Stroller frame with adjustable seat frame height position

Abstract

The utility model discloses a stroller frame with a seat frame adjustable in height position, which comprises a frame and a seat frame, two inner sides of the frame are respectively connected with a sliding groove, one or two sliding blocks are arranged in each sliding groove in a sliding fit mode, the sliding blocks on the two sliding grooves are arranged in a left-right symmetrical mode, and the sliding blocks on the two sliding grooves are arranged in a left-right symmetrical mode. Every two sliding blocks which are in bilateral symmetry are connected to the same seat frame, and a locking mechanism for locking the sliding blocks on the sliding grooves is arranged between each sliding block and the corresponding sliding groove. Through the arrangement of the sliding groove, the sliding block, the locking mechanism and the like, the height of the seat frame can be adaptively adjusted in the length direction of the frame so as to meet the visual field requirement of a sitting child, and the seat frame is particularly suitable for being used in a single-person mode under the dual mode of single-person and double-person interchange.

Description

Technical Field

[0001] The utility model relates to the technical field of child strollers, in particular to a child stroller frame with an adjustable seat frame height. Background Art

[0002] In existing stroller frames, the seat frame is fixed at a fixed height during use, which can be difficult to adapt to a child's height changes and affect their field of vision. This is particularly true of the currently popular dual-mode strollers that offer interchangeable single and double seating. These dual-mode strollers have at least one seat frame fixed at a fixed height. To switch to double mode, the other seat frame is deployed onto the frame. To switch to single mode, the detachable or rotatable seat frame is removed or hidden. With these dual-mode strollers, the seat frame is often either too high or too low, failing to properly adapt to a child's height and field of vision. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a child stroller frame with an adjustable seat frame height.

[0004] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0005] A child stroller frame with an adjustable seat frame height position comprises a vehicle frame and a seat frame, and is characterized in that a slide groove is connected to each inner side of the vehicle frame, one or two sliders are slidably engaged in each slide groove, the sliders on the two slide grooves are arranged symmetrically on the left and right, each two symmetrical sliders are connected to the same seat frame, and a locking mechanism is provided between each slider and the slide groove to lock the slider on the slide groove.

[0006] Preferably, the locking mechanism includes a pressing block, a locking bead, and a return spring; a receiving groove with a top opening is formed on the slider, and a through hole connected to the receiving groove is opened on the side of the slider for embedding into the sliding groove, and the inner diameter of the through hole is smaller than the diameter of the locking bead; the receiving groove accommodates the pressing block and a return spring is connected between the bottom of the receiving groove and the bottom of the pressing block, the top of the pressing block extends out of the receiving groove, an arc groove is opened on the pressing block and on the side facing the sliding groove, and an extrusion groove is opened on the pressing block and below the arc groove The arc groove is connected to the extrusion groove, and the openings of the arc groove and the extrusion groove are both facing the chute; multiple locking grooves are formed in the chute and along its length, and the openings of the locking grooves are opposite to the openings of the extrusion grooves; when the slider is slid until the perforation is coaxial with any locking groove, the locking bead is inserted into the extrusion groove, perforation and locking groove without external force, thereby locking the slider and the chute; when downward external force is applied to the pressing block, the locking bead is squeezed into the arc groove and perforation, thereby unlocking the slider and the chute. The locking mechanism with such a specific structure is simple in structure, easy to operate and smooth.

[0007] Preferably, a male buckle is fixedly connected to the side of each slider away from the groove, and a female buckle is fixedly connected to both sides of each seat frame. Each seat frame is detachably connected to the two corresponding slider male buckles through the two female buckles.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] The utility model can adaptively adjust the height of the seat frame along the length direction of the frame through the settings of the slide groove, the slider, the locking mechanism, etc. to match the visual field requirements of the children riding on it. It is particularly suitable for single-person mode in a dual mode of interchange between single and double persons. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure involved in the utility model;

[0011] Figure 2 Schematic diagram of the positional relationship between the slide groove and the slider, etc. of the present invention;

[0012] Figure 3 It is a partial side cross-sectional view between the slide groove and the slider, etc. of the utility model;

[0013] Figure 4 This is a schematic diagram of the structure of the pressing block and the slider of the present invention;

[0014] Figure 5 This is a side structural cross-sectional view of the pressing block and the slider, etc. of the utility model;

[0015] Figure 6 This is a schematic diagram of the three-dimensional structure of the pressing block of the present invention;

[0016] Among them, 1. frame, 2. seat frame, 3. slide groove, 3.1. locking groove, 4. slider, 4.1. receiving groove, 4.2. perforation, 5. pressing block, 5.1. pressing handle, 5.2. arc groove, 5.3. extrusion groove, 6. return spring, 7. locking bead, 8. buckle. DETAILED DESCRIPTION

[0017] The present invention will now be further described with reference to the accompanying drawings. Any parts not described in detail below are based on the prior art in this field. Furthermore, the specific method of fixed connection is also referenced to the prior art.

[0018] like Figure 1-6 As shown, the utility model is a child stroller frame with an adjustable seat frame height, which can be a single-person / double-person single-mode stroller frame, or a double-person interchangeable dual-mode stroller frame. Figure 1 Shown is a single-person mode of a seat frame.

[0019] The stroller frame of the present invention specifically includes a frame 1 and a seat frame 2. A chute 3 is conventionally fixedly connected to each inner side of the frame 1 along its length. Each chute 3 is closed at both ends, and its opening is located on one side of the two chute slits symmetrically. That is, the openings of the two chute slits 3 are symmetrically arranged. One or two sliders 4 slidably engage within each chute 3. When only one slider 4 is located within each chute 3, a single-person single mode is used. When two sliders 4 are located within each chute 3, a dual mode, interchangeable between a single and a double mode, or a double-person single mode is used. The sliders 4 within the two chute slits 3 correspond to each other and are symmetrically arranged.

[0020] Each slider 4 is formed with a receiving slot 4.1 with an open top. A pressing block 5 slidably fits within the receiving slot 4.1. The top of the pressing block 5 extends from the top of the receiving slot 4.1 and is formed with a pressing handle 5.1. A return spring 6 is fixedly connected between the bottom of the pressing block 5 and the bottom of the receiving slot 4.1. On the pressing block 5, facing the side of the chute 3, a circular arc groove 5.2 and an extrusion groove 5.3 are formed or formed one after the other from top to bottom. The circular arc groove 5.2 and the extrusion groove 5.3 are connected (the bottom of the circular arc groove 5.2 and the top of the extrusion groove 5.3 are connected), and both openings face toward the chute. The inner wall of the extrusion groove 5.3 consists of two sections: a vertical wall that seamlessly connects with the inner wall of the circular arc groove, and a sloped wall that seamlessly connects with the vertical wall (sloping downward from the side away from the chute to the side near the chute). A circular through-hole 4.2 communicating with the receiving groove is provided on the side of the slider 4 that is intended to be embedded in the chute 3. The inner diameter of the through-hole 4.2 is slightly smaller than the diameter of the locking bead 7. Correspondingly, a plurality of locking grooves 3.1 are formed on the inner wall at the deepest part of the chute 3. The locking grooves 3.1 are evenly spaced along the length of the chute. The opening direction of the locking grooves 3.1 is consistent with the opening direction of the chute 3 and the two are connected. When the slider 4 is slid until the perforation 4.2 is coaxial with any locking groove 3.1, without external force, the locking bead 7 engages the extrusion groove 5.3, the perforation 4.2, and the locking groove 3.1, locking the slider 4 with the groove 3 and securing the seat frame 2 to a certain position on the vehicle frame 1. Furthermore, when a downward external force is applied to the pressing block 5, the locking bead 7 is squeezed by the extrusion groove 5.3 and the sidewalls of the receiving groove into the arc groove 5.2 and the perforation 4.2. The size of the arc groove 5.2 and the depth of the perforation 4.2 are sufficient to accommodate the locking bead 7, unlocking the slider from the groove. The pressing block, locking bead, return spring, and other components constitute the locking mechanism of the present invention. This specifically designed locking mechanism is simple in structure and easy and smooth to operate.

[0021] To allow the seat frame to be detached from the vehicle frame, the present invention also features a male buckle 8 fixedly attached to the side of each slider 4, away from the perforation. Correspondingly, a female buckle 9 is fixedly attached to each side of each seat frame 2. Each seat frame 2 is detachably connected between the two female buckles and the male buckles of the two slider buckles on the two chute slots 3. This arrangement is ideal for both single and double-seat interchangeable modes.

[0022] When the present invention is in use, first adjust the position of the two sliders 4 corresponding to each seat frame 2. When adjusting the position up or down, it is necessary to press the pressing block 5 downward to force the locking bead 7 to enter the arc groove 5.2 to achieve the unlocked state, and then slide the slider; when sliding to the appropriate position (at this time, the through hole 4.2 needs to be coaxial with the locking groove 3.1 on the slide 3), the applied external force is released, and under the action of the return spring 6, the pressing block 5 slides upward relative to the accommodating groove 4.1 of the slider. Because the size of the arc groove is smaller than that of the locking bead 7, the locking bead 7 is forced to enter the coaxial extrusion groove, through hole 4.2 and locking groove 3.1 to achieve locking. Then, a seat frame buckle female buckle is inserted into each of the two sliders arranged opposite to each other on the left and right to achieve a detachable connection between the seat frame and the slider.

Claims

1. A child stroller frame with an adjustable seat frame height, comprising a frame and a seat frame, characterized in that: There is a slide groove connected to each inner side of the frame, and one or two sliders are slidably fitted in each slide groove. The sliders on the two slide grooves are symmetrically arranged on the left and right. Every two symmetrical sliders are connected to the same seat frame, and a locking mechanism is provided between each slider and the slide groove to lock the slider on the slide groove.

2. A child stroller frame with an adjustable seat frame height according to claim 1, characterized in that: The locking mechanism includes a pressing block, a locking bead, and a return spring; a receiving groove with a top opening is formed on the slider, and a through hole connected to the receiving groove is opened on the slider for embedding the sliding groove, and the inner diameter of the through hole is smaller than the diameter of the locking bead; the receiving groove accommodates the pressing block and a return spring is connected between the bottom of the receiving groove and the bottom of the pressing block, the top of the pressing block extends out of the receiving groove, an arc groove is opened on the pressing block and on one side facing the sliding groove, an extrusion groove is opened on the pressing block and below the arc groove, and the circular groove is opened. The arc groove is connected with the extrusion groove, and the openings of the arc groove and the extrusion groove are both facing the slide groove; a plurality of locking grooves are formed in the slide groove and along its length direction, and the openings of the locking groove are opposite to the openings of the extrusion groove; when the sliding slider is slid until the perforation is coaxial with any locking groove, the locking bead is inserted into the extrusion groove, the perforation and the locking groove without external force, thereby locking the slider and the slide groove, and when downward external force is applied to the pressing block, the locking bead is squeezed into the arc groove and the perforation, thereby unlocking the slider and the slide groove.

3. A child stroller frame with an adjustable seat frame height according to claim 1 or 2, characterized in that: A male buckle is fixedly connected to the side of each slider away from the groove, and a female buckle is fixedly connected to both sides of each seat frame. Each seat frame is detachably connected to the two corresponding slider male buckles through the two female buckles of the buckle.

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