Multifunctional child safety lock

Abstract

The present invention discloses a multifunctional child safety lock, which mainly relates to the technical field of safety locks. It includes: a base, a button, a pressing spring, a positioning block, a limiting body, and a torsion spring; the base is connected to the positioning block through a first buckle; one end of the pressing spring abuts against the button, and the other end abuts against the positioning block; the button is connected to the positioning block through a second buckle; a positioning groove adapted to the second buckle is provided at the bottom of the positioning block; a locking block is provided on one side of the top of the base, and a locking groove adapted to the locking block is provided in the limiting body; one end of the torsion spring is connected to the limiting body, and the other end is connected to the base. The beneficial effects of the present invention are: it adopts a design that can only be opened in a double-channel manner, and the opening requires two steps, and double protection against opening can make the lock safer and more reliable, and can be locked with one key, and can be automatically locked by simply pressing a button, which is convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of safety locks, in particular to a multifunctional safety lock for children. Background Art

[0002] In residential or other living spaces, there are generally cabinets, drawers, gas stoves, ovens, steamers, electronic touch buttons and other structures that can be opened by rotating, pressing, pulling or touching. The above-mentioned opening structures are extremely convenient to use, but there are some potential dangers for children or young children. For example, when children open cabinet doors, drawers, etc. at home without authorization, they will inevitably rummage through items and may sometimes accidentally ingest or misuse dangerous medicines; when children turn on the gas switch without authorization, it may cause unnecessary dangers such as gas poisoning, fire, and burns; when children open the oven or steamer door, it may cause dangers such as burns; when children open or close some electronic touch buttons, it may cause unknown dangers or losses.

[0003] To solve the above problems, there are many child safety locks on the market, but most of them are designed for a certain opening structure, with relatively single functions and cannot be used in many occasions. Moreover, it only takes one step to open this type of child safety lock, which is relatively simple. However, it has great disadvantages and can be easily cracked and opened by children, thus losing the original purpose of the protection lock. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to provide a multifunctional child safety lock which is easy to use, safe and reliable and has a wide range of applications. The design adopts a double-channel method to open the lock, which requires two steps to open and has double protection against opening, making the lock safer and more reliable. The lock can be locked with one button. Just press the button lightly to automatically lock the lock, which is easy to use.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A multifunctional child safety lock comprises: a base, a button, a pressing spring, a positioning block, a limiting body, and a torsion spring; the positioning block is installed on the top of the limiting body; the base is located on the lower side of the limiting body, and the base is connected to the positioning block through a first buckle; one end of the pressing spring abuts against the button, and the other end abuts against the positioning block; the button is connected to the positioning block through a second buckle; a positioning groove adapted to the second buckle is provided at the bottom of the positioning block; a locking block is provided on one side of the top of the base, and a locking groove adapted to the locking block is provided in the limiting body; the torsion spring is located inside the limiting body, and one end of the torsion spring is connected to the limiting body, and the other end is connected to the base.

[0007] Preferably, the number of the first buckles and the number of the second buckles are both two, and the two second buckles are located between the two first buckles. The number of the positioning grooves is four and they are evenly arranged at the bottom of the positioning block.

[0008] Preferably, the second buckle is located on the inner side of the pressing spring and passes through the pressing spring, and the hook claw on the second buckle is connected to the positioning groove.

[0009] Preferably, a first mounting hole adapted to the button is vertically provided on the positioning block, the first mounting hole vertically penetrates the positioning block, the button is slidably connected to the first mounting hole, a first annular clamping plate adapted to the first buckle is provided at the bottom of the first mounting hole, and a hook claw on the first buckle is located on the upper side of the first annular clamping plate and abuts against the upper surface of the first annular clamping plate;

[0010] Preferably, both left and right ends of the positioning block are provided with limit blocks, and the top of the limit body is provided with a sliding groove adapted to the limit blocks.

[0011] Preferably, a second mounting hole adapted for the positioning block is provided at the left end of the limiting body, the second mounting hole vertically passes through the limiting body, a support portion adapted for the positioning block is provided on the inner wall of the second mounting hole, the positioning block can move left and right in the second mounting hole and the amplitude of the left and right movement of the positioning block in the second mounting hole is not less than the depth of the locking block inserted into the locking groove.

[0012] Preferably, a sticker is provided on the bottom surface of the base.

[0013] Preferably, the right end of the limiting body is provided with an inclined surface extending downward.

[0014] Preferably, one end of the torsion spring is provided with a first hook clamped on the first buckle, and an annular connecting portion surrounding the two first buckles, the end of the torsion spring away from the first hook is provided with a second hook, the limiting body is provided with a connecting column adapted to the second hook, and the top of the base is provided with an arc-shaped guide block adapted to the connecting column.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The assembly of the present invention adopts a snap-on structure, and the assembly process is simple, the cost is low, and the reliability is high. The present invention can be applied to cabinets, drawers, gas stoves, ovens, steamers, electronic touch buttons, etc. to prevent accidental opening, and has two states: locked and unlocked. When in use, the base is fixed at the place of use, and the locked state is: the second snap on the button abuts against the first snap on the base, which can prevent the button and the base from rotating relative to each other, and the hook claw on the second snap is inserted into the positioning groove, which can prevent the positioning block and the button from rotating relative to each other, and prevent the limiting body from rotating, thereby achieving the protective function of obstructing objects, and the locking block on the base is inserted into the locking groove of the limiting body, which can also prevent the limiting body and the base from rotating relative to each other, thereby achieving the function of double protection against opening.

[0017] The unlocking step is divided into two steps. The first step of unlocking is: press the button down to separate the hook on the second buckle from the positioning groove, release the connection between the button and the positioning block and the limiting body, and there is no restriction. However, since there is still an obstruction between the locking block on the base and the locking groove of the limiting body, the limiting body cannot be rotated to achieve the unlocking function. The second step of unlocking is: while pressing the button down, push the limiting body so that the locking block on the base slides out of the locking groove of the limiting body. By removing the obstruction between the locking block on the base and the locking groove of the limiting body, all restrictions of the present invention can be released. Then rotate the limiting body to achieve unlocking.

[0018] One-button locking steps: After unlocking, due to the action of the pressing spring, after the button is released, the button rebounds, and the hook on the second buckle is again engaged in the positioning groove to prevent the limit body from rotating. When the button is pressed down again, the restriction of the hook on the second buckle and the positioning groove is released, and the limit body will automatically rotate into place under the action of the torsion spring to achieve the locking effect again.

[0019] The invention has the characteristics of being easy to use, safe and reliable, and having a wide range of applications. It requires two steps to open, and has double protection against opening, which can make the lock safer and more reliable. It can be locked with one key. Just press the button lightly to automatically lock, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attached Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Attached Figure 2 is an exploded view of the present invention;

[0022] Attached Figure 3 It is a schematic diagram of the structure of the base;

[0023] Attached Figure 4 It is a top view of the base;

[0024] Attached Figure 5 It is a schematic diagram of the connection structure between the base and the torsion spring;

[0025] Attached Figure 6 Yes Figure 5 A top view of

[0026] Attached Figure 7 It is a schematic diagram of the structure of a torsion spring;

[0027] Attached Figure 8 It is a schematic diagram of the button structure;

[0028] Attached Fig. 9 It is a structural diagram of the positioning block;

[0029] Attached Fig.10 It is a structural schematic diagram of the limiting body;

[0030] Attached Fig.11 is a schematic diagram of the structure of the components in the second mounting hole in the locked state;

[0031] Attached Fig.12 It is a schematic diagram of the internal structure of the limit body in the locked state;

[0032] Attached Fig.13 is a schematic diagram of the structure of the components in the second mounting hole during unlocking step 1;

[0033] Attached Fig.14 is a schematic diagram of the internal structure of the limit body during the unlocking step 1;

[0034] Attached Fig.15 It is a schematic diagram of the internal structure of the limiter body during the second unlocking step;

[0035] Attached Fig.16 It is a schematic diagram of the locked state of the present invention applied to an electronic touch button;

[0036] Attached Fig.17 It is a schematic diagram of the unlocking state of the present invention applied to an electronic touch button;

[0037] Attached Fig.18 It is a schematic diagram of the locked state of the present invention applied to the knob switch of a gas stove;

[0038] Attached Fig.19 It is a schematic diagram of the unlocking state of the present invention applied to the knob switch of a gas stove;

[0039] Attached Fig. 20 It is a schematic diagram of the locked state of the present invention applied to an oven;

[0040] Attached Fig.21 Schematic diagram of the unlocking state of the present invention applied to an oven;

[0041] Attached Fig. 22 This is a schematic diagram of the locked state of the present invention applied to a drawer;

[0042] Attached Fig.23 It is a schematic diagram of the unlocking state of the present invention applied to a drawer.

[0043] Numbers in the attached drawings:

[0044] 1. Base; 11. First buckle; 12. Locking block; 13. Arc guide block;

[0045] 2. button; 21. second buckle;

[0046] 3. Press the spring;

[0047] 4. Positioning block; 41. Positioning groove; 42. First mounting hole; 43. First annular clamping plate; 44. Limiting block; 45. End cover;

[0048] 5. Position limiting body; 51. Locking groove; 52. Sliding groove; 53. Second mounting hole; 54. Supporting part; 55. Connecting column;

[0049] 6. Torsion spring; 61. First hook; 62. Annular connecting portion; 63. Second hook.

[0050] 71. Electronic touch button; 72. Gas stove knob; 73. Knob fixing seat; 74. Oven; 75. Drawer. DETAILED DESCRIPTION

[0051] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0052] Example: As shown in the attached Figure 1 , 2 As shown, the present invention is a child multifunctional safety lock, comprising: a base 1, a button 2, a pressing spring 3, a positioning block 4, a limiting body 5, and a torsion spring 6. The base 1, the button 2, the positioning block 4, and the limiting body 5 can all be made of plastic material. Specifically:

[0053] As attached Figure 3 , 4As shown, the base 1 can be disc-shaped or in other shapes, and a first buckle 11 extending upward is symmetrically provided on the top of the base 1 with the vertical plane where the center line of the base 1 is located as the symmetry plane, and the hook of the first buckle 11 is located on the outside of the top of the first buckle, and a locking block 12 is provided at the left end of the top of the base 1. The base 1 can be fixed to an opening structure such as rotating to open, pressing to open, pulling to open, and touching to open by screws. Preferably, in order to facilitate the installation of the present invention, a self-adhesive sticker is provided on the bottom surface of the base 1, and the base 1 can be bonded to the opening structure.

[0054] As attached Figure 8 As shown, the button 2 can be in a disc shape, and a second buckle 21 extending downward is symmetrically provided at the bottom of the button 2 with the vertical plane where the center line of the button 2 is located as the symmetry plane, and the hook claw of the second buckle 21 is located on the outside of the bottom of the second buckle 21. After the assembly of the present invention is completed, the second buckle 21 is located between the two first buckles 11, and one side end face of the second buckle 21 abuts against one of the first buckles 11, and the other side end face abuts against the other first buckle 11.

[0055] As attached Fig.12 As shown, the top end of the pressing spring 3 abuts against the bottom surface of the button 2 , the second buckle 21 is located inside the pressing spring 3 and passes through the pressing spring 3 , and the hook on the second buckle 21 is connected to the positioning groove 41 .

[0056] As attached Fig. 9 As shown, a first mounting hole 42 adapted to the button 2 is vertically provided on the positioning block 4, the first mounting hole 42 vertically penetrates the positioning block 4, the button 2 is slidably connected to the first mounting hole 42, the button 2 can slide up and down in the first mounting hole 42, a first annular clamping plate 43 adapted to the first buckle 11 is provided at the bottom of the first mounting hole 42, the first annular clamping plate 43 and the positioning block 4 adopt an integrated structure, the hook claw on the first buckle 11 is located on the upper side of the first annular clamping plate 43 and abuts against the upper surface of the first annular clamping plate 43; the bottom end of the pressing spring 3 is in contact with the first annular clamping plate The upper surface of 43 abuts, the bottom annular array of the positioning block 4 is provided with four positioning grooves 41 adapted to the hook claws of the second buckle 21, the hook claws on the two second buckles 21 always occupy two of the four positioning grooves 41, and after the positioning block 4 rotates 90° with the limiting body 5, the hook claws on the second buckle 21 are snapped into the corresponding positioning grooves 41, and the left and right ends of the positioning block 4 are provided with limit blocks 44, and the left and right ends of the positioning block 4 are provided with limit blocks 44. Furthermore, in order to protect the components in the second mounting hole, the top of the positioning block 4 is provided with an end cover 45 adapted to the second mounting hole 53.

[0057] As attached Fig.10As shown, the right end of the limiting body 5 is the limiting functional part, and the left end of the limiting body 5 is provided with a second mounting hole 53 adapted to the positioning block 4, and the second mounting hole 53 vertically penetrates the limiting body 5, and the inner wall of the second mounting hole 53 is provided with a supporting part 54 adapted to the positioning block 4, and the supporting part 54 is an annular plate, and an integrated structure is adopted between the supporting part 54 and the limiting body 5, and the bottom surface of the positioning block 4 abuts against the top surface of the supporting part 54, and a locking groove 51 adapted to the locking block 12 is provided on the left side wall of the bottom of the second mounting hole 53, and the locking block 12 is slidably connected to the locking groove 51, and a sliding groove 52 adapted to the limiting block 44 is provided on the side wall of the top of the limiting body 5, and the limiting block 44 is slidably connected to the sliding groove 52. The positioning block 4 can move left and right in the second mounting hole 53, and the range of movement of the positioning block 4 in the first mounting hole 53 is not less than the depth of the locking block 12 inserted into the locking groove 51. The positioning block 4, the base 1, the button 2, and the pressing spring 3 are connected by snaps to form an assembly, and the assembly and the limiting body 5 can move relative to each other. Fig.15 As shown, the assembly consisting of the positioning block 4, the base 1, the button 2, and the pressing spring 3 is kept stationary. When the limiting body 5 is moved to the left, the locking block 12 can be pulled out from the locking groove 51. When the limiting body 5 is moved to the right, the locking block 12 can be inserted into the locking groove 51.

[0058] The torsion spring 6 is located in the second mounting hole 53, and one end of the torsion spring 6 is connected to the limiting body 5, and the other end is connected to the base 1. Further, in order to facilitate the installation of the torsion spring, as shown in the attached Figure 6 , 7 As shown, one end of the torsion spring 6 is provided with a first hook 61 clamped on the first buckle 11, and an annular connecting portion 62 surrounding the two first buckles 11, and the end of the torsion spring 6 away from the first hook 61 is provided with a second hook 63, and the limiting body 5 is provided with a connecting column 55 adapted to the second hook 63 (as shown in the attached Fig.12 As shown in FIG. 1 , the top of the base 1 is provided with an arc-shaped guide block 13 adapted to the connecting column 55. When the lock is locked with one key, the arc-shaped guide block 13 provides a guide for the sliding of the connecting column 55. The connection diagram of the torsion spring 6 and the base 1 is shown in FIG. Figure 5 , 6 shown.

[0059] Further, in order to increase the applicability of the present invention, the right end of the limiting body 5 is provided with an inclined surface extending downward, as shown in the attached Fig.18 As shown, when the present invention is applied to the gas stove knob 72, the best installation position can be obtained by adjusting the distance between the present invention and the gas stove knob 72 according to the height of the gas stove knob 72, so that the inclined surface of the limiting body 5 abuts against the lower surface of the gas stove knob 72, thereby ensuring the effectiveness of the limiting.

[0060] Furthermore, in order to standardize the use of the present invention, operation marks may be set on the limiting body 5, including a rotation direction arrow and a push direction arrow.

[0061] The assembly of the present invention adopts a snap-on structure with low cost. During assembly, one end of the torsion spring 6 is installed on the base 1, and then the first snap 11 is inserted from the bottom of the second mounting hole 53, and the other end of the torsion spring 6 is clamped on the inner wall of the second mounting hole 53, and the limiting body 5 is pushed so that the locking block 12 is inserted into the locking groove 51, and then the positioning block 4 is inserted from the top of the second mounting hole 53 and pressed downward so that the hook claw of the first snap 11 is clamped on the first annular clamping plate 43. When installing the positioning block 4, it should be ensured that the limiting block 44 is inserted into the slide groove 52, and then the pressing spring 3 is inserted from the top of the first mounting hole 42, and then the second snap 21 is inserted into the pressing spring 3 and the button 2 is pressed downward so that the hook claw on the second snap 21 is clamped into the positioning groove 41, and the assembly is completed. The assembly process is simple and the reliability is high.

[0062] The present invention has two states: locked and unlocked. When in use, the base 1 is first fixed at the place of use.

[0063] Lock status: As attached Fig.11 , 12 The second buckle 21 on the button 2 is located between the two first buckles 11 on the base 1, which can prevent the button 2 and the base 1 from rotating relative to each other. The hook on the second buckle 21 is inserted into the positioning groove 41, which can prevent the positioning block 4 and the button 2 from rotating relative to each other. The limit block 44 on the positioning block 4 is inserted into the slide groove 52, which can prevent the positioning block 4 and the limit body 5 from rotating relative to each other, and can fix the position of the limit body 5 to prevent the limit body 5 from rotating, thereby achieving the protective function of obstructing objects. The locking block 12 on the base 1 is inserted into the locking groove 51 of the limit body 5, which can also prevent the limit body 5 and the base 1 from rotating relative to each other, thereby achieving a double protection anti-opening function.

[0064] The unlocking process consists of two steps, as shown in the attached Fig.13 , 14 The first step of unlocking is: press the button 2 downward so that the hook on the second buckle 21 is separated from the positioning groove 41, and the connection between the button 2 and the positioning block 4 and the limiting body 5 is released, and there is no restriction. However, since there is still an obstruction between the locking block 12 on the base 1 and the locking groove 51 of the limiting body 5, the limiting body 5 cannot be rotated to achieve the unlocking function; as shown in the attached Fig.15 The second unlocking step is: while pressing the button 2, push the limiting body 5 so that the locking block 12 on the base 1 slides out of the locking groove 51 of the limiting body 5. By removing the obstruction between the locking block 12 on the base 1 and the locking groove 51 of the limiting body 5, all restrictions can be released, and then the limiting body 5 can be rotated to achieve unlocking.

[0065] One-button locking steps: after unlocking, due to the action of the pressing spring 3, after the button 2 is released, the button 2 rebounds and the hook claw on the second buckle 21 is again inserted into the positioning groove 41 to prevent the limiting body 5 from rotating. When the button 2 is pressed down again, the restriction of the hook claw on the second buckle 21 and the positioning groove 41 is released, and the limiting body 5 will automatically rotate into place under the action of the torsion spring 6 to achieve the locking effect again.

[0066] The present invention can be applied to cabinets, drawers, gas stoves, ovens, steamers, electronic touch buttons, etc. to prevent accidental opening. Some of the application scenarios are as follows:

[0067] When applied to electronic touch buttons, such as the attached Fig.16 , 17 As shown, the present invention is installed at the electronic touch button 71. When locking, the electronic touch button 71 is covered by the limiting body 5. When unlocking, the limiting body 5 is rotated 90°;

[0068] When used in the gas stove knob switch, such as the attached Fig.18 , 19 As shown, the present invention is installed on one side of the knob fixing seat 73. When locked, the inclined surface on the limiting body 5 abuts against the bottom surface of the gas stove knob 72, and the gas stove knob 72 cannot be pressed to ignite. When unlocked, the limiting body 5 is rotated 90°;

[0069] When used in ovens, Fig. 20 , 21 As shown, the present invention is installed on the door frame of an oven 74. When locking, the limiting body 5 blocks the oven door. When unlocking, the limiting body 5 is rotated 90°;

[0070] If it is on the drawer, Fig. 22 , 23 As shown, the present invention is installed on the upper side of the drawer 75. When locking, the limiting body 5 is stuck in the main drawer 75. When unlocking, the limiting body 5 is rotated 90 degrees.

[0071] The invention has the characteristics of being easy to use, safe and reliable, and having a wide range of applications. It requires two steps to open, and has double protection against opening, which can make the lock safer and more reliable. It can be locked with one key. Just press the button lightly to automatically lock, and it is easy to use.

Claims

1. Multifunctional child safety lock, characterized in that: include: Base (1), button (2), pressing spring (3), positioning block (4), limiting body (5), torsion spring (6); The positioning block (4) is installed on the top of the limiting body (5); The base (1) is located at the lower side of the limiting body (5), and the base (1) is connected to the positioning block (4) via a first buckle (11); One end of the pressing spring (3) abuts against the button (2), and the other end abuts against the positioning block (4); The button (2) is connected to the positioning block (4) via a second buckle (21); The bottom of the positioning block (4) is provided with a positioning groove (41) adapted to the second buckle (21); A locking block (12) is provided on one side of the top of the base (1), and a locking groove (51) adapted to the locking block (12) is provided in the limiting body (5); The torsion spring (6) is located inside the limiting body (5), one end of the torsion spring (6) is connected to the limiting body (5), and the other end is connected to the base (1); The number of the first buckles (11) and the number of the second buckles (21) are both two, and the two second buckles (21) are both located between the two first buckles (11); the number of the positioning grooves (41) is four and they are evenly arranged at the bottom of the positioning block (4); A second mounting hole (53) adapted to the positioning block (4) is provided at the left end of the limiting body (5); the second mounting hole (53) vertically penetrates the limiting body (5); a supporting portion (54) adapted to the positioning block (4) is provided on the inner wall of the second mounting hole (53); the positioning block (4) can move leftward and rightward in the second mounting hole (53); and the amplitude of the leftward and rightward movement of the positioning block (4) in the second mounting hole (53) is not less than the depth of the locking block (12) inserted into the locking groove (51).

2. The multifunctional child safety lock according to claim 1, characterized in that: The second buckle (21) is located on the inner side of the pressing spring (3) and passes through the pressing spring (3), and the hook claw on the second buckle (21) is connected to the positioning groove (41).

3. The multifunctional child safety lock according to claim 1, characterized in that: The positioning block (4) is vertically provided with a first mounting hole (42) adapted to the button (2); the first mounting hole (42) vertically penetrates the positioning block (4); the button (2) is slidably connected to the first mounting hole (42); a first annular clamping plate (43) adapted to the first buckle (11) is provided at the bottom of the first mounting hole (42); a hook claw on the first buckle (11) is located on the upper side of the first annular clamping plate (43) and abuts against the upper surface of the first annular clamping plate (43).

4. The multifunctional child safety lock according to claim 1, characterized in that: The left and right ends of the positioning block (4) are both provided with limiting blocks (44), and the top of the limiting body (5) is provided with a sliding groove (52) adapted to the limiting block (44).

5. The multifunctional child safety lock according to claim 1, characterized in that: The bottom surface of the base (1) is provided with a self-adhesive sticker.

6. The multifunctional child safety lock according to claim 1, characterized in that: The right end of the limiting body (5) is provided with an inclined surface extending downward.

7. The multifunctional child safety lock according to claim 1, characterized in that: One end of the torsion spring (6) is provided with a first hook (61) clamped on the first buckle (11), and an annular connecting portion (62) surrounding the two first buckles (11); one end of the torsion spring (6) away from the first hook (61) is provided with a second hook (63); the limiting body (5) is provided with a connecting column (55) adapted to the second hook (63); and the top of the base (1) is provided with an arc-shaped guide block (13) adapted to the connecting column (55).

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