A door lock state detection automatic alarm assembly

Abstract

The utility model belongs to door lock alarm device field, specifically disclose door lock state detection automatic alarm subassembly, including the buckle plate and the buckle box that connects on the buckle plate, is seted up with the buckle hole that communicates with the buckle box on the buckle plate, is fixed with the buzzer, the metal swing arm that can swing, the coil assembly and the power supply assembly that is electrically connected with the coil assembly in the buckle box, the one end of coil assembly is opposite the buckle hole, its opposite another end is opposite the metal swing arm, and is set up with the metal swing arm interval, the first electric component that is fixed in the buckle box is equipped on the side of the metal swing arm that is away from the coil assembly, the first electric component is respectively with the first pole of buzzer and the single pole electric connection of power supply assembly, the one end of metal swing arm is connected with the buckle box and has the tension spring, the swing fulcrum of metal swing arm is located between the tension spring and coil assembly, the second electric component that is opposite the first electric component is equipped on the opposite another end of metal swing arm, this scheme can realize the automatic reminding of switching door and the hand of the person in the door opening closes the door.

Description

Technical Field

[0001] This utility model relates to the field of door lock alarm devices, and in particular to an automatic alarm component for detecting door lock status. Background Technology

[0002] Building entrances and exits are often equipped with hinged doors. These doors can be opened to open the entrance and exit or closed to block it, ensuring that only certain people or certain situations can freely enter and exit the entrance and exit, reducing the risk of theft. At the same time, they can block strong light, noise or rain from passing through the entrance and exit, avoiding disturbance to the area environment and improving the privacy of the space.

[0003] The door mainly consists of a door leaf and a door frame that fixes the door leaf. The outer side of the door frame is fixed to the inner wall of the entrance. The inner side of the door frame has a cutout and a snap plate is installed. The door leaf is hinged to the inner side of the door frame and a door lock is installed on the door leaf. When the lock tongue passes through the snap plate and inserts into the cutout, the door is closed and locked. Conversely, when the lock tongue retracts and disengages from the snap plate, the door can be opened freely. However, when the door is opened, people often forget to close it due to passing through quickly or being focused on other things, resulting in the door being left open. This makes it easy for people to break in and commit theft. Strong light, noise, or rain can also pass through the entrance, causing disturbance to the area environment and poor privacy. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic alarm component for door lock status detection, which can automatically remind people to close the door after it is opened, so as to prevent people from breaking in due to the door being left open, reduce the risk of theft, and block strong light, noise or rain from passing through the entrance and exit, so as to avoid disturbing the area environment and improve the privacy of the space.

[0005] The technical solution provided by this utility model is as follows: an automatic alarm component for door lock status detection, including a snap plate for fixing to a door frame and a snap box connected to the snap plate for embedding into a hole in the door leaf. The snap plate has a snap hole for inserting a lock tongue, and the snap hole communicates with the snap box. A buzzer, a swingable metal arm, a coil assembly for passing through the lock tongue, and a power supply component electrically connected to the coil assembly are fixed inside the snap box. One end of the coil assembly faces the snap hole, and the other end of the coil assembly faces the metal arm and is spaced apart from the metal arm. A first conductive component is fixed inside the snap box on the side of the metal arm away from the coil assembly. The first conductive component is electrically connected to the first pole of the buzzer and the single pole of the power supply component. A tension spring is connected between one end of the metal arm and the snap box. The swing fulcrum of the metal arm is located between the tension spring and the coil assembly. A second conductive component is located on the other end of the metal arm facing the first conductive component.

[0006] In the aforementioned door lock status detection automatic alarm component, the first conductive component includes two power receiving contacts, one of which is conductively connected to the first pole of the buzzer, and the other power receiving contact is conductively connected to the second pole of the buzzer.

[0007] In the aforementioned door lock status detection automatic alarm component, the second conductive component includes two electrically connected power supply contacts, with the two power supply contacts facing each other directly.

[0008] In the aforementioned door lock status detection automatic alarm component, the coil component includes a first insulating washer, a metal cylinder, and a second insulating washer connected coaxially in sequence, as well as a winding assembly wound around the outer circumferential surface of the metal cylinder. The winding assembly is electrically connected to the power supply component. The first insulating washer is directly opposite the buckle hole and connected to the buckle plate.

[0009] In the aforementioned door lock status detection automatic alarm component, the power supply component includes a battery holder and a control board connected to the battery holder. The control board is electrically connected to the two poles of the coil component, and the control board is electrically connected to the first conductive component and the second pole of the buzzer, respectively.

[0010] In the aforementioned door lock status detection automatic alarm component, the buckle plate has a mounting hole facing the battery holder, and a cover is fitted into the mounting hole.

[0011] In the aforementioned door lock status detection automatic alarm component, the buckle plate is provided with a gantry bracket located between the tension spring and the coil assembly. The middle part of the gantry bracket is located on the side of the coil assembly away from the buckle plate. The metal swing arm is hinged to the gantry bracket. The end of the coil assembly facing the buckle hole is connected to the buckle plate.

[0012] In the aforementioned door lock status detection automatic alarm component, two spaced positioning blocks are provided on the middle part of the gantry bracket, and the hinge fulcrum of the metal swing arm is located between the two positioning blocks.

[0013] In the aforementioned door lock status detection automatic alarm component, a first insulating block is provided on one end of the metal swing arm, and the swing fulcrum of the metal swing arm is located on the first insulating block; a second insulating block is provided on the opposite other end of the metal swing arm, and the second conductive component is provided on the second insulating block.

[0014] In the aforementioned door lock status detection automatic alarm component, the buzzer is located on one side of the coil assembly, and a barrier plate is provided between the coil assembly and the buzzer. The barrier plate is fixed to the buckle plate, and a metal plating layer for blocking magnetic fields is provided on the side of the barrier plate facing the coil assembly.

[0015] The beneficial effects of this utility model after adopting the above technical solution are as follows:

[0016] This solution creates a recessed box within a cutout in the door panel, forming a localized space for mounting components. Within this recessed space (the recessed box), three main component modules—a coil assembly, a power supply assembly, and a buzzer—are fixed, along with a swinging metal arm. The end of the metal arm facing the coil assembly (the end away from the panel) has a second conductive component. This second conductive component contacts a first conductive component within the recessed box. The first conductive component is connected to the first pole of the buzzer and the power supply assembly, respectively. The first conductive component is an extended version of both the single pole of the buzzer and the single pole of the power supply component. The opposite end of the coil component faces the latch. When the door is closed, the metal latch automatically pops out and passes through the latch, then into the coil component. The power supply component continuously provides power to the coil component, energizing it and generating a magnetic field. The latch is magnetized within the coil component, strengthening the magnetic field. The latch and the coil component together form an electromagnet structure. After the magnetic field of the coil component is strengthened, one end of the coil component (i.e., the end facing away from the latch plate)... The metal swing arm is magnetically attracted, causing it to swing towards the coil assembly. The second conductive component and the swing fulcrum of the metal swing arm are positioned opposite each other on either side of the coil assembly. As the metal swing arm approaches the coil assembly, it also moves away from the first conductive component, separating the second and first conductive components and preventing contact. This disconnects the buzzer from the power supply component, preventing a closed circuit and keeping the buzzer in a non-operating state. When the door is opened, the latch retracts from the coil assembly and disengages from the latch hole. The magnetic field strength of the coil assembly decreases due to the lack of latch reinforcement, causing the metal swing arm to... The swing fulcrum of the arm is located between the tension spring and the coil assembly. The tension of the tension spring is greater than the magnetic attraction of the coil assembly. The tension spring pulls the metal swing arm away from the coil assembly until the second conductive component on the metal swing arm contacts the first conductive component. A closed circuit is formed between the power supply component and the buzzer. The buzzer works normally and sounds an alarm to remind people to close the door. This realizes automatic door opening and closing reminders to people to close the door after opening it, preventing people from breaking in due to the door being left open, reducing the risk of theft, and blocking strong light, noise or rain from passing through the entrance and exit to avoid disturbing the area environment and improve the privacy of the space. Attached Figure Description

[0017] Figure 1This is a front view of an automatic alarm component for door lock status detection according to Embodiment 1 of this utility model;

[0018] Figure 2 This is a side view of an automatic alarm component for detecting door lock status according to Embodiment 1 of this utility model;

[0019] Figure 3 This is a side cross-sectional view of an automatic alarm component for detecting door lock status according to Embodiment 1 of this utility model;

[0020] Figure 4 This is the utility model Figure 3 A magnified view of a portion of A;

[0021] Figure 5 This is a schematic diagram of the assembly of the metal swing arm and the gantry bracket in Embodiment 1 of this utility model.

[0022] Reference numerals: 1. Door leaf; 2. Lock tongue; 3. Strike plate; 4. Strike box; 5. Battery holder; 6. Control board; 7. Coil assembly; 8. Buzzer; 9. Metal swing arm;

[0023] 31. Cover; 32. Buckle hole; 33. Sound transmission hole; 34. Stud; 35. Mounting hole; 36. Gantry bracket; 361. Positioning block; 41. Connecting ear; 42. Power receiving contact;

[0024] 71. Metal cylinder; 72. First insulating washer; 73. Second insulating washer; 74. Winding assembly;

[0025] 91. First insulating block; 92. Second insulating block; 93. Power supply contact. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below with reference to specific embodiments, but this does not constitute any limitation on this utility model.

[0027] Example 1:

[0028] like Figure 1-5As shown, an automatic alarm component for door lock status detection includes a snap plate 3 for fixing to a door frame and a snap box 4 connected to the snap plate 3 for embedding into a hole in a door leaf 1. The snap plate 3 has a snap hole 32 for inserting a lock tongue 2, and the snap hole 32 communicates with the snap box 4. A buzzer 8, a swingable metal arm 9, a coil assembly 7 for passing through the lock tongue 2, and a power supply component electrically connected to the coil assembly 7 are fixed inside the snap box 4. One end of the coil assembly 7 faces the snap hole 32, and the other end of the coil assembly 7 faces the metal arm 9 and is spaced apart from the metal arm 9. A first conductive component is fixed inside the snap box 4 on the side of the metal arm 9 away from the coil assembly 7. The first conductive component is electrically connected to the first pole of the buzzer 8 and the single pole of the power supply component. A tension spring is connected between one end of the metal arm 9 and the snap box 4. The swing fulcrum of the metal arm 9 is located between the tension spring and the coil assembly 7. A second conductive component is located on the other end of the metal arm 9 facing the first conductive component.

[0029] The specific working principle is as follows: By setting a snap box 4 on the snap plate 3 for embedding in the hole of the door leaf 1, a local space for installing components is formed on the snap plate 3. Within this local space (i.e., inside the snap box 4), three main component modules are fixed: a coil assembly 7, a power supply assembly, and a buzzer 8, along with a swinging metal arm 9. The end of the metal arm 9 facing the coil assembly 7 (i.e., the end away from the snap plate 3) is equipped with a second conductive component. This second conductive component contacts a first conductive component inside the snap box 4. The first conductive component is connected to the first pole of the buzzer 8 and... The power supply component is connected in a single-pole configuration. The first conductive component is equivalent to an extended end of both the single pole of the buzzer 8 and the single pole of the power supply component. The opposite end of the coil component 7 faces the latch hole 32. When the door is closed, the metal latch 2 automatically pops out and passes through the latch hole 32, then enters the coil component 7. The power supply component continuously provides power to the coil component 7, making the coil component 7 energized and generating a magnetic field. The latch 2 is magnetized in the coil component 7, and the magnetic field is strengthened. The latch 2 and the coil component 7 together form an electromagnet structure. After the magnetic field of the coil component 7 is strengthened, one end of the coil component 7 (i.e., away from the latch)... One end of plate 3 magnetically attracts the metal swing arm 9. Under the magnetic attraction of coil assembly 7, the metal swing arm 9 swings towards coil assembly 7. The swing fulcrum of the second conductive component and the metal swing arm 9 are set opposite to each other on both sides of coil assembly 7. As the metal swing arm 9 approaches coil assembly 7, it also moves away from the first conductive component, causing the second conductive component to separate from the first conductive component and not make contact. That is, the buzzer 8 is disconnected from the power supply component and no closed circuit is formed. The buzzer 8 is in a non-working state. When the door is opened, the latch 2 exits coil assembly 7 and disengages from latch hole 32. The magnetic field strength of coil assembly 7 is weakened by the absence of the reinforcement of latch 2. As the door is lowered, the pivot point of the metal swing arm 9 is located between the tension spring and the coil assembly 7. The tension of the tension spring is greater than the magnetic attraction of the coil assembly 7. The tension spring pulls the metal swing arm 9 away from the coil assembly 7 until the second conductive component on the metal swing arm 9 contacts the first conductive component. A closed circuit is formed between the power supply component and the buzzer 8. The buzzer 8 works normally and sounds an alarm to remind people to close the door. This realizes automatic door opening and closing reminders to people to close the door after opening it, preventing people from breaking in due to the door being left open, reducing the risk of theft, and blocking strong light, noise or rain from passing through the entrance and exit to avoid disturbing the area environment and improve the privacy of the space.

[0030] In practical applications, after the second conductive component on the metal swing arm 9 is separated from the first conductive component, the swing arm can either contact the coil component 7 or remain at a distance from the coil component 7. This embodiment does not impose too many restrictions on this.

[0031] In some implementations, the latch 2 extends out of the coil assembly 7, and the metal swing arm 9, which was originally in contact with the coil assembly 7, will instead be in contact with the latch 2.

[0032] The specific structure of the first conductive component is as follows: the first conductive component includes two power receiving contacts 42, one of which is conductively connected to the first pole of the buzzer 8, and the other power receiving contact 42 is conductively connected to the second pole of the buzzer 8.

[0033] When the second conductive component comes into contact with the first conductive component, the power supply component, one of the power receiving contacts 42, the second conductive component, the other power receiving contact 42, and the buzzer 8 are connected in sequence and end to end to form a closed loop.

[0034] The specific structure of the second conductive component is as follows: the second conductive component includes two electrically connected power supply contacts 93, and the two power supply contacts 93 are directly opposite the two power receiving contacts 42.

[0035] In practice, both energizing contacts 93 are located on metal conductor plates, which are located on metal swing arms 9.

[0036] The specific structure of the coil assembly 7 is as follows: the coil assembly 7 includes a first insulating washer 72, a metal cylinder 71 and a second insulating washer 73 connected coaxially in sequence, and a winding group 74 wound around the outer circumferential surface of the metal cylinder 71. The winding group 74 is electrically connected to the power supply component. The first insulating washer 72 is directly opposite the buckle hole 32 and is connected to the buckle plate 3.

[0037] The installation of the first insulating washer 72 and the second insulating washer 73 prevents the metal cylinder 71 from conducting electricity to the buckle plate 3, thus avoiding leakage.

[0038] The specific structure of the power supply component is as follows: the power supply component includes a battery holder 5 and a control board 6 connected to the battery holder 5. The control board 6 is electrically connected to the two poles of the coil assembly 7, and the control board 6 is electrically connected to the second poles of the first conductive assembly and the buzzer 8, respectively.

[0039] The control board 6 is equipped with a control circuit. The battery holder 5 outputs voltage to the coil assembly 7 and the buzzer 8 respectively after the voltage is regulated and the current is stabilized by the control circuit, so as to adapt to the operating voltage of different components.

[0040] In this embodiment, the first pole and the second pole of the buzzer 8 are the two poles of the buzzer 8.

[0041] Preferably, the buckle plate 3 has a mounting hole 35 facing the battery holder 5, and a cover 31 is fitted into the mounting hole 35.

[0042] The mounting hole 35 allows the battery in the battery holder 5 to be replaced without having to remove the clip box 4. When replacing the battery, pry open the cover 31 inside the mounting hole 35 to expose the socket of the battery holder 5. After removing the battery from the battery holder 5 through the socket, insert the new battery and re-lock the cover 31 into the mounting hole 35.

[0043] In this embodiment, both poles of the battery are on the same end, and when the battery is inserted into the battery holder 5, the two poles of the battery are pushed toward the inside of the battery holder 5.

[0044] Further improvements include a gantry bracket 36 located between the tension spring and the coil assembly 7 on the buckle plate 3. The middle part of the gantry bracket 36 is located on the side of the coil assembly 7 away from the buckle plate 3. The metal swing arm 9 is hinged on the gantry bracket 36. One end of the coil assembly 7 facing the buckle hole 32 is connected to the buckle plate 3.

[0045] The gantry bracket 36 prevents the metal swing arm 9 from being directly hinged to the buckle box 4, ensuring assembly accuracy and reducing assembly difficulty. In the specific assembly, the coil assembly 7 is fixed to the buckle plate 3, while the metal swing arm 9 is hinged to the buckle plate 3 through the gantry bracket 36, that is, fixed to the buckle plate 3 in a way that allows relative movement. Both the coil assembly 7 and the metal swing arm 9 are fixed to the buckle plate 3, so their relative positions on the buckle plate 3 are fixed, ensuring the fitting accuracy of the two. In addition, after the buckle plate 3 is connected to the buckle box 4, the metal swing arm 9 and the coil assembly 7 are directly inserted into the buckle box 4, avoiding the connection between the metal swing arm 9 and the coil assembly 7 and the buckle box 4, thereby avoiding complicated assembly operations.

[0046] In the specific configuration, the buckle plate 3 is provided with a stud 34 that passes through the buckle plate 3, and the outer side of the buckle box 4 is provided with a connecting ear 41 that is directly opposite the stud 34. The connecting ear 41 and the stud 34 are detachably connected by bolts.

[0047] Preferably, the gantry support 36 has two spaced positioning blocks 361 in the middle, and the hinge point of the metal swing arm 9 is located between the two positioning blocks 361.

[0048] The positioning block 361 limits the metal swing arm 9 to only swinging motion, prevents the metal swing arm 9 from sliding on the gantry bracket 36, and ensures that the metal swing arm 9 is directly facing the coil assembly 7.

[0049] Another improvement is that a first insulating block 91 is provided on one end of the metal swing arm 9, and the swing fulcrum of the metal swing arm 9 is located on the first insulating block 91; a second insulating block 92 is provided on the opposite other end of the metal swing arm 9, and a second conductive component is provided on the second insulating block 92.

[0050] One end of the metal swing arm 9 is provided with a first insulating block 91 to prevent that end of the metal swing arm 9 from being electrified. The first insulating block 91 is hinged to the gantry bracket 36 and connected to the tension spring, thus blocking the leakage path of the metal swing arm 9 conducting electricity with the tension spring and the gantry bracket 36 respectively.

[0051] A second insulating block 92 is provided at the opposite end of the metal swing arm 9 to prevent that end of the metal swing arm 9 from becoming energized. The second conductive component is installed on the second insulating block 92 to prevent the second conductive component from short-circuiting after forming a closed loop due to leakage conduction of the coil assembly 7.

[0052] In a further improvement, the buzzer 8 is located on one side of the coil assembly 7, and a barrier plate is provided between the coil assembly 7 and the buzzer 8. The barrier plate is fixed on the buckle plate 3, and a metal plating layer for blocking the magnetic field is provided on the side of the barrier plate facing the coil assembly 7.

[0053] In addition, the buckle plate 3 has several sound transmission holes 32 facing the buzzer 8.

[0054] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. An automatic alarm component for detecting door lock status, comprising a snap plate for fixing to a door frame and a snap box connected to the snap plate for embedding into a hole in a door leaf, wherein the snap plate has a snap hole for inserting a lock tongue, the snap hole communicating with the snap box, characterized in that, The buckle box contains a buzzer, a swingable metal arm, a coil assembly for passing through the latch, and a power supply assembly electrically connected to the coil assembly. One end of the coil assembly faces the buckle hole, and the other end faces the metal arm, spaced apart from it. A first conductive component is fixed inside the buckle box on the side of the metal arm away from the coil assembly. The first conductive component is electrically connected to the first pole of the buzzer and the single pole of the power supply assembly. A tension spring connects one end of the metal arm to the buckle box, and the swing fulcrum of the metal arm is located between the tension spring and the coil assembly. A second conductive component is located on the other end of the metal arm, facing the first conductive component.

2. The automatic alarm component for door lock status detection according to claim 1, characterized in that, The first conductive component includes two power-receiving contacts, one of which is electrically connected to the first pole of the buzzer, and the other power-receiving contact is electrically connected to the second pole of the buzzer.

3. The automatic alarm component for door lock status detection according to claim 2, characterized in that, The second conductive component includes two electrically connected power supply contacts, which are directly opposite to the two power receiving contacts.

4. The automatic alarm component for door lock status detection according to claim 1, characterized in that, The coil assembly includes a first insulating washer, a metal cylinder, and a second insulating washer connected coaxially in sequence, as well as a winding group wound around the outer circumference of the metal cylinder. The winding group is electrically connected to the power supply assembly. The first insulating washer is directly opposite the buckle hole and connected to the buckle plate.

5. The automatic alarm component for door lock status detection according to claim 1, characterized in that, The power supply assembly includes a battery holder and a control board connected to the battery holder. The control board is electrically connected to the two poles of the coil assembly and to the second poles of the first conductive assembly and the buzzer, respectively.

6. The automatic alarm component for door lock status detection according to claim 5, characterized in that, The buckle plate has a mounting hole facing the battery holder, and a cover is fitted into the mounting hole.

7. The automatic alarm component for door lock status detection according to claim 1, characterized in that, The buckle plate is provided with a gantry bracket located between the tension spring and the coil assembly. The middle part of the gantry bracket is located on the side of the coil assembly away from the buckle plate. The metal swing arm is hinged to the gantry bracket. The end of the coil assembly facing the buckle hole is connected to the buckle plate.

8. The automatic alarm component for door lock status detection according to claim 7, characterized in that, The gantry support has two spaced-apart positioning blocks in the middle, and the hinge point of the metal swing arm is located between the two positioning blocks.

9. The automatic alarm component for door lock status detection according to claim 1, characterized in that, A first insulating block is provided at one end of the metal swing arm, and the swing fulcrum of the metal swing arm is located on the first insulating block; a second insulating block is provided at the opposite end of the metal swing arm, and the second conductive component is provided on the second insulating block.

10. The automatic alarm component for door lock status detection according to claim 1, characterized in that, The buzzer is located on one side of the coil assembly, and a barrier plate is provided between the coil assembly and the buzzer. The barrier plate is fixed to the buckle plate, and a metal plating layer for blocking magnetic fields is provided on the side of the barrier plate facing the coil assembly.

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