CN209351448U - Folding mechanism behind folding shallow - Google Patents

Abstract

The utility model discloses and provides a rear folding mechanism for a folding trolley with reasonable design, convenient use, fast locking, folding and unfolding. The utility model comprises a left vertical rod (1) for the rear wheel of the cart, a right vertical rod (2) for the rear wheel of the cart, a cross folding group and a pedal locking group, the upper ends of the cross folding group are connected with the rear of the cart respectively. The upper part of the left vertical rod (1) of the wheel and the right vertical rod (2) of the rear wheel of the cart is slidably connected, and the lower end of the upper part of the cross folding group is fixedly connected with the front and rear connecting rods of the folding cart. The locking group is arranged on the right vertical bar (2) of the rear wheel of the cart and connected with the cross folding group. The utility model is suitable for the field of folding carts.

Description

Rear folding mechanism of a folding cart

technical field

The utility model relates to a rear folding mechanism for a folding cart.

Background technique

In the field of folding baby strollers, the structure of the folding mechanism of the frame of the conventional folding stroller is cumbersome, and it is not convenient to fold or unfold the stroller through the folding mechanism.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, and provide a rear folding mechanism for a folding cart with reasonable design, convenient use, fast locking, folding and unfolding.

The technical solution adopted by the utility model is: the utility model comprises the left vertical rod of the rear wheel of the cart, the right vertical rod of the rear wheel of the cart, the cross folding group and the pedal locking group, the upper ends of the cross folding group are respectively connected with the The left vertical bar of the rear wheel of the cart and the upper part of the right vertical bar of the rear wheel of the cart are slidably connected, the lower end of the upper part of the cross folding group is fixedly connected with the front and rear connecting rods of the folding cart, and the pedal locking group It is arranged on the right vertical bar of the rear wheel of the stroller and connected with the cross folding group.

The cross folding group includes a hinge block, a left cross folding rod, and a right cross folding rod. The left cross folding rod and the right cross folding rod are placed across each other. on the intersection point of the right cross folding rod and are respectively hinged with the left cross folding rod and the right cross folding rod.

The upper end of the left cross folding rod is adapted to be hingedly provided with a sliding sleeve, and the sliding sleeve is adapted to be movably sleeved on the left vertical rod of the rear wheel of the cart.

The sliding sleeve is provided with a left card platform and a left card platform torsion spring, and the left cross folding rod is provided with a left driving connecting bar, and the end of the left driving connecting bar is adapted to be connected to the hinge block. The head end of the left drive connection bar is adapted to be connected to the upper part of the left card table, and the left card table torsion spring is adapted to be arranged on the lower part of the left card table and pressed against the inner wall of the sliding sleeve In contact, the left vertical bar of the rear wheel of the cart is provided with a left card slot that matches the left card platform.

The pedal locking group includes a buckle sliding sleeve and a foot-operated hook table, and the snap-fit sliding sleeve is fitted on the right vertical rod of the rear wheel of the cart. The adaptive hinge is arranged on the right vertical bar of the rear wheel of the cart and placed under the buckle sliding sleeve. The inside of the upper part of the buckle sliding sleeve is provided with a right card platform and a right card platform torsion spring, and the right cross folding rod is provided with a right drive connection bar, and the end of the right drive link bar is adapted to be connected to the hinge block above, the head end of the right driving connecting bar is fitted and connected to the upper part of the right card table, and the torsion spring of the right card table is adapted to be arranged on the lower part of the right card table and slides with the buckle The inner wall of the upper part of the cover is in pressing contact with each other, and the right vertical bar of the rear wheel of the cart is provided with a right card slot matching with the right card platform.

The lower part of the buckle sliding sleeve is provided with a horizontal post, and the foot-operated hook table is provided with a hook, and the horizontal post is adapted to the hook.

A pushing block is arranged on the hinge block, and the ends of the left driving connecting bar and the ends of the right driving connecting bar are adapted to be connected to the pushing block.

The beneficial effects of the utility model are: the utility model can quickly realize folding, locking, unlocking and unfolding, which can greatly facilitate the use of users, and there is linkage locking after unfolding, which is safer and more reliable.

Description of drawings

Fig. 1 is an exploded view of the utility model;

Fig. 2 is the overall structural representation of the utility model;

Fig. 3 is a schematic diagram of the mechanism of the utility model in a folded state.

Detailed ways

As shown in Fig. 1, Fig. 2 and Fig. 3, the utility model comprises the left vertical rod 1 of the rear wheel of the cart, the right vertical rod 2 of the rear wheel of the cart, the cross folding group and the pedal locking group, the cross folding group The upper ends are respectively slidably connected to the upper parts of the left vertical bar 1 of the rear wheel of the cart and the right vertical bar 2 of the rear wheel of the cart, and the lower end of the upper part of the cross folding group is fixed to the front and rear connecting rods of the folding cart Connected, the pedal locking group is arranged on the right vertical rod 2 of the rear wheel of the stroller and is connected with the cross folding group.

The cross folding group includes hinge block 31, left cross folding rod 32, and right cross folding rod 33. The intersection of the left cross folding rod 32 and the right cross folding rod 33 is hinged to the left cross folding rod 32 and the right cross folding rod 33 respectively.

The upper end of the left cross folding rod 32 is adapted to be hingedly provided with a sliding sleeve 34 , and the sliding sleeve 34 is adapted to be movably sleeved on the left vertical rod 1 of the rear wheel of the cart.

The sliding sleeve 34 is provided with a left card platform 341 and a left card platform torsion spring 342, and the left cross folding rod 32 is provided with a left driving connecting bar 343, and the end of the left driving connecting bar 343 is fitted and connected to the On the hinge block 31, the head end of the left driving connecting bar 343 is adapted to be connected to the upper part of the left card platform 341, and the left card platform torsion spring 342 is adapted to be arranged on the left card platform 341. The lower part is in pressing contact with the inner wall of the sliding sleeve 34 , and the left vertical rod 1 of the rear wheel of the cart is provided with a left card slot matching the left card platform 341 .

The pedal locking group includes a buckle sliding sleeve 41 and a pedal type lock hook platform 42, and the buckle sliding sleeve 41 is adapted to be movably sleeved on the right vertical bar 2 of the rear wheel of the cart, and the pedal The type lock hook table 42 is adapted to be hingedly arranged on the right vertical bar 2 of the rear wheel of the cart and placed under the buckle sliding sleeve 41, and the upper part of the buckle sliding sleeve 41 is connected to the right cross folding rod The top of 33 is adapted to be hinged, and the inside of the upper part of the buckle sliding sleeve 41 is provided with a right card platform 411 and a right card platform torsion spring 412, and the right cross folding rod 33 is provided with a right drive connection bar 331. The end of the right driving connecting bar 331 is adapted to be connected to the hinge block 31, and the head end of the right driving connecting bar 331 is adapted to be connected to the upper part of the right card platform 411, and the right card platform torsion spring 412 is adapted to be arranged on the lower part of the right card platform 411 and presses and contacts with the inner wall of the upper part of the buckle sliding sleeve 41. The right vertical rod 2 of the rear wheel of the cart is provided with Adapted right card slot.

The lower part of the buckle sliding sleeve 41 is provided with a horizontal post 43 , and the foot-operated hook table 42 is provided with a hook 44 , and the horizontal post 43 is matched with the hook 44 .

The hinge block 31 is provided with a push block 35 , and the end of the left driving connecting bar 343 and the end of the right driving connecting bar 331 are adapted to be connected to the pushing block 35 .

working principle:

When the utility model needs to be folded and folded when the utility model is in the unfolded working state, the outside personnel first step on the foot-operated lock hook platform 42, so that the grab 44 leaves the horizontal clamp post 43, and then pushes the push block 35 is pushed upwards, driving the tops of the right driving connecting bar 331 and the left driving connecting bar 343 to be folded inward at the same time, while the right driving connecting bar 331 pulls the right card platform 411, and the left driving connecting bar 343 pulls the left card table 341, the right card table 411 overcomes the active force of the right card table torsion spring 412 and breaks away from the right card slot, and the left card table 341 overcomes the active force of the left card table 341 and breaks away The left card slot. At this time, push the buckle sliding sleeve 41 upwards to make the buckle sliding sleeve 41 slide along the right vertical bar 2 of the rear wheel of the cart, and the sliding sleeve 34 slides along the rear wheel of the cart at the same time. The left vertical bar 1 slides up, and in this process, the left vertical bar 1 of the rear wheel of the cart is moved closer to the right vertical bar 2 of the rear wheel of the cart, thereby completing the folding and stowing.

When unfolding, outsiders step on the pushing block 35, thereby driving the buckle sliding sleeve 41 to slide down along the right vertical rod 2 of the rear wheel of the cart, and the sliding sleeve 34 slides down along the left vertical rod of the rear wheel of the cart. Rod 1 slides down so that the left vertical bar 1 of the cart rear wheel and the right vertical bar 2 of the rear wheel of the cart are away from each other; Clamp the left card slot, the right card platform 411 clamps the right card slot under the force of the right card platform torsion spring 412, and then the horizontal card column 43 is hooked by the hook 44 Tight, this completes the unfolding and locking.

The utility model is suitable for the field of folding carts.

Claims (7)

1. folding mechanism after a kind of Folding trolley, it is characterised in that: it includes that the left vertical bar of cart rear-wheel (1), the cart rear-wheel right side are perpendicular Bar (2), intersect equivalent group and and foot-operated locking group, the upper end for intersecting equivalent group it is perpendicular with a cart rear-wheel left side respectively The top of bar (1) and the right vertical bar of cart rear-wheel (2) is mutually slidably connected, the lower end on the top for intersecting equivalent group and folding The front and back connecting rod of folded cart is fixedly connected, ride locking group be arranged on the right vertical bar of cart rear-wheel (2) and with the friendship Equivalent group is pitched to be connected.

2. folding mechanism after Folding trolley according to claim 1, it is characterised in that: described to intersect equivalent group including hinged Block (31), it is left intersect equivalent bar (32), it is right intersect equivalent bar (33), it is described it is left intersect equivalent bar (32) and it is described it is right intersect convert into Bar (33) intersects placement, hinged block (31) setting it is described it is left intersect equivalent bar (32) and it is described it is right intersect convert into bar (33) on crosspoint and respectively with it is described it is left intersect equivalent bar (32) and it is described it is right intersects convert into bar (33) and be hinged.

3. folding mechanism after Folding trolley according to claim 2, it is characterised in that: the left intersection equivalent bar (32) Upper end adaptation is hingedly provided with sliding sleeve (34), and sliding sleeve (34) adaptation is movably set in the left vertical bar of cart rear-wheel (1) on.

4. folding mechanism after Folding trolley according to claim 3, it is characterised in that: be provided in the sliding sleeve (34) Left chuck (341) and left chuck torsional spring (342), the left intersection, which converts into, is provided with left drive connection item (343) on bar (32), The left end adaptation for being drivingly connected item (343) is connected on the hinged block (31), left drive connection item (343) Head end is adapted to the top for being connected to the left chuck (341), and left chuck torsional spring (342) adaptation is arranged in the left chuck (341) lower part and the inner wall phase forceful contact with the sliding sleeve (34), be provided on the left vertical bar of cart rear-wheel (1) with The compatible left card slot of the left chuck (341).

5. folding mechanism after Folding trolley according to claim 4, it is characterised in that: the foot-operated locking group includes buckle Sliding sleeve (41) and foot-operated latch hook platform (42), it is right that buckle sliding sleeve (41) adaptation is movably set in the cart rear-wheel On vertical bar (2), the foot-operated hinged setting of latch hook platform (42) adaptation is placed in described on the right vertical bar of cart rear-wheel (2) The lower section of sliding sleeve (41) is buckled, the top of buckle sliding sleeve (41) is mutually fitted with the right top for intersecting equivalent bar (33) With hinged, described buckle sliding sleeve (41) top is internally provided with right chuck (411) and right chuck torsional spring (412), described Right drive connection item (331) is provided in right intersection equivalent bar (33), the right end for being drivingly connected item (331) is adapted to connection On the hinged block (31), the right head end adaptation for being drivingly connected item (331) is connected to the upper of the right chuck (411) Portion, right chuck torsional spring (412) the adaptation setting the right chuck (411) lower part and on the buckle sliding sleeve (41) The inner wall phase forceful contact in portion is provided with the compatible right card with the right chuck (411) on the right vertical bar of cart rear-wheel (2) Slot.

6. folding mechanism after Folding trolley according to claim 5, it is characterised in that: under the buckle sliding sleeve (41) Portion is provided with horizontal card column (43), is provided with grab (44) on the foot-operated latch hook platform (42), the horizontal card column (43) with The grab (44) is adapted.

7. folding mechanism after Folding trolley according to claim 6, it is characterised in that: be provided on the hinged block (31) Pushing block (35), the left end for being drivingly connected item (343) and the right end company of adaptation for being drivingly connected item (331) It connects on the pushing block (35).