TWM611240U - Adjustable latch assembly - Google Patents

Abstract

An adjustable latch assembly includes a latch bolt module and a driving module. The latch bolt module includes a latch bolt cylinder, a latch bolt movably arranged on the latch bolt cylinder along an axial direction of the latch bolt cylinder, a connecting plate connected to the latch bolt, and a linkage piece engaged with the connecting plate, wherein one end of the linkage piece abuts against the latch bolt cylinder. The driving module includes a driving plate abutting against the linkage piece, and a plurality of driving members. Each of the driving members is formed with a driving structure configured to be sleeved on a driving shaft. When the driving shaft drives one of the driving members to rotate, the driving plate is moved to drive the linkage piece to swing, such that the linkage piece drives the latch bolt to move relative to the latch bolt cylinder from an extended position to a retracted position through the connecting plate.

Description

Adjustable latch combination

This creation is related to an adjustable latch combination, especially a small angle adjustable latch combination.

Generally speaking, the latch combination of a lock is connected to a handle via a drive shaft. When the user presses or turns the handle, the handle drives the latch head of the latch assembly through the drive shaft to move to a retracted position to allow the user to open the door. In order to meet different usage requirements, conventional latch combinations have different designs. For example, in order to allow the handle to rotate at a small angle, some conventional latch combinations are equipped with a small angle drive mechanism; in order to match the different installation positions of the lock, some conventional latch combinations are equipped with an adjustable installation mechanism. However, the prior art does not have a latch combination configured with a small angle drive mechanism and an adjustable installation mechanism at the same time.

The purpose of this creation is to provide an adjustable latch combination to solve the problems of the prior art.

The creative adjustable latch assembly includes a latch module and a drive module. The latch module includes a latch cylinder, a latch head, a connecting plate, a linkage piece and a driving module. The latch head is movably arranged on the latch cylinder along the axial direction of the latch cylinder. The connecting plate is connected to the latch head. The connecting piece is clamped to the connecting plate, and one end of the connecting piece abuts against the latch cylinder. The driving module includes a driving plate against the linking piece, and a plurality of driving parts, wherein each driving part is formed with a driving shaft hole for fitting to a driving shaft, the rotating shaft of the driving shaft holes and the lock The distance between the bolt heads is different. When the driving shaft drives one of the driving parts to rotate, the driving plate is used to move along the axial direction to drive the linking piece to deflect, so that the linking piece moves the latch head through the connecting plate. Relative to the latch cylinder, it moves from an extended position to a retracted position.

In an embodiment of the invention, the drive shaft is connected to a handle. When the latch head moves from the extended position to the retracted position relative to the latch barrel, the rotation angle of the driving member is 28 degrees, and the rotation of the handle The angle is between 28 degrees and 33 degrees.

In an 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 rotation angle of the driving member is 45 degrees, and the rotation of the handle The angle 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 cylinder, and the housing is used for accommodating the driving board and the driving components.

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

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

In an embodiment of the present invention, the lock cylinder is formed with a concave structure, and one end of the linkage piece abuts against the concave structure of the lock cylinder.

Compared with the prior art, the latch module of the adjustable latch assembly of this invention has a lever mechanism, so that the user can turn the handle at a smaller angle to open the door. Furthermore, the drive module of the creative adjustable latch assembly has a plurality of drive shaft holes arranged at different positions, so that the creative adjustable latch assembly can be used with locks in different installation positions. Therefore, the creative adjustable latch combination can have both a small angle drive mechanism and an adjustable installation mechanism.

Please refer to Figures 1 to 4 at the same time. Figure 1 is a schematic diagram of the adjustable latch combination of this creation, Figure 2 is an exploded view of the adjustable latch combination of this creation, Figure 3 is a schematic diagram of the internal structure of the adjustable latch combination of this creation, and Figure 4 is this Create a schematic diagram of the adjustable latch combination and door handle combination. In order to facilitate the description of the internal structure of the adjustable latch assembly 10 of the present invention, the latch cylinder 110 in Figure 3 is represented by a dotted line. As shown in the figure, the creative adjustable latch assembly 10 includes a latch module 100 and a driving module 200. The latch module 100 includes a latch cylinder 110, a latch head 120, a connecting plate 130 and a linkage piece 140. The latch head 120 is movably disposed on the latch cylinder 110 along the axial direction of the latch cylinder 110. The latch head 120 can move 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 at the extended position P1, the latch head 120 is used to extend into a groove of a door frame (not shown) to prevent the door from being opened; when the front end of the latch head 120 is at the retracted position P2 , The latch head 120 is retracted into the latch barrel 110 so that the door can be opened. The connecting plate 130 is fixedly connected to the latch head 120 to move synchronously with the latch head 120. The connecting piece 140 is clamped to the connecting plate 130. In addition, one end of the linking piece 140 abuts against the latch cylinder 110. In this creative embodiment, one end of the linkage piece 140 is against the concave structure 112 of the latch barrel 110, but the present invention is not limited to this. In this creative embodiment, the latch barrel 110 can also be configured with other types of structures (such as ribs) to abut one end of the linkage piece 140.

On the other hand, the latch module 100 can further include a cover 150 and an elastic member 160. The cover 150 is fixedly connected to the latch cylinder 110 for installing the adjustable latch assembly 10 on a door. The elastic member 160 is used to provide an elastic force to push the latch head 120 to move toward the extended position P1.

The driving module 200 includes a housing 210, a driving board 220, and a plurality of driving parts 230 and 240 (in the present creative embodiment, the driving module 200 includes two driving parts, but the present work is not limited to this). The housing 210 is connected to the latch cylinder 110. The housing 210 is used for accommodating the driving board 220 and the driving components 230 and 240. The housing 210 includes a first cover 212 and a second cover 214 located 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 cylinder 110, and one end of the driving plate 220 abuts against the linkage piece 140. Each drive member 230, 240 is formed with a drive shaft hole 232, 242 for fitting to a drive shaft 310 (in this creative embodiment, the drive shaft hole 232 is fitted to the drive shaft 310, but this creation is not based on this Is limited). The two ends of the drive shaft 310 are respectively connected to the inner handle 320 and the outer handle 330 of the door. Since the distances between the rotating shafts of the drive shaft holes 232, 242 and the latch head 120 are different, the adjustable latch combination of this invention allows the drive shaft 310 to be selectively fitted to one of the drive shaft holes 232, 242 , To correspond to different lock installation positions, for example, to correspond to different handle installation holes on the 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 drive shaft holes 232 and 242 of the drive members 230 and 240 to allow the drive shaft 310 to pass through.

Please refer to Figure 5, and also refer to Figures 1 to 4. Figure 5 is a schematic diagram of the adjustable latch assembly of this creation before and after being driven by the drive shaft. In order to facilitate the description of the corresponding positions of the components of the adjustable latch assembly 10 of the invention, the positions of the driving board 220 and the driving parts 230, 240 and other related components in Figure 5 are shown separately. When the user rotates the inner handle 320 or the outer handle 330, the driving shaft 310 will drive the driving members 230 and 240 fitted with it to rotate. When the driving members 230, 240 rotate, the driving members 230, 240 will push against the pushing structures 222a, 222b of the driving plate 220 to move the driving plate 220 along the axial direction of the latch cylinder 110 and away from the latch cylinder 110 . For example, when the drive shaft 310 drives the drive member 230 to rotate, the drive member 230 will push against the pushing structure 222a of the drive plate 220 to move the drive plate 220 in the axial direction of the latch cylinder 110; when the drive member 240 When rotating, the driving member 240 will push against the pushed structure 222 b of the driving plate 220 to move the driving plate 220 along the axial direction of the latch cylinder 110. When the drive plate 220 moves along the axial direction of the latch barrel 110, one end of the drive plate 220 will pull the linkage piece 140, and the linkage piece 140 is deflected using the concave structure 112 of the latch barrel 110 as a fulcrum. When the linkage piece 140 deflects, the linkage piece 140 will pull the connecting plate 130 along the axial direction of the latch cylinder 110 to further move the latch head 120 relative to the latch cylinder 110 from the extended position P1 to the retracted position P2. In this way, the user can open the door.

According to the above configuration, the present creation utilizes the lever mechanism between the drive plate 220, the linkage plate 140 and the connecting plate 130 to move the latch head 120, and the moving distance of the drive plate 220 is smaller than the moving distance of the connecting plate 130. Therefore, the adjustable latch assembly 10 of the present invention allows the user to turn the inner handle 320 or the outer handle 330 at a relatively small angle to open the door. In an embodiment of the present creation, when the latch head 120 moves from the extended position P1 to the retracted position P2 relative to the latch barrel 110, the rotation angle of the driving members 230, 240 is 28 degrees, and the rotation angle of the handles 320, 330 is due to The component fit tolerance is between 28 degrees and 33 degrees; in another embodiment of the present creation, when the latch head 120 moves from the extended position P1 to the retracted position P2 relative to the latch cylinder 110, the driving members 230, 240 The rotation angle is 45 degrees, and the rotation angles of the handles 320 and 330 are between 45 degrees and 50 degrees due to the component matching tolerance, but the present invention is not limited to this.

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 will rotate to the initial position. Furthermore, since the elastic member 160 abuts against the latch head 120 and the housing 210, the elastic force of the elastic member 160 will push 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 bolt 170 is used to prevent the bolt head 120 from being moved by an external tool and retracted to the retracted position P2. For example, when the anti-theft bolt 170 is pressed down, the bolt head 120 cannot be retracted to the retracted position P2. The operating principle of the anti-theft bolt 170 is a conventional technology, so it will not be described again. The anti-theft bolt spring 180 is used to provide elastic force to the anti-theft bolt 170 so that the anti-theft bolt 170 can return to the initial position.

Compared with the prior art, the latch module of the adjustable latch assembly of this invention has a lever mechanism, so that the user can turn the handle at a smaller angle to open the door. Furthermore, the drive module of the creative adjustable latch assembly has a plurality of drive shaft holes arranged at different positions, so that the creative adjustable latch assembly can be used with locks in different installation positions. Therefore, the creative adjustable latch combination can have both a small angle drive mechanism and an adjustable installation mechanism.

The above descriptions are only the preferred embodiments of this creation, and all equal changes and modifications made in accordance with the scope of the patent application for this creation should fall within the scope of this creation.

10: Adjustable latch combination 100: Latch module 110: Latch cylinder 112: Concave structure 120: Latch head 130: connecting plate 140: Linked Film 150: cover 160: Elastic 170: anti-theft bolt 180: anti-theft latch spring 200: drive module 210: Shell 212: first cover 213: open hole 214: second cover 215: Hole 220: driver board 222a, 222b: Pushed structure 230: drive 232: Drive shaft hole 240: drive 242: Drive shaft hole 310: drive shaft 320: inner handle 330: Outer Handle P1: extended position P2: Retracted position

Figure 1 is a schematic diagram of the adjustable latch assembly of this creation. Figure 2 is an exploded view of the adjustable latch combination of this creation. Figure 3 is a partial schematic diagram of the adjustable latch assembly of this creation. Figure 4 is a schematic diagram of the combination of the adjustable latch combination and the door handle of this creation. Figure 5 is a schematic diagram of the adjustable latch assembly of this creation before and after being driven by the drive shaft.

10: Adjustable latch combination

100: Latch module

110: Latch cylinder

112: Concave structure

120: Latch head

130: connecting plate

140: Linked Film

150: cover

160: Elastic

170: anti-theft bolt

180: anti-theft latch spring

200: drive module

210: shell

212: first cover

214: second cover

220: driver board

222a, 222b: Pushed structure

230: drive

240: drive

P1: extended position

P2: Retracted position

Claims (7)

An adjustable latch combination, including: A latch module, including: A latch cylinder; A latch head, movably arranged on the latch cylinder along the axial direction of the latch cylinder; A connecting plate connected to the bolt head; and A linking piece is clamped to the connecting plate, wherein one end of the linking piece abuts against the latch cylinder; and A drive module, including: A driving plate abuts against the connecting piece; and A plurality of driving parts, each of which is formed with a driving shaft hole for fitting to a driving shaft, and the distance between the rotating shaft of the driving shaft holes and the latch head is different; When the drive shaft drives one of the drive members to rotate, the drive plate is moved to drive the linkage plate to deflect, so that the linkage plate moves the latch head relative to the latch barrel via the connecting plate. An extended position moves to a retracted position. The adjustable latch assembly according to claim 1, wherein the driving 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 rotation angle of the driving member is 28 Degree, the rotation angle of the handle is between 28 degrees and 33 degrees. The adjustable latch assembly according to claim 1, wherein the driving 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 rotation angle of the driving member is 45 Degree, the rotation angle of the handle is between 45 degrees and 50 degrees. The adjustable latch assembly according to claim 1, wherein the driving module further includes a housing connected to the latch cylinder, and the housing is used for accommodating the driving board and the driving components. The adjustable latch assembly according to claim 4, wherein the housing includes a first cover plate and a second cover plate located on opposite sides of the housing, and the first cover plate and the second cover plate form There are openings corresponding to the driving shaft holes of the driving parts. According to claim 4, the adjustable latch assembly further includes an elastic member against the latch head and the housing to push the latch head to move toward the extended position. The adjustable latch assembly according to claim 1, wherein the latch cylinder is formed with a concave structure, and one end of the linkage piece abuts against the concave structure of the latch cylinder.

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