Door lock mechanism

Abstract

The present invention provides a door lock mechanism, comprising: a mounting panel, which is arranged on a door body, and a mounting cavity is provided between the mounting panel and the door body; a lock body, which is arranged in the mounting cavity, and a lock hole is provided on the lock body, and the lock hole faces the bottom of the mounting cavity, and a first matching portion is provided on the lock body, and at least part of the first matching portion extends in a horizontal direction; a key, and a second matching portion is provided on the key to engage with the first matching portion, and the first matching portion cooperates with the second matching portion to enable the key to push the lock body to move in a vertical direction; a handle assembly, which is connected to the lock body through a transmission assembly, and the lock body drives the handle assembly to rotate through the transmission assembly during the vertical movement of the lock body. The present invention solves the problem of low safety of door locks in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of door locks, and in particular to a door lock mechanism. Background Art

[0002] At present, in order to improve the anti-theft coefficient of door locks, a mechanical lock body and an electronic lock body are usually set on the door body, and the two are controlled independently of each other. When the electronic lock body is powered off or fails, the mechanical lock body is used to unlock the door.

[0003] The lock holes of existing mechanical lock bodies are mostly oriented toward the direction in which a human body stands. Such a directly exposed position of the lock hole reduces the safety of the door lock. Summary of the invention

[0004] The main purpose of the present invention is to provide a door lock mechanism to solve the problem of low safety of door locks in the prior art.

[0005] In order to achieve the above-mentioned objectives, the present invention provides a door lock mechanism, including: an installation panel, which is arranged on a door body, and an installation cavity is provided between the installation panel and the door body; a lock body, which is arranged in the installation cavity, and a lock hole is provided on the lock body, and the lock hole faces the bottom of the installation cavity, and a first matching portion is provided on the lock body, and at least part of the first matching portion extends in a horizontal direction; a key, and a second matching portion is provided on the key, which is meshed with the first matching portion, and the key pushes the lock body to move in a vertical direction through the cooperation of the first matching portion and the second matching portion; a handle assembly, which is connected to the lock body through a transmission assembly, and the handle assembly is driven to rotate by the transmission assembly during the vertical movement of the lock body.

[0006] Further, the first matching portion includes a plurality of matching tooth grooves, the second matching portion includes a plurality of matching teeth, and the plurality of matching tooth grooves and the plurality of matching teeth are meshed with each other.

[0007] Furthermore, the door lock mechanism also includes: a pressure detection component, which is arranged in the lock body, at least part of which is arranged on the bottom surface of the mating tooth groove, and the pressure of the mating tooth exerted on the mating tooth groove is detected by the pressure detection component; there are multiple pressure detection components, and the multiple pressure detection components are arranged one-to-one correspondingly to the multiple mating tooth grooves.

[0008] Furthermore, the first matching portion is arranged on the bottom surface of the lock hole, and the door lock mechanism also includes: a guide groove, which is arranged on the wall surface of the lock hole. There are multiple guide grooves, and the multiple guide grooves are arranged at intervals along the circumferential direction of the lock hole.

[0009] Furthermore, a guide protrusion is provided on the key, and at least a part of the guide protrusion is inserted into the guide slot; there are multiple guide protrusions, and the multiple guide protrusions are provided in a one-to-one correspondence with the multiple guide slots.

[0010] Furthermore, the transmission assembly includes: a connecting crank, which is hinged on the mounting panel, one end of the connecting crank is connected to the lock body, and the other end of the connecting crank is connected to the handle assembly, and the lock body drives the handle assembly to rotate through the connecting crank.

[0011] Furthermore, the transmission assembly also includes: a connecting shaft, which is arranged on the installation panel, and the connecting crank is hinged on the connecting shaft; a torsion spring, which is sleeved on the connecting shaft, and the torsion spring is respectively connected to the connecting crank and the installation panel, and the connecting crank is driven to rotate to the initial position through the torsion spring.

[0012] Furthermore, the handle assembly includes a rotating shaft, on which a connecting block is arranged; and the end of the connecting crank is connected to the connecting block.

[0013] Furthermore, the door lock mechanism also includes: a guide rail, which is arranged in the installation cavity, the guide rail extends in a vertical direction, and at least a part of the lock body is arranged on the guide rail.

[0014] Furthermore, the door lock mechanism also includes: a limit block, which is arranged on the inner wall surface of the installation cavity, and at least a part of the lock body is in contact with the limit block so that the lock body is in an unlocked position.

[0015] The technical solution of the present invention is applied, and the door lock mechanism includes a mounting panel, a lock body, a key and a handle assembly. The mounting panel is arranged on the door body, and there is a mounting cavity between the mounting panel and the door body; the lock body is arranged in the mounting cavity, and a lock hole is arranged on the lock body, and the lock hole faces the bottom of the mounting cavity. The lock body is provided with a first matching portion, and at least part of the first matching portion extends in the horizontal direction; the key is provided with a second matching portion meshed with the first matching portion, and the first matching portion cooperates with the second matching portion so that the key pushes the lock body to move in the vertical direction; the handle assembly is connected to the lock body through a transmission assembly, and the lock body drives the handle assembly to rotate through the transmission assembly during the vertical movement. In this way, when the lock hole is arranged in the direction of the bottom surface, there is no need to rotate the lock core through the key, but directly through the mutual meshing between the first matching portion and the second matching portion, the lock body is pushed to move upward, so that the handle assembly is driven to rotate through the transmission assembly to realize the door opening, so as to avoid the problem of being unable to open the door due to the interference between the user or the key and the door body during the process of turning the key, and at the same time, the lock hole is hidden at the bottom of the mounting panel, thereby improving the safety of the door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of an embodiment of a door lock mechanism according to the present invention is shown;

[0018] Figure 2 A front view of a door lock mechanism according to the present invention is shown;

[0019] Figure 3 A cross-sectional view of a lock body of a door lock mechanism according to the present invention is shown;

[0020] Figure 4 A schematic structural diagram of a key of a door lock mechanism according to the present invention is shown.

[0021] The above drawings include the following reference numerals:

[0022] 1. Installation panel; 10. Installation cavity; 2. Lock body; 20. Lock hole; 21. First matching part; 210. Matching tooth groove; 3. Key; 30. Second matching part; 301. Matching tooth; 31. Guide protrusion; 4. Handle assembly; 40. Rotating shaft; 41. Connecting block; 5. Transmission assembly; 6. Pressure detection component; 7. Guide slide groove; 50. Connecting crank; 51. Connecting shaft; 8. Guide slide rail; 9. Limit block. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0025] Please refer to Figures 1 to 4 The present invention provides a door lock mechanism, comprising: an installation panel 1, which is arranged on a door body, and an installation cavity 10 is provided between the installation panel 1 and the door body; a lock body 2, which is arranged in the installation cavity 10, and a lock hole 20 is provided on the lock body 2, and the lock hole 20 faces the bottom of the installation cavity 10, and a first matching portion 21 is provided on the lock body 2, and at least a part of the first matching portion 21 extends in a horizontal direction; a key 3, and a second matching portion 30 is provided on the key 3, which is engaged with the first matching portion 21, and the key 3 pushes the lock body 2 to move in a vertical direction through the first matching portion 21 and the second matching portion 30; a handle assembly 4, which is connected to the lock body 2 through a transmission assembly 5, and the handle assembly 4 is driven to rotate through the transmission assembly 5 during the movement of the lock body 2 in the vertical direction.

[0026] The door lock mechanism provided according to the present invention includes an installation panel 1, a lock body 2, a key 3 and a handle assembly 4. The installation panel 1 is arranged on the door body, and an installation cavity 10 is provided between the installation panel 1 and the door body; the lock body 2 is arranged in the installation cavity 10, and a lock hole 20 is provided on the lock body 2, and the lock hole 20 faces the bottom of the installation cavity 10. A first matching portion 21 is provided on the lock body 2, and at least part of the first matching portion 21 extends in the horizontal direction; a second matching portion 30 meshing with the first matching portion 21 is provided on the key 3, and the first matching portion 21 cooperates with the second matching portion 30 to enable the key 3 to push the lock body 2 to move in the vertical direction; the handle assembly 4 is connected to the lock body 2 through the transmission assembly 5, and the handle assembly 4 is driven to rotate through the transmission assembly 5 during the vertical movement of the lock body 2. When the lock hole 20 is set toward the bottom surface in this way, there is no need to use the key 3 to rotate the lock core. Instead, the lock body 2 is pushed upward by the mutual engagement between the first matching portion 21 and the second matching portion 30, thereby driving the handle assembly 4 to rotate through the transmission assembly 5 to open the door. This avoids the problem of being unable to open the door due to interference between the user or the key and the door body during the process of turning the key. At the same time, the lock hole is hidden at the bottom of the installation panel 1, thereby improving the safety of the door lock.

[0027] Specifically, the bottom of the mounting panel 1 has an avoidance hole, the lock hole 20 is opposite to the avoidance hole, and the key 3 is inserted into the lock hole 20 after passing through the avoidance hole.

[0028] In a specific implementation, the first matching portion 21 includes a plurality of matching tooth grooves 210, and the second matching portion 30 includes a plurality of matching teeth 301, and the plurality of matching tooth grooves 210 mesh with the plurality of matching teeth 301. The door lock mechanism also includes: a pressure detection component 6, which is arranged in the lock body 2, and at least part of the pressure detection component 6 is arranged on the groove bottom surface of the matching tooth groove 210, and the pressure of the matching teeth 301 on the matching tooth groove 210 is detected by the pressure detection component 6; there are multiple pressure detection components 6, and the multiple pressure detection components 6 are arranged one by one with the multiple matching tooth grooves 210. This arrangement is to improve the safety of the door lock. After each matching tooth groove 210 meshes with each matching tooth 301, the key 3 is pushed upward. At this time, the force on each matching tooth groove 210 is uniform. By setting the pressure detection component 6 to detect the force on each matching tooth groove 210, it is determined whether the lock body 2 is subjected to violent damage. Preferably, the pressure detection component 6 is a pressure sensor, and when the pressure detected by a certain pressure detection component 6 is too large, an alarm signal is issued.

[0029] In the present application, in order to improve the adaptability of the key 3 and the lock hole 20, the first matching portion 21 is arranged on the bottom surface of the lock hole 20, and the door lock mechanism further includes: a guide slot 7, which is arranged on the wall surface of the lock hole 20, and there are multiple guide slots 7, and the multiple guide slots 7 are arranged at intervals along the circumferential direction of the lock hole 20. This arrangement improves the security of the key 3 and the lock body 2.

[0030] Furthermore, the key 3 is provided with a guide protrusion 31, at least part of which is inserted into the guide slot 7; there are multiple guide protrusions 31, and the multiple guide protrusions 31 are provided in a one-to-one correspondence with the multiple guide slots 7. Only when the guide protrusions 31 on the key 3 are both adapted to the guide slots 7, can the key 3 be inserted into the lock hole 20.

[0031] Preferably, the guide slot 7 extends along a zigzag track or a curved track.

[0032] In the embodiment provided by the present invention, the transmission assembly 5 includes: a connecting crank 50, which is hinged on the mounting panel 1, one end of the connecting crank 50 is connected to the lock body 2, and the other end of the connecting crank 50 is connected to the handle assembly 4, and the lock body 2 drives the handle assembly 4 to rotate through the connecting crank 50. Such a structure is simple and easy to implement. When the lock body 2 moves upward, the connecting crank 50 rotates, driving the handle assembly 4 to rotate, thereby realizing the door opening.

[0033] Furthermore, the transmission assembly 5 further comprises: a connecting shaft 51, which is arranged on the installation panel 1, and a connecting crank 50 is hinged on the connecting shaft 51; a torsion spring, which is sleeved on the connecting shaft 51, and the torsion spring is respectively connected to the connecting crank 50 and the installation panel 1, and the connecting crank 50 is driven to rotate to the initial position by the torsion spring. When the door is opened, under the action of the torsion spring, the connecting crank 50 drives the lock body 2 and the handle assembly 4 to rotate to the initial position respectively.

[0034] In the specific implementation process, the handle assembly 4 includes a rotating shaft 40, and a connecting block 41 is arranged on the rotating shaft 40; the end of the connecting crank 50 is connected to the connecting block 41. Such an arrangement facilitates the connection of the connecting crank 50 with the rotating shaft 40.

[0035] In the present application, the door lock mechanism further includes: a guide rail 8, which is arranged in the installation cavity 10, the guide rail 8 extends in the vertical direction, and at least a part of the lock body 2 is arranged on the guide rail 8. The door lock mechanism further includes: a limit block 9, which is arranged on the inner wall surface of the installation cavity 10, and at least a part of the lock body 2 contacts the limit block 9, so that the lock body 2 is in the unlocked position. The lock body 2 is guided by the guide rail 8 so that the lock body 2 slides along the extension direction of the guide rail 8, and the lock body 2 is limited by the limit block 9.

[0036] In another embodiment provided by the present invention, the door lock mechanism also includes an elastic component, and the two ends of the elastic component are respectively connected to the limit block 9 and the lock body 2. When the lock body 2 moves upward, the elastic component is compressed. When the door is opened, the key 3 is removed, and the elastic component pushes the lock body 2 downward under the action of its own elastic restoring force until it returns to the initial position.

[0037] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0038] The door lock mechanism provided according to the present invention includes an installation panel 1, a lock body 2, a key 3 and a handle assembly 4. The installation panel 1 is arranged on the door body, and an installation cavity 10 is provided between the installation panel 1 and the door body; the lock body 2 is arranged in the installation cavity 10, and a lock hole 20 is provided on the lock body 2, and the lock hole 20 faces the bottom of the installation cavity 10. A first matching portion 21 is provided on the lock body 2, and at least part of the first matching portion 21 extends in the horizontal direction; a second matching portion 30 meshing with the first matching portion 21 is provided on the key 3, and the first matching portion 21 cooperates with the second matching portion 30 to enable the key 3 to push the lock body 2 to move in the vertical direction; the handle assembly 4 is connected to the lock body 2 through the transmission assembly 5, and the handle assembly 4 is driven to rotate through the transmission assembly 5 during the vertical movement of the lock body 2. When the lock hole 20 is set toward the bottom surface in this way, there is no need to use the key 3 to rotate the lock core. Instead, the lock body 2 is pushed upward by the mutual engagement between the first matching portion 21 and the second matching portion 30, thereby driving the handle assembly 4 to rotate through the transmission assembly 5 to open the door. This avoids the problem of being unable to open the door due to interference between the user or the key and the door body during the process of turning the key. At the same time, the lock hole is hidden at the bottom of the installation panel 1, thereby improving the safety of the door lock.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A door lock mechanism, characterized in that: include: An installation panel (1) is arranged on the door body, and an installation cavity (10) is provided between the installation panel (1) and the door body; A lock body (2) is arranged in the installation cavity (10), a lock hole (20) is arranged on the lock body (2), the lock hole (20) faces the bottom of the installation cavity (10), and a first matching portion (21) is arranged on the lock body (2), at least a part of the first matching portion (21) extends in a horizontal direction; A key (3), wherein the key (3) is provided with a second matching portion (30) meshing with the first matching portion (21), and the first matching portion (21) and the second matching portion (30) are matched to enable the key (3) to push the lock body (2) to move along the vertical direction; the first matching portion (21) includes a plurality of matching tooth grooves (210), and the second matching portion (30) includes a plurality of matching teeth (301), and the plurality of matching tooth grooves (210) and the plurality of matching teeth (301) are meshed with each other; A handle assembly (4) is connected to the lock body (2) via a transmission assembly (5), and the lock body (2) drives the handle assembly (4) to rotate via the transmission assembly (5) during the vertical movement of the lock body (2); a pressure detection component (6) disposed in the lock body (2), wherein at least a portion of the pressure detection component (6) is disposed on the bottom surface of the matching tooth groove (210), and the pressure of the matching tooth groove (210) exerted by the matching tooth (301) is detected by the pressure detection component (6); There are a plurality of pressure detection components (6), and the plurality of pressure detection components (6) are arranged in a one-to-one correspondence with the plurality of matching tooth grooves (210).

2. The door lock mechanism according to claim 1, characterized in that: The first matching portion (21) is arranged on the bottom surface of the lock hole (20), and the door lock mechanism further comprises: A guide groove (7) is arranged on the wall surface of the lock hole (20), and there are a plurality of guide grooves (7), which are arranged at intervals along the circumferential direction of the lock hole (20).

3. The door lock mechanism according to claim 2, characterized in that: The key (3) is provided with a guide protrusion (31), and at least a portion of the guide protrusion (31) is inserted into the guide slot (7); There are a plurality of guide protrusions (31), and the plurality of guide protrusions (31) are arranged in a one-to-one correspondence with the plurality of guide sliding grooves (7).

4. The door lock mechanism according to claim 1, characterized in that: The transmission assembly (5) comprises: A connecting crank (50) is hinged on the mounting panel (1), one end of the connecting crank (50) is connected to the lock body (2), and the other end of the connecting crank (50) is connected to the handle assembly (4); the lock body (2) drives the handle assembly (4) to rotate via the connecting crank (50).

5. The door lock mechanism according to claim 4, characterized in that: The transmission assembly (5) further comprises: A connecting shaft (51) is arranged on the mounting panel (1), and the connecting crank (50) is hinged on the connecting shaft (51); A torsion spring is sleeved on the connecting shaft (51), and the torsion spring is respectively connected to the connecting crank (50) and the mounting panel (1), and the connecting crank (50) is driven by the torsion spring to rotate to an initial position.

6. The door lock mechanism according to claim 4, characterized in that: The handle assembly (4) comprises a rotating shaft (40), and a connecting block (41) is arranged on the rotating shaft (40); The end of the connecting crank (50) is connected to the connecting block (41).

7. The door lock mechanism according to claim 1, characterized in that: The door lock mechanism also includes: A guide rail (8) is arranged in the installation cavity (10), the guide rail (8) extends in a vertical direction, and at least a portion of the lock body (2) is arranged on the guide rail (8).

8. The door lock mechanism according to claim 7, characterized in that: The door lock mechanism also includes: A limit block (9) is arranged on the inner wall surface of the installation cavity (10), and at least a portion of the lock body (2) is in contact with the limit block (9) so that the lock body (2) is in an unlocked position.

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