Baby stroller

Abstract

A child stroller comprises a stroller frame, the left side portion and the right side portion of the stroller frame are respectively provided with a seat support, each seat support is provided with a sliding seat capable of sliding and a sliding seat locking mechanism used for locking the sliding seat on the corresponding seat support, a seat of the child stroller is installed between the sliding seats on the two sides, and operation keys are arranged on the sliding seats in an elastic moving mode. When the operation key is pressed down by overcoming the elastic force, the sliding seat lock mechanism is controlled to be unlocked, the sliding seat is further provided with an unlocking keeping structure which can be clamped with the pressed operation key to keep the state of the operation key, and when the sliding seat slides relative to the seat support, the unlocking keeping structure releases the operation key. An unlocking keeping structure is arranged on the sliding seat on each side, when an operation key used for unlocking is pressed, the unlocking keeping structure is clamped with the operation key so that the operation key cannot be reset, the operation key is in an unlocking pressing hovering state, the sliding seat locking mechanism controlled by the operation key is kept at an unlocking position, and after the operation keys on the two sides are pressed down respectively, the unlocking keeping structure can be unlocked. And a user can pull up or press down for displacement only by one hand, so that the operation of the user is convenient.

Description

Technical Field

[0001] This utility model relates to a children's stroller. Background Technology

[0002] A child stroller, such as the one disclosed in patent application CN222202662U, has an upper connecting position and a lower connecting position on the upper part of its frame, and a seat is detachably connected to the upper connecting position or the lower connecting position. The seat includes a sliding seat that can slide along the frame and connect to the lower connecting position or the upper connecting position after sliding, and the sliding seat is also provided with a locking structure.

[0003] The seat has sliding seats on both sides. To move the seat between the upper and lower connection points on the frame, you need to use both hands to unlock the locking mechanisms on the left and right sides respectively, and then use both hands to simultaneously grip the corresponding sliding seats to apply force and move the seat assembly up or down. Because the frame is quite large when unfolded, it is inconvenient for the user to simultaneously unlock the locking mechanisms on the sliding seats and then move the seat assembly up or down, whether the user is at the rear or front of the frame.

[0004] Therefore, it is necessary to provide a stroller where the corresponding side sliding seat lock mechanism can remain unlocked when the operation buttons on both sides are pressed, allowing the seat to be moved up or down with just one hand, making it more convenient for users to operate. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a children's stroller.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a stroller includes a stroller frame with seat supports on both the left and right sides. Each seat support is provided with a sliding seat and a sliding seat locking mechanism for locking the sliding seat onto the corresponding seat support. The stroller seat is installed between the two sliding seats. An operation button is elastically movable on the sliding seat. When the operation button is pressed against the elastic force, the sliding seat locking mechanism is unlocked. The sliding seat is also provided with an unlocking and retaining structure that can engage with the pressed operation button to maintain its state. When the sliding seat slides relative to the seat support, the unlocking and retaining structure releases the operation button.

[0007] In some embodiments, the unlocking and retaining structure includes a pause button resiliently movably disposed on the slide and capable of engaging with the pressed operation key; a positioning hole formed in the base bracket; and a beveled locking head button resiliently movably disposed on the slide and engaging with the positioning hole. When the slide slides relative to the base bracket, the beveled locking head button retracts under the action of the bevel and exits the positioning hole, thereby causing the pause button to release the operation key. The resilient movability includes rotational or sliding movement, achieving displacement by overcoming elastic force during pressing, and having a tendency to return to its original position after the external force is released.

[0008] In some embodiments, the unlocking and retaining structure includes a positioning hole on the bracket, a beveled locking key that slides linearly on the slide block, and a first elastic element on the slide block such that the beveled locking key springs into the positioning hole. The sliding direction of the beveled locking key is consistent with or parallel to the center line of the positioning hole. The unlocking and retaining structure also includes a pause key that slides linearly on the slide block and a second elastic element on the slide block such that the pause key has a tendency to move towards the operation key. The sliding direction of the pause key is perpendicular to the sliding direction of the beveled locking key.

[0009] In some embodiments, when the operation key is pressed, the pause key moves elastically and blocks the backward path of the inclined locking head key. A push structure is provided between the inclined locking head key and the pause key to drive the pause key to move backward and disengage from the operation key when the inclined locking head key moves backward.

[0010] In some embodiments, the actuation structure includes a guide ramp disposed on at least one of the ramp lock key and the pause key, wherein the ramp lock key drives the pause key to retract via the guide ramp during the retraction of the ramp lock key.

[0011] In some embodiments, the operation key is elastically rotatably mounted on the slide about a first axis, the axis of the first axis extends in the left-right direction, the button portion of the operation key is located above the first axis, the operation key is located below the first axis to form a drive portion, a recess is provided on the end face of the drive portion, and a third elastic element is provided between the operation key and the slide to make the button portion pop out. When the button portion is pressed, the end plug of the pause key pops into the recess.

[0012] In some embodiments, the slide lock mechanism includes a lock hole disposed on the seat bracket and a lock tongue that slides linearly on the slide. The sliding direction of the lock tongue is parallel to the sliding direction of the inclined lock head key. The lock tongue is mounted on the drive unit and can both slide and rotate.

[0013] In some embodiments, the slide locking mechanism has at least two locking holes that lock the slide onto the corresponding support bracket, which are distributed along a straight line on the support bracket. The support bracket has the same number of positioning holes as the locking holes, and each positioning hole is equidistant from the other side of the locking hole.

[0014] In some embodiments, the seat support is a push rod frame of a trolley frame.

[0015] In some embodiments, the left and right slides are symmetrically arranged, each slide having a fixed mounting socket on its inner side, and the left and right sides of the seat having connectors that can be detachably installed on the corresponding mounting sockets.

[0016] The scope of this utility model is not limited to technical solutions formed by specific combinations of the above-mentioned technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-mentioned technical features or their equivalent features. For example, technical solutions formed by substituting the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

[0017] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This utility model provides a child stroller with an unlocking and retaining structure on each side slide. When the operation button for unlocking is pressed, the unlocking and retaining structure engages with the operation button to prevent it from resetting. When the operation button is in the unlocking and holding state, the slide locking mechanism controlled by the operation button remains in the unlocked position. After pressing the operation buttons on both sides respectively, it can be pulled up or pressed down to move with just one hand, which is convenient for the user to operate. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure in which the seat is mounted on the trolley frame;

[0019] Figure 2 This is a schematic diagram of the trolley frame.

[0020] Figure 3 This is a cross-sectional structural diagram of the slide block and the seat support (the slide block locking mechanism is in the locked position).

[0021] Figure 4 This is a cross-sectional structural diagram of the slide block and the seat support (the slide block locking mechanism is in the unlocked position).

[0022] The components are: 1. Seat bracket; 11. Lock hole; 12. Positioning hole; 2. Slide; 21. Mounting socket; 3. Operation key; 31. Button part; 32. Drive part; 33. End face; 34. Recess; 4. Angled locking head key; 41. Guide ramp; 5. Pause key; 51. Guide ramp; 52. Plug; 6. Locking tongue; 7. First elastic element; 8. Second elastic element; 9. Third elastic element; 100. Seat. Detailed Implementation

[0023] like Figure 1 , 2 As shown, a stroller includes a stroller frame, a front wheel assembly disposed at the front of the bottom of the stroller frame, a rear wheel assembly disposed at the rear of the bottom of the stroller frame, and a seat 100 disposed between the side supports on the left and right sides of the stroller frame.

[0024] Each side support of the trolley frame has a seat support 1, and each seat support 1 is provided with a sliding slide 2 and a slide lock mechanism for locking the slide 2 onto the corresponding seat support 1. The two slides 2 are symmetrically arranged, and each slide 2 has a fixed mounting socket 21 on its inner side. The seat 100 is installed between the two slides 2. The left and right sides of the seat 100 have connectors that can be detachably installed on the corresponding mounting sockets 21. In this embodiment, the seat support 1 is a push rod frame that is tilted on the trolley frame. After the slide lock mechanism is unlocked, the slide 2 can be moved between multiple different height positions on the push rod frame. Other than that, not shown in the figure, the slide 2 moves after being unlocked to make the folded volume smaller.

[0025] In this embodiment, each sliding seat locking mechanism has the function of remaining in the unlocked position after unlocking. After both sliding seat locking mechanisms are unlocked, the user can easily pull up or press down to move the seat 100 by simply holding the top of the backrest with one hand, making it convenient for the user to operate. Figure 1 , 2 As shown, the detailed structure is as follows:

[0026] The seat bracket 1 is a push rod bracket, including an outer tube on the outside and an inner rod fixed on the inside. The slide block 2 is slidably fitted onto the inner rod. The slide block locking mechanism includes at least two locking holes 11 on the inner rod of the push rod bracket in the seat bracket 1, and a locking tongue 6 slidably mounted on the slide block 2. The at least two locking holes 11 are distributed along the straight direction of the inner rod of the push rod bracket on the seat bracket 1, and the sliding direction of the locking tongue 6 is perpendicular to the straight direction of the inner rod of the push rod bracket. When the slide block locking mechanism is in the locked position, the locking tongue 6 is inserted into a corresponding locking hole 11; when in the unlocked position, the locking tongue 6 is disengaged from all locking holes 11.

[0027] An operation key 3 is movably mounted on the slide 2 and reset by an elastic element. In this embodiment, the operation key 3 is rotatably mounted on the slide 2 around a first axis. The axis extends in the left-right direction. The part of the operation key 3 above the first axis is the button part 31, and the part below the first axis is the drive part 32. A recess 34 is provided on the lower end face 33 of the drive part 32. A third elastic element 9 is provided between the button part 31 and the slide 2 to make the button part 31 pop out. When the button part 31 is pressed to one side against the third elastic element 9, the drive part 32 moves to the other side. The locking tongue 6 is both slidable and rotatable mounted on the drive part 32. The locking tongue 6 disengages from the corresponding lock hole 11 under the movement of the drive part 32, thereby controlling the unlocking of the slide lock mechanism.

[0028] The slide 2 is also equipped with an unlocking and retaining structure that can engage with the pressed operation key 3 to maintain its state. When the slide 2 slides relative to the support bracket 1, the unlocking and retaining structure can release the operation key 3.

[0029] The unlocking and retaining structure includes at least two positioning holes 12 on the base bracket 1, a sloping locking head key 4 that slides linearly on the slide block 2, and a first elastic element 7 on the slide block 2 such that the sloping locking head key 4 springs into the positioning hole 12. The sliding direction of the sloping locking head key 4 is parallel to the sliding direction of the locking tongue 6 and is consistent with or parallel to the center line direction of the positioning hole 12. The base bracket 1 has the same number of positioning holes 12 as the lock holes 11, and each positioning hole 12 is equidistant and located below the lock holes 11. When the locking tongue 6 of the slide block locking mechanism is inserted into the corresponding lock hole 11, locking the position between the slide block 2 and the base bracket 1, the sloping locking head key 4 is inserted into the corresponding positioning hole 12 below the lock hole 11.

[0030] The unlocking and holding structure also includes a pause button 5 that slides along a straight line on the slide block 2, and a second elastic element 8 that is set on the slide block 2 so that the pause button 5 has an upward tendency to move in the direction of the operation button 3. The sliding direction of the pause button 5 is perpendicular to the sliding direction of the inclined lock head button 4.

[0031] When operation key 3 is pressed, drive unit 32 moves to the other side, and locking tongue 6 is both slidable and rotatable on drive unit 32. Locking tongue 6 disengages from the corresponding lock hole 11 under the movement of drive unit 32. Pause key 5 moves under the action of second elastic element 8, and end plug 52 of pause key 5 springs into recess 34, preventing operation key 3 from resetting. Operation key 3 is in the unlocked press-and-hold state, and the slide lock mechanism is held in the unlocked position. At the same time, it blocks the backward path of inclined lock head key 4 so that subsequent reset can be controlled by inclined lock head key 4.

[0032] A push mechanism is provided between the inclined lock key 4 and the pause key 5 to drive the pause key 5 to retract and disengage from the operation key 3 when the inclined lock key 4 is retracted. The push mechanism includes a guide ramp 41 on the inclined lock key 4 and a guide ramp 51 on the pause key 5.

[0033] When both operation buttons 3 are pressed, both operation buttons 3 will automatically remain pressed, and both slides 2 will be unlocked relative to the seat bracket 1 on the same side. The slide locking mechanism will remain in the unlocked position. Simply hold the top of the backrest of the seat 100 with one hand and pull it up or press it down. Each slide 2 will slide relative to the seat bracket 1. The inclined locking head button 4 will be squeezed and retracted under the action of the inclined end, thus exiting the positioning hole 12. When the beveled lock head key 4 retracts, it drives the pause key 5 to retract via the two guide ramps 41 and 51, thereby causing the pause key 5 to release the operation key 3. The operation key 3 tends to reset under the action of the third elastic element 9. At this time, the slide 2 continues to move along the seat bracket 1 until the lock tongue 6 corresponds to the next lock hole 11. The operation key 3 resets under the action of the third elastic element 9, and the lock tongue 6 enters the lock hole 11 and locks under the push of the operation key 3. The beveled lock head key 4 is inserted into the positioning hole 12 below the lock hole 11 under the action of elasticity. The pause key 5 abuts against the lower end face 33 of the drive part 32 under the action of the second elastic element 8.

[0034] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A child stroller, comprising a stroller frame with seat supports (1) on both sides, each of the seat supports (1) is provided with a slide seat (2) capable of sliding and a slide seat lock mechanism for locking the slide seat (2) on the corresponding seat support (1), and a seat (100) of the child stroller is installed between the slide seats (2) on both sides, characterized in that: an operation key (3) is elastically movably arranged on the slide seat (2), and the slide seat lock mechanism is unlocked after the operation key (3) is pressed against the elastic force; an unlock holding structure capable of engaging with the pressed operation key (3) to maintain the state thereof is further arranged on the slide seat (2), and the unlock holding structure releases the operation key (3) when the slide seat (2) slides relative to the seat support (1). The unlock holding structure comprises a pause key (5) capable of elastically moving and engaging with the pressed operation key (3), a positioning hole (12) opened on the seat support (1), and a bevel lock head key (4) capable of elastically moving and being inserted into the positioning hole (12) on the slide seat (2), and the bevel lock head key (4) retreats and exits the positioning hole (12) under the action of the bevel when the slide seat (2) slides relative to the seat support (1), thereby prompting the pause key (5) to release the operation key (3). The unlock holding structure comprises a positioning hole (12) opened on the seat support (1), a bevel lock head key (4) linearly slidingly arranged on the slide seat (2), and a first elastic member (7) arranged on the slide seat (2) to enable the bevel lock head key (4) to be elastically arranged in the positioning hole (12), and the sliding direction of the bevel lock head key (4) is consistent with or parallel to the center line direction of the positioning hole (12).

2. The stroller of claim 1, wherein: The unlock holding structure further comprises a pause key (5) linearly slidingly arranged on the slide seat (2), and a second elastic member (8) arranged on the slide seat (2) to enable the pause key (5) to have a moving trend towards the operation key (3), and the sliding direction of the pause key (5) is perpendicular to the sliding direction of the bevel lock head key (4).

3. The stroller of claim 1, wherein: When the operation key (3) is pressed, the pause key (5) elastically moves and blocks the retreat path of the bevel lock head key (4), and a pushing structure is arranged between the bevel lock head key (4) and the pause key (5) to drive the pause key (5) to retreat and disengage from the operation key (3) when the bevel lock head key (4) retreats. The pushing structure comprises a guide slope (41, 51) arranged on at least one of the bevel lock head key (4) and the pause key (5), and the bevel lock head key (4) drives the pause key (5) to retreat through the guide slope (41, 51) during the retreat of the bevel lock head key (4).

4. The stroller of claim 2 or 3, wherein: ​ 5. The stroller of claim 4, wherein: ​ 6. The stroller of claim 2 or 3, wherein: The operation key (3) is elastically rotatable around a first shaft arranged on the slide (2), the first shaft axis extends along the left-right direction, the button part (31) of the operation key (3) is located above the first shaft, the operation key (3) is located below the first shaft to form a driving part (32), a recess (34) is arranged on the end surface (33) of the driving part (32), a third elastic member (9) is arranged between the operation key (3) and the slide (2) to make the button part (31) pop out, when the button part (31) is pressed, the end plug (52) of the pause key (5) pops into the recess (34).

7. The stroller of claim 6, wherein: The slide lock mechanism includes a lock hole (11) arranged on the seat support (1) and a lock tongue (6) arranged on the slide (2) in a linear sliding manner, the sliding direction of the lock tongue (6) is parallel to the sliding direction of the bevel lock head key (4), and the lock tongue (6) is both sliding and rotatably installed on the driving part (32).

8. The stroller of claim 7, wherein: The slide lock mechanism can lock the slide (2) on the corresponding lock hole (11) of the seat support (1), the lock hole (11) has at least two, is distributed on the seat support (1) along the linear direction, the seat support (1) has a number of positioning holes (12) which is the same as that of the lock hole (11), and each positioning hole (12) is equidistantly arranged below the lock hole (11).

9. The stroller of claim 1, wherein: The seat support (1) is a push rod frame of a stroller.

10. The stroller of claim 1, wherein: The left and right slides (2) are symmetrically arranged, each slide (2) has a fixed mounting socket (21) on the inner side, and the left and right sides of the seat (100) respectively have plug-in heads which are detachably mounted on the corresponding mounting sockets (21).

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