CN218479669U - Back-locking lockset - Google Patents

Abstract

The utility model relates to a back lock tool to lock, spring bolt, key that locate in the lock shell including lock shell, activity change and handle change, the spring bolt can stretch out the lock shell, and the spring bolt right-hand member is equipped with connecting rod, characterized by: the handle rotating piece is provided with a swing arm which abuts against the left end of the second clamping seat, the lock shell is internally provided with a counter-locking structure which is linked with the key rotating piece, and the counter-locking structure can block the first clamping seat. The back locking lockset has simple structure, simple and convenient operation and lower manufacturing cost.

Description

Back-locking lockset

Technical Field

The utility model relates to a tool to lock field, concretely relates to anti-lock tool to lock.

Background

At present, the anti-lock tool to lock that provides on the market generally includes the lock shell, the activity is located the spring bolt in the lock shell, the anti-lock spring bolt, the key changes a piece and the handle changes a piece, and the handle changes a piece and the key changes a piece can drive the spring bolt is flexible, and the key changes a piece and can drive the anti-lock spring bolt through other structure and stretch out and draw back, and this kind of anti-lock tool to lock need be equipped with two sets of spring bolts and drive structure, and the lock shell inner structure is complicated and the operation is not simple and convenient, and manufacturing cost is higher simultaneously.

Disclosure of Invention

In view of the deficiency of the background art, the technical problem to be solved by the utility model is to provide a back lock tool to lock that simple structure, operation are used portably and manufacturing cost is lower.

Therefore, the utility model discloses an adopt following technical scheme to realize:

the utility model provides a lock is locked to contrary, changes piece and handle including lock shell, activity locating spring bolt, key in the lock shell and change the piece, the spring bolt can stretch out the lock shell, and the spring bolt right-hand member is equipped with connecting rod, characterized by: the handle rotating piece is provided with a swing arm which abuts against the left end of the second clamping seat, the lock shell is internally provided with a counter-locking structure which is linked with the key rotating piece, and the counter-locking structure can block the first clamping seat.

Furthermore, the counter lock structure comprises an L-shaped sliding block and a reset torsion spring for promoting the L-shaped sliding block to move upwards, the key rotating piece abuts against the long edge of the L-shaped sliding block, the short edge of the L-shaped sliding block is aligned with the connecting rod, the upper end of the L-shaped sliding block is provided with a connecting plate, a first upright post is arranged on the connecting plate, a second upright post which is sleeved with the reset torsion spring is arranged in the lock shell, one end of the reset torsion spring abuts against the inner wall of the lock shell, and the other end of the reset torsion spring abuts against the first upright post.

Furthermore, longitudinal sliding blocks are arranged on the short edges and the long edges of the front side and the rear side of the L-shaped sliding block, and a longitudinal strip-shaped through hole for accommodating the longitudinal sliding block to move is formed in the lock shell.

Furthermore, a third upright post for accommodating the pressure spring to sleeve is arranged on the inner wall of the right side of the lock shell, and a groove for accommodating the pressure spring to stretch into is formed in the second clamping seat.

Furthermore, circular protrusions are arranged on the front side and the rear side of the key rotating piece, a key hole is formed in each circular protrusion, the key rotating piece is oval, the right end of the key rotating piece is provided with a plane, a circular hole allowing the circular protrusions to penetrate through is formed in the lock shell, and an arc-shaped protruding block capable of blocking the swing arm is arranged in the lock shell.

Furthermore, the front side and the rear side of the first clamping seat and the second clamping seat are respectively provided with a transverse sliding block, and the lock shell is provided with a transverse strip-shaped through hole for accommodating the transverse sliding block to move.

After the technical scheme is adopted, clockwise rotation handle commentaries on classics spare makes the swing arm drive the second cassette under the normal condition, the connecting rod, first cassette and spring bolt move right, make the spring bolt stretch into in the lock shell, loosen the back spring bolt of handle, the connecting rod, first cassette and second cassette enjoy the reset under the effort of pressure spring, it resets to rotate handle anticlockwise rotation, insert the key in the key hole and clockwise rotate 90 degrees and drive the rotation of key commentaries on classics spare when needing the counter lock, the key commentaries on classics spare drives the removal of counter lock structure and blocks first cassette right-hand member, accomplish the spacing of spring bolt, the locking device is the counter lock, can't rotate the handle this moment, simple structure and open the door, the counter lock is easy and simple to handle, only need a set of spring bolt can realize the tool to lock the counter lock, manufacturing cost is lower, in addition, only need to rotate handle commentaries on classics spare through the handle when not knowing what the tool to be in the state, can rotate then be normal state, can be the unable rotation then be the counter lock state, the user need not to confirm through the tool to lock again behind the rotation handle whether the counter lock, it is more simple and convenient to use.

Drawings

The utility model discloses there is following figure:

FIG. 1 is a schematic structural view of the present invention in a normal state;

FIG. 2 is a schematic view of the internal structure of the utility model after back locking;

fig. 3 is the schematic diagram of the internal structure after unlocking.

Reference numerals: 1. a lock case; 2. a latch bolt; 3. a key rotating piece; 4. a handle rotating member; 5. a connecting rod; 6. a first card holder; 7. a second card holder; 8. compressing the spring; 9. swinging arms; 10. an L-shaped slider; 11. a return torsion spring; 12. connecting plates; 13. a first upright post; 14. a second upright post; 15. a longitudinal slide block; 16. longitudinal strip-shaped through holes; 17. a third column; 18. a circular protrusion; 19. a key hole; 20. a plane; 21. a circular hole; 22. an arc-shaped bump; 23. a transverse slide block; 24. and transverse strip-shaped through holes.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.

Referring to the above-mentioned attached drawings, the utility model provides a pair of lock is locked including lock shell 1, activity locate lock shell 1 in spring bolt 2, key change 3 and handle change 4, 2 protractile lock shells 1 of spring bolt, and 2 right-hand members of spring bolt are equipped with connecting rod 5, characterized by: a first clamping seat 6 is sleeved in the middle of the connecting rod 5, a second clamping seat 7 is arranged at the right end of the connecting rod 5, a pressure spring 8 for promoting the connecting rod 5 and the bolt 2 to move outwards is arranged between the second clamping seat 7 and the lock shell 1, a swing arm 9 for pushing against the left end of the second clamping seat 7 is arranged on the handle rotating piece 4, a counter-locking structure which is linked with the key rotating piece 3 is arranged in the lock shell 1 and can block the first clamping seat 6, the counter-locking structure comprises an L-shaped sliding block 10 and a reset torsion spring 11 for promoting the L-shaped sliding block 10 to move upwards, the key rotating piece 3 is pushed against the long edge of the L-shaped sliding block 10, the short edge of the L-shaped sliding block 10 is aligned with the connecting rod 5, a connecting plate 12 is arranged at the upper end of the L-shaped sliding block 10, a first upright post 13 is arranged on the connecting plate 12, a second upright post 14 for accommodating the reset torsion spring 11, is arranged in the lock shell 1, one end of the reset torsion spring 11 is pushed against the inner wall of the lock shell 1, and the other end is pushed against the first upright post 13, the lock comprises an L-shaped sliding block 10, and is characterized in that longitudinal sliding blocks 15 are arranged on short sides and long sides of the front side and the rear side of the L-shaped sliding block 10, longitudinal strip-shaped through holes 16 for accommodating the longitudinal sliding blocks 15 to move are formed in a lock shell 1, a third upright post 17 for accommodating a pressure spring 8 in a sleeved mode is arranged on the inner wall of the right side of the lock shell 1, a groove for accommodating the pressure spring 8 to stretch into is formed in a second clamping seat 7, circular protrusions 18 are arranged on the front side and the rear side of a key rotating part 3, key holes 19 are formed in the circular protrusions 18, the key rotating part 3 is oval, the right end of the key rotating part 3 is provided with a plane 20, the lock shell 1 is provided with a round hole 21 through which the circular protrusions 18 penetrate out, arc-shaped convex blocks 22 capable of blocking a swing arm 9 are arranged in the lock shell 1, transverse sliding blocks 23 are arranged on the front side and the rear side of the first clamping seat 6 and the second clamping seat 7, and transverse strip-shaped through holes 24 for accommodating the transverse sliding blocks 23 to move are formed in the lock shell 1.

The utility model discloses the theory of operation as follows:

in a normal state, the handle rotating piece 4 is rotated clockwise, so that the swing arm 9 drives the second clamping seat 7, the connecting rod 5, the first clamping seat 6 and the bolt 2 to move rightwards, the bolt 2 extends into the lock shell 1, the bolt 2, the connecting rod 5, the first clamping seat 6 and the second clamping seat 7 are reset under the action of the pressure spring 8 after the handle is loosened, and the handle is rotated anticlockwise to reset;

when the lock needs to be locked reversely, a key is inserted into the key hole 19 and rotates 90 degrees clockwise to drive the key rotating piece 3 to rotate 90 degrees, so that the plane 20 of the key rotating piece 3 is abutted against the long edge of the L-shaped sliding block 10, meanwhile, the key rotating piece 3 drives the L-shaped sliding block 10 to move downwards to enable the short edge to block the right end of the first clamping seat 6, the limiting of the lock tongue 2 is completed, and the lock is locked reversely.

In the embodiment, the lock can be reversely locked only by a group of lock tongues 2, the structure is simple, the door opening and reverse locking operation is simple and convenient, the manufacturing cost is lower, in addition, when the lock is not in any state, only the handle rotating piece 4 is rotated by the handle, the lock can be rotated to be in a normal state, and the lock can not be rotated to be in a reverse locking state, a user does not need to rotate the handle and then confirm whether the lock is reversely locked by the sliding door, the use is simpler and more convenient, the arrangement of the plurality of longitudinal sliding blocks 15 and the longitudinal strip-shaped through holes 16 can ensure the moving accuracy of the L-shaped sliding block 10 so as to ensure the accuracy of reverse locking, ensure simultaneously that L type slider 10 can not touch first cassette 6 under normal condition, in order to take place to interfere during the unblock, the setting of third stand 17 and recess can guarantee the removal accuracy of pressure spring 8, and then make spring bolt 2 and connecting rod 5 remove more accurately, the setting of a plurality of horizontal sliders 23 and horizontal bar through-hole 24 can guarantee the removal accuracy of connecting rod 5 and spring bolt 2, in order to ensure that spring bolt 2 can be smooth and easy stretch out or indentation lock shell 1, avoid spring bolt 2 card on lock shell 1 or spring bolt 2 can't stretch out lock shell 1, the setting of arc lug 22 can be spacing to handle commentaries on classics piece 4, avoid the handle to rotate at will, cause the puzzlement for the user.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiments by utilizing the above disclosed technical contents without departing from the technical scope of the present invention, but all the modifications, changes and changes of the technical spirit of the present invention made to the above embodiments are also within the scope of the technical solution of the present invention.

Claims (6)

1. The utility model provides a lock is locked to contrary, changes piece and handle including lock shell, activity locating spring bolt, key in the lock shell and change the piece, the spring bolt can stretch out the lock shell, and the spring bolt right-hand member is equipped with connecting rod, characterized by: the handle rotating piece is provided with a swing arm which abuts against the left end of the second clamping seat, the lock shell is internally provided with a counter-locking structure which is linked with the key rotating piece, and the counter-locking structure can block the first clamping seat.

2. A lock assembly as claimed in claim 1, wherein: the anti-lock structure comprises an L-shaped sliding block and a reset torsion spring for promoting the L-shaped sliding block to move upwards, the key rotating piece abuts against the long edge of the L-shaped sliding block, the short edge of the L-shaped sliding block is aligned with the connecting rod, a connecting plate is arranged at the upper end of the L-shaped sliding block, a first stand column is arranged on the connecting plate, a second stand column for accommodating the reset torsion spring sleeve is arranged in the lock shell, one end of the reset torsion spring abuts against the inner wall of the lock shell, and the other end of the reset torsion spring abuts against the first stand column.

3. A counter lock according to claim 2, wherein: the L-shaped sliding block is characterized in that longitudinal sliding blocks are arranged on the short sides and the long sides of the front side and the rear side of the L-shaped sliding block, and longitudinal strip-shaped through holes for accommodating the longitudinal sliding blocks are formed in the lock shell.

4. An anti-lock apparatus as claimed in claim 1, 2 or 3, wherein: the inner wall of the right side of the lock shell is provided with a third upright post sleeved with a pressure spring, and the second clamping seat is provided with a groove for allowing the pressure spring to extend into.

5. An anti-lock apparatus as claimed in claim 1, 2 or 3, wherein: the key rotates the piece front and back both sides and is equipped with circular protruding, is equipped with the key hole on the circular protruding, the key rotates the piece and is oval and key and changes a right-hand member and have the plane, the lock shell is equipped with the round hole that holds circular protruding wearing out, be equipped with the arc lug that can block the swing arm in the lock shell.

6. An anti-lock apparatus as claimed in claim 1, 2 or 3, wherein: the front side and the rear side of the first clamping seat and the second clamping seat are respectively provided with a transverse sliding block, and the lock shell is provided with a transverse strip-shaped through hole for accommodating the transverse sliding block to move.

Images