Pull-and-rotate base apparatus of child safety seat

Abstract

A pull-and-rotate base apparatus of a child safety seat, relating to the technical field of children's products and equipment. The apparatus comprises a base (1), a pull-and-rotate seat (2), and an unlocking structure (14). The pull-and-rotate seat (2) is arranged above the base (1), and is engaged with the base (1). The pull-and-rotate seat (2) is capable of rotating relative to the base (1), and when rotating to the left and right sides of the base (1), the pull-and-rotate seat (2) is capable of translating relative to the base (1). The unlocking structure (14) is arranged between the base (1) and the pull-and-rotate seat (2), and is used for being engaged with the pull-and-rotate seat (2) to release or restrict the rotation of the pull-and-rotate seat (2). In the apparatus, a rotation side rail and translation side rails are provided on the base, to simultaneously achieve a rotation function and a translation function of the pull-and-rotate seat. The apparatus has a simple structure and is convenient to use.

Description

Child seat pull-rotation base device TECHNICAL FIELD

[0001] The present application relates to the technical field of children's products, in particular to a child seat pull-rotation base device. BACKGROUND

[0002] To meet the needs of parents and children in daily life, such as travel and dining, a child safety basket is usually installed on a child stroller as part of the child stroller, or installed on a child safety seat as part of the safety child seat. During use, the child basket is usually used with the base, the base is used as the base of the child stroller or child safety seat, and the child basket is placed on the base and locked to ensure safety during use. The firmness of the connection between the child basket and the base is extremely important. The child safety seat in the prior art is usually achieved by the elastic force of a plastic material or a tightening clamp, but the firmness is low, which affects the safety of the child safety seat.

[0003] To solve the above problems, the present application provides a child seat pull-rotation base device, which comprises a base, a pull-rotation seat and an unlocking structure. The pull-rotation seat is arranged between the base and the pull-rotation seat and cooperates with the base. The pull-rotation seat can rotate relative to the base, and when the pull-rotation seat rotates to the left and right sides of the base, it can move horizontally relative to the base. The unlocking structure is arranged on the base and cooperates with the pull-rotation seat to release or limit the rotation of the pull-rotation seat.

[0004] SUMMARY

[0005] To solve the above problems, the present application provides a child seat pull-rotation base device, which comprises a base, a pull-rotation seat and an unlocking structure. The pull-rotation seat is arranged between the base and the pull-rotation seat and cooperates with the base. The pull-rotation seat can rotate relative to the base, and when the pull-rotation seat rotates to the left and right sides of the base, it can move horizontally relative to the base. The unlocking structure is arranged on the base and cooperates with the pull-rotation seat to release or limit the rotation of the pull-rotation seat.

[0006] To achieve the above purpose, the present application provides the following technical solutions:

[0007] A child seat pull-rotation base device, comprising a base, a pull-rotation seat and an unlocking structure. The pull-rotation seat is arranged between the base and the pull-rotation seat and cooperates with the base. The pull-rotation seat can rotate relative to the base, and when the pull-rotation seat rotates to the left and right sides of the base, it can move horizontally relative to the base. The unlocking structure is arranged on the base and cooperates with the pull-rotation seat to release or limit the rotation of the pull-rotation seat.

[0008] Further, the base is provided with a rotating side rail; the left and right sides of the rotating side rail are provided with openings; the left and right sides of the opening are provided with a translation side rail; the pull-out rotating seat is matched with the rotating side rail and the translation side rail.

[0009] Further, the left and right sides of the rotating side rail are provided with a first clamping part; the left and right sides of the pull-out rotating seat are provided with a second clamping part; the first clamping part and the second clamping part are matched with each other to avoid the pull-out rotating seat from being separated from the base during rotation.

[0010] Further, the upper end of the translation side rail is provided with an eave part; the left and right sides of the pull-out rotating seat are provided with a wing; the upper eave part and the wing are matched with each other to avoid the pull-out rotating seat from being separated from the base during translation.

[0011] Further, the upper part of the wing extends outward to form a limiting part; when the pull-out rotating seat is translated to a limit distance, the limiting part is in abutment with the inner side of the translation side rail to avoid the pull-out rotating seat from being pulled out excessively.

[0012] Further, the base is provided with a rotating center rail; the bottom of the pull-out rotating seat is provided with a U-shaped groove; the curvature of the U-shaped groove is the same as that of the rotating center rail; when the pull-out rotating seat is retracted, the rotating center rail is in abutment with the U-shaped groove to avoid the pull-out rotating seat from being excessively translated during retraction.

[0013] Further, the left and right sides of the rotating center rail are provided with a center wing; the left and right sides of the U-shaped groove are provided with a pull-out sliding groove; the pull-out sliding groove and the center wing are matched with each other to avoid the pull-out rotating seat from being turned up during translation.

[0014] Further, the bottom of the pull-out rotating seat is further provided with a hovering plug; the hovering plug is connected with the pull-out rotating seat through a tension structure; one side of the hovering plug is matched with the left and right sides of the rotating center part to form damping when the pull-out rotating seat is rotated to the left and right sides, so as to quickly find the pull-out position.

[0015] Further, the unlocking structure comprises an unlocking plug and an unlocking button; the unlocking plug is arranged in a containing cavity in the base, and one end of the unlocking plug is connected with the unlocking button through a connecting belt; one side of the unlocking plug is provided with a torsional spring; one end of the torsional spring is in abutment with the unlocking plug; the left and right sides of the pull-out rotating seat are provided with an unlocking groove to be matched with the unlocking plug to realize the locking function.

[0016] Further, the reverse limiting assembly is arranged at the position corresponding to the rotating center rail on the pull-rotating seat; the reverse limiting assembly comprises a reverse limiting button and a reverse limiting bolt; the reverse limiting button is in sliding connection with the pull-rotating seat; the reverse limiting bolt comprises a limiting column and a limiting body; the limiting column is arranged on both sides of the limiting body and abuts against one end of the reverse limiting button; the upper end of the limiting body is provided with a containing groove; a spring is arranged in the containing groove; one end of the spring abuts against the bottom surface of the containing groove and the other end abuts against the pull-rotating seat in a compressed state; when the pull-rotating seat rotates to the translation position, the reverse limiting button is actuated to push the limiting column and drive the limiting body to move downward, so that the limiting body abuts against one inner edge of the rotating center rail to avoid reverse rotation of the pull-rotating seat; conversely, the limiting body moves upward to be away from the rotating center rail, so that the reverse rotation limitation on the pull-rotating seat is released.

[0017] The technical scheme disclosed by the application has the beneficial effects that:

[0018] 1. The rotating edge rail and the translation edge rail are arranged on the base, the first clamping part on the rotating edge rail and the second clamping part on the pull-rotating seat are matched with each other to realize the connection between the pull-rotating seat and the base, and the eave part on the translation edge rail and the side wing of the pull-rotating seat are matched with each other, so that the pull-rotating seat can rotate relative to the base and can translate when rotating to the vertical direction, the overall structure is simple, the convenience in use is improved, the pull-rotating seat is prevented from being separated from the base, and the stability is considered.

[0019] 2. The rotating center rail is arranged in the middle of the base, the U-shaped groove is arranged at the bottom of the pull-rotating seat, the center wings on both sides of the rotating center rail and the pull-slots on both sides of the U-shaped groove are matched with each other, so that the pull-rotating seat is prevented from being turned up during pulling, and the stability and safety are further improved.

[0020] 3. The unlocking structure is arranged between the base and the pull-rotating seat and matched with the pull-rotating seat, so that the pull-rotating seat can be locked when not rotating, accidents are avoided, the pull-rotating seat can be unlocked at any time according to the need, and the convenience in use is improved.

[0021] 4. The hovering bolt is arranged on the pull-rotating seat and matched with the rotating center rail, so that the damping is formed during rotation of the pull-rotating seat, the pull-rotating seat can be quickly positioned to the translation position during rotation, and the convenience in use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the content of the present application more easily understood, the present application is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings.

[0023] Fig. 1 is a structural schematic diagram of a child seat pull-rotation base device according to the present application.

[0024] Fig. 2 is a schematic diagram of position relationship when the pull-rotation seat is in translational motion.

[0025] Fig. 3 is a structural schematic diagram of the base.

[0026] Fig. 4 is a structural schematic diagram of the pull-steel frame.

[0027] Fig. 5 is a structural schematic diagram of the pull-cover plate.

[0028] Fig. 6 is a structural schematic diagram of the hovering plug.

[0029] Fig. 7 is a structural schematic diagram of the reverse limiting assembly.

[0030] Fig. 8 is a structural schematic diagram of the unlocking structure.

[0031] Fig. 9 is a sectional view of the unlocking structure.

[0032] In the drawings, 1 is the base; 11 is the rotating edge rail; 111 is the first clamping part; 12 is the translational edge rail; 121 is the eave part; 13 is the rotating center rail; 131 is the center wing; 14 is the unlocking structure; 141 is the unlocking plug; 142 is the torsion spring; 143 is the unlocking button; 144 is the connecting belt; 2 is the pull-rotation seat; 21 is the pull-cover plate; 212 is the side wing; 2121 is the limiting part; 22 is the pull-steel frame; 221 is the hovering plug; 222 is the bottom plate; 223 is the second clamping part; 224 is the U-shaped slot; 2241 is the pull-slotted groove; 23 is the reverse limiting assembly; 232 is the reverse limiting plug; 2321 is the limiting column; 2322 is the limiting body; 2323 is the accommodating recess; 233 is the reverse limiting button; 2331 is the extrusion part. DETAILED DESCRIPTION

[0033] The technical solutions of the present application are further described below in conjunction with the drawings, but are not limited thereto, and any modification or equivalent replacement to the technical solutions of the present application without departing from the spirit and scope of the present application shall be encompassed in the protection scope of the present application.

[0034] As shown in FIG. 1-6, the present application proposes a child seat pull-rotation base device, which is composed of a base 1 and a pull-rotation seat 2, the pull-rotation seat 2 is set on the base 1 and fits with the base 1; the base 1 is provided with a rotation edge rail 11, the pull-rotation seat 2 is matched with the base 1 through the rotation edge rail 11 and can rotate relative to the base 1; the left and right sides of the rotation edge rail 11 are provided with openings, the two sides of the openings are provided with translation edge rails 12, the translation edge rails 12 are matched with the pull-rotation seat 2, so that when the pull-rotation seat 2 rotates to the vertical direction, i.e. left and right directions, it can move in translation depending on the translation edge rails 12. The front side of the base 1 is further provided with an unlocking structure 14, which is used to cooperate with the pull-rotation seat 2 to lock the pull-rotation seat 2 when it is not needed to rotate, and to unlock it when it is needed to rotate.

[0035] As shown in FIG. 1-6, the present application proposes a child seat pull-rotation base device, which is composed of a base 1 and a pull-rotation seat 2, the pull-rotation seat 2 is set on the base 1 and fits with the base 1; the base 1 is provided with a rotation edge rail 11, the pull-rotation seat 2 is matched with the base 1 through the rotation edge rail 11 and can rotate relative to the base 1; the left and right sides of the rotation edge rail 11 are provided with openings, the two sides of the openings are provided with translation edge rails 12, the translation edge rails 12 are matched with the pull-rotation seat 2, so that when the pull-rotation seat 2 rotates to the vertical direction, i.e. left and right directions, it can move in translation depending on the translation edge rails 12. The front side of the base 1 is further provided with an unlocking structure 14, which is used to cooperate with the pull-rotation seat 2 to lock the pull-rotation seat 2 when it is not needed to rotate, and to unlock it when it is needed to rotate.

[0036] The front and back sides of the rotation edge rail 11 are provided with first clamping parts 111, which fit with the second clamping parts 223, by making the first clamping parts 111 and the second clamping parts 223 bite each other, the pull-rotation seat 2 will not separate from the base 1 during rotation, which ensures the stability and safety during operation. The translation edge rail 12 is concave, and a eave part 121 is formed on the top; the eave part 121 is matched with the side wings 212 on the left and right sides of the pull-rotation seat 2, so that when the pull-rotation seat 1 moves in translation, the eave part 121 and the side wings 212 can ensure that the pull-rotation seat 2 will not turn up, which ensures the stability and safety during translation of the pull-rotation seat 2. At the same time, the limiting parts 2121 on the side wings 212 move synchronously during the outward translation of the pull-rotation seat 2, when the cross section of the limiting parts 2121 abuts against the inner side of the translation edge rail 12, it can block the translation movement of the pull-rotation seat 2, so as to limit the maximum translation distance of the pull-rotation seat 2, thereby avoiding the pull-rotation seat 2 from being pulled out too much.

[0037] Preferably, the base 1 is further provided with a rotating center rail 13 located at the center of the rotating side rail 11 and in line with the translating side rail 12; the rotating center rail 13 is circular in shape with the same arc as the arc of the U-shaped groove 224; the top of the rotating center rail 13 is a counterbore with a break on both sides; the front side of the break is provided with a vertical baffle connected to the end faces of the breaks on both sides; the front and back sides of the rotating center rail 13 are provided with center wings 131, which are arc-shaped on both sides and straight on the front and back sides, and have a spacing between the two center wings 131, and the direction of the two center wings 131 is consistent with the direction of the opening of the rotating side rail 11. When the pull-out rotating seat 2 moves in translation, the two center wings 131 cooperate with the pull-out sliding grooves 2241 on both sides of the U-shaped groove 224 to form a double sliding track with the translating side rail 12, which can increase the smoothness of the pull-out rotating seat 2 in sliding, and at the same time, can form a compression effect on the pull-out rotating seat 2, thereby further avoiding the pull-out rotating seat 2 from being turned up, and further improving the stability and safety in the sliding process.

[0038] Preferably, the bottom plate of the pull-out steel frame is further provided with a hovering plug 221, which is arranged at the front side of the U-shaped groove 224 and includes a hovering slider and a tension spring; the width of the hovering slider is adapted to the spacing between the two center wings 131, the rear end is arc-shaped, and both ends of the arc are connected to a slope; the front part of the hovering slider is provided with two hovering long grooves, and the rear part is provided with two hooks; the bottom plate is provided with a boss, and two hooks are fixedly arranged on the boss; the hovering slider is arranged on the boss in sliding connection with the bottom plate, and the hooks on the bottom plate correspond to the hovering long grooves and extend from the hovering long grooves; one end of the tension spring is connected to the hook on the hovering slider, and the other end is connected to the hook on the bottom plate. In the initial state, the pull-out rotating seat 2 is arranged in front-to-back orientation, at this time the tension spring is in a relaxed state, and the hooks on the bottom plate are located at the front end of the hovering long grooves; when the pull-out rotating seat 2 is rotated to the arc edge of the center wing 131, the center wing 131 will form a blocking effect on the hovering plug 221, thereby pushing the hovering plug 221 to move forward, so that the spring is pulled open to form a pulling force, and the hooks on the bottom plate are located at the rear end of the hovering long grooves; when the pull-out rotating seat 2 continues to rotate to the vertical direction, the hovering slider moves to the position between the two center wings 131, so that the hovering slider moves to the direction close to the rotating center rail 13 under the pulling force of the tension spring, thereby the end faces of the two center wings 131 are respectively abutted with the two slopes of the end face of the hovering slider, thereby forming a blocking effect, so that the pull-out rotating seat 2 can generate damping when rotating to the pull-out position, so as to be quickly positioned to the pull-out position; when it is needed to continue to rotate the pull-out rotating seat 2, only an external force is needed to push the pull-out rotating seat 2, so that the hovering slider slides away from the rotating center rail 13 under the pushing force.

[0039] Preferably, as shown in Figs. 8 and 9, the unlocking structure 14 comprises an unlocking bolt 141 and an unlocking button 143, the unlocking bolt 141 is arranged in a receiving cavity in the front side of the base 1 and can slide in the receiving cavity, the front end of the unlocking bolt 141 is connected with the unlocking button 143 through a connecting belt 144, and one side of the unlocking bolt 141 is provided with a torsion spring 142, one end of the torsion spring 142 abuts against the unlocking bolt 141. In use, under the pressure of the torsion spring 142, the unlocking bolt 141 extends to the unlocking groove arranged on the pull-rotary seat 2 in the direction of the pull-rotary seat 2, thereby forming a restriction to the rotary movement of the pull-rotary seat 2, when unlocking is needed, the unlocking button 143 is pulled and the unlocking bolt 141 is driven to move forward through the connecting belt 144, so that the unlocking bolt 141 is separated from the unlocking groove and the torsion spring 142 accumulates elastic potential energy, at this time, the restriction to the rotary movement of the pull-rotary seat 2 is removed; when locking is needed again, the unlocking button 143 is only released, the unlocking bolt 141 extends to the unlocking groove on the surface of the base 1 under the action of the torsion spring 142, thereby realizing automatic locking.

[0040] Preferably, as shown in Figure 7, the pull-out rotary seat 2 is further provided with a reverse limiting assembly 23, which comprises a reverse limiting button 233 and a reverse limiting bolt 232; the reverse limiting button 233 is arranged on the pull-out cover plate 2 at a position corresponding to the rotary center rail 13 and is slidably connected with the pull-out cover plate 2 through a slide, the front and rear ends of the slide are provided with stoppers for limiting the sliding distance of the reverse limiting button 233, the reverse limiting button 233 is provided with extruded portions 2331 extending forward on both sides, and the extruded portions 2331 are inclined surfaces; the reverse limiting bolt 232 is located at the front end of the reverse limiting button 233 and comprises a limiting column 2321 and a limiting body 2322, the limiting column 2321 is arranged on both sides of the limiting body 2322 and abuts against the extruded portions 2331; the limiting body 2322 is in the shape of a square and is provided with a receiving groove 2323 at the upper end, a spring is arranged in the receiving groove 2323, one end surface of the spring abuts against the bottom surface of the receiving groove 2323, and the other end surface abuts against the bottom surface of the pull-out cover plate. In the initial state, the limiting column 2321 is located at the highest position of the inclined surface and under the extrusion of the extruded portions 2331, the spring on the limiting body 2322 is in a compressed state; when the rotary angle of the pull-out rotary seat is 0°-90° and 270°-360°, the reverse limiting bolt 232 is located above the high ribs of the rotary center rail 13 and is limited by the ribs and cannot move downward; when the rotary angle of the pull-out rotary seat 2 is 90°-279°, the reverse limiting bolt 232 is no longer limited by the high ribs below, at this time, by actuating the reverse limiting button 233, the limiting column 2321 is located at the lowest position of the inclined surface, the limiting body 2322 can move downward under the elastic force of the spring, so that the reverse limiting bolt 232 moves downward to the sunken position of the rotary center rail 13, the vertical edge of the ribs, i.e. the vertical plate, blocks the reverse limiting bolt 232, so that the pull-out rotary seat 2 cannot be reversely rotated, thereby forming reverse limiting; conversely, the limiting can be released in the same way.

[0041] The above description is only an embodiment of the present application and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation according to the content of the specification and drawings or direct or indirect application in other related technical fields is also included in the patent protection scope of the present application.

Claims

1. A child seat pull-rotary base device, characterized by, The application relates to a drawer rotating base, which comprises a base (1), a drawer rotating base (2) and an unlocking structure (14); the drawer rotating base (2) is arranged above the base (1) and cooperates with the base (1); the drawer rotating base (2) can rotate relative to the base (1) and can translate relative to the base (1) when the drawer rotating base (2) rotates to the left and right sides of the base (1); the unlocking structure (14) is arranged between the base (1) and the drawer rotating base (2) and is used for cooperating with the drawer rotating base (2) to release or limit the rotation of the drawer rotating base (2).

2. The child seat pull-rotary base device according to claim 1, wherein The base (1) is provided with a rotating side rail (11); the left and right sides of the rotating side rail (11) are provided with openings; the left and right sides of the openings are provided with translation side rails (12); the drawer rotating base (2) cooperates with the rotating side rail (11) and the translation side rail (12).

3. The child seat pull-rotary base apparatus according to claim 2, wherein The left and right sides of the rotating side rail (11) are provided with first clamping parts (111); the left and right sides of the drawer rotating base (2) are provided with second clamping parts (223); the first clamping parts (111) and the second clamping parts (223) cooperate with each other and are used for avoiding separation of the drawer rotating base (2) from the base (1) during rotation.

4. The child seat pull-rotary base apparatus according to claim 3, wherein The upper end of the translation side rail (12) is provided with an eave part (121); the left and right sides of the drawer rotating base (2) are provided with side wings (212); the eave part (121) and the side wings (212) cooperate with each other and are used for avoiding separation of the drawer rotating base (2) from the base (1) during translation.

5. The child seat pull-rotary base device according to claim 4, wherein The upper part of the side wing (212) extends outward to form a limiting part (2121); when the drawer rotating base (2) is translated to a limit distance, the limiting part (2121) abuts against the inner side of the translation side rail (12) and is used for avoiding overpulling of the drawer rotating base (2).

6. The child seat pull-rotary base device according to claim 4, wherein The base (1) is provided with a rotating center rail (13); the bottom of the drawer rotating base (2) is provided with a U-shaped groove (224); the curvature of the U-shaped groove (224) is the same as that of the rotating center rail (13); when the drawer rotating base (2) is retracted, the rotating center rail (13) abuts against the U-shaped groove (224) and is used for avoiding overtranslation of the drawer rotating base (2) during retraction.

7. The child seat pull-rotary base apparatus according to claim 6, wherein The left and right sides of the rotating center rail (13) are provided with center wings (131); the left and right sides of the U-shaped groove (224) are provided with drawer sliding grooves (2241); the drawer sliding grooves (2241) and the center wings (131) cooperate with each other and are used for avoiding upward turning of the drawer rotating base (2) during translation.

8. The child seat pull-rotary base apparatus according to claim 7, wherein, The bottom of the drawer rotating base (2) is further provided with a hovering bolt (221); the hovering bolt (221) is connected with the drawer rotating base (2) through a pulling force structure; one side of the hovering bolt (221) cooperates with the left and right sides of the rotating center rail (13) and is used for forming damping when the drawer rotating base (2) rotates to the left and right sides, so that the drawer rotating base (2) can quickly find a pulling position.

9. The child seat pull-rotary base device according to claim 1, wherein The unlocking structure (14) includes an unlocking bolt (141) and an unlocking button (143); the unlocking bolt (141) is arranged in a containing cavity in the base (1), and one end is connected with the unlocking button (143) through a connecting belt (144); one side of the unlocking bolt (141) is provided with a torsion spring (142); one end of the torsion spring (142) abuts against the unlocking bolt (141); the pull-rotation seat (2) is provided with unlocking grooves on both sides, which are used for cooperating with the unlocking bolt (141) to realize the locking function.

10. The child seat pull-rotary base apparatus according to claim 6, wherein; The pull-rotation seat (2) is provided with a reverse limiting assembly (23) at a position corresponding to the rotation center rail (13); the reverse limiting assembly (23) includes a reverse limiting button (233) and a reverse limiting bolt (232); the reverse limiting button (233) is slidably connected with the pull-rotation seat (2); the reverse limiting bolt (232) includes a limiting column (2321) and a limiting body (2322); the limiting column (2321) is arranged on both sides of the limiting body (2322) and abuts against one end of the reverse limiting button (233); the limiting body (2322) is provided with a containing groove (2323) at the upper end; the containing groove (2323) is provided with a spring; one end of the spring abuts against the bottom surface of the containing groove (2323), and the other end abuts against the pull-rotation seat (2); When the pull-rotation seat (2) is rotated to 90°-270°, the reverse limiting button (233) is actuated, the reverse limiting button (233) pushes the limiting column (2321), drives the limiting body (2322) to move downward, so that the limiting body (2322) abuts against one inner edge of the rotation center rail (13), to avoid the reverse rotation of the pull-rotation seat (2); on the contrary, the limiting body (2322) moves upward to be away from the rotation center rail (13), so that the reverse rotation limitation on the pull-rotation seat (2) is released.

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