CN2444845Y - Three-wheel pushchair - Google Patents

Abstract

The utility model relates to a three-wheel running carriage. The front parts of two push rods [12] are respectively and rotatablely connected with the rear parts of two front legs [9]. Front wheels [1] are arranged at the front end parts of the front legs [9]. The front legs [9] are rotatablely connected with the front part of a lower connection rod [8]. The upper end parts of rear legs [13] are rotatablely connected with the push rods [12]. The rear legs [13] are rotatablely connected with the rear part of the lower connection rod [8]. Rear wheels [20] are arranged at the lower parts of the rear legs [13]. The utility model is characterized in that the front legs [9] or the lower connection rod [8] is rotatablely connected with a connection component [4] of a front pedal; a locking device is arranged between the connection component [4] of the front pedal and the front legs [9]. Users can sit to face forwards or backwards by rotating a backrest rod. The conversion of two work states is easy and the utility model has the advantage of simple structure.

Description

A kind of Three-wheel car

The utility model relates to a kind of Three-wheel car.

In the prior art, U.S. Pat 5669624 and US 5590896 disclose a kind of vehicle frame of Three-wheel car, its structure is that the front portion of two pushing hands bars is rotatably connected with the rear portion of two forelegs respectively, and be provided with lockout mechanism between described pushing hands bar and the described foreleg, the front portion of described two forelegs is crooked symmetrically to the vertical central plane of symmetry of two pushing hands bars, and the leading section of described two forelegs is provided with front-wheel, described front-wheel is positioned on the vertical central plane of symmetry of described two pushing hands bars, the front portion of lower link is rotatably connected on the described foreleg, the upper end of back leg is rotationally connected with on the described pushing hands bar, described back leg also is rotatably connected with the rear portion of lower link, two trailing wheels are symmetrical arranged in the left and right sides of vertical central plane of symmetry of described pushing hands bar, and described trailing wheel is arranged at the bottom of described back leg.Therefore the back support bar of this three-wheel vehicle can not be regulated, and can only make occupant's face forward, is mode back to face with go-cart person.Preceding tread plate is fixed on the foreleg, makes this three-wheel vehicle cushion when the baby is in lying posture be shorter than baby's height.

The purpose of this utility model is to provide a kind of occupant of making to select the Three-wheel car of sitting posture or lying posture two states.

The technical solution of the utility model is: a kind of Three-wheel car, the front portion of two pushing hands bars is rotatably connected with the rear portion of two forelegs respectively, and be provided with lockout mechanism between described pushing hands bar and the described foreleg, the front portion of described two forelegs is crooked symmetrically to the vertical central plane of symmetry of two pushing hands bars, and the leading section of described two forelegs is provided with front-wheel, described front-wheel is positioned on the vertical central plane of symmetry of described two pushing hands bars, the front portion of lower link is rotatably connected on the described foreleg, the upper end of back leg is rotationally connected with on the described pushing hands bar, described back leg also is rotatably connected with the rear portion of lower link, two trailing wheels are symmetrical arranged in the left and right sides of vertical central plane of symmetry of described pushing hands bar, and described trailing wheel is arranged at the bottom of described back leg or the bottom of lower link; The front running board attaching parts has been rotatably connected on described foreleg or the lower link, the leading section of described front running board attaching parts is provided with curved front running board, be provided with blocking device between described front running board attaching parts and described foreleg or the described lower link, described front running board attaching parts has two control positioies, first control position is that described front running board attaching parts and described lower link are positioned at same horizontal surface position roughly, and this moment, described blocking device was in the lock state; Second control position is the below of turning over and be positioned at lower link under the described front running board attaching parts.

The utility model compared with prior art has following advantage:

Because front running board attaching parts and foreleg or lower link are rotatably connected and are provided with blocking device, when at first control position, the front running board attaching parts has extended and has been positioned at seat cushion on the lower link, can lie in leg on the front running board attaching parts when baby is in lying posture, the tread plate attaching parts was stable when first control position before described blocking device can guarantee; When putting down the front running board attaching parts, can the baby be in sitting posture, both feet are stepped on described front running board.The conversion of two kinds of control positioies is convenient, and is simple in structure.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is a structural front view of the present utility model;

Structural front view when accompanying drawing 2 is a back support bar translation-angle of the present utility model, it is available to have five angles;

Accompanying drawing 3 is a birds-eye view of the present utility model;

Accompanying drawing 4 is the schematic diagram of the position locking mechanism between back support bar of the present utility model and the lower link;

Accompanying drawing 5 is the structural representation of vehicle frame of the present utility model under folded state; Wherein: [1], front-wheel; [2], front limit piece; [3], front running board; [4], front running board attaching parts; [7], preceding locking press button; [8], lower link; [9], foreleg; [10], back support bar; [11], ceiling; [12], pushing hands bar; [13], back leg; [14], back locking press button; [17], back limiting stopper; [18], back step attaching parts; [19], back step; [20], trailing wheel; [21], spring; [22], securing rod; [23], teeth groove.

Embodiment: to accompanying drawing 3, following being rotatably connected is pivotal joint referring to accompanying drawing 1.A kind of Three-wheel car, the front portion of two pushing hands bars [12] is rotatably connected with the rear portion of two forelegs [9] respectively, and be provided with lockout mechanism between described pushing hands bar [12] and the described foreleg [9], lockout mechanism is identical at the lockout mechanism at this place with two US Patent of this paper description of the Prior Art, it is prior art, during release, foreleg [9] can rotate with respect to both portions of being rotatably connected with pushing hands bar [12], makes that the Three-wheel car is folded.The front portion of described two forelegs [9] is crooked symmetrically to the vertical central plane of symmetry of two pushing hands bars [12], and the leading section of described two forelegs [9] is provided with front-wheel [1], described front-wheel [1] is positioned on the vertical central plane of symmetry of described two pushing hands bars [12], the front portion of lower link [8] is rotatably connected on the described foreleg [9], the upper end of back leg [13] is rotationally connected with on the described pushing hands bar [12], described back leg [13] also is rotatably connected with the rear portion of lower link [8], two trailing wheels [20] are symmetrical arranged in the left and right sides of vertical central plane of symmetry of described pushing hands bar [12], and described trailing wheel [20] is arranged at the bottom of described back leg [13], and the body frame structure for automotive of above-mentioned Three-wheel car is identical with the structural principle of US 5669624 and US5590896.The be rotatably connected bottom of back support bar [10] of the approximate mid-section of described lower link [8], back cushion and backrest cushion before the front-back of described back support bar [10] is respectively equipped with are provided with position locking mechanism between described back support bar [10] and the described lower link [8].Described position locking mechanism has multiple, those skilled in the art can imagine, backrest angle regulating mechanism for example of the prior art can use, accompanying drawing 4 provides a kind of lockout mechanism, be positioned at different teeth groove [23] by securing rod [22], make that backrest [10] can be locked at least two control positioies.Described position locking mechanism makes described back support bar [10] have two control positioies at least, first control position is back support bar [10] forwards tilt (as the back support bar of the long and two-short dash line of accompanying drawing 1), second control position is back support bar [10] tilted rearward (back support bar of representing as the solid line of accompanying drawing 1), the front lower place of described back support bar [10] is provided with the preceding seat cushion that is connected on the lower link [8], and the back lower place of described back support bar [10] is provided with the back seat cushion that is connected on the lower link [8].

The cloth of seat cushion upper surface and the preceding back cushion on the described back support bar [10] connect as one before described, and the cloth of described back seat cushion upper surface and the backrest cushion on the described back support bar [10] connect as one.

Front running board attaching parts [4] has been rotatably connected on described foreleg [9] or the lower link [8], the leading section of described front running board attaching parts [4] is provided with curved front running board [3], be provided with blocking device between described front running board attaching parts [4] and described foreleg [9] or the lower link [8] stated, blocking device can be that a rotatable support that is connected on the foreleg [9] is set in the below of front running board attaching parts [4], described front running board attaching parts [4] has two control positioies, first control position is that described front running board attaching parts [4] and described preceding cushion are positioned at same horizontal surface position roughly, this moment, described blocking device was in the lock state, supports support is on described front running board attaching parts [4], make described front running board attaching parts [4] not rotate, front running board attaching parts [4] length of preceding seat cushion that extended then, the occupant can be in lying posture; Second control position be blocking device after the first control position release, turning under the described front running board attaching parts [4] to being angle less than 90 degree with preceding cushion, shown in the solid line of accompanying drawing, then the occupant can be in sitting posture, front running board [3] is used for placing both feet.Described blocking device can also have other structure, the preceding locking press button [7] as shown in accompanying drawing 1, accompanying drawing 2, and when pressing button [7], unlock lock mechanism.

Described front running board attaching parts [4] is provided with the cloth pad, and the upper surface cloth of described cloth pad and described preceding seat cushion connect as one.

Described foreleg [9] is provided with front limit piece [2], and when described front running board attaching parts [4] was positioned at second control position, described front running board attaching parts [4] contacted with described front limit piece [2].

The structure of back step attaching parts [18] is identical with the structural principle of front running board attaching parts [4], and lockout mechanism is also identical, just is used for the occupant and takes backward.Back step attaching parts [18] has been rotatably connected on described back leg [13] or the lower link [8], the rearward end of described back step attaching parts [18] is provided with curved back step [19], be provided with blocking device between described back step attaching parts [18] and described back leg [13] or the described lower link [8], described back step attaching parts [18] has two control positioies, first control position is that described back step attaching parts [18] and described recoil pad are positioned at same horizontal surface position roughly, and this moment, described blocking device was in the lock state; Second control position is to turn under the described back step attaching parts [18] to being the angle of spending less than 90 with recoil pad.

Described back step attaching parts [18] is provided with the cloth pad, and the upper surface cloth of described cloth pad and described back seat cushion connect as one.

Described back leg [13] is provided with back limiting stopper [17], and when described back step attaching parts [18] was positioned at second control position, described back step attaching parts [18] contacted with described back limiting stopper [17].

Claims (6)

1, a kind of Three-wheel car, the front portion of two pushing hands bars [12] is rotatably connected with the rear portion of two forelegs [9] respectively, and be provided with lockout mechanism between described pushing hands bar [12] and the described foreleg [9], the front portion of described two forelegs [9] is crooked symmetrically to the vertical central plane of symmetry of two pushing hands bars [12], and the leading section of described two forelegs [9] is provided with front-wheel [1], described front-wheel [1] is positioned on the vertical central plane of symmetry of described two pushing hands bars [12], the front portion of lower link [8] is rotatably connected on the described foreleg [9], the upper end of back leg [13] is rotationally connected with on the described pushing hands bar [12], described back leg [13] also is rotatably connected with the rear portion of lower link [8], two trailing wheels [20] are symmetrical arranged in the left and right sides of vertical central plane of symmetry of described pushing hands bar [12], and described trailing wheel [20] is arranged at the bottom of described back leg [13] or the bottom of lower link [8]; It is characterized in that: front running board attaching parts [4] has been rotatably connected on described foreleg [9] or the lower link [8], be provided with blocking device between described front running board attaching parts [4] and described foreleg [9] or the described lower link [8], described front running board attaching parts [4] has two control positioies, first control position is that described front running board attaching parts [4] and described lower link [8] are positioned at same horizontal surface position roughly, and this moment, described blocking device was in the lock state; Second control position is the below of turning over and be positioned at lower link [8] under the described front running board attaching parts [4].

2, Three-wheel car according to claim 1, it is characterized in that: the be rotatably connected bottom of back support bar [10] of the approximate mid-section of described lower link [8], back cushion and backrest cushion before the front-back of described back support bar [10] is respectively equipped with, be provided with position locking mechanism between described back support bar [10] and the described lower link [8], described position locking mechanism makes described back support bar [10] have two control positioies at least, first control position is that back support bar [10] forwards tilts, second control position is back support bar [a 10] tilted rearward, the front lower place of described back support bar [10] is provided with preceding seat cushion, and the back lower place of described back support bar [10] is provided with the back seat cushion.

3, Three-wheel car according to claim 2, it is characterized in that: the cloth of seat cushion upper surface and the preceding back cushion on the described back support bar [10] connect as one before described, and the cloth of described back seat cushion upper surface and the backrest cushion on the described back support bar [10] connect as one.

4, Three-wheel car according to claim 3 is characterized in that: described front running board attaching parts [4] is provided with the cloth pad, and the upper surface cloth of described cloth pad and described preceding seat cushion connect as one.

5, Three-wheel car according to claim 3, it is characterized in that: described foreleg [9] is provided with front limit piece [2], when described front running board attaching parts [4] is positioned at second control position, described front running board attaching parts [4] contacts with described front limit piece [2], and front limit piece [2] forms described front running board attaching parts [4] and supports.

6, Three-wheel car according to claim 1 is characterized in that: the leading section of described front running board attaching parts [4] is provided with curved front running board [3],

Images