Adjustment mechanism for ISOFIX connection, safety seat base and safety seat

Abstract

The present disclosure relates to an adjustment mechanism for an ISOFIX connection, a safety seat base (1), and a safety seat. The safety seat base (1) comprises a mounting base (101), a rotary plate (102), an engagement mechanism, and a connection mechanism (200). The rotary plate (102) is rotatably mounted on the mounting base (101) and has a first rotation position and a second rotation position. The engagement mechanism is configured such that the rotary plate engages with the safety seat body. The connection mechanism (200) comprises a drive element (230) and a sliding element (210). The drive element (230) is slidably mounted on the mounting base (101). The sliding element (210) is slidably mounted on the rotary plate (102).The sliding element (210) projects at least partially into the mounting base (101) to bear against the drive element (230), or the driving element (230) projects at least partially into the rotary table (102) to bear against the sliding element (210). When the rotary table (102) is in the first rotational position, the drive element (230) can be actuated to move and drive the sliding element (210) to slide, thus driving the engagement mechanism for unlocking.

Description

[0001] The present disclosure relates generally to child carriers and, more particularly, to an adjustment mechanism for an ISOFIX connection, a safety seat base, and a safety seat. GENERAL STATE OF THE ART

[0002] Some safety seat bases currently available on the market can often be engaged with both an infant car seat and a child seat. The child safety seat generally rotates into engagement with the vehicle seat base, allowing it to be used forward- or rearward-facing as needed, while the toddler safety seat can only be rotated for rear-facing use.

[0003] In addition, the safety seat can be attached to the vehicle via an ISOFIX system. The ISOFIX system usually consists of a connection, such as an ISOFIX connecting rod, which is arranged on the safety seat, and an anchor, such as an ISOFIX snap ring, which is arranged on the vehicle. To adapt to different vehicle models and to adjust an angle of the safety seat, the safety seat is equipped with an adjustment mechanism that can control an ISOFIX connection to extend out from the bottom of the safety seat or retract into it. The adjustment mechanism is usually arranged as a multi-stage adjustment structure to make it easier for the user to adjust the distance between the safety seat and the ISOFIX connection when installing the safety seat. In a known safety seat, actuating elements for operating the adjustment mechanism, such asControl buttons are located on two sides of the underside of the safety seat, allowing the user to press the control button on either side of the safety seat to unlock the adjustment mechanism, allowing the user to adjust the distance between the safety seat and the ISOFIX connection. When the user stops operating the control button by releasing the control button, the adjustment mechanism can be automatically locked to secure the ISOFIX connection in a target position. DEMOLITION

[0004] According to various embodiments of the present disclosure, an adjustment mechanism for an ISOFIX connection, a safety seat base, and a safety seat are provided.

[0005] According to one aspect of the present disclosure, a safety seat base is provided. A safety seat body is attached to the safety seat base, and the safety seat base comprises: a mounting base; a turntable rotatably mounted on the mounting base and having a first rotational position and a second rotational position; an engagement mechanism configured to engage the turntable with the safety seat body; and a link mechanism having a drive member slidably disposed on the mounting base and a sliding member slidably disposed on the turntable; wherein the sliding member extends at least partially into the mounting base to abut the drive member, or the drive member extends at least partially into the turntable to abut the sliding member; and when the turntable rotates to the first rotational position, the drive member is operable to move and drive the sliding member, thereby driving the unlocking engagement mechanism.

[0006] According to another aspect of the present disclosure, a safety seat is provided, the safety seat comprising a safety seat body and the safety seat base as described above. The safety seat body is a safety seat body for infants or a safety seat body for children.

[0007] According to another aspect of the present disclosure, an adjustment mechanism for an ISOFIX connection is provided, wherein the ISOFIX connection is suitable for attachment to a connection component in a vehicle adapted for the ISOFIX connection. The adjustment mechanism comprises: a post configured to be connectable to a base of a safety seat; a slide bar assembly comprising two slide bars, one end of each of the two slide bars being slidably connected to the post and releasably locked with respect to the post, and the other end of each of the two slide bars being connected to the ISOFIX connection;an adjustment assembly having a link and two engagement elements, the two engagement elements being movably connected to the link, the link being configured to drive one of the two engagement elements driven by the other of the two engagement elements such that the two engagement elements move synchronously to lock the slide bar assembly to the support or engage the slide bar assembly with the support; and an actuating portion configured to drive one of the two engagement elements such that the two engagement elements synchronously release the slide bar assembly from the support or engage the slide bar assembly with the support.

[0008] According to another aspect of the present disclosure, a safety seat is provided, the safety seat comprising a base and the adjustment mechanism described above. The base is connected to the support. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The following description of the illustrated embodiments will be better understood when read in conjunction with the accompanying drawings. It is understood that possible embodiments of the illustrated systems and methods are not limited to those shown. Fig. 1 is a perspective view of a safety seat according to an embodiment of the present disclosure. Fig. 2 is a perspective view of a safety seat base of the safety seat of Fig. 1, with a turntable in a first rotational position. Fig. 3 is a perspective view of the safety seat base of the safety seat of Fig. 1, with the turntable in a second rotational position. Fig. 4 is a side view of the safety seat base of Fig. 2. Fig. 5 is a perspective view of the safety seat base of Fig. 2 with a top cover removed, a locking hook in a closed position and a sliding element in a locked position. Fig. 6 is an enlarged perspective view of part A in Fig. 5. Fig. 7 is a side cross-sectional view of the safety seat base of Fig. 5. Fig. 8 is an enlarged view of part B in Fig. 7; Fig. 9 is a perspective view of the safety seat base of Fig. 2 with the top cover removed, the locking hook in a release position and the sliding element in an unlocked position. Fig. 10 is an enlarged perspective view of a part C in Fig. 9. Fig. 11 is a side cross-sectional view of the safety seat base of Fig. 9. Fig. 12 is an enlarged view of part D in Fig. 11; Fig. 13 is a perspective view of a portion of the safety seat base of Fig. 9. Fig. 14 is an enlarged perspective view of part E in Fig. 13. Fig. 15 is a perspective view of the safety seat base of Fig. 9, in which a second fixed plate was removed. Fig. 16 is an enlarged perspective view of a part F in Fig. 15. Fig. 17 is a side cross-sectional view of the safety seat base of the safety seat of Fig. 1, with the turntable in the second rotation position. Fig. 18 is an enlarged view of part G in Fig. 17; Fig. 19 is a side cross-sectional view of the safety seat base of Fig. 2, wherein the locking hook is in the closed position and the sliding element is in the locked position. Fig. 20 is an enlarged view of part H in Fig. 19; Fig. 21 is a side cross-sectional view of the safety seat base of Fig. 2, wherein the locking hook is in the closed position and the sliding element is in the locked position. Fig. 22 is an enlarged view of part I in Fig. 21. Fig. 23 is a side cross-sectional view of the safety seat base of Fig. 2, with the locking hook in the release position and the sliding element in the unlocked position. Fig. 24 is an enlarged view of part J in Fig. 23; Fig. 25 is a side cross-sectional view of the safety seat base of Fig. 2, with the locking hook in the release position and the sliding element in the unlocked position. Fig. 26 is an enlarged view of part K in Fig. 25. Fig. 27 is a side cross-sectional view of the safety seat base of Fig. 2 according to another example, wherein the turntable is in the first rotational position and the sliding element is in the locked position. Fig. 28 is an enlarged view of a part L in Fig. 27. Fig. 29 is a side cross-sectional view of the safety seat base of Fig. 27, with the sliding element in the unlocked position. Fig. 30 is an enlarged view of a part M in Fig. 29. Fig. 31 is a side cross-sectional view of the safety seat base of Fig. 3, wherein the turntable is in the second rotational position and the sliding element is in the locked position. Fig. 32 is a perspective view of the safety seat base of Fig. 2, where the turntable is removed. Fig. 33 is an enlarged perspective view of a part N in Fig. 32. Fig. 34 is a perspective view of a Fig. 28 shown actuating element. Fig. 35 is a perspective view of the safety seat base of Fig. 2, where the turntable is removed. Fig. 36 is an enlarged perspective view of a part O in Fig. 35. Fig. 37 is a perspective view of a mounting base of the safety seat base of Fig. 27. Fig. 38 is an enlarged view of a part P in Fig. 37. Fig. 39 is a perspective view of a portion of the safety seat base of Fig. 2. Fig. 40 is an enlarged view of a part Q in Fig. 39. Fig. 41 is a perspective view of the safety seat base of Fig. 2 with an adjustment mechanism according to an embodiment, wherein the turntable is removed. Fig. 42 is an enlarged perspective view of a part R in Fig. 41. Fig. 43 is a perspective view of a slide bar assembly according to an embodiment of the present disclosure. Fig. 44 is a cross-sectional view of the safety seat base with the adjustment mechanism according to an embodiment of the present disclosure. Fig. 45 is a perspective view of a first actuator / a second actuator according to an embodiment of the present disclosure. Fig. 46 is a perspective view of a portion of the safety seat base showing the slide bar assembly of the adjustment mechanism locked to a post according to an embodiment of the present disclosure. Fig. 47 is a perspective view of a portion of the safety seat base showing that the slide bar assembly of the adjustment mechanism is unlocked from the support, as provided in one embodiment of the present disclosure. Fig. 48 is a perspective view of a part of the safety seat base, showing a case where the safety seat base is located at a certain distance from an ISOFIX connection according to an embodiment of the present disclosure. Fig. 49 is a perspective view of a part of the safety seat base, showing a case where the safety seat base is at a different distance from that shown in Fig. 48, from the ISOFIX connection, according to an embodiment of the present disclosure. Explanation of reference symbols:

[0010] 1. Safety seat base, 100. Engagement mechanism, 110. Locking hook, 111. Hook part, 112. Locking groove, 113. First pivot shaft, 114. Second connecting part, 115. First sliding part, 116. Second sliding part, 120. Fixed member, 130. Third return member, 140. Stopper, 141. Projecting part, 142. Second pivot shaft, 150. Fourth return member, 200\200'. Connecting mechanism, 210\210'. Sliding member, 211. Blocking part, 211a. Engagement part, 211b. Engagement rib, 212. Transmission rib, 212'. First sliding groove, 213\213'. Thrust convex, 214. Fixed hook, 220\220'. Second return element, 230\230'. Drive element, 231\231'. Second sliding groove, 240. Reinforcing pin, 240'. Connecting element, 241'. First end, 242'. Second end, 250\250'. Fifth return element, 300. Actuating assembly, 310. Actuating element, 311. Actuating part, 312. Pivoting part, 313. First connecting part, 320. Tension element, 340. Sixth return element, 400.Indicator mechanism, 410. Detector, 411. Sensing rib, 412. Sliding part, 420. First return element, 430. Sensor, 431. Transmitting end, 432. Receiving end, 101. Mounting base, 101a. Screen, 102. Turntable, 103. Engaging groove, 104. Fixed assembly, 104a. First fixed plate, 104b. Second fixed plate, 104c. Rivet, 105. Guide element, 106. Fastening receptacle, 107. Fastening rib, 108. Top cover, 108a. Fixed pillar, 109. Bottom cover, 2. Safety seat body, S2. ISOFIX connection; S10. Adjustment mechanism; S201. Base bottom cover; S2011. Mounting cavity; S2012. Mounting connection; S100. Support; S110. Mounting frame; S110a. Mounting frame; S110b. Mounting frame; S111. First engagement hole; S120. Sliding sleeve; S200: Slide rod assembly; S210. Slide rod; S210a. First slide rod; S210b. Second slide rod; S211. Second engagement hole; S220. Connector; S300. Adjustment assembly; S310. Engagement element; S310a.First engagement element; S310b. Second engagement element; S311. First interlocking part; S312. Engaging part; S320. Connection; S321. Second interlocking part; S400. Actuating part; S410. Actuating element; S410a. First actuating element; S410b. Second actuating element; S411. Actuating end; S412. Tension end; S413. Pivot axis; S500. Elastic element; S600. Elastic return element; S700. Tension element; S800. Steering post; S900. Roller element. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] To further clarify the objectives, technical solutions, and advantages of the present disclosure, the present disclosure will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for interpreting the present disclosure only and do not limit the scope of the present disclosure.

[0012] It should be noted that an element described as "fixed to another element" may be disposed directly on top of the other element, or an intervening element may be present. When an element is considered "connected" to another element, it is directly connected to the other element, or an intervening element may be present. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and are not intended to be definitive embodiments.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terms used in the description of this disclosure are for the purpose of describing particular embodiments only and are not intended to be limiting of this disclosure. The term "and / or" as used herein includes all combinations of one or more of the listed items.

[0014] As in Fig. As shown in Figure 1, one embodiment of the present disclosure provides a safety seat. The safety seat consists of a safety seat base 1 and a safety seat body 2. The safety seat body 2 is a safety seat body for infants or children under about four years of age, or a safety seat body for children over about four years of age.

[0015] The safety seat base 1 comprises a mounting base 101, a turntable 102, an engagement mechanism 100, a connecting mechanism 200, an actuating assembly 300 and a display mechanism 400. As shown in Fig. 2 and Fig. 3, the turntable 102 is rotatably mounted on the mounting base 101, and the turntable 102 has a first rotational position as shown in Fig. 2 and a second rotation position as shown in Fig. 3. As shown in the Fig. 2, Fig. 5 and Fig. As shown in Figure 11, the turntable 102 includes a mating top cover 108 and a mating bottom cover 109. Approximately in the center of the mounting base 101 is a circular mounting recess 106. The mounting base 101 includes an annular mounting rib 107 disposed along one wall of the mounting recess 106. The mounting rib 107 is disposed between the top cover 108 and the bottom cover 109 to provide a rotatable connection between the turntable 102 and the mounting base 101.

[0016] As in Fig. 4, the engagement mechanism 100 is configured such that the turntable 102 engages the safety seat body 2. When the safety seat body 2 is engaged with the turntable 102, the safety seat body 2 can therefore rotate with the turntable 102 relative to the mounting base 101. As shown in Fig. 2, the safety seat body 2 is in a rearward-facing state when it rotates with the turntable 102 to the first rotation position. That is, in this case, the front of the safety seat body 2 of the safety seat installed on the vehicle seat is directed toward the rear of a vehicle. As shown in Fig. 3, the safety seat body 2 is in a forward-facing state when it rotates with the turntable 102 to the second rotation position. That is, in this case, the safety seat body 2 of the safety seat installed on the vehicle seat is facing the front of the vehicle. It goes without saying that the safety seat body can only be used in the rearward-facing position to ensure the safety of infants or children under four years of age. However, the safety seat body can be used in both the rearward-facing and forward-facing versions. In the safety seat according to the present disclosure, the child safety seat body or the infant safety seat body can be removed from the safety seat base 1 only in the rearward-facing state, thereby preventing misuse and a potential safety hazard.

[0017] As in the Fig. 3 and Fig. 4, the upper cover 108 of the turntable 102 is provided with an engagement groove 103. The engagement mechanism 100 is mounted inside the turntable 102, that is, in a space defined by the upper cover 108 and the lower cover 109, and a locking hook 110 (described in detail later) of the engagement mechanism 100 projects into the engagement groove 103. On the underside of the safety seat body 2, there is an engagement rod (not shown in the figure) that engages with the locking hook 110. The engagement rod is engaged in the engagement groove 103 and locked with the locking hook 110 to realize engagement and locking between the turntable 102 and the safety seat body 2. When the engagement rod is released from the locking hook 110, the safety seat body 2 can be detached from the turntable 102.

[0018] In the present disclosure, the turntable 102, as shown in Fig. 2 and Fig. 3, provided with four engagement grooves 103. A front and a rear end of the turntable 102 are each provided with two engagement grooves 103. The two engagement grooves 103 at each end are spaced apart from each other. It should be noted that the front and rear ends here refer to the front and rear of the turntable 102, not to the front and rear of the turntable 102 with respect to a traveling direction of the vehicle. Specifically, the front end of the turntable 102 refers to an end that engages with an end of the safety seat body 2 that is remote from a backrest thereof, and the rear end of the turntable 102 refers to an end that engages with an end of the safety seat body 2 that is adjacent to the backrest thereof. For example, when the safety seat body 2, as shown in Fig. 2, with the turntable 102 rotating to the first rotation position, the safety seat body 2 is in a rearward facing state. In the rearward facing state, the rear end of the turntable 102 is located near a screen 101a (which will be described in detail later), so that a higher end of the Fig. 2 is adjacent to the screen 101a, while the front end of the turntable 102 is remote from the screen 101a, so that a lower end of the Fig. 2 is removed from the screen 101a. As shown in Fig. As shown in Figure 3, the front end of the turntable 102 is located near the screen 101a, while the rear end of the turntable 102 is away from the screen 101a when the turntable 102 rotates from the first rotation position to the second rotation position. Accordingly, four engagement mechanisms 100 are provided, each engagement mechanism 100 is arranged correspondingly to an engagement groove 103, and the locking hook 110 of each engagement mechanism 100 projects into an engagement groove 103. The underside of the safety seat body 2 is provided with four or two engagement rods. The four or two engagement rods are respectively engaged with the four engagement grooves 103. Obviously, the number of engagement grooves 103 and engagement rods is not limited thereto, but can be flexibly adjusted as needed.

[0019] As in the Fig. 4 and Fig. 5, the four engagement mechanisms 100 in the present disclosure have the same structure. Furthermore, the two engagement mechanisms 100 arranged at the front end of the turntable 102 are arranged symmetrically, and the two engagement mechanisms 100 arranged at the rear end of the turntable 102 are arranged symmetrically. More specifically, the safety seat base 1 is provided with vertically extending fixed assemblies 104. The engagement mechanisms 100 are arranged on the fixed assemblies 104, respectively. Each of the fixed assemblies 104 includes a first fixed plate 104a and a second fixed plate 104b, which are opposed to each other and fixed to the safety seat base 1. The fixed assembly 104 is arranged, for example, on the turntable 102.One of the engagement mechanisms 100 is taken as an example to describe its specific structure in detail below.

[0020] As in the Fig. 5 and Fig. 7, the engagement mechanism 100 includes a locking hook 110, a fixed member 120, a third return member 130, a stopper 140, and a fourth return member 150.

[0021] In particular, the locking hook 110, as shown in the Fig. 6 and Fig. 8, the locking hook 110 is pivotally connected between the first fixed plate 104a and the second fixed plate 104b via a first pivot shaft 113 and has a release position and a lock position. The locking hook 110 has an approximately E-shaped structure including a second connecting part 114 and a hook part 111, a first sliding part 115, and a second sliding part 116, which are sequentially connected to one side of the second connecting part 114. A locking groove 112 is formed between the hook part 111 and the first sliding part 115. The hook part 111 projects into the engagement groove 113. When the locking hook 110 is in the lock position, the engagement rod can be restricted in the locking groove 112. When the locking hook 110 is in the release position, the engagement rod can be disengaged from the locking groove 112.

[0022] As in the Fig. As shown, the fixed element 120 and the locking hook 110 are fixedly connected and both pivotally mounted between the first fixed plate 104a and the second fixed plate 104b via the first pivot shaft 113. As shown in the Fig. As shown, the third return element 130 abuts the fixed assembly 104 and the locking hook 110, and the third return element 130 biases the locking hook 110 to rotate toward the release position. Specifically, the third return element 130 has two ends on one side. The two ends are attached to a rivet 104c that passes through the first fixed plate 104a and the second fixed plate 104b. One end portion of the third return element 130 on the other side is attached to a joint between the second connecting portion 114 and the second sliding portion 116. In this embodiment, the third return element 130 is a torsion spring.

[0023] In particular, as in Fig. As shown in Figure 14, one end of the stopper 140 is pivotally connected between the first fixed plate 104a and the second fixed plate 104b. A second pivot shaft 142 of the stopper 140 is parallel to the first pivot shaft 113 of the locking hook 110. The other end of the stopper 140 projects toward the fixed member 120 and is configured to abut against the fixed member 120, so that the locking hook 110 is held in the release position to prevent rotation of the locking hook 110 toward the closing position by manual pushing. The fourth return member 150 is fixed to the second pivot shaft 142 of the stopper 140, with both ends abutting against the first fixed plate 104a and the stopper 140, respectively. The fourth return element 150 biases the stopper 140 in a direction in which it abuts the fixed element 120.More specifically, the stopper 140 includes a protruding portion 141 that protrudes toward the locking hook 110. The protruding portion 141 projects into the engagement groove 103. In this embodiment, the fourth return element 150 is a torsion spring.

[0024] As in Fig. As shown in Figure 14, when the engaging rod moves into the engaging groove 103, it first pushes the stopper 140, so that the stopper 140 rotates against an elastic force of the fourth return member 150, and the stopper 140 no longer abuts the fixed member 120. Then, the engaging rod pushes the first sliding part 115, so that the locking hook 110 rotates against an elastic force of the third return member 130, the hook part 111 is rotated to be located above the engaging rod, and the locking hook 110 is in the closed position. In this case, a sliding member 210 (described in detail later) in the link mechanism 200 engages the second sliding part 116 of the locking hook 110 to maintain the locking of the locking hook 110 stable, as shown in Figure 14. Fig. 8 shown.

[0025] Accordingly, the stopper 140 rotates under the elastic force of the fourth return element 150 after the sliding element 210 has moved to detach from the second sliding part 116 of the locking hook 110, and at the same time, the locking hook 110 is rotated to the release position under the elastic force of the third return element 130, so that the stopper 140 again begins to abut against the fixed element 120 attached to the locking hook 110, as shown in Fig. 14. The locking hook 110 is held in the release position by the stopper 140 abutting the fixed element 120. Through the combined action of the third return element 130 and the fourth return element 150, the locking hook 110 can be quickly rotated into the release position, thus reducing labor and speeding up the release of the engagement rod and enabling rapid disassembly of the safety seat body 2.

[0026] As in Fig. 18 to Fig. As shown in Figure 20, the connecting mechanism 200 is arranged between the turntable 102 and the mounting base 101. The connecting mechanism 200 includes a sliding element 210, a second return element 220, a drive element 230, a reinforcing pin 240, and a fifth return element 250.

[0027] In particular, the sliding element 210, as shown in the Fig. 9 to 12, is movably arranged in the turntable 102. For example, the sliding member 210 is movable along a front and rear direction of the turntable 102, and the sliding member 210 is configured to rotate together with the turntable 102. The sliding member 210 is configured to abut against four locking hooks 110 to simultaneously hold the four locking hooks 110 in the closed position, as shown in Fig. 7 shown.

[0028] As in the Fig. 5 to 7, the sliding element 210 has an approximately rectangular shape. The four corners of the sliding element 210 are each provided with a blocking part 211. The four blocking parts 211 each abut the four locking hooks 110. As shown in the Fig. 8 and Fig. 12, the blocking parts 211 are each provided with a sliding slope 211a and an engagement rib 211b. The sliding element 210 has a locked and an unlocked position. As shown in the Fig. 5 and Fig. 8, the four blocking parts 211 of the sliding element 210 simultaneously engage the four locking hooks 110 in the closed position, and the engaging ribs 211b on the four blocking parts 211 are respectively engaged with the second sliding parts 116 of the four locking hooks 110. As shown in the Fig. 9 and Fig. 12, when the turntable 102 is in the first rotational position (the safety seat body 2 is in the rearward facing state) and the sliding element 210 is in a Fig. 9, the engaging ribs 211b on the four blocking parts 211 are released from the second sliding parts 116 of the four locking hooks 110, and the four locking hooks 110 pivot into their release position. In this embodiment, the sliding slopes 211a of the four blocking parts 211 each push the second connecting parts 114 of the fourth locking hooks 110 during the sliding of the sliding element 210 into the unlocking position, in order to prevent the third reset elements 130 from being unable to bring the locking hooks 110 into the reset position because the locking hooks 110 have accidentally become stuck. In some embodiments, the sliding slope 211a can also be omitted. As shown in Fig. 9 and Fig. As shown in Figure 12, the four locking hooks 110 then each abut against the four blocking parts 211 to hold the sliding element 210 in the unlocked position. In this way, the four locking hooks 110 are simultaneously driven by a sliding element 210 to realize synchronous locking and unlocking, which simplifies the structure.

[0029] In addition, the second return element 220 is fixed at one end to the sliding element 210 and at the other end to the upper cover 108. As shown in the Fig. 17 and Fig. As shown in Figure 18, the underside of the sliding member 210 is provided with a fixed hook 214, and the underside of the top cover 108 is provided with a fixed column 108a. One end of the second return member 220 is arranged on the fixed hook 214, and the other end of the second return member 220 is inserted into the fixed column 108a. The second return member 220 biases the sliding member 210 so that it slides into the locked position. Due to an elastic force of the second return member 220, the sliding member 210 is always subjected to a force that biases it to abut against the locking hook 110, so that the sliding member 210 can hold the locking hook 110 in the closed position.

[0030] As in Fig. 5, the second return member 220 is a tension spring, but the present disclosure is not limited thereto. In the present disclosure, two second return members 220 are provided that are spaced apart from each other. Each second return member 220 is connected at one end to the slide member 210 and at the other end to the top cover 108. The second return member 220 always exerts a force that pulls the slide member 210 toward a rear end of the top cover 108 of the turntable 102, that is, the slide member 210 is always biased to move toward the rear end of the top cover 108 of the turntable 102.

[0031] When the engagement rod presses on the stopper 140, the stopper 140 rotates and no longer hits the fixed element 120. Then, the engagement rod presses on the first sliding part 115, so that the locking hook 110 rotates above the engagement rod and the locking hook 110 is in the closed position (see Fig. 5 to 8). During this process, both the third return element 130 and the fourth return element 150 are deformed. In the closed position, the locking hook 110 is held in the closed position by the engagement of the sliding element 210 in the second sliding part 116 of the locking hook 110. As shown in the Fig. 9 to 12, the sliding member 210 does not exert any force on the locking hook 110 when the sliding member 210 slides to the unlocking position in the direction indicated by F1, the fourth return member 150 returns to its original shape and drives the stopper 140 to rotate, and the third return member 130 returns to its original shape and drives the locking hook 110 to automatically pivot to the release position in a direction indicated by F3 in Fig. 8, so that the locking hook 110 releases the locking for the engagement rod and allows the engagement rod to move out of the engagement groove 103, whereby the safety seat body 2 can be released from the turntable 102. As shown in the Fig. 13 and Fig. 14, in the unlocking position of the locking hook 110, the stopper 140 abuts the fixed member 120 attached to the locking hook 110 to hold the locking hook 110 in the unlocking position, and the sliding member 210 moves under the force of the second return member 220 in a direction opposite to the direction indicated by F1 until the four blocking parts 211 respectively abut the second sliding parts 116 of the four locking hooks 110 and are held in the unlocking position.

[0032] As in the Fig. 19 and Fig. 20, the sliding member 210 includes a transmission rib 212 on a side facing the mounting base 101. The transmission rib 212 passes through the lower cover 109 and projects into the mounting base 101. In this embodiment, the transmission rib 212 is arranged at a position in the turntable 102 near a front end of the lower cover 109. In this embodiment, the transmission rib 212 is part of the sliding member 210, that is, the sliding member 210 including the transmission rib 212 is an integrally formed structure. In this way, on the one hand, manufacturing and assembly steps can be simplified, and on the other hand, the strength of the transmission rib 212 can also be ensured. In other embodiments, the transmission rib 212 is an independent member of the sliding member 210 and is attached to the sliding member 210 by riveting, welding, or the like.To further improve the strength of the transmission rib 212, a reinforcement pin 240 is additionally embedded and fixed to the transmission rib 212 to extend the service life of the transmission rib 212. Approximately in the center of the sliding member 210 is a thrust convex 213 extending toward the mounting base 101.

[0033] As in the Fig. As shown, the drive element 230 is movably disposed at a position in the mounting base 101 located at its rear end. The drive element 230 is movable, for example, along a front and rear direction of the mounting base 101. The drive element 230 has an approximately rectangular shape. One side of the drive element 230 adjacent to the rear end of the mounting base 101 is connected to the actuation assembly 300 (see Fig. 32), and the other side of the drive member 230 is provided with a second sliding groove 231. Since the mounting base 101 is fixedly connected to the vehicle, it should be noted that the front and rear ends of the mounting base 101 coincide with the front and rear ends of the vehicle's traveling direction. When the turntable 102 rotates to the first rotation position, that is, when the turntable 102 is arranged facing rearward, the transmission rib 212 is positioned in the second sliding groove 231, and the transmission rib 212 is configured to abut against a groove wall of the second sliding groove 231.

[0034] When the turntable 102 rotates to the first rotation position, ie when the turntable 102 is arranged facing backwards, as shown in the Fig. 2 and Fig. 20, and the drive element 230 is moved by the actuating arrangement 300 in a direction designated by F2, the groove wall of the second sliding groove 231 also presses the transmission rib 212 in the direction F2, so that the sliding element 210 also moves in the direction F2. When the sliding element 210 slides in the direction F2 into the unlocking position, the sliding element 210 exerts no force on the locking hook 110, the fourth return element 150 returns to its original shape and drives the stopper 140 to rotate, and the third return element 130 returns to its original shape and drives the locking hook 110 to automatically pivot into the release position in the direction designated by F3 in Fig. 12 so that the locking hook 110 releases the locking for the engagement rod, so that the engagement rod can move out of the engagement groove 103, whereby the safety seat body 2 can be released from the turntable 102.

[0035] When the turntable 102 rotates to the second rotational position, ie when the turntable 102 is arranged in a forward-facing manner as shown in Fig. 3, the sliding member 210 and its transmission rib 212 rotate with the turntable 102 to a position away from the rear end of the mounting base 101, that is, a position away from the driving member 230. Even if the driving member 230 is driven by the actuating assembly 300 to move, the driving member 230 cannot push the transmission rib 212 to move, that is, it cannot drive the sliding member 210 to move, so that the engagement mechanism 100 is unlocked. In this way, the safety seat body 2 can only be in the first rotational position (that is,in the rearward-facing state), which can prevent improper use of the safety seat body in the forward-facing state by the user bringing the safety seat body into engagement with the safety seat base 1 after the child safety seat body is detached in the second rotational position, thereby improving a safety factor.

[0036] As in the Fig. 19 and Fig. As shown in Figure 20, the fifth return element 250 abuts at one end against a side of the drive element 230 adjacent to the rear end of the mounting base 101 and at the other end against the mounting base 101. The fifth return element 250 biases the drive element 230 to move in a direction opposite to a direction in which the drive element 230 is pulled by the actuator assembly 300, that is, in a direction opposite to the direction F2 in the figure. In this embodiment, the fifth return element 250 is a spring.In this way, after the safety seat body 2 is removed from the safety seat base 1 and the actuating element 310 described below is released, the driving element 230 is driven back by the fifth return element 250, so that the groove wall of the second sliding groove 231 of the driving element 230 no longer presses on the transmission rib 212 of the sliding element 210, so that the driving element 230 exerts no force on the sliding element 210, and the sliding element 210 moves in the direction opposite to the direction indicated by F1 under the force of the second return element 220 until the four blocking parts 211 respectively abut the second sliding parts 116 of the four locking hooks 110 and are held in the unlocked position. In this embodiment, the direction F1 is substantially the same as the direction F2.

[0037] In another embodiment of the present disclosure, a link mechanism 200' is provided. The link mechanism 200' is disposed between the turntable 102 and the mounting base 101. The link mechanism 200' includes a sliding member 210', a second return member 220', a drive member 230', a link member 240', and a fifth return member 250'.

[0038] In particular, the sliding element 210', as shown in Fig. 27 to 28, is movably arranged in the turntable 102, and the sliding element 210' is configured to abut against the four locking hooks 110 in order to hold the four locking hooks 110 in the closed position at the same time.

[0039] The sliding element 210' has an approximately rectangular shape. Four corners of the sliding element 210' are each provided with a blocking part 211, and the four blocking parts 211 abut the four locking hooks 110, respectively. The blocking parts 211 are each provided with a sliding slope 211a and an engagement rib 211b. The sliding element 210' has a locked and an unlocked position. When the sliding member 210' is in the closed position, its four blocking parts 211 simultaneously hold the four locking hooks 110 in the closed position, and the engaging ribs 211b on the four blocking parts 211 are respectively engaged with the second sliding parts 116 of the four locking hooks 110. When the sliding member 210' slides in the direction indicated by F1 in the figure to the unlocked position, the four locking hooks 110 pivot to their release position.In this embodiment, when the sliding element 210' slides into the unlocked position, the sliding slopes 211a of the four blocking parts 211 push the second connecting parts 114 of the four locking hooks 110 to prevent the third return element 130 from being unable to return the locking hooks 110 to the reset position because the locking hooks 110 have accidentally become stuck. In some embodiments, the sliding slope 211a can also be omitted. The four locking hooks 110 then each abut the four blocking parts 211 to hold the sliding element 210' in the unlocked position, and the four locking hooks 110 are simultaneously driven by the sliding element 210' to realize the locking and unlocking synchronously, which simplifies the structure.

[0040] As in Fig. 27 and Fig. As shown in Figure 28, a side of the sliding member 210' facing the mounting base 101 is provided with a first sliding groove 212'. In this embodiment, the first sliding groove 212' is arranged at a position corresponding to a position of the lower cover 109 adjacent to a rear end of the lower cover 109. Approximately in the center of the sliding member 210' is a pushing convexity 213' extending toward the mounting base 101.

[0041] The second return member 220' is fixed at one end to the slide member 210' and at the other end to the top cover 108. Furthermore, a specific structure and function of the second return member 220' are the same as those of the second return member 220 in the above embodiment, and details thereof will not be described again here.

[0042] As in the Fig. As shown in Figures 27 to 28, the drive member 230' is movably disposed at a position in the mounting base 101 near the front end thereof. The drive member 230' has an approximately rectangular shape. One side of the drive member 230' adjacent to the front end of the mounting base 101 is connected to the actuating assembly 300, and the other side of the drive member 230' is provided with a second sliding groove 231'.

[0043] The connecting member 240' is pivotally connected to the turntable 102. The drive member 230' is configured to drive the connecting member 240' to rotate when the turntable 102 rotates to the first rotational position, and the rotation of the connecting member 240' drives the sliding member 210' to slide, thereby causing the engagement mechanism 100 to unlock. The connecting member 240', as a specific example, includes a first and a second end. When the turntable 102 rotates to the first rotational position, the first end abuts the sliding member 210' and the second end abuts the drive member 230'.

[0044] In particular, the connecting element 240', as shown in Fig. 27 and Fig. 28, pivotally connected to the lower cover 109 and disposed at a position adjacent to the rear end of the lower cover 109. The connecting member 240' has an approximately strip shape. The two ends of the connecting member 240' are a first end 241' and a second end 242', respectively. The first end 241' is located in the first sliding groove 212'. When the turntable 102 rotates to the first rotation position, that is, when the turntable 102 is disposed rearward, the second end 242' is positioned in the second sliding groove 231' of the drive member 230', and the first end 241' is configured to abut against a groove wall of the first sliding groove 212', and the second end 242' is configured to abut against a groove wall of the second sliding groove 231'. When the turntable 102 rotates to the first rotational position, ie when the turntable 102 is arranged in a rearward-facing manner as shown in the Fig. 29 and Fig. 30 when the drive element 230' is driven to move in a direction indicated by F2' (opposite the direction F2 shown in Fig. 20) is driven by the actuating arrangement 300, the groove wall of the second sliding groove 231' presses the connecting element 240' to move it into a Fig. 28, and the first end 241' of the connecting element 240' pushes the sliding element 210' to move it toward the unlocked position in the direction indicated by F1. The sliding element 210' exerts no force on the locking hook 110, so that the fourth return element 150 returns to its original shape and causes the stopper 140 to rotate, and the third return element 130 returns to its original shape and causes the locking hook 110 to automatically pivot to the release position, in the direction shown in Fig. 12 with F3, so that the locking hook 110 releases the locking for the engagement rod and allows the engagement rod to move out of the engagement groove 103, whereby the safety seat body 2 can be released from the turntable 102. When the turntable 102 rotates to the second rotation position, ie when the turntable 102 is arranged in a forward-facing manner, as shown in Fig. 31, the connecting member 240' rotates with the turntable 102 to a position away from the front end of the mounting base 101, i.e., to a position away from the drive member 230'. Even if the drive member 230' is driven by the actuating assembly 300 to move in the direction indicated by F2', the drive member 230' cannot drive the connecting member 240' to rotate and thus cannot drive the sliding member 210' to move to cause the engagement mechanism 100 to be unlocked. In other words, when the turntable 102 rotates to the second rotational position, the second end 242' and the drive member 230' are spaced apart from each other and cannot contact each other. In this way, the safety seat body 2 can be detached from the safety seat base 1 only when it is rotated to the first rotational position (i.e.,when in the rearward-facing state), which can prevent improper use of the toddler safety seat body in the forward-facing state caused by the user engaging the toddler safety seat body with the safety seat base 1 after the child safety seat body in the second rotation position is removed, thereby improving the safety factor.

[0045] As in the Fig. 27 and Fig. 28, the fifth return element 250' abuts with one end against a side of the drive element 230' that is adjacent to the front end of the mounting base 101, and with the other end against the mounting base 101. The fifth return element 250' biases the drive element 230' to move in a direction opposite to a direction in which the drive element 230' is pulled by the actuating assembly 300, that is, in a direction corresponding to the direction F2' in Fig. 28 is opposite.

[0046] As in the Fig. 32 to 34, the actuating arrangement 300 comprises an actuating element 310, a pulling element 320, a pivot shaft and a sixth return element 340 (see Fig. 33).

[0047] As in Fig. 32, two operating elements 310 are provided, each movably disposed on two sides of the mounting base 101 and abutting against a side surface of the mounting base 101 to facilitate operation by the user. Of course, in other embodiments, the operating element 310 may also be disposed at the front end of the mounting base 101. The operating element 310 located on the side of the mounting base 101 is convenient to operate compared to the operating element 310 located at the front end of the mounting base 101. The front end of the mounting base 101 is often difficult to reach due to the obstruction of the safety seat body 2 and the vehicle seats in a front row, while the side of the mounting base 101 directly faces an operator and is thus easier to operate. The operating element 310 is, for example, a handle.

[0048] As in the Fig. 33 and Fig. 34, an operating member 310 is taken as an example to specifically introduce the structure of the operating member 310 below. The operating member 310 includes an operating part 311, a pivoting part 312, and a first connecting part 313, which are arranged one behind the other. Two sides of the mounting base 101 are each provided with a pivot shaft (not shown in the figure). Each operating member 310 is pivotally connected to the pivot shaft on one of the sides via the pivoting part 312, and the operating part 311 and the first connecting part 313 are respectively arranged on two sides of the pivot shaft. The operating part 311 is operable, and the first connecting part 313 is configured to be connected to the pulling member 320.In this way, when the actuating part 311 rotates around the pivot shaft, it can simultaneously rotate the first connecting part 313 and set the pulling element 320 in motion.

[0049] As in Fig. 32, two tension elements 320 are provided, and each tension element 320 is connected between the first connecting part 313 of the actuating element 310 on one side and the drive element 230. When the safety seat base 1 comprises the connecting mechanism 200', each tension element 320 is connected between the first connecting part 313 and the drive element 230', as shown in the Fig. When the actuating part 311 is actuated, the actuating element 310 is rotated about the pivot shaft, whereby the pulling element 320 is set in motion via the first connecting part 313, and the pulling element 320 then pulls the driving element 230 in the direction F2 in Fig. 24. In an alternative example, when the actuating part 311 is actuated, the actuating element 310 is rotated about the pivot shaft, whereby the pulling element 320 is set in motion via the first connecting part 313, and the pulling element 320 then pulls the drive element 230' in the direction F2' in Fig. 30. In this embodiment, the pulling element 320 is configured to pull the driving element 230 by upward actuation and movement of the actuating part 311, as shown in Fig. 36, or the pulling element 320 can pull the driving element 230' by upward actuation and movement of the actuating part 311, as in Fig. 38. Of course, the actuating part 311 can also be operated in other ways in other embodiments. The tension element 320 is a steel cable, but is not limited thereto, but can also be made of other similar components with high toughness and strength. As shown in Fig. 36, the mounting base 101 is provided with a guide member 105. The guide member 105 is provided with an arcuate guide part. One end of the pulling member 320 is connected to the operating part 311 of the operating member 310 on both sides, and the other end of the pulling member 320 enters the mounting base 101 along a direction designated by F6 (ie, a lateral width direction of the mounting base 101) and, under the guidance of the guide member 105, bypasses the guide part and is connected to the driving member 230 along a direction designated by F7 (ie, a longitudinal direction of the mounting base 101).

[0050] In addition, two sixth return elements 340 are provided. Each sixth return element 340 is arranged between one of the operating elements 310 and the mounting base 101. The sixth return element 340 always causes the operating element 310 to rotate to a position where the operating element 310 is not operated. The sixth return element 340 is a torsion spring. One coil of the torsion spring is supported on the pivot shaft, and two ends of the torsion spring abut the operating part 311 and the mounting base 101, respectively. In this way, the torsion spring is deformed when the operating part 311 is moved upward (or downward). When the external force applied to the operating part 311 is removed, the operating part 310 can be returned by the elastic force of the sixth return element 340.

[0051] As in the Fig. As shown, the indicator mechanism 400 includes a detector 410, a first return element 420, a sensor 430, and a controller (not shown in the figure). Regardless of whether the safety seat base 1 includes the linking mechanism 200 or the linking mechanism 200', the indicator mechanism 400 has the same structure and can perform the same function. That is, when comparing an embodiment in which the safety seat base 1 includes the linking mechanism 200 and an embodiment in which the safety seat base 1 includes the linking mechanism 200', the only difference is different positions of the indicator mechanism 400 with respect to the linking mechanism 200 and the linking mechanism 200'. Therefore, the indicator mechanism 400 will be described below using an example in which the safety seat base 1 includes the linking mechanism 200.

[0052] As in Fig. 20, the detector 410 is specifically a push button movably disposed between the turntable 102 and the mounting base 101. For example, the detector 410 is specifically disposed so as to be movable up and down between the turntable 102 and the mounting base 101. One end of the detector 410 located in the mounting base 101 (i.e., a lower end of the detector 410) is provided with a detecting rib 411. In this embodiment, the sensor 430 is a photoelectric sensor 430. The photoelectric sensor 430 is disposed in the mounting base 101 and is located below the detector 410. The photoelectric sensor 430 includes a transmitting end 431 and a receiving end 432 arranged opposite each other. The transmitting end 431 is configured to send an optical signal to the receiving end 432. As in the Fig. 22, Fig. 26 and Fig. 40, an approximately central portion of the detector 410 is provided with a push block 414. The push block 414 can extend at least partially into the turntable 102 and abut against the push convexity 213. The push block 414 includes a sliding recess 412. The sliding element 210, as it slides through the push convexity 213, presses against the sliding slope 412 of the push block 414 to move the detector 410 in a direction that intersects the sliding direction of the sliding element 210. In this case, the detection rib 411 can protrude into the mounting base 101 and be detected by the sensor 430. In this embodiment, the inclination direction of the sliding surface 412 runs from the rear end of the mounting base 101 to the front end of the mounting base 101.

[0053] As in the Fig. 39 and Fig. 40, one end of the detector 410 positioned in the turntable 102 (i.e., an upper end of the detector 410) is provided with a projection 413 projecting along a radial direction thereof. The two ends of the first return member 420 abut the bottom cover 109 and the tab 413, respectively. The first return member 420 always causes the detector 410 to move in a direction opposite to a direction in which the detector 410 is pushed by the slide member 210. In other words, the first return member 420 is disposed between the detector 410 and the turntable 102, and the first return member 420 always causes the detector 410 to rotate in a direction away from the mounting base 101. In this embodiment, the first return member 420 is a spring. Optionally, a plurality of first return elements 420 are provided.In this embodiment, for example, four tabs 413 evenly spaced in the circumferential direction and correspondingly four first return elements 420 are provided. In other embodiments, more than four or fewer than four first return elements 420 may be provided.

[0054] When the safety seat body 2 is mounted on the safety seat base 1, i.e., the engagement rod is engaged with the locking hook 110, the sliding element 210 moves under the elastic force of the second return element 220 into the locking position opposite to the direction indicated by F1, so that the locking hook 110 is held in the closed position. At the same time, the sliding element 210 pushes the detector 410 in a direction F5 through the thrust convex 213, as shown in Fig. 20 and Fig. 22. That is, the detection rib 411 moves in the direction F5 and is located between the transmitting end 431 and the receiving end 432. The receiving end 432 cannot receive the optical signal from the transmitting end 431 due to the blockage of the detection rib 411 and sends the information that the turntable 102 and the safety seat body 2 are engaged to the controller.

[0055] When the actuating assembly 300 is actuated and the sliding element 210 slides over the drive element 230 in the direction designated F1 into the unlocked position, the locking hook 110 rotates into the release position so that the locking hook 110 releases the lock for the engagement rod, allowing the safety seat body 2 to move away from the turntable 102. As shown in the Fig. 24 and Fig. 26, in this case, the thrust convex 213 no longer presses on the detector 410, the detector 410 moves in a direction away from the sensor 430 driven by the first return element 420, so that the detection rib 411 between the transmitting end 431 and the receiving end 432 retracts, and the receiving end 432 receives the optical signal from the transmitting end 431, that is, sends information indicating that the turntable 102 and the safety seat body 2 are not engaged to the controller, or stops sending the information indicating that the turntable 102 and the safety seat body 2 are engaged to the controller. The stopper 140 abuts the fixed member 120 attached to the locking hook 110 to hold the locking hook 110 in the release position so that the locking hook 110 cannot be closed.The sliding member 210 can move in the direction opposite to the direction indicated by F1 under the elastic force of the second return member 220 until the four blocking parts 211 respectively abut against the second sliding parts 116 of the four locking hooks 110 and are held in the unlocked position. In this case, since the sliding member 210 is located in the unlocked position closer to the rear end of the mounting base 101 (i.e., on the right side in . Fig. 26) when the sliding element 210 is in the locking position and the pushing convex 213 is still unable to abut the nose 413 of the detector 410, the detecting rib 411 is still not arranged between the transmitting end 431 and the receiving end 432.

[0056] In this embodiment, the controller transmits the information indicating that the turntable 102 and the safety seat body 2 are engaged or the information indicating that the turntable 102 and the safety seat body 2 are not engaged, which is transmitted from the sensor 430, to a mobile terminal such as a mobile phone to remind the user of an engaged state of the safety seat body 2. Alternatively, in other embodiments, as shown in FIGS. Fig. 2 and Fig. 3, a screen 101a is arranged on the mounting base 101. The controller displays on the screen 101a the information that the turntable 102 and the safety seat body 2 are engaged or the information that the turntable 102 and the safety seat body 2 are not engaged, which is sent from the sensor 430, to remind the user of the engaged state of the safety seat body 2.

[0057] Although the connecting mechanism 200 and the connecting mechanism 200' have different structures, the connecting mechanism 200 and the connecting mechanism 200' can perform the same function. Therefore, a use procedure of the safety seat will be described here only by an example in which the connecting mechanism 200 is applied to the safety seat, and the use procedure is used as a reference for understanding a use procedure of the safety seat to which the connecting mechanism 200' is applied.

[0058] When the turntable 102 rotates to the first rotational position (ie, is arranged rearwardly), as in Fig. 2, and the safety seat body 2 is to be disassembled from the safety seat base 1, the actuating element 310 is actuated such that the actuating element 310 pulls the driving element 230 in the direction F2 through the pulling element 320. Then, the driving element 230 also pushes the sliding element 210 in the direction F1 to the unlocking position, so that the sliding element 210 exerts no force on the locking hook 110, the fourth return element 150 returns to its original shape and drives the stopper 140 to rotate, and the third return element 130 returns to its original shape and drives the locking hook 110 to automatically rotate along the direction F3 indicated in FIG.8, so that the locking hook 110 releases the lock for the engagement rod, allowing the engagement rod to move out of the engagement groove 103 of the locking hook 110 and the safety seat body 2 to move away from the turntable 102. In this case, the locking hook 110 is held in the release position by the third return element 130 and by the stopper 140 abutting the fixed element 120. The user releases the actuating element 310, so that the sliding element 210 can move under the force of the second return element 220 in the direction opposite to that indicated by F1, until the four blocking parts 211 each abut the second sliding parts 116 of the four locking hooks 110 and are held in the unlocked position.

[0059] When the safety seat body 2 is to be reassembled onto the safety seat base 1, the engagement rod is caused to press on the stopper 140 to cause the stopper 140 to rotate and no longer press on the fixed member 120, and then the engagement rod presses on the first sliding part 115 so that the locking hook 110 rotates to be located above the engagement rod, and the locking hook 110 is in the closed position, as shown in the Fig. 9 to 12. During this process, both the third return element 130 and the fourth return element 150 are deformed. The locking hook 110, when in the closed position, is held in the closed position by the engagement of the sliding element 210 with the second sliding part 116 of the locking hook 110, which is driven by the second return element 220, as shown in Fig. 8. At the same time, the sliding element 210 pushes the detector 410 through the shear convex 213, so that the detector 410 moves in the direction F5 until the detection rib 411 is detected by the sensor 430, as shown in Fig. 20. The sensor 430 then sends the information that the turntable 102 and the safety seat body 2 are engaged to the controller. The controller transmits the information that the turntable 102 and the safety seat body 2 are engaged to a mobile terminal, e.g., a mobile phone of the user, or displays the information that the turntable 102 and the safety seat body 2 are engaged on the screen 101a of the mounting base 101 to remind the user.

[0060] When the turntable 102 rotates to the second rotational position (ie, arranged forward), as in Fig. 3, the transmission rib 212 of the sliding member 210 rotates with the turntable 102 to a position away from the front end of the mounting base 101, that is, to a position away from the drive member 230. In this case, even if the drive member 230 is driven by the actuator assembly 300 to move along the direction indicated by F2, it cannot push the transmission rib 212 to move to cause the engagement mechanism 100 to be unlocked because the drive member 230 and the transmission rib 212 are spaced apart from each other and cannot contact each other. In this way, the safety seat body 2 can be removed only when it is rotated to the first rotational position (that is,when it is in the rearward-facing state), whereby misoperation caused by the safety seat body being in the forward-facing state when the user brings the safety seat body into engagement with the safety seat base 1 after the safety seat body has been removed in the second rotational position (e.g., in the forward-facing state), can be prevented, thereby improving the safety factor.

[0061] Of course, the specific arrangement positions and orientations of related parts of the above engagement mechanism 100 and the linking mechanism 200 (or the linking mechanism 200') are merely exemplary, and adaptable modifications to the above embodiments made by those skilled in the art based on the above explanations are still within the scope of the present disclosure. For example, the transmission rib 212 may also be arranged at a position in the bottom cover 109 near its rear end, the drive member 230 is correspondingly movably arranged at a position in the mounting base 101 near its front end, and the sliding member 210 and the engagement mechanism 100 are correspondingly adjusted so that movement of the sliding member 210 along the opposite direction of F1 can cause unlocking of the engagement mechanism 100.In short, all variants of the above-mentioned embodiments are possible as long as the engagement mechanism 100 can be caused to unlock when the turntable 102 is in the first rotational position and the engagement mechanism 100 cannot be caused to unlock when the turntable 102 is in the second rotational position.

[0062] A technical effect of the above-mentioned safety seat is described here only by way of an example in which the linking mechanism 200 is applied to the safety seat, and the technical effect is used as a reference for understanding a technical effect of the safety seat to which the linking mechanism 200' is applied.

[0063] Specifically, in the above-mentioned safety seat base 1, the drive element 230 in the connection mechanism 200 is operable when the turntable 102 rotates to the first rotational position relative to the mounting base 101 (e.g., to the reverse-facing state). Since the sliding element 210 protrudes at least partially from the mounting base 101 to be drivingly connected to the drive element 230, or the drive element 230 protrudes at least partially from the turntable 102 to be drivingly connected to the sliding element 210, the drive element 230 can directly move the sliding element 210 to drive the engagement mechanism 100 for unlocking. In this case, the safety seat base 1 is decoupled from the safety seat body 2, and the safety seat body 2 can be removed from the safety seat base 1. However, when the turntable 102 is rotated to the second rotational position relative to the mounting base 101 (e.g.In the forward-facing state (e.g., in the forward-facing state), the engagement mechanism 100 remains locked because the drive member 230 is not abutted against the slide member 210, and the safety seat body 2 cannot be disassembled from the safety seat base 1 even if the drive member 230 is set in motion because the drive member 230 does not abut the slide member 210. With this arrangement, misuse caused by the infant safety seat being in the forward-facing state when the user engages the infant safety seat with the safety seat base 1 after removing the infant safety seat in the second rotational position (e.g., in the forward-facing state) can be prevented, thereby improving the safety factor.

[0064] The safety seat base 1 according to the present application can also be connected to an adjustment mechanism for an ISOFIX connection. In general, the ISOFIX connection is suitable for being attached to a connecting component provided for this purpose in a vehicle. The adjustment mechanism will be described below with reference to the Fig. 41 to 49 are described in more detail.

[0065] Fig. 41 and Fig. 42 schematically show a partial structure of the safety seat according to an embodiment of the present application. The safety seat according to the present application comprises an adjustment mechanism S10 and a safety seat base 1, as shown in Fig. 41. The safety seat base 1 includes a lower base cover S201. The lower cover of the base S201 defines a mounting cavity S2011.

[0066] The adjustment mechanism S10 is located in the mounting cavity S2011 and includes a support S100. The support S100 is connected to the bottom cover of the base S201. In addition, the adjustment mechanism S10 also includes a slide bar assembly S200. The slide bar assembly S200 includes two slide bars S210. The two slide bars S210 both extend along a longitudinal direction L of the safety seat (or the safety seat base 1) and can be spaced apart along a width direction of the safety seat (a Fig. 41). One end of each slide bar S210 is slidably connected to the support S100 and releasably locked with respect to the support S100, and the other end of each slide bar S210 is connected to the ISOFIX connection S2, for example, an ISOFIX connecting rod. The ISOFIX connection S2 is suitable for attachment to the designated connecting component in the vehicle.

[0067] Since the ISOFIX connection S2 is slidably connected to the support S100 of the safety seat via the slide bar S210, the distance between the front end of the ISOFIX connection S2 and the support S100 (i.e., the length of the ISOFIX connection S2 protruding from the support S100) can be set by locking the slide bar S210 to the support S100, and the distance between the front end of the ISOFIX connection S2 and the support S100 can be adjusted by detaching the slide bar S210 from the support S100. In some embodiments, the connection component adapted to the ISOFIX connection S2 in the vehicle, such as an ISOFIX snap ring, can be arranged in a vehicle seat. In this way, the ISOFIX connection S2 can be attached to the vehicle seat, allowing the safety seat to be mounted on the vehicle seat.

[0068] In some embodiments relating to Fig. 43, the slide bar assembly S200 further includes a connector S220. The two slide bars S210 are both connected to the connector S220. In this embodiment, the connector S220 is arranged between the two slide bars S210, and the connector S220 is formed by extending one of the slide bars S210 to the other of the slide bars S210. The synchronous sliding of the two slide bars S210 can be realized by connecting the two slide bars S210 through the connector S220. The connector S220 is a connecting plate or a connecting rod, such as a connecting plate or a connecting rod made of iron.

[0069] In some embodiments (see Fig. 41 and Fig. 42), the support S100 further comprises two sliding sleeves S120 corresponding to the two sliding rods S110. The two sliding sleeves S120 are located on two opposite sides of the support S100. Each of the two sliding sleeves S120 is provided with a through-hole (not shown), and one end of the corresponding sliding rod S210 passes through the through-hole and is slidably connected to the support S100. In this way, a sliding connection of the sliding rod S210 relative to the support S100 can be realized. In particular, the sliding sleeve S120 can be connected to the support S100 by welding, screwing, or engaging.

[0070] As in the Fig. 41 and Fig. 42, the adjustment mechanism S10 further includes an adjustment assembly S300 and an actuating part S400. The adjustment assembly S300 and the actuating part S400 are configured to control the locking or unlocking between the slide bar assembly S200 and the support S100. In this embodiment, the adjustment assembly S300 includes a linkage S320 and two engaging elements S310. The two engaging elements S310 may be spaced apart along the width direction of the safety seat. The two engaging elements S310 are configured to releasably lock the slide bar assembly S200 to the support S100, and the two engaging elements S310 are movably connected to the linkage S320.The linkage S320 is designed to drive one of the two engagement elements S31, which is driven by the other of the two engagement elements S310, so that the two engagement elements S310 move synchronously to lock the slide bar assembly S200 to the support S100 or to release the slide bar assembly S200 from the support S100.

[0071] In particular, a connection of the connecting element S320 can cause the two engagement elements S310 to move synchronously to lock the slide bar assembly S200 to the support S100 or to release the slide bar assembly S200 from the support S100. In some embodiments relating to Fig. 41, when each of the two engagement elements S310, driven by the linkage S320, moves in a direction of locking the slide bar assembly S200 to the support S100, the other of the two engagement elements S310 can be driven to move in the direction of locking the slide bar assembly S200 to the support S100, thereby locking the slide bar assembly S200 to the support S100. When each of the two engagement elements S310, driven by the linkage S320, moves in a direction of releasing the slide bar assembly S200 from the support S100, the other of the two engagement elements S310 can be driven to move in the direction of releasing the slide bar assembly S200 from the support S100, thereby releasing the slide bar assembly S200 from the support S100.

[0072] As in Fig. 41 and Fig. 42, the actuating part S400 comprises two actuating elements S410, each of which is connected to the two engagement elements S310. To simplify the description, the two actuating elements S410 may be a first actuating element S410a and a second actuating element S410b, and the two engagement elements S310 may be a first engagement element S310a and a second engagement element S310b (see Fig. 44). The first operating element S410a and the second operating element S410b may be spaced apart on two sides of the safety seat in the width direction thereof. Furthermore, the first operating element S410a and the second operating element S410b are arranged on opposite sides of the connection S320. Both the first engaging element S310a and the second operating element S410b are arranged on the same side of the connection S320, and the second engaging element S310b and the first operating element S410a are arranged on the same side of the connection S320.

[0073] The actuating part S400 is configured to actuate either the first actuating element S410a or the second actuating element S410b, whereby the two engagement elements S310 (i.e., the first actuating element S310a and the second actuating element S310b) can be caused to synchronously release the slide bar assembly S200 from the support S100. In this way, by actuating one of the two actuating elements S410a and the second actuating element S410b and by transmitting the connecting element S320, the two actuating elements S310 (i.e., the first actuating element S310a and the second actuating element S310b) can be set in synchronous movement to release the slide bar assembly S200 from the support S100, thus achieving unlocking between the safety seat and the ISOFIX connection S2.The unlocking process is simple and user-friendly and is characterized by a simple structure and low manufacturing costs.

[0074] However, the present application is not limited to the above-mentioned embodiments. In another embodiment, the operating part S400 may also include only one operating element S410. Since the two engaging elements S310 can be connected to each other even if only one operating element S410 is provided, the two engaging elements S310 can be driven synchronously to lock the slide rod assembly S200 to the support S100 or to release the slide rod assembly S200 from the support S100. The operating element S410 may be positioned on either side of the safety seat in its width direction or arranged at another position according to actual requirements, which are not limited in the present application.

[0075] In some embodiments (see Fig. 44), the adjustment assembly S300 further comprises two elastic elements S500, each corresponding to the two engagement elements S310. Each of the two elastic elements S500 is adapted to preload the respective engagement element S310 to cause the engagement element S310 to always tend to move in a direction in which the slide bar assembly S200 is locked to the support S100.

[0076] In this way, when the user does not operate the first operating member S410a and the second operating member S410b, the engaging member S310 is driven by the elastic action of the elastic member S500, so that the engaging member S310 always tends to move in the direction of locking the slide bar assembly S200 to the support S100, whereby it can be ensured that the slide bar assembly S200 is always locked to the support S100 when no external force acts on the first operating member S410a and the second operating member S410b, thereby maintaining a length of the ISOFIX connection S2 protruding from an outer surface of the lower base cover S201.

[0077] It is easy to understand that upon actuation of the first actuating element S410a or the second actuating element S410b, an elastic force of the elastic element S500 must be overcome in order for the two engaging elements S310 to release the slide bar assembly S200 from the support S100. When the external force acting on the first actuating element S410a and the second actuating element S410b is removed, an elastic restoring force of the elastic element S500 drives the engaging element S310 to lock the slide bar assembly S200 to the support S100. Optionally, the elastic element S500 can be a spring. The elastic element S500 is preferably a coil spring.

[0078] In some embodiments, the safety seat base 1, in particular the bottom cover of the base S201, is provided with at least one mounting connection that communicates with the mounting cavity. The at least one mounting connection is located on at least one side of the safety seat and corresponds to the actuating part S400. The actuating part S400 protrudes from the at least one mounting connection and can be actuated by a user. With reference to the Fig. 41 and Fig. 44, the lower cover of the base S201 is provided with two mounting links S2012, which communicate with the mounting cavity S2011 when the operating part S400 comprises the first operating element S410a and the second operating element S410b. The two mounting links S2012 are located on two opposite sides of the safety seat and correspond to the first operating element S410a and the second operating element S410b, respectively. Specifically, the first operating element S410a and the second operating element S410b protrude from the two mounting links S2012 and can be operated by a user. In this way, the unlocking between the ISOFIX connection S2 and the safety seat can be achieved when the user operates either the first operating element S410a or the second operating element S410b outside the safety seat, which is easy to handle and use.

[0079] As can be seen from the Fig. 44 and Fig. 45, the first actuating member S410a and the second actuating member S410b are each pivotably arranged. Furthermore, each of the first actuating members S410a and the second actuating member S410b is configured to be pivotable between a reset position and a pushed position; to cause the respective engaging member S310 to move in the direction of releasing the slide bar assembly S200 from the support S100 when pivoted from the reset position to the pushed position; and to cause the respective engaging member S310 to move in the direction of locking the slide bar assembly S200 to the support S100 when pivoted from the pushed position to the reset position.In this way, when the user pushes one of the first operating members S410a and the second operating member S410b to pivot it from the reset position to the pushed position, the corresponding engaging member S310 can be driven to move in the direction of releasing the slide bar assembly S200 from the support S100, and the other engaging member S310 moves synchronously in the direction of releasing the slide bar assembly S200 from the support S100, driven by the link S320, thereby releasing the slide bar assembly S200 from the base S100, so that the length of the ISOFIX connection S2 protruding from the safety seat base 1 is adjustable.When the user releases the pushing force to pivot the first operating member S410a or the second operating member S410b from the pushed position to the reset position as described above, the corresponding engaging member S310 moves in the direction of locking the slide bar assembly S200 to the support S100, and the other engaging member S310 moves synchronously in the direction of locking the slide bar assembly S200 to the support S100, driven by the connecting member S320, thereby locking the slide bar assembly S200 to the support S100 to fix the length of the ISOFIX connection S2 protruding from the safety seat base 1.

[0080] In some embodiments (see Fig. 42), the adjustment assembly S300 further comprises two elastic return elements S600, each corresponding to the two actuating elements S410. Each of the two elastic return elements S600 is adapted to preload the corresponding actuating element S410 to cause the actuating element S410 to always have a tendency to pivot from the depressed position to the reset position.In this way, when the user does not apply force to either of the two actuating elements S410, the actuating element S410 is driven by the elastic action of the elastic return element S600, so that the actuating element S410 always tends to pivot from the pressed position to the reset position, which can ensure that the slide bar assembly S200 is always locked to the support S100 when no external force acts on the actuating element S410, so that the length of the ISOFIX connection S2 protruding from the safety seat base 1 is constant.

[0081] Furthermore, it is easily understood that the elastic force of the elastic return element S600 must be overcome when the user presses one of the two actuating elements S410 to pivot it from the reset position to the pushed position. The elastic return force of the elastic return element S600 causes one of the two actuating elements S410 to pivot from the pushed position to the reset position when the user releases the pushing force. Optionally, the elastic return element can be a spring. Preferably, the elastic return element is a torsion spring.

[0082] The operating part S400 and the operating assembly 300 are spaced apart on two sides of the safety seat (or the safety seat base) in its width direction, as shown in Fig. 32 and Fig. 41. The actuating part S400 and the actuating assembly 300 can each have two actuating elements. In this case, one actuating element of the actuating assembly 300, e.g., the first actuating element S410a, can be arranged on one side of the safety seat (or the safety seat base), while the other actuating element of the actuating assembly 300, e.g., the second actuating element S410b, can be arranged on the other side of the safety seat (or the safety seat base). In some embodiments, the actuating part S400 and the actuating assembly 300 can each have one actuating element. In this case, the actuating element of the actuating part S400 and the actuating element of the actuating assembly 300 can be arranged on one side of the safety seat (or the safety seat base) or on two sides of the safety seat (or the safety seat base), respectively.The specific arrangement of the operating part S400 and the operating assembly 300 is not limited thereto and can be adjusted as needed as long as the operating part S400 and the operating assembly 300 can perform the functions described above.

[0083] In some embodiments relating to Fig. 41 and Fig. 44, the adjustment assembly S300 further comprises two tension elements S700. The tension elements S700 each comprise a steel cable, an iron cable, a plastic tension cable, a polymer material tension cable, and an organic fiber cable, or a combination thereof. The first actuating element S410a and the second actuating element S410b are each connected to the two engaging elements S310 via the two tension elements S700. By a pulling action of the tension element S700, the first actuating element S410a and the second actuating element S410b, when pivoting between the reset position and the pressed position, can move the corresponding engaging element S310 to move in the direction of releasing the slide rod assembly S200 from the support S100 or in the direction of locking the slide rod assembly S200 to the support S100.

[0084] In some embodiments relating to Fig. 45, each of the first actuating elements S410a and the second actuating element S410b comprises an actuating end S411 and a pulling end S412 connected to the corresponding pulling element S700. The actuating end S411 and the pulling end S412 are each arranged at two opposite ends of the actuating element S410 with respect to a pivot axis S413. The actuating end S411 is configured to provide the user with a point of force application at which they can conveniently press the first actuating element S410a and the second actuating element S410b. The actuating end S411 and the pulling end S412 are each arranged at two opposite ends of the actuating element S410 with respect to the pivot axis S413, so that the pulling end S412 can be caused to pivot when the user presses the actuating end S411.The pulling end S412 sets the pulling element S700 connected to the pulling end S412 in motion and sets the engaging element S310 in motion through the pulling action of the pulling element S700.

[0085] In this embodiment, the actuating element S410 and the engaging element S310, which are connected to each tension element S700, are each arranged on two opposite sides of the connection S320. As shown in Fig. For example, as shown in Figure 44, one tension member S700 is connected to the first operating member S410a and the first engaging member S310a, and the other tension member S700 is connected to the second operating member S410b and the second engaging member S310b. When the operating end S411 of the first operating member S410a is pushed, the tension member S700 drives the first engaging member S310a to move toward the link S320. The movement of the first engaging member S310a can drive the link member S320 to synchronously drive the second engaging member S310b to move toward the link S320.In other words, when the first actuating element S410a is pushed by the tension element S700 and the link S320, the first actuating element S310a and the second actuating element S310b can approach each other to release the lock between the support S100 and the slide bar assembly S200. Similarly, the same result can also be achieved when the second actuating element S410b is pushed; details will not be described again here.

[0086] In some other embodiments, the actuating end S411 and the pulling end S412 may also be arranged at the same end of the actuating member S410 with respect to the pivot axis S413, provided that the pulling end S412 can be driven to pivot when the user presses the actuating end S411 and then the pulling member S700 connected to the pulling end S412 is driven to move.

[0087] In some embodiments (see Fig. 46), the adjustment assembly S300 further comprises two steering posts S800. The two steering posts S800 are in a one-to-one relationship with the two tension elements S700. Each of the two tension elements S700 is arranged around the corresponding steering post S800 in order to change a pulling direction of the tension element 5700. In various embodiments (see Fig. 46 and Fig. 47), the positions of the first actuating element S410a and the second actuating element S410b relative to the corresponding engagement element S310 can be different. The steering post S800 is arranged to change the pulling direction of the pulling element S700, so that even with different arrangements, the first actuating element S410a or the second actuating element S410b can move the corresponding engagement element S310 in a desired direction.

[0088] Furthermore, in the embodiment of Fig. 46, the first actuating element S410a and the first engaging element S310a are both arranged on one side of the connection S320. That is, the first engaging element S310a is closer to the first actuating element S410a. Furthermore, the second actuating element S410b and the second engaging element S310b are both arranged on the other side of the connection S320. That is, the second engaging element S310b is closer to the second actuating element S410b.

[0089] In some embodiments, the first actuating element S410a and the second actuating element S410b as well as the two engagement elements S310 are spaced apart along the width direction of the safety seat (cf. Fig. 46 and Fig. 47). The first actuating element S410a and the second actuating element S410b are respectively arranged in the two mounting connections S2012. The two engaging elements S310 (the first engaging element S310a and the second engaging element S310b) are arranged in the mounting cavity S2011. The support S100 comprises a first mounting frame S110a and a second mounting frame S110b. The first mounting rack S110a is releasably locked to the first slide bar S210a, and the second mounting rack S110b is releasably locked to the second slide bar S210b. The first slide bar S210a and the first fastening bar S110a are arranged between the first actuating element S410a and the first engaging element S310a. The second slide rod S210b and the second mounting bar S110b are arranged between the second actuating element S410b and the second engaging element S310b.

[0090] In an embodiment relating to Fig. 46, the first operating member S410a is connected to the first engaging member S310a adjacent to a side where the first operating member S410a is arranged via the pulling member S700. The second operating member S410b is connected to the second engaging member S310b adjacent to a side where the second operating member S410b is arranged via the pulling member S700. In this case, the adjusting assembly S300 is provided with the steering post S800. When the first operating member S410a pivots from the reset position to the pushed position, the pulling end S412 of the first operating member S410a moves in a direction away from the second operating member S410b, and the pulling end S412 of the first operating member S410a drives the pulling member S700 to move in the direction away from the second operating member S410b.The pulling direction of the drive member S700 can be changed due to the presence of the steering post S800, so that the drive member S700 can move the first engagement member S310a in a direction approaching the second actuating member S410b and away from the first actuating member S410a, thereby moving the first engagement member S310a in a direction away from the first slide bar S210a and the first mounting rack S110a. Therefore, the first engagement member S310a can be disengaged from the first slide bar S210a and the first mounting rack S110a, so that the first slide bar S210a can be disengaged from the first mounting rack S110a.Meanwhile, the connection S320 enables a synchronous movement of the second engagement element S310b in the direction away from the second actuating element S410b, so that the second engagement element S310b can be released from the second slide rod S210b and the second actuating assembly S110b to release the second slide rod S210b from the second actuating assembly S110b, thereby realizing the unlocking between the support S100 and the slide rod assembly S200. As can be seen, the steering post S800 is arranged to control the pulling direction of the pulling element S700, so that even in different arrangements, the first actuating element S410a or the second actuating element S410b can move the corresponding engagement element S310 in a desired direction.

[0091] In another embodiment, referring to Fig. 47, the first operating member S410a is connected to the second engaging member S310b adjacent to a side where the second operating member S410b is disposed via the pulling member S700. The second operating member S410b is connected to the first engaging member S310a adjacent to a side where the first operating member S410a is disposed via the pulling member S700. In this case, the adjusting assembly S300 is not provided with the steering post S800. When the first operating member S410a pivots from the reset position to the pushed position, the pulling end S412 of the first operating member S410a moves in the direction away from the second operating member S410b, so that the pulling member S700 moves the second engaging member S310b in the direction away from the second operating member S410b.That is, the second engagement element S310b moves in a direction away from the second slide bar S210b and the second mounting rack S110b, so that the second engagement element S310b can be disengaged from the second slide bar S210b and the second mounting rack S110b to release the second slide bar S210b from the second mounting rack S110b. Meanwhile, the linkage S320 enables synchronous movement of the first engagement element S310a in a direction away from the first actuating element S410a, so that the first engagement element S310a can be disengaged from the first slide bar S210a and the first actuating assembly S110a to release the first slide bar S210a from the first actuating assembly S110a, thereby realizing the unlocking between the support S100 and the slide bar assembly S200.

[0092] In some embodiments relating to the Fig. 42 and Fig. 44, the adjustment assembly S300 further includes two rolling elements S900. The two tension elements S700 are respectively arranged on the two rolling elements S900. When the tension element S700 moves, the tension element S700 drives the rolling element S900 to roll through friction. A synchronous rolling action of the rolling element S900 and the tension element S700 enables a smoother movement of the tension element S700. The rolling element S900 consists of a roller. The rolling element S900 is rotatably arranged on the lower cover of the base S201.

[0093] In some embodiments relating to the Fig. 44, Fig. 46 and Fig. 47, the link S320 is rotatably arranged, and an extending direction of a rotating shaft of the link S320 is different from a sliding direction of the slide rod S210 and also from the moving directions of the two engaging elements S310. In this embodiment, the sliding direction of the slide rod S210 is approximately parallel to the longitudinal direction L of the safety seat (or the safety seat base 1), and the moving directions of the two engaging elements S310 are approximately parallel to the width direction W of the safety seat (or the safety seat base 1). Furthermore, in this embodiment, the two engaging elements S310 and the link S320 are driven mainly by gear meshing, but this is not limited to this in the present application. In other embodiments, the two engaging elements S310 and the linkage S320 may also be connected to each other in other ways.

[0094] In this embodiment, each of the two engagement elements S310 is provided with a first engagement part S311, and one edge of the linkage S320 is provided with a second engagement part S321 adapted to the first engagement part S311. Each of the two engagement elements S310 is movably connected to the engagement part S320 by the respective first engagement part S311 engaging the second engagement part S321. Thus, when one of the two engagement elements S310 is set in motion by the actuating part S400, the first engagement part S311 of this engagement element S310 moves and drives the connection S320 into rotation through the mutual engagement of the first engagement part S311 and the second engagement part S321.The link S320, while rotating, can set the first engaging part S311 of the other of the two engaging elements S310 in motion through mutual engagement between the second engaging part S321 and the first engaging part S311 of the other of the two engaging elements S310, thereby setting the other of the two engaging elements S310 in motion, thereby realizing a synchronous movement of the two engaging elements S310. Specifically, the first engaging part S311 is a rack, the link S320 is a gear, and the second engaging part S321 is a tooth of the gear. In an optional embodiment, the link S320 is rotatably connected to the lower cover of the base S201.

[0095] As in the Fig. 46 and Fig. As shown in Figure 47, the two first interlocking parts S311 of the two engagement elements S310 are arranged on two opposite sides of the connection S320 and engage with the second interlocking part S321. The first engagement parts S311 of the two engagement elements S310 and the connection S320 are located between the first slide bar S210a and the first mounting rack S110a, and between the second slide bar S210b and the second mounting rack S110b, respectively. The first engagement element S310a is located on a side adjacent to the first slide bar S210a and the first mounting bar S110a. The first engagement element S310a is configured to releasably lock the first slide bar S210a to the first mounting frame S110a. The second engagement element S310b is located on a side adjacent to the second slide bar S210b and the second mounting bar S110b.The second engagement element S310b is configured to releasably lock the second slide rod S210b to the second mounting frame S110b.

[0096] In this way, when the first engagement member S310a moves in a direction approaching the first slide bar S210a and the first mounting rack S110a to lock the first slide bar S210a to the first mounting rack S110a, by mutual engagement between the first engagement part S311 of the first engagement member S310a and the second engagement part S321 of the link member S320, rotation of the linkage S320 and mutual engagement between the second engagement part S321 and the first engagement part S311 of the second engagement member S310b, the second engagement member S310b can be driven to move in a direction approaching the second slide bar S210b and the second mounting rack S110b to lock the second slide bar S210b to the second mounting rack S110b. lock.When the first engagement member S310a moves in the direction away from the first slide rod S210a and the first mounting rack S110a to release the first slide rod S210a from the first mounting rack S110a, the mutual connection between the first engagement part S311 of the first engagement member S310a and the second engagement part S321 can control the rotation of the linkage S320, and the mutual engagement between the second engagement part S321 and the first engagement part S311 of the second engagement member S310b, the second engagement member S310b can be driven to move in the direction away from the second slide rod S210b and the second mounting rack S110b to release the second slide rod S210b from the second mounting rack S110b.

[0097] When the second engagement member S310b moves in the direction in which it approaches the second slide bar S210b and the second mounting rack S110b to lock the second slide bar S210b to the second mounting rack S110b, the first engagement member S310a can be driven to move in the direction in which it approaches the first slide bar S210a and the first mounting rack S110a by the mutual engagement between the first engagement part S311 of the second engagement member S310b and the second engagement part S321 in a similar manner, the rotation of the connecting member S320 and the mutual engagement between the second engagement part S321 and the first engagement part S311 of the first engagement member S310a S110a to lock.When the second engagement member S310b moves in the direction away from the second slide rod S210b and the second mounting rack S110b to release the second slide rod S210b from the second mounting rack S110b, the first engagement member S310a can be driven to move in the direction away from the first slide rod S210a and the first mounting rack S110a to release the first slide rod S210a from the first mounting rack S110a by the mutual connection between the first engagement part S311 of the second engagement member S310b and the second engagement part S321, the rotation of the linkage S320, and the mutual engagement between the second engagement part S321 and the first engagement part S311 of the first engagement member S310a.Therefore, driven by one of the two engagement elements S310, the other of the two engagement elements S310 can be set in motion by the connection S320, so that the two engagement elements S310 move synchronously to lock the slide rod assembly S200 to the support S100 or to release the slide rod assembly S200 from the support S100.

[0098] In some embodiments (see Fig. 44), the two engagement elements S310 correspond respectively to the two slide rods S210. Each of the two engagement elements S310 (i.e., the first engagement element S310a and the second engagement element S310b) is provided with an engagement part S312. The engagement part S312 is configured to be detachably engaged with the corresponding slide rod S210 and the support S100. In this way, the engagement element S310 is detachably engaged with the corresponding slide rod S210 and the support S100 via the engagement part S312, thereby detachably securing the slide rod assembly S200 to the support S100. The engagement part S312 and the engagement element S310 may be formed integrally or consist of two separate, interconnected parts.

[0099] In particular, the engaging part S312 includes an engaging pin, and the support S100 is provided with first engaging holes S111 corresponding to the two engaging elements S310 (see Fig. 44). Optionally, the first two engagement holes S111 are provided in each of the two mounting frames S110. As can be seen from the Fig. 43 and Fig. 44, each of the two slide bars S210 is provided with a plurality of second engagement holes S211. All the second engagement holes S211 provided in each slide bar S210 may be spaced apart from each other along the longitudinal direction of the safety seat (e.g., the direction L in Fig. 43). The engagement pin can be passed through the corresponding first engagement hole S111 and inserted into one of the second engagement holes S211 in the corresponding slide bar S210 to releasably lock the corresponding slide bar S210 to the support S100. Furthermore, each of the two slide bars S210 is provided with a plurality of second engagement holes S211 so that the engagement pin can be selectively inserted into one of the second engagement holes S211 and the support S100 is connected to a different position of the slide bar assembly S200. Then, the relative position between the safety seat base 1 and the ISOFIX connection S2 is variable, so that the length of the ISOFIX connection S2 protruding from the safety seat base 1 can be adjusted. A change in the relative position between the ISOFIX connection S2 and the safety seat base 1 can be determined by referring to the Fig.be understood. The adjustment mechanism S10 according to the embodiments of the present application allows the relative positions between the two ISOFIX connectors S2 and the safety seat base 1 arranged in the width direction W of the safety seat base 1 to be adjusted synchronously, thereby adjusting the length of the ISOFIX connector S2 protruding from an outer surface of the safety seat base 1. The adjustment mechanism S10 according to the embodiments of the present application has a simple structure, is convenient to use, and can reduce costs.

[0100] According to one aspect of the present disclosure, a safety seat base is provided. A safety seat body is attached to the safety seat base, and the safety seat base includes: a mounting base; a turntable rotatably disposed on the mounting base and having a first rotational position and a second rotational position; an engagement mechanism configured to engage the turntable with the safety seat body; and a linking mechanism. The linking mechanism includes: a drive member slidably disposed on the mounting base; and a sliding member slidably disposed on the turntable. The sliding member extends at least partially into the mounting base and abuts the drive member, or the drive member extends at least partially into the turntable and abuts the sliding member.When the turntable rotates to the first rotation position, the drive element can move and drive the sliding element to drive the engagement mechanism for unlocking.

[0101] In the above-mentioned safety seat base, the drive element of the connection mechanism is operable when the turntable rotates to the first rotational position relative to the mounting base (e.g., in the rearward-facing state). Since the sliding element projects at least partially into the mounting base to be drivingly connected to the drive element, or the drive element projects at least partially into the turntable to be drivingly connected to the sliding element, the drive element can directly set the sliding element in motion to drive the engagement mechanism for unlocking. In this case, the safety seat base is detached from the safety seat body, and the safety seat body can be removed from the safety seat base. However, when the turntable is rotated to the second rotational position relative to the mounting base (e.g.,In the forward-facing position (e.g., to the forward-facing position), the engagement mechanism remains locked even when the drive member is operated, since the drive member does not abut the sliding member, the safety seat base and the safety seat body remain engaged, and the safety seat body cannot be removed from the safety seat base. This arrangement can prevent misuse caused by the child safety seat being in the forward-facing position when the user engages the child safety seat with the safety seat base after removing the child safety seat in the second rotational position (e.g., in the forward-facing position), thereby improving the safety factor.

[0102] When the turntable rotates to the second rotational position, the drive member is unable to drive the sliding member to slide and the engagement mechanism to unlock, as provided in the present disclosure.

[0103] In one embodiment of the present disclosure, the sliding member comprises a transmission rib extending into the mounting base, and the drive member is provided with a sliding groove. When the turntable rotates to the first rotational position, the transmission rib can abut against a groove wall of the sliding groove.

[0104] In one embodiment of the present disclosure, the transmission rib and the drive member are spaced apart from each other and cannot contact each other when the turntable rotates to the second rotational position.

[0105] In one embodiment of the present disclosure, the connecting mechanism further comprises a reinforcing pin fixedly inserted into the transmission rib.

[0106] In one embodiment of the present disclosure, the linking mechanism further comprises a linking member, wherein the linking member is pivotally connected to the turntable. When the turntable rotates to the first rotational position, the drive member can cause the linking member to rotate, and the linking member is rotated to move the sliding member to unlock the engagement mechanism.

[0107] In one embodiment of the present disclosure, the connecting element comprises a first end and a second end. When the turntable rotates to the first rotational position, the first end can abut the sliding element and the second end can abut the drive element.

[0108] In one embodiment of the present disclosure, the sliding member is provided with a first sliding groove, the driving member is provided with a second sliding groove, and the first end is disposed in the first sliding groove. When the turntable rotates to the first rotational position, the second end is positioned in the second sliding groove, the first end is capable of abutting against a groove wall of the first sliding groove, and the second end is capable of abutting against a groove wall of the second sliding groove.

[0109] In one embodiment of the present disclosure, when the turntable rotates to the second rotational position, the second end and the drive member are spaced apart from each other and cannot contact each other.

[0110] In one embodiment of the present disclosure, the link mechanism further comprises a fifth return element, two ends of which abut against the drive element and the mounting base, respectively. The fifth return element always causes the drive element to move in a direction opposite to a direction in which the sliding element is driven to unlock the engagement mechanism.

[0111] In one embodiment of the present disclosure, the safety seat base further includes an indicator mechanism. The indicator mechanism includes a detector and a sensor. The detector is slidably mounted on the turntable, and the sensor is mounted on the mounting base. The sliding member, when sliding, is capable of pushing the detector in a direction that intersects with a sliding direction of the sliding member, such that the detector is detected by the sensor and outputs information indicating that the turntable and the safety seat body are engaged; or such that the detector is not detected by the sensor and outputs information indicating that the turntable and the safety seat body are not engaged.

[0112] In one embodiment of the present disclosure, the display mechanism further comprises a controller and a screen arranged on the mounting base. The sensor is configured to transmit the information indicating that the turntable and the safety seat body are engaged to the controller, and the controller is configured to display the information indicating that the turntable and the safety seat body are engaged on the screen.

[0113] Or, the indicator mechanism includes a controller arranged on the mounting base. The sensor is configured to transmit the information indicating that the turntable and the safety seat body are engaged to the controller, and the controller is configured to transmit the information indicating that the turntable and the safety seat body are engaged to a mobile terminal.

[0114] In one embodiment of the present disclosure, the display mechanism further comprises a first reset element. The first reset element is disposed between the detector and the turntable. The first reset element always causes the detector to rotate in a direction away from the mounting base.

[0115] In one embodiment of the present disclosure, the sliding element is provided with a thrust convex protruding in the direction that intersects the sliding direction of the sliding element. The detector is equipped with a thrust block that can abut against the thrust convex. The sliding element presses against the thrust block during sliding to move the detector through the thrust convex in the direction that intersects the sliding direction of the sliding element.

[0116] In one embodiment of the present disclosure, the detector is provided with a detection rib. The detection rib can protrude into the mounting base and be detected by the sensor when the detector moves in the direction that intersects the sliding direction of the sliding element.

[0117] In one embodiment of the present disclosure, the engagement mechanism comprises a locking hook pivotally connected to the turntable and having a release position and a closed position. The locking hook is configured to engage the safety seat body, and the sliding member is capable of retaining the locking hook in the closed position.

[0118] In one embodiment of the present disclosure, the connecting mechanism further comprises a second return element. The two ends of the second return element are connected to the sliding element and the turntable, respectively. The second return element always causes the sliding element to move in a direction that holds the locking hook in the closed position.

[0119] In one embodiment of the present disclosure, the engagement mechanism further comprises a third return element. The two ends of the third return element abut the turntable and the locking hook, respectively. The third return element always causes the locking hook to rotate to the release position.

[0120] In one embodiment of the present disclosure, the engagement mechanism further comprises a fixed member, a stopper, and a fourth return member. The fixed member is fixedly connected to the locking hook. One end of the stopper is pivotally connected to the turntable, and the other end of the stopper can abut against the fixed member to hold the locking hook in the release position. The two ends of the fourth return member abut against the stopper and the turntable, respectively. The fourth return member causes the stopper to always rotate in a direction in which it abuts against the fixed member.

[0121] In one embodiment of the present disclosure, the safety seat base further includes an actuating assembly. The actuating assembly is connected to the drive member, and the actuating assembly can act on the drive member to drive the engagement mechanism for unlocking.

[0122] In one embodiment of the present disclosure, the actuating assembly comprises an actuating element and a pulling element. The actuating element is arranged on the mounting base, and the pulling element is connected between the actuating element and the drive element. The actuating element can, via the pulling element, set the drive element in motion to drive the engagement mechanism for unlocking.

[0123] In one embodiment of the present disclosure, the actuating member is pivotally connected to the mounting base, wherein the actuating member is rotatable relative to the mounting base to set the drive member in motion by the pulling member.

[0124] In one embodiment of the present disclosure, the actuating assembly further comprises a pivot shaft attached to the mounting base. The actuating element consists of an actuating part, a pivoting part, and a first connecting part. The pivoting part is pivotally connected to the pivot shaft. The actuating part and the first connecting part are located on two sides of the pivot shaft, respectively. The two ends of the pulling element are connected to the first connecting part and the driving element, respectively, and the actuating part can pivot the actuating element about the pivot shaft.

[0125] In one embodiment of the present disclosure, the actuating assembly further comprises a sixth return element. The sixth return element is arranged between the actuating element and the mounting base. The sixth return element always brings the actuating element into a position in which the actuating element is not actuated.

[0126] According to another aspect of the present disclosure, a safety seat is provided, the safety seat comprising a safety seat body and the safety seat base according to any one of the above embodiments. The safety seat body is a safety seat body for infants or a safety seat body for children.

[0127] According to another aspect of the present disclosure, an adjustment mechanism for an ISOFIX connection is provided. The ISOFIX connection is suitable for attachment to a connection component in a vehicle adapted to the ISOFIX connection. The adjustment mechanism comprises: a support configured to connect to a base of a safety seat; a slide bar assembly having two slide bars, one end of each of the two slide bars being slidably connected to the support and releasably locked with respect to the support, and the other end of each of the two slide bars being connected to the ISOFIX connection;an adjustment assembly having a link and two engagement elements, the two engagement elements being movably connected to the link, the link being configured to drive one of the two engagement elements driven by the other of the two engagement elements such that the two engagement elements move synchronously to lock the slide bar assembly to the support or engage the slide bar assembly with the support; and an actuating portion configured to drive one of the two engagement elements such that the two engagement elements synchronously release the slide bar assembly from the support or engage the slide bar assembly with the support.

[0128] According to the adjustment mechanism of the present disclosure, synchronous locking or unlocking of the engaging parts on both sides of the safety seat can be realized by a simple structure, thereby reducing the manufacturing cost.

[0129] In one embodiment of the present disclosure, when one of the two engagement members moves in a direction to lock the slide bar assembly to the support or in a direction to release the slide bar assembly from the support, the linkage driven movement of the other of the two engagement members can cause it to move in the direction to lock the slide bar assembly to the support or in the direction to release the slide bar assembly from the support.

[0130] In one embodiment of the present disclosure, the actuating part comprises a first actuating element and a second actuating element, each connected to the two engagement elements. The actuating part actuates either the first actuating element or the second actuating element to drive a corresponding one of the two engagement elements, and both the first actuating element and the second actuating element are pivotally arranged.

[0131] In one embodiment of the present disclosure, each of the first actuating member and the second actuating member is configured to be pivotable between a reset position and a depressed position; the corresponding engaging member is caused to move in the direction of releasing the slide bar assembly from the support when pivoted from the reset position to the depressed position; and the corresponding engaging member is caused to move in the direction of locking the slide bar assembly to the support when pivoted from the depressed position to the reset position.

[0132] In one embodiment of the present disclosure, the adjustment assembly further comprises two pulling elements, and the first actuating element and the second actuating element are each connected to the two engaging elements via the two pulling elements.

[0133] In one embodiment of the present disclosure, each of the two tension elements comprises a steel cable.

[0134] In one embodiment of the present disclosure, each of the first actuating element and the second actuating element comprises an actuating end and a pulling end connected to the corresponding pulling element. The actuating end and the pulling end are each arranged at two opposite ends of the actuating element with respect to a pivot axis.

[0135] In one embodiment of the present disclosure, the adjustment assembly further comprises two steering posts. The two steering posts correspond one-to-one to the two tension members. Each of the two tension members is arranged around the corresponding steering post to change a tension direction of the tension member.

[0136] In one embodiment of the present disclosure, the adjustment assembly further comprises two rolling elements. The two tension elements are arranged on the two rolling elements, respectively.

[0137] In one embodiment of the present disclosure, each of the two rolling elements comprises a roller.

[0138] In one embodiment of the present disclosure, the adjustment assembly further comprises two elastic return elements, each corresponding to the first actuating element and the second actuating element. Each of the two elastic return elements is adapted to bias the corresponding actuating element to cause the actuating element to always have a tendency to pivot from the depressed position to the reset position.

[0139] In one embodiment of the present disclosure, the two engagement elements and the connection are driven by meshing.

[0140] In one embodiment of the present disclosure, the connection is arranged to be rotatable. The extension direction of a rotating shaft of the connection differs from the sliding direction of the slide rod and also from the movement directions of the two engagement elements.

[0141] In one embodiment of the present disclosure, each of the two engagement elements is provided with a first engagement part, the connection is rotatably arranged, and an edge of the connection is provided with a second engagement part adapted to the first engagement part. Each of the two engagement elements is movably connected to the linkage by the respective first engagement part engaging the second engagement part.

[0142] In one embodiment of the present disclosure, the two engagement elements correspond to the two slide rods, respectively. Each of the two engagement elements is provided with an engagement part. The engagement part is designed to releasably engage the corresponding slide rod and the support.

[0143] In one embodiment of the present disclosure, the engagement part comprises an engagement pin. The support is provided with two first engagement holes, each corresponding to the two engagement elements. Each of the two slide rods is provided with a plurality of second engagement holes. The engagement pin can be passed through the corresponding first engagement hole and inserted into one of the second engagement holes in the corresponding slide rod to releasably lock the corresponding slide rod to the support.

[0144] In one embodiment of the present disclosure, the first meshing part is a rack, the linkage is a gear, and the second meshing part is a tooth of the gear.

[0145] In one embodiment of the present disclosure, the slide bar assembly further comprises a connector, and the two slide bars are both connected to the connector.

[0146] In one embodiment of the present disclosure, the connector is a connecting plate or a connecting rod.

[0147] In one embodiment of the present disclosure, the adjustment assembly further comprises two elastic elements, each corresponding to the two engagement elements. Each of the two elastic elements is adapted to preload the corresponding engagement element so that the engagement element always tends to move in a direction in which the slide bar assembly is locked to the support.

[0148] In one embodiment of the present disclosure, the support further comprises two sliding sleeves, each corresponding to the two sliding rods. The two sliding sleeves are located on two opposite sides of the support. Each of the two sliding sleeves is provided with a through-hole. One end of the corresponding sliding rod passes through the through-hole and is slidably connected to the support.

[0149] According to another aspect of the present disclosure, a safety seat is provided that includes a base and one of the adjustment mechanisms described above. The base is connected to the support.

[0150] In one embodiment of the present disclosure, the base is provided with a mounting cavity and at least one mounting connection communicating with the mounting cavity. The at least one mounting connection is located on at least one side of the safety seat and corresponds to the actuating part. The actuating part protrudes from the at least one mounting connection and can be operated by a user.

[0151] The technical features in the above-mentioned embodiments can be combined as desired. To keep the description concise, not all possible combinations of the technical features are described in the above-mentioned embodiments. However, all combinations of the technical features are considered to be within the scope described in this specification, provided they do not conflict with each other.

[0152] The above-mentioned embodiments describe only some embodiments of the present disclosure, and their description is specific and detailed, but therefore should not be construed as limiting the scope of the present disclosure. It should be noted that those skilled in the art may make further variations and improvements without departing from the spirit of the present disclosure, and all of these are within the scope of the present disclosure. Thus, the scope of the present disclosure is subject to the appended claims.

Claims

[1] Safety seat base to which a safety seat body is mounted and which comprises: a mounting base; a turntable rotatably mounted on the mounting base and having a first rotational position and a second rotational position; an engagement mechanism configured to engage the turntable with the safety seat body; and a connecting mechanism comprising: a drive element slidably mounted on the mounting base; and a sliding element slidably arranged on the turntable; wherein the sliding member extends at least partially into the mounting base to abut the drive member, or the drive member extends at least partially into the turntable to abut the sliding member; and when the turntable rotates to the first rotational position, the drive member is operable to move and drive the sliding member, thereby driving the unlocking engagement mechanism. [2] The safety seat base according to claim 1, wherein when the turntable rotates to the second rotational position, the drive member is unable to drive the sliding member to slide and is unable to drive the engagement mechanism to unlock. [3] Safety seat base according to one of claims 1 or 2, wherein the sliding element has a transmission rib projecting into the mounting base, the drive element is provided with a sliding groove, and wherein the transmission rib is capable of abutting against a groove wall of the sliding groove upon rotation of the turntable into the first rotational position. [4] A safety seat base according to claim 3, wherein the transmission rib and the drive member are spaced apart from each other and cannot contact each other when the turntable rotates to the second rotational position. [5] A safety seat base according to any one of claims 3 or 4, wherein the connecting mechanism further comprises a reinforcing pin fixedly inserted into the transmission rib. [6] A safety seat base according to any one of claims 1 to 5, wherein the linking mechanism further comprises a link member, the link member being pivotally connected to the turntable, and wherein, when the turntable rotates to the first rotational position, the drive member is operable to drive the link member to rotate, and the link member is rotated to drive the slide member to slide to drive the engagement mechanism to unlock. [7] The safety seat base of claim 6, wherein the connecting member comprises a first end and a second end, and when the turntable rotates to the first rotational position, the first end is capable of abutting against the sliding member and the second end is capable of abutting against the driving member. [8] A safety seat base according to claim 7, wherein the sliding member is provided with a first sliding groove, the driving member is provided with a second sliding groove, the first end is positioned in the first sliding groove, and when the turntable rotates to the first rotational position, the second end is positioned in the second sliding groove, the first end is capable of abutting against a groove wall of the first sliding groove, and the second end is capable of abutting against a groove wall of the second sliding groove. [9] A safety seat base according to any one of claims 7 or 8, wherein when the turntable rotates to the second rotational position, the second end and the drive member are spaced apart from each other and cannot contact each other. [10] The safety seat base according to any one of claims 1 to 9, wherein the link mechanism further comprises a fifth return member, two ends of the fifth return member abutting against the drive member and the mounting base, respectively, and the fifth return member always causes the drive member to move in a direction opposite to a direction in which the slide member is driven to unlock the engagement mechanism. [11] Safety seat base according to one of claims 1 to 10, further comprising a display mechanism, wherein the display mechanism comprises a detector and a sensor, wherein the detector is slidably mounted on the turntable, the sensor is mounted on the mounting base, and wherein the sliding member, when sliding, is capable of pushing the detector to move in a direction intersecting a sliding direction of the sliding member, such that the detector is detected by the sensor and outputs information indicating that the turntable and the safety seat body are engaged in place; or such that the detector is not detected by the sensor and outputs information indicating that the turntable and the safety seat body are not engaged in place. [12] The safety seat base of claim 11, wherein the display mechanism further comprises a controller and a screen disposed on the mounting base, and wherein the sensor is configured to transmit the information indicating that the turntable and the safety seat body are locked in place to the controller, and the controller is configured to display the information indicating that the turntable and the safety seat body are locked in place on the screen;or the indicator mechanism further comprises a controller arranged on the mounting base, and wherein the sensor is configured to transmit the information indicating that the turntable and the safety seat body are locked in place to the controller, and the controller is configured to transmit the information indicating that the turntable and the safety seat body are locked in place to a mobile terminal.; [13] A safety seat base according to any one of claims 11 or 12, wherein the indicator mechanism further comprises a first reset element, the first reset element being disposed between the detector and the turntable, the first reset element always causing the detector to rotate in a direction away from the mounting base. [14] A safety seat base according to any one of claims 11 to 13, wherein the sliding member is provided with a thrust convex protruding in the direction intersecting the sliding direction of the sliding member, the detector is provided with a thrust block capable of abutting against the thrust convex, and wherein the sliding member, when sliding, pushes the thrust block to drive the detector to move in the direction intersecting the sliding direction of the sliding member through the thrust convex. [15] A safety seat base according to any one of claims 11 to 14, wherein the detector is provided with a detecting rib, the detecting rib being capable of projecting into the mounting base and being detected by the sensor when the detector moves in the direction intersecting with the sliding direction of the sliding member. [16] A safety seat base according to any one of claims 1 to 15, wherein the engagement mechanism comprises a locking hook pivotally connected to the turntable and having a release position and a locking position, the locking hook being adapted to be removably engaged with the safety seat body, and the sliding member being capable of holding the locking hook in the locking position. [17] The safety seat base according to claim 16, wherein the connecting mechanism further comprises a second return member, two ends of the second return member being connected to the slide member and the turntable, respectively, the second return member always causing the slide member to move in a direction in which the locking hook is held in the closed position. [18] A safety seat base according to any one of claims 16 or 17, wherein the engagement mechanism further comprises a third return element, two ends of the third return element respectively abutting the turntable and the locking hook, the third return element always causing the locking hook to rotate to the release position. [19] A safety seat base according to claim 18, wherein the engagement mechanism further comprises a fixed member, a stopper and a fourth return member, and wherein the fixed element is firmly connected to the locking hook, one end of the stopper is pivotally connected to the turntable, the other end of the stopper is capable of abutting against the fixed element to hold the locking hook in the release position, and two ends of the fourth return element respectively abut against the stopper and the turntable, and the fourth return element always rotates the stopper in a direction in which it abuts against the fixed element. [20] A safety seat base according to any one of claims 1 to 19, further comprising an actuating assembly, the actuating assembly being connected to the drive member and the actuating assembly being operable to act on the drive member to drive the engagement mechanism for unlocking. [21] A safety seat base according to claim 20, wherein the actuating assembly comprises an actuating member and a pulling member, the actuating member being arranged on the mounting base, the pulling member being connected between the actuating member and the driving member, and the actuating member being operable to move the driving member via the pulling member to drive the engagement mechanism for unlocking. [22] The safety seat base of claim 21, wherein the actuating member is pivotally connected to the mounting base and the actuating member is operable to rotate relative to the mounting base to drive the driving member to move through the pulling member. [23] The safety seat base of claim 22, wherein the actuating assembly further comprises a pivot shaft fixed to the mounting base, the actuating member comprises an actuating part, a pivot part, and a first connecting part, and wherein the pivot part is pivotally connected to the pivot shaft, the actuating part and the first connecting part are respectively positioned on two sides of the pivot shaft, two ends of the pulling member are respectively connected to the first connecting part and the driving member, and the actuating part is operable to pivot the actuating member about the pivot shaft. [24] A safety seat base according to any one of claims 22 or 23, wherein the actuating assembly further comprises a sixth return element, the sixth return element being arranged between the actuating element and the mounting base, the sixth return element always causing the actuating element to rotate to a position in which the actuating element is not actuated. [25] Safety seat, comprising: a safety seat body; and the safety seat base according to one of claims 1 to 24, wherein the safety seat body is an infant or child safety seat body. [26] An adjustment mechanism for an ISOFIX connection, the ISOFIX connection being adapted to be attached to a connection component in a vehicle adapted to the ISOFIX connection, the adjustment mechanism comprising: a support connected to a base of a safety seat; a slide bar assembly comprising two slide bars, one end of each of the two slide bars being slidably connected to the support and releasably locked with respect to the support, and the other end of each of the two slide bars being connected to the ISOFIX connection; an adjustment assembly comprising a link and two engagement elements, wherein the two engagement elements are movably connected to the link, and the link is adapted to drive one of the two engagement elements driven by the other of the two engagement elements, such that the two engagement elements move synchronously to lock the slide bar assembly to the support or to release the slide bar assembly from the support; and an actuating part configured to drive one of the two engagement elements so that the two engagement elements synchronously release the slide rod assembly from the support or lock the slide rod assembly to the support. [27] An adjustment mechanism according to claim 26, wherein, driven by the linkage, one of the two engaging elements, when moving in a direction of locking the slide bar assembly to the support or in a direction of releasing the slide bar assembly from the support, is capable of driving the other of the two engaging elements to move in the direction of locking the slide bar assembly to the support or in the direction of releasing the slide bar assembly from the support. [28] An adjustment mechanism according to any one of claims 26 or 27, wherein the actuating part comprises a first actuating element and a second actuating element, each connected to the two engaging elements, the actuating part actuates either the first actuating element or the second actuating element to drive a corresponding one of the two engaging elements, and both the first actuating element and the second actuating element are pivotally arranged. [29] An adjustment mechanism according to claim 28, wherein each of the first actuating member and the second actuating member is configured to be pivotable between a reset position and a depressed position; to cause the corresponding engagement member to move in the direction of release of the slide bar assembly from the support when pivoting from the reset position to the depressed position; and to cause the corresponding engagement member to move in the direction of locking the slide bar assembly to the support when pivoting from the depressed position to the reset position. [30] Adjustment mechanism according to one of claims 28 or 29, wherein the adjustment arrangement further comprises two tension elements and the first actuating element and the second actuating element are each connected to the two engagement elements via the two tension elements. [31] Adjustment mechanism according to claim 30, wherein each of the two tension elements comprises a steel cable. [32] Adjustment mechanism according to one of claims 30 or 31, wherein each of the first actuating element and the second actuating element has an actuating end and a pulling end connected to the corresponding pulling element, the actuating end and the pulling end being respectively arranged at two opposite ends of the actuating element with respect to a pivot axis. [33] An adjustment mechanism according to any one of claims 30 to 32, wherein the adjustment assembly further comprises two steering posts, the two steering posts being in one-to-one correspondence with the two tension members, and each of the two tension members being arranged around the corresponding steering post to change a tension direction of the tension member. [34] Adjustment mechanism according to one of claims 30 to 33, wherein the adjustment arrangement further comprises two rolling elements and the two tension elements are arranged on the two rolling elements, respectively. [35] An adjustment mechanism according to claim 34, wherein each of the two rolling elements comprises a roller. [36] An adjustment mechanism according to any one of claims 29 to 35, wherein the adjustment assembly further comprises two resilient return elements corresponding respectively to the first actuating element and the second actuating element, and wherein each of the two resilient return elements is adapted to bias the corresponding actuating element to cause the actuating element to always tend to pivot from the depressed position to the reset position. [37] Adjustment mechanism according to one of claims 26 to 36, wherein the two engagement elements and the connection are driven in an interlocking manner. [38] Adjustment mechanism according to one of claims 26 to 37, wherein the link is arranged to be rotatable and an extending direction of a rotary shaft of the link is different from a moving direction of the slide rod and also from the moving directions of the two engaging elements. [39] An adjustment mechanism according to any one of claims 26 to 38, wherein each of the two engagement elements is provided with a first engagement part, the connection is rotatably arranged, an edge of the connection is provided with a second engagement part adapted to the first engagement part, and each of the two engagement elements is movably connected to the connection by the respective first engagement part engaging the second engagement part. [40] An adjustment mechanism according to claim 39, wherein the two engagement elements correspond to the two slide bars, respectively, and each of the two engagement elements is provided with an engagement part, the engagement part being adapted to be detachably engaged with the corresponding slide bar and the support. [41] An adjustment mechanism according to claim 40, wherein the engaging portion comprises an engaging pin, the bracket is provided with two first engaging holes corresponding to the two engaging members, respectively, each of the two sliding rods is provided with a plurality of second engaging holes, and the engaging pin is adapted to be passed through the corresponding first engaging hole and inserted into one of the second engaging holes in the corresponding sliding rod to releasably lock the corresponding sliding rod to the bracket. [42] An adjustment mechanism according to any one of claims 39 to 41, wherein the first meshing part is a rack, the linkage is a gear, and the second meshing part is a tooth of the gear. [43] An adjustment mechanism according to any one of claims 26 to 42, wherein the slide bar assembly further comprises a connector and the two slide bars are both connected to the connector. [44] Adjustment mechanism according to claim 43, wherein the connector is a connecting plate or a connecting rod. [45] An adjustment mechanism according to any one of claims 26 to 44, wherein the adjustment assembly further comprises two elastic members corresponding respectively to the two engagement members, and wherein each of the two elastic members is adapted to bias the corresponding engagement member to cause the engagement member to always tend to move in a direction in which the slide bar assembly is locked to the support. [46] An adjustment mechanism according to any one of claims 26 to 45, wherein the support further comprises two sliding sleeves, each corresponding to the two sliding rods, and wherein the two sliding sleeves are each arranged on two opposite sides of the support, each of the two sliding sleeves is provided with a through-hole, and one end of the corresponding sliding rod passes through the through-hole and is slidably connected to the support. [47] Safety seat, comprising: a base; and the adjustment mechanism according to one of claims 26 to 46, where the base is connected to the support. [48] ​​A safety seat according to claim 47, wherein the base is provided with a mounting cavity and at least one mounting connection communicating with the mounting cavity, the at least one mounting connection being positioned on at least one side of the safety seat and corresponding to the actuating part, and the actuating part protruding from the at least one mounting connection to allow a user to actuate it.

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