Impact type unlocking device with memory function of baby carriage and baby carriage frame

Abstract

The utility model relates to an impact type unlocking device with a memory function of a baby carriage and a baby carriage frame. The impact type unlocking device with the memory function of the baby carriage comprises a base and an overturning part, the overturning part is hinged to the base and can relatively overturn, and the overturning part comprises an overturning seat. The overturning seat is provided with a triggering piece for bearing impact, a transmission assembly which is propped against or connected with the triggering piece, and a locking assembly which can move under the driving of the transmission assembly to realize unlocking; meanwhile, the base is provided with a locking groove matched with the locking assembly to achieve locking. A limiting assembly used for maintaining the unlocking state is arranged at the contact position of the transmission assembly and the locking assembly. According to the impact type unlocking structure, the unlocking state can be maintained for a long time after unlocking, so that the hand can be relaxed after being impacted by a single hand, other pressing or opening and closing operation is not needed, and subsequent folding operation can be completed by directly turning over the frame handrail.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of baby car, concretely relates to a baby car's with memory function's impact type unlocking device and baby car frame. BACKGROUND

[0002] Baby car is the tool car of baby's outing and outdoor activity. In order to facilitate carrying and transportation, baby car is usually designed into foldable structure. In order to facilitate operation, the unlocking switch of the whole car folding is usually arranged on the handlebar of the frame, such as the baby stroller folding mechanism disclosed in CN116605278A, the single-hand button in the middle of the handlebar group is the unlocking switch, and the subsequent folding operation is gradually completed after unlocking. Similar pressing type unlocking mode needs to perform the next step operation immediately in the instant of unlocking, or maintain the pressing state in the process of turning over the handlebar, otherwise the frame is relocked and folding cannot be completed. SUMMARY

[0003] The utility model mainly aims at the unlocking operation problem of baby car frame, and invents a baby car's with memory function's impact type unlocking device, adopts impact unlocking, and can maintain the unlocking state for a long time after unlocking, until the locking member is exposed again after being turned to a certain angle with the turning seat and being released from the restraint of the base, conversely, when the locking member is reversely turned back to the inside of the base with the turning seat, the locking member is reinserted into the inside of the base, and the locking member is gradually moved under the resistance and pushing of the internal structure of the base until the third inclined part of the locking member is embedded into the locking slot and returns to the locked state.

[0004] The utility model discloses a baby car's with memory function's impact type unlocking device, including the base, the turning part that is hinged with the base and can be opposite turning, the turning part includes the turning seat, its characterized in that, the turning seat is provided with the trigger member that bears the impact, the transmission assembly that is resisted or connected with the trigger member, the locking assembly that can move and realize unlocking under the drive of transmission assembly, at the same time, the base is provided with the locking slot that realizes the locking with the locking assembly matching, the contact part of transmission assembly and locking assembly is provided with the limiting assembly for maintaining the unlocking state.

[0005] When the trigger member is impacted, the trigger member moves and pushes the transmission assembly to move, and the transmission assembly drives the locking assembly to move, so as to be unlocked, and under the action of the limiting assembly, the transmission assembly and the locking assembly remain stationary, and the unlocking state is maintained.

[0006] As preferred, the transmission assembly includes a transmission member and a first elastic member arranged between the transmission member and the turning seat, and the transmission member moves against the resistance of the first elastic member under the driving of the trigger member. The first elastic member can be a spring member or an elastic member made of an elastic material with elastic recovery performance.

[0007] As a preferred, the locking assembly comprises a locking member, a second elastic member arranged between the locking member and the turning base; the locking member is driven by the transmission assembly to move against the resistance of the second elastic member to achieve unlocking. The second elastic member can be a spring member or an elastic member made of elastic material with elastic recovery performance.

[0008] As a preferred, the end of the transmission member close to the locking member is arranged as an inclined surface, which is a first inclined part, and a concave limiting groove is arranged at the part of the transmission member close to the first inclined part.

[0009] As a preferred, a second inclined part matching the first inclined part is arranged on the locking member, and a relatively protruding limiting member matching the limiting groove is arranged at the end of the second inclined part; the limiting member can be embedded in the limiting groove to maintain the unlocking state of the locking member.

[0010] After the trigger member is hit, the first inclined part of the transmission member and the second inclined part of the locking member are in close contact and instantaneously move relative to each other, so that the limiting member at the end of the second inclined part is embedded in the limiting groove at the end of the first inclined part; after this process, the transmission member is extended.

[0011] As a preferred, a protruding part for extruding or abutting against the locking member to make the limiting member and the limiting groove disengage from each other to unlock is arranged at the part of the base close to the locking slot. With the rotation of the turning base, the retracted locking member disengages from the locking slot, and when the locking member touches the protruding part outside the locking slot, the protruding part extrudes the end of the locking member, the locking member is further retracted, so that the limiting member of the locking member is disengaged from the limiting groove of the transmission member, and the limiting action between the transmission member and the locking member is released; at this time, the transmission member returns to the original position under the action of the first elastic member, and in fact the locking member is no longer in the unlocking state, and under the elastic recovery action of the second elastic member, the locking member has a tendency to pop out, but it cannot pop out due to the limitation of the internal structure of the base, so it still appears to be in the unlocking state from the effect. Only when the locking member is completely exposed to the turning base, it can pop out.

[0012] As a preferred, the end of the locking member that can be exposed is arranged as an inclined surface, which is a third inclined part. In the process of the turning base returning from the turning and folding state to the unfolded state, if the end of the locking member is arranged as an inclined surface, it can be retracted more smoothly, because the slope of the inclined surface has a guiding effect, when the third inclined part abuts against the base, the locking member can be gradually retracted until the third inclined part is embedded in the locking slot again to be relocked.

[0013] As a preferred, a guide assembly for limiting the moving direction and moving amplitude of the trigger member is arranged on the turning base; such as guide slot, guide column and other structures.

[0014] A stroller frame, comprising a front frame leg, a rear frame leg and a handle, characterized in that it further comprises a striking unlocking device, the front frame leg is connected to the lower front side of the base, the rear frame leg is connected to the lower rear side of the base, and the handle is connected to the upper end of the turnover seat; the trigger is arranged on the lower inner side of the vertical rod of the handle, and the upper part of the handle is provided with a driving part for striking the trigger, the driving part comprising a transverse rod of the handle and striking rods extending downward from both ends of the transverse rod, the lower end of the striking rod being capable of striking the upper end of the trigger.

[0015] The stroller frame combines the striking unlocking device; the striking unlocking is realized by the striking rods of the handle striking the trigger, and the unlocked state is maintained without any other operation until the locking member is disengaged from the base after the handle is turned to a certain angle, the locking member is exposed again, and the subsequent folding operation of the frame is completed; conversely, when the handle is turned back to the unfolded state, the locking member is retracted into the base, the locking member is gradually retracted by the resistance and pushing of the internal structure of the base, and the frame is relocked.

[0016] Compared with the prior art, the stroller frame has the following beneficial effects:

[0017] The striking unlocking device adopts the striking unlocking structure, the unlocked state can be maintained for a long time, so that the hand can be relaxed after the striking operation by one hand, and no other pressing or switching operation is needed, and the subsequent folding operation can be directly completed by turning the handle. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 4 is a schematic view of the locked state of the striking unlocking device of the present application;

[0019] Figure 2 FIG. 5 is a sectional view of the locked state of the striking unlocking device of the present application;

[0020] Figure 3 FIG. 6 is a schematic view of the position relationship between the transmission assembly and the locking assembly when the striking unlocking device of the present application is in the locked state;

[0021] Figure 4 FIG. 7 is a schematic view of the unlocked and turned state of the striking unlocking device of the present application;

[0022] Figure 5 FIG. 8 is a sectional view of the unlocked and turned state of the striking unlocking device of the present application;

[0023] Figure 6 FIG. 9 is a schematic view of the position relationship between the transmission assembly and the locking assembly when the striking unlocking device of the present application is in the unlocked and turned state;

[0024] Figure 7 The second embodiment of the impact type unlocking device of the utility model;

[0025] Figure 8 The third embodiment of the impact type unlocking device of the utility model;

[0026] Figure 9 The schematic diagram of the baby carriage frame of the utility model;

[0027] Figure 10 The schematic diagram of the half folding state of the baby carriage frame of the utility model;

[0028] Figure 11 The schematic diagram of the folding state of the baby carriage frame of the utility model.

[0029] Marked in the figure: 1, base; 10, lock slot; 11, convex part; 2, turnover seat; 21, guide assembly; 3, trigger; 4, transmission assembly; 40, transmission part; 41, first elastic part; 42, first inclined part; 43, limiting slot; 5, locking assembly; 50, locking part; 51, second elastic part; 52, second inclined part; 53, limiting part; 54, third inclined part; 55, arc end;

[0030] 61, front frame; 62, rear frame; 63, handle; 64, drive part; 7, armrest connecting seat; 71, seat armrest. DETAILED DESCRIPTION

[0031] The utility model will be further described in connection with the embodiment shown in the attached drawings:

[0032] Example 1:

[0033] As Figures 1-6 shown, an impact type unlocking device with memory function of baby carriage, including base 1, the inside of base 1 has installation space and movable cavity, base 1 is rotationally connected with turnover part on, the main part of turnover part is a turnover seat 2, turnover seat 2 installs trigger 3, transmission assembly 4, locking assembly 5 in.

[0034] Among them, the trigger 3 that bears the impact can adopt metal parts, the trigger 3 is provided with guide slot, while turnover seat 2 has the guide column matched with it in, the guide slot and guide column can limit the moving direction and moving amplitude of trigger.

[0035] The transmission assembly 4 is composed of a transmission member 40 and a first elastic member 41. The first elastic member 41 is a spring. The first elastic member 41 abuts between the flipping seat 2 and the transmission member 40. One end of the transmission member 41 abuts against the trigger member 3. The other end of the transmission member 41 is set as an inclined surface, which is a first inclined part 42. The end of the first inclined part 42 has a concave limiting groove 43.

[0036] The locking assembly 5 is configured to be perpendicular to the transmission assembly 4. The locking assembly 5 consists of a locking member 50 and a second elastic member 51. The second elastic member 51 is a spring. The second elastic member 51 abuts between the flip seat 2 and the locking member 50. The middle part of the locking member 50 has an end of a second inclined portion 52 that matches the first inclined portion 42 and a protruding limiting member 53 corresponding to the limiting groove 43. The limiting member 53 can be embedded in the limiting groove 43 to maintain the unlocked state.

[0037] The locking end of the locking member 3 is inclined, which is the third inclined part 54, and the protruding end of the third inclined part 54 is a rounded arc end 55.

[0038] There is a recessed locking groove 10 inside the base 1. The locking groove 10 corresponds to the third inclined portion 54 of the locking member 50. The third inclined portion 55 can be inserted into the locking groove 10 for locking.

[0039] Meanwhile, a protrusion 11 is provided in the base 1 near the locking groove 10. This protrusion 11 is used to press the arc end 55 of the locking member 50, causing the locking member 50 to retract slightly further, thereby disengaging the limiting member 53 and the limiting groove 43 from each other. To ensure that the limiting member 53 and the limiting groove 43 can disengage with slight pressure, the limiting groove 43 is relatively shallow.

[0040] In this embodiment, the flipping part consists of a flipping seat 2 and an armrest connecting seat 7. The armrest connecting seat 7 is used to install the seat armrest 71 of the stroller. Specifically, the armrest connecting seat 7 is first hinged to the base 1 via a shaft, and the flipping seat 2 is hinged to the armrest connecting seat 7 via a shaft. The two hinged parts are not on the same axis. When the flipping seat 2 flips, it can drive the armrest connecting seat 7 to flip in conjunction.

[0041] Example 2:

[0042] like Figure 7 As shown, compared with Embodiment 1, in this embodiment, the flipping part is composed of a flipping seat 2 and an armrest connecting seat 7. The armrest connecting seat 7 is used to install the seat armrest 71 of the stroller. Specifically, the armrest connecting seat 7 is hinged to the base 1 via a shaft, and the flipping seat 2 is also hinged to the base 1 via a shaft. Furthermore, the armrest connecting seat 7 and the flipping seat 2 are hinged to the same shaft. When the flipping seat 2 flips, it can drive the armrest connecting seat 7 to flip in conjunction.

[0043] Example 3:

[0044] As Figure 8 shown, compared with example 1, in this example, the turnover part is only composed of a turnover seat 2, which is hinged to the base 1 through a shaft.

[0045] Example 4:

[0046] As Figure 9 , 10 , 11 shows a baby carriage frame, which uses the above-mentioned impact unlocking device. Specifically, the front leg 61 of the frame is connected to the lower front side of the base 1, the rear leg 62 of the frame is connected to the lower rear side of the base 1, and the handle 63 of the frame is connected to the upper end of the turnover seat 2; and the trigger 3 is located at the lower inner side of the vertical rod of the handle 63, and the upper part of the handle 63 has a driving part 64 for impacting the trigger 3, which is composed of a transverse rod of the handle 63 and impact rods extending downward from both ends of the transverse rod, wherein the lower end of the impact rod can impact the upper end of the trigger 3.

[0047] The unlocking and folding process is as follows:

[0048] Hold the middle part of the handle 63 of the frame with one hand, pull up the handle 63 and the impact rods on both sides, and then slightly impact the trigger 3 downward; the impacted trigger 3 moves downward, the lower end of the trigger 3 impacts the transmission part 40, the transmission part 40 overcomes the resistance of the first elastic part 41 and moves downward and towards the locking part 50; then the first inclined part 42 of the transmission part 40 and the second inclined part 52 of the locking part 50 quickly fit and displace, and the limiting part 53 at the end of the second inclined part 52 is engaged with the limiting groove 43 of the first inclined part 42, completing the unlocking and maintaining the unlocked state; turn the handle 63 forward, and when the third inclined part 54 of the locking part 50 is disengaged from the lock groove 10, the protruding part 11 outside the lock groove 10 extrudes the arc end 55 at the upper end of the third inclined part 54, so that the limiting part 53 is disengaged from the limiting groove 43; when the handle 63 continues to turn forward and downward, the turnover seat 2 is exposed to the base 1, and the third inclined part 54 of the locking part 50 is also re-exposed to the turnover seat.

[0049] Conversely, when unfolding the frame, turn the handle 63 upward and backward, drive the turnover seat 2 into the base 1, and the third inclined part 54 of the locking part 50 is gradually pushed in by the internal structure of the base 1 until it is re-embedded in the lock groove 10, and the frame is locked.

[0050] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A shock-type unlocking device with memory function for a stroller, comprising a base (1) and a flipping part hinged to the base (1) and capable of flipping relative to it, the flipping part comprising a flipping seat (2), characterized in that, The flip base (2) is provided with a trigger (3) to withstand impact, a transmission component (4) that abuts against or connects to the trigger (3), and a locking component (5) that can move under the drive of the transmission component (4) to unlock; at the same time, the base (1) is provided with a locking groove (10) that matches the locking component (5) to lock. The contact portion of the transmission assembly (4) and the locking assembly (5) is provided with a limiting component for maintaining the unlocked state.

2. The impact-type unlocking device with memory function for a stroller according to claim 1, characterized in that, The transmission assembly (4) includes a transmission component (40) and a first elastic component (41) disposed between the transmission component (40) and the flipping seat (2); the transmission component (40) moves against the resistance of the first elastic component (41) under the drive of the trigger component (3).

3. The impact-type unlocking device with memory function for a stroller according to claim 2, characterized in that, The locking assembly (5) includes a locking member (50) and a second elastic member (51) disposed between the locking member (50) and the flip seat (2); the locking member (50) moves inward to overcome the resistance of the second elastic member (51) under the drive of the transmission assembly (4) to unlock.

4. The impact-type unlocking device with memory function for a stroller according to claim 3, characterized in that, The end of the transmission member (40) near the locking member (50) is provided with an inclined surface, which is the first inclined part (42), and a recessed limiting groove (43) is provided on the part of the transmission member (40) near the first inclined part (42).

5. The impact-type unlocking device with memory function for a stroller according to claim 4, characterized in that, The locking member (50) is provided with a second inclined portion (52) that matches the first inclined portion (42), and the end of the second inclined portion (52) is provided with a relatively protruding limiting member (53) that matches the limiting groove (43); the limiting member (53) can be inserted into the limiting groove (43) to maintain the unlocked state of the locking member (50).

6. The impact-type unlocking device with memory function for a stroller according to claim 5, characterized in that, The base (1) near the locking groove (10) is provided with a protrusion (11) for squeezing or abutting the locking member (50) so that the limiting member (53) and the limiting groove (43) are disengaged and unlocked.

7. The impact-type unlocking device with memory function for a stroller according to claim 3, characterized in that, The exposed end of the locking member (50) is provided as an inclined surface, which is the third inclined part (54).

8. The impact-type unlocking device with memory function for a stroller according to claim 1, characterized in that, The flip seat (2) is provided with a guide component (21) for limiting the movement direction and movement range of the trigger (3).

9. A stroller frame, comprising a front frame leg (61), a rear frame leg (62), and a handlebar (63), characterized in that, It also includes a memory-function impact-type unlocking device for a stroller as described in any one of claims 1-8, wherein the front leg (61) of the frame is connected to the lower front side of the base (1), the rear leg (62) of the frame is connected to the lower rear side of the base (1), and the handlebar (63) of the frame is connected to the upper end of the flip seat (2); and the trigger (3) is disposed on the lower inner side of the vertical rod of the handlebar (63), and the upper part of the handlebar (63) is provided with a drive part (64) for impacting the trigger (3), the drive part (64) includes a horizontal rod of the handlebar (63) and impact rods extending downward from both ends of the horizontal rod, the lower end of the impact rods being able to impact the upper end of the trigger (3).

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