CN209467184U - An unlocking device for a folding children's stroller and the folding children's stroller - Google Patents

Abstract

The utility model discloses a kind of tripper of folding children's cart and the folding children's carts, it including the locked groove being provided on the second rod piece, the rotary buckle that is rotatably connected on the first rod piece and can separatably be connected with locked groove, the lock pin being movably attached between third rod piece and the first rod piece, is slidably disposed on the first rod piece and lock pin can be made to slide by own slip to release the sliding block of the locking between the first rod piece and the second rod piece, sliding block makes rotary buckle be detached from locked groove while sliding.The utility model drives rotary buckle and lock pin to move at the same time, so that two groups of rod pieces be enable to unlock simultaneously by sliding block, it is applied in folding children's cart, handrail or other a certain rod pieces can then be unlocked while unlocking vehicle frame, simplify folding step, it is easy to operate.

Description

An unlocking device for a folding children's stroller and the folding children's stroller

technical field

The utility model relates to an unlocking device of a folding children's stroller and the folding children's stroller.

Background technique

The folding stroller includes a frame that can be folded and opened, a seat attached to the frame, a wheel attached to the bottom of the frame, and a locking structure that locks the frame in an open state. During the folding process of the stroller, each rod of the frame rotates or moves, so that the whole vehicle is folded, and the locking structure is generally arranged at the joint where the rods of the frame are connected. The armrests of some folding strollers do not participate in the folding, while other armrests can participate in the folding of the stroller, and the armrest locking and unlocking requires a single step to operate, and cannot be unlocked at the same time as the frame.

SUMMARY OF THE INVENTION

In order to solve the above problems, the purpose of the present invention is to provide an unlocking device for a folding stroller and the folding stroller.

In order to achieve the above purpose, the technical solution adopted in the present invention is: an unlocking device for a folding baby stroller, the folding baby stroller at least includes a first rod, a second rod and a third rod, and the unlocking device includes a A lock groove on the second rod, a rotary fastener rotatably connected to the first rod and detachably connected with the lock groove, a lock movably connected between the third rod and the first rod The pin is slidably arranged on the first rod and can move the lock pin by sliding itself to release the locking relationship between the first rod and the third rod. The slider slides while rotating the fastener out of the lock slot,

When the unlocking device is in the locked state, the slider is in the locked position, the rotary fastener is connected with the lock groove, and the lock pin is connected with the slider. When the unlocking device is in the unlocked state, the slider slides to the unlocked position, and the rotary fastener It is disengaged from the lock groove, and the lock pin is disengaged from the slider.

Further, the folding stroller also includes a fourth rod that is rotatably connected to the first rod, and the fourth rod is provided with a slider that is connected to the slider and rotates relative to the first rod through the fourth rod. And the traction cable that pulls the slider slides from the locked position to the unlocked position.

Further, a first elastic member for applying a force to the slider to slide from the unlocking position to the locking position is disposed in the first rod member.

Further, the slider has a first inclined surface that can be in sliding contact with the rotary fastener to push the rotary fastener to rotate to make it disengage from the lock groove, and the slider has a first inclined surface that can slide in contact with the rotary fastener and push the rotary fastener to rotate to make it rotate. The second slope connected to the lock slot.

Furthermore, one end of the rotary fastener has a lock hook that can be detachably connected with the lock groove, and the other end of the rotary fastener is matched with the first inclined surface and the second inclined surface.

Further, the third rod is provided with a second elastic member which exerts a force on the lock pin to move and is connected with the slider.

Further, the slider is provided with a groove for accommodating the lock pin, and one side wall of the groove is an inclined surface, forming a third inclined surface that can slide in contact with the lock pin to push the lock pin out of the groove.

Further, the third rod is provided with a lock hole for the lock pin to move. When the unlocking device is in the locked state, one end of the lock pin extends out of the lock hole and is connected with the slider. When the unlocking device is in the unlocked state, the lock is in the unlocked state. One end of the pin is retracted into the lock hole and disengaged from the slider.

Further, the first rod is movably connected with the second rod, the third rod is rotatably connected with the second rod, and when the unlocking device is in a locked state, the first rod and the second rod are rotatably connected. and the relative positions between the third rods are all locked, and when the unlocking device is in the unlocked state, the first rod, the second rod, and the third rod are all released.

The utility model also provides another technical solution: a folding stroller with the above-mentioned unlocking device, which comprises an upper push rod, a lower push rod whose upper part is rotatably connected with the upper push rod, and a movable push rod with the lower push rod. a front bracket connected to the ground, a handrail rotatably connected to the upper part of the rear part and the upper part of the front bracket, a rear bracket rotatably connected to the lower push rod, a support rod rotatably connected to the upper part and the front bracket and the lower part to the rear bracket, Wheels are connected to the bottom of the front bracket and the bottom of the rear bracket, the lower push rod is the above-mentioned first rod, the front bracket is the above-mentioned second rod, and the handrail is the above-mentioned third rod.

Due to the adoption of the above technical solutions, the present invention provides an unlocking device for a foldable stroller and the foldable stroller. The sliding block drives the rotary fastener and the lock pin to act simultaneously, so that the two sets of rods can be unlocked at the same time, and the two sets of rods can be unlocked simultaneously. When applied to a folding children's stroller, the armrest or some other rod can be unlocked at the same time as the frame is unlocked, the folding steps are simplified, and the operation is very convenient.

Description of drawings

1 of the present invention is an unlocking device for a folding stroller and a schematic structural diagram of the folding stroller, wherein the unlocking device is in a locked state and the folding stroller is in an open state;

FIG. 2 is a partial view of A of FIG. 1 showing the structure of an angle of the unlocking device;

FIG. 3 is a partial view of B of FIG. 1 showing the structure of the unlocking device from another angle;

4 is a schematic diagram of an unlocking device for a folding stroller and a structural schematic diagram of the folding stroller according to the present invention, wherein the unlocking device is in an unlocked state, and the folding stroller is in the process of folding;

FIG. 5 is a partial view of FIG. 4 A showing the structure of an angle of the unlocking device;

FIG. 6 is a partial view of B of FIG. 4 showing the structure of the unlocking device from another angle;

FIG. 7 is a schematic structural diagram of the folding stroller in the utility model further folded on the basis of FIG. 4;

FIG. 8 is a schematic structural diagram of the folding baby stroller in the utility model in a folded state.

The symbols in the figure are:

10. Slider; 101. First slope; 102, Second slope; 103, Third slope; 11. Rotating fastener; 111, Lock hook; 12, Lock pin; 121, Step; 13, First elastic member; 14. The second elastic member; 15. The lock slot;

20, wheels; 21, lower push rod; 211, L-shaped part; 22, front bracket; 221, plastic base; 23, armrest; 24, upper push rod; 25, rear bracket; 26, support rod.

Detailed ways

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

As can be seen from the schematic structural diagrams of FIG. 1 to FIG. 8 , this embodiment provides an unlocking device for a foldable stroller. The folding stroller includes at least a first rod, a second rod and a third rod. Specifically, the second rod has a plastic base 221, and more specifically, the plastic base 221 is located at one end of the second rod.

The unlocking device includes a lock slot 15 opened on the second lever, a rotary fastener 11 rotatably connected to the first lever and detachably connected to the lock slot 15, and movably connected to the third lever and the lock slot 15. The lock pin 12 between the first rods, the slider 10 slidably arranged on the first rod, the slider 10 can make the lock pin 12 to contact the lock pin 12 between the first rod and the third rod by sliding itself. Locking relationship, at the same time, the rotary fastener 11 is disengaged from the locking groove 15. It should be noted that, the above-mentioned locking groove 15 can be directly formed on the rod body of the second rod member, or can be formed on the plastic base 221 as in the present embodiment.

When the unlocking device is in the locked state, the slider 10 is in the locked position, the rotary fastener 11 is connected with the lock groove 15, and the lock pin 12 is connected with the slider 10. When the unlocking device is in the unlocked state, the slider 10 slides to In the unlocking position, the rotary fastener 11 is disengaged from the locking groove 15, and the locking pin 12 is disengaged from the slider 10 or the third rod.

In this embodiment, the first rod is movably connected to the second rod, and the third rod is rotatably connected to the second rod. Specifically, the first rod can be movably passed through the plastic base. The seat 221 is moved and connected with the second rod, and the end of the third rod is connected with the plastic base 221 . When the unlocking device is in the locked state, the relative positions among the first rod, the second rod, and the third rod are all locked. When the unlocking device is in the unlocked state, the first rod, the second rod, the third rod are locked. All three rods are released.

In a more preferred embodiment, the folding stroller further comprises a fourth rod rotatably connected with the first rod, and the fourth rod is provided with a fourth rod which is connected with the slider 10 and passes through the fourth rod. The relative rotation of the member and the first rod pulls the sliding block 10 to slide from the locking position to the pulling cable of the unlocking position. The first rod is provided with a first elastic member 13 that exerts a force on the slider 10 to slide from the unlocked position to the locked position. The first elastic member 13 in this embodiment is a compression spring.

As shown in FIG. 3 and FIG. 6 , the slider 10 has a first inclined surface 101 capable of slidingly contacting with the rotary fastener 11 to push the rotary fastener 11 to rotate and disengage it from the locking groove 15 . The slider 10 also has a second inclined surface 102 that can be in sliding contact with the rotary fastener 11 to push the rotary fastener 11 to rotate to connect it with the locking groove 15 . When the traction cable pulls the slider 10 to slide, the first inclined surface 101 is in sliding contact with the rotating fastener 11 , and when the first elastic member 13 pushes the slider 10 to slide, the second inclined surface 102 is in sliding contact with the rotating fastener 11 .

As shown in FIG. 3 and FIG. 6 , one end of the rotary fastener 11 has a lock hook 111 that can be detachably connected with the lock groove 15 , and the other end of the rotary fastener 11 is connected to the first inclined surface 101 and the second inclined surface above. 102 fits.

The above-mentioned sliding block 10 and the rotating fastener 11 are both arranged inside the first rod.

The sliding block 10 and the locking pin 12 are detachably connected. As shown in FIG. 2 and FIG. 5 , the sliding block 10 has a groove (not shown in the drawings), and one side wall of the groove is formed to be able to The lock pin 12 is in sliding contact with the lock pin 12 to push the lock pin 12 away from the third inclined surface 103 of the groove. The lock pin 12 has a step 121 which is in sliding contact with the third inclined surface 103 . The third rod is provided with a second elastic member 14 which exerts force on the lock pin 12 to move it and is connected with the groove on the slider 10 . The second elastic member 14 in this embodiment is a compression spring. The above-mentioned step 121 is preferably located at one end of the lock pin 12 .

Preferably, a lock hole (not shown in the drawings) for the lock pin 12 to move is provided on the third rod. When the unlocking device is in a locked state, one end of the lock pin 12 protrudes from the lock hole to be in contact with the slider 10 . For connection, when the unlocking device is in the unlocking state, one end of the locking pin 12 is retracted into the locking hole and disengaged from the slider 10 . More preferably, the above-mentioned second elastic member 14 is disposed in the lock hole, and the second elastic member abuts against the other end of the lock pin 12 . It should be noted that the second lever has an avoidance structure. When the unlocking device is locked, the second lever will not interfere with the connection between the lock pin 12 and the slider 10. When the unlocking device is unlocked, the third lever The locking member and the second rod can rotate freely. When the two rotate relative to each other, one end of the locking pin 12 can slide against the second rod, which will not affect the relative rotation between the two. When rotated to a certain relative position, under the action of the second elastic member 14, one end of the lock pin 12 passes through the avoidance structure to connect with the slider 10, and the unlocking device locks.

As shown in Figure 1, Figure 4 and Figures 7-8, the present embodiment provides a specific structure of a folding stroller, including a push rod, a front bracket 22 movably connected to the push rod, The armrest 23 rotatably connected to the upper part of the front bracket 22 at the rear, the rear bracket 25 rotatably connected to the push rod, the support rod 26 whose upper part is rotatably connected to the front bracket 22 and the lower part is rotatably connected to the rear bracket 25, the front bracket Wheels 20 are connected to the bottom of 22 and the bottom of rear bracket 25 . The push rod is the first rod, the front bracket 22 is the second rod, and the handrail 23 is the third rod. After the folding stroller is folded, the folding stroller slides down relative to the front bracket 22 and the front bracket 22 and the rear bracket 25. move closer. The folding stroller has the above-mentioned unlocking device.

Specifically, the above-mentioned push rod includes an upper push rod 24 and a lower push rod 21 whose upper part is rotatably connected to the upper push rod 24 , and the lower push rod 21 is movably connected to the front bracket 22 . In this embodiment, the lower part of the lower push rod 21 has an L-shaped part 211 bent backward, and the upper part of the rear bracket 25 is rotatably connected with the L-shaped part 211 . According to the structure of the folding stroller, the first rod is the lower push rod 21 , and the fourth rod is the upper push rod 24 . The above-mentioned unlocking devices are provided on the left and right sides of the cart.

Taking the structure of the above-mentioned folding stroller as an example to illustrate the working principle of the unlocking device:

When the cart is folded, the upper push rod 24 is rotated forward and downward, so that the upper push rod 24 and the downward push rod 21 are moved closer, and the slider 10 inside the lower push rod 21 is driven to slide upward by the traction cable. When the slider 10 slides upward , the first inclined surface 101 pushes the rotating fastener 11 to rotate, so that the locking hook 111 is separated from the locking groove 15 on the plastic base 221, thereby unlocking the space between the lower push rod 21 and the front bracket 22. At the same time, the third inclined surface 103 Push the lock pin 12 to move, so that the lock pin 12 exits the groove on the slider 10, thereby unlocking the space between the armrest 23 and the lower push rod 21; after the unlocking device is unlocked, push the lower push rod 21 downward and rotate it backward and downward The lower push rod 21 and the upper push rod 24, the lower push rod 21 moves down along the front bracket 22, the lower push rod 21, the upper push rod 24, the front bracket 23 and the support rod 26 move closer to the rear bracket 25, and the armrest 23 can pass itself The front bracket 22 is moved closer to the front bracket 22 by gravity rotation or manual rotation operation until all the rods are completely closed to complete the folding of the whole vehicle. When the cart is opened, contrary to the above steps, the rods move relatively and unfold relatively. When the lower push rod 21 moves upward to the position corresponding to the lock hook 111 and the lock groove 15 on the plastic base 221, the first elastic member Under the action of 13, the slider 10 slides down, and the second inclined surface 102 pushes the rotary fastener 11 to rotate, so that the lock hook 111 is connected with the lock groove 15, and the lower push rod 21 and the front bracket 22 are locked. , the lock pin 12 corresponds to the position of the groove on the slider 10 , under the action of the second elastic member 14 , the lock pin 12 moves and inserts into the groove to lock the handrail 23 .

The utility model relates to an unlocking device for a folding children's stroller. The sliding block drives the rotating fastener and the lock pin to act simultaneously, so that the two sets of rods can be unlocked at the same time. When the device is applied to the folding children's stroller, it can be unlocked at the same time. The armrest or some other rod is unlocked at the same time as the frame, which simplifies the folding steps and makes the operation very convenient.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the technology to understand the content of the present invention and implement accordingly, and cannot limit the protection scope of the present invention with this. All equivalent changes or modifications made according to the spirit of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. a kind of tripper of folding children's cart, the folding children's cart includes at least the first rod piece, the second rod piece With third rod piece, it is characterised in that: the tripper includes the locked groove (15) being provided on second rod piece, rotation company It connects the rotary buckle (11) that can be connected on first rod piece and separatably with the locked groove (15), movably connect Connect the lock pin (12) between the third rod piece and the first rod piece, be slidably disposed on the first rod piece and can by from Body sliding keeps the lock pin (12) mobile to release the sliding block locked between the first rod piece and third rod piece (10), the sliding block (10) rotary buckle (11) is made to be detached from locked groove (15) while sliding,

When the tripper is in the lock state, the sliding block (10) is in the locked position, the rotary buckle (11) with Locked groove (15) is connected, and the lock pin (12) is connected with the sliding block (10), when the tripper is in the unlocked state When, the sliding block (10) slides into unlocked position, and the rotary buckle (11) is separated with locked groove (15), and the lock pin (12) It is separated with the sliding block (10) or third rod piece.

2. a kind of tripper of folding children's cart according to claim 1, it is characterised in that: the folding children's Cart further includes the 4th rod piece of connection of rotating with first rod piece, is provided with and the sliding block (10) on the 4th rod piece It is connected and affects the sliding block (10) to slide into from latched position by the relative rotation of the 4th rod piece and the first rod piece The hauling rope of unlocked position.

3. a kind of tripper of folding children's cart according to claim 1, it is characterised in that: first rod piece Inside it is provided with the first elastic component (13) for making it slide into from unlocked position latched position the sliding block (10) applied force.

4. a kind of tripper of folding children's cart according to claim 1, it is characterised in that: the sliding block (10) It is upper have can with the rotary buckle (11) phase sliding contact and push rotary buckle (11) rotation to be allowed to be detached from locked groove (15) The first inclined-plane (101), have on the sliding block (10) can with the rotary buckle (11) phase sliding contact and push rotation Turn fastener (11) rotation and is allowed to the second inclined-plane (102) connecting with locked groove (15).

5. a kind of tripper of folding children's cart according to claim 4, it is characterised in that: the rotary buckle (11) one end has the lock hook (111) that can be separatably connected with the locked groove (15), the rotary buckle (11) The other end and first inclined-plane (101) and the second inclined-plane (102) cooperation.

6. a kind of tripper of folding children's cart according to claim 1, it is characterised in that: the third rod piece On be provided with the second elastic component (14) for moving it to the lock pin (12) applied force and being connected with the sliding block (10).

7. a kind of tripper of folding children's cart according to claim 1, it is characterised in that: the sliding block (10) It is upper that one side wall of the groove is inclined-plane with the groove for accommodating the lock pin (12), the inclined-plane formed can with it is described Lock pin (12) phase sliding contact and push lock pin (12) be detached from groove third inclined-plane (103).

8. a kind of tripper of folding children's cart according to claim 1, it is characterised in that: on the third rod piece Offer the lockhole mobile for the lock pin (12), when the tripper is in the lock state, the one of the lock pin (12) End stretches out the lockhole and is connected with the sliding block (10), when the tripper is in the unlocked state, the lock pin (12) one end is retracted into the lockhole and is separated with the sliding block (10).

9. a kind of tripper of folding children's cart according to claim 1, it is characterised in that: first bar Part is movably connected with the second rod piece, and the third rod piece is rotationally connected with the second rod piece, when the unlock fills It sets when being in the lock state, first rod piece, the second rod piece, the relative position between third rod piece are locked, work as institute State tripper it is in the unlocked state when, first rod piece, the second rod piece are released between third rod piece.

10. a kind of folding children's cart with tripper of any of claims 1-9, it is characterised in that: it The top phase of the fore-stock (22) that is movably connected including push rod, with the push rod, rear portion and the fore-stock (22) turns The handrail (23) of dynamic connection, the after-poppet (25) of connection that rotates with the push rod, top rotate with the fore-stock (22) Connection and lower part and the after-poppet (25) rotate the support rod (26) of connection, the bottom of the fore-stock (22) and it is described after The bottom of bracket (25) is respectively connected with wheel (20), and the push rod is first rod piece, and the fore-stock (22) is described The second rod piece, the handrail (23) is the third rod piece, and after the folding children's cart folds, the folding children's are pushed away The relatively described fore-stock (22) of vehicle is glided mutually draws close with fore-stock (22) and after-poppet (25).