CN114109139B

CN114109139B - Locking labor-saving type locking mechanism

Info

Publication number: CN114109139B
Application number: CN202111411450.6A
Authority: CN
Inventors: 殷雄雄; 陈涛
Original assignee: Zhejiang Jiahe Lock Industry Co ltd
Current assignee: Zhejiang Jiahe Lock Industry Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-10-25
Anticipated expiration: 2041-11-25
Also published as: CN114109139A

Abstract

The invention discloses a locking labor-saving type locking mechanism, which comprises: a latch bolt assembly for performing unlocking and locking; the braking assembly comprises a main braking part for braking the bolt assembly and an auxiliary braking part for braking the main braking part, and elastic parts for keeping respective braking trends are respectively arranged on the main braking part and the auxiliary braking part; in the unlocking process, the main braking part and the auxiliary braking part simultaneously release braking force, and in the locking process, the auxiliary braking part and the main braking part sequentially release braking force; the thumb wheel provides moving power for the lock tongue assembly and the brake assembly; the linkage assembly comprises a first linkage piece arranged between the thumb wheel and the brake assembly and a second linkage piece arranged between the thumb wheel and the lock tongue assembly. The invention reasonably distributes the braking force by arranging the main braking part and the auxiliary braking part, realizes the sectional force release in the locking process on the premise of ensuring that the total braking force is not changed and the anti-prying performance of the lock body is not influenced, and has more labor-saving locking.

Description

Locking labor-saving type locking mechanism

Technical Field

The invention belongs to the technical field of locks, and particularly relates to a locking labor-saving type locking mechanism.

Background

The lock comprises a lock bolt assembly and a thumb wheel, the lock bolt is controlled to move through rotation of the thumb wheel, unlocking and locking are achieved, in order to brake the lock bolt at a preset position, a braking part is further arranged on a locking mechanism, therefore, in the locking process, the braking force of the braking part is firstly released, the lock bolt assembly can only move, and in order to improve the anti-prying performance of the lock body, the braking part needs to provide a large enough braking force. The existing locking mechanism is mainly characterized in that the thumb wheel directly applies force to the spring bolt assembly in the locking process, the spring bolt assembly transfers the force to the braking part in the moving process, the braking part generates displacement, and the braking to the spring bolt assembly is removed, so that enough large braking force needs to be overcome instantaneously in the force application process by the thumb wheel, the locking resistance is large, the locking is hard, the thumb wheel is easy to damage, and the use experience and the service life of the lock body are influenced.

Disclosure of Invention

Aiming at the problem of difficult locking in the prior art, the invention provides the locking labor-saving locking mechanism, which can release the braking force in a locking process in a segmentation manner and reduce the locking resistance on the premise of not influencing the anti-prying performance of a lock body.

The invention aims to be realized by the following technical scheme:

a lock-out effort-saving locking mechanism comprising:

a latch bolt assembly for performing unlocking and locking;

the braking assembly comprises a main braking part for braking the bolt assembly and an auxiliary braking part for braking the main braking part, and elastic parts for keeping respective braking trends are respectively arranged on the main braking part and the auxiliary braking part; in the unlocking process, the main braking part and the auxiliary braking part simultaneously release braking force, and in the locking process, the auxiliary braking part and the main braking part sequentially release braking force;

the thumb wheel provides moving power for the lock tongue assembly and the brake assembly;

the linkage assembly comprises a first linkage piece arranged between the thumb wheel and the brake assembly and a second linkage piece arranged between the thumb wheel and the lock tongue assembly.

Preferably, the thumb wheel is provided with a first lock tongue poking part, a second lock tongue poking part and a brake part poking part, when the thumb wheel rotates forwards, the brake part poking part and the first linkage part are in linkage relation, the brake part poking part and the first linkage part are matched with each other to simultaneously release the braking force provided by the main brake part and the auxiliary brake part, and the first lock tongue poking part and the second linkage part are in linkage relation to provide unlocking driving force for the lock tongue assembly; when the thumb wheel reverse rotation, the braking piece stirring portion acts on vice braking piece, removes the braking force that vice braking piece provided, and second spring bolt stirring portion and the linkage of second linkage provide the shutting drive power for the spring bolt subassembly to remove the braking force that the owner braking piece provided through the spring bolt subassembly.

Preferably, the bolt assembly comprises a supporting plate and a bolt fixedly arranged on the supporting plate, and the supporting plate can drive the bolt to perform reciprocating translation between a locking position and an unlocking position; the main braking part can reciprocate between a braking position and a releasing position, and the translation direction of the main braking part is vertical to the translation direction of the supporting plate.

Preferably, the supporting plate and the main braking part are provided with mutually matched clamping and stopping structures, when the main braking part is located at a braking position, the main braking part is matched with the clamping and stopping structures of the supporting plate, and when the main braking part is located at a releasing position, the main braking part is not matched with the clamping and stopping structures of the supporting plate.

Preferably, the clamping structure is clamping teeth arranged on the supporting plate and clamping grooves arranged on the main braking part, at least two clamping teeth are arranged, and each clamping tooth is provided with a force application inclined surface and a clamping surface; the force application inclined plane only applies extrusion force to the main braking part when the supporting plate moves towards the locking position, so that the main braking part is translated to the releasing position from the braking position; the stop surface prevents the pallet from moving toward the unlocked position.

Preferably, the first linkage piece is rotatably arranged on the rotating shaft, the first linkage piece is provided with a first stress part and a force application part, the first stress part and the force application part are arranged on two sides of the rotating shaft, at least part of the first stress part is located on a positive rotation track of the poking part of the braking part, and the force application part can act on the main braking part to enable the main braking part to move to the release position from the braking position.

Preferably, blocking structures matched with each other are arranged on the main braking part and the auxiliary braking part, the auxiliary braking part can move in a reciprocating translation or in a rotating manner between a blocking position and an avoiding position, when the auxiliary braking part is located at the blocking position, the main braking part is matched with the blocking structures of the auxiliary braking part, and when the auxiliary braking part is located at the avoiding position, the blocking structures of the main braking part and the auxiliary braking part are disengaged.

Preferably, the auxiliary braking member is provided with a resistance member, the resistance member abuts against the force application part of the first linkage member, and the auxiliary braking member provides rotation resistance for the first linkage member through the resistance member.

Preferably, the end part of the auxiliary braking part is provided with a stress end head, and the stress end head is at least partially positioned on the reverse track of the poking part of the braking part.

Preferably, the second linkage member comprises a rotating member and a force applying arm, the rotating member is provided with a rotating shaft, the rotating member can rotate around the rotating shaft, the rotating member is provided with a second stressed portion, and at least part of the second stressed portion is located on a forward rotation track of the first lock tongue shifting portion and a reverse rotation track of the second lock tongue shifting portion.

Preferably, one end of the force applying arm is fixedly connected with the rotating piece, the other corresponding end of the force applying arm extends towards the supporting plate and is provided with a second pin hole, a second connecting pin is fixedly arranged on the supporting plate, and the second connecting pin is inserted into the second pin hole; the second pin hole is a waist-shaped hole.

Preferably, the braking part shifting part is located between the first stress part and the stress end, the second stress part is located between the first lock tongue shifting part and the second lock tongue shifting part, a displacement gap from the braking part shifting part rotating reversely to the stress end is smaller than a displacement gap from the second lock tongue shifting part rotating reversely to the second stress part, and a displacement gap from the braking part shifting part rotating normally to the first stress part is smaller than a displacement gap from the first lock tongue shifting part rotating normally to the second stress part.

Compared with the prior art, the invention has the following beneficial effects: the main braking part and the auxiliary braking part are arranged to divide the total braking force of the locking mechanism into a plurality of forces, so that the sectional force release can be realized in the locking process, the locking resistance is reduced on the premise that the total braking force is unchanged and the lock body is ensured to have a prying-resistant function, the locking is more labor-saving, and all force application parts are not easy to damage; the structure and mutual positions of the lock tongue assembly, the brake assembly, the dial wheel and the linkage assembly are reasonably arranged, so that the brake assembly simultaneously releases the brake force in the unlocking process to keep the unlocking resistance, and the brake assembly sequentially releases the brake force in the locking process, thereby effectively reducing the locking resistance; by optimizing the structure and the assembly mode of each part, the driving force provided by the thumb wheel can be effectively transmitted, and the matching of each part is efficient and reliable; whole locking mechanism compact structure can adapt to the general piece of lock body, and the suitability is strong.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a schematic view of a latch bolt assembly according to the present invention;

FIG. 3 is a schematic view showing a brake assembly according to embodiment 1;

FIG. 4 is a schematic structural view of a thumb wheel and linkage assembly according to embodiments 1 and 2;

FIG. 5 is a schematic structural view of example 2;

FIG. 6 is a schematic view showing a brake assembly according to embodiment 2;

FIG. 7 is a schematic structural view of example 3;

FIG. 8 is a schematic view showing the construction of a latch assembly and a brake assembly in embodiment 3;

FIG. 9 is a schematic view of the thumb wheel and linkage assembly of embodiment 3;

the labels in the figure are: a pallet 21; a retaining tooth 211; a second connecting pin 212; a first guide groove 213; a latch bolt 22; a main brake member 31; a first tension spring 311; a stressed elbow 312; a first pin hole 315; a fold-over portion 314; a stopper 313; a secondary stopper 32; a second tension spring 321; a stressed tip 322; a blocking wall 323; a blocking portion 324; a bump 325; a thumb wheel 40; a first latch striking part 41; a second bolt toggle 42; a stopper striking part 43; a first linkage member 51; the first force receiving portion 511; a force application part 512; a first connecting pin 513; a second linkage member 52; a rotation member 521; the second force receiving portion 5211; an application arm 522; a second pin hole 5221; a first guide pin 61; a second guide pin 62; and a third guide pin 63.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

example 1

As shown in fig. 1-4, the present embodiment discloses a lock effort saving type locking mechanism, which includes a bolt assembly disposed in a lock case for performing unlocking and locking; a brake assembly for providing a braking force to latch bolt 22 to maintain it in a predetermined position; the thumb wheel 40 is rotatably arranged in the lock shell and provides moving power for the bolt assembly and the brake assembly; and the linkage assembly is arranged in the lock shell and realizes linkage of the thumb wheel 40 and the bolt assembly and linkage of the thumb wheel 40 and the brake assembly.

The lock tongue assembly comprises a supporting plate 21 and three lock tongues 22 fixedly arranged on the supporting plate 21, wherein the number of the lock tongues 22 is three, and the supporting plate 21 drives the lock tongues 22 to move in a reciprocating translation manner between a locking position and an unlocking position; the braking assembly comprises a main braking member 31 for braking the bolt assembly and a secondary braking member 32 for braking the main braking member 31, and the main braking member 31 and the secondary braking member 32 are respectively provided with an elastic member for keeping respective braking trends. The two braking parts are arranged and the elastic parts are respectively arranged, so that the total braking force of the lock tongue component can be divided into two component forces, the segmented force release is realized, and the locking resistance is reduced on the premise that the total braking force is unchanged and the anti-prying function of the lock body is ensured; in the unlocking process, the two brake assemblies simultaneously release the braking force to keep the unlocking resistance, and in the locking process, the auxiliary brake member 32 and the main brake member 31 sequentially release the braking force, so that the locking resistance is effectively reduced compared with the instant application of large enough release force.

Thumb wheel 40 is installed on the handle square pole, and the linkage subassembly includes setting up between thumb wheel 40 and the spring bolt subassembly in order to realize the second linkage piece 52 of both linkages to and set up the first linkage piece 51 between thumb wheel 40 and braking component. The dial wheel 40 is sequentially formed with a first lock tongue toggle part 41, a second lock tongue toggle part 42 and a brake part toggle part 43 along the clockwise direction, and the three toggle parts are all raised heads protruding out of the outer peripheral surface of the dial wheel 40 and are arranged at intervals along the circumferential direction of the dial wheel 40. When the thumb wheel 40 rotates forward, the detent toggle part 43 firstly links with the first linkage part 51, the two cooperate to simultaneously release the braking force provided by the main detent 31 and the auxiliary detent 32, the first bolt toggle part 41 then links with the second linkage part 52 to provide an unlocking driving force for the bolt assembly, the forward rotation of the thumb wheel 40 specifically means clockwise rotation to control the bolt assembly to perform an unlocking action, at this time, the detent toggle part 40 only has a linkage relation with the first linkage part 51 and has no linkage relation with the auxiliary detent 32, the two cooperate to release the braking of the braking assembly on the bolt assembly, the first bolt toggle part 41 then cooperates with the second linkage part 52 to enable the bolt assembly to complete the unlocking action, therefore, when the unlocking action is performed, the braking force of the main detent 31 and the auxiliary detent 32 is simultaneously released, the resistance is large, and the lock body is ensured to be prized. When the thumb wheel 40 rotates reversely, the braking part toggle part 43 acts on the auxiliary braking part 32 first to release the braking force provided by the auxiliary braking part 32, the second bolt toggle part 42 and the second linkage part 52 are linked to provide a locking driving force for the bolt assembly, and the braking force provided by the main braking part 31 is released through the bolt assembly, the reverse rotation of the thumb wheel 40 specifically refers to counterclockwise rotation to control the bolt assembly to perform the locking action, the braking part toggle part 43 directly acts on the auxiliary braking part 32 first to release the braking force of the auxiliary braking part 32 on the main braking part 31, the second bolt toggle part 42 is linked with the second linkage part 52 to provide the locking driving force for the bolt assembly, the force can be applied to the main braking part 31 in the moving process of the bolt assembly to release the braking force of the main braking part 31 on the bolt assembly, therefore, when the locking action is performed, the braking force of the braking assembly is released in sections, the braking force of the auxiliary braking part 32 on the main braking part 31 is released first, and the braking force of the main braking part 31 is released in batches, the resistance is small and the force is saved.

The supporting plate 21, the main braking part 31 and the auxiliary braking part 32 are all of sheet structures, at least part of the three parts are stacked, clamping and stopping structures matched with each other are arranged on the supporting plate 21 and the main braking part 31, the main braking part 31 can move in a reciprocating translation mode between a braking position and a releasing position, when the main braking part 31 is located at the braking position, the main braking part 31 is matched with the clamping and stopping structures of the supporting plate 21, and when the main braking part 31 is located at the releasing position, the clamping and stopping structures of the main braking part 31 and the supporting plate 21 are not matched. The clamping structure comprises clamping teeth 211 arranged on the supporting plate 21 and clamping grooves arranged on the main braking part 31, the main braking part 31 is provided with a turnover part 314 facing the supporting plate 21, the clamping grooves are formed in the turnover part 314, the number of the clamping teeth 211 is three, and each clamping tooth 211 is provided with a force application inclined plane and a clamping surface; the force application inclined surface applies extrusion force to the main braking piece 31 only when the supporting plate 21 moves towards the locking position, so that the main braking piece 31 is translated from the braking position to the releasing position, and the clamping surface prevents the supporting plate 21 from moving towards the unlocking position so as to prevent the supporting plate from being prized.

The first linkage member 51 is a rotating block, a first force receiving portion 511 and a force applying portion 512 are formed on the first linkage member 51, the first force receiving portion 511 and the force applying portion 512 are both arranged to protrude out of a main body of the first linkage member 51, a rotating shaft is arranged between the first force receiving portion 511 and the force applying portion 512, the first linkage member 51 can rotate around the rotating shaft, the first force receiving portion 511 is located on a positive rotation track of the braking member shifting portion 43, and the force applying portion 512 can act on the main braking member 31 to enable the main braking member 31 to move from a braking position to a releasing position. The driving force provided by the wheel 40 can be transmitted to the main brake 31 using a rotating block as the first link 51, and the driving force provided by the wheel 40 can be more efficiently transmitted to the main brake 31 using the principle of leverage.

The main braking part 31 and the auxiliary braking part 32 are provided with blocking structures which are matched with each other, the auxiliary braking part 32 can move in a reciprocating translation mode between a blocking position and an avoiding position, when the auxiliary braking part 32 is located at the blocking position, the main braking part 31 is matched with the blocking structures of the auxiliary braking part 32, and when the auxiliary braking part 32 is located at the avoiding position, the blocking structures of the main braking part 31 and the auxiliary braking part 32 are not matched. The blocking structure is a stop 313 formed on the main brake member 31 and a blocking wall 323 formed on the auxiliary brake member 32, when the auxiliary brake member 32 is located at a blocking position, the blocking wall 323 abuts against the stop 313, and when the auxiliary brake member is located at an avoiding position, the blocking wall 323 avoids the stop 313. When the main braking member 31 actively releases the braking force, that is, in the locking process, when the first linkage member 51 applies force to the main braking member 31, the blocking structure can be used as a linkage structure between the main braking member 31 and the auxiliary braking member 32, so that the main braking member 31 can drive the auxiliary braking member 32 to move together, and the braking force on the lock tongue assembly is released; when the main brake 31 is not stressed or the braking force is passively released, the blocking structure can be used as a braking structure of the auxiliary brake 32 for providing the braking force for the main brake 31.

The translation directions of the main brake piece 31 and the auxiliary brake piece 32 are both perpendicular to the translation direction of the supporting plate 21, one end of the main brake piece 31 in the translation direction is connected with a first tension spring 311, the other end of the main brake piece forms a stress elbow 312 matched with the force application part 512 of the first linkage piece 51, and the stress elbow 312 abuts against the force application part 512 of the first linkage piece 51; in the translation direction of the auxiliary brake member 32, one end is connected with a second tension spring 321, and the other end is formed with a stress end head 322 matched with the brake member shifting portion 43, wherein the stress end head 322 is positioned on the reverse track of the brake member shifting portion 43. In order to ensure the reliability of the braking force applied to the latch bolt assembly, the tension of the first tension spring 311 is greater than the tension of the second tension spring 321, the main braking member 31 directly acts on the latch bolt assembly, the braking force is provided through the clamping force, and compared with the auxiliary braking member 32, the latch bolt assembly is indirectly braked through the blocking force, and the braking reliability can be effectively improved through the distribution of more braking force of the main braking member 31.

The second linkage member 52 includes a rotation member 521 and a force applying arm 522, the rotation member 521 is provided with a rotation shaft, the rotation member 521 can rotate around the rotation shaft, the rotation member 521 is provided with a second force receiving portion 5211, and the second force receiving portion 5211 is located on a forward rotation track of the first bolt shifting portion 41 and a reverse rotation track of the second bolt shifting portion 42. One end of the force applying arm 522 is fixedly connected to the rotating member 521, the other corresponding end of the force applying arm extends toward the supporting plate 21 and is provided with a second pin hole 5221, the supporting plate 21 is fixedly provided with a second connecting pin 212, the second connecting pin 212 is inserted into the second pin hole 5221, and the second connecting pin 212 is arranged in the middle of the supporting plate 21; to avoid jamming, the second pin hole 5221 is a kidney-shaped hole. The rotation member 521 is matched with the force applying arm 522 to convert the rotation of the thumb wheel 40 into the translation of the latch bolt assembly, and the lever principle is utilized to transmit the driving force provided by the thumb wheel 40 to the latch bolt assembly more efficiently, so that the latch bolt 22 can reach the target position only by small displacement and force application of the thumb wheel 40, and the labor saving and the efficiency are high. When thumb wheel 40 corotation, spring bolt 22 is by the translation of locking position to unlocking position, realizes unblanking, and when thumb wheel 40 reversal, spring bolt 22 is by unlocking position translation to locking position, realizes shutting.

The braking member shifting portion 43 is located between the first force receiving portion 511 and the force receiving end 322, the second force receiving portion 5211 is located between the first bolt shifting portion 41 and the second bolt shifting portion 42, and the displacement gap of the braking member shifting portion 43 when the braking member shifting portion 43 is reversed to the force receiving end 322 is smaller than the displacement gap of the second bolt shifting portion 42 when the second bolt shifting portion 42 is reversed to the second force receiving portion 5211. According to the arrangement, in the unlocking process, the shifting wheel 40 rotates forwards, firstly, force is applied to the first linkage piece 51, the first linkage piece 51 applies force to the main braking piece 31, the main braking piece 31 transmits force to the auxiliary braking piece 32 through the blocking structure, the main braking piece 31 and the auxiliary braking piece 32 move simultaneously to release braking on the lock tongue assembly, then, the shifting wheel 40 applies unlocking driving force to the lock tongue assembly through the second linkage piece 52, after the lock tongue 22 reaches the unlocking position, the external force of the shifting wheel 40 is removed, the main braking piece 31 is reset to the braking position from the release position, the auxiliary braking piece 32 is reset to the blocking position from the avoidance position, and the two braking pieces are matched to recover braking on the lock tongue assembly. In this embodiment, the first force receiving portion 511 of the first linking member 51 and the force receiving end 322 of the auxiliary braking member 32 are respectively attached to two sides of the braking member shifting portion 43, so that the shifting wheel 40 can rapidly apply force to the first linking member 51 and the auxiliary braking member 32 during forward rotation and reverse rotation, the braking members rapidly react, the unlocking and locking efficiency is improved, and idle rotation of the shifting wheel 40 is avoided.

The lock shell comprises a bottom plate and side plates, wherein a lock hole for the bolt 22 to extend out is formed in each side plate, three guide pins are fixedly arranged on the bottom plate and respectively comprise a first guide pin 61, a second guide pin 62 and a third guide pin 63, a first guide groove 213 matched with the first guide pin 61 is formed in the supporting plate 21, the first guide groove 213 is formed in the translational direction of the supporting plate 21, and the length of the first guide groove 213 is matched with the displacement distance of the supporting plate 21; a second guide groove matched with the second guide pin 62 and a third guide groove matched with the third guide pin 63 are formed in the main braking piece 31, the second guide groove and the third guide groove are arranged along the translation direction of the main braking piece 31, and the length of the second guide groove and the length of the third guide groove are matched with the displacement distance of the main braking piece 31; the auxiliary braking member 32 is provided with a fourth guide groove matched with the second guide pin 62 and a fifth guide groove matched with the third guide pin 63, the fourth guide groove and the fifth guide groove are arranged along the translation direction of the auxiliary braking member 32, and the length of the second guide groove and the length of the third guide groove are matched with the displacement distance of the auxiliary braking member 32.

Example 2

As shown in fig. 2, 4, 5 and 6, the present embodiment discloses a locking effort-saving type locking mechanism, which includes a bolt assembly for performing unlocking and locking; a brake assembly for providing a braking force to latch bolt 22 to maintain it in a predetermined position; the thumb wheel 40 is rotatably arranged in the lock shell and provides moving power for the lock tongue assembly and the brake assembly; and the linkage assembly realizes the linkage of the thumb wheel 40 and the bolt assembly and the linkage of the thumb wheel 40 and the brake assembly.

The lock tongue component comprises a supporting plate 21 and three lock tongues 22 fixedly arranged on the supporting plate 21, and the supporting plate 21 drives the lock tongues 22 to move in a reciprocating translation manner between a locking position and an unlocking position; the brake assembly comprises a main brake member 31 for braking the latch bolt assembly and a secondary brake member 32 for braking the main brake member 31, wherein the main brake member 31 and the secondary brake member 32 are respectively provided with an elastic member for keeping respective braking tendency. The two braking parts are arranged and the elastic parts are respectively arranged, so that the total braking force of the lock tongue component can be divided into two component forces, the segmented force release is realized, and the locking resistance is reduced on the premise that the total braking force is unchanged and the anti-prying function of the lock body is ensured; in the unlocking process, the two brake assemblies simultaneously release the braking force to keep the unlocking resistance, and in the locking process, the auxiliary brake piece 32 and the main brake piece 31 sequentially release the braking force, so that the locking resistance is effectively reduced compared with the instant application of a large enough release force.

The main braking part 31 and the auxiliary braking part 32 are provided with mutually matched blocking structures, the auxiliary braking part 32 is provided with a rotating shaft, the auxiliary braking part 32 can rotate back and forth between a blocking position and an avoiding position, when the auxiliary braking part 32 is positioned at the blocking position, the main braking part 31 is matched with the blocking structures of the auxiliary braking part 32, and when the auxiliary braking part 32 is positioned at the avoiding position, the blocking structures of the main braking part 31 and the auxiliary braking part 32 are not matched. The blocking structure is a folded part 314 formed on the main braking member 31 and a blocking part 324 formed on the auxiliary braking member 32, when the auxiliary braking member 32 is located at a blocking position, the blocking part 324 abuts against the folded part 314, and the auxiliary braking member 32 blocks the main braking member 31 from moving from a braking position to a releasing position; when the secondary stopper 32 is in the escape position, the blocking of the primary stopper 31 is released. When the braking force of the main braking member 31 is actively released, namely in the locking process, when the first linkage member 51 applies force to the main braking member 31, the blocking structure can be used as a linkage structure between the main braking member 31 and the auxiliary braking member 32, so that the main braking member 31 can drive the auxiliary braking member 32 to move together to release the braking force to the bolt assembly; the blocking structure can serve as a braking structure for providing braking force to the main brake member 31 when the main brake member 31 is not subjected to force or when the braking force is passively released, i.e. when the first linkage member 51 is not applied with force.

The translation direction of the main brake member 31 is perpendicular to the translation direction of the supporting plate 21, one end of the main brake member 31 in the translation direction is connected with a first tension spring 311, the other end of the main brake member 31 is formed with a stress elbow 312 matched with the force application part 512 of the first linkage member 51, and the stress elbow 312 abuts against the force application part 512 of the first linkage member 51; the auxiliary braking member 32 is a bending member, the rotating shaft is arranged at the bending position, a torsion spring is arranged on the rotating shaft, one end of the auxiliary braking member 32 is a blocking part 324, the other end is formed with a stress end head 322 matched with the braking member shifting part 43, and the stress end head 322 is positioned on the reverse track of the braking member shifting part 43. In order to ensure the reliability of the braking force applied to the latch bolt assembly, the tension of the first tension spring 311 is greater than the torsion of the torsion spring, the main braking member 31 directly acts on the latch bolt assembly and provides the braking force through the clamping force, and compared with the auxiliary braking member 32 which indirectly brakes the latch bolt assembly through the blocking force, the main braking member 31 distributes more braking force to effectively improve the braking reliability.

The second linkage member 52 includes a rotation member 521 and a force applying arm 522, the rotation member 521 is provided with a rotation shaft, the rotation member 521 can rotate around the rotation shaft, the rotation member 521 is provided with a second force receiving portion 5211, and the second force receiving portion 5211 is located on a forward rotation track of the first bolt shifting portion 41 and a reverse rotation track of the second bolt shifting portion. One end of the force applying arm 522 is fixedly connected to the rotating member 521, the other corresponding end of the force applying arm extends toward the supporting plate 21 and is provided with a second pin hole 5221, the supporting plate 21 is fixedly provided with a second connecting pin 212, the second connecting pin 212 is inserted into the second pin hole 5221, and the second connecting pin 212 is arranged in the middle of the supporting plate 21; to avoid the occurrence of the jamming, the second pin hole 5221 is a kidney-shaped hole. The rotating member 521 is matched with the force applying arm 522 to convert the rotation of the thumb wheel 40 into the translation of the latch bolt assembly, and the driving force provided by the thumb wheel 40 is transmitted to the latch bolt assembly more efficiently by using the lever principle, so that the latch bolt 22 can reach a target position by only small displacement and force application of the thumb wheel 40, and the lever type mechanical lock is labor-saving and efficient. When thumb wheel 40 corotates, spring bolt 22 translates to the position of unblanking by the position of shutting, realizes unblanking, and when thumb wheel 40 reverses, spring bolt 22 translates to the position of shutting by the position of unblanking, realizes shutting.

The arrangement that the braking member shifting portion 43 is located between the first force receiving portion 511 and the force receiving end 322, the second force receiving portion 5211 is located between the first locking tongue shifting portion 41 and the second locking tongue shifting portion 42, and the displacement gap of the braking member shifting portion 43 when the braking member shifting portion 43 is reversed to the force receiving end 322 is smaller than the displacement gap of the second locking tongue shifting portion 42 when the second locking tongue shifting portion 42 is reversed to the second force receiving portion 5211 can ensure that in the locking process, the shifting wheel 40 firstly applies force to the auxiliary braking member 32 and then applies force to the locking tongue assembly, namely the auxiliary braking member 32 releases the braking force to the main braking member 31, the shifting wheel 40 applies locking driving force to the locking tongue assembly through the second linking member 52, the supporting plate 21 applies force to the main braking member 31 through the clamping teeth 211 in the translation process, so that the main braking member 31 is displaced, the braking to the locking tongue assembly is released, after the locking tongue 22 reaches the locking position, the external force of the shifting wheel 40 is removed, the main braking member 31 is reset under the action of the first tension spring 311, the clamping teeth of the corresponding position on the supporting plate 21 are clamped in the clamping teeth of the main braking member 31, and the auxiliary braking spring 32 is restored to the original position under the action of the second tension spring 321. In the unlocking process, the shifting wheel 40 rotates forwards, firstly, force is applied to the first linkage piece 51, the first linkage piece 51 applies force to the main braking piece 31, the main braking piece 31 transfers force to the auxiliary braking piece 32 through the blocking structure, the main braking piece 31 and the auxiliary braking piece 32 move simultaneously to release braking on the lock tongue assembly, then, the shifting wheel 40 applies unlocking driving force to the lock tongue assembly through the second linkage piece 52, after the lock tongue 22 reaches the unlocking position, the external force of the shifting wheel 40 is removed, the main braking piece 31 is reset to the braking position from the releasing position, the auxiliary braking piece 32 is reset to the blocking position from the avoiding position, and the two braking pieces are matched to restore braking on the lock tongue assembly. In this embodiment, the first force receiving portion 511 of the first link 51 and the force receiving end 322 of the secondary braking member 32 respectively abut against two sides of the braking member shifting portion 43, so that when the dial wheel 40 rotates forward and backward, the first link 51 and the secondary braking member 32 can be rapidly applied with force, the braking members rapidly react, the unlocking and locking efficiency is improved, and idle rotation of the dial wheel 40 is avoided.

The lock shell comprises a bottom plate and side plates, wherein a lock hole for the bolt 22 to extend out is formed in each side plate, three guide pins are fixedly arranged on each bottom plate and respectively comprise a first guide pin 61, a second guide pin 62 and a third guide pin 63, a first guide groove 213 matched with the first guide pin 61 is formed in the supporting plate 21, the first guide groove 213 is formed in the translational direction of the supporting plate 21, and the length of the first guide groove 213 is matched with the displacement distance of the supporting plate 21; a second guide groove matched with the second guide pin 62 and a third guide groove matched with the third guide pin 63 are formed in the main braking piece 31, the second guide groove and the third guide groove are arranged along the translation direction of the main braking piece 31, and the length of the second guide groove and the length of the third guide groove are matched with the displacement distance of the main braking piece 31; the third guide pin 63 is also used as a rotation shaft of the sub-stopper 32 to minimize the number of assembly parts, facilitate assembly, and make the structure of the locking mechanism more compact.

Example 3

As shown in fig. 2, 7, 8 and 9, the present embodiment discloses a lock effort saving type locking mechanism, which includes a bolt assembly for performing unlocking and locking; a brake assembly for providing a braking force to latch bolt 22 to maintain it in a predetermined position; the thumb wheel 40 is rotatably arranged in the lock shell and provides moving power for the lock tongue assembly and the brake assembly; and the linkage assembly realizes the linkage of the thumb wheel 40 and the bolt assembly and the linkage of the thumb wheel 40 and the brake assembly.

The lock tongue assembly comprises a supporting plate 21 and three lock tongues 22 fixedly arranged on the supporting plate 21, wherein the number of the lock tongues 22 is three, and the supporting plate 21 drives the lock tongues 22 to move in a reciprocating translation manner between a locking position and an unlocking position; the brake assembly comprises a main brake member 31 for braking the latch bolt assembly and a secondary brake member 32 for braking the main brake member 31, wherein the main brake member 31 and the secondary brake member 32 are respectively provided with an elastic member for keeping respective braking tendency. The two braking parts are arranged and the elastic parts are respectively arranged, so that the total braking force of the lock tongue component can be divided into two component forces, the segmented force release is realized, and the locking resistance is reduced on the premise that the total braking force is unchanged and the anti-prying function of the lock body is ensured; in the unlocking process, the two brake assemblies simultaneously release the braking force to keep the unlocking resistance, and in the locking process, the auxiliary brake piece 32 and the main brake piece 31 sequentially release the braking force, so that the locking resistance is effectively reduced compared with the instant application of a large enough release force.

The first linkage member 51 is a rotating block, a first force receiving portion 511 and a force applying portion 512 are formed on the first linkage member 51, the first force receiving portion 511 and the force applying portion 512 are both arranged to protrude out of a main body of the first linkage member 51, the rotating shaft is arranged between the first force receiving portion 511 and the force applying portion 512, the first linkage member 51 can rotate around the rotating shaft, the first force receiving portion 511 is located on a positive rotation track of the braking member shifting portion 43, the force applying portion 512 can act on the main braking member 31 to enable the main braking member 31 to move from a braking position to a releasing position, the force applying portion 512 is fixedly provided with a first connecting pin 513, the first connecting pin 513 is inserted into a first pin hole 315 of the main braking member 31, and the first linkage member 51 can be matched with the main braking member 31 more reliably through the matching between the connecting pin and the pin hole. When the dial wheel 40 rotates forward, the braking member shifting portion 43 will apply power to the first force receiving portion 511 Shi Jiabo, the first force receiving portion 511 will displace to drive the first linkage member 51 to rotate, the force applying portion 512 will displace in the opposite direction, and the connecting pin will drive the main braking member 31 to displace, so that the main braking member 31 will move from the braking position to the releasing position.

The secondary braking member 32 is provided with a resistance member, in this embodiment, the resistance member is a protrusion 325 protruding from the secondary braking member 32, the protrusion 325 abuts against the force applying portion 512 of the second linking member 52, and the secondary braking member 32 provides rotation resistance for the first linking member 51 through the protrusion 325. If the main braking piece 31 needs to be displaced from the braking position to the releasing position, the first linkage piece 51 needs to rotate, when the thumb wheel 40 rotates reversely or is static and the first linkage piece 51 is not stressed, the auxiliary braking piece 32 provides braking force for the main braking piece 31 in a mode of providing rotation resistance for the first linkage piece 51, so that the bolt assembly can be stably kept at the preset position, in the locking process, the thumb wheel 40 firstly needs to pull the auxiliary braking piece 32 open, the first linkage piece 51 can recover the rotation freedom, a condition is created for the displacement of the main braking piece 31, and the segmented force leakage is realized; when the dial wheel 40 rotates forward to unlock, the first linkage piece 51 is stressed, the force application part 512 applies force to the main braking piece 31 through the connecting pin, meanwhile, the auxiliary linkage piece is also applied force through the convex block 325, and the convex block 325 is used as a linkage structure of the main braking piece 31 and the auxiliary braking piece 32, so that the main braking piece 31 and the auxiliary braking piece 32 are displaced simultaneously, and the unlocking resistance is ensured to be unchanged.

The translation directions of the main brake piece 31 and the auxiliary brake piece 32 are both perpendicular to the translation direction of the supporting plate 21, one end of the main brake piece 31 in the translation direction is connected with a first tension spring 311, and the other end is connected with a first linkage piece 51 through a first connecting pin 513; in the translation direction of the auxiliary brake member 32, one end is connected with a second tension spring 321, and the other end is formed with a stress end head 322 matched with the brake member shifting portion 43, wherein the stress end head 322 is positioned on the reverse track of the brake member shifting portion 43. In order to ensure the reliability of the braking force applied to the latch bolt assembly, the tension of the first tension spring 311 is greater than the tension of the second tension spring 321, the main braking member 31 directly acts on the latch bolt assembly, the braking force is provided through the clamping force, and compared with the auxiliary braking member 32, the latch bolt assembly is indirectly braked through the blocking force, and the braking reliability can be effectively improved through the distribution of more braking force of the main braking member 31.

The second linkage member 52 includes a rotation member 521 and a force applying arm 522, the rotation member 521 is provided with a rotation shaft, the rotation member 521 can rotate around the rotation shaft, the rotation member 521 is provided with a second force receiving portion 5211, and the second force receiving portion 5211 is located on a forward rotation track of the first bolt shifting portion 41 and a reverse rotation track of the second bolt shifting portion 42. One end of the force applying arm 522 is fixedly connected with the rotating member 521, the other end thereof corresponds to the extending direction of the supporting plate 21 and is provided with a second pin hole 5221, the supporting plate 21 is fixedly provided with a second connecting pin 212, the second connecting pin 212 is inserted into the second pin hole 5221, and the second connecting pin 212 is arranged in the middle of the supporting plate 21; to avoid jamming, the second pin hole 5221 is a kidney-shaped hole. The rotation member 521 is matched with the force applying arm 522 to convert the rotation of the thumb wheel 40 into the translation of the latch bolt assembly, and the lever principle is utilized to transmit the driving force provided by the thumb wheel 40 to the latch bolt assembly more efficiently, so that the latch bolt 22 can reach the target position only by small displacement and force application of the thumb wheel 40, and the labor saving and the efficiency are high. When thumb wheel 40 corotation, spring bolt 22 is by the translation of locking position to unlocking position, realizes unblanking, and when thumb wheel 40 reversal, spring bolt 22 is by unlocking position translation to locking position, realizes shutting.

The lock shell comprises a bottom plate and side plates, wherein a lock hole for the bolt 22 to extend out is formed in each side plate, three guide pins are fixedly arranged on each bottom plate and respectively comprise a first guide pin 61, a second guide pin 62 and a third guide pin 63, a first guide groove 213 matched with the first guide pin 61 is formed in the supporting plate 21, the first guide groove 213 is formed in the translational direction of the supporting plate 21, and the length of the first guide groove 213 is matched with the displacement distance of the supporting plate 21; a second guide groove matched with the second guide pin 62 and a third guide groove matched with the third guide pin 63 are formed in the main braking piece 31, the second guide groove and the third guide groove are arranged along the translation direction of the main braking piece 31, and the length of the second guide groove and the length of the third guide groove are matched with the displacement distance of the main braking piece 31; the auxiliary braking member 32 is provided with a fourth guide groove matched with the second guide pin 62 and a fifth guide groove matched with the third guide pin 63, the fourth guide groove and the fifth guide groove are arranged along the translation direction of the auxiliary braking member 32, and the length of the second guide groove and the length of the third guide groove are matched with the displacement distance of the auxiliary braking member 32.

The invention reasonably distributes the braking force by arranging the main braking part 31 and the auxiliary braking part 32, realizes the sectional force release in the locking process on the premise of ensuring that the total braking force is not changed and the anti-prying performance of the lock body is not influenced, and saves more labor for locking; by optimizing the position relation and the matching relation among all the parts, the unlocking resistance is unchanged so as to prevent prying, the locking resistance is reduced, and the labor is saved; by optimizing the structure and the position of each main part, the number of assembly parts is reduced as much as possible, the structure is more compact, and the assembly is simpler; the parts are matched reliably, the rotating force of the thumb wheel 40 can be effectively transmitted to the lock tongue assembly and the brake assembly, the force application of the force application part is smooth, and the stress of the force application part is reliable; the invention discloses a plurality of arrangement modes of a main braking part 31 and an auxiliary braking part 32, which can be suitable for various lock body universal parts and have strong adaptability; in practical application, a plurality of auxiliary braking members 32 can be arranged according to requirements, and the shifting part of the shifting wheel 40 is added, so that the requirement of multi-stage force relief is met.

It is to be understood that in the claims, the description of the invention, all "comprising … …" are to be understood in the open meaning, i.e. in the meaning equivalent to "comprising at least … …", and not in the closed meaning, i.e. in the meaning not to be understood as "comprising only … …". The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art should cover all the changes, modifications, additions and substitutions within the spirit of the present invention.

Claims

1. A laborsaving locking mechanism of shutting characterized by, includes:

a latch bolt assembly for performing unlocking and locking;

the braking assembly comprises a main braking member for braking the lock bolt assembly and an auxiliary braking member for braking the main braking member, and elastic members for keeping respective braking trends are respectively arranged on the main braking member and the auxiliary braking member; in the unlocking process, the main braking part and the auxiliary braking part simultaneously release braking force, and in the locking process, the auxiliary braking part and the main braking part sequentially release braking force;

the shifting wheel provides moving power for the lock tongue assembly and the brake assembly, and a first lock tongue shifting part, a second lock tongue shifting part and a brake part shifting part are arranged on the shifting wheel;

2. The locking labor-saving type locking mechanism as claimed in claim 1, wherein the bolt assembly comprises a supporting plate and a bolt fixedly arranged on the supporting plate, the supporting plate can drive the bolt to perform reciprocating translation between the locking position and the unlocking position; the main braking part can move in a reciprocating translation mode between a braking position and a releasing position, and the translation direction of the main braking part is vertical to the translation direction of the supporting plate; the support plate and the main braking part are provided with mutually matched clamping and stopping structures, when the main braking part is positioned at a braking position, the main braking part is matched with the clamping and stopping structures of the support plate, and when the main braking part is positioned at a releasing position, the main braking part is not matched with the clamping and stopping structures of the support plate.

3. The power-saving locking mechanism as claimed in claim 2, wherein the primary braking member and the secondary braking member have blocking structures which are engaged with each other, the secondary braking member can perform reciprocating translation or rotation between a blocking position and an avoiding position, when the secondary braking member is in the blocking position, the primary braking member is engaged with the blocking structure of the secondary braking member, and when the secondary braking member is in the avoiding position, the blocking structures of the primary braking member and the secondary braking member are disengaged.

4. The locking labor-saving type locking mechanism as claimed in claim 1, wherein the first lock tongue toggle part, the second lock tongue toggle part and the brake part toggle part all protrude outwards from the toggle wheel, when the toggle wheel rotates forwards, the brake part toggle part and the first linkage part have a linkage relation, the first lock tongue toggle part and the second linkage part are matched to release the braking force provided by the main brake part and the auxiliary brake part simultaneously, and the first lock tongue toggle part and the second linkage part have a linkage relation to provide an unlocking driving force for the lock tongue assembly; when the thumb wheel reverse rotation, the braking piece stirring portion acts on vice braking piece, removes the braking force that vice braking piece provided, and second spring bolt stirring portion and the linkage of second linkage provide the shutting drive power for the spring bolt subassembly to remove the braking force that main braking piece provided through the spring bolt subassembly.

5. The power-saving locking mechanism as claimed in claim 4, wherein the first linkage member is rotatably disposed on the rotating shaft, the first linkage member is provided with a first force receiving portion and a force applying portion, the first force receiving portion and the force applying portion are disposed on two sides of the rotating shaft, the first force receiving portion is at least partially located on a forward rotation track of the toggle portion of the braking member, and the force applying portion can act on the main braking member to move the main braking member from the braking position to the releasing position.

6. The power-saving latch mechanism as claimed in claim 5, wherein the secondary braking member has a blocking member, the blocking member abuts against the force applying portion of the first linking member, and the secondary braking member provides the first linking member with rotational resistance via the blocking member.

7. The power-saving locking mechanism as claimed in claim 6, wherein the end of the secondary braking member has a force-receiving end, and the force-receiving end is at least partially located on the reverse track of the toggle portion of the braking member.

8. The labor-saving locking mechanism as claimed in claim 7, wherein the second linkage member comprises a rotation member and a force applying arm, the rotation member has a rotation shaft, the rotation member can rotate around the rotation shaft, the rotation member has a second force receiving portion, and the second force receiving portion is at least partially located on a forward rotation track of the first lock tongue moving portion and a reverse rotation track of the second lock tongue moving portion.

9. The locking effort-saving type locking mechanism as claimed in claim 8, wherein one end of the force applying arm is fixedly connected to the rotating member, the other end thereof extends toward the supporting plate and is provided with a second pin hole, and the supporting plate is fixedly provided with a second connecting pin, and the second connecting pin is inserted into the second pin hole.

10. The labor-saving locking mechanism of claim 8, wherein the shifting portion of the braking member is located between the first force-receiving portion and the force-receiving end, the second force-receiving portion is located between the first bolt shifting portion and the second bolt shifting portion, a displacement gap between the shifting portion of the braking member rotating reversely to the force-receiving end is smaller than a displacement gap between the shifting portion of the second bolt rotating reversely to the second force-receiving portion, and a displacement gap between the shifting portion of the braking member rotating normally to the first force-receiving portion is smaller than a displacement gap between the shifting portion of the first bolt rotating normally to the second force-receiving portion.