CN208978939U

CN208978939U - Folding device for pram

Info

Publication number: CN208978939U
Application number: CN201821673401.3U
Authority: CN
Inventors: 杨正帆
Original assignee: ZHONGSHAN WEST DISTRICT QINGYUAN TRADE AGENCY SERVICE DEPARTMENT
Current assignee: ZHONGSHAN WEST DISTRICT QINGYUAN TRADE AGENCY SERVICE DEPARTMENT
Priority date: 2018-10-16
Filing date: 2018-10-16
Publication date: 2019-06-14
Anticipated expiration: 2028-10-16

Abstract

A kind of folding device for pram of the utility model, in frame body, with socket joint, connection component after socket joint setting one, connection component and a handle connection component with handle driving wheel before one, preceding connection component includes a front driven wheel with driven unit, connection component before handle connection component abuts, handle driving wheel has a friction element and a reserved space for elastically deformable flaring, friction element abuts and drives driven unit accordingly to rotate with frictional force, therefore the smooth folding of energy, frame body is unfolded, and reduce precision requirement, group-connecting groove and reserved space are equipped in friction element, when the slipping state of friction element, by the friction element for acting on elastically deformable, it can then be released and be adjusted to correct position using group-connecting groove and reserved space, have the characteristics that correction return is convenient and fast, simultaneously, pass through setting The diameter ratio of front driven wheel and handle driving wheel is to adjust rotational angle, and then the overturning folding angles of control handle hack lever and front-wheel hack lever.

Description

Folding device for pram

[technical field]

The utility model relates to perambulators, and in particular to be moved, position and be easy to frictional resistance to release slipping state Folding device for pram.

[background technique]

At present the frame body of perambulator include two spaced Folding devices, a front-wheel hack lever, a rear-wheel hack lever and Leader's hack lever, the front-wheel hack lever are located at two Folding device, which is located at two Folding device and is located at and be somebody's turn to do Front-wheel hack lever rear, the handle hack lever are located at two Folding device and are located above the rear-wheel hack lever, fill through the folding Set allow the frame body folding, expansion.

The Folding device usually has gear type to drive and link-type drive, wherein the Folding device that gear type drives is adopted It is engaged with plural gear and achievees the purpose that drive, positioning, but the use of gear is small with tolerable tolerance and precision is wanted Ask high problem and gear can generate jump tooth situation, and jump tooth generate displacement it is big, and link-type drive then make it is whole Structure is complicated for body, causes Folding device figure larger, the requirement that the occupancy volumetric spaces after being unfavorable for folding minimize.

It is of course also possible to use the Folding device frictionally driven, utilizes the Folding device frictionally driven, transmission knot Structure is succinct, and manufacturing cost is cheap；But people usually are easy to skid in design due to existing using friction, cause not Return can be corrected and abandon the scheme of the transmission folding or expansion.

The utility model is researched and proposed in view of the deficiencies of the prior art.

[utility model content]

A kind of folding device for pram of the utility model improves the Folding device that gear type drives whereby and requires precision The problem of high tooth with jump and the common Folding device frictionally driven easily skid and are not easy the problem of correcting return.

In order to solve the above technical problems, the folding device for pram system of the utility model is set to the vehicle frame sheet of perambulator Body, which includes:

One socket joint.

Connection component after one is set on rear-wheel hack lever upper end and to be located in socket joint, the socket joint relatively fixedly with The connection of rear-wheel hack lever upper end.

Connection component before one, the preceding connection component include one before connecting plate and a front driven wheel, the preceding one end of the connection board with Front-wheel hack lever connects relatively fixedly and the other end protrudes into socket joint and rotationally against the rear connection component, this is preceding driven For train with being set on the preceding connecting plate dynamicly, a driven unit is arranged in the lateral surface of the front driven wheel.

And leader's connection component, the handle connection component include leader's connecting plate and leader's driving wheel, this Hand one end of the connection board fixedly is connect relatively with handle hack lever and the other end protrudes into socket joint and rotationally connects after this Connected components, for the handle active train with being set on the handle connecting plate dynamicly, which includes a wheel body and a friction Unit, the friction element are set to wheel body side surface, and the driven unit that the friction element of the handle driving wheel is resisted against front driven wheel makes Driven wheel is obtained to rotate and rotated to drive front-wheel hack lever opposing rear wheels hack lever to draw close folding or expansion with handle driving wheel.

The friction element is made of the material of elastically deformable, the wheel body be used for against side and friction element opposite side The reserved space that may make handle driving wheel correction return when handle driving wheel skids with respect to front driven wheel is equipped between face.

The lateral surface of folding device for pram as described above, the wheel body forms a protrusion, which is sheathed on this Protrusion and the driven unit is abutted, the medial surface that a group-connecting groove and the friction element are formed in the friction element, which is formed, is connected to the group The opening of access slot, and the width of the opening be less than the group-connecting groove width, the reserved space by protrusion lateral surface and group-connecting groove It is formed between inner bottom surface.

Folding device for pram as described above, the protrusion include that a necking section and an outer rim segment, the necking section are connected to Between the lateral surface of wheel body and outer rim segment, which protrudes into the opening of the friction element, which, which is then caught in and is stuck in, rubs In the group-connecting groove for wiping unit, the width of the necking section is less than the width of the outer rim segment, and the reserved space is due to being located at the outer rim segment Lateral surface and the group-connecting groove bottom surface between formed.

Folding device for pram as described above, the friction element include a friction portion, two side plates and two innter blocking parts, are somebody's turn to do Friction portion contacts the driven unit, which is located at the two sides in the friction portion, which is respectively formed in this Two side plates simultaneously protrude out in opposite directions, and between two innter blocking part, the group-connecting groove is located between two side plate opening.

Folding device for pram as described above, the lateral surface of the wheel body form two confined planes, which is located at two limit Between plane, the both ends of the friction element bear against two confined planes.

Folding device for pram as described above, the lateral surface setting two draw-in groove of the front driven wheel, the two of the driven unit End is formed with two clamping portions, which, which is respectively protruding into, is stuck in two draw-in groove.

Folding device for pram as described above, the preceding connecting plate connect in forming one group on the side towards the front driven wheel Hole and 2 first group connecting parts, the front driven wheel connect column and 2 second groups connect in forming one group on the side towards the preceding connecting plate Portion, the group connect column and protrude into the joining hole, which is sheathed on respectively on 2 first group connecting part.

Folding device for pram as described above, the handle connecting plate is in forming one on the side towards the handle driving wheel Convergence hole and 2 first convergence parts, the handle driving wheel is in forming an engaging column and 2 on the side towards the handle connecting plate Two convergence parts, the engaging column protrude into the convergence hole, which is sheathed on respectively on 2 first convergence part.

Folding device for pram as described above, the preceding connecting plate and handle connecting plate opposite end are formed with spacing bayonet, The rear connection component includes sliding shoe and the shaft that is located on sliding shoe outer end, the sliding shoe can elastic telescopic be slidably connected to Rear-wheel hack lever upper end, the shaft can be caught in spacing bayonet to lock preceding connecting plate and handle connecting plate and relatively rotate.

The utility model also provides a kind of folding device for pram, and compared with aforementioned folding device for pram, difference exists Be made in the driven unit of the material of elastically deformable, the front driven wheel be used for against side and driven unit opposite flank Between be equipped with when handle driving wheel with respect to front driven wheel skid when recoverable handle driving wheel return reserved space.

In the utility model, rear connection component is connected to the upper end of the rear-wheel hack lever of the frame body, to preceding connection Component and handle connection component are locked.When the frame body folding, connection component is allowed to release to preceding company after first acting on The lock state of connected components and handle connection component later rotates down handle hack lever, and the handle connection component is with this Hand cradle bar rotates together, and the friction element of the handle driving wheel abuts the driven unit of the front driven wheel, and passes through frictional force band It moves the driven unit accordingly to rotate, that is, may make the handle driving wheel and the front driven wheel to rotate towards each other and folding, using friction The friction of unit and driven unit offsets and smoothly links, and selects to use biggish friction between friction element and driven unit Coefficient is allowed to frictional resistance and increases its stability greatly, and then increases tolerable tolerance and reduce the requirement to precision.

Since the friction element is soft and the component of tool elasticity, and it is reserved that this is formed between the friction element and the protrusion Space, if skid, user can above push away the friction element, increase the width of friction element deformation and the opening, with suitable Benefit releases slipping state, and then convenient for correction friction element return；And the friction element when skidding the displacement that generates compared with It is small toward the displacement for jumping tooth, further return can be corrected by the setting of reserved space.

In addition, the rotational angle of the front wheel carrier bar of frame body and handle hack lever can pass through the front driven wheel and handle master The diameter proportion of driving wheel adjusts, therefore can pass through the module of connection component before folding device for pram and handle connection component Change, meets different use demands, the purpose of personalized customization is carried out including the demand to different clients.

[Detailed description of the invention]

Fig. 1: for the vehicle frame sheet for being set to perambulator of one of the folding device for pram of the utility model preferred embodiment The stereoscopic schematic diagram of body.

Fig. 2: for the perspective exploded view of one of the folding device for pram of the utility model preferred embodiment.

Fig. 3: for another perspective exploded view of one of the folding device for pram of the utility model preferred embodiment.

Fig. 4: for the plane signal of the handle driving wheel of one of the folding device for pram of the utility model preferred embodiment Figure.

Fig. 5: for the diagrammatic cross-section of the A-A face line of Fig. 4.

Fig. 6: for the combined planar schematic diagram of one of the folding device for pram of the utility model preferred embodiment.

Fig. 7: for the use state diagram of one of the folding device for pram of the utility model preferred embodiment.

[specific embodiment]

It please refers to Fig.1 to Fig.3, is a kind of preferred embodiment of the folding device for pram of the utility model, the perambulator Folding device system is set to the frame body 50 of perambulator and includes connection group before connection component 20, one after a socket joint 10, one Part 30 and leader's connection component 40.

The socket joint 10 includes a first half-shell 11 and one second half-shell 12, second half-shell 12 be set to this first half Shell 11, and an assembly space 13 is formed between the first half-shell 11 and second half-shell 12.51 upper end of rear-wheel hack lever and the first half Shell 11 and one second half-shell 12 are fixedly connected.

The rear connection component 20 includes sliding shoe 22 and the shaft 21 being located on 22 outer end of sliding shoe, which can Elastic telescopic is slidably connected to 51 upper end of rear-wheel hack lever, so that shaft 21 can protrude into socket joint 10.

Preceding 30 system of connection component is set to the socket joint 10 and rotationally against the rear connection component 20, the preceding connection group Part 30 includes connecting plate 31 and a front driven wheel 32 before one, and preceding 31 one end of connecting plate is fixedly connected with front-wheel hack lever 52, preceding connection 31 other end of plate then protrudes into socket joint 10 and on the shaft 21 for being stuck in rear connection component 20, and 32 system of front driven wheel is same It is set to the preceding connecting plate 31 dynamicly, a driven unit 33 is arranged in the lateral surface of the front driven wheel 32, which is in arcuation, The friction structure that 3 lateral surface of driven unit is equipped with to increase coefficient of friction, such as serration, asperities.In addition, 33 system of driven unit It is made with relatively hard materials, such as metal or plus fine plastics.

The handle connecting piece system is set to the socket joint 10 and rotationally against the rear connection component 20 and the handle 40 system of connection component abuts and can drive the preceding connection component 30, which includes leader's connecting plate 41 and one Handle driving wheel 42, the handle connecting plate 41 are hubbed at the socket joint 10 and against the shafts 21 of the rear connection component 20, and should The end of handle connecting plate 41 partly overlaps with preceding 31 one end of connecting plate, and the end of handle connecting plate 41 and preceding connecting plate 31 End between be formed with spacing bayonet 340, when frame body is in unfolded state, rear connection component 20 flexibly extends to pass It saves in seat 10, so that the shaft 21 on 22 outer end of sliding shoe is caught in spacing bayonet 340, therefore can will be in the vehicle of unfolded state The locking of frame ontology.

42 system of handle driving wheel is the same as dynamicly set on the handle connecting plate 41, as shown in Figure 4, Figure 5, the handle driving wheel 42 Comprising a wheel body 43 and a friction element 44, which is set to the handle connecting plate 41, and the lateral surface of the wheel body 43 is formed One protrusion 45, the friction element 44 are made of the material of the elastically deformables such as rubber, and are in the component of arcuation, the friction element 44 It is sheathed on the protrusion 45 and abuts the driven unit 33, form a group-connecting groove 441 and the friction element 44 in the friction element 44 Medial surface formed be connected to the group-connecting groove 441 opening 442, and the width of the opening 442 be less than the group-connecting groove 441 width, And the protrusion 45 lateral surface and the friction element 44 441 bottom surface of group-connecting groove between form a reserved space 443.

As shown in Figure 4, Figure 5, which includes a necking section 451 and an outer rim segment 452, and the necking section 451 connection should The lateral surface of the wheel body 43 and the opening 442 for protruding into the friction element 44, the outer rim segment 452 are set to the necking section 451 and protrude into The group-connecting groove 441 of the friction element 44, the width of the necking section 451 are less than the width of the outer rim segment 452, the reserved space 443 Between the lateral surface of the outer rim segment 452 and the bottom surface of the group-connecting groove 441, in addition, the lateral surface of the wheel body 43 forms two limits Plane 46, the protrusion 45 are located between two confined planes 46, and the both ends of the friction element 44 bear against two confined planes 46, In addition, the friction element 44 includes a friction portion 444, two side plates 445 and two innter blocking parts 446, the friction portion 444 contact should Driven unit 33, two side plate 445 are located at the two sides in the friction portion 444, two innter blocking part 446 be respectively formed in this two Side plate 445 simultaneously protrudes out in opposite directions, and for the opening 442 between two innter blocking part 446, the group-connecting groove 441 is located at two side Between plate portion 445.

As shown in figure 3, two draw-in groove 34 is arranged in the lateral surface of the front driven wheel 32, the both ends of the driven unit 33 form two Clamping portion 35, two clamping portion 35 are respectively protruding into the two draw-in groove 34, and the preceding connecting plate 31 is in the side towards the front driven wheel 32 One joining hole 36 of upper formation and 2 first group connecting parts 37, the front driven wheel 32 is in forming one on the side towards the preceding connecting plate 31 Group connects column 38 and 2 second group connecting parts 39, which connects column 38 and protrude into the joining hole 36, which is arranged respectively In 2 first group connecting part 37, in addition, the handle connecting plate 41 is in one linking of formation on the side towards the handle driving wheel 42 Hole 411 and 2 first convergence parts 412, the handle driving wheel 42 is in forming an engaging column on the side towards the handle connecting plate 41 421 and 2 second convergence parts 422, the engaging column 421 protrude into the convergence hole 411, which is sheathed on this respectively 2 first convergence parts 412.

As shown in Fig. 1, Fig. 6, the rear connection component 20 of the folding device for pram connects the rear wheel frame of the frame body 50 Bar 51, the preceding connection component 30 connect the front-wheel hack lever 52 of the frame body 50, the handle connection component by preceding connecting plate 31 40 connect the handle hack lever 53 of the frame body 50 by handle connecting plate 41.

As shown in fig. 7, when 50 folding of frame body, connection component 20 after first acting on, so that 22 opposing rear wheels of sliding shoe 21 slide downward of hack lever, until formed between the end of the disengaging handle connecting plate 41 of shaft 21 and the end of preceding connecting plate 31 Spacing bayonet 340, the handle hack lever 53 rotates down later, and drive the handle connection component 40 handle connecting plate 41, Hand driving wheel 42 rotates together, the front driven wheel 32 of the friction element 44 of the handle driving wheel 42 against the preceding connection component 30 Driven unit 33, the friction element 44 provide a frictional force give the driven unit 33, make the driven unit 33 and the friction list First 44 opposite direction rotatings, and then the preceding connection component 30 is driven to rotate backward together with the front-wheel hack lever 52, so the handle hack lever 53 towards while rear-wheel 51 folding of hack lever, which also towards 51 folding of rear-wheel hack lever, realizes linkage action.

The driven unit 33 of the friction element 44 of the handle connection component 40 and the preceding connection component 30 is frictional drive, When the frame body 50 expansion, before which drives this by the friction element 44 and driven unit 33 abutted against Wheel hack lever 52 folds forward and is unfolded, and when in display position, the effect of the sliding shoe 22 of rear connection component 20 in elastic force Under then automatically shaft 21 be caught between 31 end of 41 end of handle connecting plate and preceding connecting plate be formed by spacing bayonet 340, frame body 50 is locked.

When skidding needs to be corrected return, user can remove the second half-shell 12 of the socket joint 10, to adjust, The friction element 44 is pushed, the friction portion 444 of the friction element 44 then can be mobile towards the protrusion 45 by the reserved space 443, Two side plate 445 is pushed elastic deformation with two innter blocking part 446 and expands outward, increases the width of the opening 442 Add, and then 44 return of friction element can be corrected, is allowed in correct position, therefore can quickly and conveniently release slipping state And correction return.

In conclusion the handle connection component 40 of the folding device for pram is using friction element 44 and the preceding connection group The driven unit 33 of part 30 abuts, and can provide frictional force when friction element 44 rotates to drive the driven unit 33 accordingly to turn It is dynamic, smoothly achieve the purpose that frictional drive and linkage, the utility model is reduced since frictional drive can increase tolerable tolerance Requirement to precision, therefore the stability of its transmission is improved by increasing frictional force；In addition, the friction element 44 is convex with this The reserved space 443 is configured between portion 45, and the width of the opening 442 of the friction element 44 is less than the width of the group-connecting groove 441 Degree, thus the friction element 44 can by promotion flexible deformation, and then increase the width of the opening 442, then can release skidding shape State is moved to correct position in order to adjust the friction element 44, i.e. correction return.

In addition, the friction element 44 collocation driven unit 33 the kind of drive compared to previous gear type the kind of drive and Speech, the friction element 44 is small compared with the displacement for jumping tooth in the displacement for generation of skidding, and passes through the setting group in friction element 44 Access slot 441, and reserved space 443 is formed, it, can using the elastic force and reserved space 443 of friction element 44 itself when generating skidding Easily auxiliary corrective return.Furthermore the diameter proportion of the front driven wheel 32 and the handle driving wheel 42 can be adjusted according to demand, And the rotational angle of front-wheel hack lever 52, handle hack lever 53 can be adjusted by diameter proportion, therefore before the preceding connection component 30 The handle driving wheel 42 of driven wheel 32 and the handle connection component 40 can form modular arrangements, to meet different use need It asks, the purpose including meeting customer personalized customization.

People can according to need, and arbitrarily be selected in setting reserved space 443 on handle driving wheel 42 or front driven wheel 32. Another embodiment of folding device for pram as the utility model, compared with above-described embodiment, difference is: should Driven unit 33 is made of the material of elastically deformable, the front driven wheel 32 be used for against side and 33 opposite side of driven unit The reserved space of 42 return of recoverable handle driving wheel when handle driving wheel 42 skids with respect to front driven wheel 32 is equipped between face 443.Folding and the expansion movement of the embodiment were originally identical as the first embodiment, driving wheel 42 in the corresponding embodiment, preceding The structure of driven wheel 32 can accordingly refer to the structure of the first embodiment.

For in above-mentioned two embodiment, the scheme of the utility model preferably the first embodiment.

Claims

1. a kind of folding device for pram is to be set in the frame body of perambulator, it is characterised in that the folding of baby carriage Device includes:

One socket joint (10)；

Connection component (20) after one are set on rear-wheel hack lever (51) upper end and to be located in socket joint (10), the socket joint (10) It fixedly is connect relatively with rear-wheel hack lever (51) upper end；

Connection component (30) before one, which includes connecting plate (31) and a front driven wheel (32) before one, before this Connecting plate (31) one end and front-wheel hack lever (52) are connect relatively fixedly and the other end protrudes into socket joint (10) and rotationally Against the rear connection component (20), front driven wheel (32) system is same to be set on the preceding connecting plate (31) dynamicly, the front driven wheel (32) driven unit (33) are arranged in lateral surface；And

Leader's connection component (40), the handle connection component (40) include leader's connecting plate (41) and leader's driving wheel (42), which fixedly connect with handle hack lever (53) relatively and the other end protrudes into socket joint (10) And rotationally against the rear connection component (20), handle driving wheel (42) system is the same as dynamicly set on the handle connecting plate (41) On, which includes a wheel body (43) and a friction element (44), which is set to wheel body (43) Side, the driven unit (33) that the friction element (44) of the handle driving wheel (42) is resisted against front driven wheel (32) make driven wheel (32) it rotates and is rotated to drive front-wheel hack lever (52) opposing rear wheels hack lever (51) to draw close folding or exhibition with handle driving wheel (42) It opens；

The friction element (44) is made of the material of elastically deformable, the wheel body (43) be used for against side and friction element (44) being equipped between opposite flank may make handle driving wheel when handle driving wheel (42) skid with respect to front driven wheel (32) (42) reserved space (443) of return is corrected.

2. a kind of folding device for pram according to claim 1, it is characterised in that the lateral surface of the wheel body (43) is formed One protrusion (45), the friction element (44) are sheathed on the protrusion (45) and abut the driven unit (33), the friction element (44) The interior opening (442) for forming a group-connecting groove (441) and the medial surface formation connection of the friction element (44) group-connecting groove (441), And the width of the opening (442) be less than the group-connecting groove (441) width, the reserved space (443) by protrusion (45) lateral surface It is formed between group-connecting groove (441) inner bottom surface.

3. a kind of folding device for pram according to claim 2, it is characterised in that the protrusion (45) includes a necking section (451) and an outer rim segment (452), the necking section (451) are connected between the lateral surface of wheel body (43) and outer rim segment (452), should Necking section (451) protrudes into the opening (442) of the friction element (44), which is then caught in and is stuck in friction element (44) in group-connecting groove (441), the width of the necking section (451) is less than the width of the outer rim segment (452), the reserved space (443) it is formed by being located between the lateral surface of the outer rim segment (452) and the bottom surface of the group-connecting groove (441).

4. a kind of folding device for pram according to claim 3, it is characterised in that the friction element (44) rubs comprising one Wiping portion (444), two side plates (445) and two innter blocking parts (446), the friction portion (444) contact the driven unit (33), two side Plate portion (445) is located at the two sides in the friction portion (444), which is respectively formed in two side plate (445) And protrude out in opposite directions, the opening (442) is located between two innter blocking part (446), and the group-connecting groove (441) is located at two side plate (445) between.

5. a kind of folding device for pram according to claim 2, it is characterised in that the lateral surface of the wheel body (43) is formed Two confined planes (46), the protrusion (45) are located between two confined planes (46), and the both ends of the friction element (44) bear against this Two confined planes (46).

6. a kind of folding device for pram according to claim 1-5, it is characterised in that the front driven wheel (32) Lateral surface two draw-in groove (34) are set, the both ends of the driven unit (33) are formed with two clamping portions (35), two clamping portion (35) It is respectively protruding into and is stuck in two draw-in groove (34).

7. a kind of folding device for pram according to any one of claims 1 to 5, it is characterised in that the preceding connecting plate (31) In forming a joining hole (36) and 2 first group connecting parts (37), the front driven wheel (32) on the side towards the front driven wheel (32) Column (38) and 2 second group connecting parts (39) are connect in forming one group on the side towards the preceding connecting plate (31), which connects column (38) and stretch Enter in the joining hole (36), which is sheathed on respectively on 2 first group connecting part (37).

8. a kind of folding device for pram according to any one of claims 1 to 5, it is characterised in that the handle connecting plate (41) in forming a convergence hole (411) and 2 first convergence parts (412), the handle on the side towards the handle driving wheel (42) Driving wheel (42) in forming an engaging column (421) and 2 second convergence parts (422) on the side towards the handle connecting plate (41), The engaging column (421) protrudes into the convergence hole (411), which is sheathed on 2 first convergence part respectively (412) on.

9. a kind of folding device for pram according to claim 1, it is characterised in that the preceding connecting plate (31) and handle connect Fishplate bar (41) opposite end is formed with spacing bayonet (340), which includes sliding shoe (22) and be located at sliding shoe (22) shaft on outer end (21), the sliding shoe (22) can elastic telescopic be slidably connected to rear-wheel hack lever (51) upper end, should Shaft (21) can be caught in spacing bayonet (340) to lock preceding connecting plate (31) and handle connecting plate (41) and relatively rotate.

10. a kind of folding device for pram is to be set in the frame body of perambulator, it is characterised in that the folding of baby carriage Device includes:

One socket joint (10)；

The driven unit (33) is made of the material of elastically deformable, the front driven wheel (32) be used for against side and driven list The recoverable handle driving wheel when handle driving wheel (42) skid with respect to front driven wheel (32) is equipped between first (33) opposite flank (42) reserved space (443) of return.