A child stroller with easy folding and folding operation

Abstract

The invention discloses a child stroller with easy folding and folding operation. An upper push rod can be slidably inserted into a lower push rod, the lower end of the lower push rod is coaxially hinged to the upper end of the rear foot, and the outer wall of the connection is matched with a sliding member; an unlocking button is arranged on the rear side of the handle; the middle part of the bottom rear end of the seat is hinged to the front side of the sliding member, and the lower end of the seat support tube is hinged to the upper end of the rear foot; the rear side of the sliding member is hinged to the upper end of the push rod support sheet, the lower end of the push rod support sheet is hinged to one end of the front foot support sheet, the other end of the front foot support sheet is hinged to the front foot, and the front foot is hinged to the middle part of the rear foot; an unlocking implicated lead rope is arranged inside the upper push rod, the upper end of the unlocking implicated lead rope is engaged with the unlocking button, and the lower end of the unlocking implicated lead rope is engaged with the push rod locking piece at the lower end of the upper push rod. The invention saves manufacturing cost and labor cost, is simple, convenient and easy to operate, has a small size and light weight, can be dragged after folding, and is more convenient and humane to carry and place.

Description

Technical Field

[0001] The present invention relates to the field of infant products, in particular to a stroller, and in particular to a child stroller which is easy to fold and unfold. Background Art

[0002] The child stroller can be used for infants and young children to sit on, so that parents do not need to hold the children. The child stroller includes a front leg tube, a rear leg pivotally connected to the rear side of the front leg tube, and a seat pivotally connected to a suitable position on the front side of the lower push rod tube. A seat locking mechanism is provided between the seat and the front leg tube for limiting the relative rotation of the two, and a frame locking mechanism is provided between the rear leg and the front leg, and between the rear leg and the push rod for limiting the relative rotation thereof. Correspondingly, the child stroller is also provided with a release device for releasing the seat locking mechanism, and a frame locking device for releasing the rear leg and the front leg, and between the rear leg and the push rod. Therefore, when the stroller is to be folded, the seat release mechanism and the frame locking mechanism must be operated twice respectively, so that the seat locking mechanism and the frame locking mechanism can be released, so that the seat, the front and rear legs, and the push rod rotate relative to the pivot point and are folded.

[0003] The above arrangement makes the folding and closing operation of the entire stroller very complicated, which is very laborious and inconvenient for parents holding their children. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The object of the present invention is to provide a child stroller with easy folding operation, so as to solve the problem mentioned in the above background technology that the folding operation of the entire stroller is very complicated, which is very laborious and inconvenient for parents holding their children.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a child stroller with easy folding and folding operation, comprising a front foot, a rear foot, a lower push rod and an upper push rod, wherein the upper push rod can be slidably inserted into the lower push rod, the lower end of the lower push rod is coaxially hinged to the upper end of the rear foot, and the outer wall of the connection is matched with a sliding member; a handle is provided at the upper end of the upper push rod, and an unlocking button is provided at the rear side of the handle; an armrest connecting tube is fixedly provided at the middle and upper part of the front side of the lower push rod, and the two ends of the armrest connecting tube are connected to the armrest rotating member. Dynamic connection; armrest support tubes are hinged on the lower sides of the armrests, and the lower ends of the armrest support tubes are hinged to the lower sides of the seat; seat support tubes are symmetrically hinged on both sides of the front end of the bottom of the seat, the middle part of the rear end of the bottom of the seat is hinged to the front side of the sliding member, and the lower ends of the seat support tubes are hinged to the upper ends of the rear feet; the rear side of the sliding member is hinged to the upper end of the push rod support piece, the lower end of the push rod support piece is hinged to one end of the front foot support piece, the other end of the front foot support piece is hinged to the front foot, and the front foot is hinged to the middle of the rear foot.

[0008] Furthermore, an unlocking rope is provided inside the upper push rod, the upper end of the unlocking rope is engaged with the unlocking button, the lower end of the unlocking rope is engaged with the push rod locking piece at the lower end of the upper push rod, and the unlocking button and the push rod locking piece are both equipped with return springs.

[0009] Furthermore, a plurality of holes cooperating with the push rod locking piece are provided on one side of the lower push rod from top to bottom.

[0010] Furthermore, an unlocking drive member and a frame locking plate are telescopically arranged in the T-shaped hole at the lower end of the lower push rod through a return spring, the unlocking drive member is perpendicular to the frame locking plate, and the end of the unlocking drive member is exposed from the inner plastic part of the lower push rod and cooperates with the lower end of the upper push rod.

[0011] Furthermore, the unlocking driving member is provided with a driving inclined surface 1, the frame locking plate is provided with a driving inclined surface 2, and the unlocking driving member and the frame locking plate are matched with each other through the driving inclined surface 1 and the driving inclined surface 2.

[0012] Furthermore, the frame locking piece cooperates with the sliding member and the hole at the lower end of the lower push rod.

[0013] Furthermore, limited support columns are symmetrically arranged on both sides of the elbow at the upper end of the rear leg.

[0014] Furthermore, a folding method for a child stroller with easy folding operation includes the following steps: pressing an unlocking button to make the upper push rod slide downward in the lower push rod; pushing the upper push rod to the bottom and the sliding part unlocking; pushing the upper push rod downward, the sliding part slides on the lower push rod, driving the push rod support plate and the seat downward together, and completing the folding of the stroller.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, after adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0017] The invention saves manufacturing cost and labor cost, is simple, convenient and easy to operate, has small size and light weight, can be dragged after being folded, is more convenient and more user-friendly to carry and place, has great social utilization value, and is worthy of vigorous promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a stereogram of an embodiment provided by the present invention;

[0019] Figure 2 It is a front view of an embodiment provided by the present invention;

[0020] Figure 3 It is a structural diagram of the embodiment provided by the present invention in which the upper push rod pushes into the lower push rod in the first step of folding;

[0021] Figure 4 It is a structural diagram of the embodiment provided by the present invention in which the upper push rod is pressed downward in the second step of folding;

[0022] Figure 5 It is a structural diagram of the embodiment provided by the present invention when it is folded into place;

[0023] Figure 6 It is a structural diagram of the embodiment provided by the present invention, in which the upper push rod is pulled out after being folded into place;

[0024] Figure 7 is a cross-sectional view of an embodiment provided by the present invention;

[0025] Figure 8 yes Figure 7 A magnified schematic diagram of part A;

[0026] Fig. 9 yes Figure 7 An enlarged schematic diagram of part B;

[0027] Fig.10 It is a cross-sectional view of an upper push rod pushing into a lower push rod according to an embodiment of the present invention;

[0028] Fig.11 yes Fig.10 An enlarged schematic diagram of part C of FIG.

[0029] Fig.12 It is a schematic diagram of the decomposed structure of an embodiment provided by the present invention;

[0030] Fig.13 yes Fig.12 An enlarged schematic diagram of the D portion;

[0031] Fig.14 yes Fig.13 An enlarged schematic diagram of part E of FIG.

[0032] Fig.15 This is a usage state diagram of the second embodiment provided by the present invention;

[0033] Fig.16 is a folded state diagram of the second embodiment provided by the present invention;

[0034] Description of reference numerals:

[0035] 1. Front foot; 2. Rear foot; 3. Lower push rod; 31. Unlocking drive member; 32. Frame locking plate; 33. Driving ramp 1; 34. Driving ramp 2; 4. Upper push rod; 41. Unlocking lead rope; 42. Push rod locking plate; 5. Seat; 6. Seat support tube; 7. Armrest; 8. Armrest support tube; 9. Push rod support plate; 10. Front foot support plate 11. Sliding member 12. Armrest connecting tube 13. Unlocking button; 14. Handle; 15. Limit support column. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] See also Figure 1-Figure 14 The present invention provides an embodiment: a child stroller with easy folding operation, which comprises a front foot 1, a rear foot 2, a lower push rod 3, an unlocking drive member 31, a frame locking plate 32, a driving inclined plane 1 33, a driving inclined plane 2 34, an upper push rod 4, an unlocking involving lead rope 41, a push rod locking plate 42, a seat 5, a seat support tube 6, an armrest 7, an armrest support tube 8, a push rod support plate 9, a front foot support plate 10, a sliding member 11, an armrest connecting tube 12, an unlocking button 13, a handle 14 and a limit support column 15, wherein,

[0039] The upper push rod 4 is slidably inserted in the lower push rod 3, and the lower end of the lower push rod 3 is coaxially sleeved on the upper end of the rear foot 2, and the outer wall of the connection is matched with the sliding member 11; the upper end of the upper push rod 4 is provided with a handle 14, and the rear side of the handle 14 is provided with an unlocking button 13; the interior of the upper push rod 4 is provided with an unlocking implicated lead 41, the upper end of the unlocking implicated lead 41 is engaged with the unlocking button 13, and the lower end of the unlocking implicated lead 41 is engaged with the push rod locking piece 42 at the lower end of the upper push rod 4, and the unlocking button 13 and the push rod locking piece 42 are both matched with a return spring; one side of the lower push rod 3 is provided with a plurality of holes matched with the push rod locking piece 42 from top to bottom;

[0040] An armrest connecting tube 12 is fixedly provided on the middle and upper part of the front side of the lower push rod 3, and both ends of the armrest connecting tube 12 are rotatably connected to the armrest 7; armrest supporting tubes 8 are hinged on the lower sides of the armrest 7, and the lower ends of the armrest supporting tubes 8 are rotatably connected to the seat; seat supporting tubes 6 are symmetrically hinged on both sides of the front end of the bottom of the seat 5, the middle part of the rear end of the bottom of the seat 5 is hinged to the front side of the sliding member 11, and the lower end of the seat supporting tube 6 is hinged to the upper end of the rear foot 2; the rear side of the sliding member 11 is hinged to the upper end of the push rod supporting plate 9, the lower end of the push rod supporting plate 9 is hinged to one end of the front foot supporting plate 10, the other end of the front foot supporting plate 10 is hinged to the front foot 1, and the front foot 1 is hinged to the middle part of the rear foot 2.

[0041] A T-shaped hole is provided on the inner side of the lower end of the lower push rod 3, and an unlocking driving member 31 is telescopically provided in the longitudinal hole of the T-shaped hole through a return spring, and a driving inclined surface 1 33 is provided at one end of the unlocking driving member 31, and the other end of the unlocking driving member 31 is exposed to the upper end of the rear foot 2 under the action of the return spring and cooperates with the lower end of the upper push rod 4; a frame locking piece 32 is telescopically provided in the transverse hole of the T-shaped hole through a return spring, and a driving inclined surface 2 34 is provided on the frame locking piece 32, and the unlocking driving member 31 and the frame locking piece 32 cooperate with each other through the driving inclined surface 1 33 and the driving inclined surface 2 34, and the frame locking piece 32 cooperates with the sliding member 11 and the hole at the lower end of the lower push rod 3;

[0042] The limiting support columns 15 are symmetrically arranged on both sides of the elbows at the upper ends of the rear legs 2. When the entire frame is in use, the limiting support columns 15 support and limit the seat support tubes 6, thereby increasing the stability of the frame.

[0043] The retracting and releasing method of the present invention is as follows:

[0044] like Figure 3 , press the unlock button 13 to make the upper push rod 4 slide downward in the lower push rod 3. After the upper push rod 4 is pushed to the bottom, the sliding member 11 is unlocked. At this time, gently push downward, and the sliding member 11 slides on the lower push rod 3 to achieve the folding of the frame. Figure 4 The sliding member 11 slides on the lower push rod 3, driving the push rod support plate 9 and the seat 5 to slide toward the upper end of the lower push rod 3 to achieve the purpose of folding the vehicle. The state of the frame after folding is as follows Figure 5 As shown, at this time, the frame can be opened by simply pressing the unlock button 13 and then lifting the lower push rod 3 upward. Figure 6 As shown, after folding, the upper push rod 4 is pulled out from the lower push rod 3, and the device can be dragged, which is convenient to carry.

[0045] like Figure 7 Fig. 9 As shown, an unlocking-involving cable 41 is arranged in the upper push rod 4, and the two ends of the unlocking-involving cable 41 are respectively connected to the unlocking button 13 and the push rod locking piece 42. When the unlocking button 13 is pressed, the unlocking-involving cable 41 is pulled to make the push rod locking piece 42 at the other end escape from the square hole on the lower push rod 3, the upper push rod 4 is unlocked, and the upper push rod 4 can slide downward in the lower push rod 3, and the unlocking button 13 and the push rod locking piece 42 can be reset under the action of the reset spring.

[0046] like Figure 10-Figure 14As shown, a driving inclined surface 1 33 is provided on the lower side of the unlocking driving member 31, and a driving inclined surface 2 34 is provided on the frame locking piece 32. When the upper push rod 4 is pushed to the bottom end of the lower part of the lower push rod 3, the upper push rod 4 hits the unlocking driving member 31. Under the action of the driving inclined surface 1 33 and the driving inclined surface 2 34, the frame locking piece 32 escapes from the square groove of the sliding member 11 and retracts inward. The sliding member 11 can slide on the lower push rod 3, and the frame is unlocked. The unlocking driving member 31 and the frame locking piece 32 can both be reset under the action of the reset spring.

[0047] Embodiment 2:

[0048] Figure 15-16 1 is a structural diagram of another embodiment of the present invention. In this embodiment, the seat 5 is replaced by an integral seat, the armrest 7 is replaced by a front armrest, and an adjustable backrest is added, but the main structure and folding method of the frame are consistent with those of the first embodiment.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A child stroller that is easy to fold and unfold, comprising a front leg (1), a rear leg (2), a lower push rod (3) and an upper push rod (4), It is characterized in that The upper push rod (4) can be slidably inserted into the lower push rod (3), the lower end of the lower push rod (3) is coaxially hinged to the upper end of the rear foot (2), and the outer wall of the connection is matched with the sliding member (11); the upper end of the upper push rod (4) is provided with a handle (14), and the rear side of the handle (14) is provided with an unlocking button (13); an armrest connecting tube (12) is fixedly provided in the middle and upper part of the front side of the lower push rod (3), and the two ends of the armrest connecting tube (12) are rotatably connected to the armrest (7); the armrest support tubes (8) are hinged at the lower sides of the armrest (7), and the armrest support tubes (8) are hinged at the lower sides of the armrest (7). The lower end of the support tube (8) is rotatably connected to the seat; the front end of the bottom of the seat (5) is symmetrically hinged with seat support tubes (6); the middle of the rear end of the bottom of the seat (5) is hinged to the front side of the sliding member (11); the lower end of the seat support tube (6) is hinged to the upper end of the rear foot (2); the rear side of the sliding member (11) is hinged to the upper end of the push rod support plate (9); the lower end of the push rod support plate (9) is hinged to one end of the front foot support plate (10); the other end of the front foot support plate (10) is hinged to the front foot (1); the front foot (1) is hinged to the middle of the rear foot (2); An unlocking rope (41) is arranged inside the upper push rod (4), the upper end of the unlocking rope (41) is engaged with the unlocking button (13), the lower end of the unlocking rope (41) is engaged with the push rod locking piece (42) at the lower end of the upper push rod (4), and the unlocking button (13) and the push rod locking piece (42) are both equipped with a return spring; A plurality of holes matching with the push rod locking piece (42) are arranged on one side of the lower push rod (3) from top to bottom; An unlocking drive member (31) and a frame locking plate (32) are telescopically arranged in the T-shaped hole at the lower end of the lower push rod (3) through a return spring, the unlocking drive member (31) is perpendicular to the frame locking plate (32), and the end of the unlocking drive member (31) is exposed from the inner plastic part of the lower push rod (3) and matches with the lower end of the upper push rod (4); The unlocking driving member (31) is provided with a driving inclined surface 1 (33), and the frame locking plate (32) is provided with a driving inclined surface 2 (34), and the unlocking driving member (31) and the frame locking plate (32) are matched with each other through the driving inclined surface 1 (33) and the driving inclined surface 2 (34); The frame locking piece (32) matches with the sliding member (11) and the hole at the lower end of the lower push rod (3); The rear leg (2) has two symmetrically disposed limit support columns (15) at the upper end bend of the rear leg (2).

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