CN204846017U - A foldable baby stroller - Google Patents

Abstract

The utility model discloses a folding baby stroller, which comprises a handle, a front handrail, a front wheel component, a rear wheel component and a frame connecting rod component, wherein the handle comprises a handle pipe and a handle sleeve sleeved on the handle pipe; the front foot tube is connected with the handle tube through an unlocking component joint, the end part of the front handrail is movably arranged on the unlocking component, and the end part of the front handrail is connected with the middle part of the supporting tube through a handrail supporting iron sheet; one end of the supporting tube is connected with the unlocking component through a supporting joint, and the other end of the supporting tube is connected with the middle part of the rear foot tube; the foldable baby stroller is provided with a single-hand rotating folding mechanism, the handle tube and the front foot tube can be folded only by single-hand operation, and meanwhile, the front wheel assembly, the supporting tube, the handrail connecting iron sheet, the front handrail, the rear foot tube, the front foot tube, the basket tube and the rear wheel assembly are folded; the structure design is simple and ingenious, the use is very convenient, the assembly and the production are easy, and the market promotion value is high.

Description

A foldable baby stroller

technical field

The utility model relates to the technology in the field of strollers, in particular to a foldable baby stroller.

Background technique

With the improvement of people's living standards, baby strollers have been more and more widely used in families with babies due to their convenience and comfort. In order to meet the needs of sex, the baby carriage is mostly designed as a foldable structure. Like this, the baby carriage is in an open state when in use, and when not in use, the baby carriage can be folded so that the baby carriage can be folded into a smaller volume for storage or carrying. The structure and structure of the current baby stroller are complex and complicated to operate, which is a headache for most parents, especially when the parents hold the child in one hand and open or close the stroller in the other hand, they are often unable to do what they want; Small space, easy to carry, and easy to fold and operate have become technical problems that need to be solved urgently for foldable baby strollers.

Utility model content

In view of this, the utility model aims at the deficiencies of the prior art, and its main purpose is to provide a foldable baby stroller that can be operated with one hand, has a simple structure, is small in size, light in weight, and is easy to carry.

In order to achieve the above object, the utility model adopts the following technical solution: a foldable baby stroller, including a handle, a front armrest, a front wheel assembly, a rear wheel assembly and a frame link assembly, the handle includes There is a handle tube and a handle cover set on the handle tube. The handle tube is located at the handle cover and is equipped with a one-handed rotating and retracting mechanism. The frame link assembly includes a front leg tube, a rear leg tube, and a support tube. , support joints and rear foot joints; the front leg tube and the handle tube are articulated through an unlocking assembly, the end of the front armrest is movably mounted on the unlocking assembly, and the end of the front armrest is supported by the armrest supporting iron sheet The middle part of the tube is connected; one end of the support tube is connected to the unlocking assembly through the support joint, and the other end is connected to the middle part of the rear leg tube; the front wheel assembly is connected to the lower end of the front leg tube through the front leg joint, and the rear wheel component is connected to the rear leg joint through the rear leg joint. The lower end of the rear leg tube is connected; the one-handed rotating and retracting mechanism is connected to the unlocking assembly through a first pull wire, and the unlocking assembly is connected to the front foot joint through a second pull wire; the lower end of the front leg tube is connected to the lower end of the rear leg tube through A basket tube is connected with each other, and the upper end of the rear leg tube is movably connected with the middle part of the front leg tube.

As a preferred solution, the single-handed rotating and retracting mechanism includes a two-way lock assembly, a rotating member, a retractable guide rail, and a slider; The guide groove for the slider to move, the upper part of the slider cooperates with the inclined surface in the rotating part, the lower part of the slider cooperates with the guide groove, and the slider is connected with the first pull wire; the retractable guide rail and the rotating part are composed of two The road lock component is used for locking and unlocking; the secondary lock component is provided with a secondary lock button and a button return spring.

As a preferred solution, the unlocking assembly includes an upper handle joint, a return spring, a joint lock block, a joint lock block wrench, a supporting connecting iron piece, a joint paddle and a lower handle joint, the return spring, the joint lock block and The joint lock block wrench is installed on the joint side of the upper handle, and the supporting connecting iron piece and the joint pick are installed on the joint side of the lower handle; the joint of the upper handle is provided with a receiving groove, and one end of the return spring is placed in the receiving groove The inner end and the other end abut against the joint lock block, the joint lock block wrench cooperates with the joint lock block, and the joint lock block wrench is connected with the first pull wire.

As a preferred solution, the joint lock block is provided with two convex strips, the supporting connecting iron plate is provided with two arc grooves, and the joint paddle is provided with two positioning holes. One to one corresponding setting.

As a preferred solution, the front foot joint includes a front leg tube inner sleeve, a lock pin, a lock pin return spring, a reinforcing iron sheet and a front wheel set connecting sleeve, the front leg tube inner sleeve is sleeved on the front leg tube, and the lock pin One end of the return spring is connected with the inner sleeve of the front leg tube, and the other end is connected with the lock pin, and the lock pin is connected with the second stay wire, and the other end of the second stay wire is connected with the joint lock block and slides with the rotation of the joint lock block.

As a preferred solution, the rear wheel assembly includes a rear foot connecting pipe, a rear wheel shock absorbing mechanism, a rear wheel base and a rear wheel, the rear foot connecting pipe is sleeved on the rear foot joint, and the rear wheel shock absorbing mechanism is connected to the rear On the wheel connecting pipe and the rear wheel base, the rear wheel is installed on the rear wheel base.

As a preferred solution, the rear wheel assemblies are two symmetrical sets, and a brake assembly is arranged between the two rear wheels. The brake assembly includes a brake lever tube, a brake slider, a brake cable, a brake plate, and a brake fixing part and brake return spring, the brake fixing part is set on the brake lever tube, the brake plate is rotatably installed on the brake fixing part, the brake lever tube is connected between the two rear wheel bases; the brake slider is installed on The rear wheel seat is connected with the brake cable, and the other end of the brake cable is connected with the brake plate.

As a preferred solution, there are two front leg tubes, the two front leg tubes are parallel to each other, the lower part of the two front leg tubes is provided with a front leg connecting tube, the middle part of the two front leg tubes is provided with a seat horizontal tube, and the horizontal tube is provided with rest board.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically: the foldable baby stroller is provided with a one-handed rotating and retracting mechanism, and only one-hand operation is required to fold the handle tube and The front leg tube, and the front wheel assembly are folded at the same time, and then the support tube, the armrest connecting iron piece, the front armrest, the rear leg tube, the front leg tube, the basket tube and the rear wheel group are folded; the structure design is simple and ingenious, and it is extremely convenient to use and easy to Assembled and produced, it has great marketing value.

Description of drawings

Fig. 1 is the three-dimensional structural diagram of cart in the embodiment of the present utility model;

Fig. 2 is another three-dimensional structure diagram of the cart in the embodiment of the present utility model;

Fig. 3 is an exploded schematic view of the one-handed rotating and folding mechanism in the embodiment of the present invention;

Fig. 4 is an exploded schematic view of the unlocking assembly in the embodiment of the present invention;

Fig. 5 is the schematic diagram of front wheel joint in the embodiment of the utility model;

Fig. 6 is the schematic diagram of rear wheel assembly and brake assembly in the embodiment of the utility model;

Fig. 7 is a state diagram of the folded handle tube and front leg tube of the pushcart in the embodiment of the utility model;

Fig. 8 is a schematic diagram of the folding cart frame link assembly in the embodiment of the present invention;

Fig. 9 is a schematic diagram of the folding cart frame link assembly in the embodiment of the present invention

Fig. 10 is a cross-sectional view of the hand rotation and folding mechanism in the embodiment of the present utility model;

Fig. 11 is a schematic diagram of the structure between the rotating member and the slider in the embodiment of the present invention.

Description of drawings:

10. Handle

11. Handle tube 12. Handle cover

20. Front armrest

30. Front wheel assembly

40. Rear wheel assembly

41. Rear foot connecting pipe 42. Rear wheel damping mechanism

43. Rear wheel seat 44. Rear wheel

50. Frame connecting rod assembly

51. Armrest support iron sheet 52. Front leg tube

53. Rear leg tube 54. Support tube

55. Support joint 56. Hind foot joint

57. Rest board pipe 521. Forefoot connecting pipe

522, seat cross pipe 523, foot pedal

60. Manual rotation and folding mechanism

61. Rotating member 62. Collapsible guide rail

621. Guide groove

63, slider 64, slope

65. Secondary lock button 66. Button return spring

70. Unlock component

71, upper hand handle joint 711, accommodating groove

72, return spring 73, joint lock block

731, convex strip 74, joint lock block wrench

75. Support connecting iron sheet 751, arc groove

76. Joint pick 761. Positioning hole

77. Lower handlebar joint

80. Front foot joint

81. Front leg tube inner sleeve 82. Lock pin

83, lock pin return spring 84, reinforced iron sheet

85. Front wheel set connecting sleeve

100. The first pull wire

200. The second pull wire

300, basket tube

400. Brake assembly

401, brake lever tube 402, brake slider

403. Brake cable 404. Brake plate

405, brake fixing part 406, brake return spring.

Detailed ways

Please refer to shown in Fig. 1 to Fig. 11, it has shown the specific structure of the preferred embodiment of the present utility model, a kind of foldable baby stroller, comprises handle 10, front handrail 20, front wheel assembly 30, rear The wheel assembly 40 and the frame linkage assembly 50.

Wherein, the handle 10 includes a handle tube 11 and a handle cover 12 , and the handle cover 12 is provided with a one-hand rotating and folding mechanism 60 .

The frame link assembly 50 includes an armrest supporting iron sheet 51, a front leg tube 52, a rear leg tube 53, a support tube 54, a support joint 55, and a rear leg joint 56; Connection, the end of the front armrest 20 is movably installed on the unlocking assembly 70, the end of the front armrest 20 is connected to the middle of the support tube 54 through the armrest support iron sheet 51; one end of the support tube 54 is connected to the unlocking assembly 70 through the support joint 55 The other end is connected to the middle part of the rear foot tube 53; the front wheel assembly 30 is connected to the lower end of the front foot tube 52 through the front foot joint 80, and the rear wheel assembly 40 is connected to the lower end of the rear foot tube 53 through the rear foot joint 56; The closing mechanism 60 is connected to the unlocking assembly 70 through the first pull wire 100, and the unlocking assembly 70 is connected to the front foot joint 80 through the second pull wire 200; the lower end of the front leg tube 52 and the lower end of the rear leg tube 53 are connected to each other through a basket tube 300 , the upper end of the rear leg tube 53 is movably connected to the middle part of the front leg tube 52 . The front leg tube 52 has two branches, the two front leg tubes 52 are parallel to each other, the lower part of the two front leg tubes 52 is provided with a front leg connecting tube 521, and the middle part of the two front leg tubes 52 is provided with a seat horizontal tube 522; the seat horizontal tube 522 is movable There is a rest board pipe 57 connected to it. A pedal 523 is arranged above the front leg connecting pipe 521 , and the pedal 523 is connected between the two front leg pipes 52 .

The one-handed rotating and retracting mechanism 60 includes a two-way lock assembly, a rotating member 61, a retractable guide rail 62, and a slider 63; The guide groove 621 for the slider to move, the upper part of the slider 63 cooperates with the inclined surface 64 in the rotating part 61, the lower part of the slider 61 cooperates with the guide groove 621, and the slider 61 is connected with the first pull wire; the retractable guide rail 62 It is locked and unlocked with the rotating member 61 by a secondary lock assembly; the secondary lock assembly is provided with a secondary lock button 65 and a button return spring 66 .

The unlocking assembly 70 includes an upper handle joint 71, a return spring 72, a joint lock block 73, a joint lock block wrench 74, a supporting connecting iron plate 75, a joint plectrum 76 and a lower handle joint 77, the return spring 72, the joint lock Block 73 and joint lock block wrench 74 are installed on the joint side of the upper handle; the support connecting iron plate 75 and joint plectrum 76 are installed on the joint 77 side of the lower handle; The joint lock block 73, the joint lock block wrench 74, the supporting connecting iron piece 75 and the joint plectrum 76 are clamped in the same space, and the handle joint 71 is provided with an accommodation groove 711, and one end of the return spring 72 is placed in the accommodation In the groove 711, the other end abuts against the joint lock block 73, and the joint lock block wrench 74 is matched with the joint lock block 73. The joint lock block wrench 74 is provided with a limit slope, and the joint lock block 73 is also provided with a corresponding Limiting ramps, the joint locking block 73 rotates with the first pull wire pulling the joint locking block wrench under the action of the two limiting ramps, and at the same time squeezes the return spring 72 and moves toward the accommodating groove 711 . The joint lock block wrench 74 is connected with the first pull wire 100 . The joint lock block 73 is provided with two convex strips 731, the supporting connecting iron plate 75 is provided with two arc grooves 751, and the joint paddle 76 is provided with two positioning holes 761, the convex strip 731, the arc groove 751, and the positioning hole 761. One to one corresponding setting. The convex strip 731 and the positioning hole 761 are mainly used to realize the locking and unlocking functions of the upper handle joint 71 and the lower handle joint 77 . The arc slot 751 mainly controls the rotation angle of the joint locking block 73 through the protrusion 731 passing through the arc slot 751 .

The front foot joint 80 includes a front foot tube inner sleeve 81, a lock pin 82, a lock pin return spring 83, a reinforcing iron sheet 84, and a front wheel set connecting sleeve 85. One end of the position spring 83 is connected with the inner sleeve 81 of the front leg tube, and the other end is connected with the lock pin 82, and the lock pin 82 is connected with the second stay wire 200, and the other end of the second stay wire 200 is connected with the joint lock block 73 and follows the joint lock block 73 rotates and slides, thereby controlling the second pull wire 200 to pull the lock pin 82 to unlock, and the lock pin return spring 83 controls the locking function of the lock pin 82 .

The rear wheel assembly 40 includes a rear foot connecting pipe 41, a rear wheel shock absorbing mechanism 42, a rear wheel base 43, and a rear wheel 44. The rear foot connecting pipe 41 is set on the rear foot joint 56, and the rear wheel shock absorbing mechanism 42 is connected to the rear wheel. On the wheel connecting pipe 41 and the rear wheel base 43, the rear wheel 44 is installed on the rear wheel base 43.

The rear wheel assembly 40 is two sets of symmetry, and a brake assembly 400 is arranged between the two rear wheels 44. The brake assembly 400 includes a brake lever tube 401, a brake slider 402, a brake cable 403, a brake plate 404, and a brake fixing part 405 and brake return spring 406, the brake fixing part 405 is sleeved on the brake lever tube 401, the brake plate 404 is rotatably mounted on the brake fixing part 405, and the brake lever tube 401 is connected to the two rear wheel bases 43. Between; the brake slider 402 is installed in the rear wheel base 43 and connected with the brake cable 403, the other end of the brake cable 403 is connected with the brake plate 404. After stepping on the brake plate 404, the brake cable pulls the brake slider to perform the rear wheel brake operation; when the brake plate is lifted, under the action of the brake return spring, the brake slider cancels the braking effect under the traction of the brake cable.

Describe the folding process of the folding baby stroller in detail:

First, press the secondary lock button, rotate the rotary member, the inclined plane inside the rotary member pushes the slider to slide in the guide groove, and at this time, the slider pulls the first pull wire.

Secondly, the first pull wire pulls the joint lock block wrench, and the joint lock block wrench and the joint lock block force the joint lock block to squeeze the return spring to move toward the accommodating groove under the action of each other's limit slope, and the joint lock block wrench overcomes the problem through the limit slope. The power of the return spring pushes the joint lock block, so that the convex strip on the joint lock block is separated from the limit hole on the joint paddle. The upper handle joint and the lower handle joint can rotate relative to each other, and the rotation is limited by the arc groove on the support connecting iron piece. position, so that the handlebar tube and the front leg tube are folded together, as shown in Figure 7.

Secondly, when this joint lock block drives the second backguy wire to pull the lock pin on the front foot joint when rotating, under tension, the lock pin overcomes the lock pin back-moving spring and connects the slot in the reinforced iron plate with the front foot to separate, so that the front wheel group and The front leg tube can rotate around the axis, so as to fold the front leg tube and the front wheel assembly, as shown in FIG. 8 .

Finally, fold the support tube, armrest connecting iron sheet, front armrest, rear leg tube, front leg tube, vegetable basket tube and rear wheel set, the process is shown in Figure 7-9.

The key point of the design of the utility model is that the foldable baby stroller is equipped with a one-handed rotating and closing mechanism, and only one-hand operation is required to close the handle tube and the front leg tube, and at the same time close the front wheel assembly, and then close the Combined support tube, armrest connecting iron sheet, front armrest, rear leg tube, front leg tube, vegetable basket tube and rear wheel set; the structure design is simple and ingenious, very convenient to use, easy to assemble and produce, and has great market promotion value.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model in any way, so any minor modifications, equivalent changes and changes made to the above embodiments according to the technical essence of the present utility model Modifications still belong to the scope of the technical solution of the utility model.

Claims (8)

1. the virgin go-cart of collapsible baby, include hand handle, front handrail, front component, wheel assembly and vehicle frame connecting rod assembly, it is characterized in that: described hand is including handle pipe and being set in the handlebar grips cover in handle pipe, this handle pipe is positioned at handlebar grips cover place and is provided with singlehanded rotation retracting mechanism, and described vehicle frame connecting rod assembly includes front foot pipe, rear foot tube, support tube, support joint and rear foot joint; Described front foot pipe is connected by a unlock component joint with handle pipe, and described front armrest end part is installed in unlock component movably, and described front armrest end part is connected with in the middle part of support tube by arm supports iron plate; Described support tube one end is connected with unlock component by support joint, the other end is connected with in the middle part of rear foot tube; Described front component is connected with the bottom of front foot pipe by forward foot in a step joint, and described wheel assembly is connected with rear foot tube bottom by rear foot joint; Described one hand is rotated retracting mechanism and is connected by the first bracing wire with unlock component, and described unlock component is connected by the second bracing wire with forward foot in a step joint; Be interconnected by a food basket pipe between described front foot pipe bottom and rear foot tube bottom, described rear foot tube upper end is connected with the middle part of front foot pipe is movable.

2. the virgin go-cart of a kind of collapsible baby according to claim 1, is characterized in that: described one hand rotates retracting mechanism and includes two road lock sets, revolving part, folds guide rail and slide block; Described revolving part inside is provided with the inclined-plane coordinated with slide block, and fold guide rail and be provided with the guide groove supplying slide block activity, described slide block top coordinates with the inclined-plane in revolving part, and described slide block bottom coordinates with guide groove, and this slide block is connected with the first bracing wire; Describedly fold guide rail and revolving part is undertaken locking and unlocking by two road lock sets; This two roads lock set is provided with two road lock button and button retracing springs.

3. the virgin go-cart of a kind of collapsible baby according to claim 1, it is characterized in that: described unlock component includes left-hand seat joint, retracing spring, joint lock dog, joint lock dog spanner, support and connection iron plate, joint plectrum and assistant joint, described retracing spring, joint lock dog and joint lock dog spanner are installed on left-hand seat articular side, and described support and connection iron plate and joint plectrum are installed on sets about articular side; Described left-hand seat is provided with a storage tank joint, and described retracing spring one end is placed in this storage tank, the other end abuts with joint lock dog, and described joint lock dog spanner matches with joint lock dog, and described joint lock dog spanner is connected with the first bracing wire.

4. the virgin go-cart of a kind of collapsible baby according to claim 3, it is characterized in that: described joint lock dog is provided with two raised lines, described support and connection iron plate is provided with two arc grooves, and described joint plectrum is provided with two knock holees, and this raised line, arc groove, knock hole one_to_one corresponding are arranged.

5. the virgin go-cart of a kind of collapsible baby according to claim 3, it is characterized in that: described forward foot in a step joint includes front foot pipe inner sleeve, lock pin, lock pin pull back spring, strengthens iron plate and front wheels adapter sleeve, described front foot pipe inner sleeve is set in front foot pipe, described lock pin pull back spring one end is connected with front foot pipe inner sleeve, the other end is connected with lock pin, this lock pin is connected with the second bracing wire, and the other end of this second bracing wire is connected with joint lock dog and rotates with this joint lock dog and slide.

6. the virgin go-cart of a kind of collapsible baby according to claim 1, it is characterized in that: described wheel assembly includes rear foot connection pipe, rear wheel shock-absorbing mechanism, rear wheel seat and trailing wheel, this rear foot connection pipe is set on rear foot joint, described rear wheel shock-absorbing mechanism is connected on trailing wheel connection pipe and rear wheel seat, and described trailing wheel is installed on rear wheel seat.

7. the virgin go-cart of a kind of collapsible baby according to claim 6, it is characterized in that: described wheel assembly is two symmetrical covers, brake assemblies is provided with between described two trailing wheels, this brake assemblies includes brake rod tube, brake slide block, brake bracing wire, braking vane, brake connecting element and brake retracing spring, this brake connecting element is set on brake rod tube, described braking vane is rotatably mounted on brake connecting element, and this brake rod tube is connected between two rear wheel seats; This brake slide block to be installed in rear wheel seat and to be connected with brake bracing wire, and the other end of this brake bracing wire is connected with braking vane.

8. the virgin go-cart of a kind of collapsible baby according to claim 1, it is characterized in that: described front foot pipe has two, these two front foot pipe are parallel to each other, and two front foot pipe bottoms are provided with forward foot in a step connection pipe, be provided with seat transverse tube in the middle part of two front foot pipe, this transverse tube is provided with rest board.