Folding baby stroller

Abstract

The invention belongs to the technical field of mother and baby products, and particularly relates to a folding baby stroller. Comprising a baby carriage body which comprises a folding bottom plate. According to the folding baby stroller, folding operation is convenient and efficient, locking of the telescopic rods can be quickly relieved by pressing the unlocking parts of the lock catches according to the lever principle, locking can be completed only by pressing the locking parts, the movement paths of the folding bottom plate and the folding side frames do not interfere with each other in the folding process, and the folding bottom plate is turned over and drawn close through the hinged connecting pieces; meanwhile, the folding side frames are pulled away from the sleeves through the sleeve rods to adapt to the rising of the middle connecting pieces, the cooperation action of the folding side frames and the middle connecting pieces is smooth, the supporting vertical frames are kept in a fixed state to be close up in a follow-up mode, wheels make contact with the ground all the time, and the stable and reliable folding process is ensured through the design of stabilizing rods; and synchronous unlocking can be achieved when needed, safety and operation convenience are both considered, rapid folding of the baby carriage is finally achieved, and wide application prospects are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of mother and baby products, and specifically relates to a folding baby stroller. Background Art

[0002] A baby stroller is a tool cart designed to facilitate outdoor activities for babies. It is the favorite means of transportation for babies to take walks and is also a necessity for mothers when taking their babies shopping on the street. However, according to the growth of the baby and the usage purposes, baby strollers can be divided into many types. Generally, it is based on the load capacity, and the general test standard is nine to fifteen kilograms. An ordinary baby stroller can be used for about four to five years, but the existing baby strollers still have the following deficiencies when in use:

[0003] When the existing baby stroller is folded, the movement paths of common components interfere with each other, resulting in jams. The folding steps are cumbersome and require coordinated operations in multiple links. The lock buckle design is prone to accidental touch or difficult to unlock, and the structure is loose and unstable after folding, affecting the convenience and safety of use.

[0004] Therefore, we propose a folding baby stroller to solve the above problems. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a folding baby stroller, which solves the problems of jams caused by mutual interference of movement paths, cumbersome folding steps, easy accidental touch, difficult unlocking, and poor structural stability in the above background art.

[0007] (II) Technical Solutions

[0008] The present invention specifically adopts the following technical solutions to achieve the above purposes:

[0009] A folding baby stroller includes a baby stroller main body, and the baby stroller main body includes a folding bottom plate, folding side frames symmetrically arranged on both sides of the folding bottom plate, and support upright frames;

[0010] The folding bottom plate includes folding rods and bottom plate main bodies arranged on both sides of the folding rods. At both ends of the side of the bottom plate main body away from the folding rods, support members are provided;

[0011] The folding side frame includes an intermediate connecting member. Two telescopic rods are movably arranged inside the intermediate connecting member. The bottom ends of the telescopic rods are movably connected to one of the support members, and lock buckles are arranged on the telescopic rods;

[0012] The support upright frame includes two upright rods symmetrically arranged. The bottom ends of the upright rods are fixedly connected to one of the support members.

[0013] Furthermore, both ends of the folding rod are provided with folding connecting pieces, wherein the two ends of one side of one base plate body are respectively fixedly connected to the two folding connecting pieces, and the two ends of one side of the other base plate body are respectively movably hinged to the two folding connecting pieces through hinge joints.

[0014] Furthermore, a plurality of reinforcing transverse bars and reinforcing longitudinal bars are fixedly arranged inside the base plate body, and two ends of the base plate body on one side away from the folding rod are respectively hinged to two supporting members, and a stabilizing bar is fixedly arranged between the two supporting members.

[0015] Furthermore, wheels are movably provided at the bottom of the support member, wherein two opposite wheels are provided with a synchronization rod and a brake rod.

[0016] Furthermore, the telescopic rod comprises a sleeve and a sleeve rod movably sleeved inside the sleeve, the sleeve rod and the sleeve have opposite ends hinged to the intermediate connector and the support respectively, and a notch is provided on one end of the sleeve.

[0017] Furthermore, the lock includes a fixing part 1 and a fixing part 2, the fixing part is set on one end of the sleeve, the bottom of the fixing part 1 is fixedly provided with a clamp that is engaged with the notch, and a locking plate is hinged on one side of the fixing part 1, and the two ends of the locking plate away from the hinge are respectively a locking part and an unlocking part.

[0018] Furthermore, the second fixing member is fixedly sleeved on the sleeve rod, and a buckle that is engaged with the locking portion is provided on one side of the second fixing member.

[0019] Furthermore, two enclosure rods 1 respectively located above the two telescopic rods are hinged inside the middle connecting member.

[0020] Furthermore, the supporting frame includes a second enclosure rod that connects two vertical poles together through a corner connector, and an end of the corner connector away from the second enclosure rod is hinged to an end of the first enclosure rod.

[0021] Furthermore, the supporting frame also includes handles whose two ends are respectively connected to the tops of the two upright poles through connecting heads.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the present invention provides a foldable baby stroller, which has the following beneficial effects:

[0024] The present invention features convenient and efficient folding operation. By pressing the unlocking part of the lock, the telescopic rod can be quickly unlocked using the lever principle. When locking, only the locking part needs to be pressed to complete the operation. During the folding process, the movement paths of the folding bottom plate and the folding side frame do not interfere with each other. The folding bottom plate is turned and closed through the hinge connecting piece. At the same time, the folding side frame adapts to the rise of the intermediate connecting piece by pulling the sleeve rod out of the sleeve. The two work together smoothly. The support upright frame remains fixed and follows along. With the cooperation of the wheels always in contact with the ground and the design of the stabilizer bar, it ensures a stable and reliable folding process. The linkage mechanism of multiple lock catches can not only prevent accidental folding caused by accidental touch but also unlock synchronously when needed, taking into account both safety and operation convenience. Ultimately, the baby stroller can be quickly folded, having broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main structure of the baby stroller of the present invention;

[0026] Figure 2 It is an exploded view of the main structure of the baby stroller of the present invention;

[0027] Figure 3 For Figure 2 The enlarged view of the structure at A in

[0028] Figure 4 For Figure 2 The enlarged view of the structure at B in

[0029] Figure 5 It is a sectional view of the lock catch structure of the present invention;

[0030] Figure 6 It is a schematic diagram of the folded state structure of the main body of the baby stroller of the present invention.

[0031] In the figure: 1. Baby stroller main body; 11. Folding bottom plate; 111. Folding rod; 112. Bottom plate main body; 113. Support member; 114. Folding connecting piece; 115. Hinge joint; 116. Reinforcing cross bar; 117. Reinforcing longitudinal bar; 118. Stabilizer bar; 119. Wheel; 1191. Synchronous rod; 1192. Brake rod; 12. Folding side frame; 121. Intermediate connecting piece; 122. Telescopic rod; 1221. Sleeve; 1222. Sleeve rod; 1223. Notch; 123. Lock catch; 1231. Fixed part one; 1232. Fixed part two; 1233. Clamp; 1234. Lock catch plate; 1235. Locking part; 1236. Unlocking part; 1237. Buckle; 124. Enclosing rod one; 13. Support upright frame; 131. Upright rod; 132. Enclosing rod two; 133. Handle; 134. Corner connecting piece; 135. Connecting head. DETAILED DESCRIPTION OF THE INVENTION

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment

[0034] As Figures 1-6 shown, a folding baby stroller proposed in an embodiment of the present invention includes a stroller main body 1, and the stroller main body 1 includes a folding bottom plate 11, folding side frames 12 symmetrically arranged on both sides of the folding bottom plate 11, and a support upright frame 13.

[0035] The folding bottom plate 11 includes a folding rod 111 and bottom plate main bodies 112 arranged on both sides of the folding rod 111. Support members 113 are arranged at both ends of the side of the bottom plate main body 112 away from the folding rod 111.

[0036] The folding side frame 12 includes an intermediate connecting member 121. Two telescopic rods 122 are movably arranged inside the intermediate connecting member 121. The bottom ends of the telescopic rods 122 are movably connected to one of the support members 113, and a locking buckle 123 is arranged on the telescopic rods 122.

[0037] The support upright frame 13 includes two upright rods 131 arranged symmetrically. The bottom ends of the upright rods 131 are fixedly connected to one of the support members 113.

[0038] As Figure 3 shown, in some embodiments, folding connecting members 114 are arranged at both ends of the folding rod 111. Both ends of one side of one bottom plate main body 112 are fixedly connected to the two folding connecting members 114 respectively, and both ends of one side of the other bottom plate main body 112 are movably hinged to the two folding connecting members 114 through hinge joints 115.

[0039] The top of the folding connecting member 114 is in a closed state, and the opening is located at the bottom, so that the other bottom plate main body 112 can be flipped relative to the folding connecting member 114 through the hinge joint 115, so that the two bottom plate main bodies 112 can be relatively close together to achieve folding. At the same time, the design of the closed state of the top of the folding connecting member 114 enables the two bottom plate main bodies 112 to be positioned after being unfolded at 180 degrees and will not rotate excessively, further ensuring the stability of the overall structure of the stroller.

[0040] As Figure 3As shown, in some embodiments, a number of reinforcing crossbars 116 and reinforcing longitudinal bars 117 are fixedly arranged inside the bottom plate main body 112. The two ends of the side of the bottom plate main body 112 away from the folding rod 111 are respectively hinged to two support members 113, and a stabilizing rod 118 is fixedly arranged between the two support members 113.

[0041] The design of the number of reinforcing crossbars 116 and reinforcing longitudinal bars 117 ensures the structural strength of the bottom plate main body 112. The hinged manner of the bottom plate main body 112 and the support members 113 enables the wheels 119 not to flip with the bottom plate main body 112, allowing the support members 113 to drive the wheels 119 to always keep in contact with the ground, ensuring the stability after the folding state. The setting of the stabilizing rod 118 further ensures the stability between the two support members 113.

[0042] As Figure 1 shown, in some embodiments, wheels 119 are movably arranged at the bottom of the support members 113, and a synchronizing rod 1191 and a brake rod 1192 are arranged on two opposite wheels 119.

[0043] The four wheels 119 are respectively located below the two support stands 13, divided into front wheels 119 and rear wheels 119. The synchronizing rod 1191 and the brake rod 1192 are installed on the two rear wheels 119. The setting of the synchronizing rod 1191 enables the two rear wheels 119 to turn synchronously, but they cannot rotate 360 degrees like the front wheels 119. The brake rod 1192 is used to control the locking of the rear wheels 119, making the stroller unable to move, making it safer to use.

[0044] As Figure 3 shown, in some embodiments, the telescopic rod 122 includes a sleeve 1221 and a rod 1222 movably sleeved inside the sleeve 1221. The opposite ends of the rod 1222 and the sleeve 1221 are respectively hinged to the intermediate connecting member 121 and the support member 113, and a notch 1223 is arranged at one end of the sleeve 1221.

[0045] When the stroller is folded, the telescopic rod 122 needs to be unlocked so that the rod 1222 can be pulled out from the inside of the sleeve 1221 to adapt to the elevation of the intermediate connecting member 121 in the folded state. When the telescopic rod 122 is in the locked state, the intermediate connecting member 121 cannot be elevated, and the stroller cannot be folded. Moreover, the number of telescopic rods 122 is four, and the latches 123 on all four telescopic rods 122 need to be unlocked to fold. When the latches 123 on some telescopic rods 122 are accidentally touched and unlocked, the remaining non-unlocked telescopic rods 122 will still prevent the stroller from being folded, further ensuring the safety of use.

[0046] As Figures 3-5As shown, in some embodiments, the latch 123 includes a first fixing member 1231 and a second fixing member 1232. The first fixing member 1231 is sleeved on one end of the sleeve 1221. A clamp 1233 that is engaged with the notch 1223 is fixedly provided at the bottom of the first fixing member 1231. A latch plate 1234 is hinged to one side of the first fixing member 1231. The two ends of the latch plate 1234 away from the hinge are a locking portion 1235 and an unlocking portion 1236 respectively. The second fixing member 1232 is fixedly sleeved on the sleeve rod 1222. A buckle 1237 that is engaged with the locking portion 1235 is provided on one side of the second fixing member 1232.

[0047] The first fixing member 1231 is fixed to the clamp 1233 by locking screws. The clamp 1233 engages with the notch 1223 to achieve the fixation of the first fixing member 1231 and the sleeve 1221. The second fixing member 1232 is fixed to the sleeve rod 1222 by locking screws. The locking portion 1235 is L-shaped. After the locking portion 1235 engages with the buckle 1237, the sleeve rod 1222 cannot be pulled out from the inside of the sleeve 1221. When unlocking is needed, using the lever principle, press the unlocking portion 1236 to make the locking portion 1235 tilt up and disengage from the engagement with the buckle 1237, achieving the unlocking of the latch 123. The sleeve rod 1222 can be pulled out from the inside of the sleeve 1221. When relocking, slide the sleeve rod 1222 inside the sleeve 1221 to make the second fixing member 1232 abut against the first fixing member 1231, and press the locking portion 1235 to engage with the buckle 1237, then the locking can be achieved. The operation method is simple and fast.

[0048] As Figure 4 shown, in some embodiments, two first surrounding rods 124 are further hinged inside the intermediate connecting member 121 and are respectively located above the two telescopic rods 122.

[0049] The opening of the intermediate connecting member 121 faces downward, which is the same principle as the folding connecting member 114, so that the two first surrounding rods 124 are positioned after being unfolded by 180 degrees and will not rotate excessively, further ensuring the structural stability of the overall stroller. The inclined telescopic rods 122 further ensure the structural stability of the folding side frame 12.

[0050] As Figure 4 shown, in some embodiments, the supporting upright frame 13 includes a second surrounding rod 132 that connects two upright rods 131 together through a corner connecting member 134. One end of the corner connecting member 134 away from the second surrounding rod 132 is hinged to one end of the first surrounding rod 124.

[0051] The provision of the second surrounding rod 132 ensures the structural stability between two opposite vertical rods 131. At the same time, when used in conjunction with the first surrounding rod 124, it forms the baby carriage fence. One end of the first surrounding rod 124 away from the middle connecting member 121 is hinged to the corner connecting member 134. The baby carriage is foldable, and the supporting upright frames 13 do not participate in the folding. The two supporting upright frames 13 move relatively closer as the folding bottom plate 11 and the folding side frames 12 are folded.

[0052] As Figure 4 shown, in some embodiments, the supporting upright frame 13 further includes a handle 133 whose two ends are respectively connected to the tops of the two vertical rods 131 through connectors 135.

[0053] The connector 135 includes two rotating discs locked by screws. The handle 133 can be flipped and moved closer to the vertical rod 131 relative to the connector 135, further reducing the occupied space during folding. The provision of the handle 133 facilitates the user to push the baby carriage. Moreover, the number of handles 133 is two, which facilitates the user to freely choose to push the baby carriage from the front or the back, making it more convenient to use.

[0054] During use, when the lock 123 is locked, refer to Figure 1 . After the lock 123 is locked, the sleeve rod 1222 cannot move relative to the sleeve 1221. The telescopic rod 122 pulls the middle connecting member 121 relative to the support member 113, ensuring the stability of the folding side frame 12 and also the stability of the folding bottom plate 11. When the baby carriage needs to be folded, press the unlocking part 1236 so that the locking part 1235 disengages from the engagement with the buckle 1237. The sleeve rod 1222 can move relative to the sleeve 1221. At this time, lift the folding rod 111. The folding rod 111 lifts the folding connecting member 114, causing one of the bottom plate bodies 112 to flip relative to the folding connecting member 114 through the hinge joint 115. At this time, the two supporting upright frames 13 are pulled by the two bottom plate bodies 112 to move relatively, causing the two supporting upright frames 13 to push against the first surrounding rod 124, causing the first surrounding rod 124 to lift the middle connecting member 121. The middle connecting member 121 rises to lift the sleeve rod 1222, causing the sleeve rod 1222 to be partially withdrawn from the inside of the sleeve 1221. When the folding rod 111 is lifted in place, the two telescopic rods 122 in the folding upright frame come together, and the two supporting upright frames 13 also move relatively closer, greatly reducing the volume of the baby carriage and making it more convenient to carry.

[0055] In summary, the folding baby stroller is convenient and efficient in folding operation. By pressing the unlocking part 1236 of the locking buckle 123, the telescopic rod 122 can be quickly unlocked by using the lever principle. When locking, only need to press the locking part 1235 to complete. During the folding process, the movement paths of the folding bottom plate 11 and the folding side frame 12 do not interfere with each other. The folding bottom plate 11 realizes flipping and approaching through the hinge connecting piece. At the same time, the folding side frame 12 adapts to the elevation of the intermediate connecting piece 121 by pulling the sleeve rod 1222 out of the sleeve 1221. The two cooperate smoothly, and the supporting upright frame 13 remains fixed and follows closely. With the design that the wheels 119 always contact the ground and the stabilizer bar 118, it ensures that the folding process is stable and reliable. The linkage mechanism of multiple locking buckles 123 can not only prevent accidental folding caused by accidental touch, but also unlock synchronously when needed, taking into account both safety and operation convenience. Finally, the baby stroller can be quickly folded, and has broad application prospects.

[0056] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A folding baby stroller, comprising a stroller main body (1), characterized in that: The baby carriage body (1) comprises a folding bottom plate (11), folding side frames (12) symmetrically arranged on both sides of the folding bottom plate (11), and a supporting stand (13); The foldable bottom plate (11) comprises a foldable rod (111) and a bottom plate body (112) arranged on both sides of the foldable rod (111), and support members (113) are arranged at both ends of a side of the bottom plate body (112) away from the foldable rod (111); The folding side frame (12) comprises an intermediate connecting member (121), two telescopic rods (122) are movably arranged inside the intermediate connecting member (121), the bottom ends of the telescopic rods (122) are movably connected to one of the supporting members (113), and a lock buckle (123) is arranged on the telescopic rods (122); The supporting stand (13) comprises two symmetrically arranged stand poles (131), and the bottom ends of the stand poles (131) are fixedly connected to one of the supporting members (113).

2. The folding baby stroller according to claim 1, characterized in that: Both ends of the folding rod (111) are provided with folding connecting pieces (114), the two ends of one side of one base plate body (112) are respectively fixedly connected to the two folding connecting pieces (114), and the two ends of one side of the other base plate body (112) are respectively movably hinged to the two folding connecting pieces (114) via hinged joints (115).

3. A foldable baby stroller according to claim 2, characterized in that: A plurality of reinforcing cross bars (116) and reinforcing longitudinal bars (117) are fixedly arranged inside the base plate body (112); two ends of a side of the base plate body (112) away from the folding rod (111) are respectively hinged to two support members (113); and a stabilizing rod (118) is fixedly arranged between the two support members (113).

4. A folding baby stroller according to claim 1, wherein: The bottom of the support member (113) is movably provided with wheels (119), wherein two opposite wheels (119) are provided with a synchronization rod (1191) and a brake rod (1192).

5. A foldable baby stroller according to claim 1, characterized in that: The telescopic rod (122) comprises a sleeve (1221) and a sleeve rod (1222) movably sleeved inside the sleeve (1221); the sleeve rod (1222) and the sleeve (1221) have opposite ends hinged to the intermediate connecting piece (121) and the supporting piece (113), respectively; and a notch (1223) is provided on one end of the sleeve (1221).

6. A foldable baby stroller according to claim 1, characterized in that: The lock (123) comprises a fixing member 1 (1231) and a fixing member 2 (1232); the fixing member 1 (1231) is sleeved on one end of the sleeve (1221); a clamp (1233) which is clamped with the notch (1223) is fixedly provided at the bottom of the fixing member 1 (1231); a lock plate (1234) is hingedly connected to one side of the fixing member 1 (1231); and two ends of the lock plate (1234) away from the hinge are respectively a locking portion (1235) and an unlocking portion (1236).

7. A folding baby stroller according to claim 6, wherein: The second fixing member (1232) is fixedly sleeved on the sleeve rod (1222), and a buckle (1237) is provided on one side of the second fixing member (1232) for being engaged with the locking portion (1235).

8. A foldable baby stroller according to claim 1, characterized in that: Inside the intermediate connecting member (121), two first surrounding rods (124) are respectively hinged above the two telescopic rods (122).

9. A foldable baby stroller according to claim 1, characterized in that: The supporting vertical frame (13) includes a second surrounding rod (132) that connects two vertical rods (131) together through an angle connecting member (134). One end of the angle connecting member (134) away from the second surrounding rod (132) is hinged to one end of the first surrounding rod (124).

10. A folding baby stroller according to claim 1, characterized in that: The supporting vertical frame (13) further includes a handle (133) whose two ends are respectively connected to the tops of the two vertical rods (131) through connecting heads (135).

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