CN2460409Y

CN2460409Y - Rotation adjusting mechanism of handle bar of carriage for children

Info

Publication number: CN2460409Y
Application number: CN 00268553
Authority: CN
Inventors: 沈海东
Original assignee: Goodbaby Group Corp
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2000-12-26
Filing date: 2000-12-26
Publication date: 2001-11-21
Anticipated expiration: 2010-12-26

Abstract

The utility model relates to a rotation adjusting mechanism of a handle bar of a carriage for children, which comprises a handle bar [1], a rotating piece [3], a push rod [5] and a fixing piece [4], wherein the fixing piece [4] is pivotally connected with the rotating piece [3]. The utility model is characterized in that a tooth core [6] has two working positions; when the utility model is positioned at the first working position, teeth on the outer surface of the tooth core [6] are simultaneously engaged with inner racks [8] on the inner surface of an inner cavity of the rotating piece [3] and the inner racks [8] on the inner surface of an inner cavity of the fixing piece [4], and the handle bar [1] is in a locking state at the moment; when the utility model is positioned at the second working position, the teeth on the outer surface of the tooth core [6] are only engaged with the inner racks [8] on the inner surface of the inner cavity of the fixing piece [4], and the handle bar [1] is in a rotating state at the moment. The fixing piece and the rotating piece can freely rotate to be used for adjusting the angle of the handle bar, and the utility model has the advantages of small friction force of the rotating piece and the fixing piece and long service life.

Description

The rotation regulating mechanism of baby carriage push handle bar

The utility model relates to the handgrip of a kind of perambulator, particularly perambulator.

In the prior art, the handle of perambulator, particularly umbrella handle vehicle generally with between the push rod of go-cart is captiveed joint, can not relatively rotate, a kind of rotating umbrella handle handle be arranged in rotation process, friction back locking mutually between the tooth of tumbler and connecting element, make its tooth bar very easily damage, shorten service life.

The purpose of this utility model is to provide a kind of rotation regulating mechanism of baby carriage push handle bar of long service life.

The technical solution of the utility model is: a kind of rotation regulating mechanism of baby carriage push handle bar, the tumbler that comprises handgrip, is connected to one with handgrip, push rod, the connecting element that is connected to one with push rod, by being connected, be provided with position local device between described tumbler and the connecting element between described connecting element and the described tumbler with the turning cylinder phase pivot of push rod almost parallel; Described position local device is to be equipped with interior tooth bar on the interior cavity wall of connecting element and tumbler, the teeth groove of tooth bar parallels with the axial line of turning cylinder in being somebody's turn to do, be with the tooth and the described interior mutually concavo-convex identical tooth core of tooth bar of outside face on the described turning cylinder, there is button on the top, outer end of described tooth core, and the flexible parts in top on the described tooth core; Described tooth core has two control positioies, and first control position is that the interior tooth bar of the intracavity inner surface of the interior tooth bar of tooth and the intracavity inner surface of tumbler of outside face of tooth core and connecting element is meshed simultaneously, and this moment, handgrip was in the lock state; Second control position is that the tooth of the outside face of tooth core only is meshed with the interior tooth bar of the intracavity inner surface of tumbler, or the tooth of the outside face of tooth core only is meshed with the interior tooth bar of the intracavity inner surface of connecting element, and this moment, handgrip was in rotary state.

The utility model compared with prior art has following advantage:

When press push button, the tooth core is in second control position, because the tooth core is when second control position, the tooth core only is meshed with the interior tooth bar of the intracavity inner surface of connecting element or tumbler, therefore connecting element and tumbler can freely rotate with turning cylinder [10] phase pivot, in order to regulate the angle of handgrip; And the tooth core axially moves into first control position behind the release button under the effect of elastomeric element, be meshed with tumbler and connecting element simultaneously, make connecting element and tumbler not to relatively rotate and locked, the conversion of two kinds of control positioies is convenient, particularly under second control position, the friction force of tumbler and connecting element is minimum, not fragile corresponding parts, long service life.

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

Accompanying drawing 1 is a three-dimensional structure diagram of the present utility model;

Accompanying drawing 2 is that tooth core of the present utility model is in the cutaway view under first control position;

Accompanying drawing 3 is that tooth core of the present utility model is in the cutaway view under second control position;

Accompanying drawing 4 is the B-B direction cutaway view of accompanying drawing 2; Wherein:

[1], handgrip; [2], button; [3], tumbler; [4], connecting element; [5], push rod; [6], tooth core; [7], spring; [8], interior tooth bar; [9], the portion of contracting in; [10], turning cylinder;

Embodiment: referring to accompanying drawing, a kind of rotation regulating mechanism of baby carriage push handle bar, the tumbler [3] that comprises handgrip [1], is connected to one with handgrip [1], push rod [5], the connecting element [4] that is connected to one with push rod [5], by being connected, be provided with position local device between described tumbler [3] and the connecting element [4] between described connecting element [4] and the described tumbler [3] with turning cylinder [10] phase pivot of push rod [5] almost parallel; It is characterized in that: described position local device be connecting element [4] with the interior cavity wall of tumbler [3] on be equipped with interior tooth bar [8], the teeth groove of tooth bar [8] parallels with the axial line of turning cylinder [10] in being somebody's turn to do, be with the tooth and the described interior mutually concavo-convex identical tooth core [6] of tooth bar [8] of outside face on the described turning cylinder [10], there is button [2] on the top, outer end of described tooth core [6], and described tooth core [6] is gone up the flexible parts in top; Described tooth core [6] has two control positioies, first control position is referring to accompanying drawing 2, the interior tooth bar [8] of the interior tooth bar [8] of the tooth of the outside face of tooth core [6] and the intracavity inner surface of tumbler [3] and the intracavity inner surface of connecting element [4] is meshed simultaneously, and handgrip this moment [1] is in the lock state.Referring to accompanying drawing 3, second control position is that the tooth of the outside face of tooth core [6] only is meshed with the interior tooth bar [8] of the intracavity inner surface of tumbler [3], or the tooth of the outside face of tooth core [6] only is meshed with the interior tooth bar [8] of the intracavity inner surface of connecting element [4], and handgrip this moment [1] is in rotary state.By pressing the button [2], can make button [2] withstand tooth core [6] and endwisely slip along turning cylinder [10], enter second control position from first control position, then handgrip [1] is free to rotate.

Be with spring [7] on the described turning cylinder [10], this spring [7] is described elastomeric element, one end of described spring [7] withstands on the tooth core [6], and the other end withstands on the connecting element [4], and described spring [7] has the trend that makes tooth core [6] be tending towards first control position.

There is the portion [9] of contracting in a section outer end of described tooth core [6], should in contract the diameter of portion [9] less than the diameter at the middle part of tooth core [6], and the portion [9] of contracting in described still inserts under second control position in the inner chamber of tumbler [3], and the portion [9] of contracting in this play the guiding role.

Described button [2] and described tumbler [3] be sliding block joint mutually, makes button [2] to endwisely slip in tumbler [2].

Claims

1, a kind of rotation regulating mechanism of baby carriage push handle bar, the tumbler [3] that comprises handgrip [1], is connected to one with handgrip [1], push rod [5], the connecting element [4] that is connected to one with push rod [5], by being connected, be provided with position local device between described tumbler [3] and the connecting element [4] between described connecting element [4] and the described tumbler [3] with turning cylinder [10] phase pivot of push rod [5] almost parallel; It is characterized in that: described position local device be connecting element [4] with the interior cavity wall of tumbler [3] on be equipped with interior tooth bar [8], the teeth groove of tooth bar [8] parallels with the axial line of turning cylinder [10] in being somebody's turn to do, be with the tooth and the described interior mutually concavo-convex identical tooth core [6] of tooth bar [8] of outside face on the described turning cylinder [10], there is button [2] on the top, outer end of described tooth core [6], and described tooth core [6] is gone up the flexible parts in top; Described tooth core [6] has two control positioies, first control position is that the interior tooth bar [8] of the intracavity inner surface of the interior tooth bar [8] of tooth and the intracavity inner surface of tumbler [3] of outside face of tooth core [6] and connecting element [4] is meshed simultaneously, and handgrip this moment [1] is in the lock state; Second control position is that the tooth of the outside face of tooth core [6] only is meshed with the interior tooth bar [8] of the intracavity inner surface of tumbler [3], or the tooth of the outside face of tooth core [6] only is meshed with the interior tooth bar [8] of the intracavity inner surface of connecting element [4], and handgrip this moment [1] is in rotary state.

2, the rotation regulating mechanism of baby carriage push handle bar according to claim 1, it is characterized in that: be with spring [7] on the described turning cylinder [10], this spring [7] is described elastomeric element, one end of described spring [7] withstands on the tooth core [6], the other end withstands on the connecting element [4], and described spring [7] has the trend that makes tooth core [6] be tending towards first control position.

3, the rotation regulating mechanism of baby carriage push handle bar according to claim 1, it is characterized in that: there is the portion [9] of contracting in a section outer end of described tooth core [6], should in contract the diameter of portion [9] less than the diameter at the middle part of tooth core [6], and the portion [9] of contracting in described still inserts in the inner chamber of tumbler [3] under second control position.

4, the rotation regulating mechanism of baby carriage push handle bar according to claim 1 is characterized in that: described button [2] and described tumbler [3] be sliding block joint mutually.