CN214330263U

CN214330263U - Adjustable lock latch combination

Info

Publication number: CN214330263U
Application number: CN202120070339.4U
Authority: CN
Inventors: 黄昭铭
Original assignee: Taiwan Fu Hsing Industrial Co Ltd
Current assignee: Taiwan Fu Hsing Industrial Co Ltd
Priority date: 2020-12-04
Filing date: 2021-01-12
Publication date: 2021-10-01
Anticipated expiration: 2031-01-12
Also published as: TWM611240U

Abstract

The adjustable latch assembly includes a latch module and a driving module. The latch module comprises a latch barrel, a latch head is movably arranged on the latch barrel along the axial direction of the latch barrel, a connecting plate is connected with the latch head, and a linkage plate is clamped on the connecting plate, wherein one end of the linkage plate is abutted against the latch barrel. The driving module comprises a driving plate which is abutted against the linkage plate and a plurality of driving pieces, wherein each driving piece is provided with a driving shaft hole for being sleeved on a driving shaft. When the driving shaft drives one of the driving pieces to rotate, the driving plate is moved to drive the linkage plate to deflect, so that the linkage plate moves the latch head from an extending position to a retracting position relative to the latch barrel through the connecting plate.

Description

Adjustable lock latch combination

Technical Field

The present invention relates to an adjustable latch assembly, and more particularly to a small angle adjustable latch assembly.

Background

Generally, the latch assembly of the lock is connected to a handle via a drive shaft. When the user presses or rotates the handle, the handle drives the latch head of the latch assembly to move to a retracted position via the drive shaft to allow the user to open the door. In order to meet different requirements of use, different designs of the lock bolt combination are known. For example, some known latch combinations are configured with a small angle drive mechanism in order to allow for a small degree of handle rotation; some known latch combinations are provided with an adjustable mounting mechanism in order to accommodate different mounting positions of the lock. However, the prior art does not have a latch assembly that simultaneously configures a small angle drive mechanism and an adjustable mounting mechanism.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable hasp combination to solve prior art's problem.

The utility model discloses hasp combination with adjustable contains a hasp module and a drive module. The latch module includes a latch barrel, a latch head, a connecting plate, a link plate and a driving module. The latch head is movably disposed on the latch barrel along an axial direction of the latch barrel. The connecting plate is connected to the latch head. The linkage plate is clamped on the connecting plate, wherein one end of the linkage plate is abutted against the latch barrel. The driving module comprises a driving plate which is abutted against the linkage plate and a plurality of driving pieces, wherein each driving piece is provided with a driving shaft hole for being sleeved to a driving shaft, and the distances between the rotating shafts of the driving shaft holes and the latch head are different. When the driving shaft drives one of the driving parts to rotate, the driving plate is used for moving along the axial direction to drive the linkage plate to deflect, so that the linkage plate moves the latch head from an extending position to a retracting position relative to the latch barrel through the connecting plate.

In one embodiment of the present invention, the drive shaft is connected to a handle, and when the latch head moves from the extended position to the retracted position relative to the latch barrel, the rotational angle of the driving member is 28 degrees and the rotational angle of the handle is between 28 degrees and 33 degrees.

In one embodiment of the present invention, the drive shaft is connected to a handle, and when the latch head moves from the extended position to the retracted position relative to the latch barrel, the rotational angle of the driving member is 45 degrees and the rotational angle of the handle is between 45 degrees and 50 degrees.

In an embodiment of the present invention, the driving module further includes a housing connected to the latch barrel, the housing being configured to accommodate the driving plate and the driving members.

In an embodiment of the present invention, the housing includes a first cover plate and a second cover plate located at opposite sides of the housing, and the first cover plate and the second cover plate are formed with driving shaft holes having openings corresponding to the driving members.

In one embodiment of the present invention, the adjustable latch assembly further includes an elastic member abutting against the latch head and the housing for urging the latch head to move toward the extended position.

In an embodiment of the present invention, the latch barrel is formed with an indent structure, and one end of the linking plate is abutted against the indent structure of the latch barrel.

Compared with the prior art, the latch module of the adjustable latch assembly of the present invention has a lever mechanism to allow the user to rotate the handle by a small angle to open the door. Furthermore, the utility model discloses the drive module of hasp combination with adjustable has a plurality of drive shaft holes that set up in the different positions, in order to let the utility model discloses hasp combination with adjustable can arrange the tool to lock of different mounted positions. Therefore, the adjustable lock latch combination of the utility model can simultaneously have a small-angle driving mechanism and an adjustable installation mechanism.

Drawings

FIG. 1 is a schematic view of an adjustable latch assembly according to the present invention;

FIG. 2 is an exploded view of the adjustable latch assembly of the present invention;

FIG. 3 is a partial schematic view of the adjustable latch assembly of the present invention;

FIG. 4 is a schematic view of the adjustable latch assembly and door handle combination of the present invention;

fig. 5 is a schematic view of the adjustable latch assembly of the present invention before and after being driven by the drive shaft.

[ notation ] to show

10 adjustable lock bolt combination

100 latch module

110 lock cylinder

112 concave structure

120 bolt head

130 connecting plate

140 linkage sheet

150 cover plate

160 elastic member

170 theft-proof bolt

180 theft-proof bolt spring

200 driving module

210 casing

212 first cover plate

213 open pore

214 second cover plate

215 open pores

220 driving board

222a, 222b pushed structure

230 driving piece

232 driving axle hole

240 driving member

242 drive shaft hole

310 drive shaft

320 inner handle

330 outer handle

P1 extended position

P2 contracted position

Detailed Description

Please refer to fig. 1 to fig. 4. Fig. 1 is a schematic view of an adjustable latch assembly of the present invention, fig. 2 is an exploded view of the adjustable latch assembly of the present invention, fig. 3 is a schematic view of an internal structure of the adjustable latch assembly of the present invention, and fig. 4 is a schematic view of the adjustable latch assembly of the present invention combined with a door handle. To facilitate the explanation of the internal structure of the adjustable latch assembly 10 of the present invention, the latch barrel 110 is shown in phantom in fig. 3. As shown, the adjustable latch assembly 10 of the present invention includes a latch module 100 and a driving module 200. The latch module 100 includes a latch barrel 110, a latch head 120, a linkage plate 130, and a linkage plate 140. The latch head 120 is movably disposed on the lock cylinder 110 in the axial direction of the lock cylinder 110. The latch head 120 is movable relative to the latch barrel 110 between an extended position P1 and a retracted position P2. When the front end of the latch head 120 is located at the extended position P1, the latch head 120 is used to extend into a groove (not shown) of a door frame to prevent the door from being opened; when the front end of the latch head 120 is in the retracted position P2, the latch head 120 retracts into the latch barrel 110 to allow the door to be opened. The connecting plate 130 is fixedly coupled to the latch head 120 to move in synchronization with the latch head 120. The coupling sheet 140 is clamped on the connecting plate 130. In addition, one end of the linking plate 140 is against the lock cylinder 110. In the embodiment of the present invention, one end of the linking plate 140 is abutted against the concave structure 112 of the latch barrel 110, but the present invention is not limited thereto. In the present embodiment, the latch barrel 110 can also be configured with other types of structures (e.g., ribs) to abut against one end of the linkage plate 140.

On the other hand, the latch module 100 may further include a cover plate 150 and an elastic member 160. The cover plate 150 is fixedly connected to the latch barrel 110 for mounting the adjustable latch assembly 10 to a door. The resilient member 160 is used to provide a resilient force to urge the latch head 120 to move toward the extended position P1.

The driving module 200 includes a housing 210, a driving plate 220, and a plurality of driving members 230, 240 (in the embodiment of the present invention, the driving module 200 includes two driving members, but the present invention is not limited thereto). The housing 210 is connected to the latch barrel 110. The housing 210 is used for accommodating the driving plate 220 and the driving

members

230 and 240. The housing 210 includes a first cover 212 and a second cover 214 disposed on opposite sides of the housing 210. The driving plate 220 is movably disposed on the housing 210 along the axial direction of the latch barrel 110, and one end of the driving plate 220 abuts against the linking plate 140. Each driving

member

230, 240 is formed with a driving

shaft hole

232, 242 for engaging with a driving shaft 310 (in the embodiment of the present invention, the driving shaft hole 232 is engaged with the driving shaft 310, but the present invention is not limited thereto). The driving shaft 310 is connected at both ends thereof to the inner handle 320 and the outer handle 330 of the door, respectively. Because of the different distances between the axes of rotation of the

drive shaft apertures

232, 242 and the latch head 120, the adjustable latch assembly of the present invention can allow the drive shaft 310 to be selectively engaged with one of the

drive shaft apertures

232, 242 to correspond to different latch mounting locations, such as different handle mounting apertures on a door. On the other hand, the first cover plate 212 and the second cover plate 214 are respectively formed with

openings

213 and 215 corresponding to the driving

shaft holes

232 and 242 of the driving

members

230 and 240, so as to allow the driving shaft 310 to pass through.

Please refer to fig. 5, and also refer to fig. 1 to 4. Fig. 5 is a schematic view of the adjustable latch assembly of the present invention before and after being driven by the drive shaft. For convenience of illustration of the corresponding positions of the components of the adjustable deadbolt assembly 10 of the present invention, the positions of the associated components, such as the drive plate 220 and the

drive members

230, 240, are shown separately in fig. 5. When the user rotates the inner handle 320 or the outer handle 330, the driving shaft 310 drives the driving

members

230, 240 engaged therewith to rotate. When the driving

members

230, 240 rotate, the driving

members

230, 240 push against the pushed

structures

222a, 222b of the driving plate 220 to move the driving plate 220 in the axial direction of the latch barrel 110 and away from the latch barrel 110. For example, when the driving shaft 310 drives the driving member 230 to rotate, the driving member 230 pushes against the pushed structure 222a of the driving plate 220 to move the driving plate 220 along the axial direction of the latch barrel 110; when the driving member 240 rotates, the driving member 240 pushes against the pushed structure 222b of the driving plate 220 to move the driving plate 220 along the axial direction of the latch barrel 110. When the driving plate 220 moves along the axial direction of the latch barrel 110, one end of the driving plate 220 pulls the interlocking plate 140, so that the interlocking plate 140 swings around the concave structure 112 of the latch barrel 110 as a fulcrum. When the linkage plate 140 deflects, the linkage plate 140 pulls the connection plate 130 in the axial direction of the lock cylinder 110 to further move the latch head 120 relative to the lock cylinder 110 from the extended position P1 to the retracted position P2. So that the user can open the door.

According to the above configuration, the present invention utilizes the lever mechanism between the driving plate 220, the linkage plate 140 and the connecting plate 130 to move the latch head 120, and the moving distance of the driving plate 220 is less than the moving distance of the connecting plate 130. The adjustable latch assembly 10 of the present invention thus allows a user to rotate the inner handle 320 or the outer handle 330 by a small angle to open the door. In one embodiment of the present invention, when the latch head 120 moves relative to the latch barrel 110 from the extended position P1 to the retracted position P2, the rotational angle of the driving

members

230, 240 is 28 degrees, while the rotational angle of the

handles

320, 330 is between 28 degrees and 33 degrees due to component tolerances; in another embodiment of the present invention, when the latch head 120 moves from the extended position P1 to the retracted position P2 relative to the latch barrel 110, the rotational angle of the driving

members

230, 240 is 45 degrees, and the rotational angle of the

handles

320, 330 is between 45 degrees and 50 degrees due to the component fitting tolerance, but the present invention is not limited thereto.

On the other hand, when the user releases the inner handle 320 or the outer handle 330, the inner handle 320 or the outer handle 330 is rotated to the initial position. Furthermore, since the elastic element 160 is abutted against the latch head 120 and the housing 210, the elastic force of the elastic element 160 pushes the latch head 120 to move the latch head 120 from the retracted position P2 to the extended position P1.

In addition, the latch module 100 may further include an anti-theft latch 170 and an anti-theft latch spring 180. The anti-theft latch 170 is used to prevent the latch head 120 from being moved by an external tool to retract to the retracted position P2. For example, when the anti-theft bolt 170 is pressed, the bolt head 120 cannot be retracted to the retracted position P2. The operation of the deadbolt 170 is well known and will not be described. The latch spring 180 is used to provide a spring force to the latch 170 so that the latch 170 can return to the initial position.

The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims

1. An adjustable latch assembly, comprising:

a latch module comprising: a latch barrel; a latch head movably disposed on the latch barrel in an axial direction of the latch barrel; a connecting plate connected to the latch head; and a linkage plate clamped on the connecting plate, wherein one end of the linkage plate is abutted against the latch cylinder; and

a driver module, comprising: a driving plate, which is pressed against the linkage plate; and a plurality of driving members, wherein each driving member is provided with a driving shaft hole for being sleeved on a driving shaft, and the distances between a rotating shaft of the driving shaft hole and the latch head are different;

when the driving shaft drives one of the driving pieces to rotate, the driving plate is moved to drive the linkage plate to deflect, so that the linkage plate moves the latch head from an extending position to a retracting position relative to the latch barrel through the connecting plate.

2. The adjustable latch assembly of claim 1, wherein the drive shaft is coupled to a handle, the drive member being rotated through an angle of 28 degrees and the handle being rotated through an angle of between 28 degrees and 33 degrees when the latch head is moved relative to the latch barrel from the extended position to the retracted position.

3. The adjustable latch assembly of claim 1, wherein the drive shaft is coupled to a handle, the drive member being angled at 45 degrees and the handle being angled at between 45 and 50 degrees when the latch head is moved relative to the latch barrel from the extended position to the retracted position.

4. The adjustable deadbolt assembly of claim 1, wherein the drive module further comprises a housing coupled to the deadbolt barrel, the housing configured to receive the drive plate and the plurality of drive members.

5. The adjustable latch assembly of claim 4, wherein the housing includes a first cover plate and a second cover plate disposed on opposite sides of the housing, the first cover plate and the second cover plate defining openings corresponding to the drive shaft holes of the plurality of driving members.

6. The adjustable latch assembly of claim 4, further comprising a resilient member abutting the latch head and the housing for urging the latch head toward the extended position.

7. The adjustable latch assembly of claim 1, wherein the latch barrel defines a recessed feature, and the linkage plate has an end that abuts the recessed feature of the latch barrel.