CN115467587B

CN115467587B - Mortise lock

Info

Publication number: CN115467587B
Application number: CN202210963146.0A
Authority: CN
Inventors: 李溪
Original assignee: Jiangmen Camax Hardware Corp ltd
Current assignee: Jiangmen Camax Hardware Corp ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2024-05-07
Anticipated expiration: 2042-08-11
Also published as: CN115467587A

Abstract

The invention discloses a mortise lock, comprising: the shell, one of the side plates of the shell is provided with a first avoiding port and a second avoiding port; the lock tongue assembly is movably arranged in the shell, extends out through the first avoidance port and can retract into the shell; the safety tongue mechanism comprises a safety tongue and a self-locking assembly, the safety tongue is movably arranged in the shell, the safety tongue extends out through the second avoiding opening, the self-locking assembly is connected with the safety tongue, the self-locking assembly is used for enabling the safety tongue to have a trend of moving towards the outside of the shell through the second avoiding opening, and the self-locking assembly is in transmission fit with the spring bolt assembly; the self-locking assembly can be driven in the process of retracting the lock tongue assembly into the shell, so that the self-locking assembly drives the safety tongue to retract into the shell.

Description

Mortise lock

Technical Field

The invention relates to the technical field of lock devices, in particular to a mortise lock.

Background

The mortise lock is a common anti-theft lock, and the reliability of the mortise lock is one of the most important indexes. The mortise lock mainly comprises a single-bolt mortise lock and a double-bolt mortise lock. In the single-bolt mortise lock, the lock has only a single bolt, the anti-theft capability is poor, and the reliability is low. In the double-bolt mortise lock, one bolt can be automatically locked after the door is closed, and the other bolt can be locked by means of a key, so that the operation is troublesome.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the mortise lock with better reliability and convenient operation.

A mortice lock according to some embodiments of the invention includes: the shell, one of the side plates of the shell is provided with a first avoiding port and a second avoiding port; the spring bolt assembly is movably arranged in the shell, extends out through the first avoidance port and can retract into the shell; the safety tongue mechanism comprises a safety tongue and a self-locking assembly, the safety tongue is movably arranged in the shell, the safety tongue extends out through the second avoiding opening, the self-locking assembly is connected with the safety tongue and is used for enabling the safety tongue to have a trend of moving towards the outside of the shell through the second avoiding opening, and the self-locking assembly is in transmission fit with the spring bolt assembly;

The self-locking assembly can be driven in the process of retracting to the inside of the shell, so that the self-locking assembly drives the safety tongue to retract to the inside of the shell.

The mortise lock provided by the embodiment of the invention has at least the following beneficial effects:

In the mortise lock, when the mortise lock is in a locking state, the lock tongue assembly extends out of the interior of the shell through the first avoidance port of the shell, the safety tongue extends out of the interior of the shell through the second avoidance port of the shell, and the self-locking assembly is used for enabling the safety tongue to have a trend of moving towards the exterior of the shell, so that the safety tongue can be kept in a door locking state, and reliability is improved. During unlocking, the lock tongue component can also enable the safety tongue to retract into the shell when retracting into the shell, so that unlocking is realized. And in the locking process, under the action of the self-locking assembly, the safety tongue also follows the spring bolt assembly to gradually extend towards the outside of the shell as the spring bolt assembly gradually extends towards the outside of the shell. Therefore, the effect of simultaneously extending and retracting the safety tongue and the lock tongue assembly can be achieved, the safety tongue is not required to be switched to a locking state by a key, and the operation is simple.

According to some embodiments of the invention, the self-locking assembly comprises a transmission member and a first reset member, one end of the transmission member is rotatably arranged on the shell, the other end of the transmission member abuts against the lock tongue assembly, and the safety tongue is in transmission fit with the transmission member;

The spring bolt assembly can drive the transmission piece to rotate along a first direction in the process of retracting to the inside of the shell, so that the transmission piece drives the safety tongue to retract to the inside of the shell, and the first reset piece is used for enabling the transmission piece to rotate along a second direction opposite to the first direction.

According to some embodiments of the invention, the housing is provided with a first mounting shaft, one end of the transmission member is rotatably sleeved on the first mounting shaft, the first reset member is a torsion spring, and the first reset member is sleeved on the first mounting shaft and abuts against the transmission member.

According to some embodiments of the invention, the safety tongue is provided with a limit groove, and the transmission piece is arranged in the limit groove in a penetrating way.

According to some embodiments of the invention, the self-locking assembly further comprises a self-locking piece, the self-locking piece is arranged on the shell, the self-locking piece is provided with a guide hole, the other end of the transmission piece is provided with a guide shaft, and the guide shaft is arranged in the guide hole in a penetrating mode.

According to some embodiments of the invention, the self-locking assembly further comprises a second reset member, which abuts the guide shaft and causes the transmission member to have a tendency to rotate in the second direction.

According to some embodiments of the invention, the safety tongue mechanism further comprises a guide plate arranged on the shell, the guide plate is provided with a guide groove, and the safety tongue is in guide fit with the guide groove.

According to some embodiments of the invention, the self-locking assembly is disposed inside the housing.

According to some embodiments of the invention, the latch assembly includes a latch movably disposed within the housing and extending through the first relief opening, and a third return member connected to the latch for causing the latch to have a tendency to extend toward the exterior of the housing.

According to some embodiments of the invention, the mortise lock further comprises a locking block assembly and a square shaft, wherein the square shaft is rotatably arranged on the shell, the square shaft is in transmission fit with the lock tongue assembly, and the locking block assembly is movably arranged on the shell;

The locking block assembly comprises a first position and a second position, when the locking block assembly is in the first position, the locking block assembly is used for limiting the square shaft to rotate, when the locking block assembly is in the second position, the locking block assembly is spaced from the square shaft, and the square shaft can rotate to drive the lock tongue assembly to retract into the shell.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of the internal structure of a mortise lock according to one embodiment of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic view of a safety tongue mechanism according to an embodiment of the present invention;

fig. 4 is a schematic view of a latch bolt assembly according to an embodiment of the invention.

Reference numerals:

100. a housing; 110. a first avoidance port; 120. a second avoidance port;

200. a latch bolt assembly; 201. a holding portion; 210. a bolt; 220. a third reset member;

300. A safety tongue mechanism; 310. a safety tongue; 311. a limit groove; 320. a self-locking assembly; 321. a transmission member; 3211. a guide shaft; 322. a first reset member; 323. a first mounting shaft; 324. a self-locking plate; 3241. a guide hole; 325. a second reset member; 326. a second mounting shaft; 327. a guide plate; 3271. a guide groove;

400. A square shaft;

500. A locking block assembly.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1, an embodiment of the present invention is directed to a mortise lock including a housing 100, a locking bolt assembly 200, and a safety bolt mechanism 300.

As shown in fig. 1 and 2, one of the side plates of the housing 100 is provided with a first escape port 110 and a second escape port 120.

Specifically, the casing 100 is of a hollow structure, one side plate of the casing 100 is provided with a first avoiding port 110 and a second avoiding port 120, the first avoiding port 110 and the second avoiding port 120 are both communicated with the inside of the casing 100, and the first avoiding port 110 is spaced from the second avoiding port 120.

Latch bolt assembly 200 is movably disposed within housing 100, and latch bolt assembly 200 extends through first relief port 110, and latch bolt assembly 200 is also retractable into the interior of housing 100.

Specifically, the latch bolt assembly 200 includes a locked state and an unlocked state. When the latch bolt assembly 200 is protruded from the inside of the housing 100 through the first escape port 110, the latch bolt assembly 200 is in a locked state; when the latch bolt assembly 200 is retracted into the interior of the housing 100, the latch bolt assembly 200 is in an unlocked state.

It should be noted that, when latch bolt assembly 200 extends from the interior of housing 100 through first relief port 110, a portion of latch bolt assembly 200 extends from the interior of housing 100 through first relief port 110, while another portion of latch bolt assembly 200 is still located in the interior of housing 100.

As shown in fig. 2 and 3, the safety tongue mechanism 300 includes a safety tongue 310 and a self-locking assembly 320, the safety tongue 310 is movably disposed in the housing 100, the safety tongue 310 extends out through the second avoiding opening 120, the self-locking assembly 320 is connected to the safety tongue 310, and the self-locking assembly 320 is used for enabling the safety tongue 310 to have a tendency to move towards the outside of the housing 100 through the second avoiding opening 120.

Specifically, the safety tongue 310 is movable with respect to the housing 100, when the safety tongue 310 protrudes from the inside of the housing 100 through the second escape opening 120, the safety tongue 310 can function as a door lock, further enhancing reliability, and the self-locking assembly 320 serves to cause the safety tongue 310 to have a tendency to move toward the outside of the housing 100, enabling the safety tongue 310 to maintain a door-locked state.

It should be noted that, the fact that the safety tongue 310 protrudes from the interior of the housing 100 through the second relief opening 120 means that a portion of the safety tongue 310 protrudes from the interior of the housing 100 through the second relief opening 120, and the other portion of the safety tongue 310 is still located inside the housing 100.

Further, the self-locking assembly 320 is in driving engagement with the latch bolt assembly 200, and the latch bolt assembly 200 can drive the self-locking assembly 320 during the process of retracting into the housing 100, so that the self-locking assembly 320 drives the safety bolt 310 to retract into the housing 100. As such, during unlocking, locking bolt assembly 200, when retracted into the interior of housing 100, also enables safety tongue 310 to be retracted into the interior of housing 100, thereby effecting unlocking.

In the mortise lock of the present invention, when the mortise lock is in the closed state, the latch bolt assembly 200 protrudes from the inside of the housing 100 through the first escape opening 110 of the housing 100, the safety tongue 310 protrudes from the inside of the housing 100 through the second escape opening 120 of the housing 100, and the self-locking assembly 320 is used to make the safety tongue 310 have a tendency to move toward the outside of the housing 100, so that the safety tongue 310 can maintain the state of locking the door, thereby improving reliability. During unlocking, the locking bolt assembly 200 can also be retracted into the interior of the housing 100 when retracted into the interior of the housing 100, thereby enabling unlocking. Also, during the closing process, under the action of the self-locking assembly 320, as the latch bolt assembly 200 gradually extends toward the exterior of the housing 100, the safety bolt 310 also follows the latch bolt assembly 200 to gradually extend toward the exterior of the housing 100. In this way, the effect of simultaneously extending and retracting the safety tongue 310 and the lock tongue assembly 200 can be achieved, the safety tongue 310 is not required to be switched to the locking state by a key, and the operation is simple.

In one embodiment, the self-locking assembly 320 is disposed inside the housing 100, the self-locking assembly 320 includes a transmission member 321 and a first reset member 322, one end of the transmission member 321 is rotatably disposed on the housing 100, the other end of the transmission member 321 abuts against the latch bolt assembly 200, and the latch bolt 310 is in driving fit with the transmission member 321; the latch bolt assembly 200 can drive the driving member 321 to rotate along a first direction during the process of retracting into the housing 100, so that the driving member 321 drives the safety tongue 310 to retract into the housing 100, and the first resetting member 322 is used for enabling the driving member 321 to rotate along a second direction opposite to the first direction.

Specifically, one end of the transmission member 321 is rotatably connected to the housing 100, so that the transmission member 321 can rotate around one end of the transmission member 321, and, because the other end of the transmission member 321 abuts against the latch assembly 200, when the latch assembly 200 is retracted into the housing 100, the transmission member 321 can be driven to rotate along the first direction (counterclockwise direction in fig. 2), and thus, the transmission member 321 can drive the safety tongue 310 to retract into the housing 100. Moreover, since the first restoring member 322 can rotate the transmission member 321 in the second direction (clockwise in fig. 2) opposite to the first direction, the safety tongue 310 can have a tendency to move toward the outside of the housing 100 through the second escape opening 120, and thus, when the latch bolt assembly 200 protrudes to the outside of the housing 100 through the first escape opening 110, the safety tongue 310 also moves toward the outside of the housing 100 through the second escape opening 120 by the first restoring member 322.

The safety tongue 310 assembly has a supporting portion 201, the other end of the transmission member 321 abuts against the supporting portion 201 and is located at the inner side of the supporting portion 201, and when the safety tongue 310 assembly is retracted into the housing 100, the supporting portion 201 is used for applying a force to the transmission member 321 so as to rotate the transmission member 321 along the first direction.

As shown in fig. 3, further, the housing 100 is provided with a first mounting shaft 323, and one end of the transmission member 321 is rotatably sleeved on the first mounting shaft 323, so that one end of the transmission member 321 can rotate relative to the housing 100.

Further, the first restoring member 322 is a torsion spring, and the first restoring member 322 is sleeved on the first mounting shaft 323 and abuts against the transmission member 321. The first mounting axle 323 is configured to provide a mounting reference for the first restoring member 322, and the first restoring member 322 is configured to provide a restoring force for the driving member 321.

In one embodiment, the safety tongue 310 is provided with a limiting groove 311, and the transmission member 321 is disposed in the limiting groove 311 in a penetrating manner. Thus, when the transmission member 321 rotates in the first direction or the second direction, the transmission member 321 can drive the safety tongue 310 to move.

Specifically, the limiting groove 311 includes a first limiting wall and a second limiting wall, the first limiting wall is located on one side of the second limiting wall, which is close to the second avoidance opening 120, the transmission member 321 is disposed through the limiting groove 311 and between the first limiting wall and the second limiting wall, when the transmission member 321 rotates along the first direction, the transmission member 321 applies a force to the safety tongue 310 through the second limiting wall, so that the safety tongue 310 retracts into the housing 100, when the transmission member 321 rotates along the second direction, the transmission member 321 applies a force to the safety tongue 310 through the first limiting wall, so that the safety tongue 310 extends out of the housing 100 through the second avoidance opening 120.

As shown in fig. 2 and 3, in one embodiment, the self-locking assembly 320 further includes a self-locking plate 324, the self-locking plate 324 is disposed on the housing 100, the self-locking plate 324 is provided with a guide hole 3241, the other end of the transmission member 321 is provided with a guide shaft 3211, and the guide shaft 3211 is disposed in the guide hole 3241 in a penetrating manner. The guide structure formed by the guide hole 3241 and the guide shaft 3211 is used for improving the motion stability and the motion precision of the transmission member 321.

Specifically, the guide hole 3241 is an arc-shaped bar hole.

Further, the self-locking assembly 320 further includes a second restoring member 325, where the second restoring member 325 abuts against the guiding shaft 3211 and makes the driving member 321 have a tendency to rotate in the second direction. The second restoring member 325 and the first restoring member 322 can jointly make the transmission member 321 have a tendency to rotate along the second direction, so that the safety tongue 310 receives a larger restoring force, and a restoring effect is ensured. And improves the reliability of the safety tongue 310 in the closed state.

As shown in fig. 3, specifically, the housing 100 is provided with a second mounting shaft 326, one end of the self-locking piece 324 is disposed on the second mounting shaft 326, the second restoring member 325 is a torsion spring, and the second restoring member 325 is sleeved on the second mounting shaft 326 and abuts against the guide shaft 3211.

As shown in fig. 2, in one embodiment, the safety tongue mechanism 300 further includes a guide plate 327 provided on the housing 100, where the guide plate 327 is provided with a guide groove 3271, and the safety tongue 310 is in guide engagement with the guide groove 3271. The guide groove 3271 serves to guide the safety tongue 310 to protrude to the outside of the housing 100 through the first escape opening 110, and the guide groove 3271 can also guide the safety tongue 310 to retract to the inside of the housing 100.

As shown in fig. 4, in one embodiment, the latch bolt assembly 200 includes a latch bolt 210 and a third restoring member 220 connected with the latch bolt 210, the latch bolt 210 is movably disposed inside the housing 100, and the latch bolt 210 protrudes through the first escape port 110, and the latch bolt 210 is also retractable into the housing 100, and the third restoring member 220 is used to cause the latch bolt 210 to have a tendency to protrude toward the outside of the housing 100.

Specifically, the third restoring member 220 is a spring, one end of the third restoring member 220 abuts against the housing 100, and the other end abuts against the latch 210.

As shown in fig. 1, the mortice lock further includes a locking block assembly 500 and a square shaft 400, the square shaft 400 is rotatably disposed on the housing 100, and the square shaft 400 is in driving engagement with the latch bolt assembly 200, the locking block assembly 500 is movably disposed on the housing 100. The locking block assembly 500 includes a first position and a second position, the locking block assembly 500 being configured to limit rotation of the square shaft 400 when the locking block assembly 500 is in the first position, the locking block assembly 500 being spaced apart from the square shaft 400 when the locking block assembly 500 is in the second position, the square shaft 400 being rotatable to drive the locking bolt assembly 200 to retract into the interior of the housing 100.

Specifically, the lock block assembly 500 can slide from the first position to the second position when the lock is unlocked by using a key, the square shaft 400 can rotate under the action of the lock handle, when the lock block assembly 500 is in the first position, the lock block assembly 500 is used for limiting the rotation of the square shaft 400, unlocking cannot be achieved, when the lock block assembly 500 is in the second position, the lock block assembly 500 is spaced apart from the square shaft 400, and the square shaft 400 can rotate under the driving of the lock handle, so that the lock tongue assembly 200 is retracted into the housing 100.

More specifically, the lock block assembly 500 is movable up and down to switch between a first position and a second position.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A mortice lock, comprising:

The shell, one of the side plates of the shell is provided with a first avoiding port and a second avoiding port;

the spring bolt assembly is movably arranged in the shell, extends out through the first avoidance port and can retract into the shell; and

The safety tongue mechanism comprises a safety tongue and a self-locking assembly, the safety tongue is movably arranged in the shell, the safety tongue extends out through the second avoidance opening, the self-locking assembly is connected with the safety tongue and is used for enabling the safety tongue to have a trend of moving towards the outside of the shell through the second avoidance opening, and the self-locking assembly is in transmission fit with the lock tongue assembly;

The self-locking assembly can be driven in the process of retracting to the inside of the shell, so that the self-locking assembly drives the safety tongue to retract to the inside of the shell;

The self-locking assembly comprises a transmission part and a first reset part, one end of the transmission part is rotatably arranged on the shell, the other end of the transmission part is propped against the lock tongue assembly, the safety tongue is in transmission fit with the transmission part, the lock tongue assembly can drive the transmission part to rotate along a first direction in the process of retracting into the shell, so that the transmission part drives the safety tongue to retract into the shell, the first reset part is used for enabling the transmission part to have a trend of rotating along a second direction opposite to the first direction, the shell is provided with a first installation shaft, one end of the transmission part is rotatably sleeved on the first installation shaft, the first reset part is a torsion spring, and the first reset part is sleeved on the first installation shaft and propped against the transmission part;

The spring bolt assembly comprises a spring bolt and a third reset piece connected with the spring bolt, the spring bolt is movably arranged in the shell, the spring bolt extends out through the first avoidance port, the spring bolt can also retract into the shell, and the third reset piece is used for enabling the spring bolt to have a trend of extending out towards the outside of the shell;

The safety tongue is provided with a limiting groove, and the transmission piece is arranged in the limiting groove in a penetrating mode;

The self-locking assembly further comprises a self-locking piece, the self-locking piece is arranged on the shell, a guide hole is formed in the self-locking piece, a guide shaft is arranged at the other end of the transmission piece, the guide shaft penetrates through the guide hole, the self-locking assembly further comprises a second resetting piece, the second resetting piece abuts against the guide shaft, and the transmission piece has a trend of rotating along the second direction.

2. The mortise lock according to claim 1 wherein the safety tongue mechanism further comprises a guide plate disposed in the housing, the guide plate being provided with a guide slot, the safety tongue being in guide engagement with the guide slot.

3. A mortice lock according to claim 1 wherein the self-locking assembly is provided within the housing.

4. The mortice lock of claim 1 further comprising a locking block assembly and a square shaft, the square shaft rotatably disposed in the housing and in driving engagement with the bolt assembly, the locking block assembly movably disposed in the housing;