Height adjusting mechanism and stroller

Abstract

The utility model discloses a height adjusting mechanism and a stroller, the height adjusting mechanism is used for the stroller, and the height adjusting mechanism comprises a side rod, a guide rail and a base. The guide rails are connected to the side rods. The base is suitable for being connected with a seat part of the child stroller, the base is slidably connected to the guide rail, and the base is configured to be capable of sliding relative to the guide rail so as to adjust the arrangement height of the seat part relative to the side rods. Wherein the side rod is provided with a first connecting structure, the end part of the guide rail is provided with a second connecting structure, and the second connecting structure is movably clamped with the first connecting structure. According to the scheme, the stability of connection between the ends of the guide rails and the side rods can be improved, deformation of the guide rails is effectively restrained, the seat part can smoothly slide along the guide rails, and the stability of seat height adjustment is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of children's strollers, and in particular to a height adjustment mechanism and a children's stroller. Background Art

[0002] A child stroller includes a seat and a height adjustment mechanism, which includes sidebars, guide rails, and a base. The guide rails are connected to the sidebars, and the base is used to connect the seat. The base can slide relative to the guide rails, thereby adjusting the seat's height relative to the sidebars to meet the needs of children in different riding scenarios. In the prior art, the middle portion of the guide rails is fixedly connected to the sidebars. However, when the base slides to the end of the guide rails, the end of the guide rails is affected by the load and deforms relative to the sidebars, preventing the seat from sliding smoothly along the guide rails. This means that the existing seat height adjustment system is relatively unstable. Utility Model Content

[0003] The main purpose of this application is to propose a height adjustment mechanism and a child stroller, aiming to solve the technical problem of poor stability in seat height adjustment.

[0004] To achieve the above objectives, a first embodiment of the present application provides a height adjustment mechanism for a child stroller, the height adjustment mechanism comprising:

[0005] sidebars;

[0006] a guide rail connected to the side rod;

[0007] a base adapted to be connected to the seat portion of the stroller, the base being slidably connected to the guide rails, the base being configured to slide relative to the guide rails to adjust the height of the seat portion relative to the side bars;

[0008] The side rod is provided with a first connecting structure, and the end of the guide rail is provided with a second connecting structure, and the second connecting structure is movably connected to the first connecting structure.

[0009] In the above embodiment, the height adjustment mechanism includes a side bar, a guide rail, and a base. The guide rail is connected to the side bar. The base is suitable for connecting to the seat portion of the stroller, and the base is slidably connected to the guide rail. The base is configured to slide relative to the guide rail to adjust the height of the seat portion relative to the side bar. In the prior art, the middle portion of the guide rail is fixedly connected to the side bar. However, when the base slides to the end of the guide rail, the end of the guide rail is affected by the load and deforms relative to the side bar, making it impossible for the seat portion to slide smoothly along the guide rail, resulting in poor stability in seat height adjustment. The side bar of this solution is provided with a first connecting structure, and the end of the guide rail is provided with a second connecting structure. The guide rail can be movably connected to the first connecting structure through the second connecting structure. Therefore, this solution facilitates the rapid assembly and connection of the guide rail and the side bar, and can improve the stability of the connection between the end of the guide rail and the side bar, effectively suppressing deformation of the guide rail, allowing the seat portion to slide smoothly along the guide rail, and ensuring the stability of the height adjustment mechanism in adjusting the seat height.

[0010] In some embodiments, the height adjustment mechanism includes a rider connection seat connected to the bottom end of the side rod, the rider connection seat is provided with the first connection structure, and the bottom end of the guide rail is provided with the second connection structure;

[0011] The first connecting structure includes a first protrusion facing the second connecting structure, the second connecting structure includes a first groove with a notch facing the first connecting structure, and the first protrusion passes through the first groove along the extension direction of the guide rail.

[0012] In the above-mentioned embodiment, the first protrusion of the driver's connector in this solution can be inserted into the first groove at the bottom end of the guide rail. This not only improves the stability of the guide rail's bottom end, but also allows the driver's connector to rotate normally relative to the bracket, and further improves the structural strength of the driver's connector. Furthermore, when the non-end portion of the guide rail is bolted or screwed to the side rod, this solution can achieve initial positioning and fixation through the first protrusion and the first groove, thereby improving overall assembly efficiency.

[0013] In some embodiments, along a thickness direction perpendicular to an extension direction of the guide rail, the first connecting structure includes a second protrusion connected to the first protrusion, and the second protrusion faces the second connecting structure;

[0014] Along a thickness direction perpendicular to an extending direction of the guide rail, the second connecting structure includes a second groove communicating with the first groove, and a notch of the second groove faces the first connecting structure;

[0015] Along the extending direction of the guide rail, the second protrusion passes through the second groove.

[0016] In the above embodiment, the first connecting structure of this scheme is provided with a second protrusion, and the second connecting structure is provided with a second groove. The second protrusion can pass through the second groove, which can further improve the stability of the assembly connection between the guide rail end and the side rod, effectively suppress the deformation of the guide rail, and ensure the stability of the height adjustment.

[0017] In some embodiments, the guide rail has a plurality of locking holes spaced apart from each other along its extension direction, and the height adjustment mechanism includes an adjusting member and a locking member connected to each other, wherein the adjusting member is configured to drive the locking member out of the locking hole so that the base can slide relative to the guide rail;

[0018] A clamping portion is provided on one side of the base away from the guide rail. The clamping portion includes a clamping hole. The clamping hole is suitable for the locking tongue of the seat part to pass through.

[0019] In the above-mentioned embodiment, the guide rail of this solution is provided with multiple locking holes, allowing the seat to be arranged at multiple heights to meet the needs of various scenarios. By driving the locking member out of the locking hole by the adjusting member, the base can slide normally, making the height adjustment of the seat convenient and quick. The locking tongue of this solution passes through the engaging hole of the base, which ensures the stability of the assembly connection between the base and the seat.

[0020] In some embodiments, a guide groove is provided on a side of the base facing the guide rail, the guide rail passes through the guide groove, the base includes a connecting hole communicating with the guide groove, and the side rod and the guide rail are both provided with the connecting hole;

[0021] A first flange is provided at the bottom end of the guide groove. The first flange protrudes from the bottom wall of the guide groove in a direction away from the clamping portion and extends along the extension direction of the guide rail.

[0022] In the above-mentioned embodiment, this solution further enhances the stability of the connection between the base, sidebars, and guide rails, ensuring the overall structural stability of the stroller. The base of this solution is provided with a first flange, which enhances its structural strength and prevents deformation. Furthermore, the first flange reduces the contact area between the guide rail and the guide slot, preventing deformation of the guide rail that could cause the guide slot to slip and become stuck, thereby ensuring the stability of the height adjustment mechanism for seat height adjustment.

[0023] In some embodiments, a second flange is provided at the bottom end of the guide groove, and the second flange is spaced apart from the first flange along the width direction of the guide groove. The second flange protrudes from the bottom wall of the guide groove in a direction away from the clamping portion and extends along the extension direction of the guide rail.

[0024] In the above embodiment, the base of this solution is provided with a second flange, which can further enhance the structural strength of the base, effectively suppress deformation of the base, enhance the stability of the base sliding relative to the guide rail, and thereby ensure the stability of the height adjustment mechanism in height adjustment.

[0025] In some embodiments, the height adjustment mechanism further includes a fixing seat, the fixing seat being disposed in the base and connected to the base, the locking member including a first pivot axis and a second pivot axis that are separated from each other, the first pivot axis being connected to the adjustment member, and the second pivot axis being connected to the fixing seat;

[0026] In which, the first axis of the first pivot shaft is parallel to the second axis of the second pivot shaft and is arranged at intervals, and the adjusting member is configured to enable the locking member to rotate around the first axis or the second axis when moving along the extension direction of the guide member, thereby causing the locking member to disengage from the locking hole.

[0027] In the above embodiment, the adjustment operation of the locking member in this solution is convenient and quick, and can ensure the smoothness and stability of the height adjustment operation.

[0028] In some embodiments, the height adjustment mechanism further includes a connecting member, a first elastic member, and a second elastic member, wherein the connecting member includes a first end and a second end that are opposite to each other along its extension direction;

[0029] One end of the first elastic member is connected to the adjusting member, and the other end is connected to the side of the first end facing the second end; one end of the second elastic member is connected to the fixing seat, and the other end is connected to the side of the second end facing the first end.

[0030] In the above embodiment, this solution connects the adjusting member and the locking member via a connecting member, which increases the distance between the adjusting member and the locking member, allowing the adjusting member to be positioned higher for easier operation. The first and second elastic members provide elastic restoring force for the movement of the connecting member and the locking member, ensuring that the locking member has the locking force required for normal locking through the locking hole, effectively preventing loosening and ensuring the stability of the connection between the base and the guide rail.

[0031] The second embodiment of the present invention provides a child stroller, comprising the height adjustment mechanism described in the above embodiment, and further comprising the seat portion and a locking portion, wherein the locking portion can connect the seat portion and the base.

[0032] In the above embodiment, the stroller of this solution can improve the stability of the connection between the guide rail end and the side rod, effectively suppress the deformation of the guide rail, so that the seat can slide smoothly along the guide rail, and ensure the stability of the height adjustment mechanism in adjusting the seat height.

[0033] In some embodiments, the locking portion includes a mounting seat, the mounting seat has a locking tongue and an operating member connected to each other, the base includes a snap-in hole arranged toward the mounting seat, the locking tongue passes through the snap-in hole, and the operating member is configured to drive the locking tongue out of the snap-in hole.

[0034] In the above embodiment, the seat portion and the base can be separated quickly and easily, and the locking tongue is provided with a snap-in hole, which can also ensure the stability of the assembly connection between the seat portion and the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without any creative work.

[0036] Figure 1 Schematic diagram of the structure of a child stroller in one embodiment of the present application, showing a height adjustment mechanism, a seat portion, a locking portion, and a frame portion;

[0037] Figure 2 Schematic diagram of a child stroller in one embodiment of the present application, wherein the seat portion is separated from the base;

[0038] Figure 3 for Figure 2 A partial enlarged view of the center A, showing the locking portion and the engaging portion;

[0039] Figure 4 A schematic diagram of a height adjustment mechanism in one embodiment of the present application; wherein the guide rail is connected to the side rod, and the base is slidably connected to the guide rail;

[0040] Figure 5 This is an exploded schematic diagram of a height adjustment mechanism in one embodiment of the present application, showing a base, guide rails, and side bars;

[0041] Figure 6 for Figure 5 A partial enlarged view of point B in the middle, showing the second connecting structure and the rider connecting seat;

[0042] Figure 7 This is an exploded schematic diagram of a height adjustment mechanism in one embodiment of the present application, wherein the operating portion and the connecting hole are shown;

[0043] Figure 8 for Figure 7 A partial enlarged view of the center C, showing the first connecting structure and the rider's connecting seat;

[0044] Figure 9 This is an exploded schematic diagram of a height adjustment mechanism in one embodiment of the present application, showing an adjustment member, a connecting member, a locking member, and a fixing seat;

[0045] Figure 10 2. This is a cross-sectional view of a height adjustment mechanism in one embodiment of the present application; wherein the locking member is provided with a locking hole, and the first flange and the second flange are shown;

[0046] Figure 11 This is a cross-sectional view of a height adjustment mechanism in one embodiment of the present application; wherein the locking member is provided with a locking hole.

[0047] Description of Figure Numbers:

[0048] Stroller 1;

[0049] Height adjustment mechanism 10;

[0050] Side bar 100; first connecting structure 110; first protrusion 111; second protrusion 112;

[0051] Guide rail 200; second connecting structure 210; first groove 211; second groove 212; locking hole 213; transition slope 2131;

[0052] Base 300; snap-fit ​​portion 310; snap-fit ​​hole 311; guide groove 312; groove bottom wall 3121; connecting hole 313; first flange 314; second flange 315; operating portion 316; guide hole 317;

[0053] Rider connection seat 400; clamping groove 410;

[0054] Adjusting member 500; Pushing portion 510;

[0055] Locking member 600; first pivot axis 610; second pivot axis 620;

[0056] Fixed seat 700;

[0057] Connecting member 800; first end 810; second end 820; sliding sleeve 830;

[0058] First elastic member 910; second elastic member 920;

[0059] a seat portion 20;

[0060] Locking portion 30 ; mounting seat 301 ; locking tongue 302 ; operating member 303 .

[0061] Frame portion 40; front bracket 401; rear bracket 402; wheel body 403; handle assembly 404.

[0062] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0064] A child stroller includes a seat and a height adjustment mechanism, which includes sidebars, guide rails, and a base. The guide rails are connected to the sidebars, and the base is used to connect the seat. The base can slide relative to the guide rails, thereby adjusting the seat's height relative to the sidebars to meet the needs of children in different riding scenarios. In the prior art, the middle portion of the guide rails is fixedly connected to the sidebars. However, when the base slides to the end of the guide rails, the end of the guide rails is affected by the load and deforms relative to the sidebars, preventing the seat from sliding smoothly along the guide rails. This means that the existing seat height adjustment system is relatively unstable.

[0065] In view of this, the first embodiment of the present application proposes a height adjustment mechanism 10, which is used for the child stroller 1 and can ensure the stability of the height adjustment of the seat part 20. Figure 1 and Figure 2 It can be understood that the stroller 1 includes a seat portion 20 and a frame portion. The frame portion may include a front bracket 401, a rear bracket 402, and a push handle assembly 404. It should be noted that the bottom ends of the front bracket 401 and the rear bracket 402 may be provided with wheels 403 to achieve the movement of the stroller. Figures 1 to 11 The height adjustment mechanism 10 according to an embodiment of the present application is introduced. Specifically, the height adjustment mechanism 10 includes a side bar 100, a guide rail 200, and a base 300.

[0066] Reference Figure 1 , Figure 4 and Figure 5 The side bar 100 is used to fix the guide rail 200, and the guide rail 200 is used to allow the base 300 to slide. It is understood that the side bar 100 can be part of the push handle assembly 404, or it can be a rod connected to the push handle assembly 404. Some embodiments of this application are described as side bars 100 being part of the push handle assembly 404. It should be noted that the side bar 100 can connect the front bracket 401 and the rear bracket 402.

[0067] Reference Figures 4 to 6, the guide rail 200 is connected to the side bar 100. The specific connection setting of the non-end portion of the guide rail 200 and the side bar 100 is introduced below. The non-end portion of the guide rail 200 can be connected to the side bar 100 to achieve preliminary fixation of the guide rail 200. Specifically, in some embodiments, the non-end portion of the guide rail 200 can be screwed to the side bar 100. In other embodiments, the non-end portion of the guide rail 200 can be bolted to the side bar 100. In other embodiments, the non-end portion of the guide rail 200 can be riveted to the side bar 100. The specific connection method of the non-end portion of the guide rail 200 and the side bar 100 can be determined according to actual conditions. Some embodiments of the present application are described by taking the bolt connection of the non-end portion of the guide rail 200 and the side bar 100 as an example.

[0068] Reference Figures 4 to 8 , the specific connection arrangement between the end of the guide rail 200 and the side rod 100 is introduced below. The side rod 100 is provided with a first connection structure 110, and the end of the guide rail 200 is provided with a second connection structure 210. The second connection structure 210 may have the same structure as the first connection structure 110, or may be different. Some embodiments of the present application are described by taking the second connection structure 210 being different from the first connection structure 110 as an example. The second connection structure 210 is movably connected to the first connection structure 110. Specifically, when the side rod 100 and the end of the guide rail 200 need to be assembled and connected, the second connection structure 210 can be connected to the first connection structure 110; when the side rod 100 and the end of the guide rail 200 need to be disassembled, the second connection structure 210 can be separated from the first connection structure 110.

[0069] Reference Figures 1 to 3 The base 300 can be connected to the seat portion 20 of the stroller 1. In some embodiments, the base 300 can be detachably connected to the seat portion 20. In other embodiments, the base 300 can also be integrally connected to the seat portion 20. Some embodiments of the present application are described using the example of a detachable connection between the base 300 and the seat portion 20.

[0070] Reference Figure 4 and Figure 5 The base 300 is slidably connected to the guide rail 200. Since the base 300 can be connected to the seat portion 20, the base 300 can drive the seat portion 20 to slide relative to the guide rail 200 and thus adjust the height of the seat portion 20 relative to the side rod 100. Figure 5 The base 300 can slide relative to the guide rail 200 from the upper left to the lower right, thereby adjusting the height of the seat portion 20 relative to the side rod 100 to meet the riding needs of children in different scenarios.

[0071] In the technical solution of the present application, the height adjustment mechanism 10 includes a sidebar 100, a guide rail 200, and a base 300. The guide rail 200 is connected to the sidebar 100. The base 300 is suitable for connecting to the seat portion 20 of the stroller 1. The base 300 is slidably connected to the guide rail 200 and is configured to slide relative to the guide rail 200 to adjust the height of the seat portion 20 relative to the sidebar 100. In the prior art, the middle portion of the guide rail is fixedly connected to the sidebar. However, when the base slides to the end of the guide rail, the end of the guide rail is affected by the load and deforms relative to the sidebar, preventing the seat portion from sliding smoothly along the guide rail, resulting in poor stability in seat height adjustment. In this solution, the sidebar 100 is provided with a first connecting structure 110, and the end of the guide rail 200 is provided with a second connecting structure 210. The guide rail 200 is movably connected to the first connecting structure 110 via the second connecting structure 210. Therefore, this solution facilitates the quick assembly and connection between the guide rail 200 and the side rod 100, and can improve the stability of the connection between the end of the guide rail 200 and the side rod 100, effectively suppressing the deformation of the guide rail 200, so that the seat part 20 can slide smoothly along the guide rail 200, and ensure the stability of the height adjustment mechanism 10 in adjusting the height of the seat.

[0072] Reference Figures 4 to 8 The specific locations of the first connecting structure 110 and the second connecting structure 210 are described below. In some embodiments, the height adjustment mechanism includes a driver connection seat 400, which can be connected to the bottom end of the sidebar 100. It will be understood that the push handle assembly 404 can be connected to the front bracket 401 via the driver connection seat 400. The driver connection seat 400 can rotate relative to the front bracket 401 to achieve foldable storage of the bicycle body. It should be noted that the end of the driver connection seat 400 facing the front bracket 401 is required to be provided with a clamping groove 410 to facilitate rotational connection to the front bracket 401.

[0073] Reference Figure 4 The driver connection seat 400 can be provided with a first connection structure 110, and the bottom end of the guide rail 200 can be provided with a second connection structure 210, that is, the bottom end of the guide rail 200 can be connected to the driver connection seat 400, thereby improving the stability of the assembly connection between the end of the guide rail 200 and the driver connection seat 400.

[0074] Reference Figure 6 and Figure 8, the specific structures of the first connecting structure 110 and the second connecting structure 210 are introduced below. In some embodiments, the first connecting structure 110 includes a first protrusion 111 facing the second connecting structure 210, and the second connecting structure 210 includes a first groove 211 with a notch facing the first connecting structure 110, and the first protrusion 111 can be adapted to be arranged in the first groove 211. Along the extension direction of the guide rail 200, the first protrusion 111 passes through the first groove 211. In other embodiments, the first connecting structure 110 includes a first groove 211 facing the second connecting structure 210, and the second connecting structure 210 includes a first protrusion 111 with a notch facing the first connecting structure 110. Along the extension direction of the guide rail 200, the first protrusion 111 passes through the first groove 211. In other embodiments, the first connection structure 110 can be provided with a first protrusion 111 and a first groove 211 at the same time, and the second connection structure 210 can be provided with a first groove 211 and a first protrusion 111 at the same time. Along the extension direction of the guide rail 200, each first protrusion 111 is respectively provided with each first groove 211.

[0075] When bolts are used to connect the bottom end of the guide rail to the driver's dock, the bolts must be passed through the clamping groove of the driver's dock. This not only interferes with the rotation of the driver's dock relative to the bracket, but also reduces the structural strength of the driver's dock. In this solution, the first protrusion 111 of the driver's dock 400 can be inserted into the first groove 211 at the bottom end of the guide rail 200. This not only improves the stability of the bottom end of the guide rail 200, but also allows the driver's dock 400 to rotate normally relative to the bracket, and further improves the structural strength of the driver's dock 400. Furthermore, when the non-end of the guide rail 200 is bolted or screwed to the sidebar 100, this solution can achieve initial positioning and fixation through the first protrusion 111 and the first groove 211, improving overall assembly efficiency.

[0076] Reference Figure 8 , the following describes the specific configuration of the first connecting structure 110 of some embodiments, along the thickness direction perpendicular to the extension direction of the guide rail 200, refer to Figure 8 In the vertical direction, that is, in the vertical direction, the first connecting structure 110 includes a second protrusion 112. It should be noted that the second protrusion 112 can be connected to the first protrusion 111, that is, the structural strength of both can be increased simultaneously. The second protrusion 112 is arranged toward the second connecting structure 210. In some embodiments, the second protrusion 112 can have the same structure as the first protrusion 111. In other embodiments, the structure of the second protrusion 112 can be different from that of the first protrusion 111. Some embodiments of the present application are described by taking the example of the second protrusion 112 having a different structure from the first protrusion 111 as an example.

[0077] Reference Figure 6, the following describes the specific arrangement of the second connecting structure 210 of some embodiments, along the thickness direction perpendicular to the extension direction of the guide rail 200, with reference to Figure 6 In the orientation, i.e. along the left-right direction, the second connecting structure 210 comprises a second groove 212, which is in communication with the first groove 211. The slot of the second groove 212 is arranged towards the first connecting structure 110. It should be noted that in some embodiments, the structure of the second groove 212 can be the same as that of the first groove 211. In other embodiments, the slot size of the second groove 212 can be greater than that of the first groove 211. In other embodiments, the slot size of the second groove 212 can be smaller than that of the first groove 211. Some embodiments of the present application are described by taking the slot size of the second groove 212 being greater than that of the first groove 211 as an example. It can be understood that the second protrusion 112 can be arranged to fit the second groove 212. Along the extension direction of the guide rail 200, the second protrusion 112 can pass through the second groove 212.

[0078] It should be noted that in other embodiments, the first connecting structure 110 can comprise the second groove 212, and the second connecting structure 210 can comprise the second protrusion 112. In other embodiments, the first connecting structure 110 can be provided with both the second groove 212 and the second protrusion 112, and the second connecting structure 210 can be provided with both the second protrusion 112 and the second groove 212. The specific arrangement of the first connecting structure 110 and the second connecting structure 210 can be determined according to actual conditions, and some embodiments of the present application are described by taking the first connecting structure 110 comprising the second protrusion 112 and the second connecting structure 210 comprising the second groove 212 as an example.

[0079] The first connecting structure 110 of the present scheme is provided with the second protrusion 112, and the second connecting structure 210 is provided with the second groove 212, and the second protrusion 112 can pass through the second groove 212, i.e. the stability of the assembly connection of the end of the guide rail 200 and the side rod 100 can be further improved, the deformation of the guide rail 200 can be effectively inhibited, and the stability of height adjustment can be ensured. Moreover, the slot sizes of the second groove 212 and the first groove 211 are different, which can prevent the guide rail 200 from being installed in reverse, ensure the assembly connection precision of the height adjustment assembly, and also enable the rider connecting seat 400 to rotate normally to realize folding and ensure the structural strength of the rider connecting seat 400.

[0080] Referring to Figures 4 to 8 , the following describes the specific locking arrangement of the base 300 on the guide rail 200. In some embodiments, the guide rail 200 is provided with a plurality of locking holes 213 along its extension direction, and each locking hole 213 is arranged spaced apart from each other. The height adjustment mechanism 10 comprises an adjustment member 500 and a locking member 600 connected to each other. Referring to Figure 4The adjusting member 500 can be arranged on the upper side of the locking member 600. It should be noted that the adjusting member 500 can drive the locking member 600 out of the locking hole 213, so that the base 300 can slide relative to the guide rail 200 to achieve the height adjustment of the seat part 20. The guide rail 200 of this solution is provided with a plurality of locking holes 213, so that the seat part 20 has a plurality of height arrangement positions, which can meet the needs of various scenarios. By driving the locking member 600 out of the locking hole 213 by the adjusting member 500, the base 300 can slide normally, making the height adjustment operation of the seat part 20 convenient and quick.

[0081] Reference Figure 3 and Figure 4 , the following describes the specific connection arrangement of the base 300 and the seat portion 20. Figure 4 The base 300 has a snap-on portion 310 on the side facing away from the guide rail 200, specifically on the left side of the base 300. The snap-on portion 310 includes a snap-on hole 311, into which the locking tongue 302 fits. The snap-on hole 311 is designed to receive the locking tongue 302 of the seat 20. This embodiment of the invention ensures the stability of the assembled connection between the base 300 and the seat 20.

[0082] Reference Figure 4 and Figure 5 , the specific connection arrangement between the base 300 and the guide rail 200 is introduced below. In some embodiments, a guide groove 312 is provided on the side of the base 300 facing the guide rail 200, and the guide rail 200 can be provided with the guide groove 312. It can be understood that the guide rail 200 can limit the guide groove 312 to ensure the stability of the base 300 sliding relative to the guide rail 200. The base 300 includes a connecting hole 313 connected to the guide groove 312, and the side rod 100 and the guide rail 200 can both be provided with the connecting hole 313. It should be noted that the base 300 can be provided with an operating part 316, and relevant personnel can drive the base 300 to slide relative to the guide rail 200 through the operating part 316, and the operating part 316 can define the connecting hole 313. This solution can further improve the stability of the connection between the base 300 and the side rod 100 and the guide rail 200, and ensure the stability of the overall structure.

[0083] Reference Figure 9 and Figure 10, a first flange 314 is provided at the bottom end of the guide groove 312, and the first flange 314 can extend along the extension direction of the guide rail 200. It should be noted that the first flange 314 can protrude from the bottom wall 3121 of the guide groove 312 in a direction away from the clamping portion 310, and its specific protruding length can be determined according to actual conditions. The base 300 of this solution is provided with a first flange 314, which can enhance the structural strength of the base 300 and prevent the base 300 from being deformed. In addition, the first flange 314 can reduce the contact area between the guide rail 200 and the guide groove 312, prevent the guide rail 200 from being deformed and causing the guide groove 312 to slide and get stuck, thereby ensuring the stability of the height adjustment mechanism 10 in adjusting the seat height.

[0084] Reference Figure 9 and Figure 10 , the specific connection arrangement between the base 300 and the guide rail 200 is introduced below. In some embodiments, a second flange 315 is provided at the bottom end of the guide groove 312. The structure of the second flange 315 may be the same as or different from that of the first flange 314, depending on the actual situation. It should be noted that the second flange 315 may be spaced apart from the first flange 314 along the width direction of the guide groove 312. The second flange 315 may extend along the extension direction of the guide rail 200. The second flange 315 can protrude from the bottom wall 3121 of the guide groove 312 in a direction away from the clamping portion 310, and the protruding length of the second flange 315 may be the same as that of the first flange 314. In other embodiments, the base 300 may also be provided with a third flange, and the specific number of the flanges may depend on the actual situation. The base 300 of this solution is provided with a second flange 315, which can further enhance the structural strength of the base 300, effectively suppress deformation of the base 300, enhance the stability of the base 300 sliding relative to the guide rail 200, and thereby ensure the stability of the height adjustment mechanism in height adjustment.

[0085] Reference Figures 9 to 11 The following describes the specific arrangement for disengaging the locking member 600 from the locking hole 213. In some embodiments, the height adjustment mechanism 10 further includes a fixing base 700, which can be disposed within and connected to the base 300. The locking member 600 includes a first pivot axis 610 and a second pivot axis 620, which are arranged in opposite directions from each other. The first pivot axis 610 can be connected to the adjusting member 500, and the second pivot axis 620 can be connected to the fixing base 700.

[0086] Reference Figure 9The first axis of the first pivot shaft 610 and the second axis of the second pivot shaft 620 are parallel and spaced apart, that is, the first pivot shaft 610 and the second pivot shaft 620 are eccentrically arranged. In addition, when the adjusting member 500 moves along the extension direction of the guide member, it can cause the locking member 600 to rotate around the first axis or the second axis, thereby causing the locking member 600 to disengage from the locking hole 213. Figure 10 When the adjusting member 500 moves from the lower left to the upper right, it can drive the locking member 600 to rotate and then escape from the locking hole 213. In this solution, the adjustment operation of the locking member 600 is convenient and fast, and can ensure the smoothness and stability of the height adjustment operation.

[0087] Reference Figure 9 It should be noted that in other embodiments, the base 300 may be provided with a guide hole 317, that is, the adjusting member 500 may pass through the guide hole 317 and then penetrate into or out of the locking hole 213, and the guide hole 317 may be adapted to the arrangement of the adjusting member 500 to achieve corresponding locking and unlocking operations. Figure 11 In other embodiments, the locking hole 213 may be provided with a transition slope 2131, that is, the locking hole 213 can be locked in one direction. Specifically, when the base 300 moves upward along the guide rail 200 to increase its height, the adjustment member 500 does not need to be operated. When the base 300 moves downward along the guide rail 200 to decrease its height, the adjustment member 500 can be operated to disengage the locking member 600 from the locking hole 213.

[0088] Reference Figure 9 In some embodiments, the height adjustment mechanism 10 further includes a connecting member 800, a first elastic member 910, and a second elastic member 920. The connecting member 800 includes a first end 810 and a second end 820 that are separated from each other along its extension direction. Figure 9 In the embodiment of the present invention, the upper end of the connecting member 800 may be the first end 810 , and the lower end of the connecting member 800 may be the second end 820 .

[0089] Reference Figure 9 One end of the first elastic member 910 is connected to the adjusting member 500, and the other end is connected to the side of the first end 810 facing the second end 820. Furthermore, the connecting member 800 can be provided with a sliding sleeve 830, which can be sleeved over the first end 810 and the first elastic member 910 to facilitate the assembly and connection of the first elastic member 910 and the first end 810. It should be noted that the adjusting member 500 can be provided with a pushing portion 510, and the first elastic member 910 can be connected to the pushing portion 510. The second elastic member 920 has one end connected to the fixing seat 700, and the other end connected to the side of the second end 820 facing the first end 810.

[0090] This solution connects the adjusting member 500 and the locking member 600 via the connecting member 800, which increases the distance between the adjusting member 500 and the locking member 600. This allows the adjusting member 500 to be positioned higher for easier operation. The first elastic member 910 and the second elastic member 920 provide elastic restoring force for the movement of the connecting member 800 and the locking member 600, ensuring that the locking member 600 has the locking force required for normal locking through the locking hole 213, effectively preventing loosening and ensuring the stability of the connection between the base 300 and the guide rail 200.

[0091] Reference Figure 1 and Figure 2 The second embodiment of the present invention provides a child stroller 1, which includes the height adjustment mechanism 10 of the above embodiment. It can be understood that the child stroller 1 can be provided with two height adjustment mechanisms 10, so as to synchronously adjust the arrangement heights of both sides of the seat to ensure the stability of the height adjustment. The child stroller 1 also includes a seat portion 20 and a locking portion 30, and the locking portion 30 can connect the seat portion 20 and the base 300. The child stroller 1 of this solution can improve the stability of the connection between the end of the guide rail 200 and the side rod 100, effectively suppress the deformation of the guide rail 200, and enable the seat portion 20 to slide smoothly along the guide rail 200, thereby ensuring the stability of the height adjustment mechanism 10 in adjusting the seat height.

[0092] Reference Figure 3 , the specific structure of the locking portion 30 of some embodiments is introduced below. In some embodiments, the locking portion 30 includes a mounting seat 301, and the mounting seat 301 has a locking tongue 302 and an operating member 303 that are interconnected. The base 300 includes a snap-in hole 311 arranged toward the mounting seat 301, and the locking tongue 302 can be adapted to be arranged in the snap-in hole 311. The locking tongue 302 can pass through the snap-in hole 311, and the operating member 303 can drive the locking tongue 302 to escape from the snap-in hole 311. Specifically, by pressing the operating member 303, the locking tongue 302 can be released from the snap-in hole 311, thereby realizing the separation operation of the seat portion 20 and the base 300. The separation operation of the seat portion 20 and the base 300 of this solution is convenient and quick, and by passing the locking tongue 302 through the snap-in hole 311, the stability of the assembly connection between the seat portion 20 and the base 300 can also be guaranteed.

[0093] It should be noted that if directional indications (such as up, down, left, right, front, back, etc.) are involved in the embodiments of this application, such directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. When a directional reference is introduced in a specific embodiment, unless the direction is specifically limited to unidirectional, the direction can be unidirectional or bidirectional (two parallel and opposite directions). Whether it is unidirectional or bidirectional is based on the ability of ordinary technicians in this field to implement it. When the directional reference is bidirectional, it should be considered that two different embodiments are introduced at the same time.

[0094] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or", "and / or" or "and / or" appear in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0095] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A height adjustment mechanism for a child stroller, characterized in that: The height adjustment mechanism comprises: sidebars; a guide rail connected to the side rod; a base adapted to be connected to the seat portion of the stroller, the base being slidably connected to the guide rails, the base being configured to slide relative to the guide rails to adjust the height of the seat portion relative to the side bars; The side rod is provided with a first connecting structure, and the end of the guide rail is provided with a second connecting structure, and the second connecting structure is movably connected to the first connecting structure.

2. The height adjustment mechanism according to claim 1, wherein: The height adjustment mechanism includes a rider connection seat connected to the bottom end of the side rod, the rider connection seat is provided with the first connection structure, and the bottom end of the guide rail is provided with the second connection structure; The first connecting structure includes a first protrusion facing the second connecting structure, the second connecting structure includes a first groove with a notch facing the first connecting structure, and the first protrusion passes through the first groove along the extension direction of the guide rail.

3. The height adjustment mechanism according to claim 2, wherein: Along a thickness direction perpendicular to an extending direction of the guide rail, the first connecting structure includes a second protrusion connected to the first protrusion, and the second protrusion faces the second connecting structure; Along a thickness direction perpendicular to an extending direction of the guide rail, the second connecting structure includes a second groove communicating with the first groove, and a notch of the second groove faces the first connecting structure; Along the extending direction of the guide rail, the second protrusion passes through the second groove.

4. The height adjustment mechanism according to claim 1, wherein: The guide rail has a plurality of locking holes spaced apart from each other along its extension direction, the height adjustment mechanism includes an adjusting member and a locking member connected to each other, the adjusting member being configured to drive the locking member out of the locking hole so that the base can slide relative to the guide rail; A clamping portion is provided on one side of the base away from the guide rail. The clamping portion includes a clamping hole. The clamping hole is suitable for the locking tongue of the seat part to pass through.

5. The height adjustment mechanism according to claim 4, wherein: A guide groove is provided on one side of the base facing the guide rail, the guide rail passes through the guide groove, the base includes a connecting hole communicating with the guide groove, and the side rod and the guide rail are both passed through the connecting hole; A first flange is provided at the bottom end of the guide groove. The first flange protrudes from the bottom wall of the guide groove in a direction away from the clamping portion and extends along the extension direction of the guide rail.

6. The height adjustment mechanism according to claim 5, wherein: A second flange is provided at the bottom end of the guide groove, and the second flange is spaced apart from the first flange along the width direction of the guide groove. The second flange protrudes from the bottom wall of the guide groove in a direction away from the clamping portion and extends along the extension direction of the guide rail.

7. The height adjustment mechanism according to claim 4, wherein: The height adjustment mechanism further includes a fixing seat, the fixing seat being disposed in the base and connected to the base, the locking member including a first pivot axis and a second pivot axis that are separated from each other, the first pivot axis being connected to the adjustment member, and the second pivot axis being connected to the fixing seat; In which, the first axis of the first pivot shaft is parallel to the second axis of the second pivot shaft and is arranged at intervals, and the adjusting member is configured to enable the locking member to rotate around the first axis or the second axis when moving along the extension direction of the guide member, thereby disengaging the locking member from the locking hole.

8. The height adjustment mechanism according to claim 7, wherein: The height adjustment mechanism further includes a connecting member, a first elastic member, and a second elastic member, wherein the connecting member includes a first end and a second end that are away from each other along its extension direction; One end of the first elastic member is connected to the adjusting member, and the other end is connected to the side of the first end facing the second end; one end of the second elastic member is connected to the fixing seat, and the other end is connected to the side of the second end facing the first end.

9. A baby stroller, characterized in that: The height adjustment mechanism comprises the height adjustment mechanism according to any one of claims 1 to 8, further comprising the seat portion and a locking portion, wherein the locking portion is capable of connecting the seat portion and the base.

10. The stroller according to claim 9, wherein: The locking portion includes a mounting seat having a locking tongue and an operating member connected to each other, the base includes a snap-in hole arranged toward the mounting seat, the locking tongue passes through the snap-in hole, and the operating member is configured to be able to drive the locking tongue out of the snap-in hole.

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