Safety seat buckle

Abstract

The utility model relates to a kind of safety seat buckles, including plug and socket, socket includes first shell, second shell and unlocking button, locking assembly is equipped between first shell and second shell, the locking assembly includes buckle support, lock tongue and fixed pin, lock tongue is rotatably connected with buckle support, sliding block is equipped between lock tongue and fixed pin, sliding block is slidably connected with lock tongue, fixed pin is connected with sliding block, first elastic piece between sliding block and buckle support is equipped to drive sliding block towards unlocking button movement, fixed pin is attached with unlocking button.The utility model obtains a kind of safety seat buckle, with following advantages: first elastic piece can directly push fixed pin, and work efficiency is high;Sliding block is slidably connected with lock tongue, can prevent fixed pin from driving sliding block to move, sliding block and lock tongue jam, and low machining precision requirement.

Description

Technical Field

[0001] This utility model relates to the field of child safety seat technology, and in particular to a child safety seat buckle. Background Technology

[0002] In the prior art, such as the Chinese Utility Model Patent Publication No. CN214904267U, a child seat latch is disclosed, including a plug and a socket. The socket includes an upper cover, a lower cover, and an unlocking button. A locking assembly is provided between the upper and lower covers. The locking assembly includes a latch bracket, a sliding block, a sliding block compression spring, and a latch tongue. A fixing pin is installed on the latch tongue to drive its movement. When locked, the plug is inserted into the socket, driving the sliding block to move backward, and the rear end of the latch tongue tilts upward. The unlocking button drives the fixing pin, and the fixing pin simultaneously presses the front end of the latch tongue downward to lock the plug. When unlocked, pressing the unlocking button drives the fixing pin to slide backward, and the fixing pin simultaneously drives the front end of the latch tongue to tilt upward to unlock it. However, in this child seat latch, the button spring pushes the unlocking button, and then the unlocking button drives the fixing pin, resulting in low working efficiency. The fixing pin directly drives the latch tongue, requiring high processing precision. Utility Model Content

[0003] One objective of this application is to provide a child safety seat buckle that is highly efficient and has low processing requirements.

[0004] The technical solution adopted in this application is as follows: a safety seat buckle, including a plug and a socket. The socket includes a first housing, a second housing, and an unlocking button. A locking assembly is provided between the first housing and the second housing. The locking assembly includes a buckle bracket, a locking tongue, and a fixing pin. The locking tongue is rotatably connected to the buckle bracket. A sliding block is provided between the locking tongue and the fixing pin. The sliding block is slidably connected to the locking tongue. The fixing pin is connected to the sliding block. A first elastic element is provided between the sliding block and the buckle bracket to drive the sliding block toward the unlocking button. The fixing pin cooperates with the unlocking button.

[0005] Compared with the prior art, the advantages of this application are that the first elastic element can directly push the fixed pin, resulting in high working efficiency; the sliding block and the locking tongue are slidably connected, which can prevent the sliding block and the locking tongue from jamming when the fixed pin drives the sliding block to move, and the machining accuracy requirements are low.

[0006] In some embodiments of this application, the latch bracket is provided with a first slide groove, and the two ends of the fixing pin are located on the first slide groove; the first slide groove includes a rotating section and a locking section, the locking section is located on the side near the unlock button and extends in the horizontal direction.

[0007] In some embodiments of this application, the sliding block is provided with at least one first slide rail, which is sleeved on the locking tongue.

[0008] In some embodiments of this application, the first elastic element is a compression spring, and the buckle bracket is provided with an upwardly bent baffle. One end of the compression spring is in contact with the sliding block, and the other end is in contact with the baffle. The sliding block is provided with a positioning post facing the baffle, and the baffle is provided with a protrusion facing the sliding block. One end of the compression spring is sleeved on the positioning post, and the other end is sleeved on the protrusion.

[0009] In some embodiments of this application, the locking assembly further includes a blocking block for preventing the latch from falling, the blocking block being slidably connected to the latch bracket; a second elastic element is provided between the blocking block and the latch bracket to drive the blocking block to move toward the plug.

[0010] Furthermore, the buckle bracket is provided with a second elongated hole, and a second slide is provided on each of the left and right sides of the blocking block to form an "I" shape. The two second slides are respectively locked on the side walls of the second elongated hole.

[0011] Furthermore, the latch is provided with a second sliding groove. In the locked state, the blocking block is located on the second sliding groove, and in the unlocked state, the top surface of the blocking block is in contact with the bottom surface of the latch.

[0012] Furthermore, the plug includes a first plug and a second plug, the first plug having a first insert and the second plug having a second insert; two blocking blocks are provided, the two blocking blocks respectively cooperating with the first plug and the second plug.

[0013] Furthermore, one of the first plug or the second plug is provided with a first magnet, and the other is provided with a second magnet that cooperates with the first magnet.

[0014] In some embodiments of this application, a signal component is provided between the first housing and the second housing. The signal component includes a circuit board and a trigger switch. The trigger switch is located on the circuit board. In the locked state, the trigger switch engages with the lock tongue. In the unlocked state, the trigger switch is separated from the lock tongue. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model; Figure 2 This is a cross-sectional view of Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the structure of Embodiment 1 of this utility model without the second shell; Figure 4 This is a schematic diagram of the structure of Embodiment 1 of this utility model with the first and second shells removed; Figure 5 This is a left view of Embodiment 1 of the present invention with the first and second shells removed; Figure 6 This is a schematic diagram of the sliding block in Embodiment 1 of this utility model; Figure 7 This is a schematic diagram of the structure of the blocking block in Embodiment 1 of this utility model; Figure 8 This is a structural schematic diagram of the unlocked state of Embodiment 1 of this utility model; Figure 9 This is a structural schematic diagram of Embodiment 2 of the present invention; Figure 10 This is a schematic diagram of the buckle bracket of Embodiment 2 of this utility model; Figure 11 This is a schematic diagram of the locking tongue structure of Embodiment 2 of this utility model; Figure 12 This is a schematic diagram of the sliding block in Embodiment 2 of this utility model.

[0016] In the diagram: 100, plug; 110, first plug; 111, first insert; 120, second plug; 121, second insert; 130, first snap hole; 200, Socket; 201, First housing; 202, Second housing; 203, Unlock button; 300, Locking assembly; 310, Fixing pin; 320, First elastic element; 330, Second elastic element; 400, Buckle bracket; 410, First slide groove; 411, Rotating section; 412, Locking section; 420, Second elongated hole; 430, Side plate; 431, Rotating shaft hole; 432, Snap-in edge; 440, Second buckle hole; 450, Placement hole; 460, Baffle; 461, Protruding plate; 470, Bending part; 471, Through hole; 500, Locking tongue; 510, Second slide rail; 520, First elongated hole; 530, Rotating plate; 540, Mounting hole; 550, Notch; 600, Sliding block; 610, First slide rail; 620, Positioning post; 630, Boss; 700, Blocking block; 710, Second slide rail; 800, Signal assembly; 810, Circuit board; 820, Trigger switch. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0018] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0019] Those skilled in the art should understand that in the disclosure of this application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0020] Example 1: This embodiment provides a child safety seat buckle, such as Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, the device includes a plug 100 and a socket 200. The socket 200 includes a first housing 201, a second housing 202, and an unlock button 203. A locking assembly 300 is provided between the first housing 201 and the second housing 202. The locking assembly 300 includes a latch bracket 400, a latch 500, and a fixing pin 310. The latch 500 is rotatably connected to the latch bracket 400. A sliding block 600 is provided between the latch 500 and the fixing pin 310. The sliding block 600 is slidably connected to the latch 500. The fixing pin 310 is connected to the sliding block 600. A first elastic element 320 is provided between the sliding block 600 and the latch bracket 400 to drive the sliding block 600 toward the unlock button 203. The fixing pin 310 is in contact with the unlock button 203. The plug 100 has a first latch hole 130 that mates with the latch 500; the latch bracket 400 has a pivot hole 431, and the latch 500 has a protruding rotating plate 530 that mates with the pivot hole 431 and rotates within the pivot hole 431.

[0021] The first elastic element 320 can directly push the fixed pin 310, resulting in high working efficiency; the sliding block 600 is slidably connected to the locking tongue 500, which can prevent the sliding block 600 from jamming with the locking tongue 500 when the fixed pin 310 drives the sliding block 600 to move, thus requiring low machining precision.

[0022] To ensure the reliable movement of the retaining pin 310, such as Figure 5As shown, the latch bracket 400 is provided with a first sliding groove 410, and both ends of the fixing pin 310 are located on the first sliding groove 410. The first sliding groove 410 includes a rotating section 411 and a locking section 412. One end of the rotating section 411 and one end of the locking section 412 are connected. The locking section 412 is located on the side near the unlocking button 203 and extends horizontally. The left and right sides of the latch bracket 400 are bent upward to form side plates 430. The first sliding groove 410 and the pivot hole 431 are both located on the side plates 430. The first groove 410 is used to guide and restrict the movement of the fixing pin 310, so that the movement of the fixing pin 310 can drive the movement of the latch 500; the rotating section 411 is used to drive the latch 500 to tilt up or down; the locking section 412 is used to further improve the reliability of locking. When the fixing pin 310 initially moves, it is on the locking section 412, that is, the fixing pin 310 moves in the horizontal direction. The height of the fixing pin 310 does not change, so it will not drive the latch 500 to rotate. This prevents the latch 500 from tilting up when the fixing pin 310 moves in the locked state, thus improving the reliability of locking.

[0023] With the fixed pin 310 in the rotating section 411, the angle between the relative movement direction of the sliding block 600 and the latch bracket 400 and the relative movement direction of the sliding block 600 and the locking tongue 500 is greater than 0° and less than 90°.

[0024] To ensure reliable sliding of the slider 600, such as Figure 6 As shown, the sliding block 600 is provided with at least one first slide rail 610, which is sleeved on the locking tongue 500. In this embodiment, the sliding block 600 has one first slide rail 610 on each of its left and right sides, forming an "I" shape. The locking tongue 500 has a first elongated hole 520. The two first slide rails 610 are respectively engaged on the two side walls of the first elongated hole 520, so the sliding block 600 is engaged on both sides, resulting in high connection reliability and a low probability of the sliding block 600 coming out. One end of the first elongated hole 520 is connected to the outside, facilitating the engagement of the sliding block 600. With the first slide rails 610 engaged on the locking tongue 500, the sliding block 600 and the locking tongue 500 will not change relative in height, ensuring that the fixing pin 310 reliably drives the locking tongue 500 to rotate.

[0025] To ensure the reliability of the first elastic element 320, the first elastic element 320 is a compression spring. The latch bracket 400 is provided with an upwardly bent baffle 460. One end of the compression spring is in contact with the sliding block 600, and the other end is in contact with the baffle 460. The sliding block 600 is provided with a positioning post 620 facing the baffle 460, and the baffle 460 is provided with a protruding plate 461 facing the sliding block 600. One end of the compression spring is sleeved on the positioning post 620, and the other end is sleeved on the protruding plate 461.

[0026] To ensure reliable insertion of the plug 100, the locking assembly 300 further includes a blocking block 700 to prevent the latch 500 from falling. The blocking block 700 is slidably connected to the latch bracket 400. A second elastic element 330 is provided between the blocking block 700 and the latch bracket 400 to drive the blocking block 700 toward the plug 100. The blocking block 700 prevents the latch 500 from falling after the plug 100 is removed, facilitating the next insertion of the plug 100. The slidable connection between the blocking block 700 and the latch bracket 400 allows the plug 100 to slide when inserted, releasing the obstruction of the latch 500. The second elastic element 330 maintains the push on the blocking block 700, so that when the plug 100 is removed, the blocking block 700 moves forward under the push of the second elastic element 330 to block the latch 500.

[0027] To ensure reliable blocking of the sliding of block 700, such as Figure 4 , Figure 7 As shown, the latch bracket 400 is provided with a second elongated hole 420, and a second slide rail 710 is provided on each of the left and right sides of the blocking block 700, forming an "I" shape. The two second slide rails 710 are respectively engaged with the side walls of the second elongated hole 420. The second elongated hole 420 is used to guide and restrict the movement of the blocking block 700. The two sides of the blocking block 700 are engaged with the latch bracket 400 through the second slide rails 710, resulting in high connection reliability and a low probability of the blocking block 700 coming out.

[0028] To ensure reliable release of the blocking block 700, the latch 500 is provided with a second sliding groove 510. In the locked state, the blocking block 700 is located on the second sliding groove 510. In the unlocked state, the top surface of the blocking block 700 is in contact with the bottom surface of the latch 500. The design of the second sliding groove 510 allows the blocking block 700 to enter the second sliding groove 510 after the plug 100 pushes it, thus preventing the blocking block 700 from blocking the latch 500 from falling. The movement of the blocking block 700 on the second sliding groove 510 also limits the insertion of the plug 100, ensuring reliable insertion.

[0029] In this embodiment, the second elastic element 330 is a compression spring, and the latch bracket 400 is provided with a placement hole 450. The placement hole 450 communicates with the second elongated hole 420. The second elastic element 330 is located on the placement hole 450. One end of the second elastic element 330 is connected to the hole wall of the placement hole 450, and the other end is connected to the blocking block 700. The second elastic element 330, the blocking block 700, the second elongated hole 420, the second sliding groove 510, and the placement hole 450 are all arranged symmetrically from left to right.

[0030] The plug 100 includes a first plug 110 and a second plug 120, which are detachably connected. The first plug 110 has a first insert 111, and the second plug 120 has a second insert 121. Two blocking blocks 700 are provided, which respectively cooperate with the first plug 110 and the second plug 120. Only when both the first plug 110 and the second plug 120 are inserted can both blocking blocks 700 be actuated, allowing the locking tongue 500 to drop. The first insert 111 and the second insert 121 are made of hard metal to improve the connection strength.

[0031] To ensure a reliable connection between the first plug 110 and the second plug 120, one of the first plug 110 or the second plug 120 is provided with a first magnet (not shown in the figure), and the other is provided with a second magnet (not shown in the figure) that cooperates with the first magnet. Through the cooperation of the first magnet and the second magnet, the connection between the first plug 110 and the second plug 120 is simple and reliable. In this embodiment, the first plug 110 is provided with a first magnet.

[0032] To ensure reliable insertion of the plug 100, a signal component 800 is provided between the first housing 201 and the second housing 202. The signal component 800 includes a circuit board 810 and a trigger switch 820. The trigger switch 820 is located on the circuit board 810. In the locked state, the trigger switch 820 engages with the latch 500; in the unlocked state, the trigger switch 820 disengages from the latch 500. The circuit board 810 is used to connect external indicator lights, etc. In the locked state, the latch 500 engages with the trigger switch 820, meaning the latch 500 triggers the trigger switch 820. The signal from the trigger switch 820 is transmitted to the external indicator light through the circuit board 810. In the unlocked state, the trigger switch 820 is not triggered, and no signal is transmitted to the external indicator light. By controlling the external indicator light through the signal from the trigger switch 820, the locking status can be observed.

[0033] In this embodiment, one end of the trigger switch 820 is located directly below the second latch hole 440. After the latch 500 is lowered, the latch 500 drives the trigger switch 820.

[0034] In this embodiment, the latch bracket 400 is provided with a second latch hole 440, which is located directly below the first latch hole 130.

[0035] When locked, the plug 100 is inserted into the drive blocking block 700 and moves backward, and the latch 500 falls into the first latch hole 130; when unlocked, the unlock button 203 is pressed, and the unlock button 203 drives the fixing pin 310 to move backward along the first slide groove 410. At the same time, the fixing pin 310 drives the sliding block 600 to move synchronously. The horizontal movement of the sliding block 600 becomes the relative horizontal movement of the sliding block 600 and the latch 500, and the vertical movement of the sliding block 600 becomes the rotation of the latch 500, which in turn drives the latch 500 to lift up and leave the first latch hole 130, and then the plug 100 is pulled out. After the latch 500 is raised, the blocking block 700 disengages from the second slide groove 510. After the plug 100 is pulled out, the blocking block 700 moves forward under the push of the second elastic element 330 and fits against the bottom surface of the latch 500, preventing the latch 500 from falling. Sliding block 600 Example 2: This embodiment provides a child safety seat buckle, such as Figures 9-12 As shown, except that one end of the first elongated hole 520 is not connected to the outside, the other technical features are the same as in Embodiment 1; the sliding block 600 is provided with a boss 630, and the two sides of the boss 630 are recessed inward to form a first slide rail 610. The thickness of the boss 630 in the length direction of the first slide rail 610 is not greater than the diameter of the first elongated hole 520, and the thickness of the boss 630 in the opposite direction of the two first slide rails 610 is greater than the diameter of the first elongated hole 520. That is, the shorter side of the boss 630 can pass through the first elongated hole 520. Then, the sliding block 600 is rotated so that the longer side of the boss 630 is perpendicular to the first elongated hole 520, and the sliding block 600 cannot be dislodged from the first elongated hole 520. At the same time, the first slide rail 610 and the two side walls of the first elongated hole 520 are engaged and locked in place. In this embodiment, the fixing pin 310 passes through the sliding block 600.

[0036] The locking tongue 500 is also provided with a mounting hole 540, which is connected to the first elongated hole 520. The diameter of the mounting hole 540 is larger than that of the first elongated hole 520, so that the boss 630 can rotate at the mounting hole 540 and prevent it from getting stuck with the side walls of the first elongated hole 520 when rotating.

[0037] The buckle bracket 400 has a bent portion 470 at one end near the plug 100. A through hole 471 is provided on the bent portion 470. The through hole 471 is located in front of the second buckle hole 440. The first insert 111 and the second insert 121 pass through the through hole 471 and cooperate with the second buckle hole 440. The design of the bent portion 470 is simple to process and has low requirements for processing accuracy.

[0038] The latch 500 has an inwardly recessed notch 550, which is adjacent to the rotating plate 530. The side plate 430 has a locking edge 432, which is adjacent to the pivot hole 431 and engages with the notch 550. When the latch 500 and the latch bracket 400 are installed opposite each other, the rotating plate 530 on one side of the latch 500 passes through the pivot hole 431, and at the same time, the notch 550 engages with the locking edge 432, allowing the rotating plate 530 on the other side of the latch 500 to enter between the two side plates 430. Then, the rotating plate 530 on the other side of the latch 500 is passed through the pivot hole 431, and the notch 550 disengages from the locking edge 432. After the latch 500 rotates forward to the working position, the notch 550 is blocked on both sides by the side plate 430, which prevents the latch 500 from moving to the sides, ensuring reliable rotation of the latch 500.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A child safety seat buckle, comprising a plug (100) and a socket (200), the socket (200) comprising a first housing (201), a second housing (202) and an unlocking button (203), wherein a locking assembly (300) is provided between the first housing (201) and the second housing (202), characterized in that, The locking assembly (300) includes a latch bracket (400), a latch (500), and a fixing pin (310). The latch (500) is rotatably connected to the latch bracket (400). A sliding block (600) is provided between the latch (500) and the fixing pin (310). The sliding block (600) is slidably connected to the latch (500). The fixing pin (310) is connected to the sliding block (600). A first elastic element (320) is provided between the sliding block (600) and the latch bracket (400) to drive the sliding block (600) toward the unlock button (203). The fixing pin (310) cooperates with the unlock button (203).

2. A safety seat buckle according to claim 1, wherein The latch bracket (400) is provided with a first slide groove (410), and the two ends of the fixing pin (310) are located on the first slide groove (410); the first slide groove (410) includes a rotating section (411) and a locking section (412), the locking section (412) is located on the side near the unlock button (203) and extends in the horizontal direction.

3. A child safety seat buckle according to claim 1, characterized in that, The sliding block (600) is provided with at least one first slide rail (610), which is fitted onto the locking tongue (500).

4. A safety seat buckle according to claim 1, wherein The first elastic element (320) is a compression spring. The latch bracket (400) is provided with an upwardly bent baffle (460). One end of the compression spring is in contact with the sliding block (600), and the other end is in contact with the baffle (460). The sliding block (600) is provided with a positioning post (620) facing the baffle (460), and the baffle (460) is provided with a protruding plate (461) facing the sliding block (600). One end of the compression spring is sleeved on the positioning post (620), and the other end is sleeved on the protruding plate (461).

5. A safety seat buckle according to claim 1, wherein The locking assembly (300) further includes a blocking block (700) for preventing the latch (500) from falling, the blocking block (700) being slidably connected to the latch bracket (400); a second elastic element (330) is provided between the blocking block (700) and the latch bracket (400) to drive the blocking block (700) to move toward the plug (100).

6. A safety seat buckle according to claim 5, wherein The latch bracket (400) is provided with a second elongated hole (420), and a second slide (710) is provided on each of the left and right sides of the blocking block (700) to form an "I" shape. The two second slides (710) are respectively locked on the side walls of the second elongated hole (420).

7. A safety seat buckle according to claim 5, wherein The latch (500) is provided with a second slide groove (510). In the locked state, the blocking block (700) is located on the second slide groove (510). In the unlocked state, the top surface of the blocking block (700) is in contact with the bottom surface of the latch (500).

8. A safety seat buckle according to claim 5, wherein The plug (100) includes a first plug (110) and a second plug (120). The first plug (110) is provided with a first insert (111), and the second plug (120) is provided with a second insert (121). Two blocking blocks (700) are provided, and the two blocking blocks (700) cooperate with the first plug (110) and the second plug (120) respectively.

9. A safety seat buckle according to claim 8, wherein One of the first plug (110) or the second plug (120) is provided with a first magnet, and the other is provided with a second magnet that cooperates with the first magnet.

10. A safety seat buckle according to claim 1, wherein A signal component (800) is provided between the first housing (201) and the second housing (202). The signal component (800) includes a circuit board (810) and a trigger switch (820). The trigger switch (820) is connected to the circuit board (810). In the locked state, the trigger switch (820) cooperates with the lock tongue (500). In the unlocked state, the trigger switch (820) is separated from the lock tongue (500).

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