Child safety seats and seat bases

Abstract

To provide a child safety seat and a seat base which have a simple structure, allow easy observation of the connection state between the seat base and the seat body, and are highly safe. [Solution] A child seat and a seat base for a child seat are provided. The seat base includes a buckle mechanism, a display mechanism, and a link mechanism. The buckle mechanism is configured to be buckled to a seat main body. The display mechanism includes a display area configured to display the buckle status of the seat base and the seat main body. The link mechanism is disposed between the buckle mechanism and the display mechanism. When the buckle mechanism is buckled to the seat main body, the link mechanism drives the display area to display a first display state, and when the buckle mechanism is released from the seat main body, the link mechanism drives the display area to display a second display state.

Description

[Technical field]

[0001] This application claims priority to Chinese Patent Application No. 2020114410863, entitled "Child Safety Seat and Child Safety Seat Base", filed on December 11, 2020, the entire disclosure of which is incorporated herein by reference. The present invention relates to the technical field of infant carriers, and in particular to a child safety seat and a seat base. [Background technology]

[0002] Child safety seats need to be used correctly to protect children. A child safety seat mainly includes a seat body and a seat base. When used, the seat base is connected to a car seat, and the seat body is fastened to the seat base in a forward or reverse direction. Currently, most child safety seats do not have a device that warns of the installation state or the use state. When a child safety seat is installed for a user, whether the seat body and the seat base are completely buckled or not is judged by the operator's subjective judgment. As a result, a danger is easily caused to a child sitting in the seat due to a human's incorrect judgment. In addition, some commercially available child seats have a local display function, such as a display device that displays the connection state of the ISOFIX connector. However, the structure of these display devices is generally complicated, which increases the difficulty and cost of manufacturing the child safety seat. Summary of the Invention [Problem to be solved by the invention]

[0003] Based on this, it is necessary to provide a child safety seat and a seat base, which have a simple structure, the connection state between the seat base and the seat body is easy to observe, and the safety is high. [Means for solving the problem]

[0004] The seat base of the child safety seat includes a buckling mechanism configured to be buckled to the seat body, an indication mechanism having a display area that displays the buckling state of the seat base and the seat body, and a linkage mechanism disposed between the buckling mechanism and the indication mechanism, and when the buckle mechanism is buckled to the seat body, the linkage mechanism drives the indication area to indicate a first indication state, and when the buckle mechanism is unbuckled from the seat body, the linkage mechanism drives the indication area to indicate a second indication state.

[0005] In the seat base of the above-mentioned child safety seat, the buckle mechanism implements the buckle fixing between the seat base and the seat body, and when the buckle mechanism is buckled to the seat body or released from the seat body, the link mechanism can drive the display area to present different display states. In this way, the user can conveniently see the connection state between the base and the seat body, which is more convenient and safer during use. In addition, the seat base has a simple structure, and the manufacturing difficulty and manufacturing cost are low.

[0006] In one embodiment, the seat base further includes a mounting base, and the linkage mechanism includes a rotation element rotatably coupled within the mounting base and a linkage element coupled to the rotation element and the display area, such that when the seat base is buckled to the seat body, the rotation element rotates to drive the linkage element and drive the display area to present a first display state, and when the seat base is unbuckled from the seat body, the rotation element rotates to drive the linkage element and drive the display area to present a second display state.

[0007] In one embodiment, the link mechanism further includes a first restoration element, two ends of which abut against the link element and the mounting base, respectively, and the first restoration element always allows the link element to move toward a direction that drives the display area to present the second display state.

[0008] In one embodiment, the link mechanism further comprises a push button movably disposed on the mounting base, the push button abutting the buckle mechanism and the rotating element, respectively, the buckle mechanism being actuatable to slide the push button, and the push button pushing the rotating element to rotate it.

[0009] In one embodiment, the link mechanism further includes a second restoring element, two ends of which abut against the mounting base and the push button, respectively, and the second restoring element always allows the push button to move in a direction opposite to the direction in which it is pressed by the buckle mechanism.

[0010] In one embodiment, the buckle mechanism comprises a sliding element slidably disposed on the mounting base, and when the sliding element slides, a push button can be pressed so that the sliding element moves along a direction intersecting the sliding direction of the sliding element, and when the push button moves, the push button drives a rotating element to rotate so as to drive a link element to move.

[0011] In one embodiment, a push protrusion that protrudes along a direction intersecting the sliding direction of the sliding element is disposed on the sliding element, and when the sliding element slides, the push protrusion presses the push button to move it.

[0012] In one embodiment, the buckle mechanism further comprises a locking hook pivotally connected to the mounting base and having an open position and a closed position, the locking hook being configured to be removably fixed to the seat body, and the sliding element having a function of maintaining the locking hook in the open or closed position.

[0013] In one embodiment, the buckle mechanism further includes a third restoring element, two ends of which abut against the sliding element and the mounting base, respectively, and the third restoring element always allows the sliding element to move in a direction that maintains the locking hook in the open position.

[0014] In one embodiment, the buckle mechanism further comprises a fastening element attached to the mounting base and a fifth restoring element connected to the fastening element, wherein the locking hook is pivotally connected to the fastening element and abuts against the fifth restoring element, which always allows the locking hook to rotate towards the open position.

[0015] In one embodiment, the buckle mechanism further comprises a stopper and a sixth restoring element, one end of the stopper is pivotally connected to the mounting base and the other end of the stopper is connected to the locking hook, the sixth restoring element abuts against the stopper and the mounting base respectively, and the sixth restoring element always allows the locking hook to rotate towards the open position.

[0016] In one embodiment, the seat base further comprises an unlocking mechanism, the unlocking mechanism being disposed on the mounting base and configured to drive the sliding element to slide.

[0017] In one embodiment, the unlocking mechanism comprises a drive element and a first mandrel which slidably cooperate with each other, the drive element being slidably mounted on the mounting base, the first mandrel being movably arranged and abutting the slide element, and when the drive element moves under a force, the drive element can drive the first mandrel to move along a direction intersecting the sliding direction of the drive element, and the first mandrel pushes the slide element, driving it to slide.

[0018] In one embodiment, the drive element is provided with a drive chute that intersects with the sliding direction of the drive element, a first guide rod is disposed on the first mandrel, the first guide rod is inserted into the drive chute and moves along the drive chute, and when the drive element slides, the drive chute acts on the first guide rod to move the first mandrel.

[0019] In one embodiment, the unlocking mechanism further includes a second mandrel, the second mandrel being movably disposed between the first mandrel and the sliding element, such that as the first mandrel moves, the first mandrel pushes the second mandrel to move in the same direction, driving the second mandrel to slide the sliding element.

[0020] In one embodiment, a driving slope is provided at the end of the second mandrel and a driven slope is provided on the sliding element which cooperates with the driving slope and acts on the driven slope to slide the sliding element.

[0021] In one embodiment, the unlocking mechanism further comprises a handle movably mounted to the mounting base, the handle connected to the drive element, the handle actuating the drive element to move it.

[0022] In one embodiment, the unlocking mechanism further comprises a pulling element connected between the handle and the drive element.

[0023] In one embodiment, the handle is located at an end of the mounting base adjacent the display mechanism.

[0024] In one embodiment, the unlocking mechanism further comprises a fourth restoring element, the fourth restoring element abutting against the drive element and the mounting base, respectively, and the fourth restoring element being configured to drive the drive element to restore it.

[0025] In one embodiment, the unlocking mechanism comprises a first pivot element and a first pressing element, the first pivot element is pivotally connected to the mounting base, the first pressing element is movably arranged and capable of driving the sliding element to move, and when the first pivot element rotates under force, the first pivot element is capable of driving the first pressing element to move along a direction intersecting the sliding direction of the sliding element, and the first pressing element drives the sliding element to slide.

[0026] In one embodiment, the mounting base has a drive guide groove that intersects with the sliding direction of the sliding element, the second guide rod is disposed on the first pressing element, the second guide rod is coupled to the first sliding element, the second guide rod is inserted into the drive guide groove and moves along the drive guide groove, and when the first sliding element rotates, the drive guide groove acts on the second guide rod to drive the first pressing element to move.

[0027] In one embodiment, the unlocking mechanism further includes a second pressing element and a second pivot element, the second pressing element being movably disposed between the first pressing element and the sliding element, the second pivot element being pivotally connected to the second pressing element and abutting the sliding element, and when the first pressing element moves, the first pressing element presses the second pressing element to move in the same direction, thereby rotating the second pivot element and simultaneously sliding the sliding element.

[0028] In one embodiment, the unlocking mechanism further comprises at least one handle movably mounted to the mounting base, the at least one handle connected to the first pivot element, and the at least one handle driving the first pivot element to rotate.

[0029] In one embodiment, the unlocking mechanism further comprises a tension element connected between the at least one handle and the first pivot element.

[0030] In one embodiment, the at least one handle is arranged on a side of the mounting base along the sliding direction of the sliding element.

[0031] In one embodiment, the unlocking mechanism further comprises a seventh restoring element, the seventh restoring element abutting against the first pivot element and the mounting base, respectively, the seventh restoring element being configured to drive the first pivot element to restore it.

[0032] In one embodiment, the display mechanism further comprises a display window disposed on the mounting base, the display area being aligned with the display window.

[0033] The child safety seat is composed of the above-mentioned seat base and a seat body which is removably fixed to the seat base.

[0034] In one embodiment, the seat base is provided with a buckling groove, the buckling mechanism partially protrudes into the buckling groove, and a buckling rod configured to buckle into the buckling mechanism is disposed at the bottom of the seat body.

[0035] In order to more clearly describe the embodiments of the present invention or the technical solutions of the prior art, the following briefly describes the accompanying drawings for describing the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can derive other drawings from the accompanying drawings without creative efforts. [Brief description of the drawings]

[0036] [Figure 1] FIG. 1 is a perspective view of a seat base according to one embodiment of the present disclosure. [Diagram 2] FIG. 2 is an enlarged view of part A in FIG. [Diagram 3] FIG. 3 is a perspective view of a seat body according to one embodiment of the present disclosure. [Figure 4] FIG. 4 is a perspective view showing the internal structure of FIG. [Diagram 5] FIG. 5 is an enlarged view of part B in FIG. [Figure 6] FIG. 6 is a side view showing another internal structure of FIG. [Figure 7] FIG. 7 is an enlarged view of part C in FIG. [Figure 8] FIG. 8 is an enlarged view of the buckle mechanism of the seat base in FIG. [Figure 9] 9 is an exploded perspective view of the lock release mechanism of the seat base in FIG. 6. FIG. [Figure 10] FIG. 10 is a perspective view showing still another internal structure of FIG. [Figure 11] FIG. 11 is an enlarged view of part D in FIG. [Figure 12] FIG. 12 is an enlarged view of a portion E in FIG. [Figure 13]FIG. 13 is an enlarged view of a portion F in FIG. [Figure 14] FIG. 14 is a cross-sectional view of FIG. [Figure 15] FIG. 15 is an enlarged view of a portion G in FIG. [Figure 16] FIG. 16 is a perspective view showing still another internal structure of FIG. [Figure 17] FIG. 17 is an enlarged view of a portion H in FIG. [Figure 18] FIG. 18 is a perspective view of a child safety seat according to another embodiment of the present invention. [Figure 19] FIG. 19 is a perspective view of the seat base of the child safety seat of FIG. [Figure 20] FIG. 20 is a perspective view showing the internal structure of FIG. [Figure 21] FIG. 21 is a perspective view showing a partial structure of FIG. [Figure 22] FIG. 222 is a perspective view of the partial structure of FIG. 20 at a different viewing angle. [Diagram 23] FIG. 23 is a perspective view of another internal structure of FIG. 19, where the locking hook is in an open position. [Figure 24] FIG. 24 is an enlarged view of part I in FIG. [Diagram 25] FIG. 25 is a perspective view of another internal structure of FIG. 19, where the locking hook is in a closed position. [Figure 26] FIG. 26 is an enlarged view of part J in FIG. [Figure 27] FIG. 27 is a side view showing the internal structure of FIG. [Figure 28] FIG. 28 is an enlarged view of a portion K in FIG. [Figure 29] FIG. 29 is a side view showing the internal structure of FIG. [Diagram 30] FIG. 30 is an enlarged view of a portion L in FIG. [Diagram 31] FIG. 31 is a cross-sectional view of FIG. 20 with the sliding element in a locked position. [Diagram 32]FIG. 32 is an enlarged view of a portion P in FIG. [Diagram 33] FIG. 33 is another cross-sectional view of FIG. 20, where the sliding element is in an unlocked position. [Diagram 34] FIG. 34 is an enlarged view of a portion Q in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0037] Hereinafter, the embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, various embodiments of the present invention can be embodied in many different forms, and should not be construed as being limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art. Elements identified using the same or similar reference symbols refer to the same or similar elements.

[0038] The terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the present invention. In this specification, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It will be further understood that, as used herein, the terms "comprises" and / or "comprising" specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0039] When an element is referred to as being "connected" or "coupled" to another element, it will be understood that it may be directly connected or coupled to the other element, or there may be intervening elements. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

[0040] In this specification, terms such as first, second, etc. may be used to describe various elements, but it is understood that these elements should not be limited by these terms. These terms are used only to distinguish one element from another. Thus, a first element can also be called a second element without departing from the teachings of the present invention.

[0041] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which the present invention belongs. Furthermore, terms as defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly defined in this specification.

[0042] 1, 2, and 18, an embodiment of the present disclosure provides a child safety seat. The child safety seat includes a seat base 1 and a seat body 2, and the seat body 2 is detachably fixed to the seat base 1. This child safety seat has a simple structure, allows a user to easily observe the connection state between the seat base 1 and the seat body 2, and is highly safe.

[0043] 1 to 3, 6, 10, and 18 to 20, the seat base 1 includes a buckle mechanism 100, a link mechanism 200, a display mechanism 300, an unlocking mechanism 400, and an attachment base 101. The buckle mechanism 100 is configured to buckle-lock the seat base 1 and the seat body 2 together. When the lock of the buckle mechanism 100 is released, the seat body 2 can be removed from the seat base 1. The display mechanism 300 includes a display area that can be configured to display a buckled state of the seat base 1 and the seat body 2. The link mechanism 200 is disposed between the buckle mechanism 100 and the display mechanism 300. When the seat base 1 is buckled and fixed to the seat body 2, the buckle mechanism 100 drives and moves the display mechanism 300, thereby changing the display state of the display area to a first display state. When the seat body 2 is detached from the seat base 1, the display state of the display area is changed to the second display state, so that the user can easily observe the fastening state between the seat body 2 and the seat base 1 during the process of mounting or using the seat, and therefore can confirm that the seat body 2 and the seat base 1 are completely mounted. The unlocking mechanism 400 is configured to drive the buckle mechanism 100 to unlock it.

[0044] 1 to 4, a mounting base 101 is provided with a buckle groove 102. A buckle mechanism 100 is attached to the inside of the mounting base 101, and a lock hook 110 (described in detail later) of the buckle mechanism 100 protrudes into the buckle groove 102. A buckle rod 201 for buckling into the lock hook 110 is disposed at the bottom of the seat main body 2. The buckle rod 201 is buckled into the buckle groove 102 and locked into the lock hook 110, so that the seat base 1 and the seat main body 2 are buckled and locked. If the buckle rod 201 comes off the lock hook 110, there is a possibility that the seat main body 2 will come off the seat base 1.

[0045] In the illustrated embodiment, four buckle grooves 102 may be provided in the mounting base 101, two buckle grooves 102 may be provided at each of the front and rear ends of the seat base 1, and the two buckle grooves 102 at both ends may be provided at intervals. Correspondingly, four buckle mechanisms 100 are provided (see FIG. 4), each buckle mechanism 100 is arranged in one-to-one correspondence with the buckle grooves 102, and the lock hooks 110 of each buckle mechanism 100 protrude into the buckle grooves 102. Four or two buckle rods 201 are arranged at the bottom of the seat main body 2, and are buckled in correspondence with the four buckle grooves 102. It should be understood that the numbers of the buckle grooves 102 and the buckle rods 201 are not limited to these, and can be flexibly configured as necessary.

[0046] 4, 5, 8, 12 and 13, the four buckle mechanisms 100 have the same structure, and the two buckle mechanisms 100 at the front end of the seat base 1 are arranged symmetrically, and the two buckle mechanisms 100 at the rear end of the seat base 1 are arranged symmetrically. Specifically, the seat base 1 is provided with a fastening plate 103 extending in the vertical direction, and each buckle mechanism 100 is arranged corresponding to the fastening plate 103. The specific structure of one example of the buckle mechanism 100 will be described in detail below.

[0047] Referring to Figures 4 and 5, the buckle mechanism 100 includes a locking hook 110, a fastening element 120, a fifth restoring element 130, a stopper 140, a sixth restoring element 150, a sliding element 160, and a third restoring element 170.

[0048] 2 and 5, the locking hook 110 is pivotally connected to the fastening plate 103 via a pivoting shaft 113, and has an open position and a closed position. The locking hook 110 has a hook portion 111 that protrudes into the buckle groove 102, and a locking groove 112 is provided below the hook portion 111. When the locking hook 110 is in the closed position, the buckle rod 201 (see FIG. 3) may be restrained in the locking groove 112. When the locking hook 110 is in the open position, the buckle rod 201 can be disengaged from the locking groove 112.

[0049] 5 and 13, the fastening element 120 is pivotally connected to a side of the locking hook 110 remote from the fastening plate 103 via a pivot shaft 113. A fifth restoring element 130 contacts each of the fastening element 120 and the locking hook 110. The fifth restoring element 130 always allows the locking hook 110 to rotate towards the open position.

[0050] Specifically, referring to FIG. 2 and FIG. 5, one end of the stopper 140 is pivotally connected to the fastening plate 103, and the pivot shaft of the stopper 140 is parallel to the pivot shaft 113 of the locking hook 110. The other end of the stopper 140 protrudes toward the fastening element 120 and is pivotally connected to the locking hook 110, and the stopper 140 may abut against the fastening element 120. The sixth restoring element 150 is attached to the rotating shaft of the stopper 140, and both ends of the sixth restoring element 150 abut against the fastening plate 103 and the stopper 140, respectively, and the sixth restoring element 150 can always rotate the locking hook 110 to the open position. More specifically, the stopper 140 has a protruding portion 141 protruding toward the locking hook 110, and the protruding portion 141 protrudes into the buckle groove 102.

[0051] 2, 5 and 8, in the process of moving the buckle rod 201 into the buckle groove 102, the buckle rod 201 presses the hook portion 111, so that the locking hook 110 rotates against the elastic force of the fifth restoring element 130, and therefore the hook portion 111 rotates to be located above the buckling rod 201. Meanwhile, the buckling rod 201 further presses the protrusion 141 of the stopper 140 during the buckling process, so that the locking hook 110 rotates toward the fastening element 120 against the elastic force of the sixth restoring element 150. In this process, the stopper 140 drives the end of the locking hook 110 connected to the stopper 140 to move, and further drives the locking hook 110 to be pivotable to the closed position. Since the locking hook 110 can be quickly buckled to the buckle rod 201 under double force, the buckle rod 201 can be buckled to the locking hook 110 more quickly and easily, and the seat body 2 can be quickly installed and locked. Moreover, when the locking hook 110 is in the closed position, the stopper 140 abuts against the fastening element 120 to keep the locking hook 110 stably locked.

[0052] Correspondingly, in the process of the locking hook 110 pivoting to the open position, the stopper 140 is restored under the action of the sixth restoring element 150. In other words, the stopper 140 pivots upward and no longer abuts against the fastening element 120, moving the end of the locking hook 110 connected to the stopper 140 and generating a force driving the locking hook 110 to pivot toward the open position. Under the cooperative action of the fifth restoring element 130 and the sixth restoring element 150, the locking hook 110 can be opened quickly, the buckle rod 201 can be disengaged more easily and quickly, and the seat body 2 can be removed quickly.

[0053] Specifically, the slide element 160 is movably disposed on the mounting base 101, and the slide element 160 can abut against the four locking hooks 110, thus ensuring that the four locking hooks 110 are simultaneously maintained in an open or closed position, referring to Figures 4 and 5.

[0054] 4, 10 to 13, and 23 to 26, the sliding element 160 is substantially rectangular in shape. Blocking portions 161 are respectively disposed at the four corners of the sliding element 160, and each of the four blocking portions 161 abuts against each locking hook 110. The sliding element 160 has a locked position and an unlocked position. When the sliding element 160 is in the locked position, the four blocking portions 161 of the sliding element 160 simultaneously maintain the four locking hooks 110 in the closed position. When the sliding element 160 slides to the unlocked position along the direction indicated by the arrow F1, the four locking hooks 110 pivot and rotate to the open position, and then the four blocking portions 161 can abut against the locking hooks 110 again to maintain the locking hooks 110 in the open position. One sliding element 160 simultaneously drives the four locking hooks 110, synchronously performing the locking and unlocking, and simplifying the structure. One end of the third restoring element 170 is fixed to the sliding element 160, and the other end of the third restoring element 170 is fixed to the mounting base 101. The third restoring element 170 always allows the sliding element 160 to slide toward the locking position, and the elastic force of the third restoring element 170 ensures that the sliding element 160 always has a force pressing against the locking hook 110, so that the sliding element 160 can maintain the locking hook 110 in the closed position or the open position.

[0055] 4 and 9, the third restoring element 170 may be a tension spring, but is not limited thereto, and other elastic members may be selected. In the illustrated embodiment, there are two third restoring elements 170 arranged at a distance. The front end of each third restoring element 170 is connected to the slide element 160, and the rear end of the third restoring element 170 is connected to the mounting base 101. The third restoring element 170 has a certain force pulling the slide element 160 toward the rear end of the mounting base 101, that is, the third restoring element 170 always allows the slide element 160 to move toward the rear end of the mounting base 101 along a direction opposite to the direction indicated by the arrow F1 in FIG. 4 and FIG. 10. Thus, the block portions 161 abut against the front side of the locking hook 110, respectively. In another embodiment, referring to FIG. 23 to FIG. 26, it should be understood that the slide element 160 may alternatively abut against the rear side of the locking hook 110. In this case, the third restoring element 170 exerts an opposing force on the sliding element 160 .

[0056] 1 to 5, 8, 12 and 13, the buckle rod 201 presses the hook portion 111 of the locking hook 110 downward to drive the hook portion 111 to pivot, and then the hook portion 111 of the locking hook 110 pivots to a position above the buckle rod 201, that is, the locking hook 110 rotates to the closed position. In this process, the locking hook 110 allows the deformation of the fifth restoring element 130. When the locking hook 110 is in the closed position, the sliding element 160 abuts against the lower end of the locking hook 110, so that the locking hook 110 maintains the closed position. When the sliding element 160 slides to the unlocked position along the direction indicated by the arrow F1, the locking hook 110 loses the force from the sliding element 160, and the fifth restoring element 130 recovers from the deformation, and drives the locking hook 110 to automatically pivot to the open position along the direction indicated by the arrow F3 in FIG. 12 and FIG. 13. In this manner, the buckle rod 201 is released from the lock hook 110, so that the buckle rod 201 can be disengaged from the buckle groove 102 of the lock hook 110, and the seat main body 2 can be detached from the seat base 1. As for the lock hook 110 in the open position, the slide element 160 receives the force of the third restoring element 170 and abuts against the lower end of the lock hook 110 again, so that the lock hook 110 maintains the open position and cannot be closed.

[0057] In the illustrated embodiment, the sliding element 160 moves to drive the linkage 200, causing the display mechanism 300 to change display states.

[0058] Specifically, with reference to FIGS. 6, 7, 10 and 11, linkage 200 includes a link element 210, a first return element 220, a rotating element 230, a push button 240, and a second return element 250. As shown in FIG.

[0059] 6, 7 and 11, the link element 210 is movably mounted on the mounting base 101, and one end of the link element 210 is connected to the display area. The link element 210 has a first display position and a second display position opposite to each other. When the link element 210 is in the different display positions, the display area is in a different display state. The first restoring element 220 is disposed between the link element 210 and the mounting base 101, and referring to FIG. 10 and FIG. 16, the first restoring element 220 always allows the link element 210 to move toward the second indication position.

[0060] 9, 10, 11 and 17, the rotating element 230 is a substantially L-shaped sheet, and the middle part of the rotating element 230 is pivotally connected to the mounting base 101. The rotating element 230 has a first connecting end 231 and a second connecting end 232, and the first connecting end 231 and the second connecting end 232 form an angle with respect to the pivot shaft of the rotating element 230. The first connecting end 231 is pivotally connected to the link element 210, and the second connecting end 232 has an abutting portion 233 extending vertically, i.e., the abutting portion 233 extends along the axial direction of the pivot shaft of the rotating element 230. The abutting portion 233 is located below the push button 240 and abuts against the push button 240. When the push button 240 acts on the abutting portion 233, the rotating element 230 can be driven to rotate. Furthermore, the slide element 160 has a push protrusion 162 that protrudes downward, and the push protrusion 162 slidably cooperates with the upper end of the push button 240. When the slide element 160 slides, the push protrusion 162 presses the push button 240 and slides downward, i.e., slides along the direction opposite to the direction indicated by the arrow F2 shown in FIG.

[0061] 9, 11 and 15, a protrusion block 241 that protrudes along the radial direction of the push button 240 is provided at the upper end of the push button 240, and the second restoring element 250 is provided in a sleeve-like shape on the push button 240 and abuts against the mounting base 101 and the protrusion block 241, respectively. The second restoring element 250 always allows the push button 240 to move in the direction opposite to the direction in which the push button 240 is pressed by the buckle mechanism 100.

[0062] 1, 16, and 17, the display area of ​​the display mechanism 300 includes a first display area 310 and a second display area 320, both of which are located at an end of the link element 210 away from the rotating element 230. The first display area 310 and the second display area 320 can be different colors, patterns, or other warning signs. For example, in this embodiment, the first display area 310 is painted green and the second display area 320 is painted red, which can clearly indicate the status of the locking hook 110.

[0063] 1 and 4, the display mechanism 300 further includes a display window 330 provided at the front end of the mounting base 101, and the first display area 310 and the second display area 320 are provided below the display window 330. When the link element 210 moves, the first display area 310 and the second display area 320 selectively face the display window 330, that is, the display areas are switched between a first display state and a second display state. The first display area 310 corresponds to the first display state, and the second display area 320 corresponds to the second display state.

[0064] 10, 11, 16 and 17, in the process of buckling the seat base 1 to the seat main body 2, the slide element 160 moves in a direction opposite to the direction indicated by the arrow F1 in FIG. 10 and FIG. 14. The pressing protrusion 162 provided on the slide element 160 presses the push button 240 downward, so that the push button 240 moves downward, that is, along a direction opposite to the direction indicated by the arrow F2 in FIG. 11 and FIG. 15. In this process, the second restoring element 250 is compressed and deformed. In the process of moving downward, the push button 240 presses the abutment portion 233 of the rotating element 230, so that the rotating element 230 pivots about the pivot shaft of the rotating element 230 along the direction indicated by the arrow F5 in FIG. 7 and FIG. 11. Thus, the first connecting end 231 of the rotating element 230 pivots to drive the link element 210 to slide along the direction indicated by the arrow F4 in FIG. 10 and FIG. 11. During this process, the link element 210 presses and deforms the first restoring element 220. When the seat main body 2 is completely buckled to the seat base 1, the lock hook 110 rotates to the closed position, the slide element 160 is in the locking position that keeps the push button 240 in the low position, and the link element 210 slides to the first indicating position. In other words, the first indicating area 310 (the green area) is aligned with the indicating window 330, i.e., the indicating area is in the first indicating state, indicating that the seat main body 2 is completely buckled to the seat base 1.

[0065] When the seat main body 2 is removed from the seat base 1, the lock hook 110 is released. When the slide element 160 moves in the direction indicated by the arrow F1 in FIG. 10, the pressing protrusion 162 provided on the slide element 160 is released from the push button 240, and the push button 240 receives the biasing force of the second restoring element 250 and slides upward along the direction indicated by the arrow F2 in FIG. 11. At the same time, the first restoring element 220 recovers from the deformation and acts on the link element 210, driving the link element 210 to slide along the direction opposite to the direction indicated by the arrow F4 in FIG. 10 and FIG. 11. When the link element 210 slides to the second indication position, the second indication area 320 (red area) is aligned with the indication window 330, i.e., the indication state of the indication area is driven to switch to the second indication state, indicating that the seat base 1 is not connected to the seat main body 2.

[0066] In an embodiment, referring to Figures 4, 6 to 11, 14 and 15, the unlocking mechanism 400 includes a drive element 410, a first mandrel 420, a second mandrel 430, a fourth restoring element 440, a handle 450, and a tension element 460.

[0067] 4, 6 to 11, 14 and 15, the driving element 410 may be movably mounted on the mounting base 101 and has a first position and a second position opposite to each other. The first mandrel 420 is movably arranged and slidably cooperates with the driving element 410. The moving direction of the first mandrel 420 intersects with the moving direction of the driving element 410. The second mandrel 430 is inserted into the push button 240 and movably arranged. Both ends of the second mandrel 430 abut against the first mandrel 420 and the slide element 160, respectively, and the first mandrel 420 moves the second mandrel 430 in the same direction. When the drive element 410 is subjected to a force and moves along the direction indicated by arrow F4 shown in Figures 7, 10, 11, 14 and 15, the first mandrel 420 is driven to move along the direction indicated by arrow F2, pushing the second mandrel 430 to move along the direction indicated by arrow F2, driving the slide element 160 to move along the direction indicated by arrow F1 so that it no longer abuts against the locking hook 110 and the locking hook 110 can pivot to the open position.

[0068] 7 and 9, the driving element 410 includes a driving chute 411 and a slide groove 412 that cross each other. The slide groove 412 extends along the sliding direction. The mounting block 104 is disposed on the mounting base 101. The third guide rod 105 is disposed on the mounting block 104, and the third guide rod 105 is inserted into the slide groove 412 and slides along the slide groove 412, so that the driving element 410 is slidably connected to the mounting block 104. The first mandrel 420 is slidably connected to the mounting block 104. The first guide rod 421 is disposed on the first mandrel 420, and the first guide rod 421 is inserted into the driving chute 411 and can slide along the driving chute 411, so that the first mandrel 420 is slidably connected to the driving element 410. When the driving element 410 slides from the first position to the second position along the direction indicated by the arrow F4 shown in Figures 7, 10, 11, 14 and 15, the driving chute 411 acts on the first guide rod 421 to drive the first mandrel 420 to move upward along the direction indicated by the arrow F2. The fourth restoring element 440 is disposed between the driving element 410 and the mounting block 104. During the process of the driving element 410 sliding to the second position, the fourth restoring element 440 is compressed, so that the fourth restoring element 440 always allows the driving element 410 to move toward the first position.

[0069] 9 and 15, the second mandrel 430 is slidably connected to the mounting base 101 via a pin element, and the second mandrel 430 is provided with a drive slope 431 at an end thereof remote from the first mandrel 420. The driven slope 163 cooperating with the drive slope 431 is disposed substantially in the center of the slide element 160. When the second mandrel 430 moves upward along the direction indicated by the arrow F2, the drive slope 431 acts on the driven slope 163 to move the slide element 160 along the direction indicated by the arrow F1.

[0070] 1, 4, 6 and 7, the handle 450 is disposed at the front end of the seat base 1 adjacent to the display mechanism 300 and is exposed on the top surface of the seat base 1 for easy operation by a user. The tension element 460 is connected between the handle 450 and the drive element 410. When the handle 450 is operated, the tension element 460 pulls the drive element 410, causing it to slide from the first position to the second position. The tension element 460 may be, but is not limited to, a steel wire rope, and may be other similar components having desired toughness and strength.

[0071] 4, 6 to 11, 14 and 15, when the driving element 410 is in the first position, referring to Figs. 7, 11 and 15, the first mandrel 420 is retracted into the driving element 410, and the fourth restoring element 440 is in a natural state. In this case, the sliding element 160 is in a locking position, and the locking hook 110 is maintained in a closed position. When the handle 450 is pulled, the handle 450 pulls the driving element 410 through the pulling element 460 to slide along the direction indicated by the arrow F4 shown in Figs. 7, 10, 11, 14 and 15. In this process, the driving element 410 acts on the fourth restoring element 440 to deform it. During the sliding process of the driving element 410, the driving chute 411 drives the first mandrel 420 to slide upward along the direction indicated by the arrow F2, and the first mandrel 420 pushes the second mandrel 430 to slide upward along the direction indicated by the arrow F2. The driving slope 431 on the second mandrel 430 acts on the driving slope 163 to move the sliding element 160 along the direction indicated by the arrow F1 until the sliding element 160 moves to the unlocked position. During the sliding process of the sliding element 160, the third restoring element 170 is further stretched. When the sliding element 160 moves to the unlocked position, the locking hook 110 can automatically pivot open under the action of the fifth restoring element 130.

[0072] After the handle 450 is released, the drive element 410 returns to the first position under the action of the fourth restoring element 440 and drives the first mandrel 420 to slide downwards in the direction opposite to that indicated by the arrow F2, so that the second mandrel 430 also slides downwards along this direction. As the sliding element 160 loses the force of the second mandrel 430, it returns under the action of the third restoring element 170, thereby pressing again against the locking hook 110 and keeping it in the open position.

[0073] In another embodiment, referring to Figures 22 to 34, the unlocking mechanism 400 includes a first pivot element 410a, a first pushing element 420a, a second pushing element 430a, a second pivot element 440a, a seventh restoring element 450a, a handle 450, and a pulling element 460.

[0074] Specifically, the first pivot element 410a is a substantially triangular sheet, and the positions of the three vertices of the first pivot element 410a respectively have a first pivot end 411a, a driving end 412a, and a free end 413a, with reference to Figs. 28 and 30. The first pivot end 411a is pivotally connected to the mounting base 101 and connected to one end of the tension element 460, and the first pivot element 410a can rotate around the first pivot end 411a to a third position or a fourth position. The mounting cylinder 106 is disposed on the mounting base 101, and the mounting cylinder 106 is provided with a driving guide groove 107 along the direction F2 in Figs. 28 and 30. The first pressing element 420a is substantially cylindrical and slidably disposed in the mounting cylinder 106. The second guide rod 421a is disposed on the first pressing element 420a, with reference to Figs. 32 and 34. The second guide rod 421a is inserted into the drive guide groove 107 and moves along the drive guide groove 107, so that the first pressing element 420a is slidably connected to the mounting cylinder 106. The second guide rod 421a extends from the drive guide groove 107 into the mounting cylinder 106 and is connected to the drive end 412a. When the first pivot element 410a rotates from the third position to the fourth position along the direction indicated by the arrow F8 in Figs. 27 and 29, the drive end 412a of the first pivot element 410a moves upward along the drive guide groove 107 along the direction indicated by the arrow F2. At the same time, the drive guide groove 107 acts on the second guide rod 421a to drive the first pressing element 420a to move upward along the direction indicated by the arrow F2 with reference to FIGS.

[0075] 32 and 34, the second pressing element 430a is movably disposed between the first pressing element 420a and the slide element 160. The second pressing element 430a has a mounting groove 431a, and the second pivot element 440a is rotatably disposed in the mounting groove 431a. The outer side of the bottom wall of the mounting groove 431a abuts against the first pressing element 420a. The second pivot element 440a is a substantially triangular sheet structure. The two vertex positions of the second pivot element 440a respectively have a second pivot end 441a and an abutment end 442a, the second pivot end 441a is pivotally connected to the side wall of the mounting groove 431a, and the abutment end 442a is configured to abut against the slide element 160. Specifically, the abutment protrusion block 164 may be disposed around the middle position of the slide element 160, and the abutment end 442a is configured to abut against the abutment protrusion block 164. When the first pivot element 410a receives a force and rotates in the direction indicated by the arrow F8 shown in Figs. 27 and 29, the first pressing element 420a is driven to move in the direction indicated by the arrow F2, and pushes the second pressing element 430a to rotate the second pivot element 440a in the direction indicated by the arrow F9 shown in Figs. 32 and 34. In this manner, the abutment end 442a pushes the abutment protrusion block 164 to move the slide element 160 in the opposite direction to the direction indicated by the arrow F1, and drives it to no longer abut against the locking hook 110, so that the locking hook 110 can be pivotally rotated to the open position, with reference to Figs. 23 to 26.

[0076] 32 and 34, the seventh restoring element 450a abuts against the first pivot element 410a and the mounting base 101, respectively. In the process of the first pivot element 410a rotating along the direction indicated by the arrow F8 shown in FIGS. 27 and 29, the seventh restoring element 450a is compressed. Thus, the seventh restoring element 450a allows the first pivot element 410a to always have a tendency to rotate to be restored along the direction opposite to the direction indicated by the arrow F8 shown in FIGS. 27 and 29.

[0077] 19 and 20, there are two handles 450, which are arranged on both sides of the mounting base 101 and exposed on the side of the mounting base 101, facilitating operation by the user. In the above-described embodiment, the handles 450 are arranged at the front end of the mounting base 101, but by arranging the handles 450 on the sides of the mounting base 101, operation can be made easier. This is because the front end of the mounting base 101 is usually difficult to reach because it is blocked by the seat body 2 or the front car seat, but the side of the mounting base 101 faces the operator directly, making operation easier.

[0078] 20, 27, and 29, there are two corresponding tension elements 460, each tension element 460 is connected between the handle 450 on the side of the tension element 460 and the first pivot element 410a. When the handle 450 is operated, the tension element 460 is pulled and rotates the first pivot element 410a from the third position to the fourth position. In the illustrated embodiment, the tension element 460 can be used to pull and drive the first pivot element 410a by operating the handle 450 upward. In other embodiments, the handle 450 can be operated by other means. The tension element 460 may be, but is not limited to, a steel wire rope, and may be other similar parts having desired toughness and strength. Specifically, the mounting base 101 is provided with a guide element 108, and the guide element 108 is provided with an arc-shaped guide portion. One end of the tension element 460 is connected to the handle 450 on either side of the tension element 460, and the other end of the tension element 460 enters the mounting base 101 along the direction indicated by arrow F6 (i.e., the horizontal width of the mounting base 101), is guided by the guide element 108 around the guide portion, and is connected to the first pivot element 410a along the direction indicated by arrow F7 (i.e., the longitudinal direction of the mounting base 101).

[0079] 21 to 34, when the first pivot element 410a is in the third position, the first pressing element 420a is in a relatively low position in the mounting cylinder 106, and the seventh restoring element 450a is in a natural state, referring to FIG. 32. In this case, the slide element 160 is in the locking position, and the lock hook 110 is maintained in the closed position, referring to FIG. 30. The handle 450 is pulled to pull the first pivot element 410a through the pulling element 460 so as to rotate along the direction indicated by the arrow F8 shown in FIG. 29. In this process, the first pivot element 410a acts on the seventh restoring element 450a and deforms it. In the process of rotating the first pivot element 410a, the driving guide groove 107 drives the first pressing element 420a to slide upward in the direction indicated by the arrow F2. Next, the first pressing element 420a pushes the second pressing element 430a to slide upward along the direction indicated by the arrow F2, and the side wall or bottom wall of the mounting groove 431a of the second pressing element 430a pushes the second pivot element 440a to rotate along the direction indicated by the arrow F9 in FIG. 32. As a result, referring to FIG. 34, the abutting end 442a4 abuts against the abutting protrusion block 164 to drive the sliding element 160 to move along the direction opposite to the direction indicated by the arrow F1 until the sliding element 160 moves to the unlocked position. In the sliding process of the sliding element 160, the third restoring element 170 is further stretched. When the sliding element 160 moves to the unlocked position, the locking hook 110 can automatically pivot open due to the action of the fifth restoring element 130.

[0080] After the handle 450 is released, the first pivot element 410a returns to the third position under the action of the seventh restoring element 450a, which drives the first pressing element 420a to slide downward in the direction opposite to the direction indicated by the arrow F2, and the second pressing element 430a also slides downward in this direction, see Fig. 32. See Fig. 32, the second pivot element 440a rotates in the direction opposite to the direction indicated by the arrow F9 and no longer abuts against the abutment protrusion block 164. The sliding element 160 loses the force of the second pivot element 440a, so that it returns under the action of the third restoring element 170, see Fig. 28, and is thereby pressed against the locking hook 110 again to maintain the locking hook 110 in the open position.

[0081] 1 to 34, the operating principle of the seat base 1 for a child safety seat will be explained in more detail.

[0082] When the seat body 2 is not buckled to the seat base 1, under the elastic force of the fifth restoring element 130, the locking hook 110 is located in the open position shown in Figures 5 and 6. At the same time, the slide element 160 is located in the unlocked position of Figure 6, and the link element 210 is located in the second indicating position, i.e., the second indicating area 320 (red area) is aligned with the indicating window 330.

[0083] When the buckle rod 201 of the seat body 2 is buckled into the buckle groove 102 of the seat base 1, the buckle rod 201 presses the hook portion 111 of the locking hook 110 downward, driving the hook portion 111 to pivot around the pivot shaft 113. Thus, the locking hook 110 is driven to overcome the elastic force of the fifth restoring element 130, and the hook portion 111 rotates to a position above the buckling rod 201, locking the buckle rod 201 that has moved into the buckling groove 102. After the locking hook 110 pivots around the pivot shaft 113, the stopper 140 abuts against the fastening element 120, maintaining the locking hook 110 stably locked. After the locking hook 110 is rotated and buckled to the buckle rod 201, the sliding element 160, under the elastic force of the third restoring element 170, slides along a direction opposite to the direction indicated by the arrow F1 in Figures 4, 6, 10, 11, and 14, and abuts against the locking hook 110 again, maintaining the locking hook 110 in the closed position.

[0084] In the process of sliding, the slide element 160 drives the pressing protrusion 162 below the slide element 160 to press the push button 240 so as to move downward along the direction indicated by the arrow F2 shown in Figures 11, 14, and 15. In the process of moving, the push button 240 acts on the abutment portion 233 of the rotating element 230, and the rotating element 230 pivots about the pivot shaft of the rotating element 230 along the direction indicated by the arrow F5 shown in Figure 11. Thus, the first connecting end 231 of the rotating element 230 swings to drive the link element 210 to slide along the direction indicated by the arrow F4 in Figures 10, 11, and 16, and the first indication area 310 (green area) is aligned with the indication window 330, indicating that the seat main body 2 is buckled to the seat base 1. Furthermore, the push button 240 presses and deforms the second restoring element 250 during the downward movement, and the link element 210 presses and deforms the first restoring element 220 during the sliding movement.

[0085] When the seat body 2 needs to be removed from the seat base 1, in the embodiment, the user pulls the handle 450, which drives the driving element 410 to slide to the second position along the direction indicated by the arrow F4 in Figures 7, 10, 11, 14, and 15. In this process, the driving element 410 drives the first mandrel 420 to move upward along the direction indicated by the arrow F2, which then pushes the second mandrel 430 to continue moving in this direction, and the driving slope 431 of the second mandrel 430 acts on the driven slope 163 of the sliding element 160 to drive the sliding element 160 to move along the direction indicated by the arrow F1, and the four block portions 161 on the sliding element 160 no longer abut against the locking hook 110. In this case, the lock hook 110 is automatically pivoted to the open position by the action of the fifth restoring element 130, and the hook portion 111 rotates so as to move away from the buckle groove 102. In this case, the seat main body 2 can be lifted from the seat base 1 and removed.

[0086] In the process of the sliding element 160 moving along the direction indicated by the arrow F1, the pressing protrusion 162 of the sliding element 160 gradually moves away from the push button 240 and no longer exerts a downward force on the push button 240. Therefore, the push button 240 moves upward and restores under the action of the second restoring element 250, i.e., the push button 240 moves upward along the direction indicated by the arrow F2 shown in Figures 11, 14, and 15, and then no longer exerts a force on the abutment portion 233 of the rotating element 230. In this case, the link element 210 restores under the action of the first restoring element 220, i.e., slides along the direction opposite to the direction indicated by the arrow F4, and the second indication area 320 (red area) is again aligned with the indication window 330, indicating that the seat main body 2 is not buckled to the seat base 1.

[0087] In another embodiment, the user manipulates the handle 450, which drives the first pivot element 410a to rotate to the fourth position along the direction indicated by the arrow F8 in Figures 27 and 29. In the process, the first pivot element 410a drives the first pressing element 420a to move upward along the direction indicated by the arrow F2, which in turn pushes the second pressing element 430a to continue moving in this direction, which pushes the second pivot element 440a, causing the second pivot element 440a to rotate in the direction indicated by the arrow F9 in Figures 32 and 34. The abutment end 442a of the second pivot element 440a acts on the abutment protrusion block 164 of the slide element 160, driving the slide element 160 to move in the direction opposite to the direction indicated by the arrow F1, so that the four block portions 161 on the slide element 160 no longer abut against the lock hook 110. In this case, the lock hook 110 is automatically pivoted to the open position by the action of the fifth restoring element 130, and the hook portion 111 rotates so as to move away from the buckle groove 102. In this case, the seat main body 2 can be lifted from the seat base 1 and removed.

[0088] In the process of the sliding element 160 moving along the direction opposite to the direction indicated by the arrow F1, the pressing protrusion 162 of the sliding element 160 gradually moves away from the push button 240 and no longer exerts a downward force on the push button 240. Therefore, the push button 240 moves upward and restores under the action of the second restoring element 250, i.e., the push button 240 moves upward along the direction indicated by the arrow F2 in Figs. 28 and 30, and then no longer exerts a force on the abutment portion 233 of the rotating element 230. In this case, the link element 210 restores under the action of the first restoring element 220, i.e., slides along the direction opposite to the direction indicated by the arrow F4, and the second indication area 320 (red area) is again aligned with the indication window 330, indicating that the seat main body 2 is not buckled to the seat base 1.

[0089] In conclusion, according to the seat base 1 of the present disclosure, the link mechanism 200 is disposed between the buckle mechanism 100 and the display mechanism 300. The buckle mechanism 100 provides a buckle between the seat base 1 and the seat body 2, and when the buckle mechanism 100 is buckled to the seat body 2 or released from the seat body 2, the link mechanism 200 can drive the display area to present different display states. In this way, the user can conveniently view the connection state between the seat base 1 and the seat body 2. This is more convenient and has high safety in use. In addition, the seat base 1 has a simple structure, and is low in manufacturing difficulty and manufacturing cost.

[0090] The technical features of the above-described embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as the combination of these technical features does not cause a contradiction, the combination shall be within the scope of the disclosure of this specification.

[0091] The above embodiments are merely enumerated and described in detail, but should not be understood as limiting the scope of the present invention. It should be noted that a person skilled in the art can make some further improvements and modifications without departing from the spirit of the present invention, and these improvements and modifications also belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. A seat base for a child safety seat, comprising: A buckle mechanism configured to be buckled to a seat body; a display mechanism including a display area, the display area being configured to display a buckle state between the seat base and the seat body; and a link mechanism disposed between the buckle mechanism and the display mechanism; A mounting base; the link mechanism includes a rotating element rotatably connected to an interior of the mounting base, and a link element connected to the rotating element and the display area; When the seat base is buckled to the seat body, the rotating element rotates to drive the link element and drive the display area to present a first display state, and when the seat base is unbuckled from the seat body, the rotating element rotates to drive the link element and drive the display area to present a second display state; The link mechanism further includes a push button movably disposed on the mounting base, the push button abutting against the buckle mechanism and the rotating element, respectively, the buckle mechanism being operable to slide the push button, and the push button rotating the rotating element. Seat base.

2. 2. The seat base of claim 1, wherein the link mechanism further comprises a first restoring element, the first restoring element abutting against the link element and the mounting base, respectively, and the first restoring element always allows the link element to move in a direction that drives the display area to exhibit the second display state.

3. 2. The seat base according to claim 1, wherein the link mechanism further comprises a second restoring element, the second restoring element abutting against the mounting base and the push button, respectively, and the second restoring element always allows the push button to move in a direction opposite to the direction in which the push button is pressed by the buckle mechanism.

4. 2. The seat base according to claim 1, wherein the buckle mechanism includes a slide element slidably arranged on the mounting base, and when the slide element slides, the slide element presses the push button and is movable along a direction intersecting the sliding direction of the slide element, and when the push button moves, the push button drives the rotating element to rotate and drives the link element to move.

5. The seat base according to claim 4, wherein the slide element is provided with a pressing protrusion protruding along a direction intersecting a sliding direction of the slide element, and when the slide element slides, the pressing protrusion presses and moves the push button.

6. 5. The seat base of claim 4, wherein the buckle mechanism further comprises a locking hook pivotally connected to the mounting base and having an open position and a closed position, the locking hook being configured to be removably fixed to the seat body, and the sliding element being capable of maintaining the locking hook in the open position or the closed position.

7. 7. The seat base of claim 6, wherein the buckle mechanism further comprises a third restoring element, the third restoring element abutting against the slide element and the mounting base, respectively, and the third restoring element always allows the slide element to move in a direction that maintains the locking hook in the open position.

8. 7. The seat base of claim 6, wherein the buckle mechanism further comprises a fastening element attached to the mounting base and a fifth restoring element connected to the fastening element, the locking hook is pivotally connected to the fastening element and abuts against the fifth restoring element, and the fifth restoring element always allows the locking hook to rotate toward the open position.

9. 9. The seat base according to claim 8, wherein the buckle mechanism further comprises a stopper and a sixth restoring element, one end of the stopper is pivotally connected to the mounting base, and the other end of the stopper is connected to the locking hook, the sixth restoring element abuts against the stopper and the mounting base, respectively, and the sixth restoring element always allows the locking hook to rotate toward the open position.

10. The seat base of claim 4 , further comprising an unlocking mechanism, the unlocking mechanism being disposed on the mounting base and configured to drive the sliding element to slide.

11. The unlocking mechanism includes a drive element and a first mandrel that cooperate slidably with each other, the drive element is slidably attached to the mounting base, the first mandrel is movably disposed relative to the slide element and abuts against the slide element, and when the drive element receives a force and moves, the drive element can drive the first mandrel to move along a direction intersecting the sliding direction of the drive element, and the first mandrel pushes the slide element to drive the slide element to slide.

11. A seat base according to claim 10.

12. 12. The seat base according to claim 11, wherein the driving element comprises a driving chute intersecting a sliding direction of the driving element, a first guide rod is disposed on the first mandrel, the first guide rod is inserted into the driving chute and moves along the driving chute, and when the driving element slides, the driving chute acts on the first guide rod to drive the first mandrel to move.

13. 12. The seat base according to claim 11, wherein the unlocking mechanism further comprises a second mandrel movably disposed between the first mandrel and the slide element, and when the first mandrel moves, the first mandrel pushes the second mandrel to move in the same direction, and the second mandrel drives the slide element to slide.

14. 14. The seat base of claim 13, wherein the end of the second mandrel is provided with a drive slope, and the sliding element is provided with a driven slope that cooperates with the drive slope, and the drive slope acts on the driven slope to slide the sliding element.

15. The seat base of claim 11, wherein the unlocking mechanism further comprises a handle movably attached to the mounting base, the handle being coupled to the drive element and actuating the drive element to move.

16. The seat base of claim 15, wherein the unlocking mechanism further comprises a tension element coupled between the handle and the drive element.

17. The seat base of claim 15, wherein the handle is disposed at an end of the mounting base adjacent the display mechanism.

18. 12. The seat base of claim 11, wherein the unlocking mechanism further comprises a fourth restoring element, the fourth restoring element abutting the drive element and the mounting base, respectively, the fourth restoring element being configured to drive the drive element to restore it.

19. The seat base of claim 10, wherein the unlocking mechanism comprises a first pivot element and a first pressing element, the first pivot element being pivotally connected to the mounting base, the first pressing element being movably arranged and capable of being driven to move the sliding element, and when the first pivot element rotates under a force, the first pivot element is capable of driving the first pressing element to move along a direction intersecting the sliding direction of the sliding element, and the first pressing element drives the sliding element to slide.

20. 20. The seat base according to claim 19, wherein the mounting base is provided with a drive guide groove intersecting the sliding direction of the slide element, a second guide rod is disposed on the first pressing element, the second guide rod is connected to the first pivot element, the second guide rod is inserted into the drive guide groove and moves along the drive guide groove, and when the first pivot element rotates, the drive guide groove acts on the second guide rod to drive the first pressing element to move.

21. 20. The seat base of claim 19, wherein the unlocking mechanism further comprises a second pressing element and a second pivot element, the second pressing element being movably disposed between the first pressing element and the sliding element, the second pivot element being pivotally connected to the second pressing element and abutting against the sliding element, and when the first pressing element moves, the first pressing element pushes the second pressing element to move in the same direction, and drives the sliding element to slide while the second pivot element rotates.

22. 20. The seat base of claim 19, wherein the unlocking mechanism further comprises at least one handle movably mounted to the mounting base, the at least one handle being coupled to the first pivot element, the at least one handle driving the first pivot element to rotate.

23. The seat base of claim 22, wherein the unlocking mechanism further comprises a tension element coupled between the at least one handle and the first pivot element.

24. The seat base according to claim 22, wherein the at least one handle is disposed on a side surface of the mounting base along a sliding direction of the sliding element.

25. 20. The seat base of claim 19, wherein the unlocking mechanism further comprises a seventh restoring element, the seventh restoring element abutting the first pivot element and the mounting base, respectively, and the seventh restoring element is configured to drive the first pivot element to restore it.

26. The seat base of claim 1 , wherein the indication mechanism further comprises a viewing window disposed in the mounting base, the indication area being aligned with the viewing window.

27. A child safety seat comprising: a seat base according to any one of claims 1 to 26; and a seat body removably fixed to the seat base.

28. 28. The child safety seat of claim 27, wherein the seat base is provided with a buckle groove, the buckle mechanism protrudes partially into the buckle groove, and the seat body is provided with a buckle rod at its bottom that is configured to buckle into the buckle mechanism.

Images