Seat connecting assembly and safety seat

Abstract

The seat connecting assembly comprises a sleeve, a connector and a displayer, the first end of the connector is installed in the sleeve in a sliding mode, the second end of the connector is suitable for being connected with a vehicle-mounted anchor point, and a first movable gear piece and a second movable gear piece are arranged in the connector; the first gear piece and the second gear piece are suitable for entering and exiting the connector, the entering and exiting state of the first gear piece and the second gear piece is linked with the connecting state of the second end of the connector and the telescopic state between the sleeve and the connector, a plurality of trigger switches are arranged on the sleeve, and the first gear piece and the second gear piece are suitable for moving to the outside of the connector. According to the electronic gear display device, electronic gear display can be achieved, and the problem of wire harness abrasion is solved through the wire-free design.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safety seats, in particular to a seat connecting assembly and a safety seat. BACKGROUND

[0002] A safety seat is a seat designed for children of different heights (or age groups) and installed in a car, which can effectively improve the safety of children riding in the car. It is also called a child seat. The safety seat is generally equipped with an ISOFIX assembly that can be extended, which is used to connect with the anchor points in the vehicle. In order to facilitate users to observe the extension state of the seat connecting assembly, seat connecting assemblies with gear display have gradually appeared on the market, especially seat connecting assemblies with electronic display of gear display, which have the advantages of high degree of freedom of arrangement, rich display information, etc.

[0003] However, the existing safety seat has the following defects: the seat connecting assembly with electronic display of gear display needs to be arranged with wires to connect the gear sensor to realize signal transmission. The seat connecting assembly will cause wear to the wires during the process of extension adjustment, affecting the stability and service life of the gear display function. SUMMARY

[0004] An object of the present application is to provide a seat connecting assembly with electronic gear display function and without wires.

[0005] To achieve the above object, the technical scheme adopted by the present application is as follows: a seat connecting assembly, comprising a sleeve, a connector and a display, the first end of the connector is slidingly arranged in the sleeve, the second end of the connector is adapted to be connected with the anchor points in the vehicle, the first gear and the second gear are movably arranged in the connector, the first gear and the second gear are adapted to enter and exit the connector, the entering and exiting state of the first gear and the second gear is linked with the connection state of the second end of the connector and the extension state between the sleeve and the connector, a plurality of trigger switches are arranged on the sleeve, the first gear and the second gear are adapted to move to the outside of the connector and respectively contact different trigger switches, and the display is adapted to receive the signals of the trigger switches to change the display information.

[0006] In some embodiments, a plurality of lock holes are arranged on the top of the sleeve along the sliding path of the connector, the trigger switches and the connector are arranged on the upper and lower sides of the lock holes respectively, the trigger switches and the lock holes are one-to-one matched, and the first gear and the second gear are adapted to pass through different lock holes and contact the corresponding trigger switches.

[0007] In some embodiments, the top of the sleeve is provided with a fixing seat, a main control board is arranged in the fixing seat, the trigger switch is connected with the main control board, the main control board is adapted to convert the signal of the trigger switch into corresponding gear information, and the fixing seat is adapted to fix the trigger switch on the main control board.

[0008] In some embodiments, the trigger switch is arranged on the main control board in a terminal direct connection form, the fixing seat is adapted to separate the terminals of adjacent trigger switches, and the trigger distance between each trigger switch and the lock hole is configured to be equal.

[0009] In some embodiments, the connector is provided with a movable connection lock block, the connection state of the connection lock block and the second end of the connector is linked, the connection lock block is adapted to act on the first gear and the second gear to enter or exit the connector, the connection lock block is adapted to be driven by the outside of the connector to move, so that the second end of the connector locks or releases the vehicle anchor point, the first gear enters the connector, and the second gear enters or exits the connector, when the first gear extends out of the connector, the sleeve and the connector are adapted to be telescopic, and when the second gear extends out of the connector, the sleeve and the connector are adapted to be limited to be telescopic.

[0010] In some embodiments, the connector is provided with a first elastic reset member, the first elastic reset member is adapted to reset the first gear to extend out of the connector, and the connection lock block is adapted to move to make the first gear enter the connector; the connector is provided with a second elastic reset member, the second elastic reset member is adapted to reset the second gear to enter the connector, and the second elastic reset member is adapted to cooperate with the movement of the connection lock block to make the second gear enter or exit the connector.

[0011] In some embodiments, the connecting lock block is provided with a first protrusion and a second protrusion, and is adapted to move so that the first protrusion and the second protrusion abut against the first gear and the second gear respectively to limit the first gear and the second gear from entering the connector simultaneously; the first gear is rotatably arranged in the connector, and is provided with a gear portion and a driving portion along the rotation circumference, the connecting lock block is adapted to abut against the driving portion to drive the first gear to rotate and make the gear portion enter the connector, and the first elastic reset member is adapted to make the first gear rotate to reset so that the gear portion extends out of the connector, and the direction in which the gear portion rotates to enter the connector is consistent with the direction in which the sleeve and the connector are retracted; the second gear is rotatably arranged in the connector, and is provided with a third protrusion, and the second protrusion and the third protrusion are adapted to abut against each other or separate when the connecting lock block moves, so that the second gear rotates to extend out of or enter the connector.

[0012] In some embodiments, the second end of the connector is provided with a movable pawl, the vehicle-mounted anchor point is adapted to enter the second end along a first direction, the pawl is adapted to move and be clamped with the vehicle-mounted anchor point in the first direction, and the connecting lock block is adapted to move and abut against the pawl to limit the movement of the pawl and the unclamping with the vehicle-mounted anchor point; a third elastic reset member is arranged between the connecting lock block and the pawl, the connecting lock block is adapted to move away from the pawl, so that the third elastic reset member drives the pawl to move to unclamp the pawl with the vehicle-mounted anchor point; and the pawl is rotatably arranged at the second end of the connector.

[0013] In some embodiments, the sleeve and the display are arranged separately on a safety seat, and are connected by a wire harness or a signal; the number of the seat connecting assemblies is two, and the two seat connecting assemblies are adapted to be arranged symmetrically; and the display displays corresponding gears and / or corresponding states according to the current gear according to the received signals.

[0014] A safety seat comprising the seat connecting assembly described above.

[0015] Compared with the prior art, the seat connecting assembly of the application has the beneficial effects that: the seat connecting assembly of the application can be connected with the vehicle anchor point through arranging the sleeve on the safety seat and using the telescopic locking between the connector and the sleeve, and is designed with an electronic gear display function, which can display more diverse prompt contents, and when the telescopic locking between the connector and the sleeve is performed, the electronic gear display function can realize different forms of signal triggering feedback by different combination modes of the contact matching between the active state of the first gear piece and the second gear piece on the connector and the trigger switch on the sleeve, so as to realize the identification and display of the gear state, and can solve the problem that the traditional design of the electronic gear display function needs to pass the wires between the sleeve and the connector and is easy to be worn, and since the signal of the trigger switch is triggered by the cooperation of the first gear piece and the second gear piece, more states of the seat connecting assembly in unlocking, locking and adjusting can be identified and displayed, and the seat connecting assembly has higher practicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a whole structure view according to a preferred embodiment of the application.

[0017] Figure 2 is an exploded structure view according to a preferred embodiment of the application.

[0018] Figure 3 is an internal schematic view in an initial state according to a preferred embodiment of the application.

[0019] Figure 4 is an internal schematic view pulled out to the longest state according to a preferred embodiment of the application.

[0020] Figure 5 is an internal schematic view when connecting the vehicle anchor point according to a preferred embodiment of the application.

[0021] Figure 6 is an internal schematic view in the process of adjusting the gear according to a preferred embodiment of the application.

[0022] Figure 7 is an internal schematic view when completing the adjustment of the gear according to a preferred embodiment of the application.

[0023] Figure 8 is a layout schematic view of two seat connecting assemblies according to a preferred embodiment of the application.

[0024] Figure 9 is a display information schematic view in the process of unlocking and adjusting the seat connecting assembly according to a preferred embodiment of the application.

[0025] Figure 10is a schematic diagram of display information when the seat connecting assembly is unlocked or locked according to a preferred embodiment of the present application.

[0026] In the figure: 1, sleeve; 11, lock hole; 12, fixed seat; 2, connector; 21, first gear; 211, gear part; 212, driving part; 22, second gear; 23, connecting lock block; 241, first protruding part; 242, second protruding part; 24, first elastic reset part; 25, second elastic reset part; 26, clamping tooth; 27, third elastic reset part; 3, display; 4, main control board; 5, trigger switch; 6, vehicle-mounted anchor point; 7, base. DETAILED DESCRIPTION

[0027] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments or technical features can be combined with each other to form new embodiments without conflict.

[0028] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0030] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] The present application will be further described below in conjunction with the drawings: As Figures 1 to 10As shown, the present application provides a seat connecting assembly, which comprises a sleeve 1, a connector 2 and a display 3, the first end of the connector 2 is slidingly arranged in the sleeve 1, the second end of the connector 2 is adapted to be connected with the vehicle anchor point 6, the first end is adapted to slide relative to the sleeve 1, so that the second end of the connector 2 is close to or away from the sleeve 1, realizing the extension and contraction of the seat connecting assembly, to adapt to the connection distance between the vehicle anchor point 6.

[0032] In the present application, the second end of the connector 2 is generally applied to the connection with the vehicle anchor point 6 of the ISOFIX system.

[0033] The first gear 21 and the second gear 22 are movably arranged in the connector 2, the first gear 21 and the second gear 22 are adapted to enter and exit the connector 2, the entering and exiting state of the first gear 21 and the second gear 22 is linked with the connection state of the second end of the connector 2 and the extension and contraction state between the sleeve 1 and the connector 2, the sleeve 1 is provided with a plurality of trigger switches 5, the first gear 21 and the second gear 22 are adapted to move to the outside of the connector 2 and respectively contact different trigger switches 5, and the display 3 is adapted to receive the signal of the trigger switch 5 to change the display information.

[0034] It is worth noting that the sleeve 1 is provided with a plurality of trigger switches 5, which is to make the trigger switch 5 take the sleeve 1 as a fixed basis, so as to realize the relative movement state with the connector 2, therefore, this description does not make specific connection relationship limitation to the sleeve 1 and the trigger switch 5, in fact, the arrangement mode of the trigger switch 5 includes but is not limited to being arranged in the inside (outside) of the sleeve 1, being arranged on other components arranged inside and outside the sleeve 1, etc., which can all realize the signal triggering effect required by the present application.

[0035] Specifically, since the second end of the connector 2 is adapted to be connected and locked with the vehicle anchor point 6, the connection state of the first gear 21 and the second gear 22 with the second end of the connector 2 is linked, which means that when the second end of the connector 2 and the vehicle anchor point 6 are not connected and when they are connected, the first gear 21 and the second gear 22 are adapted to contact and trigger the trigger switch 5 in different states, for example, it can be set that when the second end of the connector 2 and the vehicle anchor point 6 are not connected, the first gear 21 and the second gear 22 can contact and trigger different trigger switches 5, when the second end of the connector 2 and the vehicle anchor point 6 are connected, only the first gear 21 can contact and trigger the trigger switch 5 to generate different trigger signals, so as to indirectly identify the connection and locking state between the second end of the connector 2 and the vehicle anchor point 6.

[0036] The first gear 21 and the second gear 22 are linked with the telescopic state of the sleeve 1 and the connector 2, that is, one or both of the first gear 21 and the second gear 22 enter or exit the connector 2, so that the sleeve 1 and the connector 2 can be telescoped, or can only be contracted, or cannot be telescoped, and different signals triggered by the first gear 21 and the second gear 22 entering or exiting the connector 2 can indirectly identify the telescopic state between the sleeve 1 and the connector 2.

[0037] Through the above operation logic, in addition to being able to identify the position and state of the current gear, the signals triggered by the first gear 21 and the second gear 22 can also be combined to determine the connection state between the second end of the connector 2 and the vehicle anchor point 6, and further, the locking state after the second end of the connector 2 is connected to the vehicle anchor point 6. Then, by taking advantage of the electronic gear display function, the identification result can be more accurately displayed to the user, making it easier for the user to observe and confirm the current gear position and locking condition.

[0038] It is worth noting that the first gear 21 and the second gear 22 need to be set so that they cannot trigger the same trigger switch 5 at the same time, otherwise it will not be possible to identify the locking condition of the second end of the connector 2.

[0039] In addition, the present application changes the state sensing between the sleeve 1 and the connector 2 from using sensors to sense and using wires to transmit signals to using trigger switches 5 to directly sense the mechanical action of the connector 2 to trigger sensing, achieving a wire-free design to solve the problem of pulling and wearing wires during the telescoping process of the seat connection assembly, thereby greatly improving the stability and service life of the electronic gear display function, reducing interference, and having a simpler structure layout and higher universality, suitable for most safety seats.

[0040] As shown in the embodiment shown in Figures 2 to 7 The top of the sleeve 1 is provided with a plurality of lock holes 11 along the sliding path of the connector 2, and the trigger switch 5 and the connector 2 are arranged on the upper and lower sides of the lock hole 11 (see Figures 3 to 7 ), the trigger switch 5 and the lock hole 11 are one-to-one matched, the first gear 21 and the second gear 22 are adapted to pass through different lock holes 11 and contact the corresponding trigger switch 5, and the mechanical locking action between the sleeve 1 and the connector 2 (the action of the first gear 21 and the second gear 22) is logically associated with the trigger switch 5, thereby achieving accurate identification and judgment of the gear and locking state of the connector 2.

[0041] It is worth noting that when the first gear 21 and / or the second gear 22 pass through the lock hole 11, the first gear 21 and / or the second gear 22 can lock the sleeve 1 and the connector 2 to limit the relative movement of the sleeve 1 and the connector 2 without the first gear 21 and / or the second gear 22 actively disengaging from the lock hole 11, so the lock holes 11 at different positions correspond to different extension gears, and in order to further identify the current gear, the case where the first gear 21 and the second gear 22 pass through different lock holes 11 at the same time (two trigger switches 5 are triggered at the same time) needs to be excluded, and because the positions of the first gear 21 and the second gear 22 are relatively fixed, triggering the two trigger switches 5 at the same time will necessarily trigger the front and rear trigger switches 5 at the same time, so the triggering of the first gear 21 (the second gear 22) can be taken as the main identification object, and when the two trigger switches 5 are triggered at the same time, only the signal of the front trigger switch 5 (the rear trigger switch 5) is used to identify the current gear.

[0042] In some embodiments, the trigger switch 5 is a micro switch or a travel switch, which has small volume, simple structure, convenient installation and low procurement cost.

[0043] As shown in the embodiment shown in Figures 1 to 8 The top of the sleeve 1 is provided with a fixed seat 12, the fixed seat 12 is provided with a main control board 4, the trigger switch 5 is connected with the main control board 4, the main control board 4 is suitable for converting the signal of the trigger switch 5 into corresponding gear information, the fixed seat 12 is suitable for fixing the trigger switch 5 with the main control board 4, the fixed seat 12 can play a role in protecting and strengthening the structure and connection of the main control board 4 and the trigger switch 5, the trigger switch 5 is integrated on the main control board 4, which can not only improve the compactness of the structure and reduce the overall volume of the seat connection assembly, but also can further cancel the wire harness connection, so that the wire harness does not fall off, and the structural stability and vibration resistance are improved, and the assembly difficulty is reduced and the assembly efficiency is improved.

[0044] It can be understood that the sleeve 1 and the display 3 can be arranged separately and connected by wire harness, for example, they can be arranged separately on the safety seat, which has higher arrangement flexibility and can adapt to different specifications of safety seats and display requirements, and the display 3 can be arranged at a position more easily observed by the user.

[0045] It is worth noting that the sleeve 1 and the display 3 can also be connected by wireless signal to further reduce the use of wire harness and facilitate the optimization of the overall structural compactness.

[0046] In this application, the display 3 can display the corresponding gear according to the received signal and / or display the corresponding state according to the current gear, specifically: As shown in the embodiment shown in Figure 9In the shown embodiment, the display information of the display 3 comprises a color block, in the present application, the color block can represent the state display when the gear is unlocked and adjusted to stretch and retract (neither the first gear 21 nor the second gear 22 contacts the trigger switch 5), for example, the red color block is used for effective prompt; As Figure 10 In the shown embodiment, the display information of the display 3 comprises color characters, in the present application, the red color characters are used for the state display when the gear is unlocked, and the green color characters are used for the state display when the gear is locked, specifically, the characters L and R represent left and right, and the numbers represent the gear corresponding to the current stretching and retracting position.

[0047] As Figures 2 to 7 In the shown embodiment, the trigger switch 5 is arranged on the main control board 4 in the form of terminal direct connection, which can make the overall structure more compact and the connection structure more stable.

[0048] As Figures 2 to 7 In the shown embodiment, the fixed seat 12 is suitable for separating the terminals of adjacent trigger switches 5, reducing the interference between adjacent trigger switches 5, especially the interference of the terminal part, reducing the interference and improving the operation stability, and at the same time, it can also improve the structural stability of the trigger switch 5 to a certain extent and reduce the probability of loosening of the trigger switch 5.

[0049] In some embodiments, the trigger distance between each trigger switch 5 and the lock hole 11 is configured to be equal, under the premise that the first gear 21 and the second gear 22 operate stably, the first gear 21 and the second gear 22 can stably trigger each trigger switch 5, thereby improving the accuracy and stability of the gear state recognition.

[0050] As Figures 2 to 7 In the shown embodiment, the connector 2 is provided with a movable connection lock block 23, the connection state of the connection lock block 23 and the second end of the connector 2 is linked, the connection lock block 23 is suitable for the first gear 21 and the second gear 22 to enter and exit the connector 2, specifically, the connection lock block 23 is suitable for limiting the first gear 21 to enter the connector 2, the connection lock block 23 is suitable for the second gear 22 to enter and exit the connector 2, the connection lock block 23 is suitable for being driven by the outside of the connector 2 to move, so that the second end of the connector 2 locks or releases the vehicle anchor point 6, the first gear 21 enters the connector 2, and the second gear 22 enters and exits the connector 2, ensuring that the action of locking or releasing the vehicle anchor point 6 at the second end of the connector 2 is linked with and synchronized with the state change of the trigger switch 5 contacted by the first gear 21 and the second gear 22, thereby stably recognizing the unlocking state of the second end of the connector 2, and also recognizing the gear unlocking and locking according to the contact of the first gear 21 or the simultaneous contact of the first gear 21 and the second gear 22.

[0051] In some embodiments, the connecting lock block 23 can be driven by a user from the outside of the connector 2 in the form of connecting an external controller, etc.

[0052] As shown in the embodiment, the first elastic reset member 24 is arranged in the connector 2, and the first elastic reset member 24 is suitable for resetting the first gear member 21 to extend out of the connector 2. The connecting lock block 23 is suitable for moving to make the first gear member 21 enter the connector 2, and the connecting lock block 23 can actively drive the first gear member 21 to enter the connector 2 to be unlocked. On the premise that the second gear member 22 is also located in the connector 2, the active telescopic adjustment between the sleeve 1 and the connector 2 is realized. Figures 2 to 7 Specifically, the first gear member 21 is rotationally arranged in the connector 2, and the first gear member 21 is provided with a gear portion 211 and a driving portion 212 along the rotation circumferential direction. The connecting lock block 23 is suitable for abutting to the driving portion 212 to drive the first gear member 21 to rotate and make the gear portion 211 enter the connector 2. The first elastic reset member 24 is suitable for resetting the first gear member 21 to rotate, so that the gear portion 211 extends out of the connector 2.

[0053] It is worth noting that the direction of the gear portion 211 rotating into the connector 2 needs to comply with the telescopic direction of the sleeve 1 and the connector 2. On the premise that the first gear member 21 is not interfered by the connecting lock block 23, when the sleeve 1 and the connector 2 are telescoped, the gear portion 211 can be passively entered into the connector 2 through the structural interference between the sleeve 1 and the connector 2, so that the user can realize the telescopic control of the sleeve 1 and the connector 2 without elongation.

[0054] As shown in the embodiment, the second elastic reset member 25 is arranged in the connector 2, and the second elastic reset member 25 is suitable for resetting the second gear member 22 to enter the connector 2. The second elastic reset member 25 is suitable for cooperating with the movement of the connecting lock block 23 to make the second gear member 22 enter and exit the connector 2. The connecting lock block 23 can actively drive the second gear member 22 to extend out of the connector 2 to be locked, so as to limit the telescopic effect of the sleeve 1 and the connector 2.

[0055] Figures 2 to 7 In some embodiments, the first elastic reset member 24 and the second elastic reset member 25 are springs. In this application, the first elastic reset member 24 is arranged on the side of the first gear member 21 away from the lock hole 11, and is a tension spring structure. The first elastic reset member 24 is suitable for pulling the first gear member 21 to be close to and pass through the lock hole 11. The second elastic reset member 25 is arranged on the side of the second gear member 22 close to the lock hole 11, and is a compression spring structure. The second elastic reset member 25 is suitable for pushing the second gear member 22 away from the lock hole 11.

[0056] As shown in the embodiment, the second elastic reset member 25 is arranged in the connector 2, and the second elastic reset member 25 is suitable for resetting the second gear member 22 to enter the connector 2. The second elastic reset member 25 is suitable for cooperating with the movement of the connecting lock block 23 to make the second gear member 22 enter and exit the connector 2. The connecting lock block 23 can actively drive the second gear member 22 to extend out of the connector 2 to be locked, so as to limit the telescopic effect of the sleeve 1 and the connector 2.

[0057] As shown in the embodiment, the second elastic reset member 25 is arranged in the connector 2, and the second elastic reset member 25 is suitable for resetting the second gear member 22 to enter the connector 2. The second elastic reset member 25 is suitable for cooperating with the movement of the connecting lock block 23 to make the second gear member 22 enter and exit the connector 2. The connecting lock block 23 can actively drive the second gear member 22 to extend out of the connector 2 to be locked, so as to limit the telescopic effect of the sleeve 1 and the connector 2. Figures 2 to 7 ​In the embodiment shown, the second end of the connector 2 is provided with a movable latch 26, and the vehicle anchor point 6 is suitable for moving in a first direction (refer to Figures 2 to 7 The latch 26 is adapted to be movable and engaged with the vehicle-mounted anchor point 6 in the first direction, and the connecting lock block 23 is adapted to be movably abutted against the latch 26 to limit the movement of the latch 26 and release the engagement with the vehicle-mounted anchor point 6. The movement of the connecting lock block 23 is associated with the locking of the latch 26. Since the movement of the connecting lock block 23 is also associated with the first gear member 21 and the second gear member 22, the mutual connection and influence between the state of the latch 26, the state of the first gear member 21 and the state of the second gear member 22 can be indirectly achieved through the connecting lock block 23.

[0058] In some embodiments, the latch 26 is rotatably arranged at the second end of the connector 2. The structure of the second end of the connector 2 is suitable for limiting the initial position of the latch 26. A bayonet is provided on the second end of the connector 2. When the connection anchor point enters the bayonet, the latch 26 is suitable for closing the bayonet by rotation. At this time, the connection locking block 23 is operated to engage the rotated latch 26 to achieve locking of the connection anchor point.

[0059] like Figures 2 to 7 In the embodiment shown, a third elastic return member 27 is provided between the connecting lock block 23 and the latch tooth 26. The connecting lock block 23 is suitable for moving away from the latch tooth 26, so that the third elastic return member 27 drives the latch tooth 26 to move, thereby releasing the latch tooth 26 from the vehicle anchor point 6. The third elastic return member 27 is suitable for associating the movement of the connecting lock block 23 with the movement of the latch tooth 26, thereby making the process of operating the connecting lock block 23 to slide and unlock the latch tooth 26 smoother and obtaining better operation feedback. The user can more intuitively feel the mutual influence of the force of the third elastic return member 27 and the latching force between the connecting lock block 23 and the latch tooth 26, thereby being able to judge the unlocking status by operation feedback. In addition, after the operation, the connecting lock block 23 can automatically move close to the latch tooth 26 under the influence of the third elastic return member 27, facilitating the next linkage locking.

[0060] In some embodiments, the third elastic return member 27 is a tension spring.

[0061] like Figures 2 to 7 In the embodiment shown, a first protrusion 241 and a second protrusion 242 are provided on the connecting locking block 23. The connecting locking block 23 is suitable for being close to the first shift member 21 and the second shift member 22 (while being away from the latching teeth 26), so that the first protrusion 241 and the second protrusion 242 respectively cooperate and abut with the first shift member 21 and the second shift member 22 to limit the first shift member 21 and the second shift member 22 from entering the connector 2 at the same time, and the connecting locking block 23 passes through the first protrusion 241 and the second protrusion 242.

[0062] like Figures 2 to 7 In the embodiment shown, the second gear member 22 is rotatably arranged in the connector 2, and a third protrusion is provided on the second gear member 22. When the connecting locking block 23 is active, the second protrusion 242 and the third protrusion are suitable for cooperating and abutting or separating, so that the second gear member 22 is rotated to extend out or enter the connector 2. When the second protrusion 242 and the third protrusion are cooperating and abutting, the second gear member 22 is pushed out of the connector 2 by the connecting locking block 23 to be locked. At this time, no matter whether the first gear member 21 enters the connector 2 or not, the sleeve 1 and the connector 2 cannot be telescopically adjusted. When the second protrusion 242 and the third protrusion are cooperating and separating, the obstruction of the second gear member 22 entering the connector 2 is released, and the second gear member 22 is suitable for entering the connector 2 and maintaining the entered state under the pressure of the second elastic return member 25.

[0063] The operating principle of this application is as follows: Figure 3 As shown, the seat connection assembly is still in the initial retracted state. At this time, the first gear member 21 in the seat connection assembly is under the pulling force of the first elastic return member 24, and the second gear member 22 is under the contact and top action of the second protrusion 242 on the connecting lock block 23, respectively triggering the trigger switch 5 on the main control board 4, generating two trigger switches 5. The triggering signal is generated, which indicates that the latch 26 is in the unlocked state. The display information of the display 3 is the red number corresponding to the gear position. When the safety seat with the seat connection assembly of the present application is fixed to the car seat, as shown in FIG. Figure 4 As shown, the seat connection assembly is pulled out to its longest position. Since the latch 26 is still in the unlocked state, the triggered trigger switch 5 changes, and the display information of the display 3 is a red number corresponding to the gear position. At this time, the second end of the connector 2 is aligned with the vehicle anchor point 6, and the safety seat is pushed toward the car seat backrest. Figure 5 As shown, the latch 26 in the second end of the connector 2 can rotate and engage the vehicle anchor point 6 under the action of the pushing force, and there is a third elastic reset member 27 between the latch 26 and the connecting lock block 23. The connecting lock block 23 moves toward the second end of the connector 2 under the action of the third elastic reset member 27 and locks the latch 26. At this time, the second protrusion 242 on the connecting lock block 23 avoids the protruding structure on the second gear member 22. The second gear member 22 rotates downward under the action of the second elastic reset member 25 and disengages from the trigger switch 5 above. However, under the action of the pulling force of the first elastic reset member 24 of the first gear member 21, it continues to contact the trigger switch 5 above to generate a single trigger signal. At this time, it represents that the latch 26 is in a locked state with the vehicle anchor point 6, and the display information of the display 3 is a green number corresponding to the gear position; at this time, continue to push toward the backrest of the car seat, as shown Figures 6 to 7As shown, the first gear 21 is quickly rotated downward under the interference of the sleeve 1 structure between the lock holes 11, until the seat connecting assembly is retracted to the seat tightening, the first gear 21 is extended at the corresponding lock hole 11, at this time the seat is fixed, the display 3 on the seat shows the green number of the corresponding gear, and the anti-rollover device (such as support legs, pull-up belts, etc.) is matched, so that the child can ride and be restrained by the restraint system.

[0064] When the seat connecting assembly is adjusted from the initial position to the longest position, at this time the first gear 21 is rotated downward under the pushing of the tail end of the connecting lock block 23 to escape the upper trigger switch 5, and the protruding structure of the second gear 22 also avoids the second protruding part 242 of the connecting lock block 23, and under the action of the second elastic reset part 25, it also rotates downward to escape the upper trigger switch 5 at the same time, at this time all the trigger switches 5 are not triggered and no signal is generated, at this time the display 3 on the seat can display a red block.

[0065] In some embodiments, the sleeve 1 is fixedly arranged on the safety seat, and the connector 2 is adapted to slide and stretch relative to the sleeve 1, that is, to slide and stretch relative to the safety seat, so as to realize the docking and stable connection between the safety seat and the vehicle-mounted anchor point 6.

[0066] As shown in the embodiment, Figure 8 The number of seat connecting assemblies is two, and the two seat connecting assemblies are adapted to be symmetrically arranged. In the present application, the controller is adapted to be arranged on one side of the seat connecting assembly, the controller is connected with the connecting lock block 23, and the controller can drive the connecting lock block 23 to move, so as to realize the unlocking or locking of the connector 2. The symmetric arrangement can effectively avoid that the controller is located on the opposite side of the two seat connecting assemblies, so that the user can conveniently observe and operate when the seat connecting assembly is arranged on the safety seat.

[0067] As shown in the embodiment, Figure 9 and 10 The present application also provides a safety seat, which comprises the seat connecting assembly of any one of the above-mentioned embodiments. The seat connecting assembly is adapted to be arranged on the base 7 of the safety seat. The number of seat connecting assemblies is two, and the seat connecting assemblies are symmetrically arranged along the central axis of the base 7, so as to improve the connection stability and force uniformity. The second end of the connector 2 is adapted to extend from the rear part of the base 7, and the display 3 displays information on the front part of the base 7, so as to facilitate the user to observe and confirm.

[0068] The above describes the basic principles, main features and advantages of the present application, and those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A seat connection assembly, characterized in that: It includes a sleeve, a connector and a display, the first end of the connector is slidably installed in the sleeve, the second end of the connector is suitable for connecting to a vehicle-mounted anchor point, and a movable first gear member and a second gear member are provided in the connector, the first gear member and the second gear member are suitable for entering and exiting the connector, the entry and exit states of the first gear member and the second gear member are linked to the connection state of the second end of the connector and the telescopic state between the sleeve and the connector, a plurality of trigger switches are provided on the sleeve, the first gear member and the second gear member are suitable for moving to the outside of the connector and respectively contacting different trigger switches, and the display is suitable for receiving signals from the trigger switches to change display information.

2. A seat connection assembly according to claim 1, characterized in that: A plurality of lock holes are provided at the top of the sleeve along the sliding path of the connector, and the trigger switch and the connector are respectively arranged on the upper and lower sides of the lock holes, and the trigger switch and the lock holes correspond to each other one by one, and the first gear member and the second gear member are suitable for passing through different lock holes and contacting the corresponding trigger switches.

3. A seat connection assembly according to claim 2, characterized in that: A fixing seat is provided at the top of the sleeve, a main control board is provided in the fixing seat, the trigger switch is connected to the main control board, the main control board is suitable for converting the signal of the trigger switch into corresponding gear information, and the fixing seat is suitable for cooperating with the main control board to fix the trigger switch.

4. A seat connection assembly according to claim 3, characterized in that: The trigger switches are arranged on the main control board in the form of direct terminal connection, and the fixing seat is suitable for separating the terminals of adjacent trigger switches; the trigger distance between each trigger switch and the lock hole is configured to be equal.

5. The seat connection assembly according to claim 1, wherein: A movable connecting locking block is provided in the connector, and the connecting locking block is linked to the connection state of the second end of the connector. The connecting locking block is suitable for causing the first gear member and the second gear member to enter and exit the connector. The connecting locking block is suitable for being moved by external drive of the connector to enable the second end of the connector to lock or release the vehicle anchor point, the first gear member to enter the connector, and the second gear member to enter and exit the connector. When the first gear member extends out of the connector, the sleeve and the connector are suitable for contraction, and when the second gear member extends out of the connector, it is suitable for limiting the extension and retraction of the sleeve and the connector.

6. A seat connection assembly according to claim 5, characterized in that: A first elastic reset member is provided in the connector, and the first elastic reset member is suitable for resetting the first gear member and extending out of the connector, and the connecting locking block is suitable for moving to allow the first gear member to enter the connector; a second elastic reset member is provided in the connector, and the second elastic reset member is suitable for resetting the second gear member and entering the connector, and the second elastic reset member is suitable for cooperating with the movement of the connecting locking block to allow the second gear member to enter and exit the connector.

7. A seat connection assembly according to claim 6, characterized in that: The connecting locking block is provided with a first protrusion and a second protrusion, and the connecting locking block is suitable for being movable so that the first protrusion and the second protrusion respectively cooperate and abut with the first gear member and the second gear member to limit the first gear member and the second gear member from entering the connector at the same time; the first gear member is rotatably arranged in the connector, and the first gear member is provided with a gear portion and a driving portion along the rotation circumference, and the connecting locking block is suitable for abutting against the driving portion to drive the first gear member to rotate and make the gear portion enter the connector, and the first elastic reset member is suitable for rotating and resetting the first gear member so that the gear portion extends out of the connector, and the direction in which the gear portion rotates to enter the connector complies with the contraction direction of the sleeve and the connector; the second gear member is rotatably arranged in the connector, and the second gear member is provided with a third protrusion, and when the connecting locking block is movable, the second protrusion and the third protrusion are suitable for cooperating and abutting or separating, so that the second gear member rotates to extend out or enter the connector.

8. The seat connection assembly according to claim 5, wherein: The second end of the connector is provided with a movable latch tooth, and the vehicle-mounted anchor point is suitable for entering the second end along the first direction. The latch tooth is suitable for movement and is engaged with the vehicle-mounted anchor point in the first direction, and the connecting locking block is suitable for movably abutting against the latch tooth to limit the movement of the latch tooth and release the engagement with the vehicle-mounted anchor point; a third elastic reset member is provided between the connecting locking block and the latch tooth, and the connecting locking block is suitable for moving away from the latch tooth so that the third elastic reset member drives the latch tooth to move to release the engagement of the latch tooth with the vehicle-mounted anchor point; the latch tooth is rotatably provided at the second end of the connector.

9. The seat connection assembly according to claim 1, wherein: The sleeve and the display are arranged separately on the safety seat, and the sleeve and the display are connected by a wire harness or a signal; the number of the seat connection components is two, and the two seat connection components are suitable for being symmetrically arranged; the display displays the corresponding gear position according to the received signal and / or displays the corresponding status according to the current gear position.

10. A safety seat, characterized in that: The seat connection assembly comprises the seat connection assembly according to any one of claims 1 to 9.

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