A stroller seat

Abstract

The utility model relates to a baby carriage technical field, specifically a baby carriage seat, including backrest support, the backrest support includes main frame and support frame, the support frame is located main frame rear side, the support frame includes support frame main part and at least two connecting arms, the support frame is connected main frame through at least one connecting arm, be equipped with elastic buffer structure on the connecting arm. The utility model provides a baby carriage seat, provides rigid support for baby through support frame, can effectively avoid the situation that baby is sideways and falls down when sitting and leaning because of cloth collapse deformation, simultaneously, provides elastic buffer for baby through the elastic buffer structure on the connecting arm of support frame, improves the sitting and leaning comfort degree.

Description

Technical Field

[0001] This utility model relates to the field of children's vehicle technology, specifically a children's vehicle seat. Background Technology

[0002] Existing stroller seats typically include a backrest frame covered with soft fabric padding to provide basic support for an infant's back, head, and waist. However, this type of stroller seat, which relies solely on the simple combination of soft fabric and frame, lacks rigid support for infants. When an infant sits on it, the fabric is prone to collapsing and deforming, causing the infant's back, waist, or head to tilt to one side. Utility Model Content

[0003] The purpose of this utility model is to provide a stroller seat that solves the problem that existing stroller seats, which rely on a simple combination of flexible fabric and frame, lack rigid support, causing infants and toddlers to easily tilt to the side due to fabric collapse and deformation when sitting on them.

[0004] To solve the above problems, the present invention provides the following technical solution: A stroller seat includes a backrest support, the backrest support includes a main frame and a support frame, the support frame is disposed on the rear side of the main frame, the support frame includes a support frame body and at least two connecting arms, the support frame is connected to the main frame through at least one of the connecting arms, and the support frame body or the connecting arms are provided with an elastic cushioning structure.

[0005] As described above, a stroller seat has a plurality of first buffer grooves and a plurality of second buffer grooves on the connecting arm. The plurality of first buffer grooves are located on the front side of the connecting arm and are spaced apart along the length of the connecting arm. The plurality of second buffer grooves are located on the rear side of the connecting arm and are spaced apart along the length of the connecting arm, so as to form the elastic buffer structure.

[0006] As described above, a child car seat has a second buffer groove between every two adjacent first buffer grooves, and a first buffer groove between every two adjacent second buffer grooves.

[0007] In the stroller seat described above, the depth of the second buffer groove is greater than the depth of the first buffer groove.

[0008] As described above, the support frame of a stroller seat includes three connecting arms, one of which is connected to the upper end of the main frame, one of which is connected to the lower left end of the main frame, and one of which is connected to the lower right end of the main frame.

[0009] In the stroller seat described above, the connecting arm is detachably connected to the main frame.

[0010] As described above, in a stroller seat, the support frame body and the connecting arm are integrally formed; the support frame body and / or the connecting arm are provided with a first buffer groove, the depth direction of the first buffer groove intersects with the length direction of the corresponding support frame body or the connecting arm to form the elastic buffer structure.

[0011] In a stroller seat as described above, the support frame body and / or the connecting arm are made of elastic material to form the elastic cushioning structure.

[0012] The stroller seat described above further includes a headrest and / or a lumbar support, wherein the headrest and / or the lumbar support are provided on the front side of the support frame, and / or the headrest and / or the lumbar support are located on the rear side of the main frame.

[0013] In one type of stroller seat as described above, the headrest is movable up and down on the support frame.

[0014] As described above, a child car seat has a sliding locking mechanism and an unlocking mechanism between the headrest and the support frame. The sliding locking mechanism connects the headrest and the support frame to lock the headrest to the support frame, and the unlocking mechanism connects to the sliding locking mechanism to drive the sliding locking mechanism to unlock the headrest from the support frame.

[0015] As described above, a child stroller seat has a sliding groove on the support frame. The sliding locking mechanism includes a slide seat, a locking seat, a pressure block, and a spring. The slide seat is slidably disposed on the sliding groove and connected to the headrest. The slide seat has a locking mounting groove and an unlocking mounting groove communicating with the locking mounting groove. The locking seat is movably disposed in the locking mounting groove and can move along the locking mounting groove towards or away from the support frame. The pressure block is connected to the end of the locking seat near the support frame. The spring abuts against the end of the locking seat near the headrest. The unlocking mechanism is movably disposed in the unlocking mounting groove and can move along the unlocking mounting groove towards or away from the locking seat. When the unlocking mechanism moves toward the locking seat, it drives the locking seat to move the pressure block away from the support frame, so as to release the head from the support frame. When the unlocking mechanism moves away from the locking seat, the spring drives the locking seat to move the pressure block closer to the support frame, so as to lock the head against the support frame.

[0016] In the stroller seat described above, the lumbar support is movable forward and backward on the support frame.

[0017] The stroller seat described above further includes a seat bracket, wherein the backrest bracket is connected to the seat bracket, and the backrest bracket is connected to the seat bracket via the main frame and / or the connecting arm.

[0018] This utility model also provides a stroller seat, including a backrest support. The backrest support includes a main frame and a support frame. The support frame is located on the rear side of the main frame. The support frame includes a support frame body and at least two connecting arms. The support frame is connected to the main frame through at least one of the connecting arms. The front side of the support frame is provided with a headrest and / or a lumbar support.

[0019] As described above, a child car seat has an elastic cushioning mechanism between the support frame and the headrest and / or the lumbar support.

[0020] Compared with the prior art, the present invention has the following advantages: 1. The stroller seat provided by this utility model provides rigid support for infants and toddlers through the support frame, which can effectively prevent infants and toddlers from tilting to the side due to the collapse and deformation of the fabric when sitting. At the same time, the elastic buffer structure on the connecting arm of the support frame provides elastic buffer for infants and toddlers, improving sitting comfort.

[0021] 2. The stroller seat provided by this utility model provides rigid support for infants and toddlers through a support frame, which can effectively prevent infants and toddlers from tilting to the side due to the collapse and deformation of the fabric when sitting. At the same time, a headrest and / or lumbar support are set on the support frame, making full use of the material and providing more comfortable and effective support for the head and / or waist of infants and toddlers. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of a stroller seat according to Embodiment 1 of this utility model.

[0024] Figure 2 This is a schematic diagram of the backrest support of a stroller seat according to Embodiment 1 of this utility model.

[0025] Figure 3 This is an exploded view of a backrest support for a stroller seat according to Embodiment 1 of this utility model.

[0026] Figure 4This is a schematic diagram of the connection structure between the headrest, sliding locking mechanism, and unlocking mechanism of a child stroller seat according to Embodiment 1 or Embodiment 2 of this utility model.

[0027] Figure 5 This is a structural schematic diagram of a children's car seat according to Embodiment 2 of this utility model.

[0028] The corresponding numbers for the attached figures are as follows: 1. Backrest support; 11. Main frame; 12. Support frame; 121. Connecting arm; 122. Support frame body; 123. First buffer groove; 124. Second buffer groove; 125. Slide groove; 13. Connecting joint; 2. Headrest; 3. Lumbar support; 4. Sliding locking mechanism; 41. Slide seat; 411. Locking mounting groove; 412. Unlocking mounting groove; 413. First pin; 414. Second pin; 42. Locking seat; 421. First inclined surface; 422. Locking limit groove; 43. Pressure block; 44. Spring; 5. Unlocking mechanism; 51. Second inclined surface; 52. Unlocking limit groove; 6. Seat bracket. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1 Please see Figures 1 to 4 This embodiment provides a stroller seat, including a backrest support 1. The backrest support 1 includes a main frame 11 and a support frame 12. The support frame 12 is located behind the main frame 11 and includes a support frame body 122 and at least two connecting arms 121. The support frame 12 is connected to the main frame 11 through at least one of the connecting arms 121. The stroller seat of this embodiment provides rigid support for infants and toddlers through the support frame 12, effectively preventing the infants and toddlers from tilting to the side due to fabric sagging and deformation when sitting.

[0031] The support frame body 122 or the connecting arm 121 is provided with an elastic buffer structure.

[0032] This elastic buffer structure can be implemented in a variety of different ways.

[0033] In some embodiments, the elastic cushioning structure is implemented by the following method: the support frame body 122 and the connecting arm 121 are integrally formed; the support frame body 122 and / or the connecting arm 121 are provided with a first cushioning groove 123, the depth direction of the first cushioning groove 123 intersecting the length direction of the corresponding support frame body 122 or the connecting arm 121 to form the elastic cushioning structure. The first cushioning groove on the support frame body 122 and / or the connecting arm 121 directly absorbs shock and provides a more comfortable sitting experience for infants and young children.

[0034] In some embodiments, the support frame body 122 and / or the connecting arm 121 are made of an elastic material to form the elastic buffer structure. The elastic material properties enable the support frame body 122 and / or the connecting arm 121 to possess the function of an elastic buffer structure, resulting in a simple structure. Elastic materials include, but are not limited to, plastics, rubber, and silicone.

[0035] Furthermore, in some embodiments, the connecting arm 121 is provided with an elastic cushioning structure. This elastic cushioning structure on the connecting arm 121 of the support frame 12 provides elastic cushioning for infants and toddlers, improving seating comfort. This elastic cushioning structure not only directly absorbs shocks and provides a more comfortable seating experience for infants and toddlers, but also eliminates the need for additional shock-absorbing components in other parts of the seat, significantly simplifying the overall vehicle structure.

[0036] Specifically, the connecting arm 121 is provided with a plurality of first buffer grooves 123 and a plurality of second buffer grooves 124. The plurality of first buffer grooves 123 are located on the front side of the connecting arm 121 and are spaced apart along the length of the connecting arm 121, and the plurality of second buffer grooves 124 are located on the rear side of the connecting arm 121 and are spaced apart along the length of the connecting arm 121 to form the elastic buffer structure. When the road bumps deliver the impact to the main frame, the connecting arm 121 is forced to bend slightly. The openings of the first buffer grooves 123 are compressed and closed, and the openings of the second buffer grooves 124 are stretched and opened, or the openings of the first buffer grooves 123 are stretched and opened, and the openings of the second buffer grooves 124 are compressed and closed. The free deformation surface provided by the openings of each buffer groove allows the material to flex synchronously in three dimensions, converting rigid impact into multiple small-amplitude, low-stiffness elastic deformations. The impact energy is absorbed in segments and released layer by layer, which not only significantly weakens the rebound peak but also avoids permanent deformation. After the vibration ends, each slot rebounds in tandem, the connecting arm 121 quickly returns to its original position, and the support frame 12 steadily supports the infant, achieving a "soft landing"-like buffering and shock absorption effect.

[0037] The first buffer groove 123 and the second buffer groove 124 can be arranged in various ways. For example, in some embodiments, multiple first buffer grooves 123 are arranged sequentially along the length of the connecting arm 121, followed by multiple second buffer grooves 124, to form the elastic buffer structure; in other embodiments, multiple first buffer grooves 123 are arranged sequentially along the length of the connecting arm 121, followed by multiple second buffer grooves 124, and then multiple first buffer grooves 123 are arranged sequentially again to form the elastic buffer structure; in yet another embodiment, multiple first buffer grooves 123 are arranged sequentially along the length of the connecting arm 121, followed by multiple second buffer grooves 124, and then multiple first buffer grooves 123 are arranged sequentially again, followed by multiple second buffer grooves 124, to form the elastic buffer structure.

[0038] Preferably, this embodiment employs an alternating staggered arrangement of the first buffer groove 123 and the second buffer groove 124. Specifically, the first buffer groove 123 and the second buffer groove 124 are respectively formed on the front and rear sides of the connecting arm 121. The two rows of grooves are alternately staggered along the length of the connecting arm 121. Thus, a second buffer groove 124 is provided between every two adjacent first buffer grooves 123, and a first buffer groove 123 is provided between every two adjacent second buffer grooves 124. This alternating staggered arrangement of the first buffer groove 123 and the second buffer groove 124 results in more balanced stress distribution, evenly distributing the bending moment, avoiding localized stress concentration, and reducing the likelihood of fatigue cracks during long-term vibration. Furthermore, the staggered layout allows each groove to support each other during the rebound phase, suppressing the risk of excessive unilateral overturning and resulting in more stable rebound.

[0039] Furthermore, the depth of the second buffer groove 124 is greater than the depth of the first buffer groove 123, so that the second buffer groove 124 located on the rear side, i.e. the pressure side, has a greater elastic stroke.

[0040] Furthermore, the number of connecting arms 121 in the support frame 12 can be set to two, three, four, or even more. Preferably, the support frame 12 includes three connecting arms 121, one connecting arm 121 connected to the upper end of the main frame 11, one connecting arm 121 connected to the lower left end of the main frame 11, and one connecting arm 121 connected to the lower right end of the main frame 11. Compared to the scheme of four or more connecting arms 121, three connecting arms 121 provide more stable support for the back with fewer fulcrums. The three connecting arms 121 form a stable structure with vertical linkage and triangular constraint. The upper connecting arm 121 is responsible for absorbing the longitudinal impact of the head and back, while the two lower left and right connecting arms 121 decompose the bumps of the waist and back into symmetrical tension. The three deformations occur simultaneously, avoiding the shearing feeling of "upper movement but lower stillness", effectively and stably achieving buffering and shock absorption. Furthermore, the connecting arms 121 are detachably connected to the main frame 11. The connecting arm 121 and the main frame 11 can be connected by detachable methods including but not limited to plug-in, snap-fit, and bolt connection. In this embodiment, the main frame 11 is provided with connecting joints 13 at its lower left and lower right ends, respectively. After the connecting arm 121 is plugged into the connecting joint 13, it is locked by a pin or screw.

[0041] Furthermore, the support frame 12 can be integrally molded from materials such as plastic, or it can be assembled from plastic parts and steel pipe parts.

[0042] Furthermore, in some embodiments, the stroller seat also includes a headrest 2 and / or a lumbar support 3, wherein the headrest 2 and / or lumbar support 3 are provided on the front side of the support frame 12, and / or the headrest 2 and / or the lumbar support 3 are located on the rear side of the main frame 11. Providing the headrest 2 and / or lumbar support 3 on the support frame 12 makes full use of its resources, providing more comfortable and effective support for the head and / or waist of infants and toddlers.

[0043] Furthermore, the headrest 2 is movably mounted on the support frame 12. During use, the headrest 2 can be adjusted to a suitable height to accommodate children at different stages of growth.

[0044] Specifically, a sliding locking mechanism 4 and an unlocking mechanism 5 are provided between the headrest 2 and the support frame 12. The sliding locking mechanism 4 connects the headrest 2 and the support frame 12 to lock the headrest 2 and the support frame 12. The unlocking mechanism 5 connects the sliding locking mechanism 4 to drive the sliding locking mechanism 4 to unlock the headrest 2 and the support frame 12.

[0045] Furthermore, the support frame 12 is provided with a sliding groove 125, and the sliding locking mechanism 4 includes a sliding base 41, a locking seat 42, a pressure block 43, and a spring 44. The sliding base 41 is slidably disposed on the sliding groove 125 and connected to the head rest 2. The sliding base 41 is provided with a locking mounting groove 411 and an unlocking mounting groove 412 communicating with the locking mounting groove 411. The locking seat 42 is movably disposed in the locking mounting groove 411 and can move along the locking mounting groove 411 towards or away from the support frame 12. The pressure block 43 is connected to the end of the locking seat 42 near the support frame 12, and the spring 44 abuts against the locking seat 42. The headrest 42 is located near one end of the headrest 2. The unlocking mechanism 5 is movably disposed within the unlocking mounting groove 412 and can move along the unlocking mounting groove 412 towards or away from the locking seat 42. When the unlocking mechanism 5 moves towards the locking seat 42, it drives the locking seat 42 to move the pressure block 43 away from the support frame 12, thereby unlocking the headrest 2 from the support frame 12. When the unlocking mechanism 5 moves away from the locking seat 42, the spring 44 drives the locking seat 42 to move the pressure block 43 towards the support frame 12, thereby locking the headrest 2 from the support frame 12. The headrest 2 height adjustment is convenient.

[0046] Specifically, the locking seat 42 is provided with a first inclined surface 421, and the unlocking mechanism 5 is provided with a second inclined surface 51 that pushes and cooperates with the first inclined surface 421. When the unlocking mechanism 5 moves toward the locking seat 42, the second inclined surface 51 pushes the first inclined surface 421 to drive the locking seat 42 to move the pressure block 43 away from the support frame 12. When the height of the headrest 2 needs to be adjusted, press the unlocking mechanism 5 to move it closer to the locking seat 42. At this time, the second inclined surface 51 pushes against the first inclined surface 421, and the locking seat 42, under force, moves the pressure block 43 away from the support frame 12. The spring 44 is compressed and stores energy, and the slide 41 can move the headrest 2 up and down along the slide groove 125 to the appropriate position. Release the unlocking mechanism 5, and the spring 44 returns to its original deformation, pushing the locking seat 42 to move the pressure block 43 closer to the support frame 12 until the pressure block 43 presses against the inner wall of the slide groove 125 of the support frame 12. At the same time, the first inclined surface 421 pushes against the second inclined surface 51, causing the unlocking mechanism 5 to move away from the locking seat 42 back to its initial position. Without other external forces, the spring 44 applies pressure to the locking seat 42 to press the pressure block 43 against the inner wall of the slide groove 125 of the support frame 12. At this time, the headrest 2 and the support frame 12 remain stably connected and cannot move relative to each other.

[0047] Furthermore, the locking seat 42 is provided with a locking limiting groove 422, which extends along the moving direction of the locking seat 42. The slide 41 is provided with a first pin 413 that cooperates with the locking limiting groove 422. The unlocking mechanism 5 is provided with an unlocking limiting groove 52, which extends along the moving direction of the unlocking mechanism 5. The slide 41 is provided with a second pin 414 that cooperates with the unlocking limiting groove 52. The locking limiting groove 422 and the first pin 413 effectively limit the moving direction and stroke of the locking seat 42, and the unlocking limiting groove 52 and the second pin 414 effectively limit the moving direction and stroke of the unlocking mechanism 5, making the locking and unlocking operation more stable and reliable.

[0048] In this embodiment, the sliding locking mechanism 4 and the unlocking mechanism 5 are cleverly coordinated, resulting in a compact overall structure and small space occupation.

[0049] Furthermore, the lumbar support 3 is movably mounted on the support frame 12. In some embodiments, the lumbar support 3 can be connected to the support frame 12 via an adjusting screw, and the distance between the lumbar support 3 and the support frame 12 can be adjusted by rotating the adjusting screw.

[0050] Furthermore, the stroller seat also includes a seat bracket 6, and the backrest bracket 1 is connected to the seat bracket 6, wherein the backrest bracket 1 is connected to the seat bracket 6 through the main frame 11 and / or the connecting arm 121.

[0051] Example 2 Please see Figures 4 to 5 This embodiment provides a stroller seat, including a backrest support 1. The backrest support 1 includes a main frame 11 and a support frame 12. The support frame 12 is located at the rear of the main frame 11 and includes a support frame body 122 and at least two connecting arms 121. The support frame 12 is connected to the main frame 11 through at least one of the connecting arms 121. A headrest 2 and / or a lumbar support 3 are provided on the front side of the support frame 12. The stroller seat of this embodiment provides rigid support for infants and toddlers through the support frame 12, which can effectively prevent infants and toddlers from tilting to the side due to the fabric collapsing and deforming when sitting. At the same time, the headrest 2 and / or lumbar support 3 are provided on the support frame 12, making full use of the space and providing more comfortable and effective support for the head and / or waist of infants and toddlers.

[0052] Furthermore, an elastic cushioning mechanism is provided between the support frame 12 and the headrest 2 and / or the lumbar support 3. This elastic cushioning mechanism provides cushioning for infants and toddlers, improving sitting comfort. The elastic cushioning mechanism is not shown in the accompanying drawings and is implemented in various ways. For example, in some embodiments, the connecting module between the support frame 12 and the headrest 2 or the connecting module between the support frame 12 and the lumbar support 3 is cut to form multiple buffer grooves arranged alternately along the length direction on both sides of the connecting module, thus forming the elastic cushioning mechanism. In other embodiments, a buffer spring is inserted into the connecting sleeve between the support frame 12 and the headrest 2 or the connecting module between the support frame 12 and the lumbar support 3, thus forming the elastic cushioning mechanism.

[0053] Preferably, the support frame 12 includes three connecting arms 121, one of which is connected to the upper end of the main frame 11, one of which is connected to the lower left end of the main frame 11, and one of which is connected to the lower right end of the main frame 11.

[0054] Furthermore, the connecting arm 121 is detachably connected to the main frame 11.

[0055] Furthermore, the headrest 2 is movably mounted on the support frame 12. During use, the headrest 2 can be adjusted to a suitable height to accommodate children at different stages of growth.

[0056] Specifically, a sliding locking mechanism 4 and an unlocking mechanism 5 are provided between the headrest 2 and the support frame 12. The sliding locking mechanism 4 connects the headrest 2 and the support frame 12 to lock the headrest 2 and the support frame 12. The unlocking mechanism 5 connects the sliding locking mechanism 4 to drive the sliding locking mechanism 4 to unlock the headrest 2 and the support frame 12.

[0057] Furthermore, the support frame 12 is provided with a sliding groove 125, and the sliding locking mechanism 4 includes a sliding base 41, a locking seat 42, a pressure block 43, and a spring 44. The sliding base 41 is slidably disposed on the sliding groove 125 and connected to the head rest 2. The sliding base 41 is provided with a locking mounting groove 411 and an unlocking mounting groove 412 communicating with the locking mounting groove 411. The locking seat 42 is movably disposed in the locking mounting groove 411 and can move along the locking mounting groove 411 towards or away from the support frame 12. The pressure block 43 is connected to the end of the locking seat 42 near the support frame 12, and the spring 44 abuts against the locking seat 42. The headrest 42 is located near one end of the headrest 2. The unlocking mechanism 5 is movably disposed within the unlocking mounting groove 412 and can move along the unlocking mounting groove 412 towards or away from the locking seat 42. When the unlocking mechanism 5 moves towards the locking seat 42, it drives the locking seat 42 to move the pressure block 43 away from the support frame 12, thereby unlocking the headrest 2 from the support frame 12. When the unlocking mechanism 5 moves away from the locking seat 42, the spring 44 drives the locking seat 42 to move the pressure block 43 towards the support frame 12, thereby locking the headrest 2 from the support frame 12. The headrest 2 height adjustment is convenient.

[0058] Specifically, the locking seat 42 is provided with a first inclined surface 421, and the unlocking mechanism 5 is provided with a second inclined surface 51 that pushes and cooperates with the first inclined surface 421. When the unlocking mechanism 5 moves toward the locking seat 42, the second inclined surface 51 pushes the first inclined surface 421 to drive the locking seat 42 to move the pressure block 43 away from the support frame 12. When the height of the headrest 2 needs to be adjusted, press the unlocking mechanism 5 to move it closer to the locking seat 42. At this time, the second inclined surface 51 pushes against the first inclined surface 421, and the locking seat 42, under force, moves the pressure block 43 away from the support frame 12. The spring 44 is compressed and stores energy, and the slide 41 can move the headrest 2 up and down along the slide groove 125 to the appropriate position. Release the unlocking mechanism 5, and the spring 44 returns to its original deformation, pushing the locking seat 42 to move the pressure block 43 closer to the support frame 12 until the pressure block 43 presses against the inner wall of the slide groove 125 of the support frame 12. At the same time, the first inclined surface 421 pushes against the second inclined surface 51, causing the unlocking mechanism 5 to move away from the locking seat 42 back to its initial position. Without other external forces, the spring 44 applies pressure to the locking seat 42 to press the pressure block 43 against the inner wall of the slide groove 125 of the support frame 12. At this time, the headrest 2 and the support frame 12 remain stably connected and cannot move relative to each other.

[0059] Furthermore, the locking seat 42 is provided with a locking limiting groove 422, which extends along the moving direction of the locking seat 42. The slide 41 is provided with a first pin 413 that cooperates with the locking limiting groove 422. The unlocking mechanism 5 is provided with an unlocking limiting groove 52, which extends along the moving direction of the unlocking mechanism 5. The slide 41 is provided with a second pin 414 that cooperates with the unlocking limiting groove 52. The locking limiting groove 422 and the first pin 413 effectively limit the moving direction and stroke of the locking seat 42, and the unlocking limiting groove 52 and the second pin 414 effectively limit the moving direction and stroke of the unlocking mechanism 5, making the locking and unlocking operation more stable and reliable.

[0060] In this embodiment, the sliding locking mechanism 4 and the unlocking mechanism 5 are cleverly coordinated, resulting in a compact overall structure and small space occupation.

[0061] Furthermore, the lumbar support 3 is movably mounted on the support frame 12. In some embodiments, the lumbar support 3 can be connected to the support frame 12 via an adjusting screw, and the distance between the lumbar support 3 and the support frame 12 can be adjusted by rotating the adjusting screw.

[0062] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0063] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A stroller seat, comprising a backrest support (1), characterized in that, The backrest support (1) includes a main frame (11) and a support frame (12). The support frame (12) is located on the rear side of the main frame (11). The support frame (12) includes a support frame body (122) and at least two connecting arms (121). The support frame (12) is connected to the main frame (11) through at least one of the connecting arms (121). An elastic buffer structure is provided on the support frame body (122) or the connecting arm (121).

2. A stroller seat according to claim 1, characterized in that, The connecting arm (121) is provided with a plurality of first buffer grooves (123) and a plurality of second buffer grooves (124). The plurality of first buffer grooves (123) are located on the front side of the connecting arm (121) and are spaced apart along the length direction of the connecting arm (121). The plurality of second buffer grooves (124) are located on the rear side of the connecting arm (121) and are spaced apart along the length direction of the connecting arm (121) to form the elastic buffer structure.

3. A stroller seat according to claim 2, characterized in that, A second buffer slot (124) is provided between every two adjacent first buffer slots (123), and a first buffer slot (123) is provided between every two adjacent second buffer slots (124).

4. A stroller seat according to claim 2, characterized in that, The depth of the second buffer groove (124) is greater than the depth of the first buffer groove (123).

5. A stroller seat according to claim 1, characterized in that, The support frame (12) includes three connecting arms (121), one of which is connected to the upper end of the main frame (11), one of which is connected to the lower left end of the main frame (11), and one of which is connected to the lower right end of the main frame (11).

6. A child car seat according to claim 1, characterized in that, The connecting arm (121) is detachably connected to the main frame (11).

7. A stroller seat according to claim 1, characterized in that, The support frame body (122) and the connecting arm (121) are integrally formed; the support frame body (122) and / or the connecting arm (121) are provided with a first buffer groove (123), the depth direction of the first buffer groove (123) intersects with the length direction of the corresponding support frame body (122) or the connecting arm (121) to form the elastic buffer structure.

8. A stroller seat according to claim 1, characterized in that, The support frame body (122) and / or the connecting arm (121) are made of elastic material to form the elastic buffer structure.

9. A child car seat according to any one of claims 1-8, characterized in that, It also includes a headrest (2) and / or a lumbar support (3), wherein, The front side of the support frame (12) is provided with the headrest (2) and / or the lumbar support (3), and / or, The headrest (2) and / or the lumbar support (3) are located on the rear side of the main frame (11).

10. A stroller seat according to claim 9, characterized in that, The headrest (2) is mounted on the support frame (12) and can move up and down.

11. A child car seat according to claim 10, characterized in that, A sliding locking mechanism (4) and an unlocking mechanism (5) are provided between the headrest (2) and the support frame (12). The sliding locking mechanism (4) connects the headrest (2) and the support frame (12) to lock the headrest (2) and the support frame (12). The unlocking mechanism (5) connects the sliding locking mechanism (4) to drive the sliding locking mechanism (4) to unlock the headrest (2) and the support frame (12).

12. A child car seat according to claim 11, characterized in that, The support frame (12) is provided with a slide groove (125). The sliding locking mechanism (4) includes a slide block (41), a locking seat (42), a pressure block (43), and a spring (44). The slide block (41) is slidably disposed on the slide groove (125) and connected to the headrest (2). The slide block (41) is provided with a locking mounting groove (411) and an unlocking mounting groove (412) communicating with the locking mounting groove (411). The locking seat (42) is movably disposed in the locking mounting groove (411). 1) The locking mechanism (5) is located within the locking mounting groove (411) and can move towards or away from the support frame (12) along the locking mounting groove (411). The pressure block (43) is connected to one end of the locking seat (42) near the support frame (12). The spring (44) abuts against one end of the locking seat (42) near the headrest (2). The unlocking mechanism (5) is movably located within the unlocking mounting groove (412) and can move towards or away from the locking seat (42) along the unlocking mounting groove (412). When the unlocking mechanism (5) moves toward the locking seat (42), it drives the locking seat (42) to move the pressure block (43) away from the support frame (12) so as to unlock the headrest (2) from the support frame (12); When the unlocking mechanism (5) moves away from the locking seat (42), the spring (44) drives the locking seat (42) to move the pressure block (43) towards the support frame (12) to lock the headrest (2) to the support frame (12).

13. A stroller seat according to claim 9, characterized in that, The lumbar support (3) is movable back and forth on the support frame (12).

14. A child car seat according to claim 1, characterized in that, It also includes a seat bracket (6), the backrest bracket (1) being connected to the seat bracket (6), wherein the backrest bracket (1) is connected to the seat bracket (6) via the main frame (11) and / or the connecting arm (121).

15. A stroller seat, comprising a backrest support (1), characterized in that, The backrest support (1) includes a main frame (11) and a support frame (12). The support frame (12) is located on the rear side of the main frame (11). The support frame (12) includes a support frame body (122) and at least two connecting arms (121). The support frame (12) is connected to the main frame (11) through at least one of the connecting arms (121). The front side of the support frame (12) is provided with a headrest (2) and / or a lumbar support (3).

16. A stroller seat according to claim 15, characterized in that, An elastic buffer mechanism is provided between the support frame (12) and the headrest (2) and / or the lumbar support (3).

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