Magnetic lock for children

Abstract

The application discloses a child magnetic lock and belongs to the technical field of child safety locks. The child magnetic lock comprises a lock body, a driving element and a lock tongue which are movably connected in the lock body, the lock tongue can be extended from the lock body to realize locking, a first magnetic attraction element is arranged on the driving element, the lock tongue is provided with a reverse push force receiving surface, the lock body is arranged on a first component, and the reverse push force receiving surface of the lock tongue in the extended state can directly abut against a blocking surface of a second component to realize locking between the first component and the second component. The child magnetic lock further comprises a lock catch which is arranged on the second component and an installation arm which is integrally formed with the lock catch to assist positioning of the lock catch. The child magnetic lock can realize locking without the lock catch, has high adaptability, and when the lock catch needs to be arranged, the lock catch can be conveniently and accurately positioned and arranged on the lock body, and the operation is convenient and the arrangement is simple.

Description

Technical Field

[0001] This invention relates to the field of child safety lock technology, and in particular to child magnetic locks. Background Technology

[0002] Child-safe magnetic locks are used to prevent children from opening drawers, cabinets, and other furniture at will, avoiding pinching their fingers or accidentally touching dangerous items. Common magnetic locks typically consist of two parts: a lock body and a separate latch. The lock body is mounted on a first component (such as a drawer or door panel), and the latch is mounted on a second component (such as a cabinet body). The lock body contains a magnetic attractor and a retractable bolt, while the latch has a groove that engages with the bolt. In use, the bolt extends under magnetic force and hooks into the latch's groove, thus locking the lock. To unlock, an external magnetic key attracts the magnetic attractor within the lock body, causing the bolt to retract and opening the drawer or door panel.

[0003] However, the aforementioned magnetic locks rely on a latch to achieve their locking function. For some structurally unique furniture, such as cabinets with decorative edges or drawers with small gaps between shelves, installing the latch is often difficult or even impossible, making them incompatible with the magnetic locks. Furthermore, since the lock body and latch are two separate components, misalignment can easily occur during installation, leading to insecure locking or failure to lock. In addition, installing the latch usually requires auxiliary supports or additional positioning tools, further increasing the difficulty of installation. Summary of the Invention

[0004] To address the shortcomings of the prior art, the present invention aims to provide a child magnetic lock that can lock without a latch, is highly adaptable, and when a latch is required, it can be conveniently and accurately positioned and installed with the lock body, making it easy to operate and install.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: A child magnetic lock is provided, including a lock body, wherein the lock body is provided with a drive component and a locking tongue that can move in linkage, and the locking tongue can extend from the lock body to achieve locking; The driving component is provided with a first magnetic attraction component; The bolt has a counter-pushing force-bearing surface. The lock body is mounted on the first component. When the bolt is extended, its counter-pushing force-bearing surface can directly abut against the blocking surface of the second component, thereby achieving locking between the first component and the second component. In this case, there is no need to set a separate latch between the locking tongue and the second component.

[0006] Furthermore, the lock body includes an outer shell and an inner sleeve fitted inside the outer shell.

[0007] Furthermore, the outer shell is provided with a first support portion, and the inner shell is provided with a second support portion; the latch is provided with a third support portion and a fourth support portion; when the latch is in the locked state, the reverse force-bearing surface is subjected to force, the third support portion abuts against the first support portion, and the fourth support portion abuts against the second support portion, forming a stable support structure with at least three force-bearing points.

[0008] Furthermore, the driving component is provided with a driving block, and the locking tongue is provided with a slide rail. The driving block slides in the slide rail, thereby driving the locking tongue to extend or retract. The driving component and the locking tongue are both hinged to the inner sleeve and assembled and fixed inside the outer shell.

[0009] Furthermore, it also includes a sliding button, which is provided with a second magnetic element. The second magnetic element is used to attract the first magnetic element, thereby putting the driving element in a locked position. The sliding path of the slider is provided with a locking point. When the slider is slid to the locking point, the slider is held in that position, and the drive unit remains in the unlocked position.

[0010] Child magnetic locks, including: Lock body; A latch is used to be installed on a second component. The latch is provided with an installation arm to assist in the positioning of the latch. After the latch is installed, the installation arm can be pressed down and locked in place, or it can be pried off.

[0011] Furthermore, the lock body uses a child magnetic lock body.

[0012] Furthermore, the mounting arm is provided with a mounting post, and the lock body is provided with a mounting hole. The mounting post can extend into the mounting hole to assist in positioning the latch and the lock body during installation. Furthermore, the latch is provided with a baffle to resist the counter-pushing force surface of the latch tongue.

[0013] Furthermore, the latch is provided with a scale groove for inserting and fixing a scale to assist in measuring the installation position of the lock body.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The child magnetic lock of the present invention has a counter-pushing force surface on the lock tongue. The lock body is installed on the first component such as a drawer or door panel. When the lock tongue is extended, its counter-pushing force surface can directly abut against the blocking surface of the second component such as a cabinet, partition or decorative edge. The structure of the second component itself is used as the locking force point. There is no need to set up a separate locking component, which expands the application range of the product, especially suitable for furniture structures that cannot install locking components. 2. In the example of the magnetic lock for children of the present invention, when the lock tongue is in the locked state, the force-bearing surface is subjected to force, the third support part abuts against the first support part, and the fourth support part abuts against the second support part, forming a stable support structure with at least three force-bearing points. This structure makes the lock tongue subjected to force balance in the locked state, thereby improving the structural stability. 3. The child magnetic lock of the present invention has an integrally formed mounting arm on the buckle to temporarily fix the buckle to the lock body, which helps the user to quickly find the installation position of the buckle. After the buckle is fixed to the second component, the mounting arm can be pressed down and locked, or directly pried off, which solves the problem of repeated measurement and difficulty in alignment when installing the buckle, making the installation process more convenient and accurate. 4. The child magnetic lock of the present invention allows the drive component to be manually moved to the unlock position by sliding a button, so that the lock body is in the normally open state, which meets the needs of different usage scenarios; 5. In the example of the child magnetic lock of the present invention, the use of a ruler can accurately determine the installation position of the lock body, further reducing the difficulty of installation. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the lock body structure; Figure 2 This is an exploded view of the lock body; Figure 3 This is a sectional view of the lock body; Figure 4 This is a schematic diagram of the installation structure of the drive component and the locking tongue; Figure 5 This is a schematic diagram of the unlocked state structure; Figure 6 To use state diagrams; Figure 7 This is a schematic diagram of the magnetic lock structure in Example 2; Figure 8 This is a schematic diagram of the locking mechanism; Figure 9 To use state diagrams; Figure 10 This is a schematic diagram of the scale and locking mechanism.

[0016] In the diagram: 1-lock body, 11-drive component, 12-lock tongue, 121-third support part, 122-fourth support part, 13-first magnetic attraction part, 14-reverse push force surface, 15-second magnetic attraction part, 16-slide button, 17-drive block, 18-arc slide rail, 19-mounting hole, 110-outer shell, 111-inner sleeve, 112-second support part, 113-first support part, 2-lock buckle, 21-scale groove, 22-baffle, 3-mounting arm, 31-mounting post, 4-scale. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example 1:

[0019] like Figure 1-5 As shown, this embodiment provides a child magnetic lock, including a lock body 1. The lock body 1 is assembled from an outer shell 110, an inner sleeve 111, a latch 12, a drive component 11, a first magnetic attractor 13, a sliding button 16, and a second magnetic attractor 15. The back of the lock body 1 has an adhesive backing, allowing it to be fixed to the mounting surface with adhesive or screws. The drive component 11 and the latch 12 are assembled and fixed through the inner sleeve 111. The latch 12 and the drive component 11 work together to switch between the locked and unlocked positions.

[0020] Specifically, the driving component 11 serves as a large magnetic base for the lock, and it has mounting holes. The first magnetic suction component 13 is installed in the mounting holes of the large magnetic base. The driving component 11 has a driving block 17, and the latch 12 has an arc-shaped slide rail 18. The driving block 17 is slidably disposed within the slide rail 18, and the movement of the driving block 17 can change the state of the latch 12. In this embodiment, the driving component 11 is hinged to the inner sleeve 111 of the lock body 1 via a hinge shaft, and the latch 12 is also hinged to the inner sleeve 111 via a hinge shaft. When the driving component 11 rotates around its hinge shaft, the driving block 17 slides within the slide rail 18, causing the latch 12 to rotate around its hinge shaft, thereby causing the latch 12 to extend or retract into the lock body 1.

[0021] In this embodiment, the outer shell 110 is provided with a first support portion 113, and the inner sleeve 111 is provided with a second support portion 112; the latch 12 is provided with a third support portion 121 and a fourth support portion 122; when the latch 12 is in the locked state, the reverse thrust surface 14 is subjected to force, the third support portion 121 abuts against the first support portion 113, and the fourth support portion 122 abuts against the second support portion 112, forming a stable support structure with at least three force points. Through the cooperation of the third support portion 121 with the first support portion 113 and the fourth support portion 122 with the second support portion 112, the latch 12 forms a stable support structure with at least three force points in the locked state, improving structural stability.

[0022] Preferably, the distance between the latch 12 and the mounting surface of the lock body 1 after it is raised is 16mm-26mm. This transmission method has a compact structure, smooth movement, and can effectively avoid jamming.

[0023] The latch 12 has a counter-pushing force-bearing surface 14. In use, the lock body 1 is installed on the first component (such as a drawer panel or cabinet door). When the drawer or cabinet door is closed, the latch 12 extends under magnetic force, and its counter-pushing force-bearing surface 14 directly abuts against the blocking surface of the second component, thereby achieving locking. The blocking surface includes, but is not limited to: the lower part of the inner side of the upper drawer, the lower edge or side of the drawer divider, the lower edge of the cabinet top panel, etc. In this scenario, there is no need to set a separate latch 2 between the latch 12 and the second component; the latch 12 directly utilizes the structural surface of the second component as the locking force-bearing point.

[0024] The lock body 1 is further provided with a second magnetic attractor 15, which is used to attract the first magnetic attractor 13, thereby causing the drive member 11 to automatically return to the locked position. In this embodiment, the second magnetic attractor 15 is disposed in the slide button 16. The slide button 16 serves as a normally open switch, and the magnetic lock can be kept in the normally open state by sliding the slide button 16. At the same time, the second magnetic attractor 15 on the slide button 16 can generate an attractive force on the first magnetic attractor 13, thereby causing the drive member 11 to automatically return to the locked position.

[0025] When an external magnetic key approaches the lock body 1, its magnetic force attracts the first magnetic attractor 13. The first magnetic attractor 13 overcomes the attraction of the second magnetic attractor 15 and moves towards the key, causing the drive member 11 to move to the unlock position and retracting the bolt 12. When the normally open switch is in the normally closed position, after the key is removed, the drive member 11 is attracted by the second magnetic attractor 15, and the drive member 11 swings to the locking end, the bolt 12 rises, and the magnetic lock automatically returns to the locked position. When the magnetic lock is not needed, the user pushes the slider 16 towards the adhesive surface of the lock body 1. The slider 16 pushes the drive member 11 to the unlock position, and the bolt 12 descends and retracts. The slider 16 has a locking point on its sliding path. When the slider 16 slides to the locking point, the slider 16 is held in that position, the drive member 11 remains in the unlock position, and the drawer remains open. By moving the slider 16 in the opposite direction to move it away from the locking point, the drive member 11 automatically resets under the attraction of the second magnetic attractor 15, and the bolt 12 rises again.

[0026] Use cases: (1) The bottom plate of the lower drawer fits into the bottom plate of the upper drawer. like Figure 6 As shown, the lock body 1 is installed on the inner side panel of the lower drawer. When closed, the locking tongue 12 directly abuts against the lower part of the inner side panel of the upper drawer. In this scenario, no latch 2 needs to be installed on the upper drawer, which is particularly suitable for double-layer drawer structures.

[0027] (2) Drawer divider fit When the drawer has a divider, the lock body 1 is installed on the lower drawer panel, and when closed, the locking tongue 12 directly abuts against the lower edge or side of the drawer divider. This scenario applies to drawers with dividers in the middle.

[0028] (3) Cabinet top panel matching When used in cabinets, the lock body 1 is installed inside the cabinet door, and when closed, the lock tongue 12 directly abuts against the lower edge of the cabinet top panel. Example 2:

[0029] This embodiment provides a child magnetic lock, such as Figure 7-8 As shown, the magnetic lock is equipped with a latch 2. When there is no suitable obstruction surface in the installation environment (such as a large gap between the drawer panel and the cabinet, or the user prefers to use the latch 2), the latch 2 can be used for locking. The latch 2 is provided with a baffle 22, which is used to abut against the push-off force-bearing surface 14 of the bolt 12. When the bolt 12 extends, its push-off force-bearing surface 14 directly abuts against the baffle 22 to achieve locking. There is no need for the bolt 12 to hook into the slot; it only needs to abut to lock, making alignment more convenient and allowing for greater tolerance.

[0030] In this embodiment, to facilitate the positioning and installation of the latch 2, an installation arm 3 is provided between the lock body 1 and the latch 2, which is used to temporarily fix the latch 2 to the lock body 1 when installing the latch 2, so as to assist the positioning of the latch 2.

[0031] Specifically, the mounting arm 3 is integrally formed on the latch 2, and the mounting arm 3 is provided with a mounting post 31. The lock body 1 is provided with a mounting hole 19, and the mounting post 31 can extend into the mounting hole 19 to temporarily fix the latch 2 and the lock body 1. After the latch 2 is installed, the mounting arm 3 can be pressed down and locked in place, or it can be pried off.

[0032] Specifically, the connection between the mounting arm 3 and the latch 2 is a weak structure. After the latch 2 is installed, the user can choose one of the following two processing methods as needed: (1) Press down and retract: Apply external force to press the mounting arm 3 down toward the surface of the latch 2. The mounting arm 3 is attached to the surface of the latch 2 and is fixed by the snap or interference fit. At this time, the mounting arm 3 is still connected to the latch 2 but does not affect the normal locking fit between the lock body 1 and the latch 2. If the latch 2 needs to be disassembled later, the mounting arm 3 can still be lifted up for use. (2) Breaking off: By repeatedly bending or applying greater external force, the mounting arm 3 is broken off from the weak structure, and the mounting arm 3 is broken off from the latch 2 as a whole. After breaking off, the latch 2 is independently installed on the second component without any extra structure.

[0033] Both of the above methods enable the installation arm 3 to be hidden or removed after completing the auxiliary positioning function, avoiding the problem of redundant structure caused by the permanent retention of traditional installation auxiliary structures.

[0034] like Figure 9 As shown, in use, the lock body 1 is glued or screwed into the predetermined position. The latch 2 is temporarily fixed to the lock body 1 via the mounting arm 3: the mounting post 31 at the top of the mounting arm 3 is inserted into the mounting hole 19 on the outer shell 110 of the lock body 1, so that the latch 2 is temporarily hung on the lock body 1. Close the drawer or cabinet door and confirm that the latch 2 and the bolt 12 are correctly aligned. After confirming that the position is correct, glue or screw the latch 2 onto the second component. After the latch 2 is fixed, press the mounting arm 3 down and insert it into the edge of the latch 2 to retract and hide it; or directly use external force to pry the mounting arm 3 off from the base.

[0035] The child magnetic lock exemplified in this embodiment solves the problem of repeated measurement and difficulty in alignment during the installation of traditional latches 2, greatly reducing the difficulty of installation. Users can complete accurate installation without the need for auxiliary brackets or additional tools. Example 3:

[0036] This embodiment provides a method for using a ruler 4 to assist in the installation of the lock body 1.

[0037] like Figure 10 As shown, the latch 2 in this embodiment can adopt the latch 2 structure described in Embodiment 2. The latch 2 is provided with a scale groove 21 for inserting and fixing the scale 4. The scale 4 can be made of a hard material, such as a plastic sheet or a wooden sheet, and has graduations.

[0038] The ruler 4 can be used in the following two ways: (1) Use with the latch: Insert the ruler 4 into the ruler slot 21 of the latch 2 and fix it in place. Then, press one end of the ruler 4 against the inside of the drawer panel and place the other end flat against the lower edge of the partition. Draw a mark on the inside of the drawer. Remove the ruler 4 and the latch 2, and align the upper edge of the lock body 1 with the mark and stick it on. With the help of the ruler 4, the user can accurately locate the installation position of the lock body 1 without complicated measurements. (2) No latch used alone: ​​This method does not require the use of latch 2 and is suitable for the installation scenario of the reverse-push latch 12 described in Example 1. The user can directly hold the ruler 4, place one end of the ruler 4 against the lower edge of the partition plate, and the other end against the inside of the drawer panel, draw a mark line on the inside of the drawer, and then align the upper edge of the lock body 1 with the mark line and stick it on. This method does not require the use of latch 2 and is suitable for the installation scenario of the reverse-push latch 12.

[0039] Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-mentioned technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-mentioned technical features or their equivalent features without departing from the inventive concept. For example, technical solutions formed by substituting the above-mentioned features with technical features disclosed in this application (but not limited to) that have similar functions.

Claims

1. A child magnetic lock, characterized in that, Includes a lock body (1), which is provided with a drive component (11) and a bolt (12) that can move in linkage. The bolt (12) can extend out from the lock body (1) to achieve locking; The driving component (11) is provided with a first magnetic attraction component (13); The latch (12) has a reverse thrust surface (14). The lock body (1) is installed on the first component. When the latch (12) is extended, its reverse thrust surface (14) can directly abut against the blocking surface of the second component, thereby achieving locking between the first component and the second component. There is no need to set a separate latch (2) between the latch (12) and the second component.

2. The child magnetic lock according to claim 1, characterized in that, The lock body (1) includes an outer shell (110) and an inner sleeve (111) fitted inside the outer shell (110).

3. The child magnetic lock according to claim 2, characterized in that, The outer shell (110) is provided with a first support part (113), and the inner sleeve (111) is provided with a second support part (112); the latch (12) is provided with a third support part (121) and a fourth support part (122); when the latch (12) is in the locked state, the reverse force-bearing surface (14) is subjected to force, the third support part (121) abuts against the first support part (113), and the fourth support part (122) abuts against the second support part (112), forming a stable support structure with at least three force-bearing points.

4. The child magnetic lock according to claim 2, characterized in that, The driving component (11) is provided with a driving block (17), and the locking tongue (12) is provided with a slide (18). The driving block (17) slides in the slide, thereby driving the locking tongue (12) to extend or retract. The driving component (11) and the locking tongue (12) are both hinged to the inner sleeve (111) and assembled and fixed inside the outer shell (110).

5. The child magnetic lock according to claim 1, characterized in that, It also includes a sliding button (16), on which a second magnetic member (15) is provided. The second magnetic member (15) is used to attract the first magnetic member (13), thereby putting the driving member (11) in a locked position. The sliding path of the slider (16) is provided with a locking point. When the slider (16) slides to the locking point, the slider (16) is held in that position, and the drive (11) remains in the unlocked position.

6. A child magnetic lock, characterized in that, include: Lock body (1); The latch (2) is used to be installed on the second component. The latch (2) is provided with an installation arm (3) to assist the latch (2) in positioning. The installation arm (3) can be pressed down and locked after the latch (2) is installed, or it can be pried off.

7. The child magnetic lock according to claim 6, characterized in that, The lock body (1) uses the lock body of the child magnetic lock according to any one of claims 1-5.

8. The child magnetic lock according to claim 6, characterized in that, The mounting arm (3) is provided with a mounting post (31), and the lock body (1) is provided with a mounting hole (19). The mounting post (31) can be inserted into the mounting hole (19) to assist in positioning the buckle (2) and the lock body (1) during installation.

9. The child magnetic lock according to claim 6, characterized in that, The latch (2) is provided with a baffle (22) to block the counter-pushing force surface (14) of the latch (12).

10. The child magnetic lock according to claim 6, characterized in that, The latch (2) is provided with a scale groove (21) for inserting and fixing a scale (4) to assist in measuring the installation position of the lock body (1).

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