Plane lock

Abstract

The utility model belongs to the technical field of locks, and discloses a plane lock which comprises a shell and a bottom plate, a handle groove is formed in the top of the shell, a transmission groove communicating with one side of the bottom of the handle groove is formed in the bottom of the shell, a spring bolt groove communicating with the transmission groove is formed in one side of the shell, and a spring bolt assembly is slidably connected into the spring bolt groove. A handle groove is formed in the top face of the shell, an L-shaped handle is rotationally connected into the handle groove, a transmission assembly is movably connected into the transmission groove, and the two ends of the transmission assembly are connected with the L-shaped handle and the spring bolt assembly correspondingly, so that when the L-shaped handle rotates, the spring bolt assembly can be driven to slide in the spring bolt groove. The bottom of the lock cylinder groove is communicated with the lock tongue groove. Through the arrangement of the L-shaped handle and the transmission assembly, the lock tongue assembly can be driven to contract by pulling the L-shaped handle outwards, so that the lock body is more convenient to open, through the detachable arrangement of the shell and the bottom plate, assembly of components in the lock body is facilitated, the structure is simple, and high practicability is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lock, more particularly, to a flat lock. BACKGROUND

[0002] At present, the existing door lock on the market is basically opened by rotating the handle, and the handle is exposed on the door lock panel, which often hooks clothes, backpack straps and the like, and is inconvenient to use.

[0003] The flat lock refers to the lock embedded in the door, and is called flat lock because the front end surface is parallel to the front end surface of the door. The flat lock comprises a turnable handle, a slidable slide plate, a swingable lock hook, and a torsional spring. The handle is connected with the lock hook through the slide plate.

[0004] The flat lock with the above structure has the following defects in assembly and use: 1. The handle opening relies on rotating the lock core, which is inconvenient to use; 2. The structure is complex and difficult to assemble. CONTENT OF THE INVENTION

[0005] In order to solve the above problems, the present application provides a flat lock.

[0006] The flat lock provided by the present application adopts the following technical scheme:

[0007] A flat lock comprises a shell and a bottom plate. A handle slot is formed in the top of the shell. A transmission slot is formed in the bottom of the shell and is connected with one side of the bottom of the handle slot. A lock tongue slot is formed in one side of the shell and is connected with the transmission slot. A lock tongue assembly is slidably connected in the lock tongue slot. An L-shaped handle is rotatably connected in the handle slot. A transmission assembly is movably connected in the transmission slot. The two ends of the transmission assembly are connected with the L-shaped handle and the lock tongue assembly, respectively. When the L-shaped handle rotates, the lock tongue assembly can slide in the lock tongue slot. A lock core slot is formed in the top surface of the shell and is connected with the bottom of the lock tongue slot. A rotating tongue lock core is fixedly installed in the lock core slot. A return spring is arranged between the inner side end of the lock tongue assembly and the lock tongue slot.

[0008] Further, the rotating shaft of the L-shaped handle connected with the handle slot is located at the L-shaped corner.

[0009] Further, the transmission assembly comprises a first transmission plate and a second transmission plate. A strip-shaped hole is arranged at the front end of the first transmission plate and at the two ends of the second transmission plate. The front end of the first transmission plate is slidably and rotatably connected with the bottom of the L-shaped handle. The other end of the first transmission plate is slidably and rotatably connected with the second transmission plate. The middle part of the second transmission plate is rotatably connected with the shell. The other end of the second transmission plate is slidably and rotatably connected with the lock tongue assembly.

[0010] Further, the rotation shaft between the first transmission plate and the L-shaped handle is perpendicular to the rotation shafts at both ends of the second transmission plate.

[0011] Further, the bottom plate is detachably fixedly connected with the bottom of the shell through bolts, and the disassembly end is located at one side of the bottom plate.

[0012] To sum up, the present application includes at least one of the following beneficial technical effects:

[0013] (1) The present application sets the L-shaped handle and the transmission assembly, and pulls the L-shaped handle outward to drive the lock tongue assembly to retract, so that the opening of the lock body is more convenient.

[0014] (2) The detachable setting of the shell and the bottom plate facilitates the assembly of the internal components of the lock body, and the structure is simple and has high practicality. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the schematic diagram of the appearance of the present application;

[0016] Figure 2 is the split schematic diagram of the present application;

[0017] Figure 3 is the schematic diagram of the internal structure when the lock body is closed;

[0018] Figure 4 is the schematic diagram of the internal structure when the lock body is opened.

[0019] Explanation of figure numbers:

[0020] 1, shell; 11, handle groove; 12, transmission groove; 13, lock tongue groove; 14, lock cylinder groove; 2, bottom plate; 3, lock tongue assembly; 4, L-shaped handle; 5, transmission assembly; 51, first transmission plate; 52, second transmission plate; 6, rotating tongue lock cylinder; 7, return spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0024] Embodiment 1:

[0025] The present application will be further described in detail below in conjunction with the drawings.

[0026] The embodiment of the present application discloses a flat lock, comprising a shell 1 and a bottom plate 2, a handle slot 11 is opened at the top of the shell 1, a transmission slot 12 is opened at the bottom of the shell 1 and is communicated with one side of the bottom of the handle slot 11, a lock tongue slot 13 is arranged on one side of the shell 1 and is communicated with the transmission slot 12, a lock tongue assembly 3 is slidingly connected in the lock tongue slot 13, an L-shaped handle 4 is rotatably connected in the handle slot 11, a transmission assembly 5 is movably connected in the transmission slot 12, and the two ends of the transmission assembly 5 are connected with the L-shaped handle 4 and the lock tongue assembly 3 respectively, so that when the L-shaped handle 4 rotates, the lock tongue assembly 3 can slide in the lock tongue slot 13, a lock cylinder slot 14 is also opened on the top surface of the shell 1, the bottom of the lock cylinder slot 14 is communicated with the lock tongue slot 13, a rotating tongue lock cylinder 6 is fixedly installed in the lock cylinder slot 14, and a return spring 7 is further arranged between the inner side end of the lock tongue assembly 3 and the lock tongue slot 13.

[0027] Please refer to Figure 1 and Figure 2 The rotating shaft of the L-shaped handle 4 connected with the handle slot 11 is located at the L-shaped corner.

[0028] Please refer to Figures 2-4The transmission assembly 5 includes a first transmission plate 51 and a second transmission plate 52. The front end of the first transmission plate 51 and both ends of the second transmission plate 52 are provided with strip-shaped holes. The front end of the first transmission plate 51 is slidably and rotatably connected to the bottom of the L-shaped handle 4. The other end of the first transmission plate 51 is slidably and rotatably connected to the second transmission plate 52. The middle part of the second transmission plate 52 is rotatably connected to the housing 1. The other end of the second transmission plate 52 is slidably and rotatably connected to the locking tongue assembly 3. The rotation axis between the first transmission plate 51 and the L-shaped handle 4 is perpendicular to the rotation axis at both ends of the second transmission plate 52.

[0029] Preferably, the bottom plate 2 is detachably fixed to the bottom of the housing 1 by bolts, and the detachment end is located on one side of the bottom plate 2.

[0030] The implementation principle of a planar lock according to an embodiment of this application is as follows: Through the arrangement of an L-shaped handle 4 and a transmission assembly 5, when the L-shaped handle 4 is pulled outward, it rotates along its pivot point. The bottom end of the L-shaped handle 4 drives the first transmission plate 51 to slide in the extension direction of the latch assembly 3. The sliding of the first transmission plate 51 drives the second transmission plate 52 to rotate along its central pivot point. The end of the second transmission plate 52 moves in the opposite direction, thereby causing the latch assembly 3 to retract inward (e.g., ...). Figure 4 As shown), releasing the L-shaped handle 4 allows the latch assembly 3 to reset under the action of the return spring 7. Furthermore, by using the rotary latch cylinder 6, turning the lock cylinder with a key allows the bottom tongue of the lock cylinder to abut against the inner end of the latch assembly 3, achieving a limit lock. This application, through the detachable design of the housing 1 and the base plate 2, facilitates the assembly of internal components of the lock body and has high practicality.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A flat lock, characterized in that The utility model provides a lock, including shell (1) and bottom plate (2), the top of shell (1) is equipped with handle groove (11), the bottom of shell (1) is equipped with the transmission groove (12) with handle groove (11) bottom one side intercommunication, the side of shell (1) is provided with the lock bolt groove (13) with transmission groove (12) intercommunication, lock bolt assembly (3) is slidably connected in lock bolt groove (13), L-shaped handle (4) is rotatably connected in handle groove (11), transmission assembly (5) is movably connected in the inside of transmission groove (12), both ends of transmission assembly (5) are connected with L-shaped handle (4) and lock bolt assembly (3) respectively, so that when L-shaped handle (4) rotates, can drive lock bolt assembly (3) to slide in lock bolt groove (13), the top surface of shell (1) is also equipped with lock cylinder groove (14), the bottom of lock cylinder groove (14) is connected with lock bolt groove (13), lock cylinder (6) is fixedly installed in lock cylinder groove (14), the inside end of lock bolt assembly (3) and lock bolt groove (13) are also provided with return spring (7).

2. A flat lock according to claim 1, characterised in that: The rotating shaft of the L-shaped handle (4) connected with the handle groove (11) is located at the L-shaped corner.

3. The flat lock of claim 1, wherein: The transmission assembly (5) comprises a first transmission plate (51) and a second transmission plate (52), strip-shaped holes are arranged at the front end of the first transmission plate (51) and both ends of the second transmission plate (52), the front end of the first transmission plate (51) is slidably and rotatably connected with the bottom of the L-shaped handle (4), the other end of the first transmission plate (51) is slidably and rotatably connected with the second transmission plate (52), the middle part of the second transmission plate (52) is rotatably connected with the shell (1), and the other end of the second transmission plate (52) is slidably and rotatably connected with the lock bolt assembly (3).

4. A flat lock according to claim 3, wherein: The rotating shaft between the first transmission plate (51) and the L-shaped handle (4) is perpendicular to the rotating shaft direction of both ends of the second transmission plate (52).

5. The flat lock of claim 1, wherein: The bottom plate (2) is detachably fixedly connected with the bottom of the shell (1) through bolts, and the disassembly end is located at one side of the bottom plate (2).

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