Sliding unlocking mechanism for baby carriage

Abstract

The sliding unlocking mechanism for the baby carriage comprises a handlebar tube and a sliding unlocking mechanism body, the sliding unlocking mechanism body comprises a left sliding rod and a right sliding rod which are installed on the two inner sides of the handlebar tube in a sliding mode, and a pull rod outer tube installed between the left sliding rod and the right sliding rod. A left traction pull rod and a right traction pull rod are arranged in the pull rod outer pipe, one end of the left traction pull rod and one end of the right traction pull rod are fixed to the left guide piece and the right guide piece through sliding pins respectively, and the other end of the left traction pull rod and the other end of the right traction pull rod are provided with sliding clamping protrusions clamped and limited in the handlebar pipe. And a rotating grab handle capable of driving the rotating driving piece to rotate is sleeved on the rotating driving piece. During use, a user rotates the rotary grab handle with one hand, then the left traction pull rod and the right traction pull rod do telescopic movement by rotating the driving piece and the sliding pin, the left sliding rod and the right sliding rod can slide up and down on the two sides of the handlebar tube, the height of the seat clamping seat can be conveniently adjusted, and the seat clamping seat is convenient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic mechanisms, in particular to a sliding unlocking mechanism for a baby carriage. Background Art

[0002] At present, baby strollers are indispensable baby products for most families, especially foldable baby strollers, which provide great convenience when traveling. However, the commonly used baby strollers include not only single-seat baby strollers for single babies, but also double-seat baby strollers designed for twins.

[0003] The existing Chinese patent application number is CN201921479323.8, and the patent name is a utility model patent for a baby stroller. The patent discloses a baby stroller comprising: a handlebar; two front wheels, two rear wheels, and a wheel frame assembly; two positioning rods arranged side by side to connect the wheel frame assembly and the handlebar; two seats, respectively provided on the wheel frame assembly and the positioning rods; a first folding joint; and a second folding joint. The handlebar has a folding switch that, when pressed, triggers the first folding joint to unlock. When the handlebar is folded to a preset angle relative to the positioning rods, the second folding joint is further triggered to unlock, thereby completing the overall folding of the baby stroller after the wheel frame assembly itself is folded. According to the disclosed embodiment, the baby stroller can accommodate at least two babies at the same time. While ensuring the baby stroller's compact structure and strong maneuverability, it is more convenient to fold, making it more convenient to carry the baby stroller and reducing the space occupied during storage.

[0004] Although the above-mentioned stroller can effectively solve the problem of space occupation and accommodate two babies at the same time, when the double-seat stroller needs to be converted into a single-seat stroller occasionally, if the upper baby seat is retained, the upper part will be too heavy and easy to tip over. If the lower baby seat is retained, it will be too close to the stroller pocket below, and the baby will sit too low, which is inconvenient to use. Therefore, it is necessary to design a structure to facilitate the adjustment of the seat height when the double-seat stroller is converted into a single-seat stroller. Utility Model Content

[0005] The purpose of the present invention is to provide a sliding unlocking mechanism for a baby stroller, aiming to solve the above-mentioned technical problems. When the present invention is used, the user rotates the rotating handle with one hand, and then the left traction rod and the right traction rod are telescopically movable by rotating the driving member and the sliding pin, so that the left slide rod and the right slide rod can slide up and down on both sides of the handlebar tube, and the seat base height can be conveniently adjusted, making the present invention convenient and practical.

[0006] A sliding unlocking mechanism for a baby stroller, comprising a U-shaped handle tube. A sliding unlocking mechanism is provided between the two side tubes of the handle tube. The sliding unlocking mechanism includes a left sliding rod and a right sliding rod. The left sliding rod is slidably installed on the left inner side of the handle tube, and the right sliding rod is slidably installed on the right inner side of the handle tube. A pull rod outer tube is provided between the left sliding rod and the right sliding rod. The two ends of the pull rod outer tube are fixedly connected to the left sliding rod and the right sliding rod respectively. A left traction pull rod and a right traction pull rod are provided inside the pull rod outer tube. One end of the left traction pull rod passes through the left sliding rod and is clamped in the limit hole of the handle tube, and the other end is fixed on the left guide member. The right traction pull rod passes through the right sliding rod and is clamped in the limit hole of the handle tube, and the other end is fixed on the right guide member. The left guide member and the right guide member are both installed in the middle of the inner part of the pull rod outer tube. A rotating driving member is sleeved on the middle and outer part of the pull rod outer tube. The left guide member and the right guide member are both connected to the rotating driving member through sliding pins, and the rotating driving member can drive the left guide member and the right guide member to move left and right through the sliding pins. A rotating handle is sleeved on the outside of the rotating driving member. The rotating handle is snap-connected to the rotating driving member and can be driven by the rotating handle to rotate.

[0007] Preferably, the left sliding rod and the right sliding rod have the same structure. A handle tube card slot is provided on the outside, and an outer tube fixing slot is provided on the inner side of the lower end. A pull rod mounting hole is provided in the middle of the outer tube fixing slot.

[0008] Preferably, the two ends of the pull rod outer tube are provided with outer tube fixing holes, and a middle pin hole is provided in the middle. A middle fixing pin is inserted into the middle pin hole. Outer tube sliding slot holes are symmetrically provided on both sides of the middle pin hole.

[0009] Preferably, the left traction pull rod and the right traction pull rod have the same structure. A traction pull rod pin hole is provided at one end, and a telescopic clamping convex is provided at the other end.

[0010] Preferably, the left guide member and the right guide member have the same structure. A traction pull rod slot is provided at one end, and a sliding pin mounting slot is provided through both sides. The sliding pin mounting slot is communicated with the traction pull rod slot, and the two are perpendicular to each other in direction. A spring mounting slot is provided on the outside of the sliding pin mounting slot.

[0011] Preferably, a return spring is installed in the spring mounting slot. One end of the return spring is connected to the middle fixing pin, and the other end is connected to the sliding pin.

[0012] Preferably, driving member clamping slots are symmetrically provided on the upper and lower sides of the outer side of the rotating driving member. A driving member middle pin slot hole is provided through the middle. Driving member sliding pin slot holes are symmetrically provided on both sides of the driving member middle pin slot hole. The two ends of the sliding pin are clamped in the driving member sliding pin slot holes.

[0013] Preferably, the driving member sliding pin slot hole is in an isosceles triangle shape.

[0014] Preferably, a handle clamping projection is provided on the inner side of the rotating handle. The handle clamping projection is adapted to the driving member clamping groove, and an anti-slip pattern is provided on the outside of the rotating handle.

[0015] The sliding unlocking mechanism for a baby carriage of the present utility model has the following beneficial effects:

[0016] 1. For the sliding unlocking mechanism for a baby carriage of the present utility model, by rotating the rotating handle with one hand, the rotating driving member can be driven, so that the sliding pins clamped on the left guiding member and the right guiding member can move along both sides of the driving member sliding pin slot hole, and further drive the left traction pull rod and the right traction pull rod to perform telescopic activities, so that the telescopic clamping protrusion can retract. In this way, the left sliding rod and the right sliding rod can move up and down on both sides of the handle tube of the carriage. When moving to a suitable height, release the rotating handle, and under the action of the return spring, the telescopic clamping protrusion can be inserted into the corresponding limit hole of the handle tube of the carriage, and the height of the seat clamp can be adjusted;

[0017] 2. The sliding unlocking mechanism for a baby carriage of the present utility model can adjust the height of the seat clamp with one hand, making the present utility model convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the sliding unlocking mechanism for a baby carriage of the present utility model;

[0019] Figure 2 is a schematic diagram of the sliding unlocking mechanism of the sliding unlocking mechanism for a baby carriage of the present utility model;

[0020] Figure 3 is a schematic diagram of the inside of the sliding unlocking mechanism of the sliding unlocking mechanism for a baby carriage of the present utility model;

[0021] Figure 4 is a schematic diagram of the left sliding rod and the right sliding rod of the sliding unlocking mechanism for a baby carriage of the present utility model;

[0022] Figure 5 is a schematic diagram of the outer tube of the pull rod of the sliding unlocking mechanism for a baby carriage of the present utility model;

[0023] Figure 6 is a schematic diagram of the right traction pull rod of the sliding unlocking mechanism for a baby carriage of the present utility model;

[0024] Figure 7 is a schematic diagram of the left guiding member of the sliding unlocking mechanism for a baby carriage of the present utility model;

[0025] Figure 8Schematic structural diagram of the rotating handle of the sliding unlocking mechanism for a baby stroller of the present utility model;

[0026] Figure 9 Schematic structural diagram of the rotating driving member of the sliding unlocking mechanism for a baby stroller of the present utility model;

[0027] Reference numerals: 1, handle tube of the stroller; 2, left sliding rod; 201, handle card slot of the stroller; 202, fixing slot of the outer tube; 203, mounting hole for the traction rod; 3, right sliding rod; 4, outer tube of the pull rod; 401, fixing hole of the outer tube; 402, middle pin hole; 403, sliding groove hole of the outer tube; 5, left traction pull rod; 6, right traction pull rod; 601, pin hole of the traction pull rod; 7, telescopic clamping protrusion; 8, left guiding member; 801, slot for the traction pull rod; 802, mounting slot for the sliding pin; 803, mounting slot for the spring; 9, right guiding member; 10, rotating handle; 1001, clamping protrusion of the handle; 1002, anti-slip pattern; 11, rotating driving member; 1101, clamping slot of the driving member; 1102, middle pin slot hole of the driving member; 1103, sliding pin slot hole of the driving member. Detailed implementation manners

[0028] In order to enable those skilled in the art of this technology to better understand the technical solution of the present utility model, the products of the present utility model will be further described in detail below in conjunction with the embodiments and the accompanying drawings.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element; when an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific implementation manners and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] Such as Figure 1 , Figure 2 and Figure 3As shown in the figure, a sliding unlocking mechanism for a baby carriage includes a U-shaped handlebar tube 1. A sliding unlocking mechanism is provided between the two side tubes of the handlebar tube 1. The sliding unlocking mechanism includes a left sliding rod 2 and a right sliding rod 3. The left sliding rod 2 is slidably installed on the left inner side of the handlebar tube 1, and the right sliding rod 3 is slidably installed on the right inner side of the handlebar tube 1. A pull rod outer tube 4 is provided between the left sliding rod 2 and the right sliding rod 3. The two ends of the pull rod outer tube 4 are fixedly connected to the left sliding rod 2 and the right sliding rod 3 respectively. A left traction pull rod 5 and a right traction pull rod 6 are provided inside the pull rod outer tube 4. One end of the left traction pull rod 5 passes through the left sliding rod 2 and is clamped in the limit hole of the handlebar tube 1, and the other end is fixed to the left guide member 8. The right traction pull rod 6 passes through the right sliding rod 3 and is clamped in the limit hole of the handlebar tube 1, and the other end is fixed to the right guide member 9. The left guide member 8 and the right guide member 9 are both installed in the middle of the inner part of the pull rod outer tube 4. A rotating driving member 11 is sleeved on the middle and outer part of the pull rod outer tube 4. The left guide member 8 and the right guide member 9 are both connected to the rotating driving member 11 through sliding pins, and the rotating driving member 11 can drive the left guide member 8 and the right guide member 9 to move left and right through the sliding pins. A rotating handle 10 is sleeved on the outside of the rotating driving member 11. The rotating handle 10 is snap-connected to the rotating driving member 11 and can be driven by the rotating handle 10 to rotate.

[0032] It should be noted that: in this embodiment, a number of linearly arranged limit holes are provided on the two inner sides of the handlebar tube 1. The left sliding rod 2 and the right sliding rod 3 can be slidably clamped on the two inner sides of the handlebar tube 1, and the telescopic clamping protrusions 7 at the ends of the left traction pull rod 5 and the right traction pull rod 6 are respectively clamped in the limit holes on the two inner sides of the handlebar tube 1. In this way, the user can rotate the rotating handle 10 with one hand, which can drive the rotating driving member 11. Then, the sliding pins clamped on the left guide member 8 and the right guide member 9 can move along the two sides of the sliding pin slot hole 1103 of the driving member, and then drive the left traction pull rod 5 and the right traction pull rod 6 to perform telescopic activities, so that the telescopic clamping protrusion 7 can retract. In this way, the left sliding rod 2 and the right sliding rod 3 can move up and down on both sides of the handlebar tube 1. When moving to a suitable height, release the rotating handle 10. Under the action of the return spring, the telescopic clamping protrusion 7 can be inserted into the corresponding limit hole of the handlebar tube 1, and the height of the seat clamp can be adjusted.

[0033] As Figure 2 and Figure 4 As shown in the figure, the left sliding rod 2 and the right sliding rod 3 have the same structure. A handlebar card slot 201 is provided on the outside, and an outer tube fixing slot 202 is provided on the inner side of the lower end. A traction rod mounting hole 203 is provided in the middle of the outer tube fixing slot 202.

[0034] It should be noted that: the left sliding rod 2 and the right sliding rod 3 are clamped on the two inner sides of the handlebar tube 1 through the handlebar slot 201. The two ends of the outer tube 4 of the pull rod are respectively inserted into the outer tube fixing slots 202 of the left sliding rod 2 and the right sliding rod 3, and the end parts of the left traction pull rod 5 and the right traction pull rod 6 respectively pass through the traction rod mounting holes 203 of the left sliding rod 2 and the right sliding rod 3, and the telescopic clamping protrusion 7 is clamped in the limiting holes on the two inner sides of the handlebar tube 1.

[0035] As Figure 5 shown, the two ends of the outer tube 4 of the pull rod are provided with outer tube fixing holes 401, and the middle part is provided with a middle pin hole 402. A middle fixing pin is inserted into the middle pin hole 402, and outer tube sliding groove holes 403 are symmetrically arranged on both sides of the middle pin hole 402.

[0036] It should be noted that: the two ends of the outer tube 4 of the pull rod are fixedly connected to the left sliding rod 2 and the right sliding rod 3 respectively through the outer tube fixing holes 401. The middle pin hole 402 is in a vertical "0" shape, so that the middle fixing pin can move in the middle pin hole 402. The outer tube sliding groove hole 403 is in a horizontal "0" shape, so that the sliding pins on the left guiding member 8 and the right guiding member 9 can pass through the outer tube sliding groove hole 403 and can move in the outer tube sliding groove hole 403.

[0037] As Figure 3 and Figure 6 shown, the left traction pull rod 5 and the right traction pull rod 6 have the same structure. One end of each of them is provided with a traction pull rod pin hole 601, and the other end is provided with a telescopic clamping protrusion 7.

[0038] It should be noted that: the traction pull rod pin hole 601 is correspondingly arranged with the sliding pin mounting groove 802, so that the sliding pin can sequentially pass through the sliding pin mounting groove 802 and the traction pull rod pin hole 601.

[0039] As Figure 7 shown, the left guiding member 8 and the right guiding member 9 have the same structure. One end of each of them is provided with a traction pull rod slot 801, and sliding pin mounting grooves 802 are provided through both sides thereof. The sliding pin mounting groove 802 is communicated with the traction pull rod slot 801, and the two are perpendicular to each other in direction. A spring mounting groove 803 is arranged outside the sliding pin mounting groove 802. A return spring is installed in the spring mounting groove 803. One end of the return spring is connected to the middle fixing pin, and the other end is connected to the sliding pin.

[0040] It should be noted that: the end parts of the left traction rod 5 and the right traction rod 6 are respectively inserted into the traction rod slots 801 of the left guide member 8 and the right guide member 9, so that the traction rod pin holes 601 and the sliding pin mounting grooves 802 are correspondingly arranged, which is convenient for the installation of the sliding pin. The two ends of the middle fixing pin pass through the middle pin holes 402 of the outer tube 4 of the rod and are clamped in the middle pin slot holes 1102 of the driving member. The reset spring is arranged to facilitate the reset of the left guide member 8 and the right guide member 9.

[0041] As Figure 8 and Figure 9 shown, the outer side of the rotary driving member 11 is provided with driving member clamping grooves 1101 symmetrically arranged up and down. The middle part thereof is provided with a through middle pin slot hole 1102 of the driving member. On both sides of the middle pin slot hole 1102 of the driving member, there are symmetrically arranged through driving member sliding pin slot holes 1103. The two ends of the sliding pin are clamped in the driving member sliding pin slot holes 1103. The driving member sliding pin slot holes 1103 are in an isosceles triangle shape. The inner side of the rotary grip 10 is provided with a grip clamping protrusion 1001, and the grip clamping protrusion 1001 is adapted to the driving member clamping groove 1101. The outer part of the rotary grip 10 is provided with anti-slip lines 1002.

[0042] It should be noted that: the rotary driving member 11 and the rotary grip 10 are fitted and installed through the driving member clamping groove 1101 and the grip clamping protrusion 1001, so that the rotary grip 10 can drive the rotary driving member 11 to rotate synchronously. The driving member sliding pin slot holes 1103 are in an isosceles triangle shape, and the two ends of the sliding pin are clamped in the driving member sliding pin hole slots 1103. In this way, when the rotary grip 10 is rotated to drive the rotary driving member 11 to rotate, the middle end part of the driving member sliding pin slot holes 1103 can slide towards the two side waists, and then the left guide member 8 and the right guide member 9 can be driven by the sliding pin to move towards the middle to compress the reset spring, so that the telescopic clamping protrusion 7 can retract inwards, releasing the restriction of the limiting hole of the handlebar tube 1, and enabling the left sliding rod 2 and the right sliding rod 3 to slide up and down, thus facilitating the adjustment of the height of the seat holder.

[0043] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form; any ordinary technician in the industry can smoothly implement the present invention according to the illustrations in the specification and the above description; however, any slight changes, modifications and equivalent changes evolved by those skilled in the art within the scope of the technical solution of the present invention can utilize the technical content disclosed above, and all are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A sliding unlocking mechanism for a baby carriage, comprising a U-shaped handlebar tube (1), wherein a sliding unlocking mechanism is arranged between two side tubes of the handlebar tube (1), and is characterized in that: The sliding unlocking mechanism includes a left sliding rod (2) and a right sliding rod (3). The left sliding rod (2) is slidably installed on the left inner side of the handlebar tube (1), and the right sliding rod (3) is slidably installed on the right inner side of the handlebar tube (1). A pull rod outer tube (4) is provided between the left sliding rod (2) and the right sliding rod (3). The two ends of the pull rod outer tube (4) are fixedly connected to the left sliding rod (2) and the right sliding rod (3) respectively. A left traction pull rod (5) and a right traction pull rod (6) are provided inside the pull rod outer tube (4). One end of the left traction pull rod (5) passes through the left sliding rod (2) and is clamped in the limit hole of the handlebar tube (1), and the other end is fixed to the left guide member (8). The right traction pull rod (6) passes through the right sliding rod (3) and is clamped in the limit hole of the handlebar tube (1), and the other end is fixed to the right guide member (9). The left guide member (8) and the right guide member (9) are both installed in the middle part inside the pull rod outer tube (4). A rotating driving member (11) is sleeved on the middle and outer part of the pull rod outer tube (4). The left guide member (8) and the right guide member (9) are both connected to the rotating driving member (11) through sliding pins, and the rotating driving member (11) can drive the left guide member (8) and the right guide member (9) to move left and right through the sliding pins. A rotating handle (10) is sleeved on the outside of the rotating driving member (11). The rotating handle (10) is snap-fitted with the rotating driving member (11) and can be driven by the rotating handle (10) to rotate.

2. The sliding unlocking mechanism for a baby carriage according to claim 1, wherein: The left sliding rod (2) and the right sliding rod (3) have the same structure. A handlebar card slot (201) is provided on the outer side thereof, and an outer tube fixing slot (202) is provided on the inner side of the lower end thereof. A pull rod mounting hole (203) is provided in the middle of the outer tube fixing slot (202).

3. The sliding unlocking mechanism for a baby stroller according to claim 1, wherein: The two ends of the pull rod outer tube (4) are provided with outer tube fixing holes (401), and a middle pin hole (402) is provided in the middle thereof. A middle fixing pin is inserted into the middle pin hole (402). Outer tube sliding slot holes (403) are symmetrically provided on both sides of the middle pin hole (402).

4. The sliding unlocking mechanism for a baby carriage according to claim 1, wherein: The left traction pull rod (5) and the right traction pull rod (6) have the same structure. Pull rod pin holes (601) are provided at one end thereof, and telescopic clamping protrusions (7) are provided at the other end.

5. The sliding unlocking mechanism for a baby carriage according to claim 1, characterized in that: The left guide member (8) and the right guide member (9) have the same structure. Traction pull rod slots (801) are provided at one end thereof, and sliding pin mounting slots (802) are provided through both sides thereof. The sliding pin mounting slots (802) are communicated with the traction pull rod slots (801), and the two are perpendicular to each other in direction. A spring mounting slot (803) is provided on the outside of the sliding pin mounting slot (802).

6. The sliding unlocking mechanism for a baby carriage according to claim 5, wherein: A return spring is installed in the spring mounting slot (803). One end of the return spring is connected to the middle fixing pin, and the other end is connected to the sliding pin.

7. The sliding unlocking mechanism for a baby stroller according to claim 1, characterized in that: The outer side of the rotation driving member (11) is provided with driving member mounting grooves (1101) symmetrically arranged up and down, and a driving member middle pin slot hole (1102) penetrating through the middle thereof. On both sides of the driving member middle pin slot hole (1102), driving member sliding pin slot holes (1103) penetrating through are symmetrically arranged, and both ends of the sliding pin are mounted in the driving member sliding pin slot holes (1103).

8. The sliding unlocking mechanism for a baby carriage according to claim 7, wherein: The driving member sliding pin slot holes (1103) are in an isosceles triangle shape.

9. The sliding unlocking mechanism for a baby carriage according to claim 8, wherein: The inner side of the rotation grip (10) is provided with a grip mounting protrusion (1001), the grip mounting protrusion (1001) is adapted to the driving member mounting groove (1101), and the outer part of the rotation grip (10) is provided with anti-slip lines (1002).

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