CN218061872U

CN218061872U - Lock body

Info

Publication number: CN218061872U
Application number: CN202222344606.XU
Authority: CN
Inventors: 赵宋桥; 陈俊坚
Original assignee: Zhongshan Shunchuang Intelligent Technology Co ltd
Current assignee: Zhongshan Shunchuang Intelligent Technology Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-12-16
Anticipated expiration: 2032-09-01

Abstract

The utility model relates to a lock body, which comprises a lock shell and a handle sleeve which can be rotatably arranged in the lock shell, wherein a reset elastic piece is arranged between the handle sleeve and the lock shell, and the lock shell is provided with a sleeving column; the reset elastic piece comprises a sleeve joint part and two free arms which extend outwards from the sleeve joint part; the handle sleeve is provided with two abutting parts corresponding to the two free arms, and each abutting part comprises a first abutting surface and a first abutting protrusion; the sleeve joint part is sleeved on the sleeve joint column, two free arms of the reset elastic piece are abutted against corresponding first abutting surfaces, and the handle sleeve is located at a reset position; rotate the handle sleeve, the protruding free arm that corresponds of effect of first butt makes its outwards be out of shape, and free arm makes the trend of handle sleeve keeping to the motion of reset position. The utility model has the advantages of simple structure, part interchangeability is stronger, and for other structures that can realize this lock body function equally, the cost is lower to more possess product competitiveness.

Description

Lock body

Technical Field

The utility model relates to a lock body.

Background

The existing lock body comprises a lock shell and a handle sleeve which is rotatably installed in the lock shell, the handle sleeve is in butt joint with a door handle through square steel, a front linkage piece, a rear linkage piece, a square tongue linkage piece and a latch bolt linkage piece are sleeved on the handle sleeve, when the lock is used, the front linkage piece or the rear linkage piece is close to one side in the door, the front linkage piece or the rear linkage piece rotates along with the rotation of the handle sleeve to realize the locking or unlocking of the square tongue and the latch bolt through linkage of the square tongue linkage piece and the latch bolt linkage piece, and a reset elastic piece is arranged between the handle sleeve and the lock shell to automatically reset the handle sleeve after the handle sleeve rotates.

In the structure of the existing lock body, the reset elastic piece is often a torsion spring, for the installation of the torsion spring, the lock shell needs to be provided with a socket column for the socket connection of the torsion spring, and a connecting structure is also needed to be arranged on the linkage piece for the connection of an acting arm of the torsion spring, so that the manufacturing difficulty and the manufacturing cost of the linkage piece are increased, and in order to enable the lock body to be opened left or right, a handle sleeve can be in butt joint connection with a pair of connecting sleeves, so that a plurality of reset elastic pieces are needed, because the installation positions are different, the shapes and the structures of the two reset elastic pieces can be different in order to adapt to different linkage pieces, so that the interchangeability of parts is not good, the production cost is increased, and therefore, the existing structure has the need of improvement.

Disclosure of Invention

An object of the utility model is to provide a simple structure, the stronger lock body of part interchangeability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lock body comprises a lock shell and a handle sleeve which can be rotatably arranged in the lock shell, wherein a reset elastic piece is arranged between the handle sleeve and the lock shell, and the lock shell is provided with a sleeving column; the reset elastic piece comprises a sleeve joint part and two free arms which extend outwards from the sleeve joint part; the handle sleeve is provided with two abutting parts corresponding to the two free arms, and each abutting part comprises a first abutting surface and a first abutting protrusion; the sleeve joint part is sleeved on the sleeve joint column, two free arms of the reset elastic piece are abutted against corresponding first abutting surfaces, and the handle sleeve is located at a reset position; rotate the handle sleeve, the protruding free arm that corresponds of effect of first butt makes its outwards be out of shape, and free arm makes the trend of handle sleeve keeping to the motion of reset position.

The utility model has the advantages of simple structure, part interchangeability is stronger, and the part article class still less, and production technology is because of can adopting hot punching or cold punching efficient low-cost mode production and can satisfy the requirement of product and simpler, for other structures that can realize this lock body function equally, the cost is lower to have more product competitiveness.

Drawings

Fig. 1 is a schematic three-dimensional structure of a lock body in an embodiment;

figure 2 is a schematic view of an exploded three-dimensional state structure of a lock body in the embodiment;

figure 3 is a schematic view of an exploded three-dimensional structure of a lock body in the embodiment;

figure 4 is a cross-sectional structural schematic view of one lock body of the embodiment (the cross section passes through the docking sleeve and is perpendicular to the central axis of the docking sleeve);

fig. 5 is a schematic sectional structure of one embodiment of the lock body (the section passes through the handle sleeve and is perpendicular to the central axis of the handle sleeve);

fig. 6 is an enlarged structural view at I in fig. 5 (the handle sleeve is in a reset position);

fig. 7 is an enlarged structural view of the lever handle sleeve at position I in fig. 5 (after the lever handle sleeve is rotated, the free arm corresponding to the first abutting convex action makes the lever handle sleeve deform outward, and the free arm keeps the lever handle sleeve in a state of moving to the reset position);

fig. 8 is an enlarged structural view at I in fig. 5 (when the handle sleeve is in the reset position and the free arm of the reset elastic member is not formed by symmetrical bending);

fig. 9 is an enlarged structural view of the lever handle sleeve at I in fig. 5 (a state in which the free arm corresponding to the first abutment projection deforms the lever handle sleeve outward after the lever handle sleeve rotates, and the free arm keeps the lever handle sleeve in a tendency to move to the reset position).

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the same, the same is shown by way of illustration only and not in the form of limitation; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

As shown in the accompanying drawings 1-3, the lock body comprises a lock shell 1 and a handle sleeve 2 which can be rotatably installed in the lock shell 1, wherein a reset elastic part 3 is arranged between the handle sleeve 2 and the lock shell 1, and the lock shell 1 is provided with a sleeving column 11.

Specifically, as shown in fig. 8 and 9, the elastic restoring member 3 includes a sleeve portion 31 and two free arms 32 extending outward from the sleeve portion 31; the handle sleeve 2 is provided with two abutting portions 21 corresponding to the two free arms 32, and the abutting portions 21 comprise first abutting surfaces 211 and first abutting protrusions 212; the sleeve-joint part 31 is sleeved on the sleeve-joint column 11, the two free arms 32 of the reset elastic piece 3 abut against the corresponding first abutting surfaces 211, and the handle sleeve 2 is in the reset position; rotating handle sleeve 2, the protruding 212 effect of first butt is corresponding free arm 32 makes it outwards warp, and free arm 32 makes handle sleeve 2 keep the trend to the motion of reset position.

Further, as shown in fig. 2 to 7, the abutting portion 21 further includes a second abutting surface 213 and a second abutting projection 214; the two free arms 32 are symmetrically bent to form a first bending part 321 and a second bending part 322 respectively; when the handle sleeve 2 is in the reset position, the first bending portion 321 abuts against the first abutting surface 211 corresponding to the handle sleeve 2, and the second bending portion 322 abuts against the second abutting surface 213 corresponding to the handle sleeve 2.

Specifically, the handle sleeve 2 is in a square column shape, the first abutting surface 211 of the first abutting portion 21, the second abutting surface 213 of the second abutting portion 21, and the first abutting surface 211 of the second abutting portion 21 are sequentially arranged to form four side surfaces of the handle sleeve 2, and adjacent side surfaces are connected in an arc shape in a smooth manner to correspondingly form the first abutting protrusion 212 and the second abutting protrusion 214. In other words, the first abutment projection 212 of the first abutment portion 21 connects the first abutment surface 211 of the first abutment portion 21 and the first abutment surface 211 of the second abutment portion 21 in a circular arc, and the second abutment projection 214 of the first abutment portion 21 connects the first abutment surface 211 of the first abutment portion 21 and the second abutment surface 213 of the first abutment portion 21 in a circular arc; the second abutment projection 214 of the second abutment portion 21 connects the second abutment surface 213 of the first abutment portion 21 and the second abutment surface 213 of the second abutment portion 21 in an arc; the first abutment projection 212 of the second abutment portion 21 connects the second abutment surface 213 of the second abutment portion 21 and the first abutment surface 211 of the second abutment portion 21 in an arc.

When handle sleeve 2 is close to one side in the door, preceding linkage 51 is provided with switching-over screw 511, and handle sleeve 2 and a butt joint sleeve 4 butt joint are connected, and butt joint sleeve 4 can rotate around handle sleeve 2 relatively to handle sleeve 2 of handle sleeve 2's center pin, and butt joint sleeve 4 corresponds handle sleeve 2 and is provided with two butt joint portions 21 just set the same structure reset elastic component 3. The handle sleeve 2 is sleeved with a front linkage piece 51, a dead bolt linkage piece 52 and a dead bolt linkage piece 53, and the front linkage piece 51 rotates along with the rotation of the handle sleeve 2 to link the dead bolt linkage piece 52 and the dead bolt linkage piece 53; specifically, the front linkage piece 51 is relatively and fixedly connected with the handle sleeve 2 in the circumferential direction, and the square tongue linkage piece 52 is axially and rotatably mounted on the handle sleeve 2 around the handle sleeve 2; the reversing screw 511 can abut against the latch bolt link 53 to link the latch bolt link 53, the docking sleeve 4 is provided with a rear link 54, and the rear link 54 rotates following the rotation of the docking sleeve 4 to link the latch bolt link 53. Therefore, the handle sleeve 2 can be linked with the square bolt linkage piece 52 and the oblique bolt linkage piece 53 to realize the locking or unlocking of the square bolt 61 and the oblique bolt 62, and the rotation of the butt joint sleeve 4 can only realize the locking or unlocking of the oblique bolt 62 independently.

When handle sleeve 2 kept away from indoor one side, pull down the switching-over screw 511 that sets up at linkage 51 in front and set up in the screw hole 541 of linkage 54 behind, handle sleeve 2 and a butt joint sleeve 4 butt joint, butt joint sleeve 4 can rotate handle sleeve 2 relatively round handle sleeve 2 of handle sleeve 2's center pin, and butt joint sleeve 4 corresponds the handle sleeve and is provided with two butt joint portions 21 just have set the elastic component that resets. The handle sleeve 2 is sleeved with a front linkage piece 51, a dead bolt linkage piece 52 and a latch bolt linkage piece 53, and the front linkage piece 51 rotates along with the rotation of the handle sleeve 2 to link the latch bolt linkage piece 53; the front linkage piece 51 is relatively and fixedly connected with the handle sleeve 2 in the circumferential direction, and the square tongue linkage piece 52 can be axially and rotatably arranged on the front sleeve around the handle sleeve 2; the reversing screw 511 can abut against the latch link 53 to link the latch link 53, the docking sleeve 4 is sleeved with a rear link 54, and the rear link 54 rotates along with the rotation of the docking sleeve 4 to link the square-tongue link 52 and the latch link 53. Therefore, the butt joint sleeve 4 can be linked with the dead bolt linkage piece 52 and the oblique bolt linkage piece 53 to lock or unlock the dead bolt 61 and the oblique bolt 62, and the rotation of the handle sleeve 2 can only realize the locking or unlocking of the oblique bolt 62 independently.

Therefore, even if the two elastic resetting pieces 3 are arranged at different positions, the two elastic resetting pieces 3 can be manufactured into the same parts, the structure is simple, the interchangeability is good, and the front linkage piece 51 and the rear linkage piece 54 do not need to be provided with connecting structures for connecting the action arms of the torsion springs, so that the manufacturing difficulty and the manufacturing cost of the linkage pieces are reduced, and the production cost is reduced.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

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

Claims

1. A lock body comprises a lock shell and a handle sleeve which can be rotatably arranged in the lock shell, wherein a reset elastic piece is arranged between the handle sleeve and the lock shell; the reset elastic piece comprises a sleeve joint part and two free arms which extend outwards from the sleeve joint part; the handle sleeve is provided with two abutting parts corresponding to the two free arms, and each abutting part comprises a first abutting surface and a first abutting protrusion; the sleeve joint part is sleeved on the sleeve joint column, two free arms of the reset elastic piece are abutted against corresponding first abutting surfaces, and the handle sleeve is located at a reset position; rotate the handle sleeve, the protruding free arm that corresponds of effect of first butt makes its outwards be out of shape, and free arm makes the trend of handle sleeve keeping to the motion of reset position.

2. The lock of claim 1, wherein the abutment portion further comprises a second abutment surface and a second abutment projection; the two free arms are symmetrically bent and formed to form a first bending part and a second bending part respectively; when the handle sleeve is in the reset position, the first bending portion abuts against the first abutting surface corresponding to the handle sleeve, and the second bending portion abuts against the second abutting surface corresponding to the handle sleeve.

3. The lock body of claim 2, wherein the handle sleeve is in a square column shape, the first abutting surface of the first abutting portion, the second abutting surface of the second abutting portion and the first abutting surface of the second abutting portion are sequentially arranged to form four side surfaces of the handle sleeve, and the adjacent side surfaces are connected in a smooth arc manner to correspondingly form the first abutting protrusion and the second abutting protrusion.

4. A lock according to any one of claims 1 to 3, wherein the handling sleeve is connected in abutment with a docking sleeve, the docking sleeve being rotatable relative to the handling sleeve about a central axis of the handling sleeve, the docking sleeve being provided with said two abutments in correspondence with the handling sleeve and being provided with said return spring; the handle sleeve is sleeved with a front linkage part, a square tongue linkage part and a latch bolt linkage part, and the front linkage part rotates along with the rotation of the handle sleeve to link the square tongue linkage part and the latch bolt linkage part; the butt joint sleeve is provided with a rear linkage piece, and the rear linkage piece rotates along with the rotation of the butt joint sleeve to link the latch bolt linkage piece.

5. A lock body according to any one of claims 1 to 3, wherein the handle sleeve is connected to a docking sleeve in a docking manner, the docking sleeve is rotatable relative to the handle sleeve about a central axis of the handle sleeve, the docking sleeve is provided with the two abutments corresponding to the handle sleeve and is provided with the return elastic member; the handle sleeve is sleeved with a front linkage piece, a square tongue linkage piece and a latch bolt linkage piece, and the front linkage piece rotates along with the rotation of the handle sleeve to link the latch bolt linkage piece; the butt joint sleeve is sleeved with a rear linkage piece, and the rear linkage piece rotates along with the rotation of the butt joint sleeve to link the dead bolt linkage piece and the inclined bolt linkage piece.