Portable alarm spring lock

Abstract

A portable alarm spring lock comprises a shell, a lock bar, a sliding assembly and a locking assembly, the lock bar is installed in the shell and slides in the length direction of the shell, a door hook buckle connected with a door frame spring bolt hole in a hooked mode is arranged at one end of the lock bar, the sliding assembly is arranged on the lock bar and drives the lock bar to stretch out and draw back, and the locking assembly used for limiting the lock bar from stretching out is arranged on the shell. The alarm device comprises a buzzer and a vibration sensor capable of triggering the buzzer; a sliding locking type design is adopted, so that the range of the spring lock can be freely adjusted, the applicability of the spring lock is improved, and the stability and the reliability in various use scenes are ensured; the alarm device is arranged in the spring lock device, the device monitors the vibration condition of the door in real time through the vibration sensor, the safety performance of the spring lock device is enhanced through the function, and more comprehensive safety guarantee is provided for a user.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, in particular to a portable alarm latch lock. Background Art

[0002] In order to achieve that traditional door locks can be operated and opened from both the inside and outside of the door body, they are usually equipped with lock bodies on both the inside and outside of the door body. This means that even when the door is closed, it can still be opened by technical unlocking or violent destruction from outside the door body, which has poor reliability and safety. In order to solve the above problems, portable latch locks have appeared on the market.

[0003] In the prior art, a Chinese invention patent with publication number CN111155856B provides a door stopper, which includes a main base plate, a guide screw blade is provided in the middle of the main base plate, a guide screw groove is provided on the side wall of the guide screw blade, and a fixed hook body is provided at the head of the main base plate; the movable hook body is connected to the fixed hook body by rotation, and the driving rack is slidably provided on the main base plate, and the driving rack drives the movable hook body to rotate; the fixed hook body and the movable hook body are hooked in the door lock hole, and the pressure wheel nut cooperates with the guide screw groove, and the pressure wheel nut is rotated until it rests against the door panel, and the door cannot be opened by external force.

[0004] The door stopper in the above patent uses a pressure wheel nut and a main base plate guide screw to rotate against the door panel. Installation and disassembly require rotating the pressure wheel nut, which is cumbersome to operate and inconvenient for assembly and disassembly. After the door stopper is installed, the door is pushed by external force, and the nut threads may get stuck, making the door stopper unable to be disassembled. Some door lock holes cannot accommodate double hooks and cannot be adapted to all doors, and have poor versatility and safety. Utility Model Content

[0005] In view of the shortcomings of the above problems, the utility model provides a portable alarm latch.

[0006] To achieve the above-mentioned purpose, the utility model provides a portable alarm latch, comprising: a shell, a lock bar, a sliding assembly, and a locking assembly. The lock bar is installed in the shell and slides along the length direction of the shell. One end of the lock bar is provided with a door hook for hooking into the lock tongue hole of the door frame. The sliding assembly is provided on the lock bar and drives the lock bar to extend and retract. The shell is provided with a locking assembly for limiting the extension of the lock bar.

[0007] Furthermore, the sliding assembly includes a sliding plate and a slider. A sliding groove is provided on the upper part of the shell. The slider is slidably provided in the sliding groove. The slider passes through the sliding groove and is connected to the sliding plate. The sliding plate is provided on the locking bar. When the slider slides, it drives the sliding plate.

[0008] Furthermore, the lock bar is provided with a cavity along the length direction, and the sliding plate is provided with a plurality of latching teeth distributed along the length direction, and the latching teeth are arranged facing the cavity.

[0009] Furthermore, the locking assembly includes a locking block, which is provided with a plurality of locking buckles distributed along the length direction. The locking block is provided with an elastic member, which connects the locking block and the shell and is used to drive the locking block to reset after movement. The locking buckles engage the teeth to limit the movement of the lock bar.

[0010] Furthermore, the elastic member is a return spring, one end of which is connected to the locking block and the other end to the housing. Both the latching teeth and the locking buckle are trapezoidal tooth-like protrusions. A release switch is provided at the end of the locking block away from the elastic member. The release switch protrudes and is mounted in a mounting hole provided in the lower portion of the housing. The locking block is rotatably connected to the housing via a fixed shaft.

[0011] Furthermore, an opening is provided at one end of the shell, and the lock bar extends through the opening. The upper part of the shell is retracted inward relative to the opening to form a vertical surface. When the lock bar is stored in the shell, there is a gap of a certain distance between the door hook and the vertical surface.

[0012] Furthermore, an alarm device is provided in the shell, and the alarm device includes a buzzer and a vibration sensor that can trigger the buzzer.

[0013] Furthermore, an on / off key is provided on one side of the housing, and the on / off key controls the opening and closing of the alarm device.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] A sliding assembly is used to control the extension and retraction of the lock bar. When the lock bar reaches the ideal position, the locking assembly engages the lock bar. When the shell is against the door, manually pull the slider in the opposite direction of the door to reduce the installation gap and improve stability. The release button can be unlocked with one click, which simplifies the unlocking process and improves the convenience and efficiency of use. The sliding locking design allows the lock to be freely adjusted, which improves the applicability of the lock and ensures stability and reliability in various usage scenarios. The lock device has a built-in alarm device, which monitors the vibration of the door in real time through a vibration sensor. This function enhances the safety performance of the lock device and provides users with more comprehensive safety protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0017] Figure 1 This is a schematic diagram of a portable alarm latch lock with the lock bar extended according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1A schematic structural diagram of a portable alarm latch sliding assembly;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the portable alarm latch lock strip;

[0020] Figure 4 for Figure 1 A schematic diagram of the structure of the portable alarm latch locking assembly;

[0021] Figure 5 for Figure 1 A perspective sectional view of the portable alarm latch in the working state;

[0022] Figure 6 for Figure 4 A partial enlarged view of point B in the middle;

[0023] Figure 7 for Figure 1 A schematic structural diagram of a portable alarm latch from another perspective;

[0024] Figure 8 for Figure 1 Schematic diagram of the portable alarm latch when it is stored;

[0025] Figure 9 for Figure 1 A schematic diagram of the structure of the portable alarm latch with the lower housing removed;

[0026] Figure 10 for Figure 1 Schematic diagram of the portable alarm latch hooking the door frame.

[0027] In the picture:

[0028] Housing (1); lock bar (2); door hook (3); sliding groove (4); cavity (5); mounting hole (6); opening (7); vertical surface (8); switch key (9); sliding assembly (10); sliding plate (11); slider (12); latching tooth (13); locking assembly (20); locking block (21); locking buckle (22); elastic member (23); release switch (24); fixed shaft (25); alarm device (30); buzzer (31); vibration sensor (32); DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] References herein to "embodiments" or "implementations" mean that a particular feature, structure, or characteristic described in connection with the embodiments or implementations may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] In this specification, for convenience, words and phrases indicating orientation or positional relationships, such as "middle," "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inside," and "outside," are used to illustrate the positional relationships of constituent elements with reference to the accompanying drawings. This is merely for the purpose of facilitating the description of this specification and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present disclosure. The positional relationships of constituent elements may be appropriately changed depending on the orientation of the constituent elements being described. Therefore, the present disclosure is not limited to the words and phrases described in the specification and may be appropriately replaced depending on the circumstances.

[0032] like Figures 1 to 10 Shown is the best embodiment of the present utility model.

[0033] This embodiment provides a portable alarm latch, including a shell 1, a lock bar 2, a sliding assembly 10, and a locking assembly 20. The lock bar 2 is installed in the shell 1 and slides along the length direction of the shell 1. A door hook 3 is provided at one end of the lock bar 2, and the door hook 3 is hooked to the lock tongue hole of the door frame. The sliding assembly 10 is slidably set on the lock bar 2 and drives the lock bar 2 to extend and retract. A locking assembly 20 for limiting the extension of the lock bar 2 is provided on the shell 1.

[0034] like Figure 1 、 Figure 2 and Figure 10 As shown, in this embodiment, the sliding assembly 10 includes a sliding plate 11 and a slider 12. A sliding groove 4 is provided on the upper part of the housing 1 of the latch. The slider 11 is slidably set in the sliding groove 4. The slider 12 passes through the sliding groove 4 and is connected to the sliding plate 11. The sliding plate 11 is set on the lock bar 2. The user pushes the slider 12 to make it slide in the sliding groove 4, driving the sliding plate 11 to move, and then driving the lock bar 2 to retract and retract, which is convenient for the user to adjust the lock bar state as needed. When the housing 1 is against the door, the slider 12 is manually pulled in the opposite direction to make the door hook 3 tightly fit the door frame lock tongue hole, reducing the gap during installation to ensure that it is more secure when locked.

[0035] like Figures 2 to 4As shown, in this embodiment, the locking bar 2 is provided with a cavity 5 along the length direction, and the sliding plate 11 is provided with a plurality of latches 13 distributed along the length direction, and the latches 13 are arranged opposite the cavity 5; the locking assembly 20 includes a locking block 21, and the locking block 21 is provided with a plurality of locking buckles 22 distributed along the length direction, and the locking block 21 is provided with an elastic member 23, which connects the locking block 21 and the shell 1, and the elastic member 23 can be driven to reset after the locking block 21 moves; the locking buckle 22 tightly engages the latch teeth 13, thereby limiting the movement of the locking bar 2, making the locking more stable.

[0036] like Figure 4 and Figure 5 As shown, in this embodiment, the elastic member 23 is preferably a return spring, or a rubber band or other elastic material, one end of the return spring is connected to the locking block 21, and the other end is connected to the housing 1; when the locking block 21 is pressed up by an external force, the return spring can automatically push the locking block 21 back to its original position and continue to engage the latching tooth 13; in another embodiment (not shown in the figure), the elastic member 23 can be replaced with two magnets, each magnet is circular or rectangular (the specific shape can be varied), and the two magnets are respectively embedded in the locking block 21 and the housing 1, and the locking block 21 is pushed back to its original position by the repulsion of the same poles of the two magnets. This method can avoid the elastic member 23 from being used too much, resulting in a poor rebound effect, and the locking block 21 cannot be effectively pushed back to its original position.

[0037] like Figure 6 As shown, in this embodiment, the latch tooth 13 and the locking buckle 22 are both trapezoidal tooth-like protrusions. This design provides good meshing and self-locking properties. The structure of the trapezoidal tooth-like protrusions enables the latch tooth 13 and the locking buckle 22 to disperse stress when subjected to force, thereby avoiding damage caused by local stress concentration; this design improves the load-bearing capacity of the latch tooth 13 and the locking buckle 22, enabling them to withstand greater loads and impacts, thereby ensuring that the latch is more stable and safe.

[0038] like Figure 4 and Figure 7 As shown, in this embodiment, a release switch 24 is provided at one end of the locking block 21 away from the elastic member 23, and a mounting hole 6 is provided at the lower portion of the shell 1, so that the release switch 24 can be conveniently protruded and installed in the mounting hole 6, and the locking block 21 is rotatably connected to the shell 1 through a fixed shaft 25. When the locking block 21 is subjected to the force generated by pressing the release switch 24, it can rotate around the fixed shaft 25, thereby realizing the transition from the locked state to the unlocked state.

[0039] like Figure 8As shown, in this embodiment, an opening 7 is provided at one end of the shell 1, and the lock bar 2 extends through the opening 7. The lower part of the shell 1 is retracted inward relative to the opening 7 to form a vertical surface 8. The vertical surface 8 is retracted to form a cavity for accommodating the door hook 3. When stored, the door hook 3 is located in the cavity to improve the overall compactness, make the storage space smaller, and facilitate carrying and storage; when the lock bar 2 is retracted and stored in the shell 1, there is a gap of a certain distance between the door hook 3 and the vertical surface 8, leaving enough space for pulling out the lock bar 2.

[0040] like Figure 9 As shown, in this embodiment, an alarm device 30 is provided in the latch housing 1, and the alarm device 30 includes a buzzer 31 and a vibration sensor 32 that can trigger the buzzer 31. A switch key 9 is provided on one side of the housing 1, and the switch key 9 controls the opening and closing of the alarm device 30. When the latch is installed, the alarm device 30 is turned on by the switch key 9. When the door is touched and knocked by external force to generate vibration, the internal vibration sensor 32 senses the vibration and triggers the buzzer 31 to emit an alarm sound, so that the people indoors are reminded that there is an abnormality at the door and need to be vigilant. At the same time, the alarm sound can also warn and deter illegal acts outdoors. The switch key 9 arranged on the side of the shell 1 allows the user to control the opening and closing of the alarm device 30 as needed according to different usage scenarios, thereby increasing the flexibility of use; the vibration sensor can adopt a ball contact type, such as models X160, X23, 300A-1, S08-1, etc., which has the advantages of high precision, high sensitivity, ruggedness and durability, and simple structure. In some embodiments (not shown in the figure), the vibration sensor 32 of the alarm device 30 can also be replaced by a pressure-sensitive sensor and a displacement sensor to detect abnormalities of the door, thereby effectively protecting the safety of life and property.

[0041] The technical means disclosed in the present utility model are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A portable alarm latch, characterized in that: include: A housing (1), a lock bar (2), a sliding assembly (10), and a locking assembly (20); the lock bar (2) is installed in the housing (1) and slides along the length direction of the housing (1); one end of the lock bar (2) is provided with a door hook (3) for hooking into a door frame lock bolt hole; the sliding assembly (10) is provided on the lock bar (2) and drives the lock bar (2) to extend and retract; and the housing (1) is provided with a locking assembly (20) for limiting the extension of the lock bar (2).

2. A portable alarm latch according to claim 1, characterized in that: The sliding assembly (10) includes a sliding plate (11) and a slider (12). A sliding groove (4) is provided on the upper portion of the housing (1). The slider (12) is slidably arranged in the sliding groove (4). The slider (12) passes through the sliding groove (4) and is connected to the sliding plate (11). The sliding plate (11) is provided on the locking bar (2). When the slider (12) slides, it drives the sliding plate (11).

3. A portable alarm latch according to claim 2, characterized in that: The lock bar (2) is provided with a cavity (5) along the length direction, and the sliding plate (11) is provided with a plurality of latching teeth (13) distributed along the length direction, and the latching teeth (13) are arranged facing the cavity (5).

4. A portable alarm latch according to claim 3, characterized in that: The locking assembly (20) includes a locking block (21), the locking block (21) is provided with a plurality of locking buckles (22) distributed along the length direction, the locking block (21) is provided with an elastic member (23), the elastic member (23) connects the locking block (21) and the housing (1) and is used to drive the locking block (21) to reset after movement, and the locking buckles (22) engage with the latch teeth (13) to limit the movement of the lock bar (2).

5. A portable alarm latch according to claim 4, characterized in that: The elastic member (23) is a return spring, one end of which is connected to the locking block (21), and the other end of which is connected to the housing (1).

6. A portable alarm latch according to claim 4, characterized in that: The latch teeth (13) and the locking buckle (22) are both trapezoidal tooth-shaped protrusions.

7. A portable alarm latch according to claim 4, characterized in that: A release switch (24) is provided at one end of the locking block (21) away from the elastic member (23); a mounting hole (6) is provided at the lower portion of the housing (1); the release switch (24) protrudes and is mounted in the mounting hole (6); and the locking block (21) is rotatably connected to the housing (1) via a fixed shaft (25).

8. A portable alarm latch according to any one of claims 1 to 7, characterized in that: An opening (7) is provided at one end of the housing (1), the locking bar (2) extends through the opening (7), and the upper portion of the housing (1) is retracted inward relative to the opening (7) to form a vertical surface (8); When the lock bar (2) is stored in the housing (1), a certain distance of gap exists between the door hook (3) and the vertical surface (8).

9. A portable alarm latch according to any one of claims 1 to 7, characterized in that: An alarm device (30) is provided in the housing, and the alarm device comprises a buzzer (31) and a vibration sensor (32) capable of triggering the buzzer (31).

10. A portable alarm latch according to claim 9, characterized in that: A switch key (9) for controlling the alarm device (30) to be turned on and off is provided on one side of the housing (1).

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