inner lock sleeve 20 and the second end extends out of the outside wall of the inner lock sleeve 20. The inside wall of outer lock tube 10 is provided with in the position department that corresponds the lockpin position of unblocking and moves back and give way groove 11, moves back and gives way the upper end that groove 11 can be located the inside wall of interior lock tube 20, and the second end of first latch 21 can stretch out the lateral wall of interior lock tube 20 and stretch into and move back and give way in groove 11. It should be noted that the lock pin unlocking position refers to a position where the first latch member 21 moves upward with the inner lock sleeve 20 until the first latch member 21 exits the limit groove 62 after the inner lock sleeve 20 unlocks.

Referring to fig. 4 and 5 together, fig. 4 and 5 show a schematic view when the insertion end 61 pushes the inner lock sleeve 20 downward, the limiting groove 62 is located at the side of the insertion end 61, when the insertion end 61 of the lock pin 6 pushes the inner lock sleeve 20 downward and moves the first locking member 21 to the lock pin locking position, the first end of the first locking member 21 will extend into the limiting groove 62, and at this time, the first locking member 21 is clamped between the limiting groove 62 and the inner lock sleeve 20, so that the insertion end 61 of the lock pin 6 cannot be pulled out of the inner lock sleeve 20. When the insertion end 61 of the lock pin 6 drives the inner lock sleeve 20 and the first locking member 21 to move to the lock pin unlocking position, the groove wall of the limiting groove 62 acts on the first locking member 21, so that the first end of the first locking member 21 retracts into the first locking hole 23 and the second end extends into the receding groove 11, at this time, the insertion end 61 is no longer locked by the first locking member 21, and the lock pin 6 can be extracted from the lock body 1.

Further, as an alternative embodiment of the present embodiment, with reference to fig. 5, the inner sidewall of the outer lock sleeve 10 is provided with a limiting protrusion 12 at a position corresponding to the locking position of the lock pin, when the first locking member 21 moves to the locking position of the lock pin, the second end of the first locking member 21 will abut against the limiting protrusion 12, so that the second end retracts into the first locking hole 23 and the first end extends into the limiting groove 62 (i.e. the first locking member 21 moves towards the limiting groove 62), so that the first locking member 21 locks the insertion end 61 of the lock pin 6. It is understood that the limiting protrusion 12 at the locking position of the lock pin is relative to the receding groove 11, and in a specific application, the limiting protrusion 12 may also be understood as an inner side wall of the outer lock sleeve 10, and the receding groove 11 is a groove disposed on the inner side wall.

Specifically, the lock pin unlocking position and the lock pin locking position can be arranged adjacently up and down, specifically, the receding groove 11 and the limiting protrusion 12 are arranged adjacently up and down, and the joint of the receding groove 11 and the limiting protrusion 12 can be provided with an inclined surface transition, so that the second end of the first locking member 21 can move to the limiting protrusion 12 from the receding groove 11, the first locking member 21 can move more smoothly, and the reliability of the axial locking mechanism is improved.

Preferably, the relief groove 11 may be an annular groove, so that the first locking member 21 can smoothly extend into the relief groove 11 to release the restriction of the lock pin 6 when moving from any direction to the lock pin unlocking position, thereby improving the practicability of the axial locking mechanism. In addition, the limiting groove 62 may be an annular groove surrounding the insertion end 61, and the side wall of the limiting groove 62 may be a curved surface, so that the lock pin 6 can be inserted into the lock body 1 at any angle, further improving the practicability of the axial locking mechanism.

Specifically, referring to fig. 2 and 3 together, the locking pin 6 includes a locking pin body 60 and an insertion end 61 connected to the locking pin body 60, the locking pin body 60 and the insertion end 61 may be cylindrical, the diameter of the insertion end 61 is smaller than the diameter of the locking pin body 60 and the diameter of the inner bore of the inner lock sleeve 20, and the diameter of the locking pin body 60 is larger than the diameter of the inner bore of the inner lock sleeve 20. When the insertion end 61 of the lock pin 6 is inserted into the lock body 1, the insertion end 61 can extend into the inner hole of the inner lock sleeve 20, and the lock pin body 60 can abut against the upper end of the inner lock sleeve 20, so that the lock pin 6 can push the inner lock sleeve 20 to move downwards.

Further, the diameter of the locking pin body 60 is smaller than the diameter of the upper end of the inner bore of the outer lock sleeve 10 (i.e., the diameter of the locking pin body 60 is smaller than the diameter of the relief groove 11), so that when the locking pin 6 continuously pushes the inner lock sleeve 20 downward, the locking pin body 60 can enter the inner bore of the outer lock sleeve 10 without being blocked by the outer lock sleeve 10.

With continued reference to fig. 3, as an alternative embodiment of the present embodiment, the second locking member 22 has a first end facing the inside of the inner lock sleeve 20 and a second end facing the outside of the inner lock sleeve 20, and the inner side wall of the outer lock sleeve 10 is provided with a locking slot 13 at a position corresponding to the locking position of the lock sleeve. The limiting protrusion 12 may be disposed adjacent to the locking groove 13, and before the lock pin 6 is inserted, the second end of the second locking member 22 may abut against the limiting protrusion 12, so that the first end of the second locking member 22 protrudes from the inner side wall of the inner lock sleeve 20.

It is understood that the locking groove 13 in this embodiment is relative to the limiting protrusion 12, and in a specific application, the limiting protrusion 12 may be formed by protruding the inner side wall of the outer lock sleeve 10, and the relief groove 11 and the locking groove 13 with a height lower than that of the limiting protrusion 12 are formed on the upper and lower sides of the limiting protrusion 12, respectively.

Further, the outer peripheral side of the self-locking shaft 30 is provided with a locking projection 31, and the locking projection 31 can abut against the first end of the second locking member 22. Referring to fig. 4 to 6, fig. 4 to 6 respectively show the process of inserting the lock pin 6 into the lock body 1 and locking. First, referring to fig. 4, when the lock pin 6 is inserted into the lock body 1 and pushes the inner lock sleeve 20, the second locking member 22 moves downward along with the inner lock sleeve 20, and in the process, the second locking member 22 is stopped by the limiting protrusion 12, and the first end of the second locking member 22 extends out of the inner sidewall of the inner lock sleeve 20 and abuts against the locking protrusion 31; while continuing to push the inner sleeve 20 downward, referring to fig. 5, the second locking member 22 will push the self-locking shaft 30 downward synchronously until the second locking member 22 reaches the locking position of the sleeve (i.e. the second locking member 22 is aligned with the locking slot 13), and the locking protrusion 31 of the self-locking shaft 30 will exert an upward pushing force on the first end of the second locking member 22 under the action of the self-locking shaft elastic member 36; referring to fig. 6, under the action of the pushing force, the second locking member 22 moves to the right, the second end of the second locking member 22 extends into the locking slot 13, so that the second locking member 22 is clamped between the inner jacket 20 and the outer jacket 10, thereby locking the inner jacket 20 to the outer jacket 10, and the first end of the second locking member 22 retracts into the second locking hole 24 and no longer abuts against the locking protrusion 31, and the self-locking shaft 30 is returned upward by the self-locking shaft elastic member 36 until the locking protrusion 31 faces the second locking member 22, so that the second locking member 22 (without a space receding to the side of the self-locking shaft 30) cannot be disengaged from the locking slot 13. Thus, when the lock pin 6 is inserted into the lock body 1 and the inner sleeve 20 is pushed downward, the first and second latch members 21 and 22 reach the lock pin locking position and the sleeve locking position, respectively, at the same time, so that the first latch member 21 locks the insertion end 61 of the lock pin 6 to the inner sleeve 20 and the second latch member 22 locks the inner sleeve 20 to the outer sleeve 10, so that the lock pin 6 and the lock body 1 are in the locked state.

Referring to fig. 7, fig. 7 is a schematic view illustrating the unlocking groove 32 rotated to face the locking groove 13, and as an alternative embodiment of the present embodiment, the unlocking groove 32 is further provided on the outer circumferential side of the self-locking shaft 30. Referring also to FIG. 8, FIG. 8 shows the second locking member 22 and the unlocking slot 32 in a locked position, in which the second end of the second locking member 22 is located in the locking slot 13 and the unlocking slot 32 is offset from the locking slot 13 (i.e., the unlocking slot 32 is not facing the locking slot 13).

Referring also to fig. 9, fig. 9 shows the position relationship of the second locking member 22 and the unlocking slot 32 when unlocking, the self-locking shaft 30 can be rotated to rotate the unlocking slot 32 to face the locking slot 13, the first end of the second locking member 22 will extend into the unlocking slot 32, and the second end of the second locking member 22 will retract into the second locking hole 24 at the same time, so that the second locking member 22 releases the restriction of the inner lock sleeve 20, and then the inner lock sleeve 20 can be reset upwards under the action of the inner lock sleeve elastic member 25. It is to be understood that the unlocking groove 32 in this embodiment is disposed opposite to the locking protrusion 31, that is, the unlocking groove 32 may be formed by the locking protrusion 31 being recessed inward, and the unlocking groove 32 is disposed on an outer side wall of the self-locking shaft 30 and disposed along the axial direction of the self-locking shaft 30 and extends to an upper end portion of the self-locking shaft 30 to facilitate the axial movement of the self-locking shaft 30.

Specifically, referring to fig. 7 again, in the present embodiment, in order to ensure the coaxiality and the movement reliability of the inner lock sleeve 20 and the outer lock sleeve 10, the outer side wall of the inner lock sleeve 20 is provided with a guide groove 26, and the stopper pin 14 is used to penetrate through the outer lock sleeve 10 and extend into the guide groove 26, when the inner lock sleeve 20 slides in the axial direction, the lock pin 6 can prevent the inner lock sleeve 20 from being separated from the outer lock sleeve 10 on one hand, and can prevent the inner lock sleeve 20 and the outer lock sleeve 10 from rotating relatively on the other hand.

Alternatively, as another alternative to the unlocking groove in the present embodiment, the unlocking groove may also be disposed on the inner side wall of the outer lock sleeve 10. Specifically, the unlocking slot is disposed on the limiting protrusion 12, that is, the locking protrusion 31 is recessed inward to form the unlocking slot, and since the upper side of the second end of the second locking member 22 is abutted against the locking protrusion 31 in the locking state, when the outer lock sleeve 10 is rotated until the unlocking slot is rotated above the second locking member 22, the second end of the second locking member 22 will extend into the unlocking slot and be reset upward under the action of the inner lock sleeve elastic member 25. In this way, the technical effects of the foregoing embodiments can also be achieved.

Referring to fig. 9 again, as an alternative embodiment of the present embodiment, at least two first locking members 21 are provided, the number of the first locking holes 23 is corresponding to the number of the first locking members 21, and the first locking members 21 and the first locking holes 23 are symmetrically distributed on the inner lock sleeve 20, so that the stress of the first locking members 21 during unlocking and locking can be more balanced, and the reliability of the axial locking mechanism can be improved.

Further, as an alternative embodiment of the present embodiment, at least two second locking members 22 are provided, the second locking holes 24 are provided corresponding to the number of the first locking members 21, and the second locking members 22 and the second locking holes 24 are symmetrically distributed on the inner lock sleeve 20, so that the forces applied to the second locking members 22 during unlocking and locking are more balanced, and the reliability of the axial locking mechanism is further improved.

Preferably, in the present embodiment, three first locking members 21, three second locking members 22, three first locking holes 23 and three second locking holes 24 are symmetrically arranged, and correspondingly, three unlocking slots 32 are symmetrically arranged and distributed at intervals of 120 ° along the axial center of the inner lock sleeve 20.

As an alternative to this embodiment, the first locking member 21 may be a steel ball, and the diameter of the first locking member 21 is larger than the length of the first locking hole 23, so that at least one end of the first locking member 21 protrudes out of the first locking hole 23 to ensure the unlocking and locking operations of the axial locking mechanism.

Further, as an alternative embodiment of the present embodiment, the second locking member 22 may be a steel ball, and the diameter of the second locking member 22 is larger than the length of the second locking hole 24.

In a specific application, the first locking member 21 and/or the second locking member 22 may have other shapes, such as an ellipsoid shape, a capsule shape, or other shapes, so that the horizontal length of the first locking member 21 is greater than the length of the first locking hole 23, and the horizontal length of the second locking member 22 is greater than the length of the second locking hole 24.

Referring back to fig. 2 and 3, as an alternative embodiment of the present embodiment, an unlocking member 40 is connected to a rear end of the self-locking shaft 30, and when unlocking, the unlocking member 40 can rotate the self-locking shaft 30 to rotate the unlocking slot 32 of the self-locking shaft 30 to face the second locking member 22.

Further, as one optional implementation manner of this embodiment, a slot 33 is disposed at the rear end of the self-locking shaft 30, a socket 34 is disposed on the side wall of the slot 33, one end of the unlocking element 40 is a mating end capable of extending into the slot 33, the mating end is provided with a plugging protrusion 41 extending into the socket 34, the other end of the unlocking element 40 is an unlocking end, and the unlocking end is used for rotating in cooperation with a key or an unlocking device. In the specific application, a key can be used to be matched with the unlocking end and rotate, so that the self-locking shaft 30 is driven to rotate, the unlocking end can be connected with the unlocking device, for example, the knob 46 is connected to the unlocking end, and therefore when unlocking is performed, the unlocking piece 40 can be rotated through the knob 46, so that the unlocking piece 40 drives the self-locking shaft 30 to rotate, and unlocking is achieved.

Specifically, the socket 34 may be elongated such that the unlocking member 40 does not block the movement of the self-locking shaft 30 when the second locking member 22 pushes the self-locking shaft 30 downward. The unlocking member 40 may be cylindrical and the diameter of the mating end may be smaller to facilitate the mating with the self-locking shaft 30, while the knob end may be a non-circular shape formed by a cylindrical cutout to facilitate its attachment to the knob 46.

Specifically, referring to fig. 3, a first flange 35 is disposed on an outer circumferential side of the locking shaft 30, a second flange 42 is disposed on an outer circumferential side of the unlocking member 40, one end of the locking shaft elastic member 36 is connected to the first flange 35, and the other end of the locking shaft elastic member 36 is connected to the second flange 42.

More specifically, the inner side wall of the inner lock sleeve 20 has a stopper 27 for abutting against the first flange 35, and when the self-locking shaft 30 is reset upward, the first flange 35 may abut against the stopper 27 to prevent the self-locking shaft 30 from being disengaged from the inner lock sleeve 20.

Further, as an alternative embodiment of the present embodiment, the lock body 1 further includes a fixing base 50, the front end of the outer lock sleeve 10 is close to the lock pin 6, the rear end of the outer lock sleeve 10 is connected to the fixing base 50, the fixing base 50 is provided with a fixing base through hole 51 for the unlocking piece 40 to pass through, and the knob end of the unlocking piece 40 can extend out of the fixing base 50 through the fixing base through hole 51 and is connected to the knob 46.

Specifically, the holder through hole 51 may be a stepped hole in which the second flange 42 may be located.

Further, as an alternative embodiment of the present embodiment, the unlocking member 40 is provided with a positioning member, and the fixing base 50 is provided with a positioning groove 52 for an end portion of the positioning member to protrude into. In the locked state, the front end of the positioning member is located in the positioning groove 52; when unlocking, the unlocking piece 40 is rotated to make the front end of the positioning component separate from the positioning groove 52; after unlocking is completed, the unlocking piece 40 can be rotated again to enable the positioning component to be aligned with the positioning groove 52, and at the moment, the front end of the positioning component extends into the positioning groove 52 and gives a feedback prompt to an operator to remind the operator that the axial locking mechanism is reset.

Further, as an optional implementation manner of the positioning component of the present embodiment, the positioning component includes a positioning hole 45 disposed on the outer periphery of the unlocking piece 40, a positioning piece 44 disposed in the positioning hole 45, and a positioning elastic piece 43 connected to the positioning piece 44, one end of the positioning elastic piece 43 is connected to the bottom of the positioning hole 45, and the other end is connected to the positioning piece 44, so that the positioning piece 44 abuts against the fixing seat 50, the positioning groove 52 may be located on the side wall of the through hole, and the positioning groove 52 may be located on the same horizontal plane as the positioning hole 45, so that the positioning piece 44 extends into the positioning groove 52. In specific applications, the positioning component may also be disposed at other positions, and of course, the positioning component may also adopt other structures, such as a ball plunger and the like.

The embodiment of the invention also provides a lockset, which comprises the axial locking structure. The lockset in the embodiment can be applied to facilities such as a mechanism box, a terminal box or a control panel cabinet.

Referring to fig. 10 as an alternative embodiment of the present embodiment, fig. 10 shows an alternative embodiment of a lock, the lock of the present embodiment is a handle lock, and includes a handle 72 and the above-mentioned axial locking mechanism, the lock pin 6 can be fixedly mounted on the door frame 70, the lock body 1 can be mounted in the handle 72, the handle 72 can be mounted on the door panel 71, the handle 72 is provided with an unlocking hole 721, and a key can be inserted into the unlocking hole 721 to unlock. In a specific application, when the door panel 71 is closed to make the lock body 1 approach the lock pin 6 continuously, the insertion end 61 of the lock pin 6 is inserted into the lock body 1, when the door panel 71 is completely closed, the lock pin 6 is locked in the lock body 1, and at this time, the door panel 71 cannot be opened. During unlocking, a key can be inserted into the unlocking hole 721, the unlocking piece is rotated by the key, the unlocking piece can drive the self-locking shaft 30 to rotate and unlock the lock pin 6, and at the moment, under the action of the inner lock sleeve elastic piece 25, the lock body 1 can push the lock pin 6 outwards, so that the door panel 71 automatically pops open to complete unlocking.

Optionally, as another alternative of this embodiment, please refer to fig. 11, fig. 11 shows another embodiment of the lock, and the axial locking mechanism may also be applied to a padlock, specifically, the lock includes the above-mentioned axial locking mechanism, a lock body 80, and a lock hook 81 connected to the lock body 80, the lock pin 6 is connected to one end of the lock hook 81, the lock body 1 is disposed in the lock body 80, and one end of the lock hook 81 connected to the lock pin 6 may extend into the lock body 80 to cooperate with the lock body 1 and lock.

The invention also provides a lock unlocking method for unlocking or locking the axial locking lock, which comprises an unlocking step or/and a locking step,

the locking step comprises the following steps:

the locking pin 6 is inserted into the lock body 1 and pushes the inner sleeve 20 to move.

The second latch member 21 is moved to the sleeve latched position and the first latch member 22 is moved to the lock pin latched position.

The second latch member 22 extends into the latch groove 13 to lock the inner lock sleeve 20 to the outer lock sleeve 10, and the first latch member 21 extends into the stopper groove 62 to lock the lock pin 6 to the inner lock sleeve 20.

Specifically, the first end of the second locking member 22 abuts against the limiting protrusion 12 of the self-locking shaft 30 and drives the self-locking shaft 30 to move downward until the second locking member 22 moves to the locking slot 13, at which time the first end of the second locking member 22 retracts into the second locking hole 24 and the second end of the second locking member 22 extends into the locking slot 13, the self-locking shaft 30 returns upward and stops the locking protrusion 31 at the first end of the second locking member 22, so that the second end of the second locking member 22 cannot disengage from the locking slot 13, thereby locking the inner lock sleeve 20 to the outer lock sleeve 10. At the same time, the second end of the first latch member 21 is retracted into the first latch hole 23 under the stop of the stopper projection 12, and the first end of the first latch member 21 protrudes out of the first latch hole 23 and into the stopper groove 62, so that the lock pin 6 is locked to the inner lock case 20.

The unlocking step comprises the following steps:

the first latch member 21 is kept extended into the stopper groove 62 and the second latch member 22 is kept extended into the latch groove 13.

Specifically, a first end of the first latch member 21 extends into the limit groove 62 of the lock pin 6, and a second end of the first latch member 21 is located in the first latch hole 23. Meanwhile, the second end of the second locking member 22 is located in the locking groove 13, and the limiting projection 12 is stopped at the first end of the second locking member 22, so that the second end of the second locking member 22 cannot be separated from the locking groove 13.

Rotating the self-locking shaft 30 aligns the unlocking slot 32 with the second locking member 22.

The inner lock sleeve 20 is reset upward and pushes the second latch member 22 into the unlocking groove 32 to unlock the inner lock sleeve 20.

Specifically, the first end of the second latch member 22 is extended into the unlocking slot 32, and the second end of the second latch member 22 is disengaged from the latch slot 13 and retracted into the second latch hole 24, that is, the second latch member 22 is not caught between the inner jacket 20 and the outer jacket 10, releasing the locked state of the inner jacket 20.

The inner lock sleeve 20 is reset upwards, and the first locking piece 21 moves to the locking pin unlocking position and extends into the receding groove 11 under the action of the locking pin 6 to unlock the locking state of the locking pin 6.

Specifically, the first locking member 21 is moved to the position of the relief groove 11, the second end of the first locking member 21 extends into the relief groove 11, and the first end of the first locking member 21 exits the limiting groove 62 and retracts into the first locking hole 23, so that the locking state of the lock pin 6 is released, and the lock pin 6 can be withdrawn from the lock body 1.

The self-locking shaft 30 is rotated to reset the self-locking shaft 30, i.e., the unlocking slot 32 is no longer directed toward the locking slot 13.

According to the axial locking mechanism, the lockset and the unlocking method thereof provided by the embodiment of the invention, during locking, the lock pin 6 is inserted into the lock body 1, the lock pin 6 inserted into the lock body 1 is locked by the first locking piece 21, the inner lock sleeve 20 is locked by the second locking piece 22, so that the lock pin 6 and the lock body 1 are in a locked state, and the locking operation is convenient; when unlocking, the self-locking shaft 30 is rotated to align the unlocking slot 32 with the locking slot 13, the second locking member 22 releases the locking of the inner lock sleeve 20, the inner lock sleeve 20 is reset upwards, when the first locking member 21 moves to the position of the relief slot 11, the first locking member 21 releases the locking of the lock pin 6, the lock pin 6 is drawn out from the lock body 1, and the unlocking operation is convenient. And need not to use the torsional spring at the in-process of unblock and shutting, can make the axiality between each part of tool to lock keep unanimous, improve the stability and the reliability of tool to lock.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (8)

1. The utility model provides an axial blocked mechanical system, includes lock body and lockpin, the one end of lockpin is for being used for inserting the end of inserting in the lock body, it is provided with the spacing groove to insert the end, its characterized in that, the lock body includes:

an outer lock sleeve;

the inner lock sleeve is arranged in the outer lock sleeve in an axial sliding mode and can be pushed by the lock pin in the axial direction, and a first locking hole and a second locking hole are formed in the side wall of the inner lock sleeve;

a locking component including a first locking member disposed in the first locking hole and adapted to extend into the limiting groove and move axially with the inner lock sleeve to a locking position to lock the locking pin to the inner lock sleeve, and a second locking member disposed in the second locking hole and movable axially with the inner lock sleeve to a locking position to lock the inner lock sleeve to the outer lock sleeve;

a self-locking shaft, the front end of the self-locking shaft extending into the inner lock sleeve and cooperating with the second locking piece to lock the inner lock sleeve to the outer lock sleeve, the self-locking shaft being rotatable relative to the outer lock sleeve to unlock the inner lock sleeve;

the second locking piece is provided with a first end and a second end, and the outer peripheral side of the self-locking shaft is provided with a locking protrusion which is used for abutting against the first end to push the second end into the locking groove;

the outer peripheral side of the self-locking shaft is also provided with an unlocking groove for the first end to extend into so as to unlock the inner lock sleeve when the self-locking shaft rotates to be aligned with the second locking piece; or the inner side wall of the outer lock sleeve is also provided with an unlocking groove for the second end to extend into to unlock the inner lock sleeve when the inner side wall of the outer lock sleeve rotates to be aligned with the second locking piece;

an elastic member including an inner lock sleeve elastic member connected to the inner lock sleeve and a self-locking shaft elastic member connected to the self-locking shaft;

the outer lock sleeve, the inner lock sleeve, the self-locking shaft and the elastic component are coaxially arranged; the inner side wall of the outer lock sleeve is provided with an escape groove and a locking groove, the escape groove is used for allowing the first locking piece to stretch into to unlock the locking pin when the first locking piece moves to the locking pin unlocking position, and the locking groove is used for allowing the second locking piece to stretch into to lock the inner lock sleeve when the second locking piece moves to the lock sleeve locking position.

2. The axial locking mechanism as recited in claim 1, wherein the first locking member has a first end and a second end, the inner sidewall of the outer sleeve is provided with a stop protrusion at the locking position of the locking pin, the stop protrusion abutting against the inner sleeve and abutting against the second end to push the first end into the stop groove, the relief groove is an annular groove at an end of the outer sleeve adjacent to the locking pin, and the unlocking position of the locking pin is disposed above and below the locking position of the locking pin.

3. The axial locking mechanism as recited in claim 1, wherein the first locking member is provided in at least two, each of the first locking members being symmetrically disposed about the inner sleeve; and/or the second locking parts are provided with at least two, and the second locking parts are symmetrically distributed on the inner lock sleeve.

4. The axial locking mechanism of claim 1, wherein the first locking member is a steel ball, and wherein the diameter of the first locking member is greater than the length of the first locking hole; and/or the second locking piece is a steel ball, and the diameter of the second locking piece is larger than the length of the second locking hole.

5. The axial locking mechanism as recited in any one of claims 1 to 4, wherein an unlocking member for rotating the self-locking shaft is coupled to an end of the self-locking shaft facing away from the locking pin.

6. The axial locking mechanism as recited in claim 5, wherein an end of the shaft facing away from the locking pin is provided with a slot, a sidewall of the slot is provided with a socket, an end of the unlocking member is a mating end extending into the slot, the mating end is provided with a mating protrusion extending into the socket, and an opposite end of the unlocking member is a knob end connected with a knob.

7. A lock comprising an axial locking mechanism as claimed in any one of claims 1 to 6.

8. An unlocking method of a lock for unlocking or locking a lock according to claim 7, characterized in that the unlocking method comprises an unlocking step or/and a locking step;

the latching step includes:

the lock pin is inserted into the lock body and pushes the inner lock sleeve to move;

the second latch member moves to the sleeve latched position and the first latch member moves to the lock pin latched position;

the second locking piece extends into the locking groove to lock the inner lock sleeve on the outer lock sleeve, and the first locking piece extends into the limiting groove to lock the lock pin on the inner lock sleeve;

the unlocking step includes:

the first locking piece keeps extending into the limiting groove and the second locking piece keeps extending into the locking groove;

rotating the self-locking shaft to align the unlocking slot with the second locking member;

the second locking piece is separated from the locking groove and extends into the unlocking groove to release the locking state of the inner lock sleeve;

the inner lock sleeve is reset upwards, and the first locking piece moves to a locking pin unlocking position and extends into the receding groove under the action of the locking pin so as to release the locking state of the locking pin.

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