A child safety lock

Abstract

The utility model provides a kind of child safety lock, belong to the technical field of child safety protection products, mainly solve how to improve the stability when using lock body. A kind of child safety lock, including connecting band and the lock body located at the both ends of connecting band, the connecting band is equipped with several positioning holes, the lock body includes the base and cover body of hinged connection, the base is equipped with positioning latch, the cover body is equipped with the positioning slot matched with positioning latch, the cover body is equipped with clamping spring piece, the base is equipped with clamping block, when the lock body is connected with connecting band, the positioning latch is connected with positioning slot through positioning hole, the cover body is covered on the top of base, and make the clamping spring piece and clamping block clamping connection. By making integrally-formed cover body and base through clamping block and clamping spring piece clamping connection, avoid failure caused by vibration, also can increase the difficulty of child unlocking, further reduce the possibility of child's unconscious unlocking.

Description

Technical Field

[0001] This utility model belongs to the technical field of child safety protection products, and specifically relates to a child safety lock. Background Technology

[0002] In daily life, child safety locks, as a child protection device, are widely used in drawers, cabinets, refrigerators, and other furniture and appliances because they prevent children from opening cabinet doors or drawers out of curiosity and accidentally ingesting dangerous items such as medicines, cleaning agents, and sharp tools. This effectively avoids accidental injuries. Common child safety locks on the market often use a structure combining a connecting strap and a lock body. Two lock bodies are fixed to the protected item and connected by a strap to secure the cabinet door and body, preventing children from opening drawers out of curiosity. However, because the lock body is fixed to the connecting strap using pins, accidental pulling or vibration during use can cause the pin to shift, leading to locking failure. Users cannot easily determine whether the lock is fully closed by sound or touch alone, posing a safety risk due to incomplete closure. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned problems in existing technologies by proposing a child safety lock. The technical problem this utility model aims to solve is: how to improve the stability of the lock body during use.

[0004] The purpose of this utility model can be achieved through the following technical solution: A child safety lock includes a connecting strap and lock bodies located at both ends of the connecting strap. The connecting strap is provided with a plurality of positioning holes. The lock body includes a base and a cover body that are hinged together. The base is provided with a positioning latch, and the cover body is provided with a positioning groove that cooperates with the positioning latch. The lock body is characterized by having a snap-fit ​​spring on the cover body and a snap-fit ​​block on the base body. When the lock body is connected to the connecting strap, the positioning latch passes through the positioning hole and is fixedly connected to the positioning groove. The cover body covers the base and snaps the snap-fit ​​spring on the base body.

[0005] This application, as a child safety lock, uses positioning grooves and positioning latches to fix the lock body to the connecting strip. By clamping the positioning holes at different positions on the connecting strip, the distance between the two lock bodies can be adjusted to adapt to different length requirements. On this basis, one end of the cover with the positioning groove is hinged to the base, and the other end is fixed to the base by snapping a snap-fit ​​spring and snap-fit ​​block. The fixation is achieved by snapping the cover to the base, which not only improves the stability of the fixation and avoids failure caused by vibration, but also increases the difficulty for children to unlock, further reducing the possibility of children unlocking unintentionally.

[0006] In the aforementioned child safety lock, the latching spring is V-shaped and integrally formed with the cover, protruding downwards from the cover. One side of the latching spring is a connecting plate connected to the cover, and the other side is a latching plate. The latching plate is latched to a latching block, and the top of the latching plate extends outwards to form a pressing part. By providing a pressing part at the front end of the latching plate, the contact area is increased, making it easier for the user to open.

[0007] In the aforementioned child safety lock, the base is provided with a clearance groove to provide deformation space for the snap-fit ​​spring. The snap-fit ​​block is located on one side of the clearance groove and snaps into the snap-fit ​​spring. By providing a clearance groove on the base, interference between the snap-fit ​​spring and the base is avoided during engagement and unlocking.

[0008] In the aforementioned child safety lock, the locking block has limiting protrusions on both sides, and the locking spring has locking grooves located on the left and right sides of the locking plate.

[0009] In the aforementioned child safety lock, the cover and the base are integrally formed, and a connecting part is provided between the cover and the base, with a groove provided on the connecting part.

[0010] In the aforementioned child safety lock, the width of the positioning groove is greater than the width of the positioning hole. After the lock body is fixed on the connecting strip, the positioning bolt passes through the positioning hole and is aligned with the positioning groove. The connecting strip is clamped between the base and the positioning groove.

[0011] In the aforementioned child safety lock, an adhesive part is provided on one side of the base.

[0012] Compared with the prior art, the present invention has the following advantages: 1. Based on existing child safety locks, this application uses an integrally molded cover and base as the lock body. By opening a groove at the connection between the two, the cover and base can be hinged together. A snap-fit ​​spring and a snap-fit ​​block are respectively set at the front end of the cover and the base. After the cover is closed on the base, the positioning bolt passes through the positioning hole and cooperates with the positioning groove to clamp the connecting strip between the cover and the base, and the snap-fit ​​spring and the snap-fit ​​block are snapped together to improve the stability of clamping. Attached Figure Description

[0013] Figure 1 This is a 3D illustration of a child safety lock; Figure 2 This is a 3D diagram showing the child safety lock in the open position; Figure 3 This is a three-dimensional schematic diagram of the lock body in its unfolded state; Figure 4 This is a left-side sectional view of the child safety lock; In the diagram, 1 is the connecting strip; 1a is the positioning hole; 2 is the lock body; 2a is the base; 2a1 is the positioning latch; 2a2 is the snap-fit ​​block; 2a2a is the limiting protrusion; 2a3 is the clearance groove; 2a4 is the adhesive part; 2b is the cover; 2b1 is the positioning groove; 2b2 is the snap-fit ​​spring; 2b2a is the connecting plate; 2b2b is the snap-fit ​​plate; 2b2c is the pressing part; 2b2d is the snap-fit ​​groove; 2c is the connecting part; and 2c1 is the groove. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figure 1 As shown, a child safety lock includes a connecting strap 1 and two lock bodies 2. The two lock bodies 2 are located at both ends of the connecting strap 1. The connecting strap 1 has a plurality of positioning holes 1a, which are evenly arranged along the length of the connecting strap 1. The lock body 2 includes a cover 2b and a base 2a. The cover 2b is located above the base 2a, and the front end of the cover 2b is provided with a snap-fit ​​spring 2b2. The front end of the snap-fit ​​spring 2b2 is provided with a pressing part 2b2c. The front end of the base 2a is provided with a snap-fit ​​block 2a2, which corresponds to and is snap-fitted to the snap-fit ​​spring.

[0016] like Figure 2 As shown, the lock body 2 includes a cover 2b and a base 2a. The cover 2b and the base 2a are integrally formed and connected by a connecting part 2c. The base 2a is provided with a mounting groove, and a positioning latch 2a1 is provided at the bottom of the mounting groove. One end of the connecting band 1 is placed on the mounting groove, and the positioning hole 1a on the connecting band 1 is installed on the positioning latch 2a1. The front end of the base 2a is provided with a snap-fit ​​block 2a2 and a clearance groove 2a3. The clearance groove 2a3 is located on the snap-fit ​​block 2a2. The cover 2b is provided with a positioning groove 2b1, which protrudes downward relative to the cover 2b. The front end of the cover 2b is provided with a V-shaped snap-fit ​​spring piece 2b2. The snap-fit ​​spring piece 2b2 includes a snap-fit ​​plate 2b2b located at the front end. The snap-fit ​​plate 2b2b includes snap-fit ​​grooves 2b2d located on both sides. The top of the snap-fit ​​plate 2b2b is provided with a pressing part 2b2c.

[0017] like Figure 3As shown, the cover 2b and the base 2a are connected by a connecting part 2c. The connecting part 2c, the cover 2b and the base 2a are integrally formed. The connecting part 2c is provided with a slot. The front end of the cover 2b has a V-shaped snap-fit ​​spring piece 2b2, which includes a connecting plate 2b2a and a snap-fit ​​plate 2b2b. The top of the connecting plate 2b2a is connected to the cover 2b. The top of the snap-fit ​​plate 2b2b is provided with a pressing part 2b2c. The pressing part 2b2c is provided with snap-fit ​​grooves 2b2d on both sides. The base 2a is provided with a relief groove 2a3. One end of the relief groove 2a3 is provided with a snap-fit ​​block 2a2. The snap-fit ​​block 2a2 is provided with a limiting protrusion 2a2a. The limiting protrusion 2a2a and the snap-fit ​​grooves 2b2d on both sides of the snap-fit ​​plate 2b2b are connected.

[0018] like Figure 4 As shown, the cover 2b of the lock body 2 is mounted on the base 2a. The connecting band 1 is located in the middle of the lock body 2. The size of the positioning groove 2b1 is larger than the size of the positioning hole 1a. The positioning latch 2a1 on the base 2a passes through the positioning hole 1a on the connecting band 1 and engages with one end of the positioning groove 2b1. The snap-fit ​​spring 2b2 is located at the front end of the cover 2b, and the snap-fit ​​block 2a2 is located at the front end of the base 2a. The front side of the snap-fit ​​block 2a2 is provided with an avoidance groove 2a3. The snap-fit ​​spring 2b2 is V-shaped and snaps... The spring clip 2b2 includes a connecting plate 2b2a and a snap-fit ​​plate 2b2b. The connecting plate 2b2a is used to connect the snap-fit ​​plate 2b2b to the cover 2b integrally. The top of the snap-fit ​​plate 2b2b is provided with a pressing part 2b2c, which extends outward by one end. The connection between the connecting plate 2b2a and the snap-fit ​​plate 2b2b is located in the relief groove 2a3. The snap-fit ​​plate 2b2b is snap-fitted to the snap-fit ​​block 2a2. The other side of the base 2a of this application is provided with an adhesive part 2a4. It is worth mentioning that setting the snap-fit ​​spring clip 2b2 and the snap-fit ​​block 2a2 at the front end is only one embodiment of this application. As an alternative, the snap-fit ​​spring clip 2b2 and the snap-fit ​​block 2a2 can be set in other positions.

[0019] In summary, based on existing child safety locks that use a positioning pin to connect the cover 2b and the base 2a to secure the connecting strap 1, this application, to prevent the positioning pin from shifting due to impacts when the cabinet moves or one end of the positioning pin is hung outside the lock body 2, thus causing the lock body 2 to malfunction, adopts an integrated lock body 2. By providing a connecting part 2c between the cover 2b and the base 2a, and creating a groove 2c 1 on the connecting part 2c, the cover 2b can rotate around the connecting part 2c and cover the base 2a. This simplifies the structure. Furthermore, snap-fit ​​springs 2b2 and snap-fit ​​blocks 2a2 are respectively provided at the front ends of the cover 2b and the base 2a. When the cover 2b is closed on top of the base 2a, the top of the positioning latch 2a1 passing through the positioning hole 1a engages with the positioning groove 2b1, clamping the connecting strap 1 between the cover 2b and the base 2a, thereby securing it. Based on this... By pushing the pressing part 2b2c downwards, the bottom of the V-shaped snap-fit ​​spring piece 2b2 enters the clearance groove 2a3, and the snap-fit ​​plate 2b2b and snap-fit ​​block 2a2 on the snap-fit ​​spring piece 2b2 engage with the limiting protrusion 2a2a through the snap-fit ​​groove 2b2d, thereby achieving a snap-fit ​​connection between the cover 2b and the base 2a. This improves the stability of the locking between the cover 2b and the base 2a, preventing relative displacement between the cover 2b and the base 2a during vibration or other impacts. Regarding the engagement between the snap-fit ​​spring 2b2 and the snap-fit ​​block 2a2, the user pushes the pressing part 2b2c, causing elastic deformation at the connection between the snap-fit ​​plate 2b2b and the connecting plate 2b2a. When the bottom end of the snap-fit ​​spring 2b2 enters the relief groove 2a3, the limiting protrusion 2a2a on the snap-fit ​​block 2a2 engages with the snap-fit ​​grooves 2b2d on both sides of the snap-fit ​​plate 2b2b. Utilizing the force generated by the elastic deformation between the connecting plate 2b2a and the snap-fit ​​plate 2b2b, the limiting protrusion 2a2a and the snap-fit ​​grooves 2b2d on both sides of the snap-fit ​​plate 2b2b abut against each other and remain tightly fitted, thereby improving the stability of the engagement. Furthermore, during use, since a large force is required to cause the snap-fit ​​spring 2b2 to deform elastically, children without safety awareness cannot force the snap-fit ​​spring 2b2 to deform, thus preventing the safety lock from opening and further avoiding the risk of safety hazards due to incomplete closure.

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0021] Although this document frequently uses terms such as 1. connecting strip; 1a. positioning hole; 2. lock body; 2a. base; 2a1. positioning latch; 2a2. snap-fit ​​block; 2a2a. limiting protrusion; 2a3. clearance groove; 2a4. adhesive part; 2b. cover; 2b1. positioning groove; 2b2. snap-fit ​​spring; 2b2a. connecting plate; 2b2b. snap-fit ​​plate; 2b2c. pressing part; 2b2d. snap-fit ​​groove; 2c. connecting part; 2c1. groove, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A child safety lock, comprising a connecting strap (1) and lock bodies (2) located at both ends of the connecting strap (1), wherein the connecting strap (1) is provided with a plurality of positioning holes (1a), the lock body (2) comprises a base (2a) and a cover (2b) hinged together, the base (2a) is provided with a positioning latch (2a1), and the cover (2b) is provided with a positioning groove (2b1) that cooperates with the positioning latch (2a1), characterized in that, The cover (2b) is provided with a snap-fit ​​spring piece (2b2), and the base (2a) is provided with a snap-fit ​​block (2a2). When the lock body (2) is connected to the connecting band (1), the positioning latch (2a1) passes through the positioning hole (1a) and is fixedly connected to the positioning groove (2b1). The cover (2b) covers the base (2a) and makes the snap-fit ​​spring piece (2b2) ​​snap-fit ​​connected to the snap-fit ​​block (2a2).

2. The child safety lock according to claim 1, characterized in that, The snap-fit ​​spring (2b2) ​​is V-shaped and integrally formed with the cover (2b), protruding downward from the cover (2b). One side of the snap-fit ​​spring (2b2) ​​is a connecting plate (2b2a) connected to the cover (2b), and the other side of the snap-fit ​​spring (2b2) ​​is a snap-fit ​​plate (2b2b). The snap-fit ​​plate (2b2b) is snap-fitted to the snap-fit ​​block (2a2), and the top of the snap-fit ​​plate (2b2b) extends outward a certain distance to form a pressing part (2b2c).

3. The child safety lock according to claim 1, characterized in that, The base (2a) is provided with a relief groove (2a3) to provide deformation space for the snap-fit ​​spring (2b2). The snap-fit ​​block (2a2) is located on one side of the relief groove (2a3) and is snap-fit ​​connected to the snap-fit ​​spring (2b2).

4. The child safety lock according to claim 2 or 3, characterized in that, The latching block (2a2) has limiting protrusions (2a2a) on both sides, and the latching spring (2b2) ​​has a latching groove (2b2d) on its left and right sides.

5. The child safety lock according to claim 1, characterized in that, The cover (2b) and the base (2a) are integrally formed, and a connecting part (2c) is provided between the cover (2b) and the base (2a), and a groove (2c1) is provided on the connecting part (2c).

6. The child safety lock according to claim 1, characterized in that, The width of the positioning groove (2b1) is greater than the width of the positioning hole (1a). When the lock body (2) is fixed on the connecting band (1), the positioning latch (2a1) passes through the positioning hole (1a) and is connected to the positioning groove (2b1). The connecting band (1) is sandwiched between the base (2a) and the positioning groove (2b1).

7. The child safety lock according to claim 1, characterized in that, The base (2a) has an adhesive part (2a4) on one side.

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