Suitable for super-slim door leaf mortise lock

Abstract

This utility model discloses a leaf mortise lock suitable for ultra-thin doors, including a lock shell, a lock cylinder, a mortise, a locking element, and a leaf assembly. The lock shell has a receiving hole with a locking groove. The lock cylinder has a receiving groove. The mortise passes through the lock cylinder and has a positioning groove. The locking element causes the mortise and lock shell to rotate synchronously, allowing the leaf assembly to move to the unlocked position. When the receiving groove and the locking groove are connected, the positioning groove is located on one side of the locking groove and is connected to the locking groove, locking the lock cylinder when the leaf assembly moves away from the unlocked position. The locking element releases the lock cylinder when the leaf assembly moves to the unlocked position. This utility model, by configuring the mortise to pass through the lock cylinder and having a positioning groove that is at least partially aligned with the receiving groove, and by positioning the positioning groove being located on one side of the locking groove and connected to the locking groove when the receiving groove and the locking groove are connected, allows the locking element to insert into the locking groove to restrict the rotation of the lock cylinder when the leaf assembly moves away from the unlocked position. The relative positions of the mortise, locking element, and leaf assembly are compact, shortening the length of the lock cylinder and allowing the lock to be adapted to thinner door bodies.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a leaf mortise lock suitable for ultra-thin doors. Background Technology

[0002] A lock is a device installed on a door to provide security. Existing leaf locks include a lock case, lock cylinder, mortise lock, locking element, and leaf assembly. The lock cylinder is located inside the lock case and can rotate relative to it. The mortise lock, leaf assembly, and locking element are located inside the lock cylinder. The leaf assembly can move to the unlocked position relative to the lock cylinder. The locking element restricts the rotation of the lock cylinder when the leaf assembly moves out of the unlocked position and releases the lock cylinder when the leaf assembly moves to the unlocked position. The mortise lock is located on one side of the leaf assembly and rotates synchronously with the lock cylinder, thereby actuating the bolt to lock and unlock the lock. Because the mortise lock is located on one side of the leaf assembly and is independent of the locking element and leaf assembly, and the mortise lock, leaf assembly, and locking element are distributed on the lock cylinder, the lock case and lock cylinder are relatively long. This makes it impossible to install the lock on thin door frames, such as glass doors. Utility Model Content

[0003] The purpose of this utility model is to provide a blade mortise lock suitable for ultra-thin doors, so as to solve the problem that the mortise, blade assembly and locking parts of the existing blade lock are scattered on the lock cylinder, resulting in the lock shell and lock cylinder being too long to be assembled on thin door bodies.

[0004] This utility model is achieved through the following technical solution:

[0005] A leaf mortise lock suitable for ultra-thin doors includes a lock housing, a lock cylinder, a mortise, a locking element, and a leaf assembly. The lock housing has a receiving hole for accommodating the lock cylinder, and the wall of the receiving hole has a locking groove. The outer wall of the lock cylinder has a receiving groove. The lock cylinder can rotate relative to the lock housing to communicate with the receiving groove and the locking groove. The mortise passes through the lock cylinder and has a positioning groove that is at least partially facing the receiving groove. The locking element is respectively accommodated in the receiving groove and the positioning groove, allowing the mortise to rotate synchronously with the lock housing. The leaf assembly is located on the side of the locking element opposite to the positioning groove and can move to the unlocked position relative to the lock cylinder. When the receiving groove and the locking groove are in communication, the positioning groove is located on one side of the locking groove and communicates with the locking groove. When the leaf assembly moves away from the unlocked position, the locking element can be inserted into the locking groove to restrict the rotation of the lock cylinder. When the leaf assembly moves to the unlocked position, the locking element can move away from the locking groove to release the lock cylinder.

[0006] Furthermore, the lock housing also has a clearance hole that extends circumferentially around the receiving hole and communicates with the receiving hole. The clearance hole is located in the middle of the receiving hole and divides the receiving hole into a front half and a rear half. The locking groove is formed on the hole wall of the front half or the rear half. The lever has a connecting ring and a lever arm. The connecting ring has a connecting hole through which the lock cylinder passes. The connecting hole wall is provided with the positioning groove. The connecting ring is accommodated in the clearance hole. The lever arm is located on one side of the connecting ring.

[0007] Furthermore, the locking member has an unlocking part, a first locking part, and a second locking part. The unlocking part is accommodated in the accommodating groove and extends axially along the accommodating groove. The first locking part and the second locking part are disposed on the side of the unlocking part opposite to the blade assembly and are spaced apart in the length direction of the unlocking part. The second locking part is inserted into the positioning groove. When the blade assembly moves away from the unlocking position, the first locking part inserts into the locking groove to restrict the rotation of the lock cylinder, and moves away from the locking groove to release the lock cylinder when the blade assembly moves to the unlocking position.

[0008] Furthermore, the distance between the bottom of the positioning groove and the outer wall of the lock cylinder is defined as D1, the distance between the bottom of the locking groove and the outer wall of the lock cylinder is defined as D2, D1 is greater than D2, the distance between the outer side of the first locking part and the unlocking part is defined as H1, and the distance between the outer side of the second locking part and the unlocking part is defined as H2, H2 is greater than H1.

[0009] Furthermore, the blade assembly includes a plurality of blades disposed on the lock cylinder, each blade being movable relative to the lock cylinder to an unlock position, the plurality of blades forming an unlocking groove when they are moved to the unlock position, the unlocking part being able to insert into the unlocking groove when the plurality of blades are moved to the unlock position, causing the first locking part to move away from the locking groove and release the lock cylinder, the unlocking part moving away from the unlocking groove when at least one blade moves away from the unlock position, causing the first locking part to insert into the locking groove and restrict the rotation of the lock cylinder.

[0010] Furthermore, the unlocking groove, the receiving groove, and the locking groove are arranged sequentially from the inside to the outside in the radial direction of the receiving hole.

[0011] Furthermore, the unlocking part, the first locking part, and the second locking part are integrally formed.

[0012] Furthermore, the lock cylinder is provided with a first elastic element, which abuts against the first locking part and the lock cylinder respectively to drive the first locking part to move into the locking groove.

[0013] Furthermore, the lock cylinder is provided with a second elastic element, which abuts against the second locking part and the lock cylinder respectively to move the second locking part toward the positioning groove.

[0014] Furthermore, the lock cylinder is provided with a plurality of third elastic elements, each of which corresponds to a plurality of blades. The third elastic elements abut against the lock cylinder and the corresponding blades respectively to drive the corresponding blades to move away from the unlocking position.

[0015] The advantage of this technical solution is that by configuring the mortise to pass through the lock cylinder and having a positioning groove that is at least partially aligned with the receiving groove, and the positioning groove being located on one side of the locking groove and connected to the locking groove when the receiving groove and the locking groove are connected, the locking member can be inserted into the locking groove to restrict the rotation of the lock cylinder when the blade assembly moves away from the unlocking position. The relative positions of the mortise, locking member and blade assembly are compact, effectively shortening the length of the lock cylinder, allowing the lock to be adapted to thinner door bodies, and at the same time, realizing the locking and unlocking of the lock. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view of a blade mortise lock adapted for use with ultra-thin doors according to an embodiment of this utility model;

[0019] Figure 2 This is a side view of a blade mortise lock adapted for use with ultra-thin doors according to an embodiment of this utility model;

[0020] Figure 3 yes Figure 2 A cross-sectional view at point AA (the blade assembly has moved away from the unlocking position, and the locking part has been inserted into the locking groove);

[0021] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0022] Figure 5 This is an exploded view of a blade mortise lock adapted for ultra-thin doors according to an embodiment of this utility model;

[0023] Figure 6 yes Figure 5 A magnified view of a section at point C;

[0024] Figure 7 yes Figure 2 Cross-sectional view at point AA (the blade assembly is moved to the unlocked position, and the locking element is moved away from the locking groove);

[0025] Figure 8 yes Figure 7 A magnified view of a section at point D. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example: Figure 1-8 As shown, the leaf mortise lock for ultra-thin doors includes a lock housing 1, a lock cylinder 2, a mortise 3, locking elements 4, and a leaf assembly 5. The lock housing 1 has a receiving hole 101 for accommodating the lock cylinder 2, and the wall of the receiving hole 101 is provided with a locking groove 102. The outer wall of the lock cylinder 2 is provided with a receiving groove 201. The lock cylinder 2 can rotate relative to the lock housing 1 to make the receiving groove 201 communicate with the locking groove 102. The mortise 3 passes through the lock cylinder 2 and has a positioning groove 301 that is at least partially aligned with the receiving groove 201. The locking elements 4 are respectively accommodated in the receiving grooves 201. The positioning groove 301 causes the jack 3 to rotate synchronously with the lock housing 1. The blade assembly 5 is located on the side of the locking member 4 opposite to the positioning groove 301 and can move relative to the lock cylinder 2 to the unlock position. When the receiving groove 201 is connected to the locking groove 102, the positioning groove 301 is located on the side of the locking groove 102 and is connected to the locking groove 102. When the blade assembly 5 moves away from the unlock position, the locking member 4 can be inserted into the locking groove 102 to restrict the rotation of the lock cylinder 2. When the blade assembly 5 moves to the unlock position, the locking member 4 can move away from the locking groove 102 to release the lock cylinder 2. This embodiment provides a blade mortise lock suitable for ultra-thin doors, solving the problem that the existing blade locks have the mortise, blade assembly, and locking element scattered on the lock cylinder, resulting in a long lock shell and lock cylinder that cannot be assembled on thin door bodies. The main solution is to configure the mortise 3 as a positioning groove 301 that passes through the lock cylinder 2 and has at least a partial facing of the receiving groove 201. When the receiving groove 201 is connected to the locking groove 102, the positioning groove 301 is located on one side of the locking groove 102 and is connected to the locking groove 102. This allows the locking element 4 to be inserted into the locking groove 102 to restrict the rotation of the lock cylinder 2 when the blade assembly 5 moves away from the unlocking position. The relative positions of the mortise 3, locking element 4, and blade assembly 5 are compact, effectively shortening the length of the lock cylinder 2, allowing the lock to be adapted to thin door bodies, and simultaneously enabling the locking and unlocking of the lock.

[0028] In this embodiment of the present invention, the lock housing 1 also has a clearance hole 103. The receiving hole 101 extends along the axial direction of the lock housing 1. The clearance hole 103 extends circumferentially around the receiving hole 101 and communicates with the receiving hole 101. The clearance hole 103 is located in the middle of the receiving hole 101 and divides the receiving hole 101 into a front half hole (not shown in the figure) and a rear half hole (not shown in the figure). The locking groove 102 is opened on the hole wall of the front half hole or the rear half hole. The lever 3 has a connecting ring 302 and a lever arm 303. The connecting ring 302 has a connecting hole (not shown in the figure) through which the lock cylinder 2 passes. The hole wall of the connecting hole is provided with a positioning groove 301. The connecting ring 302 is accommodated in the clearance hole 103. The lever arm 303 is located on one side of the connecting ring 302. The above configuration, by providing a clearance hole 103 on the lock housing 1 that extends circumferentially around the receiving hole 101 and communicates with the receiving hole 101 for the insertion of the connecting ring 302, makes the jack 3, locking member 4 and blade assembly 5 compactly assembled and closely positioned relative to each other, effectively shortening the length of the lock cylinder 2 and enabling the lock to be adapted to thinner door bodies.

[0029] In this embodiment of the present invention, the locking member 4 has an unlocking part 401, a first locking part 402, and a second locking part 403. The unlocking part 401 is accommodated in the accommodating groove 201 and extends axially along the accommodating groove 201. The first locking part 402 and the second locking part 403 are disposed on the side of the unlocking part 401 opposite to the blade group 5 and are spaced apart in the length direction of the unlocking part 401. The second locking part 403 is inserted into the positioning groove 301 to make the jack 3 rotate synchronously with the lock shell 1. When the blade group 5 moves away from the unlocking position, the first locking part 402 is inserted into the locking groove 102 to restrict the rotation of the lock cylinder 2, and when the blade group 5 moves to the unlocking position, it moves away from the locking groove 102 to release the lock cylinder 2. The above configuration involves configuring the locking member 4 into an unlocking part 401, a first locking part 402, and a second locking part 403. The second locking part 403 is inserted into the positioning groove 301. The first locking part 402 is inserted into the locking groove 102 to restrict the rotation of the lock cylinder 2 when the blade group 5 moves away from the unlocking position, and moves away from the locking groove 102 to release the lock cylinder 2 when the blade group 5 moves to the unlocking position. This makes the mortise 3, the locking member 4, and the blade group 5 fit together tightly and have close relative positions, effectively shortening the length of the lock cylinder 2. At the same time, it realizes the locking and unlocking of the lock.

[0030] In this embodiment of the invention, the distance between the bottom of the positioning groove 301 and the outer wall of the lock cylinder 2 is defined as D1, and the distance between the bottom of the locking groove 102 and the outer wall of the lock cylinder 2 is defined as D2, where D1 is greater than D2. The distance between the outer side of the first locking part 402 and the unlocking part 401 is defined as H1, and the distance between the outer side of the second locking part 403 and the unlocking part 401 is defined as H2, where H2 is greater than H1. By configuring D1 to be greater than D2 and H2 to be greater than H1, the second locking part 403 is always inserted into the positioning groove 301 when the blade group 5 moves to or away from the unlocking position, ensuring that the pawl 3 and the lock cylinder 2 always rotate synchronously, unaffected by the first locking part 402 moving into or out of the locking groove 102. This results in a compact and reasonable structure.

[0031] In this embodiment of the present invention, the blade group 5 includes a plurality of blades 501 disposed on the lock cylinder 2. Each blade 501 can move relative to the lock cylinder 2 to the unlock position. When the plurality of blades 501 move to the unlock position, they form an unlocking groove 502. When the plurality of blades 501 move to the unlock position, the unlocking part 401 can insert into the unlocking groove 502 to cause the first locking part 402 to move away from the locking groove 102 and release the lock cylinder 2. When at least one blade 501 moves away from the unlock position, the unlocking part 401 moves away from the unlocking groove 502 to cause the first locking part 402 to insert into the locking groove 102 to restrict the rotation of the lock cylinder 2. The above configuration arranges the blade group 5 into several blades 501 that can move relative to the lock cylinder 2 to the unlock position. When the blades 501 move to the unlock position, they form an unlocking groove 502 for the side of the unlocking part 401 facing away from the positioning groove 301 to be inserted. This allows the first locking part 402 to move out of the locking groove 102 when the blade group 5 moves to the unlock position and move into the locking groove 102 when the blade group 5 moves away from the unlock position, thus realizing the locking and unlocking of the lock. The structure is simple and easy to implement.

[0032] In this embodiment of the present invention, the unlocking groove 502, the receiving groove 201 and the locking groove 102 are arranged sequentially from the inside to the outside in the radial direction of the receiving hole 101.

[0033] In this embodiment of the invention, the unlocking part 401, the first locking part 402, and the second locking part 403 are integrally formed. This configuration, by integrating the unlocking part 401, the first locking part 402, and the second locking part 403 into a single unit, gives the locking member 4 good structural strength.

[0034] In this embodiment of the invention, the lock cylinder 2 is provided with a plurality of third elastic elements 6, each corresponding to a plurality of blades 501. Each third elastic element 6 abuts against the lock cylinder 2 and the corresponding blade 501 to drive the corresponding blade 501 away from the unlocking position. The lock cylinder 2 has a keyhole 202 for key insertion. A portion of the blade 501 extends into the keyhole 202. When the key is inserted into the keyhole 202, it moves the blade assembly 5 to the unlocking position. After the key is removed from the keyhole 202, the blade 501 moves away from the unlocking position under the drive of the third elastic elements 6, and the lock re-locks. This configuration, by configuring the third elastic elements 6 within the lock cylinder 2 to drive the blades 501 away from the unlocking position, allows the lock to lock quickly after the key is removed from the keyhole 202.

[0035] In this embodiment of the invention, a first elastic element 7 is provided inside the lock cylinder 2. The first elastic element 7 abuts against the first locking part 402 and the lock cylinder 2 to drive the first locking part 402 into the locking groove 102. This arrangement, by configuring the first elastic element 7 inside the lock cylinder 2 to drive the first locking part 402 into the locking groove 102, allows the lock to lock quickly after the key is removed from the keyhole 202.

[0036] In this embodiment of the invention, a second elastic element 8 is provided inside the lock cylinder 2. The second elastic element 8 abuts against the second locking part 403 and the lock cylinder 2 to move the second locking part 403 toward the positioning groove 301. This arrangement, by configuring the second elastic element 8 inside the lock cylinder 2 to move the second locking part 403 toward the positioning groove 301, ensures that when the first elastic element 7 drives the first locking part 402 into the locking groove 102, the locking member 4 moves stably and smoothly.

[0037] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered as protected by this utility model.

Claims

1. A leaf mortise lock suitable for ultra-thin doors, characterized in that, The lock includes a lock case, a lock cylinder, a mortise, a locking element, and a blade assembly. The lock case has a receiving hole for accommodating the lock cylinder, and the wall of the receiving hole is provided with a locking groove. The outer wall of the lock cylinder is provided with a receiving groove. The lock cylinder can rotate relative to the lock case to communicate with the receiving groove and the locking groove. The mortise passes through the lock cylinder and has a positioning groove that is at least partially facing the receiving groove. The locking element is respectively accommodated in the receiving groove and the positioning groove, so that the mortise rotates synchronously with the lock case. The blade assembly is located on the side of the locking member opposite to the positioning groove and can be moved to the unlock position relative to the lock cylinder. When the receiving groove and the locking groove are connected, the positioning groove is located on the side of the locking groove and is connected to the locking groove. When the blade assembly moves away from the unlock position, the locking member can be inserted into the locking groove to restrict the rotation of the lock cylinder. When the blade assembly moves to the unlock position, the locking member can move away from the locking groove to release the lock cylinder.

2. The blade mortise lock for ultra-thin doors according to claim 1, characterized in that, The lock housing also has a clearance hole that extends circumferentially around the receiving hole and communicates with the receiving hole. The clearance hole is located in the middle of the receiving hole and divides the receiving hole into a front half and a rear half. The locking groove is formed on the hole wall of the front half or the rear half. The lock has a connecting ring and a lever arm. The connecting ring has a connecting hole through which the lock cylinder passes. The connecting hole wall is provided with the positioning groove. The connecting ring is accommodated in the clearance hole. The lever arm is located on one side of the connecting ring.

3. The leaf mortise lock for ultra-thin doors according to claim 1, characterized in that, The locking member has an unlocking part, a first locking part and a second locking part. The unlocking part is accommodated in the accommodating groove and extends axially along the accommodating groove. The first locking part and the second locking part are disposed on the side of the unlocking part opposite to the blade assembly and are spaced apart in the length direction of the unlocking part. The second locking part is inserted into the positioning groove. When the blade group moves away from the unlock position, the first locking part is inserted into the locking groove to restrict the rotation of the lock cylinder, and when the blade group moves to the unlock position, it moves away from the locking groove to release the lock cylinder.

4. The leaf mortise lock for ultra-thin doors according to claim 3, characterized in that, The distance between the bottom of the positioning groove and the outer wall of the lock cylinder is defined as D1, and the distance between the bottom of the locking groove and the outer wall of the lock cylinder is defined as D2, where D1 is greater than D2. The distance between the outer side of the first locking part and the unlocking part is defined as H1, and the distance between the outer side of the second locking part and the unlocking part is defined as H2, where H2 is greater than H1.

5. The blade mortise lock for ultra-thin doors according to claim 3, characterized in that, The blade assembly includes a plurality of blades disposed on the lock cylinder. Each blade can move relative to the lock cylinder to an unlock position. When the plurality of blades move to the unlock position, they form an unlocking groove. When the plurality of blades move to the unlock position, the unlocking part can insert into the unlocking groove to cause the first locking part to move away from the locking groove and release the lock cylinder. When at least one blade moves away from the unlock position, the unlocking part moves away from the unlocking groove to cause the first locking part to insert into the locking groove to restrict the rotation of the lock cylinder.

6. The blade mortise lock for ultra-thin doors according to claim 5, characterized in that, The unlocking groove, the receiving groove, and the locking groove are arranged sequentially from the inside to the outside in the radial direction of the receiving hole.

7. The leaf mortise lock for ultra-thin doors according to claim 3, characterized in that, The unlocking part, the first locking part, and the second locking part are integrally formed.

8. The leaf mortise lock for ultra-thin doors according to claim 3, characterized in that, The lock cylinder is provided with a first elastic element, which abuts against the first locking part and the lock cylinder respectively to drive the first locking part to move into the locking groove.

9. The leaf mortise lock for ultra-thin doors according to claim 3, characterized in that, The lock cylinder is provided with a second elastic element, which abuts against the second locking part and the lock cylinder to cause the second locking part to move toward the positioning groove.

10. The leaf mortise lock for ultra-thin doors according to claim 5, characterized in that, The lock cylinder is provided with a plurality of third elastic elements, each of which corresponds to a plurality of blades. The third elastic elements abut against the lock cylinder and the corresponding blades respectively to drive the corresponding blades to move away from the unlocking position.

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