CN211776623U - Lock for cabinet - Google Patents

Abstract

The utility model is suitable for a cabinet door lock, disclose a tool to lock for rack, including lock seat, lock handle and unblock subassembly, the unblock subassembly includes the locking lever of rotation connection in the lock seat and can rotate along with the locking lever and be used for the fender piece of door switching, the one end of locking lever articulates in the one end of lock handle, the other end of lock handle can keep away from or be close to the lock seat, the tool to lock for rack still includes the installation annex, the installation annex includes pad spare and locating part that has the inner chamber, the locating part is connected in the lock seat through first fastener; one end of the cushion piece is positioned in the inner cavity and is connected to the lock rod through the first rotation stopping structure, and the other end of the cushion piece extends out of the limiting piece and is connected to the stopper through the second rotation stopping structure; the mounting accessory also comprises positioning pieces which are respectively arranged on two sides of the door body together with the lock seat, and the positioning pieces are connected to the lock seat through second fastening pieces; the lock bar, the cushion member and the stopper member are connected by a third fastener. The installation does not need to use a cutting machine, the installation operation is low in danger, the lockset is strong in universality and wide in application range.

Description

Lock for cabinet

Technical Field

The utility model belongs to the tool to lock field especially relates to a tool to lock for rack for cabinet door.

Background

The cabinet is generally made of cold-rolled steel plates or alloys and used for storing computers and related control equipment, can provide protection for the storage equipment, shields electromagnetic interference, and arranges the equipment orderly and orderly, thereby facilitating the subsequent maintenance of the equipment.

The cabinet lock that is used for communication rack or electric power rack on the market at present is various, and the cabinet lock that different producers produced all has the difference in structure, shape and size, and generally all need trompil on the cabinet door when the tool to lock is installed on the cabinet door, because the tool to lock that each producer produced is different, and the size and the shape of trompil also correspondingly are different on the cabinet door. When the old lock is damaged and needs to be replaced with a new lock, the new lock and the old lock are different in shape and size, and the new lock cannot be directly installed on the cabinet door, so that inconvenience is brought to customers.

When changing the tool to lock, when new tool to lock size is too little, the cabinet door can not carry on spacingly to new tool to lock, when new tool to lock size is too big, then need use the cutting machine to cut the hole on the cabinet door, the cutting machine belongs to high-risk operation equipment, the emergence that leads to the incident can be sent out to the misoperation to the spark that produces during the cutting arouses unforeseeable consequence easily, simultaneously, because the operation space is limited, leads to the operation degree of difficulty increase.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of above-mentioned technical problem at least, provide a tool to lock for rack, need not to use the cutting machine during its installation, the installation operation is dangerous low to the tool to lock commonality is strong, and application scope is wide.

The technical scheme of the utility model is that: a lock for a cabinet comprises a lock seat, a lock handle and an unlocking assembly, wherein the unlocking assembly comprises a lock rod which is rotatably connected to the lock seat and a blocking piece which can rotate along with the lock rod and is used for opening and closing a door, one end of the lock rod is hinged to one end of the lock handle, the other end of the lock handle can be far away from or close to the lock seat, the lock for the cabinet further comprises an installation accessory, the installation accessory comprises a cushion piece and a limiting piece with an inner cavity, and the limiting piece is connected to the lock seat through a first fastening piece; one end of the cushion piece is positioned in the inner cavity and connected to the lock rod through a first rotation stopping structure, or the cushion piece and the lock rod are integrally formed, and the other end of the cushion piece extends out of the limiting piece and is connected to the stopper through a second rotation stopping structure; the mounting accessory further comprises positioning pieces which are respectively arranged on two sides of the door body together with the lock seat.

Optionally, the first rotation stopping structure includes a first rotation stopping hole arranged in the pad and a first rotation stopping protrusion arranged in the lock rod and inserted into the first rotation stopping hole, the first rotation stopping protrusion is of a non-circular structure, and the pad can rotate along with the lock rod under the control of the first rotation stopping structure.

Optionally, the second rotation stopping structure includes a second rotation stopping hole disposed in the stopper and a second rotation stopping protrusion disposed in the pad and inserted into the second rotation stopping hole, the second rotation stopping protrusion is of a non-circular structure, and the stopper can rotate with the pad under the control of the second rotation stopping structure.

Optionally, the positioning member is connected to the lock seat by a second fastening member; the lock rod, the cushion piece and the stopper are connected through a third fastener.

Optionally, a first limiting structure is disposed between the pad and the limiting member, the first limiting structure includes a limiting block disposed at an outer side of the pad and a limiting ring disposed at an end of the limiting member close to the stopper, and the limiting block abuts against the limiting member to prevent the stopper from completely separating from the inner cavity from an end of the limiting ring.

Optionally, a second limiting structure is arranged between the pad and the limiting part, the second limiting structure comprises a strip-shaped protrusion arranged on the outer side of the pad, and the limiting ring is provided with a notch for accommodating the strip-shaped protrusion.

Optionally, a connecting structure for connection is arranged between the lock rod and the lock handle, the connecting structure comprises a connecting groove arranged at one end of the lock rod and a connecting block arranged on the lock handle, and the connecting block and the connecting groove are rotatably connected through a connecting piece;

or the connecting structure comprises a connecting block arranged at one end of the lock rod and a connecting groove arranged on the lock handle.

Optionally, the spread groove has two end planes that set up relatively, the end plane all is provided with the draw-in groove, the connecting block is provided with the through-hole, be provided with two locating pieces that connect through the elastic component in the through-hole, the lock is being close to when the lock seat, the locating piece with the end plane offsets, the lock is keeping away from when the lock seat, the locating piece is in the effect of elastic component card income down in the draw-in groove.

Optionally, an annular protrusion is disposed at a rotational connection position of the lock rod and the lock seat, and the annular protrusion has a notch for accommodating the connection block.

Optionally, one surface of the lock seat, which is attached to the door body, is a plane.

Optionally, a locking assembly for locking the lock handle on the lock seat is arranged at one end of the lock handle far away from the hinge position, the locking assembly includes a lock cylinder, a toggle pin connected to the lock cylinder, and a lock pin driven by the toggle pin to a locking position and an unlocking position, the locking assembly has a virtual locking structure, the virtual locking structure includes a control slot, and two ends of the control slot are respectively a locking action end and an unlocking action end.

The utility model provides a tool to lock for rack, it realizes locking lever, backing member and keeps off the synchronous rotation of piece through first structure and the second structure of splines to realize the switching of door through the lock handle, hold locking lever and backing member through the locating part inner chamber, and the locating part restricts the rotation of lock handle through the rotation of restriction backing member, realize best unblock effect, and the design of locking lever, backing member and locating part can improve the convenience and the practicality of tool to lock when the tool to lock is being installed or with trading the tool to lock; realize the installation to the tool to lock for the rack through setting element and locating part, the application scope of the tool to lock installation for the multiplicable rack, when the installation, only need use electric drill or other drill bit instrument to drill out the door body and be used for first fastener, the aperture that the second fastener passed, perhaps directly use the electric drill to fix first fastener with locating part and the door body and lock seat, the second fastener is fixed with setting element and the door body and lock seat, can accomplish the installation, need not to use this kind of high-risk instrument of cutting machine, danger is low and the installation effectiveness 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 schematic perspective view of a lock for a cabinet according to an embodiment of the present invention;

fig. 2 is an exploded view of a lock for a cabinet according to an embodiment of the present invention;

fig. 3 is an exploded view of another angle of a lock for a cabinet according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a limiting member of a lock for a cabinet according to an embodiment of the present invention;

fig. 5 is a front view of a limiting member of a lock for a cabinet according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view taken at A-A of FIG. 5;

fig. 7 is a schematic perspective view of a cushion member of a lock for a cabinet according to an embodiment of the present invention;

fig. 8 is a front view of a pad of a lock for a cabinet according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view taken at B-B of FIG. 8;

fig. 10 is a front view of a stopper of a lock for a cabinet according to an embodiment of the present invention;

fig. 11 is a front view of a positioning member of a lock for a cabinet according to an embodiment of the present invention;

fig. 12 is a schematic perspective view of a lock handle of a lock for a cabinet according to an embodiment of the present invention;

fig. 13 is a schematic perspective view of a lock seat of a lock for a cabinet according to an embodiment of the present invention;

fig. 14 is a schematic perspective view of a connection structure of a lock for a cabinet according to an embodiment of the present invention;

fig. 15 is an exploded view of a connection structure of a lock for a cabinet according to an embodiment of the present invention;

fig. 16 is a schematic perspective view of a locking structure of a lock for a cabinet according to an embodiment of the present invention;

fig. 17 is an exploded view of a locking structure of a lock for a cabinet according to an embodiment of the present invention;

fig. 18 is a cross-sectional view of a lock handle of a lock for a cabinet, which is close to a lock seat according to an embodiment of the present invention;

fig. 19 is a cross-sectional view of a lock handle of a lock for a cabinet, which is far from a lock seat according to an embodiment of the present invention;

fig. 20 is an initial state diagram of a virtual lock structure of a lock for a cabinet according to an embodiment of the present invention;

fig. 21 is an unlocking schematic view of a virtual lock structure of a lock for a cabinet according to an embodiment of the present invention;

fig. 22 is a schematic lock core resetting diagram of a virtual lock structure of a lock for a cabinet according to an embodiment of the present invention;

fig. 23 is a schematic locking diagram of a virtual lock structure of a lock for a cabinet according to an embodiment of the present invention;

fig. 24 is a schematic view of lock cylinders of the virtual lock structure of the lock for the cabinet provided by the embodiment of the present invention in different states;

FIG. 25 shows the shape of the mounting hole of a conventional lock for a cabinet door;

fig. 26 is a schematic structural view of a back surface of a door body of a lock for a cabinet when different old mounting holes are installed.

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", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "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 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 to 11, an embodiment of the present invention provides a lock for a cabinet, including a lock base 2, a lock handle 1 and an unlocking assembly 3, where the unlocking assembly 3 includes a lock rod 31 rotatably connected to the lock base 2 and a stopper 34 rotatable with the lock rod 31 and used for opening and closing a door, one end of the lock rod 31 is hinged to one end of the lock handle 1, the other end of the lock handle 1 is far away from or close to the lock base 2, the lock for a cabinet further includes an installation accessory, the installation accessory includes a cushion 32 and a stopper 33 having an inner cavity 331, the stopper 33 is connected to a threaded post (not identified in the drawings) provided with a threaded hole and arranged on the lock base 2 through a first fastener 333; one end of the cushion 32 is located in the inner cavity 331 and connected to the lock rod 31 through the first rotation stopping structure 35, or the cushion 32 and the lock rod 31 are integrally formed, and the other end of the cushion 32 extends out of the limiting member 33 and is connected to the stopper 34 through the second rotation stopping structure 36; the mounting attachment also includes locating elements 37 which are located on both sides of the door body separately from the lock holder 2.

With such a design, as shown in fig. 2, the rotation from the lock handle 1 is transmitted through the first rotation stopping structure 35 and the second rotation stopping structure 36, so that the opening and closing of the door are realized through the stopper 34; generally, the pad 32 and the lock bar 31 are provided separately, so that the pad 32 or the lock bar 31 with a suitable length can be selected according to the actual condition of the door body 7, and of course, the pad 32 and the lock bar 31 can also be integrally formed; the inner cavity 331 of the limiting member 33 can accommodate the cushion member 32 and the lock rod 31, and the limiting member 33 is connected to the lock base 2 through the first fastening member 333, when mounting, only the door body 7 needs to be drilled with a small hole for the first fastening member 333 to pass through by using an electric drill or other drill tools, or the first fastening member 333, the limiting member 33 and the lock base 2 are fixed on the door body 7 by directly using an electric drill, the lock base 2, the door body 7 and the limiting member 33 can be fixedly connected through the first fastening member 333, the lock base 2, the door body and the positioning member 37 are fixedly connected through the second fastening member 371, and the limiting member 33 and the fixing member can be respectively and fixedly connected with two ends of the lock base 2, so that the lock base 2 can be. Furthermore, as shown in fig. 25 and 26, if the lock is replaced, it is required to satisfy that the transverse width N (shown in fig. 25) of the old installation hole is not greater than the transverse widths of the positioning member 37 and the lock base 2, that is, the lock base 2 is sized to cover the old installation hole, and the longitudinal length M (shown in fig. 25) of the old installation hole is not greater than the longitudinal length of the lock base 2, and if the old installation hole is smaller, the installation can be completed without using the limiting member 33 and the positioning member 37 (at this time, the lock rod 31 and the cushion member 32 are integrally formed); the first fastener 333, the second fastener 371 and the third fastener 341 can be bolts and screws, only the door body needs to be drilled with small holes for the first fastener 333 and the second fastener 371 to pass through by using an electric drill or other drill tools, or the first fastener 333, the limiting part 33, the door body 7 and the lock seat 2 are fixed by directly using the electric drill, the second fastener 371, the positioning part 37, the door body 7 and the lock seat 2 are fixed, and the installation can be completed.

Specifically, the positioning member 37 is connected to the lock housing 2 by a second fastening member 371; the locking bar 31, the cushion member 32 and the stopper member 34 are connected by a third fastening member 341 for easy installation.

Specifically, as shown in fig. 2, fig. 3 and fig. 9, as an alternative embodiment of the present invention, the first rotation stopping structure 35 includes a first rotation stopping hole 352 disposed in the pad 32 and a first rotation stopping protrusion 351 disposed in the lock rod 31 and inserted into the first rotation stopping hole 352, the first rotation stopping protrusion 351 is a non-circular structure, and the pad 32 can rotate with the lock rod 31 under the control of the first rotation stopping structure 35.

In a specific application, as shown in fig. 2, the first rotation stopping protrusion 351 may be a protrusion with a square or rectangular or semicircular or triangular or other polygonal cross section, and the first rotation stopping hole 352 may be a square or rectangular or semicircular or triangular or other polygonal cross section corresponding to the first rotation stopping protrusion 351, and the first rotation stopping hole 352 may also be different from the first rotation stopping protrusion 351 in cross section, as long as the first rotation stopping protrusion 351 can be matched with the first rotation stopping hole 352 to drive the pad 32 to rotate when rotating, that is, the first rotation stopping protrusion 351 and the first rotation stopping hole 352 do not rotate relatively when being matched.

Specifically, as shown in fig. 7 to 10, as an alternative embodiment of the present invention, the second rotation stopping structure 36 includes a second rotation stopping hole 362 disposed on the stopper 34 and a second rotation stopping protrusion 361 disposed on the pad 32 and inserted into the second rotation stopping hole 362, the second rotation stopping protrusion 361 is a non-circular structure, and the stopper 34 can rotate with the pad 32 under the control of the second rotation stopping structure 36.

In a specific application, as shown in fig. 7 and 10, the second rotation stopping protrusion 361 may be a protrusion with a square or rectangular or semicircular or triangular or other polygonal cross section, and oppositely, the second rotation stopping hole 362 may be a square or rectangular or semicircular or triangular or other polygonal cross section corresponding to the second rotation stopping protrusion 361, and the second rotation stopping hole 362 may also be different from the second rotation stopping protrusion 361 in cross section, as long as the second rotation stopping protrusion 361 can cooperate with the second rotation stopping hole 362 to drive the stopper 34 to rotate when rotating, that is, the second rotation stopping protrusion 361 and the second rotation stopping hole 362 cannot rotate relatively when cooperating.

Specifically, as shown in fig. 10, as an optional embodiment of the present invention, the second rotation stopping hole 362 is a hole with two identical squares overlapped and dislocated in the same axial position and having an included angle of 45 ° so as to facilitate quick adjustment of the installation direction and adapt to different installation situations.

With such a design, when installing, an installer can select the matching angle of the second rotation-stopping protrusion 361 and the second rotation-stopping hole 362, so as to meet the requirements of different practical situations, and in a specific application, the design can be extended to overlap two rectangles or overlap a triangle, and the overlapping angle can be 15 degrees, or 30 degrees, or 45 degrees, etc.

Specifically, as shown in fig. 3 to fig. 9, as an optional embodiment of the present invention, a first limiting structure 332 is disposed between the pad 32 and the limiting member 33, the first limiting structure 332 includes a limiting block 3321 disposed outside the pad 32 and a limiting ring 3322 disposed at one end of the limiting ring 3322 close to the stopper 34, the limiting block 3321 abuts against the limiting ring 3322, and the stopper 34 is prevented from completely separating from the inner cavity 331 from one end of the limiting ring 3322.

Through the design, when the lock is installed, the pad 32 can be prevented from being completely separated from the inner cavity 331 of the limiting part 33, so that the installation convenience degree and the installation efficiency are improved, in addition, the reliability of the unlocking assembly 3 can be improved to a certain extent when the lock is used, meanwhile, because the limiting part 33 is installed on the back surface of the door body 7, the pad 32 or the lock rod 31 with different lengths can be selected according to the thicknesses of different door bodies 7, the limiting part 33 can be directly replaced according to the actual requirement, the installation accessories have suitable sizes for cabinets with different specifications, and matching can be selected according to the actual requirement, so the design of a lock body does not need to be changed, the practicability is higher, and the design and production cost of the lock is reduced; the limiting ring 3322 may be a ring-shaped protrusion along the limiting member 33, and the limiting member 3321 may be a ring-shaped protrusion outside the cushion member 32 or one or more than one protrusion.

Specifically, as shown in fig. 3 to fig. 9, as an optional embodiment of the present invention, a second limiting structure 321 (shown in fig. 7) is disposed between the pad 32 and the limiting member 33, the second limiting structure 321 includes a strip protrusion 3211 axially disposed outside the pad 32, and the limiting ring 3322 has a limiting notch 3212 for accommodating the strip protrusion 3211.

Through such a design, as shown in fig. 6 and 7, the bar-shaped protrusion 3211 can rotate in the position-limiting notch 3312, so as to limit the rotation of the pad 32, the lock rod 31 and the lock handle 1, the position-limiting notch 3212 has two opposite ends, when the bar-shaped protrusion 3211 abuts against one end of the position-limiting ring 3322, the stopper 34 just unlocks the door, and when the bar-shaped protrusion 3211 abuts against the other end of the position-limiting notch 3212, the stopper 34 just locks the door; or, when the stopper 34 unlocks the door, the bar-shaped protrusion 3211 abuts against one end of the position-limiting notch 3312, and when the stopper 34 locks the door, the bar-shaped protrusion 3211 is spaced apart from the other end of the position-limiting notch 3312.

Specifically, as shown in fig. 2 and fig. 12 to 15, as an alternative embodiment of the present invention, a connection structure 38 for connecting the lock rod 31 and the lock handle 1 is disposed between the lock rod 31 and the lock handle 1, the connection structure 38 includes a connection groove 382 disposed at one end of the lock rod 31 and a connection block 381 disposed at the lock handle 1, and the connection block 381 and the connection groove 382 are rotatably connected by a connection member 3814; alternatively, the connecting structure 38 includes a connecting block 381 provided at one end of the lock lever 31 and a connecting groove 382 provided at the lock handle 1.

Through such a design, as shown in fig. 15, the connection groove 382 is engaged with the connection block 381, and is rotationally connected through the connection member 3814, so that the lock handle 1 can rotate around the connection member 3814, that is, a section of the lock handle 1 far from the connection structure 38 can be far away from or close to the lock base 2, the door is unlocked by clockwise or counterclockwise rotation after the lock handle 1 is far away from the lock base 2, and the connection member 3814 may be a pin or a bolt-nut combination.

Specifically, as shown in fig. 12 to 15, as an optional embodiment of the present invention, the connection groove 382 has two end planes that are relatively arranged, the end planes are provided with the clamping groove 3821, the connection block 381 is provided with the through hole 3811, two positioning blocks 3813 that are connected through the elastic component 3812 are provided in the through hole 3811, when the lock handle 1 is close to the lock base 2, the positioning blocks 3813 are offset with the end planes (the position of the non-clamping groove 3821), when the lock handle 1 is far away from the lock base 2, the positioning blocks 3813 are clamped into the clamping groove 3821 under the effect of the elastic component 3812, a stepped surface is formed between the clamping groove 3821 and the end planes, and the stepped surface can be an inclined plane with a certain angle.

Through such a design, as shown in fig. 15, when the lock handle 1 is close to the lock base 2, the elastic member 3812 is in a compressed state, and at this time, the positioning block 3813 abuts against the end plane, when the lock handle 1 is gradually far away from the lock base 2, and the positioning block 3813 rotates to the position of the slot 3821, under the elastic force of the elastic member 3812, the positioning block 3813 is clamped into the slot 3821, and the lock handle 1 has a feeling of being "popped out", and at this time, an operator can feel the feedback feeling brought by the elastic member 3812, the whole process can improve the operation hand feeling, and even if the operator releases the lock handle 1, the lock handle 1 cannot be close to the lock base 2 because the positioning block 3813 is clamped into the slot 3821, a certain external force needs to be applied to press the positioning block 3813 to compress the elastic member 3812, so as to enable the lock handle 1 to be close to the lock base 2, and the stepped surface with the inclined surface can reduce the external force applied to press the lock handle 1, locating block 3813 may be spherical or ellipsoidal.

Specifically, as shown in fig. 13 and 14, as an alternative embodiment of the present invention, the rotary connection position of the lock rod 31 and the lock base 2 is provided with an annular protrusion 383, and the annular protrusion 383 has a notch 3831 for accommodating the connecting block 381.

Through such design, as shown in fig. 14, the notch 3831 that the annular protrusion 383 provided does not influence the lock handle 1 to be close to or keep away from the lock seat 2, and when the lock handle 1 is kept away from the lock seat 2 and is rotated for unlocking, if the lock handle 1 is directly pressed at this moment, the annular protrusion 383 exists, so that the connecting block 381 offsets with the annular protrusion 383, the lock handle 1 cannot be close to the lock seat 2, the lock handle 1 is prevented from being in direct contact with the outer edge of the lock seat 2, and the abrasion of the outer edge of the lock seat 2 is reduced.

Specifically, as shown in fig. 2 and 16 to 19, as an alternative embodiment of the present invention, a locking assembly 4 for locking the handle 1 on the lock seat 2 is disposed at an end of the handle 1 away from the hinge position, the locking assembly 4 includes a lock cylinder 41, a toggle pin 42 connected to the lock cylinder 41, and a lock pin 43 driven by the toggle pin 42 to a locking position and an unlocking position, the toggle pin 42 is disposed at a non-axial position where the lock cylinder 41 is close to an end of the lock pin 43, the locking assembly 4 has a virtual locking structure 44, the virtual locking structure 44 includes a control slot 443, the control slot 443 is not limited to a recess disposed on a surface of the lock pin 43 in a general sense, but may also be a space disposed on a surface of the lock pin 43 and surrounded by a plurality of blocking pieces, two ends of the control slot 443 are respectively a locking action end and an unlocking action end, and likewise, the locking action end and the unlocking action end may be inner walls of the control slot 443, or a stop provided on the surface of the lock pin 43.

Through the design, as shown in fig. 2, the locking assembly 4 can lock the lock handle 1 on the lock base 2 after the lock handle is close to the lock base 2, so that the safety of the lock for the cabinet is improved; as shown in fig. 16, the toggle pin 42 is connected to the lock cylinder 41 and can rotate with the lock cylinder 41, the toggle pin 42 drives the lock pin 43 to the locking position or the unlocking position by contacting with the locking action end or the unlocking action end arranged on the lock pin 43, so as to lock the lock handle 1 on the lock base 2 or unlock the locking relationship between the lock handle 1 and the lock base 2, in a specific application, as shown in fig. 2, the locking assembly 4 can further include a lock cylinder code piece 45 and a lock cylinder cover 46, the front side of the lock cylinder code piece 45 is connected to the lock cylinder 41, the rear side can be connected to the lock cylinder cover 46, and the lock cylinder cover 46 is rotatably connected to the lock handle 1, the lock cylinder cover 46 can protect the lock cylinder 41, so as to prevent sundries from entering the lock cylinder 41 and affecting normal use, and when in use, the lock cylinder cover 46 needs to be rotated away from the surface of the lock cylinder 41, i.e; the end of the lock handle 1 provided with the locking assembly 4 is provided with a protruding part 11, the protruding part 11 extends out of the lock seat 2, and the protruding part 11 can facilitate the lifting of the lock handle 1.

Specifically, as shown in fig. 3 and 13 to 24, as an alternative embodiment of the present invention, an end portion of the toggle pin 42 extends into the control slot 443, and if the toggle pin is of a flap structure, the toggle pin 42 extends between the flaps, and a free stroke space is provided between the locking action end and the unlocking action end, which allows the lock pin 43 to maintain the unlocked state or the locked state when the key cylinder 41 is reset; the lock seat 2 is provided with a first groove 21 for accommodating the lock handle 1 and a second groove 22 for accommodating the locking assembly 4, a step surface is formed between the first groove 21 and the second groove 22, a locking wall 444 is arranged at the position of the lock seat 2 corresponding to the lock pin 43, the locking wall 444 can be arranged on the step surface or other positions of the lock seat 2, and the lock pin 43 rotates to the rear part of the locking wall 444 or rotates away from the rear part of the locking wall 444 under the control of the toggle pin 42; meanwhile, a protective cover 23 may be disposed on the back surface of the lock holder 2, i.e., on the surface of the lock holder 2 close to the door body, corresponding to the locking wall 444.

In specific application, the toggle pin 42 contacts with an unlocking action end (as shown in fig. 20) and drives the lock pin 43 to an unlocking position (as shown in fig. 21), then the toggle pin 42 resets along with the rotation of the lock cylinder 41, at this time, the toggle pin 42 just contacts with the locking action end or the toggle pin 42 does not contact with the locking action end yet, so that the lock pin 43 still keeps an unlocking state (as shown in fig. 22), the lock cylinder 41 continues to rotate in a locking direction, the toggle pin 42 drives the lock pin 43 to the locking position (as shown in fig. 23), similarly, the toggle pin 42 contacts with the locking action end and drives the lock pin 43 to the locking position, then the toggle pin 42 resets along with the rotation of the lock cylinder 41, at this time, the toggle pin 42 just contacts with the unlocking action end or the toggle pin 42 does not contact with the unlocking action end yet, so that the lock pin 43 still keeps the locking state; the first recess 21 and the second recess 22 respectively accommodate the handle 1 and the locking assembly 4, so that the time for exposing the handle 1 and the locking assembly 4 can be reduced, the durability and the aesthetic appearance of the lock can be improved, and the lock can be unlocked or locked by driving the lock pin 43 to the rear of the locking wall 444 or rotating away from the rear of the locking wall 444.

Specifically, one surface of the lock seat 2, which is attached to the door body, can be a plane, so that the universality of the lockset is greatly improved.

The embodiment of the utility model provides a tool to lock for rack, it realizes locking lever 31, backing member 32 and keeps off the synchronous rotation of 34 through first structure 35 and the second structure 36 that splines to realize the switching of door through lock handle 1, hold locking lever 31 and backing member 32 through locating part 33 inner chamber 331, and locating part 33 restricts the rotation of lock handle 1 through the rotation of restriction backing member 32, realize best unblock effect, and the design of locking lever 31, backing member 32 and locating part 33 can improve the convenience and the practicality of tool to lock when the tool to lock is being installed or is following the tool to lock; realize the installation to the tool to lock for the rack through lock seat 2, setting element 37 and locating part 33, the application scope of the tool to lock installation for the multiplicable rack, when the installation, only need use electric drill or other drill bit instrument to drill out the door body and be used for first fastener, the aperture that the second fastener passed, perhaps directly use the electric drill to fix first fastener and locating part and door body and lock seat, the second fastener is fixed with setting element and door body and lock seat, can accomplish the installation, need not to use this kind of high-risk instrument of cutting machine, danger is low and the installation effectiveness 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. A lock for a cabinet comprises a lock seat, a lock handle and an unlocking assembly, wherein the unlocking assembly comprises a lock rod which is rotatably connected to the lock seat and a blocking piece which can rotate along with the lock rod and is used for opening and closing a door; one end of the cushion piece is positioned in the inner cavity and connected to the lock rod through a first rotation stopping structure, or the cushion piece and the lock rod are integrally formed, and the other end of the cushion piece extends out of the limiting piece and is connected to the stopper through a second rotation stopping structure; the mounting accessory further comprises positioning pieces which are respectively arranged on two sides of the door body together with the lock seat.

2. The lock of claim 1, wherein the first rotation stopping structure comprises a first rotation stopping hole disposed in the pad and a first rotation stopping protrusion disposed in the lock rod and inserted into the first rotation stopping hole, the first rotation stopping protrusion is a non-circular structure, and the pad can rotate with the lock rod under the control of the first rotation stopping structure.

3. The lock of claim 1, wherein the second rotation stopping structure comprises a second rotation stopping hole disposed in the stopper and a second rotation stopping protrusion disposed in the pad and inserted into the second rotation stopping hole, the second rotation stopping protrusion is of a non-circular structure, and the stopper is rotatable with the pad under the control of the second rotation stopping structure.

4. The lock for a cabinet of claim 1, wherein the positioning member is connected to the lock holder by a second fastening member; the lock rod, the cushion piece and the stopper are connected through a third fastener.

5. The lock according to claim 1, wherein a first limiting structure is disposed between the pad and the limiting member, the first limiting structure includes a limiting member disposed outside the pad and a limiting ring disposed at an end of the limiting member close to the stopper, and the limiting member abuts against the limiting ring to prevent the stopper from completely separating from the inner cavity from an end of the limiting ring.

6. The lock of claim 5, wherein a second limiting structure is disposed between the pad and the limiting ring, the second limiting structure comprises a strip-shaped protrusion disposed on an outer side of the pad, and the limiting ring has a limiting notch for receiving the strip-shaped protrusion.

7. The lock for cabinet of claim 1, wherein a connecting structure for connection is provided between the lock rod and the lock handle, the connecting structure includes a connecting groove provided at one end of the lock rod and a connecting block provided at the lock handle, the connecting block and the connecting groove are rotatably connected by a connecting piece;

or the connecting structure comprises a connecting block arranged at one end of the lock rod and a connecting groove arranged on the lock handle; the spread groove has two relative end planes that set up, end plane all is provided with the draw-in groove, the connecting block is provided with the through-hole, be provided with two locating pieces that connect through the elastic component in the through-hole, the lock is close to during the lock seat, the locating piece with end plane offsets, the lock is kept away from during the lock seat, the locating piece is in card income under the effect of elastic component in the draw-in groove.

8. The lock of claim 7, wherein the lock rod is rotatably connected to the lock holder by an annular protrusion, and the annular protrusion has a notch for receiving the connecting block.

9. The lock for cabinet as claimed in claim 1, wherein the surface of the lock seat facing the door is a plane.

10. The lock for cabinet according to any one of claims 1 to 9, wherein the lock handle is provided with a locking assembly at an end thereof remote from the hinge position for locking the lock handle to the lock base, the locking assembly includes a lock cylinder, a toggle pin connected to the lock cylinder, and a lock pin driven by the toggle pin to a locking position and an unlocking position, the locking assembly has a virtual locking structure, the virtual locking structure includes a control slot, and the two ends of the control slot are respectively a locking action end and an unlocking action end.

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