CN107700940B

CN107700940B - Door lock capable of reversely locking

Info

Publication number: CN107700940B
Application number: CN201710905681.XA
Authority: CN
Inventors: 请求不公布姓名
Original assignee: CMECH Guangzhou Industrial Ltd
Current assignee: CMECH Guangzhou Industrial Ltd
Priority date: 2017-09-29
Filing date: 2017-09-29
Publication date: 2023-03-28
Anticipated expiration: 2037-09-29
Also published as: CN107700940A

Abstract

The invention provides a door lock capable of reversely locking, which comprises a shell, a first toggle mechanism, a reverse block, a sliding block, a spring bolt, a reset mechanism for resetting the spring bolt and a reverse locking push rod, wherein the first toggle mechanism, the reverse block and the sliding block are all arranged in the shell, the first toggle mechanism and the reverse block are all hinged with the shell, the spring bolt is connected with the sliding block, the first toggle mechanism rotates to drive the reverse block to rotate, the reverse block rotates to drive the sliding block to move, the reverse locking push rod is arranged opposite to the first toggle mechanism, the first toggle mechanism is provided with a limiting part which is matched with the reverse locking push rod to limit the rotation of the first toggle mechanism, and the door lock also comprises a locking mechanism for limiting the reverse locking push rod to be separated from the limiting part. The door lock capable of locking reversely provided by the invention can lock reversely after the door is closed.

Description

Door lock capable of reversely locking

Technical Field

The invention relates to a door lock capable of locking reversely.

Background

Among the prior art, the kind of tool to lock is many, and the lock is more common application scope wider one, and the structure of lock is also more various, has cam-type, and the driving lever formula in addition, under the natural state, the spring bolt pops out, can insert the hole of door frame, when exerting force to the handle, can drive the spring bolt retraction, can open the door. Present lock mostly sets up two handles, installs respectively in the door and outdoors, when closing the door after, in the door with outdoor homoenergetic realize opening the door, like this, the people in the door can't prevent the people outside the door to open the door, the sense of security is low, consequently, how to realize the counter-lock, still is a technical problem who awaits a great deal of solution.

Disclosure of Invention

In view of the above disadvantages, the technical problem to be solved by the present invention is to provide a door lock capable of locking reversely, which can lock reversely after the door is closed.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a but lock of reversal, includes casing, first toggle mechanism, reversal piece, slider, spring bolt, general the canceling release mechanical system and the reversal push rod that the spring bolt resets, first toggle mechanism, reversal piece, slider all set up in the casing, first toggle mechanism, reversal piece all with the casing is articulated, the spring bolt with the slider is connected, first toggle mechanism rotates and drives the reversal piece and rotate, and the reversal piece rotates and drives the slider and remove, the reversal push rod with first toggle mechanism sets up relatively, be provided with on the first toggle mechanism with the reversal push rod cooperatees in order to restrict first toggle mechanism pivoted spacing portion, still including the restriction the reversal push rod with spacing portion breaks away from complex locking mechanical system.

The limiting part is a clamping groove which can be matched with the back locking push rod.

The locking mechanism comprises a limiting block arranged on the counter-locking push rod and a mouth part arranged on the sliding block and used for the counter-locking push rod to pass through, the limiting block faces to the direction of the reset mechanism, and the limiting block passes through the mouth part and abuts against the sliding block when in counter-locking.

The end part of the back locking push rod is provided with a guide inclined plane for guiding the back locking push rod to pass through the opening part.

The sliding block is further provided with a convex block, the first toggle mechanism is further internally provided with a third toggle mechanism, the third toggle mechanism comprises a lock cylinder rod and a lock cylinder, the lock cylinder rod drives the convex block to move towards the direction far away from the lock tongue when rotating, and the back lock push rod is provided with a return spring.

Still include the first in command, the first in command cover is established on first toggle mechanism, first holding tank has been seted up on the outer wall of lock core, sets up the through-hole on first toggle mechanism, sets up the second holding tank on the first in command inner wall, and first holding tank, through-hole and second holding tank communicate with each other and form the accommodation space that is used for holding the locking piece, are provided with the spout that supplies the unblock component to stretch into on the first in command inner wall, and the spout extends to second holding tank department and communicates with the second holding tank.

The first toggle mechanism comprises a first toggle piece and a first universal rotating mechanism, the first universal rotating mechanism comprises a first sleeve and a first cross pin, the first cross pin comprises a first pin shaft and a second pin shaft which are arranged in a cross manner, the first pin shaft is arranged on the first sleeve, the second pin shaft is fixed on the shell, and a first movable hole for the first sleeve to move relative to the second pin shaft is formed in the side wall of the first sleeve; the first shifting piece comprises a first top ring and a first shifting rod for shifting the reversing block to rotate, the first shifting rod is hinged with the shell and comprises a first shifting fork, one end of the first top ring is abutted against the first sleeve, and the other end of the first top ring is matched with the first shifting fork.

The first top ring is provided with a first tight pushing part in a protruding mode, the first top ring is further sleeved with a first compression spring, and two ends of the first compression spring are respectively abutted to the first shifting fork and the first tight pushing part.

The tail end of the shell is further provided with a first angle limiting ring, the outer wall of a part of shell of the first sleeve is spherical, the part of shell is located in the first angle limiting ring, the first cross pin is located in the part of shell, the inner wall of the first angle limiting ring matched with the part of shell is also spherical, the inner wall of the first angle limiting ring is further provided with a first inclined plane, and the first inclined plane is located in the rotating direction of the first sleeve.

The sliding block is hinged to the shell, the second shifting mechanism rotates to drive the reversing block to rotate, and the reversing block rotates to drive the sliding block to move.

The second toggle mechanism comprises a second toggle piece and a second universal rotating mechanism, the second universal rotating mechanism comprises a second sleeve and a second cross pin, the second cross pin comprises a third pin shaft and a fourth pin shaft which are arranged in a cross shape, the third pin shaft is arranged on the second sleeve, the fourth pin shaft is fixed on the shell, a second movable hole for the second sleeve to move relative to the fourth pin shaft is formed in the side wall of the second sleeve, the second toggle piece comprises a second top ring and a toggle block rotating second toggle rod, the second toggle rod is hinged to the shell, the second toggle rod comprises a second shifting fork, one end of the second top ring abuts against the second sleeve, and the other end of the second toggle rod is matched with the second shifting fork.

The second top ring is provided with a second tight-pushing part in a protruding mode, a second compression spring is further sleeved on the second top ring, and two ends of the second compression spring are respectively abutted to the second shifting fork and the second tight-pushing part.

The center of second apical ring be provided with the through-hole of second sleeve intercommunication, the back-locking push rod sets up in the through-hole of second sleeve and second stirring piece, the back-locking push rod is including the button, elastic component and the back locking pole that connect gradually.

The tail end of the shell is further provided with a second angle limiting ring, the outer wall of a part of shell of the second sleeve is spherical, the part of shell is located in the second angle limiting ring, the second cross pin is located in the part of shell, the inner wall of the second angle limiting ring matched with the part of shell is also spherical, the inner wall of the second angle limiting ring is further provided with a second inclined surface, and the second inclined surface stirring piece is located in the rotating direction of the second sleeve.

Still include the link, be provided with the couple on the slider, be provided with the confession on the link the mounting hole of couple hook, be provided with the mounting groove on the spring bolt, the mounting groove with the link cooperatees.

The lock bolt is characterized by further comprising a lock bolt shell and a fixed frame, wherein the fixed frame comprises a bottom wall and a side wall, the side wall is buckled and connected with the shell, and a notch is formed in the bottom wall; the lock tongue shell is provided with limiting blocks at intervals, the top of each limiting hole is bent to form a flange, and the limiting blocks are located in the notches.

By adopting the technical scheme, the invention achieves the following technical effects:

(1) The reverse locking push rod is pressed, the reverse locking push rod is matched with the limiting part of the first toggle mechanism to limit the first toggle mechanism to rotate, the reverse locking push rod can be limited to be separated from the limiting part through the locking mechanism, and the reverse locking state is kept;

(2) The inclined plane at the end part of the back locking push rod can guide the back locking push rod to pass through the opening part of the sliding block and enter the clamping groove of the first toggle mechanism to limit the first toggle mechanism to rotate, and the sliding block is matched with the groove on the back locking push rod to prevent the back locking push rod from being separated from the clamping groove so as to keep a back locking state;

(3) The third toggle mechanism toggles the convex block on the sliding block to move upwards to drive the sliding block to move upwards, the back locking push rod is separated from the clamping groove and the sliding block under the action of the reset spring, the first toggle mechanism can rotate freely, and unlocking can be realized from the outside of the door;

(4) When the lock cylinder is replaced, the first handle is pulled, the sliding groove is exposed, the unlocking element extends into the second accommodating groove along the sliding groove to jack up the locking piece, the lock cylinder is separated from the first sleeve to be locked, and the lock cylinder can be pulled out of the first sleeve.

(5) Through the first universal rotating mechanism and the second universal rotating mechanism, the first stirring piece and the second stirring piece can rotate in four directions, namely up, down, left and right, so that multidirectional unlocking can be realized;

(6) The reverse locking push rod is designed into a flexible structure, so that the second toggle mechanism can be ensured to rotate freely;

(7) The first angle limiting ring can limit the rotation angle of the first handle, and the second angle limiting ring can limit the rotation angle of the second handle;

(8) The sliding block is connected with the lock tongue through the connecting frame hook, so that the installation is convenient, and the fastening of a fastener is not needed.

Drawings

FIG. 1 is an overall block diagram of a reversible lock according to the present invention;

FIG. 2 is an exploded view of the reversible door lock of the present invention;

FIG. 3 is an internal structural view of the reversible lock door lock of the present invention;

FIG. 4 is a structural view of a first universal swivel mechanism of the reversible lock door lock of the present invention;

FIG. 5 is a block diagram of a first toggle member of the reversible lock door lock of the present invention;

FIG. 6 is a structural diagram of the door lock of the present invention;

FIG. 7 is a structural view of a second universal swivel mechanism of the reversible lock door lock of the present invention;

FIG. 8 is a cross-sectional view of the reversible lock door lock of the present invention;

FIG. 9 is an enlarged view taken at A of FIG. 8;

FIG. 10 is a block diagram of a second toggle member of the reversible lock door lock of the present invention;

FIG. 11 is a cross-sectional view of the reversible lock door lock of the present invention;

fig. 12 is an enlarged view of fig. 11 at B.

Detailed Description

As shown in fig. 1 to 12, the invention provides a door lock capable of locking reversely, which includes a housing 1, a first toggle mechanism 2, a reverse rotation block 3, a slider 4, a bolt 5, a reset mechanism 6 for resetting the bolt 5, and a reverse locking push rod 7, wherein the first toggle mechanism 2, the reverse rotation block 3, and the slider 4 are all disposed in the housing 1, the first toggle mechanism 2 and the reverse rotation block 3 are both hinged to the housing 1, the bolt 5 is connected to the slider 4, the first toggle mechanism 2 rotates to drive the reverse rotation block 3 to rotate, the reverse rotation block 3 rotates to drive the slider 4 to move, the reverse locking push rod 7 is disposed opposite to the first toggle mechanism 2, the first toggle mechanism 2 is provided with a limiting portion which is matched with the reverse locking push rod 7 to limit the first toggle mechanism 2 to rotate, and a locking mechanism which limits the reverse locking push rod 7 to be disengaged from the limiting portion.

As shown in fig. 3 and 4, the first toggle mechanism 2 includes a first toggle member 21 and a first universal rotating mechanism 22 that can drive the first toggle member 21 to toggle the reverse block 3 for rotation. First universal slewing mechanism 22 includes first sleeve 221, first cross round pin 222 is located in first sleeve 221, including first round pin axle 2221 and the second round pin axle 2222 that is the cross setting, the both ends of first round pin axle 2221 set up on the first sleeve 221, the both ends setting of second round pin axle 2222 is in on the casing 1, first activity hole 2213 that supplies first sleeve 221 to move about relative second round pin axle 2222 is seted up to the lateral wall of first sleeve 221, and first activity hole 2213 is the through-hole. Through the first universal rotating mechanism 22, the first toggle member 21 can rotate around the first pin 2221 and also rotate around the second pin 2222, so that the first sleeve 221 can rotate in four directions, i.e., up, down, left and right, and thus the door can be opened in different directions. As shown in fig. 5, the first toggle member 21 includes a first toggle 212 and a first top ring 213, the first toggle 212 is hinged to the housing 1, the first toggle 212 includes a first toggle portion 2121 and a first shift fork 2122, and the first toggle portion 2121 contacts the reverse block 3 for toggling the reverse block 3 to rotate. The first top ring 213 is annular, a first abutting portion 2131 is protruded from the first top ring 213, one end of the first top ring 213 abuts against the first sleeve 221, the other end of the first top ring is matched with the first fork 2122, and specifically, the first fork 2122 is matched with the sidewall of the first top ring 213. In order to make the first fork 2122 and the first top ring 213 fit more tightly, a first clamping groove 2132 is disposed on a side wall of the first top ring 213, the first fork 2122 is disposed in the first clamping groove 2132, a first pressing spring 23 is further sleeved on the first top ring 213, two ends of the first pressing spring 23 respectively abut against the first fork 2122 and the first abutting portion 2131, so that the first top ring 213 and the first sleeve 221 can be kept in a tightly attached state all the time and can rotate along with the first sleeve 221. When the first sleeve 221 rotates around the first pin 2221 and the second pin 2222, the first top ring 213 can be driven to move, the first top ring 213 moves to drive the first driving lever 212 to rotate, so as to drive the reversing block 3 to rotate, the reversing block 3 rotates to drive the sliding block 4 and the bolt 5 to move, and the bolt 5 can retract from the doorframe.

As shown in fig. 6 and 8, the sliding block 4 is located between the first toggle mechanism 2 and the back locking push rod 7, and the return mechanism 6 is disposed on the top of the sliding block 4, in this embodiment, the return mechanism 6 is a compression spring and is disposed on the top of the sliding block 4. Spacing portion is for setting up draw-in groove 211 on the first driving lever 212 of first toggle mechanism 2, the back-locking push rod 7 stretches into when the back-locking draw-in groove 211 with draw-in groove 211 cooperatees to can restrict first toggle mechanism 2 and rotate, and restrict first toggle mechanism 2 and drive the rotation of anti-rotation piece 3 and rotate 4 jack-ups of slider, at this moment, can't realize opening the door through first toggle mechanism 2. In order to keep the counter-locking push rod 7 in the clamping groove 211, a locking mechanism is further arranged, the locking mechanism comprises a limiting block arranged on the counter-locking push rod 7 and an opening part arranged on the sliding block 4 and used for the counter-locking push rod 7 to pass through, the limiting block is arranged towards the direction of the resetting mechanism 6, and the limiting block passes through the opening part and abuts against the sliding block 4 when in counter-locking. Specifically, in this embodiment, the limiting block is a groove 731 disposed on the reverse locking push rod 7, the opening portion is a through hole 42 disposed on the slider 4, and the opening portion may also be a notch located at the edge of the slider 4. The sliding block 4 is positioned in the groove 731 during the locking process to limit the movement of the locking push rod 7, and the groove 731 is arranged towards a compression spring which can press the sliding block 4 in the groove 731. In other embodiments, the limiting block may also be a protrusion disposed at the end of the reverse lock push rod 7, the protrusion is used to abut against the side surface of the slider 4 through the opening 42 of the slider 4 when the reverse lock is performed, the protrusion is also disposed toward the compression spring, and under the compression action of the compression spring, the slider 4 is compressed on the reverse lock push rod 7 and tightly attached to the protrusion, so as to limit the reverse lock push rod 7 to be disengaged from the slot 211. The end of the back locking push rod 7 is provided with a guide slope 732 for guiding the back locking push rod 7 into the mouth 42. When the lock is unlocked, the reverse locking push rod 7 is pushed, the reverse locking push rod 7 is guided by the guide inclined plane 732 at the end part of the reverse locking push rod 7, the reverse locking push rod 7 passes through the opening part 42 on the sliding block 4 and enters the clamping groove 211 of the first toggle mechanism 2 to limit the rotation of the first toggle mechanism 2, the compression spring is compressed, and under the reset action of the compression spring, the sliding block 4 is clamped into the groove 731 on the reverse locking push rod 7 to limit the first toggle mechanism 2 from being pulled out of the clamping groove 211.

As shown in fig. 3 and 8, a protrusion 41 is further disposed on the sliding block 4, a third toggle mechanism 8 is further disposed in the first toggle mechanism 2, the third toggle mechanism 8 includes a lock cylinder rod 82 that drives the protrusion 41 to move away from the lock tongue 5 when rotating, and a lock cylinder 81 that drives the lock cylinder rod 82 to rotate, and the lock cylinder 81 is located in the first sleeve 221 and can rotate in the first sleeve 221. Specifically, the plug lever 82 includes a jacking portion 821 that jacks up the protrusion 41 when rotated and a mating portion 822 that mates with the lock cylinder 81, and the jacking portion 821 is an L-shaped lever that jacks up the protrusion 41 when rotated; the matching part 822 is a matching slot, and the lock core 81 is provided with two blocks 812 which can be matched with the matching slot, so that the two matching slots are convenient to install and are crossed. When the door is locked by the back locking push rod 7, can insert the lock core 81 through the key and drive the lock core 81 and rotate, thereby drive the lock core pole 82 of being connected with the cooperation of lock core 81 and rotate, the lug 41 is stirred to jacking portion 821, thereby directly drive slider 4 and remove towards the direction of keeping away from spring bolt 5, the lock is relieved with slider 4 to the back locking push rod 7, locate under the elastic action of reset spring on the back locking push rod 7 at this moment, deviate from in the draw-in groove 211 of first toggle mechanism 2 to the back locking push rod 7, first toggle mechanism 2 can the free rotation. At this time, the door opening can be realized by rotating the first toggle mechanism 2. In this embodiment, the return spring is a conical spring 17.

As shown in fig. 4, 8 and 9, the door lock of the present invention further has a function of automatically replacing the lock cylinder, the first handle 14 is provided outside the first sleeve 221, and the lock cylinder 81 is installed inside the first sleeve 221. The outer wall of the lock core 81 is provided with a first accommodating groove 811 along the circumferential direction, the first sleeve 221 of the first toggle mechanism 2 is provided with a through hole 2211, the inner wall of the first handle 14 is provided with a second accommodating groove 141 for accommodating the locking piece 16 along the circumferential direction, and the first accommodating groove 811, the through hole 2211 and the second accommodating groove 141 are communicated to form an accommodating space for accommodating the locking piece 16. The inner wall of the first handle 14 is further provided with a sliding groove 142 along the axial direction, and the sliding groove 142 extends to the second receiving groove 141 and is communicated with the second receiving groove 141. When the lock cylinder 81 is replaced, the first handle 14 is pulled to expose the sliding groove 142, the unlocking element is inserted into the second accommodating groove 141 along the sliding groove 142 to jack up the locking element 16, the locking element is separated from the first handle 14, the first handle 14 can be detached, then the locking element 16 is removed, the lock cylinder 81 is separated from the first sleeve 221, and the lock cylinder 81 can be extracted from the first sleeve 221.

As shown in fig. 3 and 7, the second toggle mechanism 9 is arranged opposite to the first toggle mechanism 2, the second toggle mechanism 9 is hinged to the housing 1, the second toggle mechanism 9 rotates to drive the reversing block 3 to rotate, and the reversing block 3 rotates to drive the sliding block 4 to move. The second toggle mechanism 9 includes that the second toggles the piece 91 and can drive the second and dial the piece 91 and stir the universal slewing mechanism 92 of the second of the 3 pivoted of reversal pieces, the universal slewing mechanism 92 of second includes second sleeve 921, second cross round pin 922, and second cross round pin 922 is located second sleeve 921, including third round pin axle 9221 and the fourth round pin axle 9222 that is the cross setting, third round pin axle 9221 sets up on the second sleeve 921, fourth round pin axle 9222 sets up on the casing 1, the second activity hole 9211 that supplies the relative fourth round pin axle 9222 activity of second sleeve 921 is seted up to the lateral wall of second sleeve 921, and second activity hole 9211 is the through-hole. Through the second universal rotating mechanism 92, the second toggle member 91 can rotate around the third pin 9221 and also rotate around the fourth pin 9222, so that the second sleeve 921 can rotate in four directions, up, down, left and right, and thus can open the door in different directions. As shown in fig. 10, the second toggle member 91 includes a second top ring 911 and a second toggle lever 912, the second toggle lever 912 is hinged to the housing 1, the second toggle lever 912 includes a second toggle portion 9121 and a second toggle fork 9122, and the second toggle portion 9121 contacts with the reversing block 3 for toggling the reversing block 3 to rotate. The second top ring 911 is annular, a second jacking portion 9111 protrudes from the second top ring 911, one end of the second top ring 911 abuts against the second sleeve, the other end of the second top ring 911 is matched with the second shifting fork 9122, and specifically, the second shifting fork 9122 is matched with the side wall of the second top ring 911. In order to make the cooperation of second shift fork 9122 and second apical ring 911 more inseparable, be provided with the second at the lateral wall of second apical ring 911 and press from both sides groove 9112, second shift fork 9122 sets up in second presss from both sides groove 9112, still the cover is equipped with second pressure spring 93 on second apical ring 911, second pressure spring 93 both ends are supported with second shift fork 9122 and the tight portion 9111 of second top respectively mutually, can make second apical ring 911 and second sleeve remain the state of hugging closely throughout, and can rotate along with the second sleeve. When the second sleeve 921 rotates around the third pin shaft 9221 or the fourth pin shaft 9222, can drive the second top ring 911 to move, the second top ring 911 moves and drives the second driving lever 912 to rotate, thereby stirring the reverse block 3 to rotate, the reverse block 3 rotates and drives the slider 4 and the bolt 5 to move, and the bolt 5 can retract from the door frame.

The reverse locking push rod 7 is located in the second toggle mechanism 9, specifically, the inner cavities of the second top ring 911 and the second sleeve 921 are communicated to form a through hole, the reverse locking push rod 7 is arranged in the through holes of the second sleeve 921 and the second top ring 911, and the reverse locking push rod 7 comprises a button 71, an elastic member 72 and a reverse locking rod 73 which are connected in sequence. In this embodiment, the elastic element 72 is embodied as an extension spring, and can rotate in different directions, so as to ensure that the second toggle mechanism 9 can rotate in different directions.

As shown in fig. 1, fig. 3 and fig. 8, the first toggle member 21 and the second toggle member 91 are disposed in the casing 1, a protrusion is disposed in the middle of the casing 1, the first buckle plate 12 and the second buckle plate 13 are disposed on two sides of the protrusion, respectively, and the casing 1 is fixed on the door panel through the first buckle plate 12 and the second buckle plate 13. In order to limit the rotation angle of the first toggle member 21 and the second toggle member 91, a first angle limiting ring 10 and a second angle limiting ring 11 are further provided at the rear end of the housing 1. Specifically, the first cross pin 222 is installed at the tail end of the housing 1, the first sleeve 221 is externally installed and fixed with the first handle 14, the first handle 14 can rotate around two pin shafts of the first cross pin 222, and the first handle 14 can rotate to drive the first toggle member 21 to rotate. In order to limit the rotation angle of the first handle 14, a first angle limiting ring 10 is further disposed at the tail end of the housing 1, the first angle limiting ring 10 is annular, the outer wall of a part of the outer shell of the first sleeve is spherical, the part of the outer shell is located in the first angle limiting ring 10, the first cross pin 222 is located in the part of the outer shell, and the inner wall of the first angle limiting ring 10, which is matched with the part of the outer shell of the first sleeve 221, is also spherical, so that the first angle limiting ring 10 can freely rotate in the first sleeve 221. The first angle limiting ring 10 is uniformly provided with notches along the circumferential direction, one pin shaft of the first cross pin 222 penetrates through the first sleeve 221 and the notches to be connected with the shell 1, and the notches play a limiting role in the first angle limiting ring. The inner wall of the first angle limiting ring 10 is provided with a first inclined surface 101, and the first inclined surface 101 is located in the rotation direction of the first sleeve 221. When the first handle 14 is rotated, the rotation angle of the first handle 14 is limited due to the limitation of the first inclined surface 101 of the first angle limiting ring 10.

The second cross pin 922 is installed at the other end of the housing 1, a second handle 15 is installed and fixed outside the second sleeve 921, the second handle 15 can rotate around two pin shafts of the second cross pin 922, respectively, and the second handle 15 rotates to drive the second toggle member 91 to rotate. In order to limit the rotation angle of the second handle 15, a second angle limiting ring 11 is further disposed at the tail end of the housing 1, the second angle limiting ring 11 is annular, the outer wall of a part of the outer shell of the second sleeve 921 is spherical, the part of the outer shell is located in the second angle limiting ring 11, the second cross pin 922 is located in the part of the outer shell, and the inner wall of the second angle limiting ring 11, which is matched with the part of the outer shell of the second sleeve 921, is also spherical, so that the second sleeve 921 can freely rotate in the second angle limiting ring 11. Second angle limiting ring 11 evenly offers jaggedly along the circumferencial direction, one of them round pin axle of second cross round pin 922 pass the second sleeve 921 with the breach is connected with casing 1, plays and carries out spacing effect to second angle limiting ring 11. The outer wall of the portion of the second sleeve 921 located inside the second angle limiting ring 11 is also spherical so that the second sleeve 921 can freely rotate inside the second angle limiting ring 11. The second angle limiting ring 11 has the same structure as the first angle limiting ring 10, and a second inclined surface is arranged on the inner wall of the second angle limiting ring 11 and is located in the rotation direction of the second sleeve 921. When the second handle 15 is rotated, the rotation angle of the second handle 15 is limited due to the limitation of the second slope on the second angle limiting ring.

As shown in fig. 11 and 12, the sliding block 4 is connected with the bolt 5 through a connecting frame 18. Be provided with couple 43 on the slider 4, be provided with the confession on the link 18 the mounting hole 181 of couple hook is provided with mounting groove 51 on the spring bolt 5, mounting groove 51 with link 18 cooperatees. The bolt 5 is arranged in the bolt shell 20 and can move along the bolt shell 20, and the bolt shell 20 is fastened on the shell through a fixing frame 19. The fixing frame 19 is U-shaped, and includes a bottom wall 191 and a side wall 192 spaced from the bottom wall 191, and the side wall 192 is fastened to the housing 1 to fix the fixing frame to the housing 1. Specifically, the side wall 192 is provided with a first hook 1921, and the housing 1 is provided with a second hook 101 engaged with the first hook 1921. Spacing is provided with stopper 201 on spring bolt shell 20, and stopper 201 top bending forms flange 2011, is provided with the breach on the diapire 191, and stopper 201 passes the breach, and flange 2011 prevents that stopper 201 from breaking away from the breach.

Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A door lock capable of locking reversely is characterized in that: the lock comprises a shell, a first toggle mechanism, a reversing block, a sliding block, a spring bolt, a reset mechanism for resetting the spring bolt, a reversing push rod and a locking mechanism, wherein the first toggle mechanism, the reversing block and the sliding block are all arranged in the shell, the first toggle mechanism and the reversing block are both hinged with the shell, the spring bolt is connected with the sliding block, the first toggle mechanism rotates to drive the reversing block to rotate, the reversing block rotates to drive the sliding block to move, the reversing push rod is arranged opposite to the first toggle mechanism, the first toggle mechanism is provided with a limiting part which is matched with the reversing push rod to limit the rotation of the first toggle mechanism, and the lock also comprises a locking mechanism for limiting the reversing push rod to be separated from the limiting part;

the lock is characterized by also comprising a connecting frame, wherein a hook is arranged on the sliding block, a mounting hole for hooking the hook is arranged on the connecting frame, a mounting groove is arranged on the lock tongue, and the mounting groove is matched with the connecting frame;

the lock bolt is characterized by further comprising a lock bolt shell and a fixed frame, wherein the fixed frame comprises a bottom wall and a side wall, the side wall is buckled and connected with the shell, and a notch is formed in the bottom wall; limiting blocks are arranged on the bolt shell at intervals, the tops of the limiting blocks are bent to form flanges, and the limiting blocks are located in the notches;

the spring bolt sets up in the spring bolt shell to can remove along the spring bolt shell, the spring bolt shell passes through the mount fastening on the casing.

2. A reversible lock door lock according to claim 1, characterized in that: the limiting part is a clamping groove which can be matched with the reverse locking push rod.

3. A reversible lock door lock according to claim 2, characterized in that: the locking mechanism comprises a limiting block arranged on the counter-locking push rod and a mouth part arranged on the sliding block and used for the counter-locking push rod to pass through, the limiting block faces to the direction of the reset mechanism, and the limiting block passes through the mouth part and abuts against the sliding block when in counter-locking.

4. A reversible lock door lock according to claim 3, characterized in that: the end part of the back locking push rod is provided with a guide inclined plane for guiding the back locking push rod to pass through the opening part.

5. A reversible lock door lock according to claim 3, characterized in that: the sliding block is further provided with a convex block, the first toggle mechanism is further internally provided with a third toggle mechanism, the third toggle mechanism comprises a lock cylinder rod and a lock cylinder, the lock cylinder rod drives the convex block to move towards the direction far away from the lock tongue when rotating, and the back lock push rod is provided with a return spring.

6. A reversible lock and lock door according to claim 5, characterized in that: still include the first in command, the first in command cover is established on first toggle mechanism, first holding tank has been seted up on the outer wall of lock core, sets up the through-hole on first toggle mechanism, sets up the second holding tank on the first in command inner wall, and first holding tank, through-hole and second holding tank communicate with each other and form the accommodation space that is used for holding the locking piece, are provided with the spout that supplies the unblock component to stretch into on the first in command inner wall, and the spout extends to second holding tank department and communicates with the second holding tank.

7. A reversible lock door lock according to claim 1, characterized in that: the first toggle mechanism comprises a first toggle piece and a first universal rotating mechanism, the first universal rotating mechanism comprises a first sleeve and a first cross pin, the first cross pin comprises a first pin shaft and a second pin shaft which are arranged in a cross manner, the first pin shaft is arranged on the first sleeve, the second pin shaft is fixed on the shell, and the side wall of the first sleeve is provided with a first movable hole for the first sleeve to move relative to the second pin shaft; the first shifting piece comprises a first top ring and a first shifting rod for shifting the reverse rotation block to rotate, the first shifting rod is hinged to the shell and comprises a first shifting fork, one end of the first top ring abuts against the first sleeve, and the other end of the first top ring is matched with the first shifting fork.

8. A reversible lock door lock according to claim 7, characterized in that: the first top ring is provided with a first tight pushing part in a protruding mode, the first top ring is further sleeved with a first compression spring, and two ends of the first compression spring are respectively abutted to the first shifting fork and the first tight pushing part.

9. A reversible lock door lock according to claim 7, characterized in that: the tail end of the shell is further provided with a first angle limiting ring, the outer wall of a part of shell of the first sleeve is spherical, the part of shell is located in the first angle limiting ring, the first cross pin is located in the part of shell, the inner wall of the first angle limiting ring matched with the part of shell is also spherical, the inner wall of the first angle limiting ring is further provided with a first inclined plane, and the first inclined plane is located in the rotating direction of the first sleeve.

10. A reversible lock door lock according to claim 1, characterized in that: the sliding block is hinged to the shell, the second shifting mechanism rotates to drive the reversing block to rotate, and the reversing block rotates to drive the sliding block to move.

11. A reversible lock door lock according to claim 10, characterized in that: the second toggle mechanism comprises a second toggle piece and a second universal rotating mechanism, the second universal rotating mechanism comprises a second sleeve and a second cross pin, the second cross pin comprises a third pin shaft and a fourth pin shaft which are arranged in a cross shape, the third pin shaft is arranged on the second sleeve, the fourth pin shaft is fixed on the shell, a second movable hole for the second sleeve to move relative to the fourth pin shaft is formed in the side wall of the second sleeve, the second toggle piece comprises a second top ring and a toggle block rotating second toggle rod, the second toggle rod is hinged to the shell, the second toggle rod comprises a second shifting fork, one end of the second top ring abuts against the second sleeve, and the other end of the second toggle rod is matched with the second shifting fork.

12. The reversible lock door lock according to claim 11, wherein: the second top ring is provided with a second tight-pushing part in a protruding mode, a second compression spring is further sleeved on the second top ring, and two ends of the second compression spring are respectively abutted to the second shifting fork and the second tight-pushing part.

13. The reversible lock door lock according to claim 11, wherein: the center of second apical ring be provided with the through-hole of second sleeve intercommunication, the back-locking push rod sets up in the through-hole of second sleeve and second stirring piece, the back-locking push rod is including the button, elastic component and the back locking pole that connect gradually.

14. The reversible lock door lock according to claim 11, wherein: the tail end of the shell is further provided with a second angle limiting ring, the outer wall of a part of shell of the second sleeve is spherical, the part of shell is located in the second angle limiting ring, the second cross pin is located in the part of shell, the inner wall of the second angle limiting ring matched with the part of shell is also spherical, the inner wall of the second angle limiting ring is further provided with a second inclined surface, and the second inclined surface is located in the rotating direction of the second sleeve.