CN212317691U - Anti-pulling lock knob and anti-misoperation padlock with same - Google Patents

Abstract

The utility model is suitable for a tool to lock field discloses an prevent dialling lock and turn round and have this prevent dialling lock and turn round prevent mistake padlock, prevent dialling the lock turn round including the lock turn round the body with set up in the lock turn round the periphery side of this end of body and can with the key complex prevent dialling the arch, prevent dialling bellied both sides and be inclined plane or curved surface. The utility model also discloses a prevent mistake padlock, including the lock body that has the lockhole, connect in the latch hook subassembly of lock body, set up in just the lockable in the lock body the spring bolt subassembly and the above-mentioned anti-dial lock of latch hook subassembly are turned round, the spring bolt is prevented dialling the lock and is turned round set up in just can rotate along with the key in the lock body in order to stir the spring bolt subassembly, the lock turn round the one end with the spring bolt subassembly is connected. The utility model provides a prevent dialling the lock and turn round and have this prevent dialling the lock and turn round prevent mistake padlock, prevent dialling the lock and turn round can prevent to a certain extent that the lock is turned round and is stirred by sharp-pointed foreign matter and lead to the padlock by the unblock, have the characteristics that factor of safety is high.

Description

Anti-pulling lock knob and anti-misoperation padlock with same

Technical Field

The utility model belongs to the tool to lock field especially relates to a prevent dialling that the lock is turned round and have this prevent dialling that the lock is turned round prevent mistake padlock.

Background

The padlock has the characteristics of simple structure, convenient operation and the like, so the padlock is widely applied to various fields, particularly to electric equipment such as a transformer substation, a power distribution room, a ring main unit and the like in the electric power field, and can be used as an electric anti-misoperation locking lockset.

Current application number is 201520638755.4, the patent of the granted announcement date for 2016 year 3 month 2 discloses a dustproof padlock, dustproof padlock in this scheme includes the lock body, the lock is turned round, spring bolt subassembly and catch subassembly, dustproof padlock in this scheme utilizes key and lock to turn round the cooperation and rotate the lock and turn round, the lock is turned round and is stirred the spring bolt, the spring bolt has broken away from the padlock groove on the catch after taking place lateral displacement, the catch does not receive spacingly, one side of catch pops out the lock body, dustproof padlock realizes the unblock function.

Be provided with the convex key fixture block of platykurtic on the lock in this application, this key fixture block is in order to cooperate with the key, make the key can rotate the lock and turn round, but the key fixture block of platykurtic also makes the lock turn round very easily and is stirred by sharp thing (because area of contact is big when sharp thing and key fixture block contact, the stress point leads to the lock to turn round easily to be stirred many), make the padlock opened under the condition of abnormal authorization, no authorized personnel just get into between electrified very easily, not only influence electrical equipment's normal operating, can take place the electric shock accident even and lead to the casualties.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of above-mentioned technical problem at least, provide one kind and prevent dialling the lock and turn round and have this prevent dialling the lock and turn round prevent mistake padlock, prevent dialling the lock and turn round can prevent to a certain extent that the lock from turning round and being stirred by sharp-pointed foreign matter and the tool to lock that leads to is by the unblock, have the characteristics that factor of safety is high.

The technical scheme of the utility model is that: the anti-poking lock knob comprises a lock knob body and an anti-poking bulge which is arranged on the outer peripheral side of the end of the lock knob body and can be matched with a key, wherein two sides of the anti-poking bulge are inclined planes or curved surfaces.

Optionally, a connecting surface between two sides of the anti-pick protrusion is a curved surface.

Optionally, the anti-pick protrusion is semi-oval or semi-circular.

Optionally, one end of the lock knob body is provided with a first convex edge, and the other end of the lock knob body is provided with a second convex edge; the anti-poking protrusion and the second outer convex edge are provided with a gap, and the anti-poking protrusion faces towards one side of the second outer convex edge and is provided with a chamfer or a fillet or a curved surface.

Optionally, the anti-poking protrusion is provided with one or two or more than one along the longitudinal direction of the lock knob body, and/or the anti-poking protrusion is symmetrically provided on two sides of the lock knob body.

The utility model also provides a prevent mistake padlock, including the lock body that has the lockhole, connect in the latch hook subassembly of lock body, set up in just the lockable in the lock body the spring bolt subassembly of latch hook subassembly, prevent mistake padlock and still include foretell anti-dial lock knob, anti-dial lock knob set up in just can rotate along with the key in the lock body in order to stir the spring bolt subassembly, the lock knob body is kept away from prevent dialling bellied one end with the spring bolt subassembly is connected, it is located to prevent dialling the arch the lockhole.

Optionally, the side wall of the lock hole is provided with a positioning pin, and the positioning pin faces the anti-poking protrusion.

Optionally, the spring bolt subassembly is including transversely arranging in spring bolt in the lock body with be used for the spring bolt spring that the spring bolt resets, the one end of spring bolt is provided with the lock and turns round the cooperation groove, the lock turn round the body with the one end that the spring bolt subassembly is connected is provided with and stretches into the lock is turned round the cooperation groove and is used for stirring the spring bolt cooperation portion of spring bolt, spring bolt cooperation portion be for set up in the lock is turned round the non-axle center position of body and is located semi-cylindrical lug or rectangle lug.

Optionally, the lock hook assembly includes a lock hook with one end hinged to the lock body, an abutting block connected to the hinged end of the lock hook, and a lock hook spring connected to the abutting block, the hinged end of the lock hook is provided with a lock tongue mating groove, and the other end of the lock tongue is provided with a lock hook mating portion which can extend into the lock tongue mating groove to lock the lock hook.

Optionally, prevent mistake padlock still includes the key, the key include the key body with set up in the cooperation structure is turned round to the lock of key body one end, the cooperation structure is turned round including being used for supplying the cooperation hole that the tip of the body was turned round to the lock stretched into, be used for the confession prevent dialling protruding with the draw-in groove that the locating pin stretched into and with the draw-in groove intercommunication just is used for the confession the activity of locating pin leaves the key groove, the width of draw-in groove is greater than the locating pin with prevent dialling bellied width.

The utility model provides a prevent dialling the lock and turn round and have this prevent dialling the lock and turn round prevent mistake padlock, thereby prevent mistake padlock on the one hand the accessible prevent dialling protruding and key cooperation turn round the unblock with the rotation lock, on the other hand, when using sharp-pointed foreign matter to dial the lock and turn round, have the contact area and the stress point between the protruding reducible and sharp-pointed foreign matter of preventing dialling of inclined plane or curved surface structure to prevent that the lock from turning round and being stirred by the foreign matter, have the characteristics that factor of safety is high.

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 cross-sectional view of an anti-misoperation padlock provided by an embodiment of the present invention;

fig. 2 is a schematic perspective view of a lock knob of an anti-misoperation padlock according to an embodiment of the present invention;

fig. 3 is a front view of a knob of an anti-misoperation padlock provided by an embodiment of the present invention;

fig. 4 is a side view of a knob of an anti-misoperation padlock according to an embodiment of the present invention;

fig. 5 is a top view of a knob of an anti-misoperation padlock according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a lock knob of another embodiment of the padlock according to an embodiment of the present invention;

fig. 7 is a top view of another embodiment of a lock knob of an anti-misoperation padlock according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of a key of an anti-misoperation padlock according to an embodiment of the present invention;

fig. 9 is a top view of a key for preventing incorrect padlock according to the embodiment of the present invention;

fig. 10 is a partial cross-sectional view of a key of an anti-misoperation padlock according to an embodiment of the present invention after being inserted into a keyhole.

In the figure:

1. a lock body; 11. a lock hole; 12. positioning pins;

2. a latch hook assembly; 21. a latch hook; 211. the lock tongue is matched with the groove; 22. a propping block; 23. a latch hook spring; 24. a lock hook hole; 241. a limiting bulge; 25. a lock hook blind hole;

3. a latch bolt assembly; 31. a latch bolt; 311. a lock-knob fitting groove; 312. latch hook mating part 32, latch bolt spring; 33.

a lock tongue hole;

4. a lock knob body; 41. a first convex edge; 42. a second convex edge; 43. a bolt mating part; 44. a key fitting portion; 441. a poke-proof bulge; 4411. a side surface; 4412. a connecting surface; 45. the convex edge is clamped and hung; 46. a lock button hole;

5. a key; 51. a key body; 52. a lock-knob fit structure; 521. a mating hole; 522. a card slot; 523. a key groove is reserved.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in 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", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., it is based on the orientation or positional relationship shown in the drawings or the conventional placement state or use state, and it is only for convenience of description and simplification of the description, but does not indicate or imply that the structures, features, devices or elements referred to must have a specific orientation or positional relationship, nor must be constructed and operated in a specific orientation, and therefore, should not 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 detailed description may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and various combinations of features/embodiments are not separately described in order to avoid unnecessary repetition in the present disclosure.

As shown in fig. 1 and fig. 2, the embodiment of the utility model provides a prevent mistake padlock, including the lock body 1 that has lockhole 11, connect in the latch hook subassembly 2 of lock body 1, set up in lock body 1 and the spring bolt subassembly 3 that can lock latch hook subassembly 2, set up in lock body 1 and can rotate along with key 5 in order to stir the lock button 4 of spring bolt subassembly 3, the one end that the lock was turned round 4 is connected with spring bolt subassembly 3, the periphery side of the other end that the lock was turned round 4 is provided with can be with key 5 complex prevent dialling protruding 441, prevent dialling protruding 441 and be located lockhole 11, and prevent dialling two sides 4411 of protruding 441 for inclined plane or curved surface (refer to fig. 5). On one hand, the anti-poking bulge 441 positioned in the lock hole 11 can be matched with the key 5 inserted into the lock hole 11 to rotate the lock knob 4, and the rotated lock knob 4 can poke the bolt assembly 3 to unlock or lock the lock hook assembly 2, so that unlocking and locking of the padlock are realized; on the other hand, use sharp-pointed foreign matter to stretch into lockhole 11 and when trying to stir lock knob 4 at unauthorized personnel, the protruding 441 of preventing dialling that has inclined plane or curved surface structure can effectual reduction sharp-pointed foreign matter and prevent dialling the area of contact and the stress point of protruding 441, after sharp-pointed foreign matter and the surface contact of preventing dialling protruding 441 and applied external force, sharp-pointed foreign matter is easy slipping on the surface of preventing dialling protruding 441, be difficult to find reliable stress point, thereby avoid lock knob 4 to be stirred and the unblock by sharp-pointed foreign matter, have the high characteristics of factor of safety. It should be noted that, this embodiment is taken as an example to prevent the wrong padlock, and is not the restriction to the scene of preventing dialling the lock knob and using, and the anti-dialling lock knob that this application provided also can be applied to various locksets, for example: position lock, fixed lock, ground wire lock, etc.

In a specific application, as shown in fig. 2 to 4, the knob body may be a cylinder structure, and a key fitting portion 44 is disposed at one end of the knob body that is fitted with the key 5, and the anti-pulling protrusion 441 may be disposed at the key fitting portion 44. The anti-poking protrusion 441 and the key matching part 44 can be integrally formed or fixedly connected with the lock knob 4, the key matching part 44 can be of a cylindrical structure with the same diameter as that of the main body of the lock knob 4, and can also be of a cylindrical structure with different diameters, and the anti-poking protrusion 441 can be flush with the end face of the lock knob 4, so that the force application point can be reduced, and the anti-theft effect of the padlock can be improved. In the concrete application, the end face of the lock knob 4 provided with the anti-poking protrusion 441 end can be of an arc or hemispherical structure, so that the contact area and the stress point of a sharp foreign matter and the lock knob are further reduced, and the safety factor of the padlock is further improved.

Specifically, as shown in fig. 5, a connection surface 4412 between both sides of the anti-pick protrusion 441 may be a curved surface to further reduce a contact area and a force point between a sharp foreign object and the anti-pick protrusion 441, thereby further improving a safety factor of the padlock.

Specifically, as shown in fig. 6, as another alternative embodiment of this embodiment, anti-pick protrusion 441 may be a semi-oval or semi-circular shape, and both surfaces of the semi-oval and semi-circular structures are curved surfaces or arc structures, which may also effectively reduce the contact area and force points between a sharp foreign object and anti-pick protrusion 441, thereby preventing lock knob 4 from being pulled by the sharp foreign object to unlock. In a specific application, the number and the positions of the anti-poking protrusions 441 can be set according to actual requirements, as shown in fig. 6, 2 anti-poking protrusions 441 can be longitudinally arranged along the lock knob 4.

Specifically, as shown in fig. 1, a lock knob hole 46 for accommodating rotation of the lock knob 4 and communicating with the lock hole 11 is provided in the lock body 1, and the diameter of the lock knob hole 46 may be smaller than that of the lock hole 11; a first outer convex edge 41 is arranged at one end close to the lock knob 4, a second outer convex edge 42 is arranged at the other end close to the lock knob 4, the first outer convex edge 41 and the second outer convex edge 42 can be both positioned in the lock knob hole 46, and the second outer convex edge 42 can be flush with the hole bottom of the lock hole 11, so that dust and other sundries are prevented from entering the lock body 1 from the lock knob hole 46, the padlock has certain dustproof performance, and the service life of the padlock is prolonged; anti-pick protrusion 441 may be coupled to second ledge 42 in one embodiment; in this embodiment, anti-poking protrusion 441 may not be connected to second outer protruding edge 42, that is, a gap is formed between second outer protruding edge 42 and anti-poking protrusion 441, so as to further reduce the contact area and the stress point between anti-poking protrusion 441 and the sharp foreign object, and one side of anti-poking protrusion 441 facing second outer protruding edge 42 is provided with a chamfer, such a design, when an unauthorized person uses a hook fitting with the gap to poke lock knob 4, lock knob 4 may not be poked due to the existence of the chamfer, and thus the safety coefficient of the padlock is improved.

In a specific application, as shown in fig. 1 and fig. 2, a locking protrusion edge 45 may be disposed between the first protruding edge 41 and the second protruding edge 42, and a locking protrusion (not shown) slidably connected to the locking protrusion edge 45 may be disposed on a hole wall of the knob hole 46, and the knob 4 is installed in the knob hole 46 by the locking protrusion edge 45 matching with the locking protrusion. Of course, the lock knob 4 can also be installed in the lock knob hole 46 by directly engaging the first protruding edge 41 with the engaging protrusion. In practical applications, the hooking protrusion may be installed from the outside of the lock body 1 by using a positioning pin and extend out of the hole wall of the knob hole 46, so as to cooperate with the hooking protrusion 46 and limit the knob 4.

Specifically, as shown in fig. 6, one or two or more anti-dial protrusions 441 may be disposed along the longitudinal direction of the knob 4, and two or more anti-dial protrusions 441 may be disposed to have a plurality of force-bearing points with the key 5, so that the anti-dial protrusions 441 are more reliably and stably engaged with the key 5.

Specifically, as shown in fig. 7, the anti-pick protrusions 441 may be symmetrically disposed on both sides of the knob 4, so that the key 5 and the anti-pick protrusions 441 are more uniformly stressed when being matched. In a specific application, the anti-pick protrusions 441 may be disposed on two sides of the key matching portion 44 respectively.

Specifically, as shown in fig. 1 and 10, a side wall of the lock hole 11 is provided with a positioning pin 12, and the positioning pin 12 is directed toward the anti-pick projection 441, that is, the positioning pin 12 is located below the key fitting portion 44 in the padlock locked state, and the positioning pin 12 is directed below the anti-pick projection 441. Due to the design, the positioning pin 12 can shield the key matching part 44 and the anti-poking protrusion 441 when the padlock is in a locked state, and unauthorized people can be prevented from using sharp foreign matters to extend into the lock hole 11 and poke the anti-poking protrusion 441 to a certain extent. In this embodiment, the positioning pin 12 is disposed on the sidewall of the lock hole 11 toward which the anti-poking protrusion 441 faces, and certainly, in practical applications, the positioning pin 12 may also be disposed at any position of the sidewall of the lock hole 11, and only the anti-poking protrusion 441 needs to be shielded.

Specifically, as shown in fig. 1, the lock body 1 is provided with a bolt hole 33 for accommodating the bolt assembly 3 and communicating with the lock bolt hole 46, the bolt assembly 3 includes a bolt 31 transversely disposed in the lock body 1 and a bolt spring 32 for resetting the bolt 31, the bolt 31 can move left and right in the bolt hole 33 (in other embodiments, the bolt can move up and down or move in other manners in the bolt hole 33), one end of the bolt 31 is provided with a lock bolt matching groove 311, one end of the lock bolt 4 is provided with a bolt matching portion 43 extending into the lock bolt matching groove 311 and used for toggling the bolt 31, the bolt matching portion 43 rotates with the lock bolt 4 to toggle the bolt 31 to move left and right in the lock body 1 through the lock bolt matching groove 311, so as to unlock or lock the shackle assembly 2. In specific applications, the latch spring 32 can be always in a compressed state, so that the lock-torque engaging groove 311 always abuts against the latch engaging portion 43, and the latch 31 always abuts against the latch hook assembly 2. In the present embodiment, the first protruding edge 41 may be flush with the sidewall of the latch hole 33 to prevent dust and other impurities from falling into the latch hole 33, thereby improving the life of the padlock.

In a specific application, the tongue engaging portion 43 may be a semi-cylindrical protrusion or a rectangular protrusion disposed at a non-axial position of the knob 4. Due to the design, the lock bolt matching part 43 can extrude the side wall of the lock knob matching groove 311 when rotating along with the lock knob 4 so as to stir the lock bolt 31 to move left and right, and therefore the lock hook assembly 2 is unlocked.

In specific application, as shown in fig. 1, the diameter of the side of the dead bolt hole 33 for installing the dead bolt spring 32 may be larger than the side without installing the dead bolt spring 32, one end of the dead bolt spring 32 is connected to the dead bolt 31, and the other end of the dead bolt spring 32 is connected to the lock body 1, so that the dead bolt spring 32 can be smoothly compressed. Of course, a protrusion may be provided on the sidewall of the latch hole 33, and the latch spring 32 may be connected to the protrusion to achieve the same effect.

Specifically, as shown in fig. 1, the shackle component 2 includes a shackle 21 having one end hinged to the lock body 1, a resisting block 22 connected to a hinged end of the shackle 21, and a shackle spring 23 connected to the resisting block 22, the lock body 1 is provided with a shackle hole 24 for accommodating the hinged end of the shackle 21 and communicating with the shackle hole 33, the lock body 1 is further provided with a shackle blind hole 25 for accommodating and limiting the other end of the shackle 21, the hinged end of the shackle 21 is provided with a locking tongue mating groove 211, and the other end of the locking tongue 31 is provided with a shackle mating portion 312 which can extend into the shackle mating groove 211 to lock the shackle 21. When the lock knob 4 rotates and drives the lock tongue matching portion 43 to press the side wall of the lock knob matching groove 311, the lock hook matching portion 312 moves to one side along with the lock tongue 31 and is separated from the lock tongue matching groove 211, the lock hook 21 which is not limited at this time is pushed by the lock hook spring 23 and is upwards popped, the other end (non-hinged end) of the lock hook 21 extends out of the lock hook blind hole 25, at this time, the lock hook 21 can rotate around the hinged end to unlock the padlock, in the specific application, a locking groove (not marked in the figure) can be arranged below the lock tongue matching groove 211, and after the lock hook matching portion 312 is separated from the lock tongue matching groove 211 and the lock hook 21 moves upwards, the lock hook matching portion 312 can be inserted into the locking groove below the lock tongue matching groove 211 to limit the up and down movement of the lock hook 21, so. When the padlock is locked, the lock tongue 31 can be moved to the unlocking position by using the key 5, the other end (non-hinged end) of the lock hook 21 is aligned to the lock hook blind hole 25 and pressed down, the hinged end of the lock hook 21 compresses the lock hook spring 23 and moves downwards until the lock tongue matching groove 211 moves to the position of the lock hook matching part 312, meanwhile, the lock hook matching part 312 is clamped into the lock tongue matching groove 211 under the elastic force of the lock tongue spring 32, and at the moment, the lower end surface of the lock hook matching part 312 abuts against the side wall of the lock tongue matching groove 211 to lock the lock hook 21 on the lock body 1, so that the locking of the padlock is realized. In other specific applications, the upper end surface of the shackle mating portion 312 may be provided with a chamfer, or the upper end surface is a curved surface, so that when the shackle 21 moves downward, the shackle mating portion 312 is guided by the chamfer or the curved surface to be clamped into the bolt mating groove 211, so that the shackle 21 is locked more smoothly, and the reliability of the padlock is improved.

In a specific application, the side wall of the lock hook hole 24 may be provided with a limiting protrusion 241 for limiting the upward movement of the abutting block 22, the limiting protrusion 241 is located above the abutting block 22, and the distance between the limiting protrusion 241 and the abutting block 22 needs to be greater than or equal to the depth of the lock hook blind hole 25. By the design, the lock hook 21 can be prevented from being completely separated from the lock hook hole 24 due to external force after unlocking under the condition that unlocking is not influenced, so that the reliability of the padlock is improved. In this embodiment, the shackle hole 24 may be a through hole penetrating through the lock body 1, and an end of the shackle hole 24 located at the bottom of the lock body 1 is blocked by a plug (see fig. 1, which is not labeled).

In specific application, the abutting block 22 may be integrally formed or fixedly connected to the bottom of the hinged end of the lock hook 21, the lock hook 21 may be in a U-shaped structure, and the lock hook hole 24 and the lock hook blind hole 25 are respectively located at two sides of the lock body 1.

Specifically, as shown in fig. 8 and 9, the anti-error padlock further includes a key 5, the key 5 includes a key body 51 and a knob fitting structure 52 disposed at one end of the key body 51, the knob fitting structure 52 includes a fitting hole 521 for allowing one end of the knob 4 to extend into, a slot 522 for allowing the anti-poking protrusion 441 and the positioning pin 12 to extend into, and a key retaining slot 523 communicated with the slot 522 and used for allowing the positioning pin 12 to move, and a width of the slot 522 is greater than widths of the positioning pin 12 and the anti-poking protrusion 441. When unlocking, the key 5 is inserted into the lock hole 11, the end part (i.e. the key matching part 44) of the lock knob 4 extends into the matching hole 521, the anti-poking protrusion 441 extends into the slot 522, and the positioning pin 12 extends into the key retaining slot 523 along the slot 522 (see fig. 10); the key 5 is rotated along the unlocking direction, the positioning pin 12 moves in the key retaining groove 523, the anti-poking protrusion 441 abuts against the side wall of the clamping groove 522 and drives the lock knob 4 to rotate under the poking of the key 5, so that the padlock is unlocked.

In specific application, the slot 522 can be adjusted according to the number and the setting position of the anti-poking protrusions 441, the length and the position of the key retaining groove 523 can be set according to the unlocking angle and the position of the positioning pin 12, and in this embodiment, the key retaining groove 523 is an arc-shaped groove which is located at the tail end of the slot 522 and is transversely arranged.

In specific application, the padlock in the embodiment can be unlocked only by the existing key 5 (in the background art, the key with the application number of 201520638755.4), and a new key does not need to be additionally produced, so that the production cost can be reduced to a certain extent.

The embodiment of the utility model provides a prevent dialling the lock and turn round and have this prevent dialling the lock and turn round prevent mistake padlock, thereby prevent mistake padlock on the one hand accessible prevent dialling protruding 441 and key 5 cooperation to turn round 4 unblocks with the rotation lock, on the other hand, when using sharp-pointed foreign matter to dial the lock and turn round 4, have the contact area and the stress point between the protruding 441 reducible and sharp-pointed foreign matter of preventing dialling of inclined plane or curved surface structure to prevent that the lock from turning round 4 and being stirred by the foreign matter, have the characteristics that factor of safety is high.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims (10)

1. The anti-poking lock knob is characterized by comprising a lock knob body and an anti-poking bulge which is arranged on the outer peripheral side of the end of the lock knob body and can be matched with a key, wherein two sides of the anti-poking bulge are inclined planes or curved surfaces.

2. The anti-pick lock knob as claimed in claim 1, wherein the joint surface between both sides of the anti-pick protrusion is a curved surface.

3. The anti-pick lock knob of claim 1 wherein said anti-pick protrusion is semi-oval or semi-circular.

4. The anti-pick lock knob of claim 1, wherein one end of the lock knob body is provided with a first convex edge, and the other end of the lock knob body is provided with a second convex edge; the anti-poking protrusion and the second outer convex edge are provided with a gap, and the anti-poking protrusion faces towards one side of the second outer convex edge and is provided with a chamfer or a fillet or a curved surface.

5. The anti-pick lock knob according to claim 1, wherein one or two or more anti-pick protrusions are arranged along a longitudinal direction of the lock knob body, and/or the anti-pick protrusions are symmetrically arranged on two sides of the lock knob body.

6. The utility model provides a prevent mistake padlock, including the lock body that has the lockhole, connect in the latch hook subassembly of lock body, set up in the lock body and the lockable the spring bolt subassembly of latch hook subassembly, its characterized in that, prevent mistake padlock still include as in any of claims 1 to 5 prevent dialling the lock knob, the lock knob body set up in the lock body and can rotate along with the key in order to dial the spring bolt subassembly, the lock knob body is kept away from prevent dialling bellied one end with the spring bolt subassembly is connected, prevent dialling the arch and be located in the lockhole.

7. An anti-misoperation padlock according to claim 6, wherein the side wall of the lock hole is provided with a positioning pin, and the positioning pin faces the anti-dialing protrusion.

8. The padlock of claim 6, wherein the locking bolt assembly comprises a locking bolt transversely arranged in the lock body and a locking bolt spring for resetting the locking bolt, a lock knob matching groove is formed in one end of the locking bolt, a locking bolt matching portion extending into the lock knob matching groove and used for shifting the locking bolt is arranged at one end of the lock knob body connected with the locking bolt assembly, and the locking bolt matching portion is a semi-cylindrical protruding block or a rectangular protruding block arranged at a non-axial center position of the lock knob body.

9. The error-preventing padlock of claim 8, wherein the shackle assembly comprises a shackle having one end hinged to the lock body, an abutting block connected to the hinged end of the shackle, and a shackle spring connected to the abutting block, the hinged end of the shackle is provided with a locking tongue engaging groove, and the other end of the locking tongue is provided with a shackle engaging portion which can extend into the locking tongue engaging groove to lock the shackle.

10. The error-preventing padlock according to claim 7, further comprising a key, wherein the key comprises a key body and a lock knob matching structure arranged at one end of the key body, the lock knob matching structure comprises a matching hole for allowing an end of the lock knob body to extend into, a clamping groove for allowing the anti-poking protrusion and the positioning pin to extend into, and a key retaining groove communicated with the clamping groove and used for allowing the positioning pin to move, and the width of the clamping groove is greater than the width of the positioning pin and the anti-poking protrusion.

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