CN211524387U - Cylinder lock - Google Patents

Abstract

The utility model relates to a cylinder lock. The lock core of the cylinder lock is rotatably arranged in the lock body; the inner shaft sleeve is connected with the lock core, and the inner shaft sleeve is provided with driving grooves which are obliquely distributed along the axial direction; the outer shaft sleeve is arranged between the lock body and the inner shaft sleeve, a guide channel is formed by matching the outer shaft sleeve and the lock body, and the guide channel comprises an axial channel extending along the axis of the outer shaft sleeve and a circumferential channel which is communicated with one end of the axial channel, which is far away from the lock core, and extends along the circumferential direction; the first end of the rotating shaft is positioned in the inner shaft sleeve, and the second end of the rotating shaft is connected with the steel bolt; the first end of the pin shaft is positioned in the guide channel, and the second end of the pin shaft sequentially penetrates through the driving groove and the rotating shaft; when the lock core is rotated along the preset direction, the driving groove firstly drives the pin shaft to rotate in the circumferential channel, and then the driving pin shaft slides in the axial channel along the direction close to the door body until the door body is locked. Even if a gap is formed between the cabinet door and the cabinet body, when the lock is closed, the steel bolt can move along the direction close to the cabinet door along with the rotating shaft until being clamped on the side wall of the cabinet door.

Description

Cylinder lock

Technical Field

The utility model relates to a tool to lock technical field especially relates to a cylinder lock.

Background

The cylinder lock commonly used in the market at present generally adopts the commentaries on classics tongue card to establish the tang on the cabinet body and locks, but if the outward protrusion of cabinet door warp or the inward protrusion of the cabinet body warp and lead to producing the gap between the cabinet door and the cabinet body, the commentaries on classics tongue of cylinder lock can not change over into to the tang in, this makes above-mentioned cylinder lock can not lock the cabinet door.

SUMMERY OF THE UTILITY MODEL

Therefore, the cylinder lock is needed to solve the problem that when a gap is generated between the cabinet door and the cabinet body due to outward protruding deformation of the cabinet door or inward protruding deformation of the cabinet body, the cylinder lock cannot lock the cabinet door.

A cylinder lock, comprising: the lock body is arranged on the door body, and the lock core inner shaft sleeve, the outer shaft sleeve, the rotating shaft, the steel bolt and the pin shaft are arranged on the lock body;

the lock cylinder is rotatably arranged in the lock body;

the inner shaft sleeve is connected with the lock cylinder, and the inner shaft sleeve is provided with driving grooves which are obliquely distributed along the axial direction;

the outer shaft sleeve is arranged between the lock body and the inner shaft sleeve, a guide channel is formed between the outer shaft sleeve and the lock body in a matched mode, and the guide channel comprises an axial channel extending along the axis of the outer shaft sleeve and a circumferential channel which is communicated with one end, far away from the lock core, of the axial channel and extends along the circumferential direction;

the first end of the rotating shaft is positioned in the inner shaft sleeve, and the second end of the rotating shaft is connected with the steel bolt;

the first end of the pin shaft is positioned in the guide channel, and the second end of the pin shaft sequentially penetrates through the driving groove and the rotating shaft;

when the lock core is rotated along a preset direction, the driving groove drives the pin shaft to rotate in the circumferential channel, and then the pin shaft is driven to slide in the axial channel along the direction close to the door body until the door body is locked.

In one embodiment, the drive slot comprises: the first driving grooves and the second driving grooves are uniformly distributed along the circumferential direction and have the same structure;

the guide passage includes: the first guide channel and the second guide channel are uniformly distributed along the circumferential direction and have the same structure;

the first end of the pin shaft sequentially penetrates through the first guide channel, the first driving groove and the rotating shaft, and the second end of the pin shaft sequentially penetrates through the second guide channel, the second driving groove and the rotating shaft.

In one embodiment, the outer sleeve is provided with a first limit groove and a retraction groove in sequence along the circumferential direction;

a first arc-shaped boss and a second arc-shaped boss are sequentially arranged on the inner wall of one end, far away from the door body, of the lock body along the circumferential direction, and the extension length of the first arc-shaped boss is greater than that of the second arc-shaped boss;

the first arc-shaped boss is limited in the first limiting groove, a gap is formed between the second arc-shaped boss and the outer shaft sleeve, the gap forms the circumferential channel, and the axial channel is formed between the indentation groove and the side wall of the first arc-shaped boss.

In one embodiment, the drive slot is a helical slot.

In one embodiment, the inner shaft sleeve is further provided with a hooking groove, and the hooking groove is communicated with one end of the driving groove far away from the steel bolt;

when the cylinder lock is in a locking state, the first end of the pin shaft is clamped into the hooking groove.

In one embodiment, the section of the part of the hooking groove connected with the driving groove is distributed horizontally.

In one embodiment, an elastic part is arranged between the pin shaft and the inner wall of the inner shaft sleeve, which is far away from the steel bolt;

when the cylinder lock is in a locked state, the elastic member is compressed.

In one embodiment, a circumferential limit part is arranged between the first end of the inner shaft sleeve and the lock cylinder;

an axial limiting part is arranged between the second end of the inner shaft sleeve and the lock body.

In one embodiment, the outer wall of the inner shaft sleeve is provided with a first clamping groove;

the axial stopper includes: the first elastic retainer ring is clamped in the first clamping groove, a first step surface is arranged on the outer wall of the inner shaft sleeve, and a second step surface is arranged on the inner wall of the lock body, and the first elastic retainer ring and the first step surface are sequentially distributed along the direction far away from the steel bolt;

the first step surface is abutted with the second step surface, and the first elastic retainer ring is abutted with the outer wall of the end part of the lock body close to the steel bolt.

In one embodiment, the circumferential limiter includes: the second limiting groove is arranged at one end, facing the steel bolt, of the lock cylinder;

and the limiting bulge is arranged at the first end of the inner shaft sleeve and is accommodated in the second limiting groove.

According to the cylinder lock, the first end of the pin shaft is located in the guide channel formed by the matching between the outer shaft sleeve and the lock body, and the second end of the pin shaft sequentially penetrates through the driving groove and the rotating shaft of the inner shaft sleeve, so that when the key is used for rotating the lock cylinder along the preset direction, the driving groove can firstly drive the pin shaft to rotate in the circumferential channel, and then the driving pin shaft slides in the axial channel along the direction close to the door body until the door body is locked. It is thus clear that even the outward protrusion of cabinet door warp or the inward protrusion of the cabinet body warp and lead to producing the gap between the cabinet door and the cabinet body, when closing the cylinder lock, the steel peg can move along with the direction that is close to the cabinet door along the pivot, until the chucking on the lateral wall of cabinet door to the realization is to the locking of cabinet door.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of 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 to obtain other drawings without creative efforts.

Fig. 1 is an exploded schematic view of a cylinder lock according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating an assembly between an outer sleeve and a lock body according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a cylinder lock without a lock body according to an embodiment of the present invention in a locked state;

fig. 4 is a cross-sectional view of a cylinder lock according to an embodiment of the present invention in a locked state;

fig. 5 is a schematic structural view of a cylinder lock without a lock body according to an embodiment of the present invention, when a rotating shaft is in an extended state;

fig. 6 is a cross-sectional view of the cylinder lock according to an embodiment of the present invention, with the rotating shaft in an extended state;

fig. 7 is a schematic structural view of a cylinder lock without a lock body according to an embodiment of the present invention in an open state;

fig. 8 is a cross-sectional view of the cylinder lock according to an embodiment of the present invention in an open state;

fig. 9 is a schematic cross-sectional view of a lock body according to an embodiment of the present invention;

fig. 10 is a schematic structural view of an inner sleeve according to an embodiment of the present invention.

Wherein the various reference numbers in the drawings are described below:

100-lock body, 110-first arc boss, 120-second arc boss, 130-screw part, 140-installation part, 150-first nut, 160-resistance increasing piece, 170-first washer, 200-lock core, 200 a-second limit groove, 210-lock liner, 220-lock shell, 300-inner shaft sleeve, 300 a-driving groove, 300 b-hooking groove, 300 c-first clamping groove, 300 d-first step surface, 300 e-first accommodating groove, 310-elastic retainer ring, 320-limit projection, 400-outer shaft sleeve, 400 a-first limit groove, 400 b-retraction groove, 500-rotating shaft, 510-second nut, 520-third nut, 530-second washer, 540-third washer, 600-steel bolt, 610-first horizontal plate, 620-second horizontal plate, 630-inclined plate, 700-pin, 800 a-axial channel, 800 b-circumferential channel, 900-elastic element.

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. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In the description of the present invention, it is to be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

As shown in fig. 1, the utility model provides a cylinder lock, this cylinder lock includes: the lock comprises a lock body 100 arranged on a door body, a lock cylinder 200, an inner shaft sleeve 300, an outer shaft sleeve 400, a rotating shaft 500, a steel bolt 600 and a pin shaft 700; the lock cylinder 200 is rotatably disposed in the lock body 100; the inner shaft sleeve 300 is connected with the lock core 200, and the inner shaft sleeve 300 is provided with driving grooves 300a which are obliquely distributed along the axial direction; the outer shaft sleeve 400 is arranged between the lock body 100 and the inner shaft sleeve 300, a guide channel is formed between the outer shaft sleeve 400 and the lock body 100 in a matching manner, and the guide channel comprises an axial channel 800a extending along the axis of the outer shaft sleeve 400 and a circumferential channel 800b (see fig. 2) which is communicated with one end of the axial channel 800a far away from the lock cylinder 200 and extends along the circumferential direction; a first end of the rotating shaft 500 is positioned in the inner shaft sleeve 300, and a second end of the rotating shaft 500 is connected with the steel bolt 600; the first end of the pin shaft 700 is positioned in the guide channel, and the second end of the pin shaft 700 sequentially penetrates through the driving groove 300a and the rotating shaft 500; when the lock cylinder 200 is rotated along the preset direction, the driving groove 300a first drives the pin shaft 700 to rotate in the circumferential channel 800b, and then the driving pin shaft 700 slides in the axial channel 800a along the direction close to the door body until the door body is locked.

The following description is made of the locking and unlocking process of a cylinder lock installed in a cabinet:

as shown in fig. 2 and 3, when the cylinder lock on the cabinet door needs to be opened, a key is first inserted into the key hole of the lock cylinder 200 and rotates in a direction opposite to the preset direction (for example, clockwise), the key drives the lock cylinder 200 to rotate, and further drives the inner shaft sleeve 300 to rotate, the driving groove 300a of the inner shaft sleeve 300 drives the pin 700 to axially slide in the axial channel 800a formed between the inner shaft sleeve 300 and the lock body 100 in the direction close to the door body, so as to drive the steel bolt 600 connected with the rotating shaft 500 to move in the direction away from the cabinet door, and the pin 700 also slides from one end of the driving groove 300a to the other end. As shown in fig. 5 to 6, after the pin 700 slides out from the axial channel 800a (i.e., the pin 700 slides to the other end of the driving groove 300a, and the rotating shaft 700 is in an extended state), the driving groove 300a drives the pin 700 to rotate in the circumferential channel 800b formed between the inner sleeve 300 and the lock body 100, so as to drive the steel bolt 600 to rotate, as shown in fig. 7 to 8, after the steel bolt 600 rotates by a preset angle (e.g., rotates from a horizontal direction to a vertical direction, i.e., 90 °), the cabinet door is unlocked, and at this time, the key is pulled out.

As shown in fig. 7 and 8, when the door of the lock cabinet is required, a key is first inserted into the keyhole of the lock cylinder 200 and rotates along a predetermined direction (e.g., counterclockwise), the key drives the lock cylinder 200 to rotate, and then drives the inner sleeve 300 to rotate, the driving groove 300a of the inner sleeve 300 drives the pin 700 to rotate in the circumferential channel 800b formed between the inner sleeve 300 and the lock body 100, and then the steel bolt 600 connected to the rotating shaft 500 is driven to rotate. As shown in fig. 5 and 6, after the bolt 600 rotates a predetermined angle (for example, from the vertical direction to the horizontal direction, i.e., 90 °), the driving groove 300a drives the pin 700 to axially slide in the axial channel 800a formed between the inner sleeve 300 and the lock body 100 along the direction close to the cabinet door until the bolt 600 is tightly clamped on the cabinet body (see fig. 3 and 4), so as to lock the cabinet door, and at this time, the key is pulled out.

In the cylinder lock as described above, the first end of the pin 700 is located in the guide channel formed by the cooperation between the outer sleeve 400 and the lock body 100, and the second end of the pin 700 sequentially passes through the driving groove 200b and the rotating shaft 500 of the inner sleeve 300, so that when the key is used to rotate the lock cylinder 200 along the preset direction, the driving groove 300a can rotate the pin 700 in the circumferential channel 800b, and then the driving pin 700 slides in the axial channel 800a along the direction close to the door body until the door body is locked. It can be seen that even if the outward protrusion of the cabinet door deforms or the inward protrusion of the cabinet body deforms, so that a gap is generated between the cabinet door and the cabinet body, when the cylindrical lock is closed, the steel bolt 600 can move along the direction close to the cabinet door along with the rotating shaft 500 until being clamped on the side wall of the cabinet door, so that the cabinet door can be locked.

In some embodiments of the present invention, the driving groove 300a includes: the first driving grooves and the second driving grooves are uniformly distributed along the circumferential direction and have the same structure; the guide passage includes: the first guide channel and the second guide channel are uniformly distributed along the circumferential direction and have the same structure; the first end of the pin shaft 700 sequentially penetrates through the first guide channel, the first driving groove and the rotating shaft 500, and the second end of the pin shaft 700 sequentially penetrates through the second guide channel, the second driving groove and the rotating shaft 500. Therefore, the driving grooves 300a of the inner shaft sleeve 300 can smoothly drive the pin shafts 700 to move in the guide channels while the lock core 200 rotates, so that a user can rotate the lock core 200 in a labor-saving manner, the number of the driving grooves 300a and the guide channels and the number of the pin shafts 700 are the minimum, and the processing difficulty and the structural complexity of the cylinder lock can be reduced.

It can be understood that the number of the axial channels 800a and the circumferential channels 800b is two, and the axial channels and the circumferential channels are uniformly distributed along the circumferential direction.

In an embodiment of the present invention, as shown in fig. 1, 3, 5 and 7, the outer sleeve 400 is sequentially provided with a first limiting groove 400a and a retracting groove 400b along a circumferential direction; a first arc-shaped boss 110 and a second arc-shaped boss 120 (see fig. 9) are sequentially arranged on the inner wall of one end of the lock body 100, which is far away from the door body, along the circumferential direction, and the extension length of the first arc-shaped boss 110 is greater than that of the second arc-shaped boss 120; the first arc-shaped boss 110 is limited in the first limiting groove 400a, and a gap is formed between the second arc-shaped boss 120 and the outer shaft sleeve 400, wherein the gap forms a circumferential channel 800b, and an axial channel 800a is formed between the reduction groove 400b and the side wall of the first arc-shaped boss 110 (see fig. 2). When the pin shaft 700 rotates in the circumferential channel 800b, when the pin shaft 700 rotates to abut against the side wall of the first arc-shaped boss 110, the first arc-shaped boss 110 blocks the pin shaft 700 from rotating continuously, so that the pin shaft 700 slides axially along the axial channel 800a under the driving of the driving groove 300 a.

It can be understood that, when the driving grooves 300a and the guide channels are uniformly arranged in two in the circumferential direction, the number of the first limiting grooves 400a and the reduction grooves 400b is 2, and the two first limiting grooves 400a and the two reduction grooves 400b are uniformly distributed in the circumferential direction; as shown in fig. 9, the number of the first and second arc shaped protrusions 110 and 120 is 2, and the first and second arc shaped protrusions 110 and 120 are alternately arranged. Then, each end of the pin 700 slides out of the axial channel 800a formed by the corresponding first arc-shaped boss 110 and the reduction groove 400b and enters the corresponding axial channel 800b to rotate until abutting against the other first arc-shaped boss 110. It can be seen that the two first arc-shaped bosses 110 not only can be used to support the outer sleeve 400 in the lock body 100, but also can define the rotation angle of the pin shaft 700.

Optionally, the first limiting groove 400a and the indented groove 400b are both rectangular through grooves, and the notches of the first limiting groove 400a and the indented groove 400b are flush, and the groove width and the groove depth of the first limiting groove 400a are both greater than those of the indented groove 400 b.

In some embodiments of the present invention, as shown in fig. 1, the driving groove 300a is a spiral groove.

In some embodiments of the present invention, as shown in fig. 1, 7 and 10, the inner sleeve 300 is further provided with a hooking groove 300b, and the hooking groove 300b is communicated with one end of the driving groove 300a far away from the steel bolt 600; when the cylinder lock is in a locked state, the first end of the pin 700 is caught in the catching groove 300 b. So, the tight groove 300b of hook can be with the first end chucking of round pin axle 700, prevents that the first end of round pin axle 700 from taking place to remove and leading to having the gap between the steel peg 600 and the cabinet body in drive groove 300a under the circumstances that the cupboard took place to vibrate, and then can avoid the cabinet door to produce and rock.

Further, as shown in fig. 1, in some embodiments of the present invention, a section of the hooking groove 300b, which is connected to the driving groove 300a, is horizontally distributed. So, both can make the junction between clenching groove 300b and the drive groove 300a to the lock core 200 protrusion, can guarantee this junction unsmooth transition, and then can prevent that the first end of round pin axle 700 from getting into the drive groove 300a under the circumstances that the cupboard takes place the vibration, and also can make the first end of round pin axle 700 slide into the drive groove 300a by clenching groove 300b smoothly when rotating lock core 200, avoid the cylinder lock to appear the jamming phenomenon in the opening process.

As shown in fig. 1, 4, 6 and 8, in some embodiments of the present invention, an elastic member 900 is disposed between the pin shaft 700 and the inner wall of the inner sleeve 300 away from the steel bolt 600; when the cylinder lock is in the locked state, the elastic member 900 is compressed. Thus, when the cylinder lock is opened, the elastic member 900 resets and provides an elastic force to the pin shaft 700 sliding along the axial channel 800a, so that the pin shaft 700 smoothly slides under the driving of the driving groove 300a, and the situation that the driving groove 300a is not easy to drive the pin shaft 700 to slide due to too large friction force between the pin shaft 700 and the side wall of the driving groove 300a can be avoided.

Alternatively, as shown in fig. 1, the elastic member 900 is a profile spring, and the diameter of the middle portion of the profile spring is larger than the diameters of the two end portions.

In some embodiments of the present invention, a circumferential position-limiting member is disposed between the first end of the inner sleeve 300 and the lock cylinder 200; an axial stop is provided between the second end of the inner sleeve 300 and the lock body 100. The circumferential limiting part is used for driving the inner shaft sleeve 300 to rotate while the lock cylinder 200 rotates, and the axial limiting part is used for preventing the inner shaft sleeve 300 from falling off from the lock body 100 while the inner shaft sleeve 300 rotates.

Further, in some embodiments of the present invention, as shown in fig. 4, the outer wall of the inner sleeve 300 has a first engaging groove 300 c; the axial locating part includes: the first elastic retainer ring 310 is clamped in the first clamping groove 300c, the first step surface 300d is arranged on the outer wall of the inner shaft sleeve 300, and the second step surface is arranged on the inner wall of the lock body 100, and the first elastic retainer ring 310 and the first step surface 300d are sequentially distributed along the direction far away from the steel bolt 600; the first step surface 300d abuts against the second step surface, and the first circlip 310 abuts against the outer wall of the end portion of the lock body 100 close to the steel bolt 600. When assembling the cylinder lock, the inner sleeve 300 may be first installed into the lock body 100 until the first step surface 300d of the inner sleeve 300 is seated on the second step surface of the lock body 100; then, the first circlip 310 is clamped into the first clamping groove 300c of the inner shaft sleeve 300, and the first circlip 310 abuts against the outer wall of the end portion of the lock body 100 close to the steel bolt 600, so that the inner shaft sleeve 300 is axially fixed.

Alternatively, the first circlip 310 is an elastic ring having gaps at the head and the tail, and both the head and the tail of the first circlip 310 have opening holes. When the first elastic collar 310 is installed into the first engaging groove 300c of the inner sleeve 300, two embedded mouths of an expanding tool (such as a pair of pliers) are inserted into corresponding expanding holes of the first elastic collar 310, and the first elastic collar 310 is expanded and sleeved outside the inner sleeve 300. After the first elastic collar 310 enters the first engaging groove 300c, the spreading tool is removed from the first elastic collar 310, and the first elastic collar 310 is reset to be clamped in the first engaging groove 300 c.

Further, in some embodiments of the present invention, as shown in fig. 1, the circumferential position limiting element includes: a second limit groove 200a provided at one end of the lock cylinder 200 facing the steel bolt 600; and a stopper protrusion 320 (see fig. 10) provided on the first end of the inner hub 300, the stopper protrusion 320 being received into the second stopper groove 200 a.

Optionally, the limiting protrusion 320 is a block-shaped structure and extends along the radial direction of the inner shaft sleeve 300; the second limit groove 200a has a bar-shaped through groove structure and extends in the radial direction of the lock cylinder 200.

In some embodiments of the present invention, the lock core 200 is a high-level lock core, which can ensure the cylinder lock to have the anti-theft function.

Specifically, as shown in fig. 1, in some embodiments of the present invention, the lock cylinder 200 includes: a cylinder 210 and a lock case 220 connected to the lock body 100; the first end of the lock core 210 is rotatably arranged in the lock shell 220, and the first end of the lock core 210 is provided with a key hole; the second end of the lock core 210 extends out of the lock housing 220 and is provided with a second limiting groove 200 a.

Optionally, as shown in fig. 10, one end of the inner sleeve 300, which is far away from the steel bolt 600, is provided with a first receiving groove 300e, the limiting protrusion 320 is disposed at the bottom of the first receiving groove 300e, and the lock core 210 extends into the first receiving groove 300 e.

Alternatively, the lock housing 220 may be secured within the lock body 100 using screws. It can be understood that the side walls of the lock housing 220 and the lock body 100 are provided with screw mounting holes.

Optionally, in some embodiments of the present invention, the inner sleeve 300 has a relief groove on the wall far away from the steel bolt 600; a second clamping groove is formed in the second end of the lock core 210; the cylinder lock further includes: and the second elastic check ring is positioned in the abdicating groove and the second clamping groove and is attached to the wall, close to the steel bolt 600, in the lock shell 220. Therefore, the second elastic retainer ring can axially limit the lock cylinder 210 to ensure that the lock cylinder 210 cannot fall off from the lock case 220 while rotating.

As shown in fig. 1, in some embodiments of the present invention, the lock body 100 includes: the mounting part 140 and the screw part 130 are connected, and the diameter of the mounting part 140 is larger than the outer diameter of the screw part 130; the mounting part 140 is attached to a side wall of the door body; the free end of the screw portion 130 is adapted to pass through the door body and be fixed by a first nut 150. It can be understood that the door body has a lock mounting hole, and the mounting portion 140 is attached to the peripheral side wall of the lock mounting hole in the door body. So, the dismouting of the cylinder lock of being convenient for.

Alternatively, as shown in fig. 1 and 4, a resistance increasing member 160 is disposed between the mounting portion 140 and the door body, so that the mounting portion 140 can be firmly attached to the side wall of the door body. The resistance increasing member 160 may be a rubber ring, and a second receiving groove is formed in the wall of the mounting portion 140 close to the steel bolt 600, and the resistance increasing member 160 is disposed in the second receiving groove.

Alternatively, the mounting portion 140 is provided in a circular block-like configuration and is disposed coaxially with the screw portion 130.

Further, as shown in fig. 1, in some embodiments of the present invention, a first washer 170 is disposed between the first nut 150 and the door body. Therefore, the connection strength between the first nut 150 and the lock body 100 can be increased, the first nut 150 can be prevented from loosening, and the cylinder lock can be firmly installed on the door body.

Specifically, as shown in fig. 1, the first nut 150 is a splined nut and the first washer 170 is an internal toothed washer. So, can increase the inseparable degree of laminating and area of contact between first nut 150 and the first packing ring 170, can further increase the joint strength that first nut 150 and lock body 100 connect, can effectively prevent that first nut 150 from taking place to become flexible, and then can effectively make cylinder lock install on the door body firmly.

As shown in fig. 1, in some embodiments of the present invention, the rotating shaft 500 is provided with a second nut 510 and a third nut 520 at an interval in the axial direction; the steel bolt 600 is fixed on the rotating shaft 500 by the matching clamping of the second nut 510 and the third nut 520. So, be convenient for dismouting steel peg 600. It will be appreciated that the second end of the shaft 500 has threads on its outer wall that match the threads on the inner walls of the second nut 510 and the third nut 520.

Further, as shown in fig. 1, in some embodiments of the present invention, a second washer 530 is disposed between the second nut 510 and the steel bolt 600, and a third washer 540 is disposed between the third nut 520 and the steel bolt 600. Thus, the connection strength between the second nut 510 and the third nut 520 and the rotating shaft 500 can be increased, the second nut 510 and the third nut 520 can be prevented from loosening, and the steel plug 600 can be firmly mounted on the rotating shaft 500.

Specifically, as shown in fig. 1, the second nut 510 and the third nut 520 are spline nuts, respectively, and the second washer 530 and the third washer 540 are internal-tooth washers, respectively. Therefore, the connection strength between the second nut 510 and the third nut 520 and the rotating shaft 500 can be further increased, the second nut 510 and the third nut 520 can be effectively prevented from loosening, and the steel bolt 600 can be effectively and firmly mounted on the rotating shaft 500.

Optionally, as shown in fig. 1, the steel plug 600 includes: the lock body 100 comprises a first horizontal plate 610, a second horizontal plate 620 and an inclined plate 630 connected between the first horizontal plate 610 and the second horizontal plate 620, wherein the first horizontal plate 610 and the second horizontal plate 620 are distributed along a direction far away from the lock body 100, and the first horizontal plate 610 is sleeved on the rotating shaft 500.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A cylinder lock, characterized in that it comprises: the lock comprises a lock body (100) arranged on a door body, a lock cylinder (200), an inner shaft sleeve (300), an outer shaft sleeve (400), a rotating shaft (500), a steel bolt (600) and a pin shaft (700);

the lock cylinder (200) is rotatably arranged in the lock body (100);

the inner shaft sleeve (300) is connected with the lock cylinder (200), and driving grooves (300a) which are obliquely distributed along the axial direction are formed in the inner shaft sleeve (300);

the outer shaft sleeve (400) is arranged between the lock body (100) and the inner shaft sleeve (300), a guide channel is formed between the outer shaft sleeve (400) and the lock body (100) in a matched mode, and the guide channel comprises an axial channel (800a) extending along the axis of the outer shaft sleeve (400) and a circumferential channel (800b) which is communicated with one end, far away from the lock cylinder (200), of the axial channel (800a) and extends along the circumferential direction;

the first end of the rotating shaft (500) is positioned in the inner shaft sleeve (300), and the second end of the rotating shaft (500) is connected with the steel bolt (600);

the first end of the pin shaft (700) is positioned in the guide channel, and the second end of the pin shaft (700) sequentially penetrates through the driving groove (300a) and the rotating shaft (500);

when the lock cylinder (200) is rotated along a preset direction, the driving groove (300a) drives the pin shaft (700) to rotate in the circumferential channel (800b), and then the pin shaft (700) is driven to slide in the axial channel (800a) along the direction close to the door body until the door body is locked.

2. A cylinder lock according to claim 1, characterized in that the drive slot (300a) comprises: the first driving grooves and the second driving grooves are uniformly distributed along the circumferential direction and have the same structure;

the guide passage includes: the first guide channel and the second guide channel are uniformly distributed along the circumferential direction and have the same structure;

the first end of the pin shaft (700) sequentially penetrates through the first guide channel, the first driving groove and the rotating shaft (500), and the second end of the pin shaft (700) sequentially penetrates through the second guide channel, the second driving groove and the rotating shaft (500).

3. A cylinder lock according to claim 1, characterized in that the outer sleeve (400) is provided with a first limit groove (400a) and a reduction groove (400b) in this order in the circumferential direction;

a first arc-shaped boss (110) and a second arc-shaped boss (120) are sequentially arranged on the inner wall of one end, far away from the door body, of the lock body (100) along the circumferential direction, and the extension length of the first arc-shaped boss (110) is greater than that of the second arc-shaped boss (120);

the first arc-shaped boss (110) is limited in the first limiting groove (400a), a gap is formed between the second arc-shaped boss (120) and the outer shaft sleeve (400), the gap forms the circumferential channel (800b), and the axial channel (800a) is formed between the indentation groove (400b) and the side wall of the first arc-shaped boss (110).

4. A cylinder lock according to claim 1, characterized in that the drive groove (300a) is a helical groove.

5. A cylinder lock according to claim 1, characterized in that the inner sleeve (300) is further provided with a hooking groove (300b), and the hooking groove (300b) is communicated with one end of the driving groove (300a) far away from the steel bolt (600);

when the cylinder lock is in a locking state, the first end of the pin shaft (700) is clamped into the hooking groove (300 b).

6. A cylinder lock according to claim 5, characterized in that the section of the hooking groove (300b) at the point where it connects to the driving groove (300a) is horizontal.

7. A cylinder lock according to claim 1, characterized in that an elastic member (900) is provided between the pin (700) and the inner wall of the inner sleeve (300) remote from the steel bolt (600);

when the cylinder lock is in a locked state, the elastic member (900) is compressed.

8. A cylinder lock according to claim 1, characterized in that a circumferential stop is provided between the first end of the inner sleeve (300) and the lock cylinder (200);

an axial limiting piece is arranged between the second end of the inner shaft sleeve (300) and the lock body (100).

9. A cylinder lock according to claim 8, characterized in that the inner sleeve (300) has a first detent groove (300c) in its outer wall;

the axial stopper includes: the lock body comprises a first elastic retainer ring (310) clamped in the first clamping groove (300c), a first step surface (300d) arranged on the outer wall of the inner shaft sleeve (300) and a second step surface arranged on the inner wall of the lock body (100), wherein the first elastic retainer ring (310) and the first step surface (300d) are sequentially distributed along the direction far away from the steel bolt (600);

the first step surface (300d) is abutted against the second step surface, and the first elastic retainer ring (310) is abutted against the outer wall of the end part of the lock body (100) close to the steel bolt (600).

10. A cylinder lock according to claim 8, wherein the circumferential limit stop comprises: a second limit groove (200a) arranged at one end of the lock cylinder (200) facing the steel bolt (600); and a stopper protrusion (320) provided on a first end of the inner hub (300), the stopper protrusion (320) being received into the second stopper groove (200 a).

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